./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-more-queue-add-2-nl.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 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_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/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_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-queue-add-2-nl.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 613bf9314e4e3fb6e64527ec38c7e6b39400e524de37a5103e9f06d9db406d3d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:27:08,753 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:27:08,815 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-12-02 23:27:08,819 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 23:27:08,820 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 23:27:08,850 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:27:08,851 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 23:27:08,851 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 23:27:08,852 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:27:08,853 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:27:08,853 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:27:08,854 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:27:08,854 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 23:27:08,855 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 23:27:08,855 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 23:27:08,856 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:27:08,856 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:27:08,857 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:27:08,857 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:27:08,858 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 23:27:08,859 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 23:27:08,859 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 23:27:08,860 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:27:08,860 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:27:08,861 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:27:08,861 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:27:08,862 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:27:08,862 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:27:08,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:27:08,863 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:27:08,864 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:27:08,864 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 23:27:08,864 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 23:27:08,864 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 23:27:08,865 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 23:27:08,865 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_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 613bf9314e4e3fb6e64527ec38c7e6b39400e524de37a5103e9f06d9db406d3d [2023-12-02 23:27:09,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:27:09,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:27:09,121 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:27:09,122 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:27:09,123 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:27:09,124 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/weaver/popl20-more-queue-add-2-nl.wvr.c [2023-12-02 23:27:11,876 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:27:12,028 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:27:12,028 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/sv-benchmarks/c/weaver/popl20-more-queue-add-2-nl.wvr.c [2023-12-02 23:27:12,035 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/bin/ukojak-verify-Qdu7aM0XO9/data/c1b8cd4c6/8fea3268360c49de9e22fbdf269575b5/FLAG7ec3d6e13 [2023-12-02 23:27:12,049 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/bin/ukojak-verify-Qdu7aM0XO9/data/c1b8cd4c6/8fea3268360c49de9e22fbdf269575b5 [2023-12-02 23:27:12,051 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:27:12,052 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:27:12,053 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:27:12,053 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:27:12,057 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:27:12,057 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:27:12" (1/1) ... [2023-12-02 23:27:12,058 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24f8d46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:12, skipping insertion in model container [2023-12-02 23:27:12,058 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:27:12" (1/1) ... [2023-12-02 23:27:12,081 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:27:12,256 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:27:12,266 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:27:12,290 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:27:12,297 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 23:27:12,297 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 23:27:12,303 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:27:12,303 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:12 WrapperNode [2023-12-02 23:27:12,303 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:27:12,304 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:27:12,304 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:27:12,304 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:27:12,309 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:12" (1/1) ... [2023-12-02 23:27:12,317 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:12" (1/1) ... [2023-12-02 23:27:12,340 INFO L138 Inliner]: procedures = 25, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 94 [2023-12-02 23:27:12,340 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:27:12,341 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:27:12,341 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:27:12,341 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:27:12,348 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:12" (1/1) ... [2023-12-02 23:27:12,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:12" (1/1) ... [2023-12-02 23:27:12,351 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:12" (1/1) ... [2023-12-02 23:27:12,351 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:12" (1/1) ... [2023-12-02 23:27:12,358 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:12" (1/1) ... [2023-12-02 23:27:12,361 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:12" (1/1) ... [2023-12-02 23:27:12,362 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:12" (1/1) ... [2023-12-02 23:27:12,363 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:12" (1/1) ... [2023-12-02 23:27:12,366 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:27:12,366 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:27:12,366 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:27:12,367 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:27:12,367 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:12" (1/1) ... [2023-12-02 23:27:12,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:27:12,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:27:12,395 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:27:12,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:27:12,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:27:12,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 23:27:12,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 23:27:12,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 23:27:12,429 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-02 23:27:12,429 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-02 23:27:12,429 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-02 23:27:12,429 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-02 23:27:12,429 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 23:27:12,429 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 23:27:12,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 23:27:12,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-02 23:27:12,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-02 23:27:12,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 23:27:12,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:27:12,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:27:12,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 23:27:12,433 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-02 23:27:12,526 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:27:12,528 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:27:12,772 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:27:12,877 WARN L1821 r$LargeBlockEncoding]: Complex 2:4 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2023-12-02 23:27:12,910 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: havoc #t~mem2;#t~post3 := ~q_back~0;assume 1 + #t~post3 >= -2147483648;assume 1 + #t~post3 <= 2147483647;~q_back~0 := 1 + #t~post3;havoc #t~post3;). Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:296) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-02 23:27:12,914 INFO L158 Benchmark]: Toolchain (without parser) took 861.20ms. Allocated memory is still 163.6MB. Free memory was 124.1MB in the beginning and 77.5MB in the end (delta: 46.6MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-12-02 23:27:12,915 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 163.6MB. Free memory is still 129.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:27:12,915 INFO L158 Benchmark]: CACSL2BoogieTranslator took 250.41ms. Allocated memory is still 163.6MB. Free memory was 124.1MB in the beginning and 112.0MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 23:27:12,916 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.26ms. Allocated memory is still 163.6MB. Free memory was 112.0MB in the beginning and 110.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:27:12,917 INFO L158 Benchmark]: Boogie Preprocessor took 24.95ms. Allocated memory is still 163.6MB. Free memory was 110.5MB in the beginning and 108.9MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 23:27:12,917 INFO L158 Benchmark]: RCFGBuilder took 546.00ms. Allocated memory is still 163.6MB. Free memory was 108.4MB in the beginning and 77.5MB in the end (delta: 30.9MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-12-02 23:27:12,921 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 163.6MB. Free memory is still 129.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 250.41ms. Allocated memory is still 163.6MB. Free memory was 124.1MB in the beginning and 112.0MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.26ms. Allocated memory is still 163.6MB. Free memory was 112.0MB in the beginning and 110.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.95ms. Allocated memory is still 163.6MB. Free memory was 110.5MB in the beginning and 108.9MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 546.00ms. Allocated memory is still 163.6MB. Free memory was 108.4MB in the beginning and 77.5MB in the end (delta: 30.9MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: havoc #t~mem2;#t~post3 := ~q_back~0;assume 1 + #t~post3 >= -2147483648;assume 1 + #t~post3 <= 2147483647;~q_back~0 := 1 + #t~post3;havoc #t~post3;). Is there illegal control flow (e.g. loops) within an atomic block? de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: havoc #t~mem2;#t~post3 := ~q_back~0;assume 1 + #t~post3 >= -2147483648;assume 1 + #t~post3 <= 2147483647;~q_back~0 := 1 + #t~post3;havoc #t~post3;). Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:333) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-02 23:27:12,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/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_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/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_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-queue-add-2-nl.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 613bf9314e4e3fb6e64527ec38c7e6b39400e524de37a5103e9f06d9db406d3d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:27:14,860 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:27:14,935 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf [2023-12-02 23:27:14,966 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:27:14,967 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 23:27:14,968 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 23:27:14,968 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:27:14,969 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:27:14,970 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:27:14,970 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:27:14,971 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 23:27:14,971 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 23:27:14,972 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:27:14,972 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:27:14,973 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:27:14,973 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:27:14,974 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 23:27:14,974 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 23:27:14,975 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 23:27:14,975 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 23:27:14,976 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 23:27:14,976 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 23:27:14,977 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:27:14,977 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:27:14,978 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:27:14,978 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:27:14,979 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:27:14,979 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 23:27:14,980 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 23:27:14,980 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:27:14,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:27:14,981 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:27:14,982 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:27:14,982 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 23:27:14,983 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 23:27:14,983 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 23:27:14,983 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 23:27:14,983 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 23:27:14,983 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 23:27:14,984 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_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 613bf9314e4e3fb6e64527ec38c7e6b39400e524de37a5103e9f06d9db406d3d [2023-12-02 23:27:15,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:27:15,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:27:15,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:27:15,285 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:27:15,285 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:27:15,286 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/weaver/popl20-more-queue-add-2-nl.wvr.c [2023-12-02 23:27:18,083 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:27:18,280 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:27:18,280 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/sv-benchmarks/c/weaver/popl20-more-queue-add-2-nl.wvr.c [2023-12-02 23:27:18,288 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/bin/ukojak-verify-Qdu7aM0XO9/data/8e74803f2/0d3f9e2aa6d44ea39dc0c7bad9715ecf/FLAG7794ca571 [2023-12-02 23:27:18,300 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/bin/ukojak-verify-Qdu7aM0XO9/data/8e74803f2/0d3f9e2aa6d44ea39dc0c7bad9715ecf [2023-12-02 23:27:18,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:27:18,304 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:27:18,306 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:27:18,306 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:27:18,309 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:27:18,310 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:27:18" (1/1) ... [2023-12-02 23:27:18,311 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@209ad328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:18, skipping insertion in model container [2023-12-02 23:27:18,311 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:27:18" (1/1) ... [2023-12-02 23:27:18,339 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:27:18,540 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:27:18,555 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-02 23:27:18,561 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:27:18,581 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:27:18,586 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:27:18,613 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:27:18,624 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 23:27:18,624 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 23:27:18,632 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:27:18,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:18 WrapperNode [2023-12-02 23:27:18,633 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:27:18,634 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:27:18,634 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:27:18,634 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:27:18,642 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:18" (1/1) ... [2023-12-02 23:27:18,653 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:18" (1/1) ... [2023-12-02 23:27:18,675 INFO L138 Inliner]: procedures = 27, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 90 [2023-12-02 23:27:18,675 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:27:18,676 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:27:18,676 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:27:18,676 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:27:18,686 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:18" (1/1) ... [2023-12-02 23:27:18,686 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:18" (1/1) ... [2023-12-02 23:27:18,690 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:18" (1/1) ... [2023-12-02 23:27:18,691 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:18" (1/1) ... [2023-12-02 23:27:18,701 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:18" (1/1) ... [2023-12-02 23:27:18,704 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:18" (1/1) ... [2023-12-02 23:27:18,707 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:18" (1/1) ... [2023-12-02 23:27:18,708 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:18" (1/1) ... [2023-12-02 23:27:18,712 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:27:18,713 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:27:18,713 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:27:18,713 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:27:18,714 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:18" (1/1) ... [2023-12-02 23:27:18,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:27:18,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:27:18,743 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:27:18,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:27:18,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:27:18,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 23:27:18,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 23:27:18,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 23:27:18,781 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-02 23:27:18,781 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-02 23:27:18,781 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-02 23:27:18,781 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-02 23:27:18,781 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 23:27:18,782 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 23:27:18,782 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-02 23:27:18,782 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-02 23:27:18,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 23:27:18,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:27:18,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:27:18,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 23:27:18,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 23:27:18,784 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-02 23:27:18,890 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:27:18,892 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:27:19,261 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:27:19,372 WARN L1821 r$LargeBlockEncoding]: Complex 2:4 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2023-12-02 23:27:19,405 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: havoc #t~mem2;#t~post3 := ~q_back~0;assume ~bvsle~33(6442450944bv33, ~bvadd~33(1bv33, ~sign_extend~33~32(#t~post3)));assume ~bvsle~33(~bvadd~33(1bv33, ~sign_extend~33~32(#t~post3)), 2147483647bv33);~q_back~0 := ~bvadd~32(1bv32, #t~post3);havoc #t~post3;). Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:296) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-02 23:27:19,409 INFO L158 Benchmark]: Toolchain (without parser) took 1104.16ms. Allocated memory is still 92.3MB. Free memory was 69.0MB in the beginning and 41.7MB in the end (delta: 27.3MB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB. [2023-12-02 23:27:19,410 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 67.1MB. Free memory was 43.6MB in the beginning and 43.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:27:19,411 INFO L158 Benchmark]: CACSL2BoogieTranslator took 327.68ms. Allocated memory is still 92.3MB. Free memory was 69.0MB in the beginning and 55.0MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 23:27:19,411 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.20ms. Allocated memory is still 92.3MB. Free memory was 55.0MB in the beginning and 53.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 23:27:19,412 INFO L158 Benchmark]: Boogie Preprocessor took 36.35ms. Allocated memory is still 92.3MB. Free memory was 53.1MB in the beginning and 51.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 23:27:19,413 INFO L158 Benchmark]: RCFGBuilder took 694.84ms. Allocated memory is still 92.3MB. Free memory was 51.3MB in the beginning and 41.7MB in the end (delta: 9.5MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2023-12-02 23:27:19,416 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 67.1MB. Free memory was 43.6MB in the beginning and 43.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 327.68ms. Allocated memory is still 92.3MB. Free memory was 69.0MB in the beginning and 55.0MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.20ms. Allocated memory is still 92.3MB. Free memory was 55.0MB in the beginning and 53.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.35ms. Allocated memory is still 92.3MB. Free memory was 53.1MB in the beginning and 51.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 694.84ms. Allocated memory is still 92.3MB. Free memory was 51.3MB in the beginning and 41.7MB in the end (delta: 9.5MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: havoc #t~mem2;#t~post3 := ~q_back~0;assume ~bvsle~33(6442450944bv33, ~bvadd~33(1bv33, ~sign_extend~33~32(#t~post3)));assume ~bvsle~33(~bvadd~33(1bv33, ~sign_extend~33~32(#t~post3)), 2147483647bv33);~q_back~0 := ~bvadd~32(1bv32, #t~post3);havoc #t~post3;). Is there illegal control flow (e.g. loops) within an atomic block? de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: havoc #t~mem2;#t~post3 := ~q_back~0;assume ~bvsle~33(6442450944bv33, ~bvadd~33(1bv33, ~sign_extend~33~32(#t~post3)));assume ~bvsle~33(~bvadd~33(1bv33, ~sign_extend~33~32(#t~post3)), 2147483647bv33);~q_back~0 := ~bvadd~32(1bv32, #t~post3);havoc #t~post3;). Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:333) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-02 23:27:19,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d7872a-4e0f-4bb1-b366-2574a5a5c8f2/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~mem2;#t~post3 := ~q_back~0;assume ~bvsle~33(6442450944bv33, ~bvadd~33(1bv33, ~sign_extend~33~32(#t~post3)));assume ~bvsle~33(~bvadd~33(1bv33, ~sign_extend~33~32(#t~post3)), 2147483647bv33);~q_back~0 := ~bvadd~32(1bv32, #t~post3);havoc #t~post3;). Is there illegal control flow (e.g. loops) within an atomic block?