./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_afa1b4ba-25f8-4ff3-a98c-a49cd0bef233/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa1b4ba-25f8-4ff3-a98c-a49cd0bef233/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa1b4ba-25f8-4ff3-a98c-a49cd0bef233/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa1b4ba-25f8-4ff3-a98c-a49cd0bef233/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa1b4ba-25f8-4ff3-a98c-a49cd0bef233/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa1b4ba-25f8-4ff3-a98c-a49cd0bef233/bin/utaipan-gh47qXpMRh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash efc4c52a722d63f9628a5791b5e97bc661a62d89deb074bdb4352c608e6a3dd1 --- 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 [2022-12-14 08:43:48,855 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:43:48,856 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:43:48,870 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:43:48,870 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:43:48,871 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:43:48,872 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:43:48,873 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:43:48,874 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:43:48,875 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:43:48,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:43:48,876 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:43:48,876 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:43:48,877 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:43:48,878 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:43:48,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:43:48,879 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:43:48,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:43:48,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:43:48,882 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:43:48,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:43:48,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:43:48,885 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:43:48,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:43:48,888 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:43:48,888 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:43:48,888 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:43:48,889 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:43:48,889 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:43:48,890 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:43:48,890 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:43:48,890 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:43:48,891 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:43:48,891 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:43:48,892 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:43:48,892 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:43:48,893 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:43:48,893 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:43:48,893 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:43:48,894 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:43:48,894 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:43:48,895 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa1b4ba-25f8-4ff3-a98c-a49cd0bef233/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 08:43:48,910 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:43:48,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:43:48,911 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:43:48,911 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:43:48,911 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:43:48,911 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:43:48,911 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:43:48,912 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:43:48,912 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:43:48,912 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:43:48,912 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:43:48,912 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:43:48,912 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:43:48,912 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:43:48,912 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:43:48,913 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:43:48,913 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:43:48,913 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:43:48,913 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:43:48,913 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:43:48,914 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:43:48,914 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:43:48,914 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:43:48,914 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:43:48,914 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:43:48,914 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:43:48,914 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:43:48,914 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:43:48,914 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:43:48,915 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:43:48,915 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:43:48,915 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:43:48,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:43:48,915 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:43:48,915 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:43:48,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:43:48,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:43:48,916 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:43:48,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:43:48,916 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:43:48,916 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:43:48,916 INFO L138 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_afa1b4ba-25f8-4ff3-a98c-a49cd0bef233/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa1b4ba-25f8-4ff3-a98c-a49cd0bef233/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efc4c52a722d63f9628a5791b5e97bc661a62d89deb074bdb4352c608e6a3dd1 [2022-12-14 08:43:49,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:43:49,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:43:49,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:43:49,125 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:43:49,125 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:43:49,126 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa1b4ba-25f8-4ff3-a98c-a49cd0bef233/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M1.c [2022-12-14 08:43:51,771 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:43:52,088 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:43:52,089 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa1b4ba-25f8-4ff3-a98c-a49cd0bef233/sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M1.c [2022-12-14 08:43:52,112 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa1b4ba-25f8-4ff3-a98c-a49cd0bef233/bin/utaipan-gh47qXpMRh/data/c17cef8cc/7aa71cec3654496db7455fda844d97cc/FLAG9f31e4cd7 [2022-12-14 08:43:52,126 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa1b4ba-25f8-4ff3-a98c-a49cd0bef233/bin/utaipan-gh47qXpMRh/data/c17cef8cc/7aa71cec3654496db7455fda844d97cc [2022-12-14 08:43:52,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:43:52,130 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:43:52,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:43:52,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:43:52,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:43:52,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:43:52" (1/1) ... [2022-12-14 08:43:52,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@283c2eec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:43:52, skipping insertion in model container [2022-12-14 08:43:52,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:43:52" (1/1) ... [2022-12-14 08:43:52,143 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:43:52,214 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:43:52,367 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_afa1b4ba-25f8-4ff3-a98c-a49cd0bef233/sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M1.c[1806,1819] [2022-12-14 08:43:52,452 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 08:43:52,452 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 08:43:52,454 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-14 08:43:52,458 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 08:43:52,459 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 08:43:52,460 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 08:43:52,460 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 08:43:52,472 WARN L623 FunctionHandler]: Unknown extern function __startrek_get_pi_lock [2022-12-14 08:43:52,474 WARN L623 FunctionHandler]: Unknown extern function __startrek_release_pi_lock [2022-12-14 08:43:52,475 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-14 08:43:52,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:43:52,808 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:43:52,817 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_afa1b4ba-25f8-4ff3-a98c-a49cd0bef233/sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M1.c[1806,1819] [2022-12-14 08:43:52,827 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 08:43:52,827 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 08:43:52,828 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-14 08:43:52,829 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 08:43:52,829 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 08:43:52,829 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 08:43:52,829 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 08:43:52,831 WARN L623 FunctionHandler]: Unknown extern function __startrek_get_pi_lock [2022-12-14 08:43:52,832 WARN L623 FunctionHandler]: Unknown extern function __startrek_release_pi_lock [2022-12-14 08:43:52,832 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-14 08:43:52,995 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:43:53,011 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:43:53,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:43:53 WrapperNode [2022-12-14 08:43:53,012 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:43:53,013 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:43:53,013 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:43:53,013 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:43:53,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:43:53" (1/1) ... [2022-12-14 08:43:53,075 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:43:53" (1/1) ... [2022-12-14 08:43:53,290 INFO L138 Inliner]: procedures = 70, calls = 5187, calls flagged for inlining = 27, calls inlined = 27, statements flattened = 9753 [2022-12-14 08:43:53,290 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:43:53,291 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:43:53,291 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:43:53,291 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:43:53,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:43:53" (1/1) ... [2022-12-14 08:43:53,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:43:53" (1/1) ... [2022-12-14 08:43:53,363 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:43:53" (1/1) ... [2022-12-14 08:43:53,363 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:43:53" (1/1) ... [2022-12-14 08:43:53,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:43:53" (1/1) ... [2022-12-14 08:43:53,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:43:53" (1/1) ... [2022-12-14 08:43:53,505 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:43:53" (1/1) ... [2022-12-14 08:43:53,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:43:53" (1/1) ... [2022-12-14 08:43:53,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:43:53,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:43:53,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:43:53,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:43:53,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:43:53" (1/1) ... [2022-12-14 08:43:53,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:43:53,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa1b4ba-25f8-4ff3-a98c-a49cd0bef233/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:43:53,598 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa1b4ba-25f8-4ff3-a98c-a49cd0bef233/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:43:53,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa1b4ba-25f8-4ff3-a98c-a49cd0bef233/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:43:53,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:43:53,633 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-12-14 08:43:53,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-12-14 08:43:53,633 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-12-14 08:43:53,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-12-14 08:43:53,633 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-12-14 08:43:53,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-12-14 08:43:53,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 08:43:53,633 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-12-14 08:43:53,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-12-14 08:43:53,634 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-12-14 08:43:53,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-12-14 08:43:53,634 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-12-14 08:43:53,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-12-14 08:43:53,634 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-12-14 08:43:53,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-12-14 08:43:53,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 08:43:53,634 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-12-14 08:43:53,634 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-12-14 08:43:53,634 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-12-14 08:43:53,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-12-14 08:43:53,634 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-12-14 08:43:53,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-12-14 08:43:53,634 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-12-14 08:43:53,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-12-14 08:43:53,634 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-14 08:43:53,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-14 08:43:53,635 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-14 08:43:53,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-14 08:43:53,635 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-12-14 08:43:53,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-12-14 08:43:53,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 08:43:53,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 08:43:53,635 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-12-14 08:43:53,635 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-12-14 08:43:53,635 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-12-14 08:43:53,635 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-12-14 08:43:53,635 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-12-14 08:43:53,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-12-14 08:43:53,635 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-12-14 08:43:53,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-12-14 08:43:53,635 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 08:43:53,635 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 08:43:53,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:43:53,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:43:53,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:43:53,636 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-12-14 08:43:53,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-12-14 08:43:53,636 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-12-14 08:43:53,636 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-12-14 08:43:53,636 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-12-14 08:43:53,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-12-14 08:43:53,636 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-12-14 08:43:53,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-12-14 08:43:54,182 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:43:54,185 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:44:05,301 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:44:05,615 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:44:05,616 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 08:44:05,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:44:05 BoogieIcfgContainer [2022-12-14 08:44:05,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:44:05,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:44:05,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:44:05,624 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:44:05,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:43:52" (1/3) ... [2022-12-14 08:44:05,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@741b2957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:44:05, skipping insertion in model container [2022-12-14 08:44:05,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:43:53" (2/3) ... [2022-12-14 08:44:05,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@741b2957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:44:05, skipping insertion in model container [2022-12-14 08:44:05,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:44:05" (3/3) ... [2022-12-14 08:44:05,626 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_aso.4.M1.c [2022-12-14 08:44:05,640 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:44:05,640 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 08:44:05,716 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:44:05,721 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=FINITE_AUTOMATA, 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;@7c7ed961, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:44:05,721 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 08:44:05,732 INFO L276 IsEmpty]: Start isEmpty. Operand has 3519 states, 1990 states have (on average 1.1658291457286432) internal successors, (2320), 1994 states have internal predecessors, (2320), 1504 states have call successors, (1504), 23 states have call predecessors, (1504), 23 states have return successors, (1504), 1502 states have call predecessors, (1504), 1504 states have call successors, (1504) [2022-12-14 08:44:05,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 952 [2022-12-14 08:44:05,775 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:44:05,776 INFO L195 NwaCegarLoop]: trace histogram [210, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:44:05,776 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:44:05,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:44:05,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1867115780, now seen corresponding path program 1 times [2022-12-14 08:44:05,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:44:05,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409890534] [2022-12-14 08:44:05,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:44:05,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms