./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_bfa1122e-27ac-4a0d-a067-de69039dd907/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8c3fe688d0e9a9929009fc24c8ef56c8fc1bfa15613131b287e178eb7d2f1f1e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 00:08:40,184 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 00:08:40,278 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 00:08:40,283 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 00:08:40,284 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 00:08:40,311 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 00:08:40,312 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 00:08:40,313 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 00:08:40,314 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 00:08:40,315 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 00:08:40,315 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 00:08:40,316 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 00:08:40,317 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 00:08:40,317 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 00:08:40,318 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 00:08:40,318 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 00:08:40,319 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 00:08:40,320 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 00:08:40,320 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 00:08:40,321 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 00:08:40,321 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 00:08:40,322 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 00:08:40,323 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 00:08:40,323 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 00:08:40,324 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 00:08:40,324 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 00:08:40,325 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:08:40,325 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 00:08:40,326 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 00:08:40,326 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 00:08:40,327 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 00:08:40,327 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 00:08:40,327 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 00:08:40,328 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_bfa1122e-27ac-4a0d-a067-de69039dd907/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c3fe688d0e9a9929009fc24c8ef56c8fc1bfa15613131b287e178eb7d2f1f1e [2023-12-03 00:08:40,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 00:08:40,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 00:08:40,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 00:08:40,638 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 00:08:40,639 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 00:08:40,640 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c [2023-12-03 00:08:44,108 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 00:08:44,374 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 00:08:44,375 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c [2023-12-03 00:08:44,386 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/bin/ukojak-verify-Qdu7aM0XO9/data/cfeeae2d1/8e1e02c388364c9ea921b81c8256baf6/FLAG22326cd68 [2023-12-03 00:08:44,404 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/bin/ukojak-verify-Qdu7aM0XO9/data/cfeeae2d1/8e1e02c388364c9ea921b81c8256baf6 [2023-12-03 00:08:44,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 00:08:44,410 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 00:08:44,412 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 00:08:44,412 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 00:08:44,418 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 00:08:44,419 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:08:44" (1/1) ... [2023-12-03 00:08:44,421 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a91ab32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:08:44, skipping insertion in model container [2023-12-03 00:08:44,421 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:08:44" (1/1) ... [2023-12-03 00:08:44,456 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 00:08:44,674 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c[2722,2735] [2023-12-03 00:08:44,687 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:08:44,701 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 00:08:44,728 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c[2722,2735] [2023-12-03 00:08:44,733 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:08:44,743 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:08:44,743 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:08:44,753 INFO L206 MainTranslator]: Completed translation [2023-12-03 00:08:44,754 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:08:44 WrapperNode [2023-12-03 00:08:44,754 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 00:08:44,755 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 00:08:44,756 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 00:08:44,756 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 00:08:44,766 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:08:44" (1/1) ... [2023-12-03 00:08:44,777 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:08:44" (1/1) ... [2023-12-03 00:08:44,804 INFO L138 Inliner]: procedures = 24, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 84 [2023-12-03 00:08:44,804 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 00:08:44,805 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 00:08:44,805 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 00:08:44,805 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 00:08:44,816 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:08:44" (1/1) ... [2023-12-03 00:08:44,816 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:08:44" (1/1) ... [2023-12-03 00:08:44,820 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:08:44" (1/1) ... [2023-12-03 00:08:44,821 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:08:44" (1/1) ... [2023-12-03 00:08:44,830 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:08:44" (1/1) ... [2023-12-03 00:08:44,834 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:08:44" (1/1) ... [2023-12-03 00:08:44,837 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:08:44" (1/1) ... [2023-12-03 00:08:44,839 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:08:44" (1/1) ... [2023-12-03 00:08:44,842 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 00:08:44,844 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 00:08:44,844 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 00:08:44,844 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 00:08:44,846 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:08:44" (1/1) ... [2023-12-03 00:08:44,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:08:44,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 00:08:44,883 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 00:08:44,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 00:08:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 00:08:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-03 00:08:44,923 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-03 00:08:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-03 00:08:44,924 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-03 00:08:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-03 00:08:44,924 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-03 00:08:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 00:08:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 00:08:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-03 00:08:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-03 00:08:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-03 00:08:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-03 00:08:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 00:08:44,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 00:08:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-03 00:08:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 00:08:44,928 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-03 00:08:45,062 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 00:08:45,065 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 00:08:45,341 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 00:08:45,458 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~mem4;#t~post5 := ~q_back~0;~q_back~0 := 1 + #t~post5;havoc #t~post5;). 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) [2023-12-03 00:08:45,463 INFO L158 Benchmark]: Toolchain (without parser) took 1052.28ms. Allocated memory is still 153.1MB. Free memory was 124.2MB in the beginning and 87.1MB in the end (delta: 37.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-12-03 00:08:45,464 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 107.0MB. Free memory is still 67.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:08:45,465 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.71ms. Allocated memory is still 153.1MB. Free memory was 123.8MB in the beginning and 112.0MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 00:08:45,466 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.90ms. Allocated memory is still 153.1MB. Free memory was 112.0MB in the beginning and 110.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 00:08:45,466 INFO L158 Benchmark]: Boogie Preprocessor took 37.62ms. Allocated memory is still 153.1MB. Free memory was 110.3MB in the beginning and 108.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 00:08:45,467 INFO L158 Benchmark]: RCFGBuilder took 617.32ms. Allocated memory is still 153.1MB. Free memory was 108.8MB in the beginning and 87.1MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-12-03 00:08:45,471 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 107.0MB. Free memory is still 67.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 342.71ms. Allocated memory is still 153.1MB. Free memory was 123.8MB in the beginning and 112.0MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.90ms. Allocated memory is still 153.1MB. Free memory was 112.0MB in the beginning and 110.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.62ms. Allocated memory is still 153.1MB. Free memory was 110.3MB in the beginning and 108.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 617.32ms. Allocated memory is still 153.1MB. Free memory was 108.8MB in the beginning and 87.1MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. 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~mem4;#t~post5 := ~q_back~0;~q_back~0 := 1 + #t~post5;havoc #t~post5;). 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~mem4;#t~post5 := ~q_back~0;~q_back~0 := 1 + #t~post5;havoc #t~post5;). 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. [2023-12-03 00:08:45,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8c3fe688d0e9a9929009fc24c8ef56c8fc1bfa15613131b287e178eb7d2f1f1e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 00:08:47,897 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 00:08:47,993 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-12-03 00:08:48,033 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 00:08:48,034 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 00:08:48,035 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 00:08:48,036 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 00:08:48,037 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 00:08:48,038 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 00:08:48,038 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 00:08:48,039 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 00:08:48,040 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 00:08:48,040 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 00:08:48,041 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 00:08:48,041 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 00:08:48,042 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 00:08:48,043 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 00:08:48,043 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 00:08:48,044 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 00:08:48,045 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 00:08:48,045 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 00:08:48,049 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 00:08:48,050 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 00:08:48,050 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 00:08:48,051 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 00:08:48,052 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 00:08:48,053 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 00:08:48,054 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 00:08:48,054 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:08:48,055 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 00:08:48,056 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 00:08:48,056 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 00:08:48,056 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 00:08:48,057 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 00:08:48,057 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 00:08:48,058 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 00:08:48,058 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 00:08:48,058 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_bfa1122e-27ac-4a0d-a067-de69039dd907/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c3fe688d0e9a9929009fc24c8ef56c8fc1bfa15613131b287e178eb7d2f1f1e [2023-12-03 00:08:48,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 00:08:48,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 00:08:48,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 00:08:48,453 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 00:08:48,454 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 00:08:48,455 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c [2023-12-03 00:08:52,045 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 00:08:52,301 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 00:08:52,302 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c [2023-12-03 00:08:52,312 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/bin/ukojak-verify-Qdu7aM0XO9/data/ccd568066/1cb2fe3dfbb646099856997e6de1c81e/FLAG880c9fae1 [2023-12-03 00:08:52,326 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/bin/ukojak-verify-Qdu7aM0XO9/data/ccd568066/1cb2fe3dfbb646099856997e6de1c81e [2023-12-03 00:08:52,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 00:08:52,330 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 00:08:52,332 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 00:08:52,332 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 00:08:52,337 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 00:08:52,337 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:08:52" (1/1) ... [2023-12-03 00:08:52,339 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c1b8c71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:08:52, skipping insertion in model container [2023-12-03 00:08:52,339 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:08:52" (1/1) ... [2023-12-03 00:08:52,368 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 00:08:52,611 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c[2722,2735] [2023-12-03 00:08:52,626 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:08:52,644 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-03 00:08:52,651 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 00:08:52,669 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c[2722,2735] [2023-12-03 00:08:52,674 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:08:52,681 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 00:08:52,711 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c[2722,2735] [2023-12-03 00:08:52,715 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:08:52,729 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:08:52,729 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:08:52,740 INFO L206 MainTranslator]: Completed translation [2023-12-03 00:08:52,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:08:52 WrapperNode [2023-12-03 00:08:52,741 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 00:08:52,742 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 00:08:52,742 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 00:08:52,742 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 00:08:52,752 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:08:52" (1/1) ... [2023-12-03 00:08:52,767 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:08:52" (1/1) ... [2023-12-03 00:08:52,796 INFO L138 Inliner]: procedures = 26, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 80 [2023-12-03 00:08:52,796 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 00:08:52,797 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 00:08:52,797 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 00:08:52,798 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 00:08:52,810 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:08:52" (1/1) ... [2023-12-03 00:08:52,811 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:08:52" (1/1) ... [2023-12-03 00:08:52,817 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:08:52" (1/1) ... [2023-12-03 00:08:52,817 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:08:52" (1/1) ... [2023-12-03 00:08:52,830 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:08:52" (1/1) ... [2023-12-03 00:08:52,835 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:08:52" (1/1) ... [2023-12-03 00:08:52,838 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:08:52" (1/1) ... [2023-12-03 00:08:52,840 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:08:52" (1/1) ... [2023-12-03 00:08:52,844 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 00:08:52,846 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 00:08:52,846 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 00:08:52,846 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 00:08:52,847 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:08:52" (1/1) ... [2023-12-03 00:08:52,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:08:52,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 00:08:52,885 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 00:08:52,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 00:08:52,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 00:08:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 00:08:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 00:08:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-03 00:08:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-03 00:08:52,944 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-03 00:08:52,944 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-03 00:08:52,944 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-03 00:08:52,944 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-03 00:08:52,945 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-03 00:08:52,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-03 00:08:52,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-03 00:08:52,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-03 00:08:52,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 00:08:52,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 00:08:52,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 00:08:52,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-03 00:08:52,948 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-03 00:08:53,100 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 00:08:53,103 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 00:08:53,458 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 00:08:53,582 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~mem4;#t~post5 := ~q_back~0;~q_back~0 := ~bvadd~32(1bv32, #t~post5);havoc #t~post5;). 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) [2023-12-03 00:08:53,587 INFO L158 Benchmark]: Toolchain (without parser) took 1255.25ms. Allocated memory is still 119.5MB. Free memory was 95.3MB in the beginning and 87.0MB in the end (delta: 8.3MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. [2023-12-03 00:08:53,588 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 62.9MB. Free memory was 39.1MB in the beginning and 39.0MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:08:53,588 INFO L158 Benchmark]: CACSL2BoogieTranslator took 409.17ms. Allocated memory is still 119.5MB. Free memory was 95.0MB in the beginning and 81.2MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-03 00:08:53,589 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.51ms. Allocated memory is still 119.5MB. Free memory was 81.2MB in the beginning and 79.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 00:08:53,590 INFO L158 Benchmark]: Boogie Preprocessor took 47.30ms. Allocated memory is still 119.5MB. Free memory was 79.5MB in the beginning and 77.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:08:53,591 INFO L158 Benchmark]: RCFGBuilder took 739.25ms. Allocated memory is still 119.5MB. Free memory was 77.7MB in the beginning and 87.0MB in the end (delta: -9.3MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2023-12-03 00:08:53,594 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 62.9MB. Free memory was 39.1MB in the beginning and 39.0MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 409.17ms. Allocated memory is still 119.5MB. Free memory was 95.0MB in the beginning and 81.2MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.51ms. Allocated memory is still 119.5MB. Free memory was 81.2MB in the beginning and 79.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.30ms. Allocated memory is still 119.5MB. Free memory was 79.5MB in the beginning and 77.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 739.25ms. Allocated memory is still 119.5MB. Free memory was 77.7MB in the beginning and 87.0MB in the end (delta: -9.3MB). Peak memory consumption was 21.4MB. 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~mem4;#t~post5 := ~q_back~0;~q_back~0 := ~bvadd~32(1bv32, #t~post5);havoc #t~post5;). 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~mem4;#t~post5 := ~q_back~0;~q_back~0 := ~bvadd~32(1bv32, #t~post5);havoc #t~post5;). 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. [2023-12-03 00:08:53,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa1122e-27ac-4a0d-a067-de69039dd907/bin/ukojak-verify-Qdu7aM0XO9/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~mem4;#t~post5 := ~q_back~0;~q_back~0 := ~bvadd~32(1bv32, #t~post5);havoc #t~post5;). Is there illegal control flow (e.g. loops) within an atomic block?