./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-two-queue.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_fd99d44c-6191-44f1-be57-b5dd6f58daf7/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd99d44c-6191-44f1-be57-b5dd6f58daf7/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd99d44c-6191-44f1-be57-b5dd6f58daf7/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd99d44c-6191-44f1-be57-b5dd6f58daf7/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-two-queue.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd99d44c-6191-44f1-be57-b5dd6f58daf7/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd99d44c-6191-44f1-be57-b5dd6f58daf7/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --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 2b29a4c23931df07495caab7fd70ec22fec28fcea21b47e1c8eb19fb44a778d8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:42:33,252 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:42:33,344 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd99d44c-6191-44f1-be57-b5dd6f58daf7/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-19 03:42:33,349 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:42:33,350 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:42:33,375 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:42:33,376 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:42:33,377 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:42:33,377 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:42:33,378 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:42:33,379 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:42:33,379 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:42:33,380 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:42:33,380 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:42:33,381 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:42:33,382 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:42:33,382 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:42:33,383 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:42:33,383 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:42:33,384 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 03:42:33,384 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:42:33,385 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:42:33,385 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:42:33,386 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:42:33,386 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:42:33,387 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:42:33,387 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:42:33,388 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:42:33,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:42:33,389 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:42:33,389 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:42:33,390 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:42:33,390 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:42:33,391 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:42:33,391 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:42:33,392 INFO L153 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_fd99d44c-6191-44f1-be57-b5dd6f58daf7/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd99d44c-6191-44f1-be57-b5dd6f58daf7/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b29a4c23931df07495caab7fd70ec22fec28fcea21b47e1c8eb19fb44a778d8 [2023-11-19 03:42:33,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:42:33,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:42:33,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:42:33,665 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:42:33,668 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:42:33,669 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd99d44c-6191-44f1-be57-b5dd6f58daf7/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/weaver/popl20-two-queue.wvr.c [2023-11-19 03:42:36,795 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:42:37,000 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:42:37,001 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd99d44c-6191-44f1-be57-b5dd6f58daf7/sv-benchmarks/c/weaver/popl20-two-queue.wvr.c [2023-11-19 03:42:37,009 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd99d44c-6191-44f1-be57-b5dd6f58daf7/bin/ukojak-verify-G8NBE6pJGL/data/a3fb47e30/39f634f547a94fdb8bf9603966da636a/FLAGeb8b54d7b [2023-11-19 03:42:37,024 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd99d44c-6191-44f1-be57-b5dd6f58daf7/bin/ukojak-verify-G8NBE6pJGL/data/a3fb47e30/39f634f547a94fdb8bf9603966da636a [2023-11-19 03:42:37,027 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:42:37,029 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:42:37,030 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:42:37,030 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:42:37,036 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:42:37,037 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:42:37" (1/1) ... [2023-11-19 03:42:37,038 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@536c867a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:37, skipping insertion in model container [2023-11-19 03:42:37,038 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:42:37" (1/1) ... [2023-11-19 03:42:37,066 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:42:37,317 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:42:37,333 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:42:37,378 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:42:37,393 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:42:37,394 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:42:37,403 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:42:37,403 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:37 WrapperNode [2023-11-19 03:42:37,403 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:42:37,405 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:42:37,405 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:42:37,405 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:42:37,413 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:37" (1/1) ... [2023-11-19 03:42:37,429 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:37" (1/1) ... [2023-11-19 03:42:37,470 INFO L138 Inliner]: procedures = 24, calls = 44, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2023-11-19 03:42:37,470 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:42:37,471 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:42:37,471 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:42:37,471 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:42:37,481 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:37" (1/1) ... [2023-11-19 03:42:37,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:37" (1/1) ... [2023-11-19 03:42:37,500 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:37" (1/1) ... [2023-11-19 03:42:37,503 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:37" (1/1) ... [2023-11-19 03:42:37,510 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:37" (1/1) ... [2023-11-19 03:42:37,543 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:37" (1/1) ... [2023-11-19 03:42:37,545 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:37" (1/1) ... [2023-11-19 03:42:37,546 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:37" (1/1) ... [2023-11-19 03:42:37,562 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:42:37,563 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:42:37,563 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:42:37,564 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:42:37,565 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:37" (1/1) ... [2023-11-19 03:42:37,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:42:37,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd99d44c-6191-44f1-be57-b5dd6f58daf7/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:42:37,605 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd99d44c-6191-44f1-be57-b5dd6f58daf7/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:42:37,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd99d44c-6191-44f1-be57-b5dd6f58daf7/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:42:37,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:42:37,647 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 03:42:37,648 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 03:42:37,648 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 03:42:37,649 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 03:42:37,649 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 03:42:37,650 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 03:42:37,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:42:37,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 03:42:37,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 03:42:37,650 INFO L130 BoogieDeclarations]: Found specification of procedure create_fresh_int_array [2023-11-19 03:42:37,651 INFO L138 BoogieDeclarations]: Found implementation of procedure create_fresh_int_array [2023-11-19 03:42:37,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 03:42:37,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 03:42:37,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 03:42:37,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:42:37,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:42:37,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 03:42:37,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:42:37,655 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 03:42:37,808 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:42:37,811 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:42:38,160 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:42:38,393 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:42:38,394 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-19 03:42:38,396 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: call #t~mem3 := read~int(~q1~0.base, ~q1~0.offset + 4 * ~q1_front~0, 4);~i~0 := #t~mem3;havoc #t~mem3;#t~post4 := ~q1_front~0;assume 1 + #t~post4 >= -2147483648;assume 1 + #t~post4 <= 2147483647;~q1_front~0 := 1 + #t~post4;havoc #t~post4;). Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:328) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:320) 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:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) 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) [2023-11-19 03:42:38,408 INFO L158 Benchmark]: Toolchain (without parser) took 1379.02ms. Allocated memory was 132.1MB in the beginning and 180.4MB in the end (delta: 48.2MB). Free memory was 76.2MB in the beginning and 116.1MB in the end (delta: -39.9MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2023-11-19 03:42:38,409 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 132.1MB. Free memory was 100.4MB in the beginning and 100.4MB in the end (delta: 24.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:42:38,410 INFO L158 Benchmark]: CACSL2BoogieTranslator took 373.74ms. Allocated memory was 132.1MB in the beginning and 180.4MB in the end (delta: 48.2MB). Free memory was 76.2MB in the beginning and 151.5MB in the end (delta: -75.4MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2023-11-19 03:42:38,411 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.23ms. Allocated memory is still 180.4MB. Free memory was 151.5MB in the beginning and 149.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:42:38,419 INFO L158 Benchmark]: Boogie Preprocessor took 91.83ms. Allocated memory is still 180.4MB. Free memory was 149.8MB in the beginning and 151.7MB in the end (delta: -1.9MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2023-11-19 03:42:38,420 INFO L158 Benchmark]: RCFGBuilder took 843.43ms. Allocated memory is still 180.4MB. Free memory was 151.7MB in the beginning and 116.1MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-19 03:42:38,424 INFO L338 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 132.1MB. Free memory was 100.4MB in the beginning and 100.4MB in the end (delta: 24.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 373.74ms. Allocated memory was 132.1MB in the beginning and 180.4MB in the end (delta: 48.2MB). Free memory was 76.2MB in the beginning and 151.5MB in the end (delta: -75.4MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.23ms. Allocated memory is still 180.4MB. Free memory was 151.5MB in the beginning and 149.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 91.83ms. Allocated memory is still 180.4MB. Free memory was 149.8MB in the beginning and 151.7MB in the end (delta: -1.9MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. * RCFGBuilder took 843.43ms. Allocated memory is still 180.4MB. Free memory was 151.7MB in the beginning and 116.1MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: call #t~mem3 := read~int(~q1~0.base, ~q1~0.offset + 4 * ~q1_front~0, 4);~i~0 := #t~mem3;havoc #t~mem3;#t~post4 := ~q1_front~0;assume 1 + #t~post4 >= -2147483648;assume 1 + #t~post4 <= 2147483647;~q1_front~0 := 1 + #t~post4;havoc #t~post4;). Is there illegal control flow (e.g. loops) within an atomic block? de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: call #t~mem3 := read~int(~q1~0.base, ~q1~0.offset + 4 * ~q1_front~0, 4);~i~0 := #t~mem3;havoc #t~mem3;#t~post4 := ~q1_front~0;assume 1 + #t~post4 >= -2147483648;assume 1 + #t~post4 <= 2147483647;~q1_front~0 := 1 + #t~post4;havoc #t~post4;). Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:328) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-19 03:42:38,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd99d44c-6191-44f1-be57-b5dd6f58daf7/bin/ukojak-verify-G8NBE6pJGL/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_fd99d44c-6191-44f1-be57-b5dd6f58daf7/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd99d44c-6191-44f1-be57-b5dd6f58daf7/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd99d44c-6191-44f1-be57-b5dd6f58daf7/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd99d44c-6191-44f1-be57-b5dd6f58daf7/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-two-queue.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd99d44c-6191-44f1-be57-b5dd6f58daf7/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd99d44c-6191-44f1-be57-b5dd6f58daf7/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --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 2b29a4c23931df07495caab7fd70ec22fec28fcea21b47e1c8eb19fb44a778d8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:42:41,192 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:42:41,320 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd99d44c-6191-44f1-be57-b5dd6f58daf7/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf [2023-11-19 03:42:41,368 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:42:41,369 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:42:41,369 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:42:41,370 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:42:41,371 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:42:41,372 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:42:41,372 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:42:41,373 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:42:41,374 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:42:41,374 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:42:41,375 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:42:41,375 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:42:41,376 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:42:41,377 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 03:42:41,377 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 03:42:41,378 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 03:42:41,378 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 03:42:41,379 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:42:41,380 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:42:41,380 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:42:41,381 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:42:41,382 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:42:41,382 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:42:41,383 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:42:41,383 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:42:41,384 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 03:42:41,384 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:42:41,385 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:42:41,385 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:42:41,386 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:42:41,386 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:42:41,387 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 03:42:41,387 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:42:41,388 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:42:41,388 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 03:42:41,388 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 03:42:41,388 INFO L153 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_fd99d44c-6191-44f1-be57-b5dd6f58daf7/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd99d44c-6191-44f1-be57-b5dd6f58daf7/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b29a4c23931df07495caab7fd70ec22fec28fcea21b47e1c8eb19fb44a778d8 [2023-11-19 03:42:41,787 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:42:41,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:42:41,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:42:41,814 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:42:41,814 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:42:41,816 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd99d44c-6191-44f1-be57-b5dd6f58daf7/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/weaver/popl20-two-queue.wvr.c [2023-11-19 03:42:44,998 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:42:45,240 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:42:45,241 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd99d44c-6191-44f1-be57-b5dd6f58daf7/sv-benchmarks/c/weaver/popl20-two-queue.wvr.c [2023-11-19 03:42:45,249 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd99d44c-6191-44f1-be57-b5dd6f58daf7/bin/ukojak-verify-G8NBE6pJGL/data/d15599a3f/f3e3f6c6d7a74ecd8bb9aa511c997448/FLAG74c7ee4a4 [2023-11-19 03:42:45,263 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd99d44c-6191-44f1-be57-b5dd6f58daf7/bin/ukojak-verify-G8NBE6pJGL/data/d15599a3f/f3e3f6c6d7a74ecd8bb9aa511c997448 [2023-11-19 03:42:45,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:42:45,267 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:42:45,269 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:42:45,269 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:42:45,274 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:42:45,275 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:42:45" (1/1) ... [2023-11-19 03:42:45,277 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@438bdf1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:45, skipping insertion in model container [2023-11-19 03:42:45,277 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:42:45" (1/1) ... [2023-11-19 03:42:45,307 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:42:45,594 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:42:45,616 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 03:42:45,629 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:42:45,670 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:42:45,679 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:42:45,728 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:42:45,745 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:42:45,746 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:42:45,772 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:42:45,773 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:45 WrapperNode [2023-11-19 03:42:45,773 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:42:45,774 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:42:45,775 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:42:45,775 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:42:45,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:45" (1/1) ... [2023-11-19 03:42:45,810 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:45" (1/1) ... [2023-11-19 03:42:45,847 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 76 [2023-11-19 03:42:45,848 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:42:45,849 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:42:45,849 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:42:45,849 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:42:45,858 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:45" (1/1) ... [2023-11-19 03:42:45,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:45" (1/1) ... [2023-11-19 03:42:45,881 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:45" (1/1) ... [2023-11-19 03:42:45,882 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:45" (1/1) ... [2023-11-19 03:42:45,896 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:45" (1/1) ... [2023-11-19 03:42:45,900 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:45" (1/1) ... [2023-11-19 03:42:45,902 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:45" (1/1) ... [2023-11-19 03:42:45,904 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:45" (1/1) ... [2023-11-19 03:42:45,907 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:42:45,908 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:42:45,908 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:42:45,909 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:42:45,909 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:45" (1/1) ... [2023-11-19 03:42:45,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:42:45,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd99d44c-6191-44f1-be57-b5dd6f58daf7/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:42:45,946 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd99d44c-6191-44f1-be57-b5dd6f58daf7/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:42:45,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd99d44c-6191-44f1-be57-b5dd6f58daf7/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:42:45,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:42:45,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 03:42:45,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 03:42:45,995 INFO L130 BoogieDeclarations]: Found specification of procedure create_fresh_int_array [2023-11-19 03:42:45,995 INFO L138 BoogieDeclarations]: Found implementation of procedure create_fresh_int_array [2023-11-19 03:42:45,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 03:42:45,996 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 03:42:45,996 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 03:42:45,996 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 03:42:45,996 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 03:42:45,996 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 03:42:45,998 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 03:42:45,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 03:42:45,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 03:42:45,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 03:42:46,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:42:46,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:42:46,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:42:46,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 03:42:46,002 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 03:42:46,167 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:42:46,171 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:42:46,612 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:42:46,918 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:42:46,919 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-19 03:42:46,921 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: call #t~mem3 := read~intINTTYPE4(~q1~0.base, ~bvadd~32(~q1~0.offset, ~bvmul~32(4bv32, ~q1_front~0)), 4bv32);~i~0 := #t~mem3;havoc #t~mem3;#t~post4 := ~q1_front~0;assume ~bvsle~33(6442450944bv33, ~bvadd~33(1bv33, ~sign_extend~33~32(#t~post4)));assume ~bvsle~33(~bvadd~33(1bv33, ~sign_extend~33~32(#t~post4)), 2147483647bv33);~q1_front~0 := ~bvadd~32(1bv32, #t~post4);havoc #t~post4;). Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:328) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:320) 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:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) 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) [2023-11-19 03:42:46,930 INFO L158 Benchmark]: Toolchain (without parser) took 1661.85ms. Allocated memory is still 81.8MB. Free memory was 56.4MB in the beginning and 33.9MB in the end (delta: 22.4MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2023-11-19 03:42:46,932 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 60.8MB. Free memory is still 37.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:42:46,932 INFO L158 Benchmark]: CACSL2BoogieTranslator took 504.60ms. Allocated memory is still 81.8MB. Free memory was 56.2MB in the beginning and 61.5MB in the end (delta: -5.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 03:42:46,933 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.37ms. Allocated memory is still 81.8MB. Free memory was 61.5MB in the beginning and 59.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:42:46,934 INFO L158 Benchmark]: Boogie Preprocessor took 59.08ms. Allocated memory is still 81.8MB. Free memory was 59.6MB in the beginning and 57.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:42:46,936 INFO L158 Benchmark]: RCFGBuilder took 1019.96ms. Allocated memory is still 81.8MB. Free memory was 57.8MB in the beginning and 33.9MB in the end (delta: 23.9MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. [2023-11-19 03:42:46,940 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 60.8MB. Free memory is still 37.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 504.60ms. Allocated memory is still 81.8MB. Free memory was 56.2MB in the beginning and 61.5MB in the end (delta: -5.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.37ms. Allocated memory is still 81.8MB. Free memory was 61.5MB in the beginning and 59.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.08ms. Allocated memory is still 81.8MB. Free memory was 59.6MB in the beginning and 57.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1019.96ms. Allocated memory is still 81.8MB. Free memory was 57.8MB in the beginning and 33.9MB in the end (delta: 23.9MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: call #t~mem3 := read~intINTTYPE4(~q1~0.base, ~bvadd~32(~q1~0.offset, ~bvmul~32(4bv32, ~q1_front~0)), 4bv32);~i~0 := #t~mem3;havoc #t~mem3;#t~post4 := ~q1_front~0;assume ~bvsle~33(6442450944bv33, ~bvadd~33(1bv33, ~sign_extend~33~32(#t~post4)));assume ~bvsle~33(~bvadd~33(1bv33, ~sign_extend~33~32(#t~post4)), 2147483647bv33);~q1_front~0 := ~bvadd~32(1bv32, #t~post4);havoc #t~post4;). Is there illegal control flow (e.g. loops) within an atomic block? de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: call #t~mem3 := read~intINTTYPE4(~q1~0.base, ~bvadd~32(~q1~0.offset, ~bvmul~32(4bv32, ~q1_front~0)), 4bv32);~i~0 := #t~mem3;havoc #t~mem3;#t~post4 := ~q1_front~0;assume ~bvsle~33(6442450944bv33, ~bvadd~33(1bv33, ~sign_extend~33~32(#t~post4)));assume ~bvsle~33(~bvadd~33(1bv33, ~sign_extend~33~32(#t~post4)), 2147483647bv33);~q1_front~0 := ~bvadd~32(1bv32, #t~post4);havoc #t~post4;). Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:328) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-19 03:42:46,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd99d44c-6191-44f1-be57-b5dd6f58daf7/bin/ukojak-verify-G8NBE6pJGL/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: Incomplete atomic composition (dangling end of atomic block: call #t~mem3 := read~intINTTYPE4(~q1~0.base, ~bvadd~32(~q1~0.offset, ~bvmul~32(4bv32, ~q1_front~0)), 4bv32);~i~0 := #t~mem3;havoc #t~mem3;#t~post4 := ~q1_front~0;assume ~bvsle~33(6442450944bv33, ~bvadd~33(1bv33, ~sign_extend~33~32(#t~post4)));assume ~bvsle~33(~bvadd~33(1bv33, ~sign_extend~33~32(#t~post4)), 2147483647bv33);~q1_front~0 := ~bvadd~32(1bv32, #t~post4);havoc #t~post4;). Is there illegal control flow (e.g. loops) within an atomic block?