./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-send-receive-alt.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_fd588324-9c5e-4447-8981-fbd1f8d246f6/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd588324-9c5e-4447-8981-fbd1f8d246f6/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_fd588324-9c5e-4447-8981-fbd1f8d246f6/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd588324-9c5e-4447-8981-fbd1f8d246f6/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-send-receive-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd588324-9c5e-4447-8981-fbd1f8d246f6/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_fd588324-9c5e-4447-8981-fbd1f8d246f6/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 d8915194b3978f524e3b82313f6c905aed9b5c215c3d66b411e7857ee0b93981 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:31:58,658 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:31:58,661 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:31:58,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:31:58,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:31:58,694 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:31:58,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:31:58,699 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:31:58,701 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:31:58,702 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:31:58,703 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:31:58,705 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:31:58,706 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:31:58,707 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:31:58,709 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:31:58,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:31:58,713 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:31:58,714 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:31:58,717 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:31:58,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:31:58,722 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:31:58,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:31:58,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:31:58,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:31:58,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:31:58,731 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:31:58,732 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:31:58,733 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:31:58,734 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:31:58,735 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:31:58,736 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:31:58,737 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:31:58,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:31:58,740 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:31:58,741 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:31:58,742 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:31:58,743 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:31:58,743 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:31:58,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:31:58,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:31:58,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:31:58,747 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd588324-9c5e-4447-8981-fbd1f8d246f6/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:31:58,771 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:31:58,771 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:31:58,772 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:31:58,773 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:31:58,773 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:31:58,774 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:31:58,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:31:58,774 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:31:58,775 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:31:58,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:31:58,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:31:58,776 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:31:58,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:31:58,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:31:58,777 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:31:58,777 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:31:58,777 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:31:58,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:31:58,778 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:31:58,778 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:31:58,779 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:31:58,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:31:58,779 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:31:58,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:31:58,780 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:31:58,780 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:31:58,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:31:58,781 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:31:58,781 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_fd588324-9c5e-4447-8981-fbd1f8d246f6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd588324-9c5e-4447-8981-fbd1f8d246f6/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8915194b3978f524e3b82313f6c905aed9b5c215c3d66b411e7857ee0b93981 [2021-11-23 01:31:59,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:31:59,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:31:59,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:31:59,109 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:31:59,110 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:31:59,112 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd588324-9c5e-4447-8981-fbd1f8d246f6/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/weaver/popl20-send-receive-alt.wvr.c [2021-11-23 01:31:59,187 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd588324-9c5e-4447-8981-fbd1f8d246f6/bin/ukojak-LBtLqBUTdQ/data/743788901/879a67ba52b74de8a3fa7f2c53d7e1e3/FLAGa197b43b4 [2021-11-23 01:31:59,752 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:31:59,753 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd588324-9c5e-4447-8981-fbd1f8d246f6/sv-benchmarks/c/weaver/popl20-send-receive-alt.wvr.c [2021-11-23 01:31:59,764 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd588324-9c5e-4447-8981-fbd1f8d246f6/bin/ukojak-LBtLqBUTdQ/data/743788901/879a67ba52b74de8a3fa7f2c53d7e1e3/FLAGa197b43b4 [2021-11-23 01:32:00,203 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd588324-9c5e-4447-8981-fbd1f8d246f6/bin/ukojak-LBtLqBUTdQ/data/743788901/879a67ba52b74de8a3fa7f2c53d7e1e3 [2021-11-23 01:32:00,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:32:00,209 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:32:00,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:32:00,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:32:00,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:32:00,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:32:00" (1/1) ... [2021-11-23 01:32:00,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c6b5114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:00, skipping insertion in model container [2021-11-23 01:32:00,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:32:00" (1/1) ... [2021-11-23 01:32:00,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:32:00,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:32:00,460 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_fd588324-9c5e-4447-8981-fbd1f8d246f6/sv-benchmarks/c/weaver/popl20-send-receive-alt.wvr.c[2650,2663] [2021-11-23 01:32:00,468 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:32:00,476 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:32:00,498 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_fd588324-9c5e-4447-8981-fbd1f8d246f6/sv-benchmarks/c/weaver/popl20-send-receive-alt.wvr.c[2650,2663] [2021-11-23 01:32:00,502 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:32:00,516 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:32:00,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:00 WrapperNode [2021-11-23 01:32:00,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:32:00,518 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:32:00,518 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:32:00,518 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:32:00,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:00" (1/1) ... [2021-11-23 01:32:00,535 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:00" (1/1) ... [2021-11-23 01:32:00,567 INFO L137 Inliner]: procedures = 24, calls = 37, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 76 [2021-11-23 01:32:00,568 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:32:00,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:32:00,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:32:00,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:32:00,579 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:00" (1/1) ... [2021-11-23 01:32:00,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:00" (1/1) ... [2021-11-23 01:32:00,582 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:00" (1/1) ... [2021-11-23 01:32:00,582 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:00" (1/1) ... [2021-11-23 01:32:00,589 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:00" (1/1) ... [2021-11-23 01:32:00,594 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:00" (1/1) ... [2021-11-23 01:32:00,595 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:00" (1/1) ... [2021-11-23 01:32:00,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:32:00,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:32:00,600 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:32:00,600 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:32:00,601 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:00" (1/1) ... [2021-11-23 01:32:00,608 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:32:00,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd588324-9c5e-4447-8981-fbd1f8d246f6/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:32:00,637 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd588324-9c5e-4447-8981-fbd1f8d246f6/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:32:00,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd588324-9c5e-4447-8981-fbd1f8d246f6/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:32:00,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:32:00,694 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-23 01:32:00,694 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-23 01:32:00,694 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-23 01:32:00,694 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-23 01:32:00,695 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 01:32:00,695 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 01:32:00,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:32:00,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 01:32:00,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 01:32:00,696 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 01:32:00,696 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 01:32:00,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 01:32:00,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:32:00,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:32:00,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 01:32:00,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 01:32:00,698 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 01:32:00,839 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:32:00,841 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:32:01,174 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:32:01,311 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:32:01,311 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-23 01:32:01,312 ERROR L335 CfgBuilder]: Unexpected successor node of atomic block begin: L49 is neither atomic block end nor a sink node. [2021-11-23 01:32:01,315 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 01:32:01,321 INFO L158 Benchmark]: Toolchain (without parser) took 1111.57ms. Allocated memory is still 104.9MB. Free memory was 72.1MB in the beginning and 57.8MB in the end (delta: 14.3MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2021-11-23 01:32:01,325 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 104.9MB. Free memory is still 60.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:32:01,327 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.86ms. Allocated memory is still 104.9MB. Free memory was 71.9MB in the beginning and 77.9MB in the end (delta: -6.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:32:01,328 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.03ms. Allocated memory is still 104.9MB. Free memory was 77.9MB in the beginning and 76.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:32:01,330 INFO L158 Benchmark]: Boogie Preprocessor took 29.19ms. Allocated memory is still 104.9MB. Free memory was 76.3MB in the beginning and 74.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:32:01,331 INFO L158 Benchmark]: RCFGBuilder took 719.96ms. Allocated memory is still 104.9MB. Free memory was 74.8MB in the beginning and 57.8MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-23 01:32:01,336 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 104.9MB. Free memory is still 60.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 304.86ms. Allocated memory is still 104.9MB. Free memory was 71.9MB in the beginning and 77.9MB in the end (delta: -6.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.03ms. Allocated memory is still 104.9MB. Free memory was 77.9MB in the beginning and 76.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.19ms. Allocated memory is still 104.9MB. Free memory was 76.3MB in the beginning and 74.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 719.96ms. Allocated memory is still 104.9MB. Free memory was 74.8MB in the beginning and 57.8MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. 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 01:32:01,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd588324-9c5e-4447-8981-fbd1f8d246f6/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_fd588324-9c5e-4447-8981-fbd1f8d246f6/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd588324-9c5e-4447-8981-fbd1f8d246f6/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_fd588324-9c5e-4447-8981-fbd1f8d246f6/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd588324-9c5e-4447-8981-fbd1f8d246f6/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-send-receive-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd588324-9c5e-4447-8981-fbd1f8d246f6/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_fd588324-9c5e-4447-8981-fbd1f8d246f6/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 d8915194b3978f524e3b82313f6c905aed9b5c215c3d66b411e7857ee0b93981 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:32:03,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:32:03,955 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:32:04,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:32:04,007 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:32:04,011 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:32:04,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:32:04,019 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:32:04,022 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:32:04,028 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:32:04,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:32:04,034 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:32:04,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:32:04,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:32:04,039 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:32:04,043 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:32:04,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:32:04,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:32:04,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:32:04,057 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:32:04,059 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:32:04,060 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:32:04,063 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:32:04,066 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:32:04,076 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:32:04,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:32:04,077 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:32:04,079 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:32:04,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:32:04,081 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:32:04,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:32:04,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:32:04,085 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:32:04,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:32:04,087 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:32:04,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:32:04,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:32:04,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:32:04,090 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:32:04,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:32:04,093 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:32:04,098 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd588324-9c5e-4447-8981-fbd1f8d246f6/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2021-11-23 01:32:04,140 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:32:04,140 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:32:04,141 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:32:04,141 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:32:04,143 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:32:04,143 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:32:04,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:32:04,144 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:32:04,144 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:32:04,144 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:32:04,145 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:32:04,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:32:04,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:32:04,146 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 01:32:04,146 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 01:32:04,147 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 01:32:04,147 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:32:04,147 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:32:04,147 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:32:04,147 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:32:04,148 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:32:04,148 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:32:04,148 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:32:04,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:32:04,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:32:04,149 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:32:04,149 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:32:04,149 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 01:32:04,149 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 01:32:04,150 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:32:04,150 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 01:32:04,150 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 01:32:04,151 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_fd588324-9c5e-4447-8981-fbd1f8d246f6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd588324-9c5e-4447-8981-fbd1f8d246f6/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8915194b3978f524e3b82313f6c905aed9b5c215c3d66b411e7857ee0b93981 [2021-11-23 01:32:04,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:32:04,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:32:04,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:32:04,634 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:32:04,636 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:32:04,637 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd588324-9c5e-4447-8981-fbd1f8d246f6/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/weaver/popl20-send-receive-alt.wvr.c [2021-11-23 01:32:04,719 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd588324-9c5e-4447-8981-fbd1f8d246f6/bin/ukojak-LBtLqBUTdQ/data/96c9a3c2c/84028a67aab344cd8037d6555f46c6fc/FLAG373406653 [2021-11-23 01:32:05,280 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:32:05,280 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd588324-9c5e-4447-8981-fbd1f8d246f6/sv-benchmarks/c/weaver/popl20-send-receive-alt.wvr.c [2021-11-23 01:32:05,291 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd588324-9c5e-4447-8981-fbd1f8d246f6/bin/ukojak-LBtLqBUTdQ/data/96c9a3c2c/84028a67aab344cd8037d6555f46c6fc/FLAG373406653 [2021-11-23 01:32:05,621 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd588324-9c5e-4447-8981-fbd1f8d246f6/bin/ukojak-LBtLqBUTdQ/data/96c9a3c2c/84028a67aab344cd8037d6555f46c6fc [2021-11-23 01:32:05,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:32:05,628 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:32:05,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:32:05,632 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:32:05,635 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:32:05,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:32:05" (1/1) ... [2021-11-23 01:32:05,638 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22607feb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:05, skipping insertion in model container [2021-11-23 01:32:05,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:32:05" (1/1) ... [2021-11-23 01:32:05,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:32:05,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:32:05,915 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_fd588324-9c5e-4447-8981-fbd1f8d246f6/sv-benchmarks/c/weaver/popl20-send-receive-alt.wvr.c[2650,2663] [2021-11-23 01:32:05,946 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:32:05,971 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-23 01:32:05,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:32:06,000 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_fd588324-9c5e-4447-8981-fbd1f8d246f6/sv-benchmarks/c/weaver/popl20-send-receive-alt.wvr.c[2650,2663] [2021-11-23 01:32:06,004 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:32:06,008 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:32:06,032 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_fd588324-9c5e-4447-8981-fbd1f8d246f6/sv-benchmarks/c/weaver/popl20-send-receive-alt.wvr.c[2650,2663] [2021-11-23 01:32:06,036 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:32:06,052 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:32:06,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:06 WrapperNode [2021-11-23 01:32:06,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:32:06,054 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:32:06,054 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:32:06,054 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:32:06,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:06" (1/1) ... [2021-11-23 01:32:06,090 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:06" (1/1) ... [2021-11-23 01:32:06,109 INFO L137 Inliner]: procedures = 26, calls = 37, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 73 [2021-11-23 01:32:06,109 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:32:06,110 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:32:06,110 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:32:06,111 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:32:06,119 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:06" (1/1) ... [2021-11-23 01:32:06,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:06" (1/1) ... [2021-11-23 01:32:06,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:06" (1/1) ... [2021-11-23 01:32:06,124 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:06" (1/1) ... [2021-11-23 01:32:06,134 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:06" (1/1) ... [2021-11-23 01:32:06,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:06" (1/1) ... [2021-11-23 01:32:06,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:06" (1/1) ... [2021-11-23 01:32:06,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:32:06,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:32:06,145 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:32:06,146 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:32:06,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:06" (1/1) ... [2021-11-23 01:32:06,166 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:32:06,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd588324-9c5e-4447-8981-fbd1f8d246f6/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:32:06,186 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd588324-9c5e-4447-8981-fbd1f8d246f6/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:32:06,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd588324-9c5e-4447-8981-fbd1f8d246f6/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:32:06,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:32:06,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 01:32:06,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 01:32:06,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 01:32:06,228 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-23 01:32:06,228 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-23 01:32:06,228 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-23 01:32:06,229 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-23 01:32:06,229 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 01:32:06,229 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 01:32:06,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 01:32:06,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 01:32:06,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 01:32:06,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:32:06,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:32:06,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 01:32:06,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 01:32:06,231 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 01:32:06,339 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:32:06,341 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:32:06,647 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:32:06,855 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:32:06,856 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-23 01:32:06,857 ERROR L335 CfgBuilder]: Unexpected successor node of atomic block begin: L49 is neither atomic block end nor a sink node. [2021-11-23 01:32:06,858 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 01:32:06,866 INFO L158 Benchmark]: Toolchain (without parser) took 1237.98ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 34.2MB in the beginning and 43.2MB in the end (delta: -9.0MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2021-11-23 01:32:06,868 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 56.6MB. Free memory was 37.8MB in the beginning and 37.8MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:32:06,870 INFO L158 Benchmark]: CACSL2BoogieTranslator took 421.63ms. Allocated memory is still 56.6MB. Free memory was 34.0MB in the beginning and 36.5MB in the end (delta: -2.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 01:32:06,871 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.83ms. Allocated memory is still 56.6MB. Free memory was 36.5MB in the beginning and 34.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:32:06,872 INFO L158 Benchmark]: Boogie Preprocessor took 34.33ms. Allocated memory is still 56.6MB. Free memory was 34.8MB in the beginning and 33.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:32:06,873 INFO L158 Benchmark]: RCFGBuilder took 719.29ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 33.1MB in the beginning and 43.2MB in the end (delta: -10.1MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2021-11-23 01:32:06,881 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 56.6MB. Free memory was 37.8MB in the beginning and 37.8MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 421.63ms. Allocated memory is still 56.6MB. Free memory was 34.0MB in the beginning and 36.5MB in the end (delta: -2.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.83ms. Allocated memory is still 56.6MB. Free memory was 36.5MB in the beginning and 34.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.33ms. Allocated memory is still 56.6MB. Free memory was 34.8MB in the beginning and 33.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 719.29ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 33.1MB in the beginning and 43.2MB in the end (delta: -10.1MB). Peak memory consumption was 14.4MB. 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:304) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 01:32:06,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd588324-9c5e-4447-8981-fbd1f8d246f6/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?