./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-1.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_a377c500-872e-4ccf-a8ae-b2fb63b0e61f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a377c500-872e-4ccf-a8ae-b2fb63b0e61f/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_a377c500-872e-4ccf-a8ae-b2fb63b0e61f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a377c500-872e-4ccf-a8ae-b2fb63b0e61f/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a377c500-872e-4ccf-a8ae-b2fb63b0e61f/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_a377c500-872e-4ccf-a8ae-b2fb63b0e61f/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 2db6eb55010ab7d3a1a946055e6deb2837efdfd8388654051519bf5d1a66e523 --- 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 06:38:27,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:38:27,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:38:27,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:38:27,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:38:27,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:38:27,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:38:27,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:38:27,163 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:38:27,164 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:38:27,165 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:38:27,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:38:27,167 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:38:27,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:38:27,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:38:27,170 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:38:27,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:38:27,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:38:27,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:38:27,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:38:27,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:38:27,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:38:27,178 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:38:27,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:38:27,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:38:27,183 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:38:27,183 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:38:27,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:38:27,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:38:27,185 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:38:27,185 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:38:27,186 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:38:27,187 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:38:27,187 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:38:27,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:38:27,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:38:27,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:38:27,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:38:27,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:38:27,190 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:38:27,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:38:27,191 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a377c500-872e-4ccf-a8ae-b2fb63b0e61f/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 06:38:27,212 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:38:27,212 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:38:27,212 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:38:27,213 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:38:27,213 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:38:27,213 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:38:27,213 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:38:27,214 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:38:27,221 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:38:27,221 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:38:27,222 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:38:27,222 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:38:27,222 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:38:27,222 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:38:27,222 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:38:27,223 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:38:27,223 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:38:27,223 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:38:27,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:38:27,224 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:38:27,224 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:38:27,224 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:38:27,224 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:38:27,224 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:38:27,224 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:38:27,225 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:38:27,225 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:38:27,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:38:27,225 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:38:27,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:38:27,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:38:27,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:38:27,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:38:27,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:38:27,226 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:38:27,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:38:27,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:38:27,227 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:38:27,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:38:27,227 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:38:27,228 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:38:27,228 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_a377c500-872e-4ccf-a8ae-b2fb63b0e61f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a377c500-872e-4ccf-a8ae-b2fb63b0e61f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2db6eb55010ab7d3a1a946055e6deb2837efdfd8388654051519bf5d1a66e523 [2022-12-14 06:38:27,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:38:27,412 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:38:27,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:38:27,415 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:38:27,415 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:38:27,416 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a377c500-872e-4ccf-a8ae-b2fb63b0e61f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-1.c [2022-12-14 06:38:29,947 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:38:30,220 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:38:30,221 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a377c500-872e-4ccf-a8ae-b2fb63b0e61f/sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-1.c [2022-12-14 06:38:30,239 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a377c500-872e-4ccf-a8ae-b2fb63b0e61f/bin/utaipan-gh47qXpMRh/data/e930eedbf/6e3cc979925c4970885674990280483f/FLAG882ee555d [2022-12-14 06:38:30,506 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a377c500-872e-4ccf-a8ae-b2fb63b0e61f/bin/utaipan-gh47qXpMRh/data/e930eedbf/6e3cc979925c4970885674990280483f [2022-12-14 06:38:30,507 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:38:30,508 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:38:30,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:38:30,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:38:30,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:38:30,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:38:30" (1/1) ... [2022-12-14 06:38:30,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a7b89fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:30, skipping insertion in model container [2022-12-14 06:38:30,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:38:30" (1/1) ... [2022-12-14 06:38:30,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:38:30,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:38:30,735 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_a377c500-872e-4ccf-a8ae-b2fb63b0e61f/sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-1.c[1800,1813] [2022-12-14 06:38:30,800 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 06:38:30,801 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 06:38:30,803 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-14 06:38:30,808 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 06:38:30,809 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 06:38:30,809 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 06:38:30,810 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 06:38:30,823 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-14 06:38:31,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:38:31,056 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:38:31,070 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_a377c500-872e-4ccf-a8ae-b2fb63b0e61f/sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-1.c[1800,1813] [2022-12-14 06:38:31,087 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 06:38:31,087 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 06:38:31,088 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-14 06:38:31,090 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 06:38:31,090 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 06:38:31,091 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 06:38:31,091 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 06:38:31,095 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-14 06:38:31,242 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:38:31,257 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:38:31,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:31 WrapperNode [2022-12-14 06:38:31,257 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:38:31,258 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:38:31,258 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:38:31,259 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:38:31,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:31" (1/1) ... [2022-12-14 06:38:31,311 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:31" (1/1) ... [2022-12-14 06:38:31,440 INFO L138 Inliner]: procedures = 60, calls = 3129, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 5933 [2022-12-14 06:38:31,441 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:38:31,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:38:31,441 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:38:31,441 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:38:31,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:31" (1/1) ... [2022-12-14 06:38:31,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:31" (1/1) ... [2022-12-14 06:38:31,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:31" (1/1) ... [2022-12-14 06:38:31,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:31" (1/1) ... [2022-12-14 06:38:31,555 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:31" (1/1) ... [2022-12-14 06:38:31,563 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:31" (1/1) ... [2022-12-14 06:38:31,572 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:31" (1/1) ... [2022-12-14 06:38:31,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:31" (1/1) ... [2022-12-14 06:38:31,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:38:31,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:38:31,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:38:31,599 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:38:31,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:31" (1/1) ... [2022-12-14 06:38:31,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:38:31,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a377c500-872e-4ccf-a8ae-b2fb63b0e61f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:38:31,626 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a377c500-872e-4ccf-a8ae-b2fb63b0e61f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:38:31,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a377c500-872e-4ccf-a8ae-b2fb63b0e61f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:38:31,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:38:31,661 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-12-14 06:38:31,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-12-14 06:38:31,661 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-12-14 06:38:31,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-12-14 06:38:31,661 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-12-14 06:38:31,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-12-14 06:38:31,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 06:38:31,662 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-12-14 06:38:31,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-12-14 06:38:31,662 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-12-14 06:38:31,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-12-14 06:38:31,662 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-12-14 06:38:31,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-12-14 06:38:31,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 06:38:31,663 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-12-14 06:38:31,663 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-12-14 06:38:31,663 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-12-14 06:38:31,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-12-14 06:38:31,663 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-12-14 06:38:31,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-12-14 06:38:31,663 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-14 06:38:31,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-14 06:38:31,664 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-14 06:38:31,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-14 06:38:31,664 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-12-14 06:38:31,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-12-14 06:38:31,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 06:38:31,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 06:38:31,664 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-12-14 06:38:31,664 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-12-14 06:38:31,664 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-12-14 06:38:31,664 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-12-14 06:38:31,664 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-12-14 06:38:31,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-12-14 06:38:31,665 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-12-14 06:38:31,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-12-14 06:38:31,665 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 06:38:31,665 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 06:38:31,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:38:31,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:38:31,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:38:31,666 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-12-14 06:38:31,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-12-14 06:38:31,666 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-12-14 06:38:31,666 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-12-14 06:38:31,666 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-12-14 06:38:31,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-12-14 06:38:31,666 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-12-14 06:38:31,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-12-14 06:38:32,024 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:38:32,026 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:38:40,525 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:38:40,761 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:38:40,761 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 06:38:40,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:38:40 BoogieIcfgContainer [2022-12-14 06:38:40,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:38:40,767 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:38:40,767 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:38:40,770 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:38:40,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:38:30" (1/3) ... [2022-12-14 06:38:40,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@707f8a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:38:40, skipping insertion in model container [2022-12-14 06:38:40,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:31" (2/3) ... [2022-12-14 06:38:40,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@707f8a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:38:40, skipping insertion in model container [2022-12-14 06:38:40,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:38:40" (3/3) ... [2022-12-14 06:38:40,771 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_aso.1.M1-1.c [2022-12-14 06:38:40,785 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:38:40,785 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 06:38:40,851 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:38:40,855 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;@54a8b782, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:38:40,856 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 06:38:40,867 INFO L276 IsEmpty]: Start isEmpty. Operand has 2291 states, 1330 states have (on average 1.199248120300752) internal successors, (1595), 1334 states have internal predecessors, (1595), 938 states have call successors, (938), 21 states have call predecessors, (938), 21 states have return successors, (938), 936 states have call predecessors, (938), 938 states have call successors, (938) [2022-12-14 06:38:40,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 911 [2022-12-14 06:38:40,914 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:38:40,915 INFO L195 NwaCegarLoop]: trace histogram [209, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:38:40,915 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:38:40,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:38:40,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1898604167, now seen corresponding path program 1 times [2022-12-14 06:38:40,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:38:40,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435947301] [2022-12-14 06:38:40,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:38:40,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms