./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_c5b53e6c-7b60-44e9-bee5-13dda111636a/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b53e6c-7b60-44e9-bee5-13dda111636a/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b53e6c-7b60-44e9-bee5-13dda111636a/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b53e6c-7b60-44e9-bee5-13dda111636a/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b53e6c-7b60-44e9-bee5-13dda111636a/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b53e6c-7b60-44e9-bee5-13dda111636a/bin/utaipan-ByfvJB40ur --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 d66bda3f947b403f01c3d2c281ac384b241cf0bf9299658426cacf75877297a8 --- 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-38b53e6 [2022-11-26 00:21:48,650 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:21:48,652 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:21:48,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:21:48,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:21:48,694 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:21:48,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:21:48,698 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:21:48,700 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:21:48,701 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:21:48,703 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:21:48,704 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:21:48,704 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:21:48,706 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:21:48,707 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:21:48,708 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:21:48,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:21:48,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:21:48,712 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:21:48,714 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:21:48,716 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:21:48,721 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:21:48,722 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:21:48,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:21:48,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:21:48,738 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:21:48,738 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:21:48,739 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:21:48,740 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:21:48,741 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:21:48,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:21:48,747 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:21:48,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:21:48,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:21:48,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:21:48,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:21:48,752 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:21:48,753 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:21:48,753 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:21:48,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:21:48,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:21:48,757 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b53e6c-7b60-44e9-bee5-13dda111636a/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-26 00:21:48,797 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:21:48,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:21:48,798 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:21:48,798 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:21:48,799 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:21:48,800 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:21:48,800 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:21:48,800 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:21:48,800 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:21:48,801 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:21:48,802 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:21:48,802 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:21:48,802 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:21:48,803 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:21:48,803 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:21:48,803 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:21:48,803 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:21:48,804 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:21:48,806 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:21:48,806 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:21:48,806 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:21:48,806 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:21:48,807 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:21:48,807 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:21:48,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:21:48,807 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:21:48,808 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:21:48,808 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:21:48,808 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:21:48,809 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:21:48,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:21:48,809 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:21:48,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:21:48,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:21:48,810 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:21:48,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:21:48,811 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:21:48,811 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:21:48,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:21:48,811 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:21:48,811 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:21:48,812 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_c5b53e6c-7b60-44e9-bee5-13dda111636a/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b53e6c-7b60-44e9-bee5-13dda111636a/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d66bda3f947b403f01c3d2c281ac384b241cf0bf9299658426cacf75877297a8 [2022-11-26 00:21:49,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:21:49,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:21:49,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:21:49,156 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:21:49,157 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:21:49,158 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b53e6c-7b60-44e9-bee5-13dda111636a/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-1.c [2022-11-26 00:21:52,223 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:21:52,642 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:21:52,643 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b53e6c-7b60-44e9-bee5-13dda111636a/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-1.c [2022-11-26 00:21:52,671 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b53e6c-7b60-44e9-bee5-13dda111636a/bin/utaipan-ByfvJB40ur/data/1b0d56435/76af9bf4f3314a29b11efabe075cd2cc/FLAGe5a3281de [2022-11-26 00:21:52,694 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b53e6c-7b60-44e9-bee5-13dda111636a/bin/utaipan-ByfvJB40ur/data/1b0d56435/76af9bf4f3314a29b11efabe075cd2cc [2022-11-26 00:21:52,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:21:52,700 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:21:52,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:21:52,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:21:52,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:21:52,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:21:52" (1/1) ... [2022-11-26 00:21:52,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5edd0132 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:21:52, skipping insertion in model container [2022-11-26 00:21:52,710 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:21:52" (1/1) ... [2022-11-26 00:21:52,719 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:21:52,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:21:52,983 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_c5b53e6c-7b60-44e9-bee5-13dda111636a/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-1.c[1974,1987] [2022-11-26 00:21:53,080 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-11-26 00:21:53,082 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-11-26 00:21:53,089 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-11-26 00:21:53,110 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-26 00:21:53,115 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-26 00:21:53,116 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-26 00:21:53,117 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-26 00:21:53,129 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-11-26 00:21:53,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:21:53,566 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:21:53,580 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_c5b53e6c-7b60-44e9-bee5-13dda111636a/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-1.c[1974,1987] [2022-11-26 00:21:53,595 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-11-26 00:21:53,596 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-11-26 00:21:53,597 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-11-26 00:21:53,598 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-26 00:21:53,599 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-26 00:21:53,599 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-26 00:21:53,599 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-26 00:21:53,604 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-11-26 00:21:53,819 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:21:53,841 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:21:53,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:21:53 WrapperNode [2022-11-26 00:21:53,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:21:53,844 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:21:53,845 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:21:53,845 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:21:53,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:21:53" (1/1) ... [2022-11-26 00:21:53,922 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:21:53" (1/1) ... [2022-11-26 00:21:54,206 INFO L138 Inliner]: procedures = 61, calls = 3183, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 6054 [2022-11-26 00:21:54,207 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:21:54,208 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:21:54,208 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:21:54,208 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:21:54,218 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:21:53" (1/1) ... [2022-11-26 00:21:54,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:21:53" (1/1) ... [2022-11-26 00:21:54,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:21:53" (1/1) ... [2022-11-26 00:21:54,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:21:53" (1/1) ... [2022-11-26 00:21:54,423 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:21:53" (1/1) ... [2022-11-26 00:21:54,437 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:21:53" (1/1) ... [2022-11-26 00:21:54,450 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:21:53" (1/1) ... [2022-11-26 00:21:54,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:21:53" (1/1) ... [2022-11-26 00:21:54,494 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:21:54,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:21:54,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:21:54,495 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:21:54,496 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:21:53" (1/1) ... [2022-11-26 00:21:54,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:21:54,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b53e6c-7b60-44e9-bee5-13dda111636a/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:21:54,525 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b53e6c-7b60-44e9-bee5-13dda111636a/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:21:54,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b53e6c-7b60-44e9-bee5-13dda111636a/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:21:54,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:21:54,573 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-11-26 00:21:54,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-11-26 00:21:54,573 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-26 00:21:54,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-26 00:21:54,574 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-11-26 00:21:54,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-11-26 00:21:54,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:21:54,575 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-26 00:21:54,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-26 00:21:54,576 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-26 00:21:54,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-26 00:21:54,576 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-11-26 00:21:54,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-11-26 00:21:54,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:21:54,577 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-26 00:21:54,577 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-26 00:21:54,577 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-11-26 00:21:54,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-11-26 00:21:54,578 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-11-26 00:21:54,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-11-26 00:21:54,578 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-26 00:21:54,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-26 00:21:54,578 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-26 00:21:54,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-26 00:21:54,579 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-11-26 00:21:54,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-11-26 00:21:54,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:21:54,579 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-11-26 00:21:54,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-11-26 00:21:54,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:21:54,580 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-26 00:21:54,581 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-26 00:21:54,582 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-11-26 00:21:54,582 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-11-26 00:21:54,582 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-11-26 00:21:54,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-11-26 00:21:54,582 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-11-26 00:21:54,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-11-26 00:21:54,583 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-26 00:21:54,583 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-26 00:21:54,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:21:54,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:21:54,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:21:54,584 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-11-26 00:21:54,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-11-26 00:21:54,584 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-26 00:21:54,584 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-26 00:21:54,584 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-11-26 00:21:54,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-11-26 00:21:54,585 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-11-26 00:21:54,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-11-26 00:21:55,232 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:21:55,239 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:22:07,047 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:22:07,463 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:22:07,464 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-26 00:22:07,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:22:07 BoogieIcfgContainer [2022-11-26 00:22:07,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:22:07,472 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:22:07,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:22:07,476 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:22:07,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:21:52" (1/3) ... [2022-11-26 00:22:07,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38464503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:22:07, skipping insertion in model container [2022-11-26 00:22:07,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:21:53" (2/3) ... [2022-11-26 00:22:07,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38464503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:22:07, skipping insertion in model container [2022-11-26 00:22:07,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:22:07" (3/3) ... [2022-11-26 00:22:07,480 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_aso.2.M4-1.c [2022-11-26 00:22:07,500 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:22:07,501 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:22:07,598 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:22:07,605 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;@6fee254d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:22:07,606 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:22:07,619 INFO L276 IsEmpty]: Start isEmpty. Operand has 2325 states, 1333 states have (on average 1.1987996999249813) internal successors, (1598), 1337 states have internal predecessors, (1598), 968 states have call successors, (968), 22 states have call predecessors, (968), 22 states have return successors, (968), 966 states have call predecessors, (968), 968 states have call successors, (968) [2022-11-26 00:22:07,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 913 [2022-11-26 00:22:07,699 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:22:07,701 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-26 00:22:07,702 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:22:07,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:22:07,709 INFO L85 PathProgramCache]: Analyzing trace with hash 522340555, now seen corresponding path program 1 times [2022-11-26 00:22:07,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:22:07,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365248410] [2022-11-26 00:22:07,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:22:07,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms