./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2deca7-2fec-4682-b7ac-4d60bebb0b69/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2deca7-2fec-4682-b7ac-4d60bebb0b69/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2deca7-2fec-4682-b7ac-4d60bebb0b69/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2deca7-2fec-4682-b7ac-4d60bebb0b69/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2deca7-2fec-4682-b7ac-4d60bebb0b69/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2deca7-2fec-4682-b7ac-4d60bebb0b69/bin/uautomizer-DrprNOufMa --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 36c3c3dc239d6629a8ba20aca175d79c45880ab21458cd8ebdaac3a8ef359066 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 00:16:26,301 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 00:16:26,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 00:16:26,324 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 00:16:26,325 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 00:16:26,326 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 00:16:26,327 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 00:16:26,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 00:16:26,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 00:16:26,331 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 00:16:26,332 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 00:16:26,333 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 00:16:26,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 00:16:26,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 00:16:26,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 00:16:26,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 00:16:26,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 00:16:26,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 00:16:26,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 00:16:26,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 00:16:26,342 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 00:16:26,343 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 00:16:26,344 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 00:16:26,345 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 00:16:26,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 00:16:26,348 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 00:16:26,348 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 00:16:26,349 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 00:16:26,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 00:16:26,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 00:16:26,350 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 00:16:26,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 00:16:26,351 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 00:16:26,352 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 00:16:26,353 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 00:16:26,353 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 00:16:26,354 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 00:16:26,354 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 00:16:26,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 00:16:26,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 00:16:26,355 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 00:16:26,356 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2deca7-2fec-4682-b7ac-4d60bebb0b69/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-07 00:16:26,373 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 00:16:26,373 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 00:16:26,373 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 00:16:26,373 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 00:16:26,374 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 00:16:26,374 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 00:16:26,374 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 00:16:26,375 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 00:16:26,375 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 00:16:26,375 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 00:16:26,375 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 00:16:26,375 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 00:16:26,375 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 00:16:26,375 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 00:16:26,375 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 00:16:26,375 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 00:16:26,376 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 00:16:26,376 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 00:16:26,376 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 00:16:26,376 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 00:16:26,376 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 00:16:26,376 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 00:16:26,376 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 00:16:26,376 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 00:16:26,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:16:26,377 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 00:16:26,377 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 00:16:26,377 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 00:16:26,377 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 00:16:26,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 00:16:26,377 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 00:16:26,377 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 00:16:26,377 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 00:16:26,377 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 00:16:26,378 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_2d2deca7-2fec-4682-b7ac-4d60bebb0b69/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2deca7-2fec-4682-b7ac-4d60bebb0b69/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36c3c3dc239d6629a8ba20aca175d79c45880ab21458cd8ebdaac3a8ef359066 [2021-12-07 00:16:26,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 00:16:26,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 00:16:26,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 00:16:26,575 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 00:16:26,575 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 00:16:26,576 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2deca7-2fec-4682-b7ac-4d60bebb0b69/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i [2021-12-07 00:16:26,628 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2deca7-2fec-4682-b7ac-4d60bebb0b69/bin/uautomizer-DrprNOufMa/data/1a29256b9/3924d52f0c3649ceb3bf5ba61a25e83c/FLAG961ab8903 [2021-12-07 00:16:27,038 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 00:16:27,039 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2deca7-2fec-4682-b7ac-4d60bebb0b69/sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i [2021-12-07 00:16:27,050 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2deca7-2fec-4682-b7ac-4d60bebb0b69/bin/uautomizer-DrprNOufMa/data/1a29256b9/3924d52f0c3649ceb3bf5ba61a25e83c/FLAG961ab8903 [2021-12-07 00:16:27,060 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2deca7-2fec-4682-b7ac-4d60bebb0b69/bin/uautomizer-DrprNOufMa/data/1a29256b9/3924d52f0c3649ceb3bf5ba61a25e83c [2021-12-07 00:16:27,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 00:16:27,063 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 00:16:27,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 00:16:27,064 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 00:16:27,067 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 00:16:27,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:16:27" (1/1) ... [2021-12-07 00:16:27,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a7f9d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:27, skipping insertion in model container [2021-12-07 00:16:27,069 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:16:27" (1/1) ... [2021-12-07 00:16:27,075 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 00:16:27,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 00:16:27,224 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-12-07 00:16:27,330 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_2d2deca7-2fec-4682-b7ac-4d60bebb0b69/sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i[30416,30429] [2021-12-07 00:16:27,337 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:16:27,346 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 00:16:27,355 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-12-07 00:16:27,371 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_2d2deca7-2fec-4682-b7ac-4d60bebb0b69/sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i[30416,30429] [2021-12-07 00:16:27,373 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:16:27,400 INFO L208 MainTranslator]: Completed translation [2021-12-07 00:16:27,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:27 WrapperNode [2021-12-07 00:16:27,401 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 00:16:27,402 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 00:16:27,402 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 00:16:27,402 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 00:16:27,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:27" (1/1) ... [2021-12-07 00:16:27,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:27" (1/1) ... [2021-12-07 00:16:27,433 INFO L137 Inliner]: procedures = 169, calls = 35, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2021-12-07 00:16:27,433 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 00:16:27,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 00:16:27,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 00:16:27,434 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 00:16:27,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:27" (1/1) ... [2021-12-07 00:16:27,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:27" (1/1) ... [2021-12-07 00:16:27,441 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:27" (1/1) ... [2021-12-07 00:16:27,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:27" (1/1) ... [2021-12-07 00:16:27,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:27" (1/1) ... [2021-12-07 00:16:27,448 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:27" (1/1) ... [2021-12-07 00:16:27,449 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:27" (1/1) ... [2021-12-07 00:16:27,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 00:16:27,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 00:16:27,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 00:16:27,452 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 00:16:27,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:27" (1/1) ... [2021-12-07 00:16:27,459 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:16:27,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2deca7-2fec-4682-b7ac-4d60bebb0b69/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:27,478 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2deca7-2fec-4682-b7ac-4d60bebb0b69/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:27,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2deca7-2fec-4682-b7ac-4d60bebb0b69/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 00:16:27,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-07 00:16:27,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 00:16:27,509 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-07 00:16:27,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 00:16:27,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 00:16:27,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 00:16:27,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 00:16:27,510 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-12-07 00:16:27,510 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-12-07 00:16:27,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 00:16:27,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 00:16:27,511 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-07 00:16:27,592 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 00:16:27,594 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 00:16:27,704 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 00:16:27,709 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 00:16:27,709 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-07 00:16:27,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:16:27 BoogieIcfgContainer [2021-12-07 00:16:27,711 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 00:16:27,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 00:16:27,712 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 00:16:27,715 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 00:16:27,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:16:27" (1/3) ... [2021-12-07 00:16:27,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726724ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:16:27, skipping insertion in model container [2021-12-07 00:16:27,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:27" (2/3) ... [2021-12-07 00:16:27,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726724ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:16:27, skipping insertion in model container [2021-12-07 00:16:27,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:16:27" (3/3) ... [2021-12-07 00:16:27,717 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2021-12-07 00:16:27,721 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-07 00:16:27,721 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 00:16:27,722 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 00:16:27,722 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-07 00:16:27,741 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:16:27,741 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:16:27,741 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:16:27,741 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:16:27,742 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:16:27,742 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:16:27,742 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:16:27,742 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:16:27,742 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:16:27,742 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:16:27,742 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:16:27,743 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:16:27,743 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:16:27,743 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:16:27,743 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:16:27,743 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:16:27,744 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:16:27,744 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:16:27,744 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:16:27,744 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:16:27,746 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:16:27,746 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:16:27,746 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:16:27,747 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:16:27,747 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:16:27,747 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:16:27,750 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-12-07 00:16:27,785 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 00:16:27,791 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=PETRI_NET, 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 [2021-12-07 00:16:27,791 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-07 00:16:27,799 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 74 transitions, 156 flow [2021-12-07 00:16:27,827 INFO L129 PetriNetUnfolder]: 3/73 cut-off events. [2021-12-07 00:16:27,827 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-07 00:16:27,829 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 73 events. 3/73 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 31 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2021-12-07 00:16:27,829 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 74 transitions, 156 flow [2021-12-07 00:16:27,833 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 66 transitions, 135 flow [2021-12-07 00:16:27,846 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2021-12-07 00:16:27,846 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-07 00:16:27,846 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 00:16:27,847 INFO L254 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:16:27,847 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:16:27,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:16:27,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1033982442, now seen corresponding path program 1 times [2021-12-07 00:16:27,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:16:27,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608333398] [2021-12-07 00:16:27,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:16:27,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:16:27,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:27,991 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:16:28,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:28,051 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:16:28,053 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-07 00:16:28,054 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-12-07 00:16:28,055 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2021-12-07 00:16:28,056 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-12-07 00:16:28,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 00:16:28,059 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-12-07 00:16:28,063 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-07 00:16:28,063 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-07 00:16:28,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:16:28 BasicIcfg [2021-12-07 00:16:28,096 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-07 00:16:28,096 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-07 00:16:28,096 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-07 00:16:28,097 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-07 00:16:28,097 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:16:27" (3/4) ... [2021-12-07 00:16:28,099 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-07 00:16:28,139 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2deca7-2fec-4682-b7ac-4d60bebb0b69/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-07 00:16:28,139 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-07 00:16:28,140 INFO L158 Benchmark]: Toolchain (without parser) took 1076.95ms. Allocated memory is still 109.1MB. Free memory was 66.8MB in the beginning and 68.5MB in the end (delta: -1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:16:28,141 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory was 84.5MB in the beginning and 84.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:16:28,141 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.85ms. Allocated memory is still 109.1MB. Free memory was 66.6MB in the beginning and 74.8MB in the end (delta: -8.2MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2021-12-07 00:16:28,142 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.37ms. Allocated memory is still 109.1MB. Free memory was 74.8MB in the beginning and 72.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 00:16:28,142 INFO L158 Benchmark]: Boogie Preprocessor took 18.19ms. Allocated memory is still 109.1MB. Free memory was 72.7MB in the beginning and 71.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:16:28,143 INFO L158 Benchmark]: RCFGBuilder took 258.87ms. Allocated memory is still 109.1MB. Free memory was 71.5MB in the beginning and 59.7MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-07 00:16:28,143 INFO L158 Benchmark]: TraceAbstraction took 383.35ms. Allocated memory is still 109.1MB. Free memory was 59.3MB in the beginning and 72.0MB in the end (delta: -12.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:16:28,144 INFO L158 Benchmark]: Witness Printer took 42.86ms. Allocated memory is still 109.1MB. Free memory was 72.0MB in the beginning and 68.5MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 00:16:28,147 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory was 84.5MB in the beginning and 84.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 336.85ms. Allocated memory is still 109.1MB. Free memory was 66.6MB in the beginning and 74.8MB in the end (delta: -8.2MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.37ms. Allocated memory is still 109.1MB. Free memory was 74.8MB in the beginning and 72.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.19ms. Allocated memory is still 109.1MB. Free memory was 72.7MB in the beginning and 71.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 258.87ms. Allocated memory is still 109.1MB. Free memory was 71.5MB in the beginning and 59.7MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 383.35ms. Allocated memory is still 109.1MB. Free memory was 59.3MB in the beginning and 72.0MB in the end (delta: -12.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 42.86ms. Allocated memory is still 109.1MB. Free memory was 72.0MB in the beginning and 68.5MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. 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: 704]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L697] 0 pthread_mutex_t lock; VAL [lock={3:0}] [L698] 0 pthread_cond_t cond; VAL [cond={4:0}, lock={3:0}] [L699] 0 int x; VAL [cond={4:0}, lock={3:0}, x=0] [L709] 0 pthread_t t; VAL [cond={4:0}, lock={3:0}, t={7:0}, x=0] [L712] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [arg={0:0}, cond={4:0}, lock={3:0}, pthread_create( &t, ((void *)0), thread, ((void *)0) )=-1, t={7:0}, x=0] [L704] 1 !(x == 42) ? reach_error() : (void)0 VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=0] [L704] 1 reach_error() VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=0] - UnprovableResult [Line: 712]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 86 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.3s, 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=135occurred 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, 50 NumberOfCodeBlocks, 50 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! [2021-12-07 00:16:28,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2deca7-2fec-4682-b7ac-4d60bebb0b69/bin/uautomizer-DrprNOufMa/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