./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M1-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 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_2046de97-d054-4948-abcd-73fb82c93bc0/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2046de97-d054-4948-abcd-73fb82c93bc0/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2046de97-d054-4948-abcd-73fb82c93bc0/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2046de97-d054-4948-abcd-73fb82c93bc0/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M1-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2046de97-d054-4948-abcd-73fb82c93bc0/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2046de97-d054-4948-abcd-73fb82c93bc0/bin/utaipan-Q6hlc19bkW --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 e618ac7f0d0fe46c0d3664cb960f19d8e01e350788161634161d0a95f103189d --- 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-4e7fbc6 [2022-11-23 13:44:51,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 13:44:51,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 13:44:51,320 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 13:44:51,321 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 13:44:51,325 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 13:44:51,328 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 13:44:51,331 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 13:44:51,333 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 13:44:51,339 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 13:44:51,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 13:44:51,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 13:44:51,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 13:44:51,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 13:44:51,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 13:44:51,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 13:44:51,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 13:44:51,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 13:44:51,356 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 13:44:51,362 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 13:44:51,364 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 13:44:51,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 13:44:51,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 13:44:51,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 13:44:51,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 13:44:51,380 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 13:44:51,380 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 13:44:51,382 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 13:44:51,382 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 13:44:51,383 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 13:44:51,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 13:44:51,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 13:44:51,387 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 13:44:51,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 13:44:51,390 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 13:44:51,391 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 13:44:51,392 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 13:44:51,392 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 13:44:51,393 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 13:44:51,394 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 13:44:51,394 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 13:44:51,395 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2046de97-d054-4948-abcd-73fb82c93bc0/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 13:44:51,438 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 13:44:51,439 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 13:44:51,440 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 13:44:51,440 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 13:44:51,441 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 13:44:51,441 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 13:44:51,441 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 13:44:51,442 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 13:44:51,442 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 13:44:51,442 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 13:44:51,443 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 13:44:51,443 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 13:44:51,444 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 13:44:51,444 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 13:44:51,444 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 13:44:51,444 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 13:44:51,445 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 13:44:51,445 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 13:44:51,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 13:44:51,446 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 13:44:51,446 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 13:44:51,446 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 13:44:51,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 13:44:51,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 13:44:51,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 13:44:51,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 13:44:51,447 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 13:44:51,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 13:44:51,448 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 13:44:51,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 13:44:51,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 13:44:51,449 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 13:44:51,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:44:51,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 13:44:51,450 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 13:44:51,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 13:44:51,450 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 13:44:51,450 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 13:44:51,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 13:44:51,451 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 13:44:51,451 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 13:44:51,451 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_2046de97-d054-4948-abcd-73fb82c93bc0/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2046de97-d054-4948-abcd-73fb82c93bc0/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e618ac7f0d0fe46c0d3664cb960f19d8e01e350788161634161d0a95f103189d [2022-11-23 13:44:51,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 13:44:51,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 13:44:51,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 13:44:51,793 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 13:44:51,794 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 13:44:51,795 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2046de97-d054-4948-abcd-73fb82c93bc0/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M1-2.c [2022-11-23 13:44:54,760 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 13:44:55,116 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 13:44:55,117 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2046de97-d054-4948-abcd-73fb82c93bc0/sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M1-2.c [2022-11-23 13:44:55,142 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2046de97-d054-4948-abcd-73fb82c93bc0/bin/utaipan-Q6hlc19bkW/data/595a9634f/239c9cfb240744eeaa9acde40e958288/FLAG9f195bf74 [2022-11-23 13:44:55,160 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2046de97-d054-4948-abcd-73fb82c93bc0/bin/utaipan-Q6hlc19bkW/data/595a9634f/239c9cfb240744eeaa9acde40e958288 [2022-11-23 13:44:55,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 13:44:55,171 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 13:44:55,173 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 13:44:55,173 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 13:44:55,177 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 13:44:55,178 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:44:55" (1/1) ... [2022-11-23 13:44:55,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b4b4bf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:55, skipping insertion in model container [2022-11-23 13:44:55,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:44:55" (1/1) ... [2022-11-23 13:44:55,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 13:44:55,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 13:44:55,517 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_2046de97-d054-4948-abcd-73fb82c93bc0/sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M1-2.c[2055,2068] [2022-11-23 13:44:55,974 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:44:55,998 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 13:44:56,031 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_2046de97-d054-4948-abcd-73fb82c93bc0/sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M1-2.c[2055,2068] [2022-11-23 13:44:56,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:44:56,325 INFO L208 MainTranslator]: Completed translation [2022-11-23 13:44:56,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:56 WrapperNode [2022-11-23 13:44:56,326 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 13:44:56,327 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 13:44:56,327 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 13:44:56,328 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 13:44:56,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:56" (1/1) ... [2022-11-23 13:44:56,384 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:56" (1/1) ... [2022-11-23 13:44:56,536 INFO L138 Inliner]: procedures = 62, calls = 2058, calls flagged for inlining = 21, calls inlined = 21, statements flattened = 4377 [2022-11-23 13:44:56,537 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 13:44:56,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 13:44:56,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 13:44:56,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 13:44:56,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:56" (1/1) ... [2022-11-23 13:44:56,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:56" (1/1) ... [2022-11-23 13:44:56,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:56" (1/1) ... [2022-11-23 13:44:56,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:56" (1/1) ... [2022-11-23 13:44:56,657 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:56" (1/1) ... [2022-11-23 13:44:56,670 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:56" (1/1) ... [2022-11-23 13:44:56,681 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:56" (1/1) ... [2022-11-23 13:44:56,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:56" (1/1) ... [2022-11-23 13:44:56,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 13:44:56,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 13:44:56,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 13:44:56,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 13:44:56,715 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:56" (1/1) ... [2022-11-23 13:44:56,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:44:56,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2046de97-d054-4948-abcd-73fb82c93bc0/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:44:56,759 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2046de97-d054-4948-abcd-73fb82c93bc0/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 13:44:56,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2046de97-d054-4948-abcd-73fb82c93bc0/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 13:44:56,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 13:44:56,803 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-11-23 13:44:56,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-11-23 13:44:56,804 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-23 13:44:56,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-23 13:44:56,804 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-11-23 13:44:56,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-11-23 13:44:56,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 13:44:56,804 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-23 13:44:56,805 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-23 13:44:56,805 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-23 13:44:56,805 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-23 13:44:56,805 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-11-23 13:44:56,805 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-11-23 13:44:56,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 13:44:56,806 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-23 13:44:56,806 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-23 13:44:56,806 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-11-23 13:44:56,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-11-23 13:44:56,806 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-11-23 13:44:56,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-11-23 13:44:56,807 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-23 13:44:56,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-23 13:44:56,808 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-23 13:44:56,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-23 13:44:56,809 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-11-23 13:44:56,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-11-23 13:44:56,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 13:44:56,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 13:44:56,810 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-23 13:44:56,811 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-23 13:44:56,811 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-11-23 13:44:56,812 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-11-23 13:44:56,812 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-11-23 13:44:56,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-11-23 13:44:56,812 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-11-23 13:44:56,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-11-23 13:44:56,813 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 13:44:56,813 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 13:44:56,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 13:44:56,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 13:44:56,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 13:44:56,814 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-11-23 13:44:56,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-11-23 13:44:56,814 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-23 13:44:56,814 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-23 13:44:56,815 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-11-23 13:44:56,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-11-23 13:44:56,815 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-11-23 13:44:56,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-11-23 13:44:57,292 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 13:44:57,295 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 13:45:05,279 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 13:45:05,572 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 13:45:05,573 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 13:45:05,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:45:05 BoogieIcfgContainer [2022-11-23 13:45:05,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 13:45:05,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 13:45:05,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 13:45:05,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 13:45:05,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:44:55" (1/3) ... [2022-11-23 13:45:05,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73abea9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:45:05, skipping insertion in model container [2022-11-23 13:45:05,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:56" (2/3) ... [2022-11-23 13:45:05,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73abea9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:45:05, skipping insertion in model container [2022-11-23 13:45:05,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:45:05" (3/3) ... [2022-11-23 13:45:05,591 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_aso.1.M1-2.c [2022-11-23 13:45:05,611 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 13:45:05,611 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 13:45:05,706 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 13:45:05,715 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;@3d5d7a8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 13:45:05,715 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 13:45:05,727 INFO L276 IsEmpty]: Start isEmpty. Operand has 1310 states, 806 states have (on average 1.2754342431761787) internal successors, (1028), 837 states have internal predecessors, (1028), 481 states have call successors, (481), 21 states have call predecessors, (481), 21 states have return successors, (481), 479 states have call predecessors, (481), 481 states have call successors, (481) [2022-11-23 13:45:05,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 756 [2022-11-23 13:45:05,808 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:45:05,810 INFO L195 NwaCegarLoop]: trace histogram [137, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:45:05,811 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:45:05,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:45:05,821 INFO L85 PathProgramCache]: Analyzing trace with hash 768287788, now seen corresponding path program 1 times [2022-11-23 13:45:05,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:45:05,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642714733] [2022-11-23 13:45:05,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:45:05,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms