./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-difference-det.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-difference-det.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/bin/ukojak-verify-G8NBE6pJGL --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 38e3acb82ec05e672eff9207911c10948d6c695f982992ce82b68981a799bba7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:59:00,608 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:59:00,681 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:59:00,686 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:59:00,687 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:59:00,716 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:59:00,718 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:59:00,718 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:59:00,719 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:59:00,720 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:59:00,721 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:59:00,722 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:59:00,722 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:59:00,723 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:59:00,724 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:59:00,724 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:59:00,725 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:59:00,726 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:59:00,726 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:59:00,727 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:59:00,728 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:59:00,728 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:59:00,729 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:59:00,730 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:59:00,731 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:59:00,731 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:59:00,732 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:59:00,733 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:59:00,733 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:59:00,734 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:59:00,734 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:59:00,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:59:00,736 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:59:00,736 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_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38e3acb82ec05e672eff9207911c10948d6c695f982992ce82b68981a799bba7 [2023-11-19 03:59:00,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:59:01,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:59:01,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:59:01,017 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:59:01,017 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:59:01,019 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/weaver/popl20-difference-det.wvr.c [2023-11-19 03:59:04,125 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:59:04,340 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:59:04,341 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/sv-benchmarks/c/weaver/popl20-difference-det.wvr.c [2023-11-19 03:59:04,349 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/bin/ukojak-verify-G8NBE6pJGL/data/b9f64b9d3/4663815ff9fb4cecb3878b0b9c7ad8d9/FLAG8142fe5c5 [2023-11-19 03:59:04,362 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/bin/ukojak-verify-G8NBE6pJGL/data/b9f64b9d3/4663815ff9fb4cecb3878b0b9c7ad8d9 [2023-11-19 03:59:04,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:59:04,367 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:59:04,369 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:59:04,369 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:59:04,380 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:59:04,381 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:59:04" (1/1) ... [2023-11-19 03:59:04,382 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62ad4f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:04, skipping insertion in model container [2023-11-19 03:59:04,383 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:59:04" (1/1) ... [2023-11-19 03:59:04,411 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:59:04,661 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_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/sv-benchmarks/c/weaver/popl20-difference-det.wvr.c[2559,2572] [2023-11-19 03:59:04,672 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:59:04,685 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:59:04,732 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_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/sv-benchmarks/c/weaver/popl20-difference-det.wvr.c[2559,2572] [2023-11-19 03:59:04,737 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:59:04,753 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:59:04,753 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:59:04,762 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:59:04,762 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:04 WrapperNode [2023-11-19 03:59:04,763 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:59:04,765 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:59:04,765 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:59:04,765 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:59:04,774 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:04" (1/1) ... [2023-11-19 03:59:04,797 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:04" (1/1) ... [2023-11-19 03:59:04,828 INFO L138 Inliner]: procedures = 23, calls = 41, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 80 [2023-11-19 03:59:04,829 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:59:04,830 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:59:04,830 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:59:04,830 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:59:04,842 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:04" (1/1) ... [2023-11-19 03:59:04,842 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:04" (1/1) ... [2023-11-19 03:59:04,845 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:04" (1/1) ... [2023-11-19 03:59:04,846 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:04" (1/1) ... [2023-11-19 03:59:04,862 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:04" (1/1) ... [2023-11-19 03:59:04,873 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:04" (1/1) ... [2023-11-19 03:59:04,875 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:04" (1/1) ... [2023-11-19 03:59:04,877 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:04" (1/1) ... [2023-11-19 03:59:04,879 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:59:04,880 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:59:04,881 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:59:04,881 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:59:04,882 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:04" (1/1) ... [2023-11-19 03:59:04,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:59:04,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:59:04,921 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:59:04,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:59:04,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:59:04,972 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 03:59:04,972 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 03:59:04,973 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 03:59:04,973 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 03:59:04,974 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-19 03:59:04,975 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-19 03:59:04,975 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-19 03:59:04,975 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-19 03:59:04,975 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 03:59:04,975 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 03:59:04,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:59:04,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 03:59:04,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 03:59:04,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 03:59:04,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 03:59:04,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:59:04,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:59:04,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 03:59:04,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:59:04,980 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 03:59:05,134 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:59:05,140 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:59:05,422 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:59:05,507 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:59:05,508 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 03:59:05,510 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: ). 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:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-19 03:59:05,515 INFO L158 Benchmark]: Toolchain (without parser) took 1146.55ms. Allocated memory is still 163.6MB. Free memory was 115.6MB in the beginning and 82.0MB in the end (delta: 33.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-19 03:59:05,516 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 104.9MB. Free memory is still 55.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:59:05,517 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.95ms. Allocated memory is still 163.6MB. Free memory was 115.6MB in the beginning and 104.0MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 03:59:05,518 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.31ms. Allocated memory is still 163.6MB. Free memory was 103.5MB in the beginning and 101.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:59:05,519 INFO L158 Benchmark]: Boogie Preprocessor took 49.96ms. Allocated memory is still 163.6MB. Free memory was 101.9MB in the beginning and 100.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:59:05,519 INFO L158 Benchmark]: RCFGBuilder took 632.36ms. Allocated memory is still 163.6MB. Free memory was 100.2MB in the beginning and 82.0MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 03:59:05,523 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 104.9MB. Free memory is still 55.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 394.95ms. Allocated memory is still 163.6MB. Free memory was 115.6MB in the beginning and 104.0MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.31ms. Allocated memory is still 163.6MB. Free memory was 103.5MB in the beginning and 101.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.96ms. Allocated memory is still 163.6MB. Free memory was 101.9MB in the beginning and 100.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 632.36ms. Allocated memory is still 163.6MB. Free memory was 100.2MB in the beginning and 82.0MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: ). 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 start of atomic block: ). 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:348) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-19 03:59:05,564 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-difference-det.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/bin/ukojak-verify-G8NBE6pJGL --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 38e3acb82ec05e672eff9207911c10948d6c695f982992ce82b68981a799bba7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:59:08,270 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:59:08,343 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-19 03:59:08,377 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:59:08,378 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:59:08,379 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:59:08,380 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:59:08,380 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:59:08,381 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:59:08,382 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:59:08,382 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:59:08,383 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:59:08,383 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:59:08,384 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:59:08,384 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:59:08,385 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:59:08,386 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 03:59:08,386 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 03:59:08,387 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 03:59:08,387 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:59:08,388 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:59:08,391 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:59:08,391 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:59:08,392 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:59:08,392 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:59:08,393 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:59:08,393 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 03:59:08,393 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:59:08,394 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:59:08,394 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:59:08,395 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:59:08,396 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:59:08,396 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 03:59:08,397 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:59:08,397 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:59:08,398 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 03:59:08,398 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 03:59:08,398 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_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38e3acb82ec05e672eff9207911c10948d6c695f982992ce82b68981a799bba7 [2023-11-19 03:59:08,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:59:08,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:59:08,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:59:08,873 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:59:08,873 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:59:08,876 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/weaver/popl20-difference-det.wvr.c [2023-11-19 03:59:11,969 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:59:12,214 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:59:12,215 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/sv-benchmarks/c/weaver/popl20-difference-det.wvr.c [2023-11-19 03:59:12,224 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/bin/ukojak-verify-G8NBE6pJGL/data/7f6ffd9f8/928b60dc54264fe1bb1fbfc520c24506/FLAG5eaf91589 [2023-11-19 03:59:12,239 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/bin/ukojak-verify-G8NBE6pJGL/data/7f6ffd9f8/928b60dc54264fe1bb1fbfc520c24506 [2023-11-19 03:59:12,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:59:12,243 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:59:12,244 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:59:12,245 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:59:12,250 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:59:12,251 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:59:12" (1/1) ... [2023-11-19 03:59:12,252 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@553b8fed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:12, skipping insertion in model container [2023-11-19 03:59:12,252 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:59:12" (1/1) ... [2023-11-19 03:59:12,279 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:59:12,500 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_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/sv-benchmarks/c/weaver/popl20-difference-det.wvr.c[2559,2572] [2023-11-19 03:59:12,506 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:59:12,525 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:59:12,568 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_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/sv-benchmarks/c/weaver/popl20-difference-det.wvr.c[2559,2572] [2023-11-19 03:59:12,569 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:59:12,581 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:59:12,581 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:59:12,587 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:59:12,588 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:12 WrapperNode [2023-11-19 03:59:12,588 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:59:12,589 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:59:12,589 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:59:12,589 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:59:12,596 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:12" (1/1) ... [2023-11-19 03:59:12,613 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:12" (1/1) ... [2023-11-19 03:59:12,634 INFO L138 Inliner]: procedures = 25, calls = 41, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 78 [2023-11-19 03:59:12,635 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:59:12,636 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:59:12,636 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:59:12,636 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:59:12,646 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:12" (1/1) ... [2023-11-19 03:59:12,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:12" (1/1) ... [2023-11-19 03:59:12,650 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:12" (1/1) ... [2023-11-19 03:59:12,651 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:12" (1/1) ... [2023-11-19 03:59:12,666 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:12" (1/1) ... [2023-11-19 03:59:12,670 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:12" (1/1) ... [2023-11-19 03:59:12,673 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:12" (1/1) ... [2023-11-19 03:59:12,674 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:12" (1/1) ... [2023-11-19 03:59:12,678 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:59:12,679 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:59:12,679 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:59:12,679 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:59:12,680 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:12" (1/1) ... [2023-11-19 03:59:12,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:59:12,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:59:12,721 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:59:12,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:59:12,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:59:12,777 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 03:59:12,777 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 03:59:12,778 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 03:59:12,778 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 03:59:12,778 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-19 03:59:12,778 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-19 03:59:12,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 03:59:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-19 03:59:12,779 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-19 03:59:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 03:59:12,779 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 03:59:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 03:59:12,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 03:59:12,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 03:59:12,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 03:59:12,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:59:12,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:59:12,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:59:12,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 03:59:12,782 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 03:59:12,904 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:59:12,906 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:59:13,263 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:59:13,349 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:59:13,349 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 03:59:13,351 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: ). 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:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-19 03:59:13,356 INFO L158 Benchmark]: Toolchain (without parser) took 1112.04ms. Allocated memory is still 79.7MB. Free memory was 56.1MB in the beginning and 41.4MB in the end (delta: 14.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 03:59:13,357 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 79.7MB. Free memory was 55.8MB in the beginning and 55.7MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:59:13,357 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.81ms. Allocated memory is still 79.7MB. Free memory was 55.9MB in the beginning and 43.7MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 03:59:13,358 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.11ms. Allocated memory is still 79.7MB. Free memory was 43.7MB in the beginning and 42.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:59:13,359 INFO L158 Benchmark]: Boogie Preprocessor took 42.58ms. Allocated memory is still 79.7MB. Free memory was 42.2MB in the beginning and 40.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:59:13,360 INFO L158 Benchmark]: RCFGBuilder took 675.18ms. Allocated memory is still 79.7MB. Free memory was 40.3MB in the beginning and 41.4MB in the end (delta: -1.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 03:59:13,363 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 79.7MB. Free memory was 55.8MB in the beginning and 55.7MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 343.81ms. Allocated memory is still 79.7MB. Free memory was 55.9MB in the beginning and 43.7MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.11ms. Allocated memory is still 79.7MB. Free memory was 43.7MB in the beginning and 42.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.58ms. Allocated memory is still 79.7MB. Free memory was 42.2MB in the beginning and 40.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 675.18ms. Allocated memory is still 79.7MB. Free memory was 40.3MB in the beginning and 41.4MB in the end (delta: -1.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: ). 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 start of atomic block: ). 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:348) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-19 03:59:13,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe39fad-3b83-450e-b7f0-a191d9a4d97a/bin/ukojak-verify-G8NBE6pJGL/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 start of atomic block: ). Is there illegal control flow (e.g. loops) within an atomic block?