./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M4.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_00bd67fc-c3f9-4250-911c-63af5bfddfd9/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00bd67fc-c3f9-4250-911c-63af5bfddfd9/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_00bd67fc-c3f9-4250-911c-63af5bfddfd9/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00bd67fc-c3f9-4250-911c-63af5bfddfd9/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00bd67fc-c3f9-4250-911c-63af5bfddfd9/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_00bd67fc-c3f9-4250-911c-63af5bfddfd9/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 057eb0aaa167d4a282deedb942f5c49b15cbcbec76af173c98e3ad8ae158d7c4 --- 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 11:03:13,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:03:13,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:03:13,144 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:03:13,144 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:03:13,145 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:03:13,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:03:13,147 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:03:13,148 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:03:13,148 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:03:13,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:03:13,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:03:13,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:03:13,151 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:03:13,151 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:03:13,152 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:03:13,152 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:03:13,153 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:03:13,154 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:03:13,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:03:13,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:03:13,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:03:13,158 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:03:13,158 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:03:13,160 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:03:13,161 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:03:13,161 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:03:13,162 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:03:13,162 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:03:13,162 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:03:13,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:03:13,163 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:03:13,164 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:03:13,164 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:03:13,165 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:03:13,165 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:03:13,165 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:03:13,166 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:03:13,166 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:03:13,166 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:03:13,167 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:03:13,167 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00bd67fc-c3f9-4250-911c-63af5bfddfd9/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 11:03:13,183 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:03:13,183 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:03:13,183 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:03:13,183 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:03:13,184 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:03:13,184 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:03:13,184 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:03:13,184 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:03:13,184 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:03:13,185 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:03:13,185 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:03:13,185 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:03:13,185 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:03:13,185 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:03:13,185 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:03:13,185 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:03:13,185 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:03:13,185 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:03:13,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:03:13,186 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:03:13,186 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:03:13,186 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:03:13,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:03:13,187 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:03:13,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:03:13,187 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:03:13,187 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:03:13,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:03:13,187 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:03:13,187 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:03:13,187 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:03:13,188 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:03:13,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:03:13,188 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:03:13,188 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:03:13,188 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:03:13,188 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:03:13,188 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:03:13,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:03:13,188 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:03:13,189 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:03:13,189 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_00bd67fc-c3f9-4250-911c-63af5bfddfd9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00bd67fc-c3f9-4250-911c-63af5bfddfd9/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 057eb0aaa167d4a282deedb942f5c49b15cbcbec76af173c98e3ad8ae158d7c4 [2022-12-14 11:03:13,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:03:13,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:03:13,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:03:13,410 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:03:13,410 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:03:13,411 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00bd67fc-c3f9-4250-911c-63af5bfddfd9/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M4.c [2022-12-14 11:03:16,072 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:03:16,319 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:03:16,320 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00bd67fc-c3f9-4250-911c-63af5bfddfd9/sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M4.c [2022-12-14 11:03:16,335 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00bd67fc-c3f9-4250-911c-63af5bfddfd9/bin/utaipan-gh47qXpMRh/data/c00e7a5aa/d6b8b1b2c1594edc9f92bd6f8400bf91/FLAGd68592b42 [2022-12-14 11:03:16,345 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00bd67fc-c3f9-4250-911c-63af5bfddfd9/bin/utaipan-gh47qXpMRh/data/c00e7a5aa/d6b8b1b2c1594edc9f92bd6f8400bf91 [2022-12-14 11:03:16,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:03:16,348 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:03:16,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:03:16,349 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:03:16,351 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:03:16,352 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:03:16" (1/1) ... [2022-12-14 11:03:16,352 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b268030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:03:16, skipping insertion in model container [2022-12-14 11:03:16,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:03:16" (1/1) ... [2022-12-14 11:03:16,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:03:16,428 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:03:16,560 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_00bd67fc-c3f9-4250-911c-63af5bfddfd9/sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M4.c[1806,1819] [2022-12-14 11:03:16,629 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 11:03:16,630 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 11:03:16,631 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-14 11:03:16,634 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 11:03:16,635 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 11:03:16,635 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 11:03:16,635 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 11:03:16,644 WARN L623 FunctionHandler]: Unknown extern function __startrek_get_pi_lock [2022-12-14 11:03:16,645 WARN L623 FunctionHandler]: Unknown extern function __startrek_release_pi_lock [2022-12-14 11:03:16,645 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-14 11:03:16,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:03:16,921 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:03:16,930 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_00bd67fc-c3f9-4250-911c-63af5bfddfd9/sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M4.c[1806,1819] [2022-12-14 11:03:16,941 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 11:03:16,942 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 11:03:16,942 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-14 11:03:16,943 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 11:03:16,943 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 11:03:16,944 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 11:03:16,944 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 11:03:16,946 WARN L623 FunctionHandler]: Unknown extern function __startrek_get_pi_lock [2022-12-14 11:03:16,946 WARN L623 FunctionHandler]: Unknown extern function __startrek_release_pi_lock [2022-12-14 11:03:16,947 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-14 11:03:17,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:03:17,112 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:03:17,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:03:17 WrapperNode [2022-12-14 11:03:17,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:03:17,113 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:03:17,113 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:03:17,113 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:03:17,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:03:17" (1/1) ... [2022-12-14 11:03:17,188 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:03:17" (1/1) ... [2022-12-14 11:03:17,435 INFO L138 Inliner]: procedures = 70, calls = 5236, calls flagged for inlining = 26, calls inlined = 26, statements flattened = 9829 [2022-12-14 11:03:17,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:03:17,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:03:17,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:03:17,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:03:17,443 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:03:17" (1/1) ... [2022-12-14 11:03:17,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:03:17" (1/1) ... [2022-12-14 11:03:17,476 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:03:17" (1/1) ... [2022-12-14 11:03:17,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:03:17" (1/1) ... [2022-12-14 11:03:17,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:03:17" (1/1) ... [2022-12-14 11:03:17,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:03:17" (1/1) ... [2022-12-14 11:03:17,657 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:03:17" (1/1) ... [2022-12-14 11:03:17,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:03:17" (1/1) ... [2022-12-14 11:03:17,704 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:03:17,705 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:03:17,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:03:17,705 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:03:17,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:03:17" (1/1) ... [2022-12-14 11:03:17,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:03:17,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00bd67fc-c3f9-4250-911c-63af5bfddfd9/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:03:17,729 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00bd67fc-c3f9-4250-911c-63af5bfddfd9/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:03:17,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00bd67fc-c3f9-4250-911c-63af5bfddfd9/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:03:17,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:03:17,760 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-12-14 11:03:17,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-12-14 11:03:17,760 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-12-14 11:03:17,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-12-14 11:03:17,760 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-12-14 11:03:17,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-12-14 11:03:17,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 11:03:17,760 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-12-14 11:03:17,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-12-14 11:03:17,761 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-12-14 11:03:17,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-12-14 11:03:17,761 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-12-14 11:03:17,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-12-14 11:03:17,761 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-12-14 11:03:17,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-12-14 11:03:17,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 11:03:17,761 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-12-14 11:03:17,761 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-12-14 11:03:17,761 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-12-14 11:03:17,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-12-14 11:03:17,762 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-12-14 11:03:17,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-12-14 11:03:17,762 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-12-14 11:03:17,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-12-14 11:03:17,762 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-14 11:03:17,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-14 11:03:17,762 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-14 11:03:17,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-14 11:03:17,762 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-12-14 11:03:17,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-12-14 11:03:17,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 11:03:17,775 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-12-14 11:03:17,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-12-14 11:03:17,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 11:03:17,775 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-12-14 11:03:17,775 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-12-14 11:03:17,775 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-12-14 11:03:17,775 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-12-14 11:03:17,775 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-12-14 11:03:17,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-12-14 11:03:17,776 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-12-14 11:03:17,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-12-14 11:03:17,776 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 11:03:17,776 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 11:03:17,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:03:17,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:03:17,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:03:17,777 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-12-14 11:03:17,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-12-14 11:03:17,777 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-12-14 11:03:17,777 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-12-14 11:03:17,777 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-12-14 11:03:17,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-12-14 11:03:17,777 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-12-14 11:03:17,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-12-14 11:03:18,231 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:03:18,233 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:03:30,732 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:03:31,027 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:03:31,027 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 11:03:31,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:03:31 BoogieIcfgContainer [2022-12-14 11:03:31,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:03:31,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:03:31,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:03:31,037 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:03:31,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:03:16" (1/3) ... [2022-12-14 11:03:31,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4952fa67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:03:31, skipping insertion in model container [2022-12-14 11:03:31,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:03:17" (2/3) ... [2022-12-14 11:03:31,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4952fa67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:03:31, skipping insertion in model container [2022-12-14 11:03:31,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:03:31" (3/3) ... [2022-12-14 11:03:31,039 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_aso.4.M4.c [2022-12-14 11:03:31,077 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:03:31,077 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 11:03:31,153 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:03:31,158 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;@67619809, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:03:31,158 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 11:03:31,168 INFO L276 IsEmpty]: Start isEmpty. Operand has 3525 states, 1993 states have (on average 1.1655795283492223) internal successors, (2323), 1997 states have internal predecessors, (2323), 1506 states have call successors, (1506), 24 states have call predecessors, (1506), 24 states have return successors, (1506), 1504 states have call predecessors, (1506), 1506 states have call successors, (1506) [2022-12-14 11:03:31,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 954 [2022-12-14 11:03:31,221 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:03:31,222 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 11:03:31,222 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:03:31,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:03:31,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1183032951, now seen corresponding path program 1 times [2022-12-14 11:03:31,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:03:31,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739041575] [2022-12-14 11:03:31,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:03:31,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms