./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/25_stack.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/pthread-ext/25_stack.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB --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 4272d82e4e32dc4af1661c2cd99f5af7e9487f266698e80f4586c30581d39fa9 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 16:53:21,972 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:53:21,974 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:53:22,008 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:53:22,008 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:53:22,010 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:53:22,012 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:53:22,014 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:53:22,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:53:22,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:53:22,019 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:53:22,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:53:22,021 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:53:22,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:53:22,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:53:22,026 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:53:22,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:53:22,028 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:53:22,031 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:53:22,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:53:22,036 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:53:22,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:53:22,039 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:53:22,041 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:53:22,046 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:53:22,047 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:53:22,047 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:53:22,049 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:53:22,049 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:53:22,051 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:53:22,051 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:53:22,052 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:53:22,053 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:53:22,054 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:53:22,056 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:53:22,056 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:53:22,057 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:53:22,058 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:53:22,058 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:53:22,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:53:22,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:53:22,061 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:53:22,085 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:53:22,087 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:53:22,087 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:53:22,088 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:53:22,088 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:53:22,089 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:53:22,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:53:22,089 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:53:22,090 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:53:22,090 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:53:22,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:53:22,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:53:22,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:53:22,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:53:22,091 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:53:22,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:53:22,091 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:53:22,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:53:22,092 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:53:22,092 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:53:22,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:53:22,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:53:22,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:53:22,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:53:22,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:53:22,094 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:53:22,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:53:22,094 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:53:22,094 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_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4272d82e4e32dc4af1661c2cd99f5af7e9487f266698e80f4586c30581d39fa9 [2022-10-17 16:53:22,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:53:22,436 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:53:22,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:53:22,440 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:53:22,441 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:53:22,444 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/pthread-ext/25_stack.i [2022-10-17 16:53:22,518 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB/data/a896429a1/9f6087c67f2f4ef496e303dce9253e17/FLAG4e444c85d [2022-10-17 16:53:23,173 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:53:23,174 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/sv-benchmarks/c/pthread-ext/25_stack.i [2022-10-17 16:53:23,196 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB/data/a896429a1/9f6087c67f2f4ef496e303dce9253e17/FLAG4e444c85d [2022-10-17 16:53:23,434 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB/data/a896429a1/9f6087c67f2f4ef496e303dce9253e17 [2022-10-17 16:53:23,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:53:23,438 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:53:23,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:53:23,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:53:23,451 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:53:23,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:53:23" (1/1) ... [2022-10-17 16:53:23,454 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@632c5dff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:23, skipping insertion in model container [2022-10-17 16:53:23,454 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:53:23" (1/1) ... [2022-10-17 16:53:23,463 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:53:23,516 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:53:23,938 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_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/sv-benchmarks/c/pthread-ext/25_stack.i[31028,31041] [2022-10-17 16:53:23,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:53:23,968 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:53:24,038 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_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/sv-benchmarks/c/pthread-ext/25_stack.i[31028,31041] [2022-10-17 16:53:24,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:53:24,106 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:53:24,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:24 WrapperNode [2022-10-17 16:53:24,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:53:24,108 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:53:24,109 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:53:24,110 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:53:24,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:24" (1/1) ... [2022-10-17 16:53:24,163 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:24" (1/1) ... [2022-10-17 16:53:24,200 INFO L138 Inliner]: procedures = 177, calls = 34, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 115 [2022-10-17 16:53:24,201 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:53:24,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:53:24,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:53:24,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:53:24,212 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:24" (1/1) ... [2022-10-17 16:53:24,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:24" (1/1) ... [2022-10-17 16:53:24,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:24" (1/1) ... [2022-10-17 16:53:24,234 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:24" (1/1) ... [2022-10-17 16:53:24,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:24" (1/1) ... [2022-10-17 16:53:24,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:24" (1/1) ... [2022-10-17 16:53:24,261 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:24" (1/1) ... [2022-10-17 16:53:24,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:24" (1/1) ... [2022-10-17 16:53:24,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:53:24,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:53:24,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:53:24,283 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:53:24,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:24" (1/1) ... [2022-10-17 16:53:24,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:53:24,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:53:24,341 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:53:24,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:53:24,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 16:53:24,390 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-10-17 16:53:24,391 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-10-17 16:53:24,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 16:53:24,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_acquire [2022-10-17 16:53:24,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_acquire [2022-10-17 16:53:24,392 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 16:53:24,392 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 16:53:24,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:53:24,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 16:53:24,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 16:53:24,392 INFO L130 BoogieDeclarations]: Found specification of procedure EBStack_init [2022-10-17 16:53:24,392 INFO L138 BoogieDeclarations]: Found implementation of procedure EBStack_init [2022-10-17 16:53:24,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:53:24,393 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_release [2022-10-17 16:53:24,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_release [2022-10-17 16:53:24,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:53:24,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:53:24,395 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-17 16:53:24,583 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:53:24,585 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:53:24,805 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:53:24,898 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:53:24,899 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 16:53:24,899 ERROR L334 CfgBuilder]: Unexpected successor node of atomic block begin: __VERIFIER_atomic_acquireENTRY is neither atomic block end nor a sink node. [2022-10-17 16:53:24,907 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:303) 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) [2022-10-17 16:53:24,911 INFO L158 Benchmark]: Toolchain (without parser) took 1472.67ms. Allocated memory is still 111.1MB. Free memory was 69.8MB in the beginning and 47.8MB in the end (delta: 21.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-10-17 16:53:24,912 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 111.1MB. Free memory is still 87.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:53:24,913 INFO L158 Benchmark]: CACSL2BoogieTranslator took 666.66ms. Allocated memory is still 111.1MB. Free memory was 69.6MB in the beginning and 73.8MB in the end (delta: -4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 16:53:24,914 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.22ms. Allocated memory is still 111.1MB. Free memory was 73.8MB in the beginning and 71.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:53:24,914 INFO L158 Benchmark]: Boogie Preprocessor took 64.25ms. Allocated memory is still 111.1MB. Free memory was 71.7MB in the beginning and 70.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:53:24,915 INFO L158 Benchmark]: RCFGBuilder took 642.96ms. Allocated memory is still 111.1MB. Free memory was 70.1MB in the beginning and 47.8MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-10-17 16:53:24,927 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 111.1MB. Free memory is still 87.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 666.66ms. Allocated memory is still 111.1MB. Free memory was 69.6MB in the beginning and 73.8MB in the end (delta: -4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.22ms. Allocated memory is still 111.1MB. Free memory was 73.8MB in the beginning and 71.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.25ms. Allocated memory is still 111.1MB. Free memory was 71.7MB in the beginning and 70.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 642.96ms. Allocated memory is still 111.1MB. Free memory was 70.1MB in the beginning and 47.8MB in the end (delta: 22.3MB). 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:303) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-10-17 16:53:24,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB/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_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/pthread-ext/25_stack.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB --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 4272d82e4e32dc4af1661c2cd99f5af7e9487f266698e80f4586c30581d39fa9 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 16:53:27,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:53:27,445 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:53:27,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:53:27,484 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:53:27,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:53:27,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:53:27,497 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:53:27,503 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:53:27,508 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:53:27,512 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:53:27,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:53:27,515 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:53:27,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:53:27,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:53:27,522 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:53:27,524 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:53:27,525 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:53:27,527 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:53:27,552 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:53:27,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:53:27,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:53:27,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:53:27,560 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:53:27,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:53:27,571 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:53:27,571 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:53:27,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:53:27,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:53:27,576 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:53:27,576 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:53:27,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:53:27,579 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:53:27,580 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:53:27,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:53:27,582 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:53:27,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:53:27,583 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:53:27,583 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:53:27,585 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:53:27,586 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:53:27,587 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2022-10-17 16:53:27,632 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:53:27,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:53:27,635 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:53:27,635 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:53:27,637 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:53:27,637 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:53:27,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:53:27,638 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:53:27,638 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:53:27,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:53:27,640 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:53:27,640 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:53:27,640 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:53:27,640 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-17 16:53:27,641 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-10-17 16:53:27,641 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-10-17 16:53:27,641 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:53:27,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:53:27,642 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:53:27,642 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:53:27,642 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:53:27,643 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:53:27,643 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:53:27,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:53:27,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:53:27,644 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:53:27,644 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:53:27,644 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-10-17 16:53:27,645 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-10-17 16:53:27,645 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:53:27,645 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2022-10-17 16:53:27,646 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-17 16:53:27,646 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_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4272d82e4e32dc4af1661c2cd99f5af7e9487f266698e80f4586c30581d39fa9 [2022-10-17 16:53:28,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:53:28,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:53:28,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:53:28,106 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:53:28,107 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:53:28,108 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/pthread-ext/25_stack.i [2022-10-17 16:53:28,187 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB/data/8b7ed8514/e38d38b5930c43f9924c6943a0187fb9/FLAG239ecfcd8 [2022-10-17 16:53:28,772 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:53:28,772 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/sv-benchmarks/c/pthread-ext/25_stack.i [2022-10-17 16:53:28,790 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB/data/8b7ed8514/e38d38b5930c43f9924c6943a0187fb9/FLAG239ecfcd8 [2022-10-17 16:53:29,060 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB/data/8b7ed8514/e38d38b5930c43f9924c6943a0187fb9 [2022-10-17 16:53:29,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:53:29,065 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:53:29,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:53:29,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:53:29,070 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:53:29,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:53:29" (1/1) ... [2022-10-17 16:53:29,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1966c143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:29, skipping insertion in model container [2022-10-17 16:53:29,072 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:53:29" (1/1) ... [2022-10-17 16:53:29,080 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:53:29,126 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:53:29,555 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_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/sv-benchmarks/c/pthread-ext/25_stack.i[31028,31041] [2022-10-17 16:53:29,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:53:29,602 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:53:29,674 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_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/sv-benchmarks/c/pthread-ext/25_stack.i[31028,31041] [2022-10-17 16:53:29,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:53:29,737 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:53:29,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:29 WrapperNode [2022-10-17 16:53:29,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:53:29,740 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:53:29,740 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:53:29,740 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:53:29,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:29" (1/1) ... [2022-10-17 16:53:29,783 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:29" (1/1) ... [2022-10-17 16:53:29,812 INFO L138 Inliner]: procedures = 181, calls = 34, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 112 [2022-10-17 16:53:29,813 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:53:29,814 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:53:29,814 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:53:29,814 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:53:29,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:29" (1/1) ... [2022-10-17 16:53:29,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:29" (1/1) ... [2022-10-17 16:53:29,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:29" (1/1) ... [2022-10-17 16:53:29,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:29" (1/1) ... [2022-10-17 16:53:29,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:29" (1/1) ... [2022-10-17 16:53:29,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:29" (1/1) ... [2022-10-17 16:53:29,845 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:29" (1/1) ... [2022-10-17 16:53:29,847 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:29" (1/1) ... [2022-10-17 16:53:29,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:53:29,869 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:53:29,869 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:53:29,869 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:53:29,870 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:29" (1/1) ... [2022-10-17 16:53:29,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:53:29,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:53:29,908 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:53:29,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:53:29,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-10-17 16:53:29,976 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-10-17 16:53:29,976 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-10-17 16:53:29,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_acquire [2022-10-17 16:53:29,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_acquire [2022-10-17 16:53:29,977 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 16:53:29,977 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 16:53:29,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:53:29,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 16:53:29,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 16:53:29,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-10-17 16:53:29,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-10-17 16:53:29,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-10-17 16:53:29,985 INFO L130 BoogieDeclarations]: Found specification of procedure EBStack_init [2022-10-17 16:53:29,986 INFO L138 BoogieDeclarations]: Found implementation of procedure EBStack_init [2022-10-17 16:53:29,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_release [2022-10-17 16:53:29,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_release [2022-10-17 16:53:29,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:53:29,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:53:29,988 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-17 16:53:30,253 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:53:30,256 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:53:30,619 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:53:30,731 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:53:30,732 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 16:53:30,733 ERROR L334 CfgBuilder]: Unexpected successor node of atomic block begin: __VERIFIER_atomic_acquireENTRY is neither atomic block end nor a sink node. [2022-10-17 16:53:30,734 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:303) 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) [2022-10-17 16:53:30,738 INFO L158 Benchmark]: Toolchain (without parser) took 1672.97ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 36.7MB in the beginning and 59.0MB in the end (delta: -22.3MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2022-10-17 16:53:30,739 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 60.8MB. Free memory is still 40.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:53:30,740 INFO L158 Benchmark]: CACSL2BoogieTranslator took 672.51ms. Allocated memory is still 60.8MB. Free memory was 36.5MB in the beginning and 32.7MB in the end (delta: 3.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-10-17 16:53:30,741 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.40ms. Allocated memory is still 60.8MB. Free memory was 32.7MB in the beginning and 30.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:53:30,742 INFO L158 Benchmark]: Boogie Preprocessor took 54.44ms. Allocated memory is still 60.8MB. Free memory was 30.4MB in the beginning and 28.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:53:30,743 INFO L158 Benchmark]: RCFGBuilder took 867.90ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 28.5MB in the beginning and 59.0MB in the end (delta: -30.4MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2022-10-17 16:53:30,746 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 60.8MB. Free memory is still 40.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 672.51ms. Allocated memory is still 60.8MB. Free memory was 36.5MB in the beginning and 32.7MB in the end (delta: 3.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.40ms. Allocated memory is still 60.8MB. Free memory was 32.7MB in the beginning and 30.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.44ms. Allocated memory is still 60.8MB. Free memory was 30.4MB in the beginning and 28.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 867.90ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 28.5MB in the beginning and 59.0MB in the end (delta: -30.4MB). Peak memory consumption was 9.0MB. 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:303) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-10-17 16:53:30,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8b1f9ba-fc68-4619-9ae2-f518ab2960cc/bin/ukojak-92XMlrwhuB/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?