./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-send-receive.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-send-receive.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 238e609d3671ff2de494998b0abc6a14651375b5eb423e7b66fc3d987b466268 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:21:22,692 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:21:22,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:21:22,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:21:22,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:21:22,752 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:21:22,755 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:21:22,760 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:21:22,763 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:21:22,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:21:22,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:21:22,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:21:22,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:21:22,777 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:21:22,780 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:21:22,786 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:21:22,788 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:21:22,789 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:21:22,795 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:21:22,802 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:21:22,805 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:21:22,806 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:21:22,807 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:21:22,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:21:22,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:21:22,812 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:21:22,813 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:21:22,814 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:21:22,814 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:21:22,816 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:21:22,816 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:21:22,817 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:21:22,818 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:21:22,819 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:21:22,820 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:21:22,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:21:22,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:21:22,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:21:22,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:21:22,822 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:21:22,823 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:21:22,824 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:21:22,849 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:21:22,849 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:21:22,850 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:21:22,850 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:21:22,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:21:22,851 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:21:22,851 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:21:22,851 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:21:22,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:21:22,852 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:21:22,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:21:22,852 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:21:22,852 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:21:22,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:21:22,853 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:21:22,853 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:21:22,853 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:21:22,853 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:21:22,854 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:21:22,854 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:21:22,854 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:21:22,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:21:22,855 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:21:22,855 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:21:22,855 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:21:22,855 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:21:22,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:21:22,856 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:21:22,856 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_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 238e609d3671ff2de494998b0abc6a14651375b5eb423e7b66fc3d987b466268 [2021-11-23 01:21:23,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:21:23,192 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:21:23,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:21:23,197 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:21:23,198 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:21:23,200 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/weaver/popl20-send-receive.wvr.c [2021-11-23 01:21:23,276 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ/data/633d71248/7ddc2bc21c774397a68fc0d94df584c5/FLAG5c95c45f8 [2021-11-23 01:21:23,749 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:21:23,749 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/sv-benchmarks/c/weaver/popl20-send-receive.wvr.c [2021-11-23 01:21:23,756 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ/data/633d71248/7ddc2bc21c774397a68fc0d94df584c5/FLAG5c95c45f8 [2021-11-23 01:21:24,147 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ/data/633d71248/7ddc2bc21c774397a68fc0d94df584c5 [2021-11-23 01:21:24,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:21:24,152 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:21:24,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:21:24,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:21:24,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:21:24,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:21:24" (1/1) ... [2021-11-23 01:21:24,164 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d070e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:24, skipping insertion in model container [2021-11-23 01:21:24,164 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:21:24" (1/1) ... [2021-11-23 01:21:24,171 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:21:24,205 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:21:24,403 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_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/sv-benchmarks/c/weaver/popl20-send-receive.wvr.c[3107,3120] [2021-11-23 01:21:24,411 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:21:24,419 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:21:24,444 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_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/sv-benchmarks/c/weaver/popl20-send-receive.wvr.c[3107,3120] [2021-11-23 01:21:24,448 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:21:24,463 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:21:24,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:24 WrapperNode [2021-11-23 01:21:24,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:21:24,465 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:21:24,465 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:21:24,466 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:21:24,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:24" (1/1) ... [2021-11-23 01:21:24,482 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:24" (1/1) ... [2021-11-23 01:21:24,505 INFO L137 Inliner]: procedures = 25, calls = 52, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 90 [2021-11-23 01:21:24,506 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:21:24,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:21:24,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:21:24,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:21:24,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:24" (1/1) ... [2021-11-23 01:21:24,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:24" (1/1) ... [2021-11-23 01:21:24,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:24" (1/1) ... [2021-11-23 01:21:24,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:24" (1/1) ... [2021-11-23 01:21:24,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:24" (1/1) ... [2021-11-23 01:21:24,534 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:24" (1/1) ... [2021-11-23 01:21:24,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:24" (1/1) ... [2021-11-23 01:21:24,539 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:21:24,540 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:21:24,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:21:24,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:21:24,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:24" (1/1) ... [2021-11-23 01:21:24,550 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:21:24,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:21:24,576 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:21:24,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:21:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:21:24,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 01:21:24,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 01:21:24,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 01:21:24,634 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-23 01:21:24,635 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-23 01:21:24,635 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-23 01:21:24,635 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-23 01:21:24,635 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-23 01:21:24,635 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-23 01:21:24,636 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 01:21:24,636 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 01:21:24,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:21:24,636 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 01:21:24,637 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 01:21:24,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 01:21:24,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:21:24,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:21:24,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 01:21:24,639 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 01:21:24,717 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:21:24,719 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:21:24,989 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:21:25,157 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:21:25,161 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-23 01:21:25,163 ERROR L335 CfgBuilder]: Unexpected successor node of atomic block begin: L53 is neither atomic block end nor a sink node. [2021-11-23 01:21:25,164 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 01:21:25,169 INFO L158 Benchmark]: Toolchain (without parser) took 1015.40ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 51.6MB in the beginning and 59.9MB in the end (delta: -8.4MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2021-11-23 01:21:25,171 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 88.1MB. Free memory is still 68.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:21:25,172 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.29ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 51.3MB in the beginning and 81.7MB in the end (delta: -30.4MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2021-11-23 01:21:25,175 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.88ms. Allocated memory is still 107.0MB. Free memory was 81.5MB in the beginning and 79.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:21:25,176 INFO L158 Benchmark]: Boogie Preprocessor took 32.97ms. Allocated memory is still 107.0MB. Free memory was 79.9MB in the beginning and 78.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:21:25,177 INFO L158 Benchmark]: RCFGBuilder took 626.43ms. Allocated memory is still 107.0MB. Free memory was 78.4MB in the beginning and 59.9MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-23 01:21:25,180 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 88.1MB. Free memory is still 68.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.29ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 51.3MB in the beginning and 81.7MB in the end (delta: -30.4MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.88ms. Allocated memory is still 107.0MB. Free memory was 81.5MB in the beginning and 79.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.97ms. Allocated memory is still 107.0MB. Free memory was 79.9MB in the beginning and 78.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 626.43ms. Allocated memory is still 107.0MB. Free memory was 78.4MB in the beginning and 59.9MB in the end (delta: 18.5MB). 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:304) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 01:21:25,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-send-receive.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 238e609d3671ff2de494998b0abc6a14651375b5eb423e7b66fc3d987b466268 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:21:27,699 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:21:27,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:21:27,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:21:27,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:21:27,769 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:21:27,771 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:21:27,775 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:21:27,779 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:21:27,786 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:21:27,791 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:21:27,793 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:21:27,793 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:21:27,796 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:21:27,798 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:21:27,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:21:27,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:21:27,807 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:21:27,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:21:27,817 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:21:27,819 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:21:27,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:21:27,824 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:21:27,826 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:21:27,833 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:21:27,833 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:21:27,834 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:21:27,836 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:21:27,837 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:21:27,838 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:21:27,838 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:21:27,839 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:21:27,841 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:21:27,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:21:27,844 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:21:27,844 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:21:27,845 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:21:27,845 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:21:27,857 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:21:27,859 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:21:27,860 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:21:27,861 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2021-11-23 01:21:27,910 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:21:27,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:21:27,911 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:21:27,912 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:21:27,913 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:21:27,913 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:21:27,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:21:27,914 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:21:27,914 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:21:27,914 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:21:27,915 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:21:27,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:21:27,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:21:27,916 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 01:21:27,916 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 01:21:27,916 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 01:21:27,917 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:21:27,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:21:27,917 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:21:27,917 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:21:27,917 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:21:27,918 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:21:27,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:21:27,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:21:27,918 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:21:27,919 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:21:27,919 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:21:27,919 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 01:21:27,919 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 01:21:27,919 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:21:27,920 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 01:21:27,920 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 01:21:27,920 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_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 238e609d3671ff2de494998b0abc6a14651375b5eb423e7b66fc3d987b466268 [2021-11-23 01:21:28,344 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:21:28,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:21:28,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:21:28,382 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:21:28,383 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:21:28,386 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/weaver/popl20-send-receive.wvr.c [2021-11-23 01:21:28,464 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ/data/1a990bc47/eaa24eb2fbea4b11bacf07bfaf11046a/FLAG7684c9ccf [2021-11-23 01:21:29,067 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:21:29,073 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/sv-benchmarks/c/weaver/popl20-send-receive.wvr.c [2021-11-23 01:21:29,081 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ/data/1a990bc47/eaa24eb2fbea4b11bacf07bfaf11046a/FLAG7684c9ccf [2021-11-23 01:21:29,429 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ/data/1a990bc47/eaa24eb2fbea4b11bacf07bfaf11046a [2021-11-23 01:21:29,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:21:29,435 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:21:29,443 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:21:29,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:21:29,447 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:21:29,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:21:29" (1/1) ... [2021-11-23 01:21:29,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56db2e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:29, skipping insertion in model container [2021-11-23 01:21:29,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:21:29" (1/1) ... [2021-11-23 01:21:29,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:21:29,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:21:29,685 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_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/sv-benchmarks/c/weaver/popl20-send-receive.wvr.c[3107,3120] [2021-11-23 01:21:29,711 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:21:29,749 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-23 01:21:29,774 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:21:29,788 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_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/sv-benchmarks/c/weaver/popl20-send-receive.wvr.c[3107,3120] [2021-11-23 01:21:29,792 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:21:29,797 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:21:29,821 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_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/sv-benchmarks/c/weaver/popl20-send-receive.wvr.c[3107,3120] [2021-11-23 01:21:29,825 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:21:29,841 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:21:29,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:29 WrapperNode [2021-11-23 01:21:29,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:21:29,843 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:21:29,843 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:21:29,843 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:21:29,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:29" (1/1) ... [2021-11-23 01:21:29,861 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:29" (1/1) ... [2021-11-23 01:21:29,896 INFO L137 Inliner]: procedures = 27, calls = 52, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 87 [2021-11-23 01:21:29,897 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:21:29,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:21:29,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:21:29,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:21:29,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:29" (1/1) ... [2021-11-23 01:21:29,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:29" (1/1) ... [2021-11-23 01:21:29,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:29" (1/1) ... [2021-11-23 01:21:29,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:29" (1/1) ... [2021-11-23 01:21:29,935 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:29" (1/1) ... [2021-11-23 01:21:29,954 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:29" (1/1) ... [2021-11-23 01:21:29,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:29" (1/1) ... [2021-11-23 01:21:29,959 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:21:29,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:21:29,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:21:29,960 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:21:29,961 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:29" (1/1) ... [2021-11-23 01:21:29,974 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:21:29,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:21:30,009 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:21:30,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:21:30,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:21:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 01:21:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 01:21:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 01:21:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-23 01:21:30,071 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-23 01:21:30,071 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-23 01:21:30,072 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-23 01:21:30,072 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-23 01:21:30,072 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-23 01:21:30,072 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 01:21:30,072 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 01:21:30,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 01:21:30,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 01:21:30,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 01:21:30,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:21:30,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:21:30,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 01:21:30,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 01:21:30,074 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 01:21:30,202 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:21:30,203 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:21:30,574 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:21:30,705 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:21:30,705 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-23 01:21:30,706 ERROR L335 CfgBuilder]: Unexpected successor node of atomic block begin: L53 is neither atomic block end nor a sink node. [2021-11-23 01:21:30,706 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 01:21:30,713 INFO L158 Benchmark]: Toolchain (without parser) took 1275.97ms. Allocated memory is still 69.2MB. Free memory was 48.8MB in the beginning and 25.3MB in the end (delta: 23.6MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2021-11-23 01:21:30,714 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 69.2MB. Free memory is still 50.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:21:30,715 INFO L158 Benchmark]: CACSL2BoogieTranslator took 399.12ms. Allocated memory is still 69.2MB. Free memory was 48.7MB in the beginning and 49.5MB in the end (delta: -841.7kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 01:21:30,717 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.16ms. Allocated memory is still 69.2MB. Free memory was 49.5MB in the beginning and 47.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:21:30,717 INFO L158 Benchmark]: Boogie Preprocessor took 61.18ms. Allocated memory is still 69.2MB. Free memory was 47.9MB in the beginning and 46.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:21:30,718 INFO L158 Benchmark]: RCFGBuilder took 750.32ms. Allocated memory is still 69.2MB. Free memory was 46.2MB in the beginning and 25.3MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-23 01:21:30,722 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 69.2MB. Free memory is still 50.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 399.12ms. Allocated memory is still 69.2MB. Free memory was 48.7MB in the beginning and 49.5MB in the end (delta: -841.7kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.16ms. Allocated memory is still 69.2MB. Free memory was 49.5MB in the beginning and 47.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 61.18ms. Allocated memory is still 69.2MB. Free memory was 47.9MB in the beginning and 46.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 750.32ms. Allocated memory is still 69.2MB. Free memory was 46.2MB in the beginning and 25.3MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block? de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:304) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 01:21:30,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_449145cb-0117-4e88-9e9e-2a7f1b71bcbe/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block?