./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.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_2749f859-6ea1-4f32-935d-0dfa17f1641d/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2749f859-6ea1-4f32-935d-0dfa17f1641d/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_2749f859-6ea1-4f32-935d-0dfa17f1641d/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2749f859-6ea1-4f32-935d-0dfa17f1641d/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2749f859-6ea1-4f32-935d-0dfa17f1641d/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_2749f859-6ea1-4f32-935d-0dfa17f1641d/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 cdfe8cdf5ef6acb015ae980f200d66be6855e21e0a93c803bebabec43209e961 --- 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 05:13:45,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:13:45,792 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:13:45,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:13:45,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:13:45,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:13:45,816 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:13:45,817 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:13:45,818 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:13:45,819 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:13:45,819 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:13:45,820 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:13:45,820 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:13:45,821 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:13:45,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:13:45,822 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:13:45,823 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:13:45,824 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:13:45,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:13:45,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:13:45,826 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:13:45,827 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:13:45,828 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:13:45,828 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:13:45,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:13:45,831 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:13:45,831 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:13:45,831 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:13:45,832 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:13:45,832 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:13:45,832 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:13:45,833 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:13:45,834 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:13:45,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:13:45,835 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:13:45,835 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:13:45,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:13:45,836 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:13:45,836 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:13:45,837 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:13:45,837 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:13:45,838 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2749f859-6ea1-4f32-935d-0dfa17f1641d/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 05:13:45,863 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:13:45,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:13:45,863 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:13:45,863 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:13:45,864 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:13:45,864 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:13:45,864 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:13:45,864 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:13:45,864 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:13:45,865 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 05:13:45,865 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:13:45,865 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:13:45,865 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 05:13:45,865 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 05:13:45,865 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:13:45,865 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 05:13:45,866 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 05:13:45,866 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 05:13:45,866 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:13:45,866 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 05:13:45,867 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:13:45,867 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 05:13:45,867 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:13:45,867 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 05:13:45,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:13:45,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 05:13:45,867 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 05:13:45,868 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 05:13:45,868 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:13:45,868 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 05:13:45,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:13:45,868 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:13:45,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:13:45,869 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:13:45,869 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 05:13:45,869 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:13:45,869 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 05:13:45,869 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 05:13:45,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 05:13:45,869 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 05:13:45,870 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:13:45,870 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_2749f859-6ea1-4f32-935d-0dfa17f1641d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2749f859-6ea1-4f32-935d-0dfa17f1641d/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdfe8cdf5ef6acb015ae980f200d66be6855e21e0a93c803bebabec43209e961 [2022-12-14 05:13:46,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:13:46,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:13:46,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:13:46,057 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:13:46,058 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:13:46,059 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2749f859-6ea1-4f32-935d-0dfa17f1641d/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2022-12-14 05:13:48,646 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:13:48,966 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:13:48,966 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2749f859-6ea1-4f32-935d-0dfa17f1641d/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2022-12-14 05:13:48,983 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2749f859-6ea1-4f32-935d-0dfa17f1641d/bin/utaipan-gh47qXpMRh/data/13dd5cf36/7263d4faace74143b4dda219215d982e/FLAG5c9ee4d56 [2022-12-14 05:13:49,221 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2749f859-6ea1-4f32-935d-0dfa17f1641d/bin/utaipan-gh47qXpMRh/data/13dd5cf36/7263d4faace74143b4dda219215d982e [2022-12-14 05:13:49,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:13:49,224 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:13:49,225 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:13:49,225 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:13:49,228 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:13:49,229 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:13:49" (1/1) ... [2022-12-14 05:13:49,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fc6f251 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:13:49, skipping insertion in model container [2022-12-14 05:13:49,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:13:49" (1/1) ... [2022-12-14 05:13:49,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:13:49,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:13:49,442 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_2749f859-6ea1-4f32-935d-0dfa17f1641d/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c[1871,1884] [2022-12-14 05:13:49,841 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:13:49,859 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:13:49,868 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_2749f859-6ea1-4f32-935d-0dfa17f1641d/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c[1871,1884] [2022-12-14 05:13:50,003 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:13:50,026 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:13:50,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:13:50 WrapperNode [2022-12-14 05:13:50,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:13:50,028 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:13:50,028 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:13:50,028 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:13:50,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:13:50" (1/1) ... [2022-12-14 05:13:50,087 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:13:50" (1/1) ... [2022-12-14 05:13:50,228 INFO L138 Inliner]: procedures = 99, calls = 2724, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8254 [2022-12-14 05:13:50,228 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:13:50,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:13:50,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:13:50,229 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:13:50,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:13:50" (1/1) ... [2022-12-14 05:13:50,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:13:50" (1/1) ... [2022-12-14 05:13:50,284 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:13:50" (1/1) ... [2022-12-14 05:13:50,284 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:13:50" (1/1) ... [2022-12-14 05:13:50,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:13:50" (1/1) ... [2022-12-14 05:13:50,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:13:50" (1/1) ... [2022-12-14 05:13:50,473 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:13:50" (1/1) ... [2022-12-14 05:13:50,504 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:13:50" (1/1) ... [2022-12-14 05:13:50,525 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:13:50,525 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:13:50,525 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:13:50,525 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:13:50,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:13:50" (1/1) ... [2022-12-14 05:13:50,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:13:50,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2749f859-6ea1-4f32-935d-0dfa17f1641d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:13:50,548 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2749f859-6ea1-4f32-935d-0dfa17f1641d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:13:50,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2749f859-6ea1-4f32-935d-0dfa17f1641d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:13:50,574 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-12-14 05:13:50,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-12-14 05:13:50,575 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-12-14 05:13:50,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-12-14 05:13:50,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 05:13:50,575 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-12-14 05:13:50,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-12-14 05:13:50,575 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-12-14 05:13:50,575 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-12-14 05:13:50,575 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-12-14 05:13:50,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-12-14 05:13:50,575 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-12-14 05:13:50,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-12-14 05:13:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-12-14 05:13:50,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-12-14 05:13:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-12-14 05:13:50,576 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-12-14 05:13:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-12-14 05:13:50,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-12-14 05:13:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-12-14 05:13:50,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-12-14 05:13:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 05:13:50,577 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-12-14 05:13:50,577 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-12-14 05:13:50,577 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-12-14 05:13:50,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-12-14 05:13:50,577 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-12-14 05:13:50,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-12-14 05:13:50,577 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-12-14 05:13:50,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-12-14 05:13:50,577 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-12-14 05:13:50,577 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-12-14 05:13:50,578 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-12-14 05:13:50,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-12-14 05:13:50,578 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-12-14 05:13:50,578 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-12-14 05:13:50,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:13:50,578 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-12-14 05:13:50,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-12-14 05:13:50,578 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-12-14 05:13:50,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-12-14 05:13:50,578 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-12-14 05:13:50,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-12-14 05:13:50,579 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-12-14 05:13:50,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-12-14 05:13:50,579 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-12-14 05:13:50,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-12-14 05:13:50,579 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-12-14 05:13:50,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-12-14 05:13:50,579 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-12-14 05:13:50,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-12-14 05:13:50,579 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-12-14 05:13:50,580 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-12-14 05:13:50,580 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-12-14 05:13:50,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-12-14 05:13:50,580 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-12-14 05:13:50,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-12-14 05:13:50,580 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-12-14 05:13:50,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-12-14 05:13:50,580 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-12-14 05:13:50,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-12-14 05:13:50,580 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-12-14 05:13:50,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-12-14 05:13:50,581 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-12-14 05:13:50,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-12-14 05:13:50,581 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-12-14 05:13:50,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-12-14 05:13:50,581 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-12-14 05:13:50,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-12-14 05:13:50,581 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-12-14 05:13:50,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-12-14 05:13:50,581 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-12-14 05:13:50,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-12-14 05:13:50,582 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-12-14 05:13:50,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-12-14 05:13:50,582 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-12-14 05:13:50,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-12-14 05:13:50,582 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-12-14 05:13:50,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-12-14 05:13:50,582 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-12-14 05:13:50,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-12-14 05:13:50,582 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-12-14 05:13:50,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-12-14 05:13:50,582 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-12-14 05:13:50,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-12-14 05:13:50,583 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-12-14 05:13:50,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-12-14 05:13:50,583 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2022-12-14 05:13:50,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2022-12-14 05:13:50,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 05:13:50,583 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-12-14 05:13:50,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-12-14 05:13:50,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:13:50,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:13:50,966 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:13:50,968 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:14:03,645 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:14:09,299 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:14:09,299 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-14 05:14:09,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:14:09 BoogieIcfgContainer [2022-12-14 05:14:09,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:14:09,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:14:09,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:14:09,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:14:09,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:13:49" (1/3) ... [2022-12-14 05:14:09,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@249f312e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:14:09, skipping insertion in model container [2022-12-14 05:14:09,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:13:50" (2/3) ... [2022-12-14 05:14:09,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@249f312e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:14:09, skipping insertion in model container [2022-12-14 05:14:09,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:14:09" (3/3) ... [2022-12-14 05:14:09,309 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-1.c [2022-12-14 05:14:09,324 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:14:09,324 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 05:14:09,377 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:14:09,382 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;@6df68219, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:14:09,382 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 05:14:09,388 INFO L276 IsEmpty]: Start isEmpty. Operand has 952 states, 604 states have (on average 1.3857615894039734) internal successors, (837), 628 states have internal predecessors, (837), 302 states have call successors, (302), 44 states have call predecessors, (302), 44 states have return successors, (302), 292 states have call predecessors, (302), 302 states have call successors, (302) [2022-12-14 05:14:09,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 05:14:09,395 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:14:09,396 INFO L195 NwaCegarLoop]: trace histogram [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 05:14:09,396 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:14:09,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:14:09,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1039474661, now seen corresponding path program 1 times [2022-12-14 05:14:09,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:14:09,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234735767] [2022-12-14 05:14:09,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:14:09,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms