./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad9c625-11a7-4ca0-9208-88fae2327994/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad9c625-11a7-4ca0-9208-88fae2327994/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad9c625-11a7-4ca0-9208-88fae2327994/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad9c625-11a7-4ca0-9208-88fae2327994/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad9c625-11a7-4ca0-9208-88fae2327994/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad9c625-11a7-4ca0-9208-88fae2327994/bin/ukojak-verify-1t5iHCbJaC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ec2334e7e9ec2636c6abf161aed91fff94fbff3709d38c7edad92256c3b5dc81 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:21:48,383 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:21:48,505 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad9c625-11a7-4ca0-9208-88fae2327994/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-23 20:21:48,512 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:21:48,513 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:21:48,553 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:21:48,554 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:21:48,554 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:21:48,555 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:21:48,556 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:21:48,557 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:21:48,557 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:21:48,558 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:21:48,558 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:21:48,559 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:21:48,560 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:21:48,563 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:21:48,567 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:21:48,567 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:21:48,568 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:21:48,569 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:21:48,570 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:21:48,570 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:21:48,571 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:21:48,571 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:21:48,572 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:21:48,572 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:21:48,573 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:21:48,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:21:48,574 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:21:48,575 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:21:48,575 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:21:48,575 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:21:48,576 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:21:48,576 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:21:48,576 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_aad9c625-11a7-4ca0-9208-88fae2327994/bin/ukojak-verify-1t5iHCbJaC/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad9c625-11a7-4ca0-9208-88fae2327994/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec2334e7e9ec2636c6abf161aed91fff94fbff3709d38c7edad92256c3b5dc81 [2023-11-23 20:21:48,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:21:48,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:21:48,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:21:48,887 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:21:48,887 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:21:48,889 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad9c625-11a7-4ca0-9208-88fae2327994/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2023-11-23 20:21:52,075 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:21:52,288 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:21:52,289 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad9c625-11a7-4ca0-9208-88fae2327994/sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2023-11-23 20:21:52,298 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad9c625-11a7-4ca0-9208-88fae2327994/bin/ukojak-verify-1t5iHCbJaC/data/bb8b006ec/cb5fa6e495164eb995ca2ef79c7efa23/FLAGc352d2a9c [2023-11-23 20:21:52,313 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad9c625-11a7-4ca0-9208-88fae2327994/bin/ukojak-verify-1t5iHCbJaC/data/bb8b006ec/cb5fa6e495164eb995ca2ef79c7efa23 [2023-11-23 20:21:52,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:21:52,318 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:21:52,319 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:21:52,320 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:21:52,327 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:21:52,328 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:21:52" (1/1) ... [2023-11-23 20:21:52,330 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57930e4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:52, skipping insertion in model container [2023-11-23 20:21:52,330 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:21:52" (1/1) ... [2023-11-23 20:21:52,363 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:21:52,586 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:21:52,598 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:21:52,645 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:21:52,655 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:21:52,655 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:21:52,663 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:21:52,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:52 WrapperNode [2023-11-23 20:21:52,664 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:21:52,665 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:21:52,665 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:21:52,666 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:21:52,674 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:52" (1/1) ... [2023-11-23 20:21:52,687 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:52" (1/1) ... [2023-11-23 20:21:52,717 INFO L138 Inliner]: procedures = 26, calls = 94, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 146 [2023-11-23 20:21:52,717 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:21:52,718 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:21:52,718 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:21:52,718 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:21:52,730 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:52" (1/1) ... [2023-11-23 20:21:52,731 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:52" (1/1) ... [2023-11-23 20:21:52,736 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:52" (1/1) ... [2023-11-23 20:21:52,737 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:52" (1/1) ... [2023-11-23 20:21:52,750 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:52" (1/1) ... [2023-11-23 20:21:52,755 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:52" (1/1) ... [2023-11-23 20:21:52,759 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:52" (1/1) ... [2023-11-23 20:21:52,761 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:52" (1/1) ... [2023-11-23 20:21:52,766 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:21:52,767 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:21:52,767 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:21:52,767 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:21:52,768 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:52" (1/1) ... [2023-11-23 20:21:52,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:21:52,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad9c625-11a7-4ca0-9208-88fae2327994/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:21:52,810 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad9c625-11a7-4ca0-9208-88fae2327994/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:21:52,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad9c625-11a7-4ca0-9208-88fae2327994/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:21:52,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:21:52,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:21:52,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:21:52,849 INFO L130 BoogieDeclarations]: Found specification of procedure create_fresh_int_array [2023-11-23 20:21:52,850 INFO L138 BoogieDeclarations]: Found implementation of procedure create_fresh_int_array [2023-11-23 20:21:52,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:21:52,850 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-23 20:21:52,850 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-23 20:21:52,850 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-23 20:21:52,850 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-23 20:21:52,851 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-23 20:21:52,851 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-23 20:21:52,851 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-23 20:21:52,851 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-23 20:21:52,851 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:21:52,851 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:21:52,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:21:52,851 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-23 20:21:52,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-23 20:21:52,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:21:52,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:21:52,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:21:52,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:21:52,854 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 20:21:53,004 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:21:53,006 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:21:53,616 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:21:54,035 WARN L1821 r$LargeBlockEncoding]: Complex 2:4 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2023-11-23 20:21:54,067 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: havoc #t~mem15;#t~post16 := ~client_back~0;assume 1 + #t~post16 >= -2147483648;assume 1 + #t~post16 <= 2147483647;~client_back~0 := 1 + #t~post16;havoc #t~post16;). Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:296) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-23 20:21:54,072 INFO L158 Benchmark]: Toolchain (without parser) took 1752.97ms. Allocated memory is still 174.1MB. Free memory was 127.0MB in the beginning and 103.3MB in the end (delta: 23.7MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. [2023-11-23 20:21:54,072 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 89.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:21:54,074 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.95ms. Allocated memory is still 174.1MB. Free memory was 127.0MB in the beginning and 113.0MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 20:21:54,074 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.25ms. Allocated memory is still 174.1MB. Free memory was 113.0MB in the beginning and 110.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:21:54,075 INFO L158 Benchmark]: Boogie Preprocessor took 48.28ms. Allocated memory is still 174.1MB. Free memory was 110.9MB in the beginning and 108.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:21:54,077 INFO L158 Benchmark]: RCFGBuilder took 1302.86ms. Allocated memory is still 174.1MB. Free memory was 108.8MB in the beginning and 103.3MB in the end (delta: 5.5MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. [2023-11-23 20:21:54,081 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 89.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 344.95ms. Allocated memory is still 174.1MB. Free memory was 127.0MB in the beginning and 113.0MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.25ms. Allocated memory is still 174.1MB. Free memory was 113.0MB in the beginning and 110.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.28ms. Allocated memory is still 174.1MB. Free memory was 110.9MB in the beginning and 108.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1302.86ms. Allocated memory is still 174.1MB. Free memory was 108.8MB in the beginning and 103.3MB in the end (delta: 5.5MB). Peak memory consumption was 41.1MB. 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: havoc #t~mem15;#t~post16 := ~client_back~0;assume 1 + #t~post16 >= -2147483648;assume 1 + #t~post16 <= 2147483647;~client_back~0 := 1 + #t~post16;havoc #t~post16;). 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~mem15;#t~post16 := ~client_back~0;assume 1 + #t~post16 >= -2147483648;assume 1 + #t~post16 <= 2147483647;~client_back~0 := 1 + #t~post16;havoc #t~post16;). Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:333) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-23 20:21:54,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad9c625-11a7-4ca0-9208-88fae2327994/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_aad9c625-11a7-4ca0-9208-88fae2327994/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad9c625-11a7-4ca0-9208-88fae2327994/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad9c625-11a7-4ca0-9208-88fae2327994/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad9c625-11a7-4ca0-9208-88fae2327994/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad9c625-11a7-4ca0-9208-88fae2327994/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad9c625-11a7-4ca0-9208-88fae2327994/bin/ukojak-verify-1t5iHCbJaC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ec2334e7e9ec2636c6abf161aed91fff94fbff3709d38c7edad92256c3b5dc81 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:21:56,786 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:21:56,912 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad9c625-11a7-4ca0-9208-88fae2327994/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf [2023-11-23 20:21:56,970 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:21:56,971 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:21:56,972 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:21:56,973 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:21:56,974 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:21:56,975 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:21:56,980 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:21:56,981 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:21:56,981 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:21:56,981 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:21:56,982 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:21:56,982 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:21:56,983 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:21:56,983 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:21:56,983 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:21:56,984 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:21:56,984 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:21:56,985 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:21:56,985 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:21:56,986 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:21:56,986 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:21:56,986 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:21:56,987 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:21:56,987 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:21:56,988 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:21:56,988 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-23 20:21:56,989 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:21:56,990 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:21:56,991 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:21:56,991 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:21:56,991 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:21:56,992 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:21:56,992 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:21:56,992 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:21:56,992 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-23 20:21:56,993 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:21:56,994 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_aad9c625-11a7-4ca0-9208-88fae2327994/bin/ukojak-verify-1t5iHCbJaC/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad9c625-11a7-4ca0-9208-88fae2327994/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec2334e7e9ec2636c6abf161aed91fff94fbff3709d38c7edad92256c3b5dc81 [2023-11-23 20:21:57,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:21:57,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:21:57,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:21:57,490 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:21:57,492 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:21:57,494 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad9c625-11a7-4ca0-9208-88fae2327994/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2023-11-23 20:22:00,685 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:22:00,982 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:22:00,982 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad9c625-11a7-4ca0-9208-88fae2327994/sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2023-11-23 20:22:00,993 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad9c625-11a7-4ca0-9208-88fae2327994/bin/ukojak-verify-1t5iHCbJaC/data/ed1a216b2/3c5fa7b51b9540e5bbd43a4e4e59da26/FLAG956577f5e [2023-11-23 20:22:01,008 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad9c625-11a7-4ca0-9208-88fae2327994/bin/ukojak-verify-1t5iHCbJaC/data/ed1a216b2/3c5fa7b51b9540e5bbd43a4e4e59da26 [2023-11-23 20:22:01,010 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:22:01,012 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:22:01,013 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:22:01,013 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:22:01,017 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:22:01,018 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:22:01" (1/1) ... [2023-11-23 20:22:01,019 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6674924 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:22:01, skipping insertion in model container [2023-11-23 20:22:01,019 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:22:01" (1/1) ... [2023-11-23 20:22:01,055 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:22:01,351 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:22:01,376 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-23 20:22:01,389 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:22:01,451 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:22:01,456 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:22:01,492 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:22:01,503 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:22:01,504 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:22:01,512 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:22:01,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:22:01 WrapperNode [2023-11-23 20:22:01,513 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:22:01,514 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:22:01,514 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:22:01,515 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:22:01,522 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:22:01" (1/1) ... [2023-11-23 20:22:01,552 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:22:01" (1/1) ... [2023-11-23 20:22:01,576 INFO L138 Inliner]: procedures = 28, calls = 94, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 136 [2023-11-23 20:22:01,577 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:22:01,578 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:22:01,578 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:22:01,578 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:22:01,587 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:22:01" (1/1) ... [2023-11-23 20:22:01,588 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:22:01" (1/1) ... [2023-11-23 20:22:01,594 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:22:01" (1/1) ... [2023-11-23 20:22:01,594 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:22:01" (1/1) ... [2023-11-23 20:22:01,611 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:22:01" (1/1) ... [2023-11-23 20:22:01,616 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:22:01" (1/1) ... [2023-11-23 20:22:01,619 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:22:01" (1/1) ... [2023-11-23 20:22:01,622 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:22:01" (1/1) ... [2023-11-23 20:22:01,627 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:22:01,628 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:22:01,629 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:22:01,629 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:22:01,630 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:22:01" (1/1) ... [2023-11-23 20:22:01,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:22:01,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad9c625-11a7-4ca0-9208-88fae2327994/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:22:01,666 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad9c625-11a7-4ca0-9208-88fae2327994/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:22:01,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad9c625-11a7-4ca0-9208-88fae2327994/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:22:01,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:22:01,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:22:01,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:22:01,714 INFO L130 BoogieDeclarations]: Found specification of procedure create_fresh_int_array [2023-11-23 20:22:01,714 INFO L138 BoogieDeclarations]: Found implementation of procedure create_fresh_int_array [2023-11-23 20:22:01,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-23 20:22:01,714 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-23 20:22:01,715 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-23 20:22:01,715 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-23 20:22:01,715 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-23 20:22:01,715 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-23 20:22:01,717 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-23 20:22:01,717 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-23 20:22:01,718 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-23 20:22:01,718 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:22:01,718 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:22:01,718 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-23 20:22:01,718 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-23 20:22:01,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:22:01,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:22:01,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:22:01,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:22:01,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-23 20:22:01,723 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 20:22:01,933 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:22:01,936 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:22:02,693 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:22:03,117 WARN L1821 r$LargeBlockEncoding]: Complex 2:4 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2023-11-23 20:22:03,168 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~mem15;#t~post16 := ~client_back~0;assume ~bvsle~33(6442450944bv33, ~bvadd~33(1bv33, ~sign_extend~33~32(#t~post16)));assume ~bvsle~33(~bvadd~33(1bv33, ~sign_extend~33~32(#t~post16)), 2147483647bv33);~client_back~0 := ~bvadd~32(1bv32, #t~post16);havoc #t~post16;). Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:296) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-23 20:22:03,175 INFO L158 Benchmark]: Toolchain (without parser) took 2161.36ms. Allocated memory was 79.7MB in the beginning and 107.0MB in the end (delta: 27.3MB). Free memory was 55.4MB in the beginning and 78.2MB in the end (delta: -22.8MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. [2023-11-23 20:22:03,175 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 79.7MB. Free memory was 55.5MB in the beginning and 55.5MB in the end (delta: 22.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:22:03,177 INFO L158 Benchmark]: CACSL2BoogieTranslator took 500.25ms. Allocated memory is still 79.7MB. Free memory was 55.2MB in the beginning and 38.2MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-23 20:22:03,177 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.06ms. Allocated memory is still 79.7MB. Free memory was 38.0MB in the beginning and 58.2MB in the end (delta: -20.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:22:03,179 INFO L158 Benchmark]: Boogie Preprocessor took 49.95ms. Allocated memory is still 79.7MB. Free memory was 58.2MB in the beginning and 55.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:22:03,181 INFO L158 Benchmark]: RCFGBuilder took 1543.98ms. Allocated memory was 79.7MB in the beginning and 107.0MB in the end (delta: 27.3MB). Free memory was 55.7MB in the beginning and 78.2MB in the end (delta: -22.5MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. [2023-11-23 20:22:03,190 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 79.7MB. Free memory was 55.5MB in the beginning and 55.5MB in the end (delta: 22.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 500.25ms. Allocated memory is still 79.7MB. Free memory was 55.2MB in the beginning and 38.2MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.06ms. Allocated memory is still 79.7MB. Free memory was 38.0MB in the beginning and 58.2MB in the end (delta: -20.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.95ms. Allocated memory is still 79.7MB. Free memory was 58.2MB in the beginning and 55.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1543.98ms. Allocated memory was 79.7MB in the beginning and 107.0MB in the end (delta: 27.3MB). Free memory was 55.7MB in the beginning and 78.2MB in the end (delta: -22.5MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: havoc #t~mem15;#t~post16 := ~client_back~0;assume ~bvsle~33(6442450944bv33, ~bvadd~33(1bv33, ~sign_extend~33~32(#t~post16)));assume ~bvsle~33(~bvadd~33(1bv33, ~sign_extend~33~32(#t~post16)), 2147483647bv33);~client_back~0 := ~bvadd~32(1bv32, #t~post16);havoc #t~post16;). 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~mem15;#t~post16 := ~client_back~0;assume ~bvsle~33(6442450944bv33, ~bvadd~33(1bv33, ~sign_extend~33~32(#t~post16)));assume ~bvsle~33(~bvadd~33(1bv33, ~sign_extend~33~32(#t~post16)), 2147483647bv33);~client_back~0 := ~bvadd~32(1bv32, #t~post16);havoc #t~post16;). Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:333) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-23 20:22:03,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad9c625-11a7-4ca0-9208-88fae2327994/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: havoc #t~mem15;#t~post16 := ~client_back~0;assume ~bvsle~33(6442450944bv33, ~bvadd~33(1bv33, ~sign_extend~33~32(#t~post16)));assume ~bvsle~33(~bvadd~33(1bv33, ~sign_extend~33~32(#t~post16)), 2147483647bv33);~client_back~0 := ~bvadd~32(1bv32, #t~post16);havoc #t~post16;). Is there illegal control flow (e.g. loops) within an atomic block?