./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/bin/ukojak-rkRKPMF4O4 --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 89f85a9c071b9d85a8a89a1542b8738a051beeaf8ef3f8b389c5a92dd50b70df --- 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-2329fc7 [2022-12-14 18:19:34,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 18:19:34,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 18:19:34,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 18:19:34,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 18:19:34,063 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 18:19:34,063 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 18:19:34,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 18:19:34,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 18:19:34,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 18:19:34,066 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 18:19:34,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 18:19:34,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 18:19:34,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 18:19:34,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 18:19:34,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 18:19:34,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 18:19:34,071 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 18:19:34,072 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 18:19:34,073 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 18:19:34,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 18:19:34,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 18:19:34,075 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 18:19:34,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 18:19:34,078 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 18:19:34,078 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 18:19:34,079 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 18:19:34,079 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 18:19:34,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 18:19:34,080 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 18:19:34,080 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 18:19:34,081 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 18:19:34,081 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 18:19:34,082 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 18:19:34,083 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 18:19:34,083 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 18:19:34,083 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 18:19:34,084 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 18:19:34,084 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 18:19:34,084 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 18:19:34,085 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 18:19:34,086 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-12-14 18:19:34,101 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 18:19:34,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 18:19:34,102 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 18:19:34,102 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 18:19:34,103 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 18:19:34,103 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 18:19:34,103 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 18:19:34,103 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 18:19:34,103 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 18:19:34,103 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 18:19:34,104 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 18:19:34,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 18:19:34,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 18:19:34,104 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 18:19:34,104 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 18:19:34,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 18:19:34,105 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 18:19:34,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 18:19:34,105 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 18:19:34,105 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 18:19:34,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 18:19:34,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 18:19:34,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 18:19:34,106 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 18:19:34,106 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 18:19:34,106 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 18:19:34,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 18:19:34,107 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 18:19:34,107 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_8f966474-32ac-46cf-a5da-be469d7c0f3b/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89f85a9c071b9d85a8a89a1542b8738a051beeaf8ef3f8b389c5a92dd50b70df [2022-12-14 18:19:34,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 18:19:34,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 18:19:34,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 18:19:34,302 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 18:19:34,302 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 18:19:34,303 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c [2022-12-14 18:19:36,863 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 18:19:37,024 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 18:19:37,024 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c [2022-12-14 18:19:37,030 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/bin/ukojak-rkRKPMF4O4/data/9e0a8968f/a9e89ccba87042218932bf2449db1cc3/FLAG876633e93 [2022-12-14 18:19:37,041 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/bin/ukojak-rkRKPMF4O4/data/9e0a8968f/a9e89ccba87042218932bf2449db1cc3 [2022-12-14 18:19:37,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 18:19:37,044 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 18:19:37,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 18:19:37,046 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 18:19:37,048 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 18:19:37,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:19:37" (1/1) ... [2022-12-14 18:19:37,049 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fba044b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:37, skipping insertion in model container [2022-12-14 18:19:37,049 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:19:37" (1/1) ... [2022-12-14 18:19:37,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 18:19:37,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 18:19:37,196 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 18:19:37,198 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 18:19:37,200 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 18:19:37,201 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 18:19:37,203 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 18:19:37,204 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 18:19:37,211 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c[2696,2709] [2022-12-14 18:19:37,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 18:19:37,230 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 18:19:37,241 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 18:19:37,243 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 18:19:37,243 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 18:19:37,244 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 18:19:37,245 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 18:19:37,246 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 18:19:37,250 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c[2696,2709] [2022-12-14 18:19:37,253 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 18:19:37,265 INFO L208 MainTranslator]: Completed translation [2022-12-14 18:19:37,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:37 WrapperNode [2022-12-14 18:19:37,265 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 18:19:37,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 18:19:37,266 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 18:19:37,266 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 18:19:37,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:37" (1/1) ... [2022-12-14 18:19:37,279 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:37" (1/1) ... [2022-12-14 18:19:37,300 INFO L138 Inliner]: procedures = 24, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 80 [2022-12-14 18:19:37,300 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 18:19:37,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 18:19:37,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 18:19:37,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 18:19:37,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:37" (1/1) ... [2022-12-14 18:19:37,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:37" (1/1) ... [2022-12-14 18:19:37,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:37" (1/1) ... [2022-12-14 18:19:37,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:37" (1/1) ... [2022-12-14 18:19:37,315 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:37" (1/1) ... [2022-12-14 18:19:37,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:37" (1/1) ... [2022-12-14 18:19:37,319 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:37" (1/1) ... [2022-12-14 18:19:37,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:37" (1/1) ... [2022-12-14 18:19:37,321 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 18:19:37,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 18:19:37,322 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 18:19:37,322 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 18:19:37,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:37" (1/1) ... [2022-12-14 18:19:37,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 18:19:37,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 18:19:37,347 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 18:19:37,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 18:19:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 18:19:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-14 18:19:37,380 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-14 18:19:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-14 18:19:37,380 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-14 18:19:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 18:19:37,380 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 18:19:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 18:19:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 18:19:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 18:19:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 18:19:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 18:19:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 18:19:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 18:19:37,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 18:19:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 18:19:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 18:19:37,382 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 18:19:37,462 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 18:19:37,463 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 18:19:37,631 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 18:19:37,711 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 18:19:37,712 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-14 18:19:37,712 ERROR L334 CfgBuilder]: Unexpected successor node of atomic block begin: L49 is neither atomic block end nor a sink node. [2022-12-14 18:19:37,713 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) [2022-12-14 18:19:37,716 INFO L158 Benchmark]: Toolchain (without parser) took 671.57ms. Allocated memory is still 115.3MB. Free memory was 83.7MB in the beginning and 48.0MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-12-14 18:19:37,717 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 115.3MB. Free memory is still 91.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 18:19:37,726 INFO L158 Benchmark]: CACSL2BoogieTranslator took 219.97ms. Allocated memory is still 115.3MB. Free memory was 83.6MB in the beginning and 71.5MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 18:19:37,726 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.24ms. Allocated memory is still 115.3MB. Free memory was 71.5MB in the beginning and 69.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 18:19:37,727 INFO L158 Benchmark]: Boogie Preprocessor took 20.48ms. Allocated memory is still 115.3MB. Free memory was 69.6MB in the beginning and 68.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 18:19:37,727 INFO L158 Benchmark]: RCFGBuilder took 393.29ms. Allocated memory is still 115.3MB. Free memory was 68.1MB in the beginning and 48.0MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 18:19:37,729 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 115.3MB. Free memory is still 91.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 219.97ms. Allocated memory is still 115.3MB. Free memory was 83.6MB in the beginning and 71.5MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.24ms. Allocated memory is still 115.3MB. Free memory was 71.5MB in the beginning and 69.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.48ms. Allocated memory is still 115.3MB. Free memory was 69.6MB in the beginning and 68.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 393.29ms. Allocated memory is still 115.3MB. Free memory was 68.1MB in the beginning and 48.0MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. 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. [2022-12-14 18:19:37,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/bin/ukojak-rkRKPMF4O4/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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/bin/ukojak-rkRKPMF4O4 --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 89f85a9c071b9d85a8a89a1542b8738a051beeaf8ef3f8b389c5a92dd50b70df --- 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-2329fc7 [2022-12-14 18:19:39,415 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 18:19:39,417 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 18:19:39,435 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 18:19:39,435 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 18:19:39,436 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 18:19:39,438 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 18:19:39,439 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 18:19:39,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 18:19:39,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 18:19:39,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 18:19:39,444 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 18:19:39,444 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 18:19:39,445 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 18:19:39,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 18:19:39,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 18:19:39,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 18:19:39,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 18:19:39,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 18:19:39,451 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 18:19:39,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 18:19:39,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 18:19:39,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 18:19:39,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 18:19:39,457 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 18:19:39,457 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 18:19:39,457 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 18:19:39,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 18:19:39,458 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 18:19:39,459 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 18:19:39,459 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 18:19:39,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 18:19:39,460 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 18:19:39,460 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 18:19:39,461 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 18:19:39,466 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 18:19:39,467 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 18:19:39,468 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 18:19:39,468 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 18:19:39,469 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 18:19:39,470 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 18:19:39,470 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2022-12-14 18:19:39,497 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 18:19:39,497 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 18:19:39,498 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 18:19:39,498 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 18:19:39,499 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 18:19:39,499 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 18:19:39,499 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 18:19:39,499 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 18:19:39,499 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 18:19:39,500 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 18:19:39,500 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 18:19:39,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 18:19:39,500 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 18:19:39,500 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 18:19:39,500 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 18:19:39,501 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 18:19:39,501 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 18:19:39,501 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 18:19:39,501 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 18:19:39,501 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 18:19:39,502 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 18:19:39,502 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 18:19:39,502 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 18:19:39,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 18:19:39,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 18:19:39,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 18:19:39,503 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 18:19:39,503 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 18:19:39,503 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 18:19:39,503 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 18:19:39,504 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2022-12-14 18:19:39,504 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 18:19:39,504 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_8f966474-32ac-46cf-a5da-be469d7c0f3b/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89f85a9c071b9d85a8a89a1542b8738a051beeaf8ef3f8b389c5a92dd50b70df [2022-12-14 18:19:39,740 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 18:19:39,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 18:19:39,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 18:19:39,758 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 18:19:39,758 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 18:19:39,759 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c [2022-12-14 18:19:42,372 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 18:19:42,511 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 18:19:42,512 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c [2022-12-14 18:19:42,518 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/bin/ukojak-rkRKPMF4O4/data/d30c330aa/bfdf7aa225494088b8730587a1583ee8/FLAGebd8be590 [2022-12-14 18:19:42,529 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/bin/ukojak-rkRKPMF4O4/data/d30c330aa/bfdf7aa225494088b8730587a1583ee8 [2022-12-14 18:19:42,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 18:19:42,532 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 18:19:42,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 18:19:42,533 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 18:19:42,535 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 18:19:42,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:19:42" (1/1) ... [2022-12-14 18:19:42,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fc37168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:42, skipping insertion in model container [2022-12-14 18:19:42,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:19:42" (1/1) ... [2022-12-14 18:19:42,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 18:19:42,568 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 18:19:42,715 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 18:19:42,717 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 18:19:42,719 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 18:19:42,721 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 18:19:42,722 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 18:19:42,724 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 18:19:42,731 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c[2696,2709] [2022-12-14 18:19:42,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 18:19:42,752 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-14 18:19:42,755 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 18:19:42,760 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 18:19:42,761 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 18:19:42,762 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 18:19:42,763 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 18:19:42,764 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 18:19:42,765 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 18:19:42,769 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c[2696,2709] [2022-12-14 18:19:42,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 18:19:42,776 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 18:19:42,789 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 18:19:42,791 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 18:19:42,791 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 18:19:42,792 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 18:19:42,793 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 18:19:42,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 18:19:42,798 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c[2696,2709] [2022-12-14 18:19:42,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 18:19:42,817 INFO L208 MainTranslator]: Completed translation [2022-12-14 18:19:42,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:42 WrapperNode [2022-12-14 18:19:42,818 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 18:19:42,819 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 18:19:42,819 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 18:19:42,819 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 18:19:42,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:42" (1/1) ... [2022-12-14 18:19:42,836 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:42" (1/1) ... [2022-12-14 18:19:42,853 INFO L138 Inliner]: procedures = 26, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 76 [2022-12-14 18:19:42,854 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 18:19:42,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 18:19:42,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 18:19:42,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 18:19:42,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:42" (1/1) ... [2022-12-14 18:19:42,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:42" (1/1) ... [2022-12-14 18:19:42,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:42" (1/1) ... [2022-12-14 18:19:42,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:42" (1/1) ... [2022-12-14 18:19:42,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:42" (1/1) ... [2022-12-14 18:19:42,882 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:42" (1/1) ... [2022-12-14 18:19:42,884 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:42" (1/1) ... [2022-12-14 18:19:42,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:42" (1/1) ... [2022-12-14 18:19:42,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 18:19:42,889 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 18:19:42,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 18:19:42,889 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 18:19:42,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:42" (1/1) ... [2022-12-14 18:19:42,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 18:19:42,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 18:19:42,917 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 18:19:42,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 18:19:42,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 18:19:42,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 18:19:42,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 18:19:42,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 18:19:42,951 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-14 18:19:42,951 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-14 18:19:42,951 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-14 18:19:42,951 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-14 18:19:42,951 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 18:19:42,952 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 18:19:42,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 18:19:42,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 18:19:42,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 18:19:42,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 18:19:42,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 18:19:42,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 18:19:42,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 18:19:42,954 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 18:19:43,038 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 18:19:43,040 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 18:19:43,284 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 18:19:43,380 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 18:19:43,380 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-14 18:19:43,381 ERROR L334 CfgBuilder]: Unexpected successor node of atomic block begin: L49 is neither atomic block end nor a sink node. [2022-12-14 18:19:43,382 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) [2022-12-14 18:19:43,386 INFO L158 Benchmark]: Toolchain (without parser) took 853.30ms. Allocated memory is still 62.9MB. Free memory was 31.9MB in the beginning and 32.7MB in the end (delta: -843.4kB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2022-12-14 18:19:43,386 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 48.2MB. Free memory was 26.6MB in the beginning and 26.5MB in the end (delta: 54.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 18:19:43,387 INFO L158 Benchmark]: CACSL2BoogieTranslator took 285.65ms. Allocated memory is still 62.9MB. Free memory was 31.6MB in the beginning and 31.4MB in the end (delta: 224.2kB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. [2022-12-14 18:19:43,387 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.87ms. Allocated memory is still 62.9MB. Free memory was 31.2MB in the beginning and 29.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 18:19:43,388 INFO L158 Benchmark]: Boogie Preprocessor took 33.59ms. Allocated memory is still 62.9MB. Free memory was 29.6MB in the beginning and 43.9MB in the end (delta: -14.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 18:19:43,388 INFO L158 Benchmark]: RCFGBuilder took 495.75ms. Allocated memory is still 62.9MB. Free memory was 43.7MB in the beginning and 32.7MB in the end (delta: 11.0MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. [2022-12-14 18:19:43,391 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 48.2MB. Free memory was 26.6MB in the beginning and 26.5MB in the end (delta: 54.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 285.65ms. Allocated memory is still 62.9MB. Free memory was 31.6MB in the beginning and 31.4MB in the end (delta: 224.2kB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.87ms. Allocated memory is still 62.9MB. Free memory was 31.2MB in the beginning and 29.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.59ms. Allocated memory is still 62.9MB. Free memory was 29.6MB in the beginning and 43.9MB in the end (delta: -14.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 495.75ms. Allocated memory is still 62.9MB. Free memory was 43.7MB in the beginning and 32.7MB in the end (delta: 11.0MB). Peak memory consumption was 18.4MB. 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. [2022-12-14 18:19:43,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f966474-32ac-46cf-a5da-be469d7c0f3b/bin/ukojak-rkRKPMF4O4/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?