./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-1.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_536ab14f-cdc8-4769-98dc-d59053507a5c/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536ab14f-cdc8-4769-98dc-d59053507a5c/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_536ab14f-cdc8-4769-98dc-d59053507a5c/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536ab14f-cdc8-4769-98dc-d59053507a5c/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536ab14f-cdc8-4769-98dc-d59053507a5c/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_536ab14f-cdc8-4769-98dc-d59053507a5c/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 2d62eb188ec8009366dfdca221ff91e65711c28198c7f8ea6438b1bcf863cd3f --- 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 04:55:54,760 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 04:55:54,762 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 04:55:54,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 04:55:54,776 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 04:55:54,777 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 04:55:54,778 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 04:55:54,779 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 04:55:54,780 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 04:55:54,781 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 04:55:54,781 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 04:55:54,782 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 04:55:54,783 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 04:55:54,783 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 04:55:54,784 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 04:55:54,785 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 04:55:54,785 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 04:55:54,786 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 04:55:54,787 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 04:55:54,788 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 04:55:54,789 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 04:55:54,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 04:55:54,793 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 04:55:54,794 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 04:55:54,797 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 04:55:54,798 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 04:55:54,798 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 04:55:54,799 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 04:55:54,799 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 04:55:54,800 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 04:55:54,800 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 04:55:54,801 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 04:55:54,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 04:55:54,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 04:55:54,803 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 04:55:54,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 04:55:54,804 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 04:55:54,805 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 04:55:54,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 04:55:54,805 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 04:55:54,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 04:55:54,807 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536ab14f-cdc8-4769-98dc-d59053507a5c/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 04:55:54,826 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 04:55:54,826 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 04:55:54,826 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 04:55:54,827 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 04:55:54,827 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 04:55:54,827 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 04:55:54,828 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 04:55:54,828 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 04:55:54,828 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 04:55:54,828 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 04:55:54,828 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 04:55:54,828 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 04:55:54,829 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 04:55:54,829 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 04:55:54,829 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 04:55:54,829 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 04:55:54,829 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 04:55:54,829 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 04:55:54,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 04:55:54,830 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 04:55:54,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 04:55:54,831 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 04:55:54,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 04:55:54,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 04:55:54,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 04:55:54,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 04:55:54,831 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 04:55:54,832 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 04:55:54,832 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 04:55:54,832 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 04:55:54,832 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 04:55:54,832 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 04:55:54,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 04:55:54,833 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 04:55:54,833 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 04:55:54,833 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 04:55:54,833 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 04:55:54,833 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 04:55:54,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 04:55:54,834 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 04:55:54,834 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 04:55:54,834 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_536ab14f-cdc8-4769-98dc-d59053507a5c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536ab14f-cdc8-4769-98dc-d59053507a5c/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d62eb188ec8009366dfdca221ff91e65711c28198c7f8ea6438b1bcf863cd3f [2022-12-14 04:55:55,022 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 04:55:55,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 04:55:55,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 04:55:55,044 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 04:55:55,044 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 04:55:55,045 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536ab14f-cdc8-4769-98dc-d59053507a5c/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-1.c [2022-12-14 04:55:57,547 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 04:55:57,922 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 04:55:57,922 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536ab14f-cdc8-4769-98dc-d59053507a5c/sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-1.c [2022-12-14 04:55:57,962 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536ab14f-cdc8-4769-98dc-d59053507a5c/bin/utaipan-gh47qXpMRh/data/71fc6d067/9c026eb605d14d84acfa7eae8de418c9/FLAG330679177 [2022-12-14 04:55:58,120 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536ab14f-cdc8-4769-98dc-d59053507a5c/bin/utaipan-gh47qXpMRh/data/71fc6d067/9c026eb605d14d84acfa7eae8de418c9 [2022-12-14 04:55:58,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 04:55:58,122 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 04:55:58,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 04:55:58,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 04:55:58,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 04:55:58,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:55:58" (1/1) ... [2022-12-14 04:55:58,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46da78d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:55:58, skipping insertion in model container [2022-12-14 04:55:58,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:55:58" (1/1) ... [2022-12-14 04:55:58,133 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 04:55:58,236 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 04:55:58,413 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_536ab14f-cdc8-4769-98dc-d59053507a5c/sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-1.c[2836,2849] [2022-12-14 04:55:58,503 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 04:55:58,503 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 04:55:58,505 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-14 04:55:58,508 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 04:55:58,508 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 04:55:58,508 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 04:55:58,509 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 04:55:58,521 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-14 04:55:59,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 04:55:59,027 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 04:55:59,037 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_536ab14f-cdc8-4769-98dc-d59053507a5c/sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-1.c[2836,2849] [2022-12-14 04:55:59,047 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 04:55:59,047 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 04:55:59,048 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-14 04:55:59,048 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 04:55:59,048 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 04:55:59,049 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 04:55:59,049 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 04:55:59,051 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-14 04:55:59,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 04:55:59,575 INFO L208 MainTranslator]: Completed translation [2022-12-14 04:55:59,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:55:59 WrapperNode [2022-12-14 04:55:59,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 04:55:59,576 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 04:55:59,576 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 04:55:59,576 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 04:55:59,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:55:59" (1/1) ... [2022-12-14 04:55:59,749 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:55:59" (1/1) ... [2022-12-14 04:56:00,409 INFO L138 Inliner]: procedures = 63, calls = 19673, calls flagged for inlining = 22, calls inlined = 22, statements flattened = 42427 [2022-12-14 04:56:00,410 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 04:56:00,411 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 04:56:00,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 04:56:00,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 04:56:00,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:55:59" (1/1) ... [2022-12-14 04:56:00,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:55:59" (1/1) ... [2022-12-14 04:56:00,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:55:59" (1/1) ... [2022-12-14 04:56:00,607 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:55:59" (1/1) ... [2022-12-14 04:56:01,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:55:59" (1/1) ... [2022-12-14 04:56:01,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:55:59" (1/1) ... [2022-12-14 04:56:01,154 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:55:59" (1/1) ... [2022-12-14 04:56:01,189 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:55:59" (1/1) ... [2022-12-14 04:56:01,304 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 04:56:01,305 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 04:56:01,305 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 04:56:01,305 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 04:56:01,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:55:59" (1/1) ... [2022-12-14 04:56:01,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 04:56:01,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536ab14f-cdc8-4769-98dc-d59053507a5c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 04:56:01,330 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536ab14f-cdc8-4769-98dc-d59053507a5c/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 04:56:01,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536ab14f-cdc8-4769-98dc-d59053507a5c/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 04:56:01,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 04:56:01,359 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-12-14 04:56:01,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-12-14 04:56:01,359 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-12-14 04:56:01,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-12-14 04:56:01,359 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-12-14 04:56:01,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-12-14 04:56:01,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 04:56:01,360 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-12-14 04:56:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-12-14 04:56:01,360 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-12-14 04:56:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-12-14 04:56:01,360 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-12-14 04:56:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-12-14 04:56:01,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 04:56:01,360 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-12-14 04:56:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-12-14 04:56:01,360 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-12-14 04:56:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-12-14 04:56:01,360 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-12-14 04:56:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-12-14 04:56:01,361 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-14 04:56:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-14 04:56:01,361 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-14 04:56:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-14 04:56:01,361 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-12-14 04:56:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-12-14 04:56:01,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 04:56:01,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 04:56:01,361 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-12-14 04:56:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-12-14 04:56:01,361 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-12-14 04:56:01,362 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-12-14 04:56:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-12-14 04:56:01,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-12-14 04:56:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-12-14 04:56:01,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-12-14 04:56:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 04:56:01,362 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 04:56:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 04:56:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 04:56:01,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 04:56:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-12-14 04:56:01,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-12-14 04:56:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-12-14 04:56:01,363 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-12-14 04:56:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-12-14 04:56:01,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-12-14 04:56:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-12-14 04:56:01,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-12-14 04:56:02,608 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 04:56:02,610 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 04:57:00,973 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 04:57:01,927 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 04:57:01,927 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 04:57:01,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:57:01 BoogieIcfgContainer [2022-12-14 04:57:01,937 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 04:57:01,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 04:57:01,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 04:57:01,941 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 04:57:01,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:55:58" (1/3) ... [2022-12-14 04:57:01,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e896b4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:57:01, skipping insertion in model container [2022-12-14 04:57:01,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:55:59" (2/3) ... [2022-12-14 04:57:01,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e896b4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:57:01, skipping insertion in model container [2022-12-14 04:57:01,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:57:01" (3/3) ... [2022-12-14 04:57:01,943 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_aso.2.M4-1.c [2022-12-14 04:57:01,957 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 04:57:01,957 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 04:57:02,187 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 04:57:02,192 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;@7dd6290d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 04:57:02,193 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 04:57:02,219 INFO L276 IsEmpty]: Start isEmpty. Operand has 12804 states, 8264 states have (on average 1.306026137463698) internal successors, (10793), 8376 states have internal predecessors, (10793), 4517 states have call successors, (4517), 21 states have call predecessors, (4517), 21 states have return successors, (4517), 4515 states have call predecessors, (4517), 4517 states have call successors, (4517) [2022-12-14 04:57:02,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4794 [2022-12-14 04:57:02,654 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:57:02,656 INFO L195 NwaCegarLoop]: trace histogram [551, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 04:57:02,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:57:02,664 INFO L85 PathProgramCache]: Analyzing trace with hash -644012975, now seen corresponding path program 1 times [2022-12-14 04:57:02,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:57:02,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130311743] [2022-12-14 04:57:02,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:57:02,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms