./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_3971c6dd-f803-4fce-af8e-3789ac54f891/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3971c6dd-f803-4fce-af8e-3789ac54f891/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3971c6dd-f803-4fce-af8e-3789ac54f891/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3971c6dd-f803-4fce-af8e-3789ac54f891/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3971c6dd-f803-4fce-af8e-3789ac54f891/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3971c6dd-f803-4fce-af8e-3789ac54f891/bin/utaipan-6cKwYrpEi9 --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 13ab100f899a57e5eca7e0526610c7b743f980d5e72b80cc180b4d884d35b9a9 --- 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-6b4ec56 [2022-11-20 20:33:10,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:33:10,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:33:10,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:33:10,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:33:10,194 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:33:10,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:33:10,200 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:33:10,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:33:10,210 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:33:10,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:33:10,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:33:10,215 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:33:10,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:33:10,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:33:10,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:33:10,226 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:33:10,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:33:10,229 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:33:10,237 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:33:10,239 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:33:10,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:33:10,244 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:33:10,245 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:33:10,257 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:33:10,258 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:33:10,258 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:33:10,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:33:10,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:33:10,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:33:10,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:33:10,269 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:33:10,271 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:33:10,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:33:10,274 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:33:10,275 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:33:10,276 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:33:10,276 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:33:10,277 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:33:10,278 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:33:10,279 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:33:10,280 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3971c6dd-f803-4fce-af8e-3789ac54f891/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-20 20:33:10,329 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:33:10,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:33:10,330 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:33:10,331 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:33:10,332 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:33:10,332 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:33:10,333 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:33:10,333 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:33:10,334 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:33:10,334 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 20:33:10,335 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:33:10,335 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:33:10,336 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 20:33:10,336 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 20:33:10,336 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:33:10,337 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 20:33:10,337 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 20:33:10,338 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 20:33:10,339 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:33:10,339 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 20:33:10,339 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 20:33:10,340 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 20:33:10,340 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:33:10,341 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:33:10,341 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:33:10,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:33:10,342 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 20:33:10,342 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:33:10,342 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:33:10,343 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:33:10,343 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:33:10,344 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:33:10,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:33:10,344 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:33:10,345 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 20:33:10,345 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:33:10,345 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:33:10,346 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 20:33:10,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 20:33:10,346 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:33:10,347 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:33:10,347 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_3971c6dd-f803-4fce-af8e-3789ac54f891/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3971c6dd-f803-4fce-af8e-3789ac54f891/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13ab100f899a57e5eca7e0526610c7b743f980d5e72b80cc180b4d884d35b9a9 [2022-11-20 20:33:10,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:33:10,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:33:10,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:33:10,765 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:33:10,766 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:33:10,767 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3971c6dd-f803-4fce-af8e-3789ac54f891/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-2.c [2022-11-20 20:33:14,263 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:33:14,999 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:33:15,000 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3971c6dd-f803-4fce-af8e-3789ac54f891/sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-2.c [2022-11-20 20:33:15,067 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3971c6dd-f803-4fce-af8e-3789ac54f891/bin/utaipan-6cKwYrpEi9/data/f5d64b089/dc25e36d4b154997be7fad324f8d50d1/FLAGd9c3bc7bd [2022-11-20 20:33:15,090 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3971c6dd-f803-4fce-af8e-3789ac54f891/bin/utaipan-6cKwYrpEi9/data/f5d64b089/dc25e36d4b154997be7fad324f8d50d1 [2022-11-20 20:33:15,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:33:15,095 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:33:15,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:33:15,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:33:15,104 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:33:15,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:33:15" (1/1) ... [2022-11-20 20:33:15,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b21af86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:15, skipping insertion in model container [2022-11-20 20:33:15,107 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:33:15" (1/1) ... [2022-11-20 20:33:15,116 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:33:15,444 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:33:15,680 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_3971c6dd-f803-4fce-af8e-3789ac54f891/sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-2.c[2320,2333] [2022-11-20 20:33:17,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:33:17,094 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 20:33:17,126 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_3971c6dd-f803-4fce-af8e-3789ac54f891/sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-2.c[2320,2333] [2022-11-20 20:33:18,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:33:18,358 INFO L208 MainTranslator]: Completed translation [2022-11-20 20:33:18,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:18 WrapperNode [2022-11-20 20:33:18,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 20:33:18,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 20:33:18,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 20:33:18,360 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 20:33:18,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:18" (1/1) ... [2022-11-20 20:33:18,983 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:18" (1/1) ... [2022-11-20 20:33:20,772 INFO L138 Inliner]: procedures = 72, calls = 21416, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 45878 [2022-11-20 20:33:20,787 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 20:33:20,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 20:33:20,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 20:33:20,788 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 20:33:20,813 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:18" (1/1) ... [2022-11-20 20:33:20,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:18" (1/1) ... [2022-11-20 20:33:21,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:18" (1/1) ... [2022-11-20 20:33:21,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:18" (1/1) ... [2022-11-20 20:33:22,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:18" (1/1) ... [2022-11-20 20:33:22,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:18" (1/1) ... [2022-11-20 20:33:22,724 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:18" (1/1) ... [2022-11-20 20:33:22,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:18" (1/1) ... [2022-11-20 20:33:23,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 20:33:23,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 20:33:23,071 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 20:33:23,071 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 20:33:23,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:18" (1/1) ... [2022-11-20 20:33:23,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:33:23,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3971c6dd-f803-4fce-af8e-3789ac54f891/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:33:23,112 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3971c6dd-f803-4fce-af8e-3789ac54f891/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 20:33:23,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3971c6dd-f803-4fce-af8e-3789ac54f891/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 20:33:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 20:33:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_trans [2022-11-20 20:33:23,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_trans [2022-11-20 20:33:23,168 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-11-20 20:33:23,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-11-20 20:33:23,168 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-20 20:33:23,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-20 20:33:23,168 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-11-20 20:33:23,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-11-20 20:33:23,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 20:33:23,169 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-20 20:33:23,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-20 20:33:23,169 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-20 20:33:23,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-20 20:33:23,170 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-11-20 20:33:23,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-11-20 20:33:23,170 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-11-20 20:33:23,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-11-20 20:33:23,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 20:33:23,171 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-20 20:33:23,171 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-20 20:33:23,172 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-11-20 20:33:23,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-11-20 20:33:23,173 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-11-20 20:33:23,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-11-20 20:33:23,174 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-11-20 20:33:23,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-11-20 20:33:23,174 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-20 20:33:23,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-20 20:33:23,175 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-20 20:33:23,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-20 20:33:23,175 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-11-20 20:33:23,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-11-20 20:33:23,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 20:33:23,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 20:33:23,176 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-20 20:33:23,176 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-20 20:33:23,176 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-11-20 20:33:23,176 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-11-20 20:33:23,177 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-11-20 20:33:23,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-11-20 20:33:23,177 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-11-20 20:33:23,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-11-20 20:33:23,178 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 20:33:23,178 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 20:33:23,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 20:33:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 20:33:23,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 20:33:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-11-20 20:33:23,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-11-20 20:33:23,181 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-20 20:33:23,181 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-20 20:33:23,181 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-11-20 20:33:23,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-11-20 20:33:23,181 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-11-20 20:33:23,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-11-20 20:33:25,750 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 20:33:25,753 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 20:46:49,237 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 20:46:54,667 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 20:46:54,669 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 20:46:54,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:46:54 BoogieIcfgContainer [2022-11-20 20:46:54,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 20:46:54,687 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 20:46:54,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 20:46:54,692 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 20:46:54,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:33:15" (1/3) ... [2022-11-20 20:46:54,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1890de03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:46:54, skipping insertion in model container [2022-11-20 20:46:54,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:18" (2/3) ... [2022-11-20 20:46:54,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1890de03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:46:54, skipping insertion in model container [2022-11-20 20:46:54,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:46:54" (3/3) ... [2022-11-20 20:46:54,697 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_aso.2.M4-2.c [2022-11-20 20:46:54,721 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 20:46:54,722 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 20:46:55,069 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 20:46:55,080 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;@4cd5e00, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 20:46:55,081 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 20:46:55,129 INFO L276 IsEmpty]: Start isEmpty. Operand has 13176 states, 8466 states have (on average 1.3016772974249942) internal successors, (11020), 8579 states have internal predecessors, (11020), 4684 states have call successors, (4684), 24 states have call predecessors, (4684), 24 states have return successors, (4684), 4682 states have call predecessors, (4684), 4684 states have call successors, (4684) [2022-11-20 20:46:56,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6506 [2022-11-20 20:46:56,101 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:46:56,105 INFO L195 NwaCegarLoop]: trace histogram [979, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:46:56,106 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:46:56,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:46:56,116 INFO L85 PathProgramCache]: Analyzing trace with hash -279809700, now seen corresponding path program 1 times [2022-11-20 20:46:56,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:46:56,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139620712] [2022-11-20 20:46:56,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:46:56,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms