./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.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_0ad94957-b526-4f43-aaf3-59a5cc44114a/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad94957-b526-4f43-aaf3-59a5cc44114a/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_0ad94957-b526-4f43-aaf3-59a5cc44114a/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad94957-b526-4f43-aaf3-59a5cc44114a/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad94957-b526-4f43-aaf3-59a5cc44114a/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_0ad94957-b526-4f43-aaf3-59a5cc44114a/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 20976b2d8a648a632a55cb7b6a072d8c835d658a3592a366af91723667ead694 --- 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 11:24:53,712 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:24:53,714 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:24:53,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:24:53,727 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:24:53,728 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:24:53,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:24:53,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:24:53,730 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:24:53,731 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:24:53,732 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:24:53,732 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:24:53,733 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:24:53,733 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:24:53,734 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:24:53,735 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:24:53,735 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:24:53,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:24:53,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:24:53,738 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:24:53,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:24:53,740 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:24:53,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:24:53,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:24:53,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:24:53,743 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:24:53,744 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:24:53,744 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:24:53,744 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:24:53,745 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:24:53,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:24:53,746 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:24:53,746 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:24:53,747 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:24:53,747 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:24:53,747 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:24:53,748 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:24:53,748 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:24:53,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:24:53,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:24:53,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:24:53,750 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad94957-b526-4f43-aaf3-59a5cc44114a/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 11:24:53,764 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:24:53,764 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:24:53,769 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:24:53,770 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:24:53,770 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:24:53,770 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:24:53,771 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:24:53,771 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:24:53,771 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:24:53,771 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:24:53,771 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:24:53,771 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:24:53,772 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:24:53,772 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:24:53,772 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:24:53,772 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:24:53,772 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:24:53,773 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:24:53,773 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:24:53,773 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:24:53,774 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:24:53,774 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:24:53,774 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:24:53,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:24:53,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:24:53,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:24:53,775 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:24:53,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:24:53,775 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:24:53,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:24:53,775 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:24:53,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:24:53,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:24:53,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:24:53,776 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:24:53,776 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:24:53,777 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:24:53,777 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:24:53,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:24:53,777 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:24:53,777 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:24:53,777 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_0ad94957-b526-4f43-aaf3-59a5cc44114a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad94957-b526-4f43-aaf3-59a5cc44114a/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20976b2d8a648a632a55cb7b6a072d8c835d658a3592a366af91723667ead694 [2022-12-14 11:24:53,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:24:53,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:24:53,960 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:24:53,961 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:24:53,962 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:24:53,963 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad94957-b526-4f43-aaf3-59a5cc44114a/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c [2022-12-14 11:24:56,448 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:24:56,712 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:24:56,712 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad94957-b526-4f43-aaf3-59a5cc44114a/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c [2022-12-14 11:24:56,728 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad94957-b526-4f43-aaf3-59a5cc44114a/bin/utaipan-gh47qXpMRh/data/4669a4596/aaea3c7f01a448959d5227dd619f983b/FLAG8685e58a3 [2022-12-14 11:24:57,022 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad94957-b526-4f43-aaf3-59a5cc44114a/bin/utaipan-gh47qXpMRh/data/4669a4596/aaea3c7f01a448959d5227dd619f983b [2022-12-14 11:24:57,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:24:57,026 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:24:57,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:24:57,027 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:24:57,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:24:57,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:24:57" (1/1) ... [2022-12-14 11:24:57,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73869478 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:57, skipping insertion in model container [2022-12-14 11:24:57,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:24:57" (1/1) ... [2022-12-14 11:24:57,040 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:24:57,107 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:24:57,272 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_0ad94957-b526-4f43-aaf3-59a5cc44114a/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c[1807,1820] [2022-12-14 11:24:57,340 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 11:24:57,341 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 11:24:57,342 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-14 11:24:57,345 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 11:24:57,346 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 11:24:57,346 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 11:24:57,347 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 11:24:57,355 WARN L623 FunctionHandler]: Unknown extern function __startrek_get_pi_lock [2022-12-14 11:24:57,356 WARN L623 FunctionHandler]: Unknown extern function __startrek_release_pi_lock [2022-12-14 11:24:57,357 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-14 11:24:57,657 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:24:57,670 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:24:57,682 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_0ad94957-b526-4f43-aaf3-59a5cc44114a/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c[1807,1820] [2022-12-14 11:24:57,697 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 11:24:57,698 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 11:24:57,699 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-14 11:24:57,700 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 11:24:57,700 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 11:24:57,700 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 11:24:57,701 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 11:24:57,702 WARN L623 FunctionHandler]: Unknown extern function __startrek_get_pi_lock [2022-12-14 11:24:57,703 WARN L623 FunctionHandler]: Unknown extern function __startrek_release_pi_lock [2022-12-14 11:24:57,703 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-14 11:24:57,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:24:57,901 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:24:57,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:57 WrapperNode [2022-12-14 11:24:57,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:24:57,902 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:24:57,902 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:24:57,902 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:24:57,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:57" (1/1) ... [2022-12-14 11:24:57,967 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:57" (1/1) ... [2022-12-14 11:24:58,133 INFO L138 Inliner]: procedures = 70, calls = 5237, calls flagged for inlining = 25, calls inlined = 25, statements flattened = 9803 [2022-12-14 11:24:58,134 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:24:58,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:24:58,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:24:58,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:24:58,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:57" (1/1) ... [2022-12-14 11:24:58,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:57" (1/1) ... [2022-12-14 11:24:58,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:57" (1/1) ... [2022-12-14 11:24:58,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:57" (1/1) ... [2022-12-14 11:24:58,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:57" (1/1) ... [2022-12-14 11:24:58,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:57" (1/1) ... [2022-12-14 11:24:58,376 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:57" (1/1) ... [2022-12-14 11:24:58,389 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:57" (1/1) ... [2022-12-14 11:24:58,420 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:24:58,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:24:58,421 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:24:58,421 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:24:58,422 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:57" (1/1) ... [2022-12-14 11:24:58,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:24:58,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad94957-b526-4f43-aaf3-59a5cc44114a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:24:58,444 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad94957-b526-4f43-aaf3-59a5cc44114a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:24:58,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad94957-b526-4f43-aaf3-59a5cc44114a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:24:58,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:24:58,471 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_trans [2022-12-14 11:24:58,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_trans [2022-12-14 11:24:58,471 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-12-14 11:24:58,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-12-14 11:24:58,471 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-12-14 11:24:58,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-12-14 11:24:58,471 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-12-14 11:24:58,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-12-14 11:24:58,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 11:24:58,472 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-12-14 11:24:58,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-12-14 11:24:58,472 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-12-14 11:24:58,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-12-14 11:24:58,472 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-12-14 11:24:58,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-12-14 11:24:58,472 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-12-14 11:24:58,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-12-14 11:24:58,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 11:24:58,473 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-12-14 11:24:58,473 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-12-14 11:24:58,473 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-12-14 11:24:58,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-12-14 11:24:58,473 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-12-14 11:24:58,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-12-14 11:24:58,473 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-12-14 11:24:58,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-12-14 11:24:58,473 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-14 11:24:58,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-14 11:24:58,473 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-14 11:24:58,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-14 11:24:58,474 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-12-14 11:24:58,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-12-14 11:24:58,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 11:24:58,474 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-12-14 11:24:58,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-12-14 11:24:58,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 11:24:58,474 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-12-14 11:24:58,474 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-12-14 11:24:58,474 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-12-14 11:24:58,474 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-12-14 11:24:58,475 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-12-14 11:24:58,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-12-14 11:24:58,475 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-12-14 11:24:58,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-12-14 11:24:58,475 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 11:24:58,475 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 11:24:58,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:24:58,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:24:58,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:24:58,475 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-12-14 11:24:58,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-12-14 11:24:58,475 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-12-14 11:24:58,475 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-12-14 11:24:58,475 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-12-14 11:24:58,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-12-14 11:24:58,476 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-12-14 11:24:58,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-12-14 11:24:59,013 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:24:59,015 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:25:10,563 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:25:10,826 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:25:10,826 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 11:25:10,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:25:10 BoogieIcfgContainer [2022-12-14 11:25:10,832 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:25:10,834 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:25:10,834 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:25:10,837 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:25:10,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:24:57" (1/3) ... [2022-12-14 11:25:10,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c23c34f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:25:10, skipping insertion in model container [2022-12-14 11:25:10,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:57" (2/3) ... [2022-12-14 11:25:10,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c23c34f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:25:10, skipping insertion in model container [2022-12-14 11:25:10,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:25:10" (3/3) ... [2022-12-14 11:25:10,840 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_aso.2.M4-2.c [2022-12-14 11:25:10,854 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:25:10,854 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 11:25:10,932 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:25:10,936 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;@645d242f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:25:10,937 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 11:25:10,947 INFO L276 IsEmpty]: Start isEmpty. Operand has 3528 states, 1993 states have (on average 1.1655795283492223) internal successors, (2323), 1998 states have internal predecessors, (2323), 1508 states have call successors, (1508), 25 states have call predecessors, (1508), 25 states have return successors, (1508), 1506 states have call predecessors, (1508), 1508 states have call successors, (1508) [2022-12-14 11:25:10,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 954 [2022-12-14 11:25:10,987 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:25:10,988 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, 1, 1] [2022-12-14 11:25:10,988 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:25:10,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:25:10,993 INFO L85 PathProgramCache]: Analyzing trace with hash 508150289, now seen corresponding path program 1 times [2022-12-14 11:25:11,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:25:11,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569482232] [2022-12-14 11:25:11,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:25:11,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms