./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-two-queue.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_21c6a31e-3093-4fc8-987c-d0e211ab1428/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c6a31e-3093-4fc8-987c-d0e211ab1428/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c6a31e-3093-4fc8-987c-d0e211ab1428/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c6a31e-3093-4fc8-987c-d0e211ab1428/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-two-queue.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c6a31e-3093-4fc8-987c-d0e211ab1428/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c6a31e-3093-4fc8-987c-d0e211ab1428/bin/ukojak-verify-afCqCEvfdi --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 2b29a4c23931df07495caab7fd70ec22fec28fcea21b47e1c8eb19fb44a778d8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:03:57,718 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:03:57,798 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c6a31e-3093-4fc8-987c-d0e211ab1428/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 23:03:57,804 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:03:57,804 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:03:57,828 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:03:57,829 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:03:57,830 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:03:57,831 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:03:57,831 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:03:57,832 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:03:57,833 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:03:57,833 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:03:57,834 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:03:57,834 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:03:57,835 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:03:57,835 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:03:57,836 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:03:57,836 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:03:57,837 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:03:57,837 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:03:57,838 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:03:57,838 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:03:57,839 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:03:57,839 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:03:57,840 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:03:57,840 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:03:57,841 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:03:57,841 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:03:57,842 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:03:57,842 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:03:57,843 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:03:57,843 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:03:57,844 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_21c6a31e-3093-4fc8-987c-d0e211ab1428/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c6a31e-3093-4fc8-987c-d0e211ab1428/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b29a4c23931df07495caab7fd70ec22fec28fcea21b47e1c8eb19fb44a778d8 [2023-11-24 23:03:58,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:03:58,178 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:03:58,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:03:58,184 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:03:58,184 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:03:58,186 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c6a31e-3093-4fc8-987c-d0e211ab1428/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/weaver/popl20-two-queue.wvr.c [2023-11-24 23:04:01,415 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:04:01,678 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:04:01,678 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c6a31e-3093-4fc8-987c-d0e211ab1428/sv-benchmarks/c/weaver/popl20-two-queue.wvr.c [2023-11-24 23:04:01,686 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c6a31e-3093-4fc8-987c-d0e211ab1428/bin/ukojak-verify-afCqCEvfdi/data/6db478faa/c43be7d1cdc54880bedc5050d0a34f21/FLAG219050b26 [2023-11-24 23:04:01,701 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c6a31e-3093-4fc8-987c-d0e211ab1428/bin/ukojak-verify-afCqCEvfdi/data/6db478faa/c43be7d1cdc54880bedc5050d0a34f21 [2023-11-24 23:04:01,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:04:01,705 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:04:01,707 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:04:01,707 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:04:01,713 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:04:01,714 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:04:01" (1/1) ... [2023-11-24 23:04:01,715 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7158f269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:01, skipping insertion in model container [2023-11-24 23:04:01,715 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:04:01" (1/1) ... [2023-11-24 23:04:01,745 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:04:02,016 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_21c6a31e-3093-4fc8-987c-d0e211ab1428/sv-benchmarks/c/weaver/popl20-two-queue.wvr.c[3013,3026] [2023-11-24 23:04:02,026 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:04:02,037 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:04:02,062 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_21c6a31e-3093-4fc8-987c-d0e211ab1428/sv-benchmarks/c/weaver/popl20-two-queue.wvr.c[3013,3026] [2023-11-24 23:04:02,066 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:04:02,077 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:04:02,077 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:04:02,084 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:04:02,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:02 WrapperNode [2023-11-24 23:04:02,085 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:04:02,086 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:04:02,087 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:04:02,087 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:04:02,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:02" (1/1) ... [2023-11-24 23:04:02,112 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:02" (1/1) ... [2023-11-24 23:04:02,141 INFO L138 Inliner]: procedures = 24, calls = 43, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 79 [2023-11-24 23:04:02,142 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:04:02,143 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:04:02,143 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:04:02,143 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:04:02,153 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:02" (1/1) ... [2023-11-24 23:04:02,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:02" (1/1) ... [2023-11-24 23:04:02,157 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:02" (1/1) ... [2023-11-24 23:04:02,157 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:02" (1/1) ... [2023-11-24 23:04:02,166 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:02" (1/1) ... [2023-11-24 23:04:02,170 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:02" (1/1) ... [2023-11-24 23:04:02,172 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:02" (1/1) ... [2023-11-24 23:04:02,174 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:02" (1/1) ... [2023-11-24 23:04:02,177 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:04:02,178 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:04:02,178 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:04:02,178 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:04:02,179 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:02" (1/1) ... [2023-11-24 23:04:02,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:04:02,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c6a31e-3093-4fc8-987c-d0e211ab1428/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:04:02,225 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c6a31e-3093-4fc8-987c-d0e211ab1428/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:04:02,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c6a31e-3093-4fc8-987c-d0e211ab1428/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:04:02,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:04:02,276 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-24 23:04:02,276 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-24 23:04:02,276 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-24 23:04:02,277 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-24 23:04:02,277 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:04:02,277 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:04:02,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:04:02,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:04:02,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:04:02,278 INFO L130 BoogieDeclarations]: Found specification of procedure create_fresh_int_array [2023-11-24 23:04:02,278 INFO L138 BoogieDeclarations]: Found implementation of procedure create_fresh_int_array [2023-11-24 23:04:02,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-24 23:04:02,279 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-24 23:04:02,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:04:02,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:04:02,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:04:02,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:04:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:04:02,281 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-24 23:04:02,399 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:04:02,401 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:04:02,727 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:04:02,873 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: call #t~mem3 := read~int(~q1~0.base, ~q1~0.offset + 4 * ~q1_front~0, 4);~i~0 := #t~mem3;havoc #t~mem3;#t~post4 := ~q1_front~0;~q1_front~0 := 1 + #t~post4;havoc #t~post4;). Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:296) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-24 23:04:02,882 INFO L158 Benchmark]: Toolchain (without parser) took 1176.11ms. Allocated memory is still 148.9MB. Free memory was 108.6MB in the beginning and 69.6MB in the end (delta: 39.0MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-24 23:04:02,883 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 111.1MB. Free memory is still 65.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:04:02,884 INFO L158 Benchmark]: CACSL2BoogieTranslator took 378.33ms. Allocated memory is still 148.9MB. Free memory was 108.6MB in the beginning and 96.5MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 23:04:02,885 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.52ms. Allocated memory is still 148.9MB. Free memory was 96.5MB in the beginning and 94.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:04:02,886 INFO L158 Benchmark]: Boogie Preprocessor took 34.66ms. Allocated memory is still 148.9MB. Free memory was 94.7MB in the beginning and 93.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:04:02,887 INFO L158 Benchmark]: RCFGBuilder took 702.68ms. Allocated memory is still 148.9MB. Free memory was 93.1MB in the beginning and 69.6MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-24 23:04:02,890 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 111.1MB. Free memory is still 65.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 378.33ms. Allocated memory is still 148.9MB. Free memory was 108.6MB in the beginning and 96.5MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.52ms. Allocated memory is still 148.9MB. Free memory was 96.5MB in the beginning and 94.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.66ms. Allocated memory is still 148.9MB. Free memory was 94.7MB in the beginning and 93.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 702.68ms. Allocated memory is still 148.9MB. Free memory was 93.1MB in the beginning and 69.6MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: call #t~mem3 := read~int(~q1~0.base, ~q1~0.offset + 4 * ~q1_front~0, 4);~i~0 := #t~mem3;havoc #t~mem3;#t~post4 := ~q1_front~0;~q1_front~0 := 1 + #t~post4;havoc #t~post4;). Is there illegal control flow (e.g. loops) within an atomic block? de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: call #t~mem3 := read~int(~q1~0.base, ~q1~0.offset + 4 * ~q1_front~0, 4);~i~0 := #t~mem3;havoc #t~mem3;#t~post4 := ~q1_front~0;~q1_front~0 := 1 + #t~post4;havoc #t~post4;). Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:333) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-24 23:04:02,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c6a31e-3093-4fc8-987c-d0e211ab1428/bin/ukojak-verify-afCqCEvfdi/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c6a31e-3093-4fc8-987c-d0e211ab1428/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c6a31e-3093-4fc8-987c-d0e211ab1428/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c6a31e-3093-4fc8-987c-d0e211ab1428/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c6a31e-3093-4fc8-987c-d0e211ab1428/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-two-queue.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c6a31e-3093-4fc8-987c-d0e211ab1428/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c6a31e-3093-4fc8-987c-d0e211ab1428/bin/ukojak-verify-afCqCEvfdi --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 2b29a4c23931df07495caab7fd70ec22fec28fcea21b47e1c8eb19fb44a778d8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:04:05,604 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:04:05,698 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c6a31e-3093-4fc8-987c-d0e211ab1428/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-24 23:04:05,732 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:04:05,734 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:04:05,734 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:04:05,735 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:04:05,736 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:04:05,737 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:04:05,738 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:04:05,738 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:04:05,739 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:04:05,740 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:04:05,740 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:04:05,741 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:04:05,742 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:04:05,742 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:04:05,743 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:04:05,744 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:04:05,744 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:04:05,745 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:04:05,746 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:04:05,747 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:04:05,747 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:04:05,748 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:04:05,749 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:04:05,749 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-24 23:04:05,750 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:04:05,750 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:04:05,751 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:04:05,752 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:04:05,752 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:04:05,753 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:04:05,753 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:04:05,754 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:04:05,754 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-24 23:04:05,754 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:04:05,755 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_21c6a31e-3093-4fc8-987c-d0e211ab1428/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c6a31e-3093-4fc8-987c-d0e211ab1428/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b29a4c23931df07495caab7fd70ec22fec28fcea21b47e1c8eb19fb44a778d8 [2023-11-24 23:04:06,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:04:06,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:04:06,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:04:06,195 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:04:06,195 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:04:06,197 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c6a31e-3093-4fc8-987c-d0e211ab1428/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/weaver/popl20-two-queue.wvr.c [2023-11-24 23:04:09,456 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:04:09,761 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:04:09,762 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c6a31e-3093-4fc8-987c-d0e211ab1428/sv-benchmarks/c/weaver/popl20-two-queue.wvr.c [2023-11-24 23:04:09,776 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c6a31e-3093-4fc8-987c-d0e211ab1428/bin/ukojak-verify-afCqCEvfdi/data/fa03bdf35/2587bf8508ca487695f075ef770e5c95/FLAG4f7dd0aa3 [2023-11-24 23:04:09,793 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c6a31e-3093-4fc8-987c-d0e211ab1428/bin/ukojak-verify-afCqCEvfdi/data/fa03bdf35/2587bf8508ca487695f075ef770e5c95 [2023-11-24 23:04:09,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:04:09,798 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:04:09,800 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:04:09,800 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:04:09,806 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:04:09,807 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:04:09" (1/1) ... [2023-11-24 23:04:09,809 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ceb5c52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:09, skipping insertion in model container [2023-11-24 23:04:09,809 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:04:09" (1/1) ... [2023-11-24 23:04:09,838 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:04:10,122 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_21c6a31e-3093-4fc8-987c-d0e211ab1428/sv-benchmarks/c/weaver/popl20-two-queue.wvr.c[3013,3026] [2023-11-24 23:04:10,146 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:04:10,169 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-24 23:04:10,181 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:04:10,213 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_21c6a31e-3093-4fc8-987c-d0e211ab1428/sv-benchmarks/c/weaver/popl20-two-queue.wvr.c[3013,3026] [2023-11-24 23:04:10,221 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:04:10,233 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:04:10,281 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_21c6a31e-3093-4fc8-987c-d0e211ab1428/sv-benchmarks/c/weaver/popl20-two-queue.wvr.c[3013,3026] [2023-11-24 23:04:10,286 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:04:10,304 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:04:10,306 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:04:10,314 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:04:10,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:10 WrapperNode [2023-11-24 23:04:10,315 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:04:10,317 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:04:10,317 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:04:10,317 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:04:10,326 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:10" (1/1) ... [2023-11-24 23:04:10,357 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:10" (1/1) ... [2023-11-24 23:04:10,396 INFO L138 Inliner]: procedures = 26, calls = 43, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 74 [2023-11-24 23:04:10,396 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:04:10,397 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:04:10,397 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:04:10,398 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:04:10,408 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:10" (1/1) ... [2023-11-24 23:04:10,408 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:10" (1/1) ... [2023-11-24 23:04:10,431 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:10" (1/1) ... [2023-11-24 23:04:10,431 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:10" (1/1) ... [2023-11-24 23:04:10,440 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:10" (1/1) ... [2023-11-24 23:04:10,457 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:10" (1/1) ... [2023-11-24 23:04:10,459 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:10" (1/1) ... [2023-11-24 23:04:10,468 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:10" (1/1) ... [2023-11-24 23:04:10,471 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:04:10,472 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:04:10,473 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:04:10,473 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:04:10,474 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:10" (1/1) ... [2023-11-24 23:04:10,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:04:10,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c6a31e-3093-4fc8-987c-d0e211ab1428/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:04:10,514 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c6a31e-3093-4fc8-987c-d0e211ab1428/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:04:10,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c6a31e-3093-4fc8-987c-d0e211ab1428/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:04:10,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:04:10,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:04:10,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:04:10,568 INFO L130 BoogieDeclarations]: Found specification of procedure create_fresh_int_array [2023-11-24 23:04:10,568 INFO L138 BoogieDeclarations]: Found implementation of procedure create_fresh_int_array [2023-11-24 23:04:10,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-24 23:04:10,568 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-24 23:04:10,569 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-24 23:04:10,569 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-24 23:04:10,570 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-24 23:04:10,571 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:04:10,571 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:04:10,572 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-24 23:04:10,572 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-24 23:04:10,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:04:10,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:04:10,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:04:10,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:04:10,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-24 23:04:10,574 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-24 23:04:10,807 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:04:10,810 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:04:11,128 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:04:11,242 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: call #t~mem3 := read~intINTTYPE4(~q1~0.base, ~bvadd~32(~q1~0.offset, ~bvmul~32(4bv32, ~q1_front~0)), 4bv32);~i~0 := #t~mem3;havoc #t~mem3;#t~post4 := ~q1_front~0;~q1_front~0 := ~bvadd~32(1bv32, #t~post4);havoc #t~post4;). Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:296) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-24 23:04:11,246 INFO L158 Benchmark]: Toolchain (without parser) took 1447.00ms. Allocated memory is still 83.9MB. Free memory was 60.0MB in the beginning and 37.7MB in the end (delta: 22.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-24 23:04:11,247 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 83.9MB. Free memory was 59.6MB in the beginning and 59.6MB in the end (delta: 18.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:04:11,248 INFO L158 Benchmark]: CACSL2BoogieTranslator took 515.58ms. Allocated memory is still 83.9MB. Free memory was 59.7MB in the beginning and 45.8MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-24 23:04:11,248 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.74ms. Allocated memory is still 83.9MB. Free memory was 45.8MB in the beginning and 44.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:04:11,249 INFO L158 Benchmark]: Boogie Preprocessor took 74.51ms. Allocated memory is still 83.9MB. Free memory was 44.1MB in the beginning and 42.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:04:11,250 INFO L158 Benchmark]: RCFGBuilder took 772.11ms. Allocated memory is still 83.9MB. Free memory was 42.1MB in the beginning and 37.7MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-24 23:04:11,253 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 83.9MB. Free memory was 59.6MB in the beginning and 59.6MB in the end (delta: 18.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 515.58ms. Allocated memory is still 83.9MB. Free memory was 59.7MB in the beginning and 45.8MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.74ms. Allocated memory is still 83.9MB. Free memory was 45.8MB in the beginning and 44.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 74.51ms. Allocated memory is still 83.9MB. Free memory was 44.1MB in the beginning and 42.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 772.11ms. Allocated memory is still 83.9MB. Free memory was 42.1MB in the beginning and 37.7MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: call #t~mem3 := read~intINTTYPE4(~q1~0.base, ~bvadd~32(~q1~0.offset, ~bvmul~32(4bv32, ~q1_front~0)), 4bv32);~i~0 := #t~mem3;havoc #t~mem3;#t~post4 := ~q1_front~0;~q1_front~0 := ~bvadd~32(1bv32, #t~post4);havoc #t~post4;). Is there illegal control flow (e.g. loops) within an atomic block? de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: call #t~mem3 := read~intINTTYPE4(~q1~0.base, ~bvadd~32(~q1~0.offset, ~bvmul~32(4bv32, ~q1_front~0)), 4bv32);~i~0 := #t~mem3;havoc #t~mem3;#t~post4 := ~q1_front~0;~q1_front~0 := ~bvadd~32(1bv32, #t~post4);havoc #t~post4;). Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:333) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-24 23:04:11,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c6a31e-3093-4fc8-987c-d0e211ab1428/bin/ukojak-verify-afCqCEvfdi/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: call #t~mem3 := read~intINTTYPE4(~q1~0.base, ~bvadd~32(~q1~0.offset, ~bvmul~32(4bv32, ~q1_front~0)), 4bv32);~i~0 := #t~mem3;havoc #t~mem3;#t~post4 := ~q1_front~0;~q1_front~0 := ~bvadd~32(1bv32, #t~post4);havoc #t~post4;). Is there illegal control flow (e.g. loops) within an atomic block?