./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-send-receive.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/bin/ukojak-pZX7IvK2PQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-send-receive.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/bin/ukojak-pZX7IvK2PQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 238e609d3671ff2de494998b0abc6a14651375b5eb423e7b66fc3d987b466268 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 18:04:35,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 18:04:35,887 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 18:04:35,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 18:04:35,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 18:04:35,919 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 18:04:35,921 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 18:04:35,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 18:04:35,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 18:04:35,932 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 18:04:35,934 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 18:04:35,936 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 18:04:35,936 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 18:04:35,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 18:04:35,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 18:04:35,944 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 18:04:35,945 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 18:04:35,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 18:04:35,947 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 18:04:35,948 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 18:04:35,950 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 18:04:35,957 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 18:04:35,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 18:04:35,959 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 18:04:35,972 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 18:04:35,973 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 18:04:35,973 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 18:04:35,974 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 18:04:35,974 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 18:04:35,975 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 18:04:35,975 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 18:04:35,976 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 18:04:35,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 18:04:35,977 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 18:04:35,978 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 18:04:35,979 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 18:04:35,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 18:04:35,979 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 18:04:35,980 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 18:04:35,981 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 18:04:35,981 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 18:04:35,987 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-32bit-Kojak_Default.epf [2022-11-20 18:04:36,009 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 18:04:36,009 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 18:04:36,010 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 18:04:36,010 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 18:04:36,010 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 18:04:36,011 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 18:04:36,011 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 18:04:36,011 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 18:04:36,011 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 18:04:36,011 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 18:04:36,012 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 18:04:36,012 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 18:04:36,012 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 18:04:36,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 18:04:36,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 18:04:36,012 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 18:04:36,013 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 18:04:36,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 18:04:36,013 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 18:04:36,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 18:04:36,013 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 18:04:36,013 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 18:04:36,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 18:04:36,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:04:36,014 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 18:04:36,014 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 18:04:36,014 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 18:04:36,015 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 18:04:36,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 18:04:36,015 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 18:04:36,015 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_02ba8e62-19c5-48b7-863b-4f349b1c431a/bin/ukojak-pZX7IvK2PQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 238e609d3671ff2de494998b0abc6a14651375b5eb423e7b66fc3d987b466268 [2022-11-20 18:04:36,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 18:04:36,278 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 18:04:36,281 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 18:04:36,283 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 18:04:36,286 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 18:04:36,288 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/weaver/popl20-send-receive.wvr.c [2022-11-20 18:04:39,375 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 18:04:39,611 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 18:04:39,612 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/sv-benchmarks/c/weaver/popl20-send-receive.wvr.c [2022-11-20 18:04:39,620 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/bin/ukojak-pZX7IvK2PQ/data/564c0d19f/87be9c8aa5b749abae464441e6a2672c/FLAG6fb1eece2 [2022-11-20 18:04:39,640 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/bin/ukojak-pZX7IvK2PQ/data/564c0d19f/87be9c8aa5b749abae464441e6a2672c [2022-11-20 18:04:39,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 18:04:39,649 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 18:04:39,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 18:04:39,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 18:04:39,656 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 18:04:39,657 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:04:39" (1/1) ... [2022-11-20 18:04:39,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26da0877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:39, skipping insertion in model container [2022-11-20 18:04:39,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:04:39" (1/1) ... [2022-11-20 18:04:39,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 18:04:39,696 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 18:04:39,949 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/sv-benchmarks/c/weaver/popl20-send-receive.wvr.c[3107,3120] [2022-11-20 18:04:39,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:04:39,975 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 18:04:40,017 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/sv-benchmarks/c/weaver/popl20-send-receive.wvr.c[3107,3120] [2022-11-20 18:04:40,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:04:40,051 INFO L208 MainTranslator]: Completed translation [2022-11-20 18:04:40,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:40 WrapperNode [2022-11-20 18:04:40,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 18:04:40,057 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 18:04:40,057 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 18:04:40,058 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 18:04:40,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:40" (1/1) ... [2022-11-20 18:04:40,087 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:40" (1/1) ... [2022-11-20 18:04:40,106 INFO L138 Inliner]: procedures = 25, calls = 52, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 92 [2022-11-20 18:04:40,106 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 18:04:40,107 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 18:04:40,107 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 18:04:40,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 18:04:40,114 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:40" (1/1) ... [2022-11-20 18:04:40,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:40" (1/1) ... [2022-11-20 18:04:40,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:40" (1/1) ... [2022-11-20 18:04:40,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:40" (1/1) ... [2022-11-20 18:04:40,125 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:40" (1/1) ... [2022-11-20 18:04:40,137 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:40" (1/1) ... [2022-11-20 18:04:40,139 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:40" (1/1) ... [2022-11-20 18:04:40,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:40" (1/1) ... [2022-11-20 18:04:40,143 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 18:04:40,144 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 18:04:40,145 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 18:04:40,145 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 18:04:40,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:40" (1/1) ... [2022-11-20 18:04:40,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:04:40,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 18:04:40,192 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 18:04:40,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 18:04:40,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 18:04:40,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 18:04:40,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 18:04:40,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 18:04:40,236 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 18:04:40,236 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 18:04:40,236 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 18:04:40,236 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 18:04:40,236 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 18:04:40,236 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 18:04:40,237 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 18:04:40,237 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 18:04:40,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 18:04:40,237 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 18:04:40,237 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 18:04:40,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 18:04:40,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 18:04:40,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 18:04:40,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 18:04:40,239 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 18:04:40,344 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 18:04:40,346 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 18:04:40,690 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 18:04:41,120 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 18:04:41,120 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 18:04:41,121 ERROR L334 CfgBuilder]: Unexpected successor node of atomic block begin: L53 is neither atomic block end nor a sink node. [2022-11-20 18:04:41,122 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-20 18:04:41,130 INFO L158 Benchmark]: Toolchain (without parser) took 1479.84ms. Allocated memory was 157.3MB in the beginning and 199.2MB in the end (delta: 41.9MB). Free memory was 115.9MB in the beginning and 168.3MB in the end (delta: -52.4MB). Peak memory consumption was 59.3MB. Max. memory is 16.1GB. [2022-11-20 18:04:41,131 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 104.9MB. Free memory is still 55.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 18:04:41,132 INFO L158 Benchmark]: CACSL2BoogieTranslator took 401.72ms. Allocated memory is still 157.3MB. Free memory was 115.3MB in the beginning and 104.2MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 18:04:41,133 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.66ms. Allocated memory is still 157.3MB. Free memory was 104.2MB in the beginning and 101.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:04:41,134 INFO L158 Benchmark]: Boogie Preprocessor took 36.81ms. Allocated memory is still 157.3MB. Free memory was 101.8MB in the beginning and 100.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:04:41,135 INFO L158 Benchmark]: RCFGBuilder took 983.61ms. Allocated memory was 157.3MB in the beginning and 199.2MB in the end (delta: 41.9MB). Free memory was 100.6MB in the beginning and 168.3MB in the end (delta: -67.7MB). Peak memory consumption was 44.6MB. Max. memory is 16.1GB. [2022-11-20 18:04:41,144 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 104.9MB. Free memory is still 55.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 401.72ms. Allocated memory is still 157.3MB. Free memory was 115.3MB in the beginning and 104.2MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.66ms. Allocated memory is still 157.3MB. Free memory was 104.2MB in the beginning and 101.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.81ms. Allocated memory is still 157.3MB. Free memory was 101.8MB in the beginning and 100.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 983.61ms. Allocated memory was 157.3MB in the beginning and 199.2MB in the end (delta: 41.9MB). Free memory was 100.6MB in the beginning and 168.3MB in the end (delta: -67.7MB). Peak memory consumption was 44.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block? de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:303) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-20 18:04:41,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/bin/ukojak-pZX7IvK2PQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-send-receive.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/bin/ukojak-pZX7IvK2PQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 238e609d3671ff2de494998b0abc6a14651375b5eb423e7b66fc3d987b466268 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 18:04:43,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 18:04:43,693 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 18:04:43,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 18:04:43,717 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 18:04:43,718 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 18:04:43,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 18:04:43,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 18:04:43,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 18:04:43,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 18:04:43,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 18:04:43,727 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 18:04:43,727 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 18:04:43,729 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 18:04:43,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 18:04:43,731 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 18:04:43,732 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 18:04:43,733 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 18:04:43,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 18:04:43,738 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 18:04:43,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 18:04:43,744 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 18:04:43,746 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 18:04:43,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 18:04:43,761 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 18:04:43,762 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 18:04:43,762 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 18:04:43,763 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 18:04:43,763 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 18:04:43,764 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 18:04:43,765 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 18:04:43,765 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 18:04:43,766 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 18:04:43,767 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 18:04:43,784 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 18:04:43,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 18:04:43,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 18:04:43,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 18:04:43,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 18:04:43,793 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 18:04:43,794 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 18:04:43,798 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf [2022-11-20 18:04:43,842 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 18:04:43,844 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 18:04:43,846 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 18:04:43,847 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 18:04:43,847 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 18:04:43,848 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 18:04:43,848 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 18:04:43,848 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 18:04:43,848 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 18:04:43,849 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 18:04:43,850 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 18:04:43,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 18:04:43,850 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 18:04:43,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 18:04:43,851 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 18:04:43,851 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 18:04:43,851 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 18:04:43,851 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 18:04:43,851 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 18:04:43,852 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 18:04:43,852 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 18:04:43,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 18:04:43,852 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 18:04:43,853 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 18:04:43,853 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 18:04:43,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:04:43,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 18:04:43,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 18:04:43,854 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 18:04:43,855 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-20 18:04:43,855 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 18:04:43,855 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 18:04:43,855 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2022-11-20 18:04:43,856 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 18:04:43,856 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_02ba8e62-19c5-48b7-863b-4f349b1c431a/bin/ukojak-pZX7IvK2PQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 238e609d3671ff2de494998b0abc6a14651375b5eb423e7b66fc3d987b466268 [2022-11-20 18:04:44,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 18:04:44,287 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 18:04:44,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 18:04:44,292 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 18:04:44,293 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 18:04:44,294 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/weaver/popl20-send-receive.wvr.c [2022-11-20 18:04:47,488 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 18:04:47,740 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 18:04:47,740 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/sv-benchmarks/c/weaver/popl20-send-receive.wvr.c [2022-11-20 18:04:47,749 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/bin/ukojak-pZX7IvK2PQ/data/cadb04f65/d48f3d96d9aa42fe887035106cf8c356/FLAGd651a6b08 [2022-11-20 18:04:47,763 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/bin/ukojak-pZX7IvK2PQ/data/cadb04f65/d48f3d96d9aa42fe887035106cf8c356 [2022-11-20 18:04:47,766 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 18:04:47,767 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 18:04:47,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 18:04:47,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 18:04:47,782 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 18:04:47,783 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:04:47" (1/1) ... [2022-11-20 18:04:47,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24b4061f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:47, skipping insertion in model container [2022-11-20 18:04:47,785 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:04:47" (1/1) ... [2022-11-20 18:04:47,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 18:04:47,839 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 18:04:48,022 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/sv-benchmarks/c/weaver/popl20-send-receive.wvr.c[3107,3120] [2022-11-20 18:04:48,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:04:48,042 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 18:04:48,046 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 18:04:48,063 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/sv-benchmarks/c/weaver/popl20-send-receive.wvr.c[3107,3120] [2022-11-20 18:04:48,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:04:48,073 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 18:04:48,111 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/sv-benchmarks/c/weaver/popl20-send-receive.wvr.c[3107,3120] [2022-11-20 18:04:48,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:04:48,130 INFO L208 MainTranslator]: Completed translation [2022-11-20 18:04:48,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:48 WrapperNode [2022-11-20 18:04:48,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 18:04:48,132 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 18:04:48,132 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 18:04:48,132 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 18:04:48,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:48" (1/1) ... [2022-11-20 18:04:48,150 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:48" (1/1) ... [2022-11-20 18:04:48,171 INFO L138 Inliner]: procedures = 27, calls = 52, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 89 [2022-11-20 18:04:48,171 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 18:04:48,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 18:04:48,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 18:04:48,172 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 18:04:48,182 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:48" (1/1) ... [2022-11-20 18:04:48,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:48" (1/1) ... [2022-11-20 18:04:48,186 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:48" (1/1) ... [2022-11-20 18:04:48,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:48" (1/1) ... [2022-11-20 18:04:48,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:48" (1/1) ... [2022-11-20 18:04:48,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:48" (1/1) ... [2022-11-20 18:04:48,222 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:48" (1/1) ... [2022-11-20 18:04:48,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:48" (1/1) ... [2022-11-20 18:04:48,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 18:04:48,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 18:04:48,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 18:04:48,236 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 18:04:48,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:48" (1/1) ... [2022-11-20 18:04:48,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:04:48,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 18:04:48,274 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 18:04:48,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 18:04:48,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 18:04:48,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 18:04:48,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 18:04:48,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 18:04:48,309 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 18:04:48,309 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 18:04:48,310 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 18:04:48,310 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 18:04:48,310 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 18:04:48,310 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 18:04:48,310 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 18:04:48,310 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 18:04:48,311 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 18:04:48,311 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 18:04:48,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 18:04:48,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 18:04:48,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 18:04:48,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 18:04:48,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 18:04:48,313 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 18:04:48,429 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 18:04:48,431 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 18:04:48,908 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 18:04:49,329 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 18:04:49,330 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 18:04:49,331 ERROR L334 CfgBuilder]: Unexpected successor node of atomic block begin: L53 is neither atomic block end nor a sink node. [2022-11-20 18:04:49,332 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-20 18:04:49,339 INFO L158 Benchmark]: Toolchain (without parser) took 1570.50ms. Allocated memory was 86.0MB in the beginning and 117.4MB in the end (delta: 31.5MB). Free memory was 42.5MB in the beginning and 75.3MB in the end (delta: -32.9MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2022-11-20 18:04:49,339 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 86.0MB. Free memory is still 63.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 18:04:49,340 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.56ms. Allocated memory is still 86.0MB. Free memory was 42.3MB in the beginning and 53.9MB in the end (delta: -11.6MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2022-11-20 18:04:49,341 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.31ms. Allocated memory is still 86.0MB. Free memory was 53.9MB in the beginning and 52.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:04:49,342 INFO L158 Benchmark]: Boogie Preprocessor took 62.68ms. Allocated memory is still 86.0MB. Free memory was 52.1MB in the beginning and 50.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:04:49,343 INFO L158 Benchmark]: RCFGBuilder took 1101.56ms. Allocated memory was 86.0MB in the beginning and 117.4MB in the end (delta: 31.5MB). Free memory was 50.3MB in the beginning and 75.3MB in the end (delta: -25.0MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2022-11-20 18:04:49,351 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 86.0MB. Free memory is still 63.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 352.56ms. Allocated memory is still 86.0MB. Free memory was 42.3MB in the beginning and 53.9MB in the end (delta: -11.6MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.31ms. Allocated memory is still 86.0MB. Free memory was 53.9MB in the beginning and 52.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.68ms. Allocated memory is still 86.0MB. Free memory was 52.1MB in the beginning and 50.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1101.56ms. Allocated memory was 86.0MB in the beginning and 117.4MB in the end (delta: 31.5MB). Free memory was 50.3MB in the beginning and 75.3MB in the end (delta: -25.0MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block? de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:303) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-20 18:04:49,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ba8e62-19c5-48b7-863b-4f349b1c431a/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with 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?