./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-more-queue-add-2-nl.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-queue-add-2-nl.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/bin/ukojak-verify-1t5iHCbJaC --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 613bf9314e4e3fb6e64527ec38c7e6b39400e524de37a5103e9f06d9db406d3d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:28:29,208 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:28:29,324 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-23 20:28:29,337 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:28:29,339 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:28:29,389 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:28:29,391 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:28:29,392 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:28:29,394 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:28:29,400 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:28:29,401 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:28:29,402 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:28:29,402 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:28:29,404 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:28:29,405 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:28:29,405 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:28:29,406 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:28:29,406 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:28:29,407 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:28:29,407 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:28:29,408 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:28:29,409 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:28:29,409 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:28:29,410 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:28:29,411 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:28:29,412 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:28:29,412 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:28:29,413 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:28:29,413 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:28:29,414 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:28:29,416 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:28:29,416 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:28:29,417 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:28:29,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:28:29,417 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:28:29,417 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_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 613bf9314e4e3fb6e64527ec38c7e6b39400e524de37a5103e9f06d9db406d3d [2023-11-23 20:28:29,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:28:29,821 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:28:29,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:28:29,826 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:28:29,826 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:28:29,828 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/weaver/popl20-more-queue-add-2-nl.wvr.c [2023-11-23 20:28:33,194 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:28:33,448 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:28:33,449 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/sv-benchmarks/c/weaver/popl20-more-queue-add-2-nl.wvr.c [2023-11-23 20:28:33,461 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/bin/ukojak-verify-1t5iHCbJaC/data/247e13866/12a561ef1a84425f823a1dd1a9eaceb0/FLAGaae389e29 [2023-11-23 20:28:33,480 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/bin/ukojak-verify-1t5iHCbJaC/data/247e13866/12a561ef1a84425f823a1dd1a9eaceb0 [2023-11-23 20:28:33,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:28:33,489 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:28:33,493 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:28:33,493 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:28:33,499 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:28:33,500 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:28:33" (1/1) ... [2023-11-23 20:28:33,502 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cdb9d9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:33, skipping insertion in model container [2023-11-23 20:28:33,502 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:28:33" (1/1) ... [2023-11-23 20:28:33,537 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:28:33,841 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:28:33,862 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:28:33,924 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:28:33,940 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:28:33,940 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:28:33,950 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:28:33,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:33 WrapperNode [2023-11-23 20:28:33,951 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:28:33,952 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:28:33,953 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:28:33,953 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:28:33,964 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:33" (1/1) ... [2023-11-23 20:28:33,994 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:33" (1/1) ... [2023-11-23 20:28:34,023 INFO L138 Inliner]: procedures = 25, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 94 [2023-11-23 20:28:34,024 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:28:34,025 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:28:34,025 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:28:34,025 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:28:34,037 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:33" (1/1) ... [2023-11-23 20:28:34,038 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:33" (1/1) ... [2023-11-23 20:28:34,042 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:33" (1/1) ... [2023-11-23 20:28:34,043 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:33" (1/1) ... [2023-11-23 20:28:34,053 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:33" (1/1) ... [2023-11-23 20:28:34,058 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:33" (1/1) ... [2023-11-23 20:28:34,061 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:33" (1/1) ... [2023-11-23 20:28:34,062 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:33" (1/1) ... [2023-11-23 20:28:34,066 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:28:34,079 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:28:34,079 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:28:34,079 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:28:34,080 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:33" (1/1) ... [2023-11-23 20:28:34,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:28:34,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:28:34,131 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:28:34,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:28:34,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:28:34,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:28:34,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:28:34,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:28:34,174 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-23 20:28:34,174 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-23 20:28:34,174 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-23 20:28:34,174 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-23 20:28:34,175 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:28:34,175 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:28:34,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:28:34,176 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-23 20:28:34,176 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-23 20:28:34,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:28:34,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:28:34,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:28:34,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:28:34,179 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 20:28:34,308 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:28:34,311 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:28:34,730 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:28:34,915 WARN L1821 r$LargeBlockEncoding]: Complex 2:4 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2023-11-23 20:28:34,965 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: havoc #t~mem2;#t~post3 := ~q_back~0;assume 1 + #t~post3 >= -2147483648;assume 1 + #t~post3 <= 2147483647;~q_back~0 := 1 + #t~post3;havoc #t~post3;). 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:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:296) 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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-23 20:28:34,971 INFO L158 Benchmark]: Toolchain (without parser) took 1480.97ms. Allocated memory was 125.8MB in the beginning and 159.4MB in the end (delta: 33.6MB). Free memory was 80.8MB in the beginning and 112.1MB in the end (delta: -31.3MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. [2023-11-23 20:28:34,972 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 125.8MB. Free memory was 74.5MB in the beginning and 74.4MB in the end (delta: 97.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:28:34,972 INFO L158 Benchmark]: CACSL2BoogieTranslator took 458.53ms. Allocated memory is still 125.8MB. Free memory was 80.8MB in the beginning and 68.8MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 20:28:34,973 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.79ms. Allocated memory is still 125.8MB. Free memory was 68.8MB in the beginning and 67.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:28:34,974 INFO L158 Benchmark]: Boogie Preprocessor took 41.76ms. Allocated memory is still 125.8MB. Free memory was 67.1MB in the beginning and 65.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:28:34,975 INFO L158 Benchmark]: RCFGBuilder took 889.99ms. Allocated memory was 125.8MB in the beginning and 159.4MB in the end (delta: 33.6MB). Free memory was 65.4MB in the beginning and 112.1MB in the end (delta: -46.7MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2023-11-23 20:28:34,979 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 125.8MB. Free memory was 74.5MB in the beginning and 74.4MB in the end (delta: 97.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 458.53ms. Allocated memory is still 125.8MB. Free memory was 80.8MB in the beginning and 68.8MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.79ms. Allocated memory is still 125.8MB. Free memory was 68.8MB in the beginning and 67.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.76ms. Allocated memory is still 125.8MB. Free memory was 67.1MB in the beginning and 65.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 889.99ms. Allocated memory was 125.8MB in the beginning and 159.4MB in the end (delta: 33.6MB). Free memory was 65.4MB in the beginning and 112.1MB in the end (delta: -46.7MB). Peak memory consumption was 22.6MB. 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: havoc #t~mem2;#t~post3 := ~q_back~0;assume 1 + #t~post3 >= -2147483648;assume 1 + #t~post3 <= 2147483647;~q_back~0 := 1 + #t~post3;havoc #t~post3;). 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: havoc #t~mem2;#t~post3 := ~q_back~0;assume 1 + #t~post3 >= -2147483648;assume 1 + #t~post3 <= 2147483647;~q_back~0 := 1 + #t~post3;havoc #t~post3;). 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:333) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-23 20:28:35,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/bin/ukojak-verify-1t5iHCbJaC/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-queue-add-2-nl.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/bin/ukojak-verify-1t5iHCbJaC --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 613bf9314e4e3fb6e64527ec38c7e6b39400e524de37a5103e9f06d9db406d3d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:28:37,989 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:28:38,159 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf [2023-11-23 20:28:38,229 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:28:38,230 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:28:38,232 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:28:38,233 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:28:38,234 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:28:38,236 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:28:38,242 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:28:38,243 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:28:38,244 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:28:38,244 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:28:38,246 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:28:38,247 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:28:38,248 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:28:38,248 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:28:38,249 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:28:38,249 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:28:38,251 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:28:38,251 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:28:38,252 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:28:38,253 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:28:38,253 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:28:38,254 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:28:38,254 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:28:38,255 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:28:38,255 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:28:38,256 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-23 20:28:38,257 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:28:38,258 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:28:38,259 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:28:38,259 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:28:38,260 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:28:38,260 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:28:38,261 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:28:38,261 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:28:38,261 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-23 20:28:38,262 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:28:38,263 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_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 613bf9314e4e3fb6e64527ec38c7e6b39400e524de37a5103e9f06d9db406d3d [2023-11-23 20:28:38,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:28:38,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:28:38,846 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:28:38,848 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:28:38,849 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:28:38,851 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/weaver/popl20-more-queue-add-2-nl.wvr.c [2023-11-23 20:28:42,551 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:28:42,962 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:28:42,963 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/sv-benchmarks/c/weaver/popl20-more-queue-add-2-nl.wvr.c [2023-11-23 20:28:42,978 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/bin/ukojak-verify-1t5iHCbJaC/data/397e32b9e/b0e248f5c9bd4ae1bcac9f3eca58e560/FLAGd46fa9352 [2023-11-23 20:28:43,004 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/bin/ukojak-verify-1t5iHCbJaC/data/397e32b9e/b0e248f5c9bd4ae1bcac9f3eca58e560 [2023-11-23 20:28:43,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:28:43,015 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:28:43,020 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:28:43,021 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:28:43,027 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:28:43,028 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:28:43" (1/1) ... [2023-11-23 20:28:43,030 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51620856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:43, skipping insertion in model container [2023-11-23 20:28:43,030 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:28:43" (1/1) ... [2023-11-23 20:28:43,075 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:28:43,439 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:28:43,467 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-23 20:28:43,482 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:28:43,536 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:28:43,551 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:28:43,614 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:28:43,635 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:28:43,636 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:28:43,646 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:28:43,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:43 WrapperNode [2023-11-23 20:28:43,647 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:28:43,649 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:28:43,649 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:28:43,649 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:28:43,660 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:43" (1/1) ... [2023-11-23 20:28:43,693 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:43" (1/1) ... [2023-11-23 20:28:43,739 INFO L138 Inliner]: procedures = 27, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 90 [2023-11-23 20:28:43,739 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:28:43,741 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:28:43,742 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:28:43,742 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:28:43,755 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:43" (1/1) ... [2023-11-23 20:28:43,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:43" (1/1) ... [2023-11-23 20:28:43,775 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:43" (1/1) ... [2023-11-23 20:28:43,779 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:43" (1/1) ... [2023-11-23 20:28:43,791 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:43" (1/1) ... [2023-11-23 20:28:43,804 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:43" (1/1) ... [2023-11-23 20:28:43,812 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:43" (1/1) ... [2023-11-23 20:28:43,831 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:43" (1/1) ... [2023-11-23 20:28:43,836 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:28:43,837 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:28:43,837 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:28:43,838 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:28:43,839 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:43" (1/1) ... [2023-11-23 20:28:43,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:28:43,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:28:43,886 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:28:43,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:28:43,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:28:43,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:28:43,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:28:43,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-23 20:28:43,935 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-23 20:28:43,936 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-23 20:28:43,936 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-23 20:28:43,936 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-23 20:28:43,936 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:28:43,937 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:28:43,937 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-23 20:28:43,939 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-23 20:28:43,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:28:43,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:28:43,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:28:43,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:28:43,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-23 20:28:43,944 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 20:28:44,091 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:28:44,094 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:28:44,749 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:28:45,007 WARN L1821 r$LargeBlockEncoding]: Complex 2:4 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2023-11-23 20:28:45,067 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: havoc #t~mem2;#t~post3 := ~q_back~0;assume ~bvsle~33(6442450944bv33, ~bvadd~33(1bv33, ~sign_extend~33~32(#t~post3)));assume ~bvsle~33(~bvadd~33(1bv33, ~sign_extend~33~32(#t~post3)), 2147483647bv33);~q_back~0 := ~bvadd~32(1bv32, #t~post3);havoc #t~post3;). 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:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:296) 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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-23 20:28:45,075 INFO L158 Benchmark]: Toolchain (without parser) took 2059.04ms. Allocated memory is still 113.2MB. Free memory was 89.5MB in the beginning and 59.8MB in the end (delta: 29.7MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2023-11-23 20:28:45,076 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 81.8MB. Free memory was 58.4MB in the beginning and 58.3MB in the end (delta: 74.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:28:45,078 INFO L158 Benchmark]: CACSL2BoogieTranslator took 627.32ms. Allocated memory is still 113.2MB. Free memory was 89.2MB in the beginning and 75.3MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 20:28:45,078 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.79ms. Allocated memory is still 113.2MB. Free memory was 75.1MB in the beginning and 73.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:28:45,081 INFO L158 Benchmark]: Boogie Preprocessor took 94.59ms. Allocated memory is still 113.2MB. Free memory was 73.3MB in the beginning and 71.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:28:45,082 INFO L158 Benchmark]: RCFGBuilder took 1236.01ms. Allocated memory is still 113.2MB. Free memory was 71.5MB in the beginning and 59.8MB in the end (delta: 11.6MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2023-11-23 20:28:45,093 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 81.8MB. Free memory was 58.4MB in the beginning and 58.3MB in the end (delta: 74.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 627.32ms. Allocated memory is still 113.2MB. Free memory was 89.2MB in the beginning and 75.3MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.79ms. Allocated memory is still 113.2MB. Free memory was 75.1MB in the beginning and 73.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 94.59ms. Allocated memory is still 113.2MB. Free memory was 73.3MB in the beginning and 71.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1236.01ms. Allocated memory is still 113.2MB. Free memory was 71.5MB in the beginning and 59.8MB in the end (delta: 11.6MB). Peak memory consumption was 11.0MB. 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: havoc #t~mem2;#t~post3 := ~q_back~0;assume ~bvsle~33(6442450944bv33, ~bvadd~33(1bv33, ~sign_extend~33~32(#t~post3)));assume ~bvsle~33(~bvadd~33(1bv33, ~sign_extend~33~32(#t~post3)), 2147483647bv33);~q_back~0 := ~bvadd~32(1bv32, #t~post3);havoc #t~post3;). 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: havoc #t~mem2;#t~post3 := ~q_back~0;assume ~bvsle~33(6442450944bv33, ~bvadd~33(1bv33, ~sign_extend~33~32(#t~post3)));assume ~bvsle~33(~bvadd~33(1bv33, ~sign_extend~33~32(#t~post3)), 2147483647bv33);~q_back~0 := ~bvadd~32(1bv32, #t~post3);havoc #t~post3;). 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:333) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-23 20:28:45,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f524eedf-0c6e-4c2d-a3bb-0d41398b26af/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: havoc #t~mem2;#t~post3 := ~q_back~0;assume ~bvsle~33(6442450944bv33, ~bvadd~33(1bv33, ~sign_extend~33~32(#t~post3)));assume ~bvsle~33(~bvadd~33(1bv33, ~sign_extend~33~32(#t~post3)), 2147483647bv33);~q_back~0 := ~bvadd~32(1bv32, #t~post3);havoc #t~post3;). Is there illegal control flow (e.g. loops) within an atomic block?