./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/26_stack_cas_longest-2.i --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_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/pthread-ext/26_stack_cas_longest-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 79f59481c49375d27b8409383d6d600e90e5ee29536655deda4d0ae0ca7faefc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 23:07:05,030 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 23:07:05,032 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 23:07:05,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 23:07:05,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 23:07:05,063 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 23:07:05,064 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 23:07:05,067 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 23:07:05,069 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 23:07:05,071 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 23:07:05,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 23:07:05,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 23:07:05,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 23:07:05,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 23:07:05,077 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 23:07:05,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 23:07:05,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 23:07:05,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 23:07:05,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 23:07:05,085 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 23:07:05,087 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 23:07:05,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 23:07:05,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 23:07:05,092 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 23:07:05,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 23:07:05,096 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 23:07:05,097 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 23:07:05,098 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 23:07:05,098 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 23:07:05,100 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 23:07:05,100 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 23:07:05,101 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 23:07:05,102 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 23:07:05,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 23:07:05,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 23:07:05,105 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 23:07:05,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 23:07:05,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 23:07:05,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 23:07:05,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 23:07:05,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 23:07:05,108 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-22 23:07:05,134 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 23:07:05,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 23:07:05,137 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-22 23:07:05,138 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-22 23:07:05,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 23:07:05,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 23:07:05,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 23:07:05,139 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 23:07:05,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 23:07:05,140 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 23:07:05,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 23:07:05,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 23:07:05,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 23:07:05,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 23:07:05,141 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 23:07:05,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 23:07:05,141 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 23:07:05,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 23:07:05,142 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-22 23:07:05,142 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-22 23:07:05,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 23:07:05,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:07:05,142 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 23:07:05,142 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 23:07:05,142 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 23:07:05,143 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-22 23:07:05,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 23:07:05,143 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 23:07:05,143 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_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79f59481c49375d27b8409383d6d600e90e5ee29536655deda4d0ae0ca7faefc [2021-11-22 23:07:05,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 23:07:05,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 23:07:05,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 23:07:05,492 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 23:07:05,493 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 23:07:05,494 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/pthread-ext/26_stack_cas_longest-2.i [2021-11-22 23:07:05,583 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ/data/3c0c2300f/6b7dad2fe9e74e97aaef82fd52666c12/FLAGecddac002 [2021-11-22 23:07:06,165 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 23:07:06,166 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9835664-53a0-410d-a24d-1f69883d390e/sv-benchmarks/c/pthread-ext/26_stack_cas_longest-2.i [2021-11-22 23:07:06,186 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ/data/3c0c2300f/6b7dad2fe9e74e97aaef82fd52666c12/FLAGecddac002 [2021-11-22 23:07:06,474 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ/data/3c0c2300f/6b7dad2fe9e74e97aaef82fd52666c12 [2021-11-22 23:07:06,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 23:07:06,480 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 23:07:06,483 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 23:07:06,484 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 23:07:06,487 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 23:07:06,487 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:07:06" (1/1) ... [2021-11-22 23:07:06,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75f0f626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:06, skipping insertion in model container [2021-11-22 23:07:06,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:07:06" (1/1) ... [2021-11-22 23:07:06,496 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 23:07:06,563 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 23:07:06,966 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_c9835664-53a0-410d-a24d-1f69883d390e/sv-benchmarks/c/pthread-ext/26_stack_cas_longest-2.i[31164,31177] [2021-11-22 23:07:06,979 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:07:06,999 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 23:07:07,066 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_c9835664-53a0-410d-a24d-1f69883d390e/sv-benchmarks/c/pthread-ext/26_stack_cas_longest-2.i[31164,31177] [2021-11-22 23:07:07,079 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:07:07,126 INFO L208 MainTranslator]: Completed translation [2021-11-22 23:07:07,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:07 WrapperNode [2021-11-22 23:07:07,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 23:07:07,128 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 23:07:07,129 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 23:07:07,129 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 23:07:07,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:07" (1/1) ... [2021-11-22 23:07:07,172 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:07" (1/1) ... [2021-11-22 23:07:07,208 INFO L137 Inliner]: procedures = 177, calls = 47, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 147 [2021-11-22 23:07:07,208 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 23:07:07,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 23:07:07,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 23:07:07,209 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 23:07:07,218 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:07" (1/1) ... [2021-11-22 23:07:07,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:07" (1/1) ... [2021-11-22 23:07:07,234 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:07" (1/1) ... [2021-11-22 23:07:07,234 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:07" (1/1) ... [2021-11-22 23:07:07,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:07" (1/1) ... [2021-11-22 23:07:07,245 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:07" (1/1) ... [2021-11-22 23:07:07,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:07" (1/1) ... [2021-11-22 23:07:07,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 23:07:07,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 23:07:07,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 23:07:07,265 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 23:07:07,273 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:07" (1/1) ... [2021-11-22 23:07:07,280 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:07:07,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-22 23:07:07,308 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-22 23:07:07,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-22 23:07:07,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 23:07:07,358 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-11-22 23:07:07,358 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-11-22 23:07:07,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 23:07:07,359 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_acquire [2021-11-22 23:07:07,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_acquire [2021-11-22 23:07:07,359 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-22 23:07:07,359 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-22 23:07:07,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 23:07:07,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 23:07:07,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 23:07:07,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 23:07:07,360 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_release [2021-11-22 23:07:07,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_release [2021-11-22 23:07:07,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 23:07:07,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 23:07:07,362 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-22 23:07:07,537 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 23:07:07,539 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 23:07:07,851 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 23:07:07,979 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 23:07:07,979 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-22 23:07:07,980 ERROR L335 CfgBuilder]: Unexpected successor node of atomic block begin: __VERIFIER_atomic_releaseENTRY is neither atomic block end nor a sink node. [2021-11-22 23:07:07,981 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-22 23:07:07,985 INFO L158 Benchmark]: Toolchain (without parser) took 1504.12ms. Allocated memory is still 138.4MB. Free memory was 101.2MB in the beginning and 75.3MB in the end (delta: 25.9MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2021-11-22 23:07:07,985 INFO L158 Benchmark]: CDTParser took 0.90ms. Allocated memory is still 81.8MB. Free memory is still 40.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:07:07,986 INFO L158 Benchmark]: CACSL2BoogieTranslator took 643.53ms. Allocated memory is still 138.4MB. Free memory was 101.2MB in the beginning and 100.9MB in the end (delta: 326.0kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 23:07:07,987 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.26ms. Allocated memory is still 138.4MB. Free memory was 100.4MB in the beginning and 98.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 23:07:07,988 INFO L158 Benchmark]: Boogie Preprocessor took 55.33ms. Allocated memory is still 138.4MB. Free memory was 98.4MB in the beginning and 96.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 23:07:07,988 INFO L158 Benchmark]: RCFGBuilder took 717.83ms. Allocated memory is still 138.4MB. Free memory was 96.7MB in the beginning and 75.3MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-22 23:07:07,991 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.90ms. Allocated memory is still 81.8MB. Free memory is still 40.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 643.53ms. Allocated memory is still 138.4MB. Free memory was 101.2MB in the beginning and 100.9MB in the end (delta: 326.0kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.26ms. Allocated memory is still 138.4MB. Free memory was 100.4MB in the beginning and 98.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.33ms. Allocated memory is still 138.4MB. Free memory was 98.4MB in the beginning and 96.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 717.83ms. Allocated memory is still 138.4MB. Free memory was 96.7MB in the beginning and 75.3MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block? de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:304) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-22 23:07:08,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/pthread-ext/26_stack_cas_longest-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 79f59481c49375d27b8409383d6d600e90e5ee29536655deda4d0ae0ca7faefc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 23:07:10,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 23:07:10,394 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 23:07:10,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 23:07:10,446 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 23:07:10,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 23:07:10,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 23:07:10,457 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 23:07:10,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 23:07:10,465 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 23:07:10,469 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 23:07:10,471 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 23:07:10,471 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 23:07:10,473 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 23:07:10,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 23:07:10,479 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 23:07:10,481 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 23:07:10,482 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 23:07:10,484 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 23:07:10,491 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 23:07:10,493 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 23:07:10,494 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 23:07:10,497 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 23:07:10,499 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 23:07:10,507 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 23:07:10,508 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 23:07:10,508 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 23:07:10,510 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 23:07:10,511 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 23:07:10,512 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 23:07:10,512 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 23:07:10,513 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 23:07:10,515 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 23:07:10,516 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 23:07:10,517 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 23:07:10,518 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 23:07:10,518 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 23:07:10,519 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 23:07:10,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 23:07:10,521 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 23:07:10,522 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 23:07:10,527 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2021-11-22 23:07:10,566 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 23:07:10,566 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 23:07:10,568 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-22 23:07:10,568 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-22 23:07:10,569 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 23:07:10,570 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 23:07:10,570 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 23:07:10,570 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 23:07:10,571 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 23:07:10,571 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 23:07:10,572 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 23:07:10,572 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 23:07:10,573 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 23:07:10,573 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-22 23:07:10,573 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-22 23:07:10,574 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-22 23:07:10,574 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 23:07:10,574 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 23:07:10,574 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 23:07:10,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 23:07:10,575 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-22 23:07:10,575 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-22 23:07:10,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 23:07:10,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:07:10,576 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 23:07:10,576 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 23:07:10,577 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 23:07:10,577 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-22 23:07:10,577 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-22 23:07:10,577 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 23:07:10,578 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-22 23:07:10,578 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-22 23:07:10,578 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79f59481c49375d27b8409383d6d600e90e5ee29536655deda4d0ae0ca7faefc [2021-11-22 23:07:10,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 23:07:10,997 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 23:07:11,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 23:07:11,001 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 23:07:11,002 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 23:07:11,003 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/pthread-ext/26_stack_cas_longest-2.i [2021-11-22 23:07:11,065 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ/data/db057faf2/b5c6baa377384ada99508771343ef12f/FLAGf65ab050d [2021-11-22 23:07:11,608 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 23:07:11,608 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9835664-53a0-410d-a24d-1f69883d390e/sv-benchmarks/c/pthread-ext/26_stack_cas_longest-2.i [2021-11-22 23:07:11,622 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ/data/db057faf2/b5c6baa377384ada99508771343ef12f/FLAGf65ab050d [2021-11-22 23:07:11,910 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ/data/db057faf2/b5c6baa377384ada99508771343ef12f [2021-11-22 23:07:11,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 23:07:11,914 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 23:07:11,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 23:07:11,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 23:07:11,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 23:07:11,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:07:11" (1/1) ... [2021-11-22 23:07:11,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5174aae1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:11, skipping insertion in model container [2021-11-22 23:07:11,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:07:11" (1/1) ... [2021-11-22 23:07:11,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 23:07:11,971 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 23:07:12,313 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_c9835664-53a0-410d-a24d-1f69883d390e/sv-benchmarks/c/pthread-ext/26_stack_cas_longest-2.i[31164,31177] [2021-11-22 23:07:12,322 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:07:12,334 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 23:07:12,383 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_c9835664-53a0-410d-a24d-1f69883d390e/sv-benchmarks/c/pthread-ext/26_stack_cas_longest-2.i[31164,31177] [2021-11-22 23:07:12,386 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:07:12,430 INFO L208 MainTranslator]: Completed translation [2021-11-22 23:07:12,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:12 WrapperNode [2021-11-22 23:07:12,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 23:07:12,432 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 23:07:12,432 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 23:07:12,432 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 23:07:12,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:12" (1/1) ... [2021-11-22 23:07:12,459 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:12" (1/1) ... [2021-11-22 23:07:12,487 INFO L137 Inliner]: procedures = 181, calls = 47, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 144 [2021-11-22 23:07:12,487 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 23:07:12,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 23:07:12,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 23:07:12,489 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 23:07:12,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:12" (1/1) ... [2021-11-22 23:07:12,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:12" (1/1) ... [2021-11-22 23:07:12,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:12" (1/1) ... [2021-11-22 23:07:12,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:12" (1/1) ... [2021-11-22 23:07:12,510 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:12" (1/1) ... [2021-11-22 23:07:12,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:12" (1/1) ... [2021-11-22 23:07:12,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:12" (1/1) ... [2021-11-22 23:07:12,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 23:07:12,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 23:07:12,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 23:07:12,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 23:07:12,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:12" (1/1) ... [2021-11-22 23:07:12,550 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:07:12,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-22 23:07:12,586 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-22 23:07:12,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-22 23:07:12,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-22 23:07:12,625 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-11-22 23:07:12,625 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-11-22 23:07:12,626 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_acquire [2021-11-22 23:07:12,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_acquire [2021-11-22 23:07:12,626 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-22 23:07:12,626 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-22 23:07:12,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 23:07:12,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 23:07:12,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 23:07:12,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-22 23:07:12,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-22 23:07:12,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-22 23:07:12,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_release [2021-11-22 23:07:12,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_release [2021-11-22 23:07:12,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 23:07:12,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 23:07:12,629 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-22 23:07:12,788 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 23:07:12,804 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 23:07:13,142 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 23:07:13,240 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 23:07:13,240 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-22 23:07:13,241 ERROR L335 CfgBuilder]: Unexpected successor node of atomic block begin: __VERIFIER_atomic_releaseENTRY is neither atomic block end nor a sink node. [2021-11-22 23:07:13,244 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-22 23:07:13,248 INFO L158 Benchmark]: Toolchain (without parser) took 1333.16ms. Allocated memory was 58.7MB in the beginning and 83.9MB in the end (delta: 25.2MB). Free memory was 35.3MB in the beginning and 45.7MB in the end (delta: -10.5MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2021-11-22 23:07:13,250 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 58.7MB. Free memory is still 39.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:07:13,252 INFO L158 Benchmark]: CACSL2BoogieTranslator took 514.67ms. Allocated memory is still 58.7MB. Free memory was 35.1MB in the beginning and 30.8MB in the end (delta: 4.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-22 23:07:13,253 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.72ms. Allocated memory is still 58.7MB. Free memory was 30.8MB in the beginning and 28.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 23:07:13,255 INFO L158 Benchmark]: Boogie Preprocessor took 50.04ms. Allocated memory is still 58.7MB. Free memory was 28.3MB in the beginning and 26.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 23:07:13,256 INFO L158 Benchmark]: RCFGBuilder took 707.12ms. Allocated memory was 58.7MB in the beginning and 83.9MB in the end (delta: 25.2MB). Free memory was 26.5MB in the beginning and 45.7MB in the end (delta: -19.3MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2021-11-22 23:07:13,259 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 58.7MB. Free memory is still 39.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 514.67ms. Allocated memory is still 58.7MB. Free memory was 35.1MB in the beginning and 30.8MB in the end (delta: 4.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.72ms. Allocated memory is still 58.7MB. Free memory was 30.8MB in the beginning and 28.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.04ms. Allocated memory is still 58.7MB. Free memory was 28.3MB in the beginning and 26.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 707.12ms. Allocated memory was 58.7MB in the beginning and 83.9MB in the end (delta: 25.2MB). Free memory was 26.5MB in the beginning and 45.7MB in the end (delta: -19.3MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block? de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:304) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-22 23:07:13,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9835664-53a0-410d-a24d-1f69883d390e/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block?