./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pc_sfifo_1.cil-1+token_ring.05.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f90df9b-23e0-4a41-92c0-272122381af0/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f90df9b-23e0-4a41-92c0-272122381af0/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f90df9b-23e0-4a41-92c0-272122381af0/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f90df9b-23e0-4a41-92c0-272122381af0/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/pc_sfifo_1.cil-1+token_ring.05.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f90df9b-23e0-4a41-92c0-272122381af0/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f90df9b-23e0-4a41-92c0-272122381af0/bin/utaipan-EQgc7hIp5V --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 9d4bc18aefc7d5cf8a6801b407c7ea85d9f7dfe6af9e54139938035f3045aafe --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:43:35,243 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:43:35,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:43:35,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:43:35,279 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:43:35,281 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:43:35,283 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:43:35,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:43:35,288 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:43:35,290 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:43:35,291 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:43:35,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:43:35,293 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:43:35,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:43:35,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:43:35,299 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:43:35,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:43:35,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:43:35,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:43:35,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:43:35,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:43:35,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:43:35,313 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:43:35,314 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:43:35,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:43:35,319 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:43:35,320 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:43:35,321 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:43:35,322 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:43:35,323 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:43:35,324 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:43:35,325 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:43:35,326 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:43:35,327 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:43:35,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:43:35,329 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:43:35,330 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:43:35,330 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:43:35,331 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:43:35,332 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:43:35,333 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:43:35,334 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f90df9b-23e0-4a41-92c0-272122381af0/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 03:43:35,361 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:43:35,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:43:35,362 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:43:35,362 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:43:35,363 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:43:35,363 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:43:35,364 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:43:35,364 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:43:35,364 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:43:35,365 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:43:35,365 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:43:35,365 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:43:35,365 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:43:35,365 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:43:35,366 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:43:35,366 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:43:35,366 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:43:35,366 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:43:35,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:43:35,368 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:43:35,368 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:43:35,368 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:43:35,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:43:35,369 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:43:35,369 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:43:35,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:43:35,369 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:43:35,370 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:43:35,370 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:43:35,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:43:35,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:43:35,371 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:43:35,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:43:35,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:43:35,371 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:43:35,372 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:43:35,372 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:43:35,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:43:35,372 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:43:35,372 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:43:35,373 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:43:35,373 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_4f90df9b-23e0-4a41-92c0-272122381af0/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f90df9b-23e0-4a41-92c0-272122381af0/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d4bc18aefc7d5cf8a6801b407c7ea85d9f7dfe6af9e54139938035f3045aafe [2021-11-23 03:43:35,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:43:35,711 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:43:35,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:43:35,715 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:43:35,716 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:43:35,717 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f90df9b-23e0-4a41-92c0-272122381af0/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/combinations/pc_sfifo_1.cil-1+token_ring.05.cil-1.c [2021-11-23 03:43:35,800 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f90df9b-23e0-4a41-92c0-272122381af0/bin/utaipan-EQgc7hIp5V/data/76cce450f/b1fe89a67dc74203999c1ce48964daba/FLAG05eb0ef32 [2021-11-23 03:43:36,394 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:43:36,398 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f90df9b-23e0-4a41-92c0-272122381af0/sv-benchmarks/c/combinations/pc_sfifo_1.cil-1+token_ring.05.cil-1.c [2021-11-23 03:43:36,424 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f90df9b-23e0-4a41-92c0-272122381af0/bin/utaipan-EQgc7hIp5V/data/76cce450f/b1fe89a67dc74203999c1ce48964daba/FLAG05eb0ef32 [2021-11-23 03:43:36,662 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f90df9b-23e0-4a41-92c0-272122381af0/bin/utaipan-EQgc7hIp5V/data/76cce450f/b1fe89a67dc74203999c1ce48964daba [2021-11-23 03:43:36,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:43:36,666 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:43:36,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:43:36,668 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:43:36,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:43:36,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:43:36" (1/1) ... [2021-11-23 03:43:36,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ad75a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:36, skipping insertion in model container [2021-11-23 03:43:36,674 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:43:36" (1/1) ... [2021-11-23 03:43:36,681 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:43:36,722 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:43:36,931 WARN L230 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_4f90df9b-23e0-4a41-92c0-272122381af0/sv-benchmarks/c/combinations/pc_sfifo_1.cil-1+token_ring.05.cil-1.c[913,926] [2021-11-23 03:43:36,975 WARN L230 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_4f90df9b-23e0-4a41-92c0-272122381af0/sv-benchmarks/c/combinations/pc_sfifo_1.cil-1+token_ring.05.cil-1.c[5994,6007] [2021-11-23 03:43:37,079 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:43:37,089 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:43:37,101 WARN L230 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_4f90df9b-23e0-4a41-92c0-272122381af0/sv-benchmarks/c/combinations/pc_sfifo_1.cil-1+token_ring.05.cil-1.c[913,926] [2021-11-23 03:43:37,119 WARN L230 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_4f90df9b-23e0-4a41-92c0-272122381af0/sv-benchmarks/c/combinations/pc_sfifo_1.cil-1+token_ring.05.cil-1.c[5994,6007] [2021-11-23 03:43:37,191 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:43:37,218 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:43:37,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:37 WrapperNode [2021-11-23 03:43:37,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:43:37,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:43:37,220 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:43:37,220 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:43:37,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:37" (1/1) ... [2021-11-23 03:43:37,257 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:37" (1/1) ... [2021-11-23 03:43:37,340 INFO L137 Inliner]: procedures = 58, calls = 64, calls flagged for inlining = 33, calls inlined = 33, statements flattened = 650 [2021-11-23 03:43:37,340 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:43:37,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:43:37,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:43:37,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:43:37,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:37" (1/1) ... [2021-11-23 03:43:37,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:37" (1/1) ... [2021-11-23 03:43:37,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:37" (1/1) ... [2021-11-23 03:43:37,379 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:37" (1/1) ... [2021-11-23 03:43:37,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:37" (1/1) ... [2021-11-23 03:43:37,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:37" (1/1) ... [2021-11-23 03:43:37,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:37" (1/1) ... [2021-11-23 03:43:37,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:43:37,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:43:37,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:43:37,444 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:43:37,445 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:37" (1/1) ... [2021-11-23 03:43:37,459 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:43:37,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f90df9b-23e0-4a41-92c0-272122381af0/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:43:37,486 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f90df9b-23e0-4a41-92c0-272122381af0/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:43:37,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f90df9b-23e0-4a41-92c0-272122381af0/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:43:37,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:43:37,521 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-11-23 03:43:37,522 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-11-23 03:43:37,522 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2021-11-23 03:43:37,522 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2021-11-23 03:43:37,522 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2021-11-23 03:43:37,522 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2021-11-23 03:43:37,522 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2021-11-23 03:43:37,523 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2021-11-23 03:43:37,523 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2021-11-23 03:43:37,523 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2021-11-23 03:43:37,523 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2021-11-23 03:43:37,523 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2021-11-23 03:43:37,524 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2021-11-23 03:43:37,524 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2021-11-23 03:43:37,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:43:37,524 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2021-11-23 03:43:37,524 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2021-11-23 03:43:37,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:43:37,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:43:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2021-11-23 03:43:37,525 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2021-11-23 03:43:37,642 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:43:37,644 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:43:38,326 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:43:38,669 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:43:38,670 INFO L301 CfgBuilder]: Removed 12 assume(true) statements. [2021-11-23 03:43:38,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:43:38 BoogieIcfgContainer [2021-11-23 03:43:38,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:43:38,680 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:43:38,680 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:43:38,684 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:43:38,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:43:36" (1/3) ... [2021-11-23 03:43:38,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1016fe4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:43:38, skipping insertion in model container [2021-11-23 03:43:38,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:37" (2/3) ... [2021-11-23 03:43:38,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1016fe4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:43:38, skipping insertion in model container [2021-11-23 03:43:38,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:43:38" (3/3) ... [2021-11-23 03:43:38,688 INFO L111 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-1+token_ring.05.cil-1.c [2021-11-23 03:43:38,694 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:43:38,694 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-23 03:43:38,761 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:43:38,772 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 03:43:38,772 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-23 03:43:38,813 INFO L276 IsEmpty]: Start isEmpty. Operand has 163 states, 125 states have (on average 1.544) internal successors, (193), 131 states have internal predecessors, (193), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2021-11-23 03:43:38,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 03:43:38,821 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:43:38,822 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:43:38,822 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:43:38,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:43:38,829 INFO L85 PathProgramCache]: Analyzing trace with hash 588036765, now seen corresponding path program 1 times [2021-11-23 03:43:38,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:43:38,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636534944] [2021-11-23 03:43:38,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:43:38,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:43:39,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 03:43:39,005 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 03:43:39,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 03:43:39,112 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-23 03:43:39,115 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 03:43:39,117 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location error1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-23 03:43:39,119 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-23 03:43:39,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:43:39,125 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-23 03:43:39,148 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 03:43:39,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:43:39 BoogieIcfgContainer [2021-11-23 03:43:39,244 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 03:43:39,244 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 03:43:39,244 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 03:43:39,249 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 03:43:39,250 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:43:38" (3/4) ... [2021-11-23 03:43:39,252 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 03:43:39,343 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f90df9b-23e0-4a41-92c0-272122381af0/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 03:43:39,343 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 03:43:39,345 INFO L158 Benchmark]: Toolchain (without parser) took 2678.25ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 60.7MB in the beginning and 82.3MB in the end (delta: -21.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:43:39,345 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 96.5MB. Free memory was 65.8MB in the beginning and 65.7MB in the end (delta: 25.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:43:39,346 INFO L158 Benchmark]: CACSL2BoogieTranslator took 551.04ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 60.6MB in the beginning and 84.7MB in the end (delta: -24.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 03:43:39,346 INFO L158 Benchmark]: Boogie Procedure Inliner took 135.65ms. Allocated memory is still 117.4MB. Free memory was 84.7MB in the beginning and 81.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 03:43:39,347 INFO L158 Benchmark]: Boogie Preprocessor took 86.11ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 78.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 03:43:39,347 INFO L158 Benchmark]: RCFGBuilder took 1232.68ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 65.1MB in the end (delta: 13.3MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2021-11-23 03:43:39,348 INFO L158 Benchmark]: TraceAbstraction took 564.25ms. Allocated memory is still 117.4MB. Free memory was 65.1MB in the beginning and 87.3MB in the end (delta: -22.2MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. [2021-11-23 03:43:39,348 INFO L158 Benchmark]: Witness Printer took 99.22ms. Allocated memory is still 117.4MB. Free memory was 87.3MB in the beginning and 82.3MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 03:43:39,351 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 96.5MB. Free memory was 65.8MB in the beginning and 65.7MB in the end (delta: 25.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 551.04ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 60.6MB in the beginning and 84.7MB in the end (delta: -24.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 135.65ms. Allocated memory is still 117.4MB. Free memory was 84.7MB in the beginning and 81.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.11ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 78.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1232.68ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 65.1MB in the end (delta: 13.3MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 564.25ms. Allocated memory is still 117.4MB. Free memory was 65.1MB in the beginning and 87.3MB in the end (delta: -22.2MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. * Witness Printer took 99.22ms. Allocated memory is still 117.4MB. Free memory was 87.3MB in the beginning and 82.3MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 27]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L32] int q_buf_0 ; [L33] int q_free ; [L34] int q_read_ev ; [L35] int q_write_ev ; [L36] int p_num_write ; [L37] int p_last_write ; [L38] int p_dw_st ; [L39] int p_dw_pc ; [L40] int p_dw_i ; [L41] int c_num_read ; [L42] int c_last_read ; [L43] int c_dr_st ; [L44] int c_dr_pc ; [L45] int c_dr_i ; [L152] static int a_t ; [L394] int m_pc = 0; [L395] int t1_pc = 0; [L396] int t2_pc = 0; [L397] int t3_pc = 0; [L398] int t4_pc = 0; [L399] int t5_pc = 0; [L400] int m_st ; [L401] int t1_st ; [L402] int t2_st ; [L403] int t3_st ; [L404] int t4_st ; [L405] int t5_st ; [L406] int m_i ; [L407] int t1_i ; [L408] int t2_i ; [L409] int t3_i ; [L410] int t4_i ; [L411] int t5_i ; [L412] int M_E = 2; [L413] int T1_E = 2; [L414] int T2_E = 2; [L415] int T3_E = 2; [L416] int T4_E = 2; [L417] int T5_E = 2; [L418] int E_M = 2; [L419] int E_1 = 2; [L420] int E_2 = 2; [L421] int E_3 = 2; [L422] int E_4 = 2; [L423] int E_5 = 2; [L431] int token ; [L433] int local ; [L1356] COND TRUE __VERIFIER_nondet_int() [L1357] CALL main1() [L368] int __retres1 ; [L372] CALL init_model1() [L354] q_free = 1 [L355] q_write_ev = 2 [L356] q_read_ev = q_write_ev [L357] p_num_write = 0 [L358] p_dw_pc = 0 [L359] p_dw_i = 1 [L360] c_num_read = 0 [L361] c_dr_pc = 0 [L362] c_dr_i = 1 [L372] RET init_model1() [L373] CALL start_simulation1() [L322] int kernel_st ; [L323] int tmp ; [L327] kernel_st = 0 [L328] CALL init_threads1() [L214] COND TRUE (int )p_dw_i == 1 [L215] p_dw_st = 0 [L219] COND TRUE (int )c_dr_i == 1 [L220] c_dr_st = 0 [L328] RET init_threads1() [L331] COND TRUE 1 [L334] kernel_st = 1 [L335] CALL eval1() [L249] int tmp ; [L250] int tmp___0 ; [L251] int tmp___1 ; VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_M=2, local=0, M_E=2, m_i=0, m_pc=0, m_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, T1_E=2, t1_i=0, t1_pc=0, t1_st=0, T2_E=2, t2_i=0, t2_pc=0, t2_st=0, T3_E=2, t3_i=0, t3_pc=0, t3_st=0, T4_E=2, t4_i=0, t4_pc=0, t4_st=0, T5_E=2, t5_i=0, t5_pc=0, t5_st=0, token=0] [L255] COND TRUE 1 VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_M=2, local=0, M_E=2, m_i=0, m_pc=0, m_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, T1_E=2, t1_i=0, t1_pc=0, t1_st=0, T2_E=2, t2_i=0, t2_pc=0, t2_st=0, T3_E=2, t3_i=0, t3_pc=0, t3_st=0, T4_E=2, t4_i=0, t4_pc=0, t4_st=0, T5_E=2, t5_i=0, t5_pc=0, t5_st=0, token=0] [L258] CALL, EXPR exists_runnable_thread1() VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_M=2, local=0, M_E=2, m_i=0, m_pc=0, m_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, T1_E=2, t1_i=0, t1_pc=0, t1_st=0, T2_E=2, t2_i=0, t2_pc=0, t2_st=0, T3_E=2, t3_i=0, t3_pc=0, t3_st=0, T4_E=2, t4_i=0, t4_pc=0, t4_st=0, T5_E=2, t5_i=0, t5_pc=0, t5_st=0, token=0] [L229] int __retres1 ; [L232] COND TRUE (int )p_dw_st == 0 [L233] __retres1 = 1 [L245] return (__retres1); [L258] RET, EXPR exists_runnable_thread1() VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_M=2, exists_runnable_thread1()=1, local=0, M_E=2, m_i=0, m_pc=0, m_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, T1_E=2, t1_i=0, t1_pc=0, t1_st=0, T2_E=2, t2_i=0, t2_pc=0, t2_st=0, T3_E=2, t3_i=0, t3_pc=0, t3_st=0, T4_E=2, t4_i=0, t4_pc=0, t4_st=0, T5_E=2, t5_i=0, t5_pc=0, t5_st=0, token=0] [L258] tmp___1 = exists_runnable_thread1() [L260] COND TRUE \read(tmp___1) VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_M=2, local=0, M_E=2, m_i=0, m_pc=0, m_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, T1_E=2, t1_i=0, t1_pc=0, t1_st=0, T2_E=2, t2_i=0, t2_pc=0, t2_st=0, T3_E=2, t3_i=0, t3_pc=0, t3_st=0, T4_E=2, t4_i=0, t4_pc=0, t4_st=0, T5_E=2, t5_i=0, t5_pc=0, t5_st=0, tmp___1=1, token=0] [L265] COND TRUE (int )p_dw_st == 0 [L267] tmp = __VERIFIER_nondet_int() [L269] COND FALSE !(\read(tmp)) VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_M=2, local=0, M_E=2, m_i=0, m_pc=0, m_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, T1_E=2, t1_i=0, t1_pc=0, t1_st=0, T2_E=2, t2_i=0, t2_pc=0, t2_st=0, T3_E=2, t3_i=0, t3_pc=0, t3_st=0, T4_E=2, t4_i=0, t4_pc=0, t4_st=0, T5_E=2, t5_i=0, t5_pc=0, t5_st=0, tmp=0, tmp___1=1, token=0] [L275] CALL error1() VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_M=2, local=0, M_E=2, m_i=0, m_pc=0, m_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, T1_E=2, t1_i=0, t1_pc=0, t1_st=0, T2_E=2, t2_i=0, t2_pc=0, t2_st=0, T3_E=2, t3_i=0, t3_pc=0, t3_st=0, T4_E=2, t4_i=0, t4_pc=0, t4_st=0, T5_E=2, t5_i=0, t5_pc=0, t5_st=0, token=0] [L27] reach_error() VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_M=2, local=0, M_E=2, m_i=0, m_pc=0, m_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, T1_E=2, t1_i=0, t1_pc=0, t1_st=0, T2_E=2, t2_i=0, t2_pc=0, t2_st=0, T3_E=2, t3_i=0, t3_pc=0, t3_st=0, T4_E=2, t4_i=0, t4_pc=0, t4_st=0, T5_E=2, t5_i=0, t5_pc=0, t5_st=0, token=0] - UnprovableResult [Line: 390]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 163 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=163occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-23 03:43:39,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f90df9b-23e0-4a41-92c0-272122381af0/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE