./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-ext/26_stack_cas.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_ee2eee67-fd4a-430f-ac11-97becac7db91/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2eee67-fd4a-430f-ac11-97becac7db91/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2eee67-fd4a-430f-ac11-97becac7db91/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2eee67-fd4a-430f-ac11-97becac7db91/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/pthread-ext/26_stack_cas.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2eee67-fd4a-430f-ac11-97becac7db91/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2eee67-fd4a-430f-ac11-97becac7db91/bin/ukojak-rkRKPMF4O4 --witnessprinter.witness.filename witness.graphml --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 fa97ad6141e9aa8818b694f4968e766701fe7261f516cd86f7a15e5cf1a3d14d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 23:36:35,800 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 23:36:35,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 23:36:35,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 23:36:35,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 23:36:35,821 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 23:36:35,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 23:36:35,824 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 23:36:35,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 23:36:35,826 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 23:36:35,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 23:36:35,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 23:36:35,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 23:36:35,830 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 23:36:35,831 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 23:36:35,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 23:36:35,833 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 23:36:35,834 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 23:36:35,836 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 23:36:35,838 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 23:36:35,839 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 23:36:35,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 23:36:35,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 23:36:35,842 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 23:36:35,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 23:36:35,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 23:36:35,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 23:36:35,847 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 23:36:35,848 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 23:36:35,849 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 23:36:35,849 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 23:36:35,850 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 23:36:35,851 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 23:36:35,852 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 23:36:35,853 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 23:36:35,853 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 23:36:35,853 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 23:36:35,854 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 23:36:35,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 23:36:35,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 23:36:35,855 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 23:36:35,856 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2eee67-fd4a-430f-ac11-97becac7db91/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-32bit-Kojak_Default.epf [2022-12-14 23:36:35,870 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 23:36:35,871 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 23:36:35,871 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 23:36:35,871 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 23:36:35,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 23:36:35,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 23:36:35,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 23:36:35,872 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 23:36:35,872 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 23:36:35,872 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 23:36:35,872 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 23:36:35,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 23:36:35,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 23:36:35,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 23:36:35,873 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 23:36:35,873 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 23:36:35,873 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 23:36:35,873 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 23:36:35,873 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 23:36:35,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 23:36:35,874 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 23:36:35,874 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 23:36:35,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 23:36:35,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 23:36:35,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 23:36:35,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 23:36:35,874 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 23:36:35,874 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 23:36:35,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 23:36:35,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 23:36:35,875 INFO L138 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_ee2eee67-fd4a-430f-ac11-97becac7db91/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2eee67-fd4a-430f-ac11-97becac7db91/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa97ad6141e9aa8818b694f4968e766701fe7261f516cd86f7a15e5cf1a3d14d [2022-12-14 23:36:36,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 23:36:36,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 23:36:36,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 23:36:36,067 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 23:36:36,067 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 23:36:36,068 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2eee67-fd4a-430f-ac11-97becac7db91/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/pthread-ext/26_stack_cas.i [2022-12-14 23:36:38,672 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 23:36:38,833 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 23:36:38,834 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2eee67-fd4a-430f-ac11-97becac7db91/sv-benchmarks/c/pthread-ext/26_stack_cas.i [2022-12-14 23:36:38,843 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2eee67-fd4a-430f-ac11-97becac7db91/bin/ukojak-rkRKPMF4O4/data/74e32a511/0fc79f86e3ee46938c4839c488cc7c25/FLAG48451a5f6 [2022-12-14 23:36:38,855 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2eee67-fd4a-430f-ac11-97becac7db91/bin/ukojak-rkRKPMF4O4/data/74e32a511/0fc79f86e3ee46938c4839c488cc7c25 [2022-12-14 23:36:38,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 23:36:38,858 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 23:36:38,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 23:36:38,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 23:36:38,862 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 23:36:38,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:36:38" (1/1) ... [2022-12-14 23:36:38,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@376d5da1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:38, skipping insertion in model container [2022-12-14 23:36:38,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:36:38" (1/1) ... [2022-12-14 23:36:38,869 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 23:36:38,895 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 23:36:39,108 WARN L237 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_ee2eee67-fd4a-430f-ac11-97becac7db91/sv-benchmarks/c/pthread-ext/26_stack_cas.i[31152,31165] [2022-12-14 23:36:39,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 23:36:39,122 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 23:36:39,150 WARN L237 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_ee2eee67-fd4a-430f-ac11-97becac7db91/sv-benchmarks/c/pthread-ext/26_stack_cas.i[31152,31165] [2022-12-14 23:36:39,152 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 23:36:39,173 INFO L208 MainTranslator]: Completed translation [2022-12-14 23:36:39,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:39 WrapperNode [2022-12-14 23:36:39,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 23:36:39,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 23:36:39,175 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 23:36:39,175 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 23:36:39,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:39" (1/1) ... [2022-12-14 23:36:39,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:39" (1/1) ... [2022-12-14 23:36:39,206 INFO L138 Inliner]: procedures = 177, calls = 47, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 157 [2022-12-14 23:36:39,207 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 23:36:39,207 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 23:36:39,208 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 23:36:39,208 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 23:36:39,215 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:39" (1/1) ... [2022-12-14 23:36:39,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:39" (1/1) ... [2022-12-14 23:36:39,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:39" (1/1) ... [2022-12-14 23:36:39,217 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:39" (1/1) ... [2022-12-14 23:36:39,221 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:39" (1/1) ... [2022-12-14 23:36:39,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:39" (1/1) ... [2022-12-14 23:36:39,225 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:39" (1/1) ... [2022-12-14 23:36:39,225 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:39" (1/1) ... [2022-12-14 23:36:39,227 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 23:36:39,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 23:36:39,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 23:36:39,228 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 23:36:39,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:39" (1/1) ... [2022-12-14 23:36:39,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 23:36:39,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2eee67-fd4a-430f-ac11-97becac7db91/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 23:36:39,254 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2eee67-fd4a-430f-ac11-97becac7db91/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 23:36:39,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2eee67-fd4a-430f-ac11-97becac7db91/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 23:36:39,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 23:36:39,281 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-12-14 23:36:39,281 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-12-14 23:36:39,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 23:36:39,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_acquire [2022-12-14 23:36:39,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_acquire [2022-12-14 23:36:39,281 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 23:36:39,281 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 23:36:39,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 23:36:39,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 23:36:39,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 23:36:39,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 23:36:39,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_release [2022-12-14 23:36:39,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_release [2022-12-14 23:36:39,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 23:36:39,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 23:36:39,284 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 23:36:39,403 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 23:36:39,405 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 23:36:39,647 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 23:36:39,733 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 23:36:39,734 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-14 23:36:39,734 ERROR L334 CfgBuilder]: Unexpected successor node of atomic block begin: $Ultimate##0 is neither atomic block end nor a sink node. [2022-12-14 23:36:39,735 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) 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) [2022-12-14 23:36:39,738 INFO L158 Benchmark]: Toolchain (without parser) took 879.29ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 81.4MB in the beginning and 106.3MB in the end (delta: -24.9MB). Peak memory consumption was 53.4MB. Max. memory is 16.1GB. [2022-12-14 23:36:39,739 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 117.4MB. Free memory is still 60.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 23:36:39,739 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.82ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 61.0MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 23:36:39,739 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.70ms. Allocated memory is still 117.4MB. Free memory was 61.0MB in the beginning and 58.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 23:36:39,740 INFO L158 Benchmark]: Boogie Preprocessor took 20.00ms. Allocated memory is still 117.4MB. Free memory was 58.9MB in the beginning and 56.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 23:36:39,740 INFO L158 Benchmark]: RCFGBuilder took 508.89ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 56.8MB in the beginning and 106.3MB in the end (delta: -49.5MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2022-12-14 23:36:39,742 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 117.4MB. Free memory is still 60.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 314.82ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 61.0MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.70ms. Allocated memory is still 117.4MB. Free memory was 61.0MB in the beginning and 58.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.00ms. Allocated memory is still 117.4MB. Free memory was 58.9MB in the beginning and 56.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 508.89ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 56.8MB in the beginning and 106.3MB in the end (delta: -49.5MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block? de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:303) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-12-14 23:36:39,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2eee67-fd4a-430f-ac11-97becac7db91/bin/ukojak-rkRKPMF4O4/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_ee2eee67-fd4a-430f-ac11-97becac7db91/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2eee67-fd4a-430f-ac11-97becac7db91/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2eee67-fd4a-430f-ac11-97becac7db91/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2eee67-fd4a-430f-ac11-97becac7db91/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/pthread-ext/26_stack_cas.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2eee67-fd4a-430f-ac11-97becac7db91/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2eee67-fd4a-430f-ac11-97becac7db91/bin/ukojak-rkRKPMF4O4 --witnessprinter.witness.filename witness.graphml --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 fa97ad6141e9aa8818b694f4968e766701fe7261f516cd86f7a15e5cf1a3d14d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 23:36:41,245 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 23:36:41,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 23:36:41,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 23:36:41,259 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 23:36:41,259 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 23:36:41,260 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 23:36:41,261 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 23:36:41,262 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 23:36:41,263 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 23:36:41,263 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 23:36:41,264 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 23:36:41,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 23:36:41,265 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 23:36:41,265 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 23:36:41,266 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 23:36:41,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 23:36:41,267 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 23:36:41,268 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 23:36:41,269 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 23:36:41,270 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 23:36:41,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 23:36:41,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 23:36:41,272 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 23:36:41,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 23:36:41,275 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 23:36:41,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 23:36:41,276 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 23:36:41,276 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 23:36:41,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 23:36:41,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 23:36:41,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 23:36:41,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 23:36:41,278 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 23:36:41,293 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 23:36:41,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 23:36:41,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 23:36:41,294 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 23:36:41,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 23:36:41,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 23:36:41,296 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 23:36:41,297 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2eee67-fd4a-430f-ac11-97becac7db91/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf [2022-12-14 23:36:41,320 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 23:36:41,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 23:36:41,321 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 23:36:41,321 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 23:36:41,322 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 23:36:41,322 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 23:36:41,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 23:36:41,322 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 23:36:41,322 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 23:36:41,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 23:36:41,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 23:36:41,323 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 23:36:41,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 23:36:41,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 23:36:41,323 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 23:36:41,323 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 23:36:41,324 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 23:36:41,324 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 23:36:41,324 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 23:36:41,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 23:36:41,324 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 23:36:41,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 23:36:41,324 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 23:36:41,324 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 23:36:41,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 23:36:41,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 23:36:41,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 23:36:41,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 23:36:41,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 23:36:41,325 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 23:36:41,325 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 23:36:41,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 23:36:41,326 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2022-12-14 23:36:41,326 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 23:36:41,326 INFO L138 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_ee2eee67-fd4a-430f-ac11-97becac7db91/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2eee67-fd4a-430f-ac11-97becac7db91/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa97ad6141e9aa8818b694f4968e766701fe7261f516cd86f7a15e5cf1a3d14d [2022-12-14 23:36:41,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 23:36:41,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 23:36:41,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 23:36:41,589 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 23:36:41,590 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 23:36:41,591 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2eee67-fd4a-430f-ac11-97becac7db91/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/pthread-ext/26_stack_cas.i [2022-12-14 23:36:44,227 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 23:36:44,445 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 23:36:44,445 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2eee67-fd4a-430f-ac11-97becac7db91/sv-benchmarks/c/pthread-ext/26_stack_cas.i [2022-12-14 23:36:44,456 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2eee67-fd4a-430f-ac11-97becac7db91/bin/ukojak-rkRKPMF4O4/data/fbec0f7e9/7d632deec84642108ebf0d3f445ca481/FLAGd649ad055 [2022-12-14 23:36:44,470 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2eee67-fd4a-430f-ac11-97becac7db91/bin/ukojak-rkRKPMF4O4/data/fbec0f7e9/7d632deec84642108ebf0d3f445ca481 [2022-12-14 23:36:44,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 23:36:44,474 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 23:36:44,475 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 23:36:44,475 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 23:36:44,478 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 23:36:44,479 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:36:44" (1/1) ... [2022-12-14 23:36:44,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21b681fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:44, skipping insertion in model container [2022-12-14 23:36:44,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:36:44" (1/1) ... [2022-12-14 23:36:44,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 23:36:44,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 23:36:44,764 WARN L237 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_ee2eee67-fd4a-430f-ac11-97becac7db91/sv-benchmarks/c/pthread-ext/26_stack_cas.i[31152,31165] [2022-12-14 23:36:44,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 23:36:44,781 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 23:36:44,827 WARN L237 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_ee2eee67-fd4a-430f-ac11-97becac7db91/sv-benchmarks/c/pthread-ext/26_stack_cas.i[31152,31165] [2022-12-14 23:36:44,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 23:36:44,864 INFO L208 MainTranslator]: Completed translation [2022-12-14 23:36:44,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:44 WrapperNode [2022-12-14 23:36:44,865 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 23:36:44,866 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 23:36:44,866 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 23:36:44,866 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 23:36:44,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:44" (1/1) ... [2022-12-14 23:36:44,889 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:44" (1/1) ... [2022-12-14 23:36:44,910 INFO L138 Inliner]: procedures = 181, calls = 47, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 154 [2022-12-14 23:36:44,911 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 23:36:44,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 23:36:44,911 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 23:36:44,911 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 23:36:44,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:44" (1/1) ... [2022-12-14 23:36:44,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:44" (1/1) ... [2022-12-14 23:36:44,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:44" (1/1) ... [2022-12-14 23:36:44,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:44" (1/1) ... [2022-12-14 23:36:44,932 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:44" (1/1) ... [2022-12-14 23:36:44,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:44" (1/1) ... [2022-12-14 23:36:44,938 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:44" (1/1) ... [2022-12-14 23:36:44,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:44" (1/1) ... [2022-12-14 23:36:44,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 23:36:44,944 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 23:36:44,945 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 23:36:44,945 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 23:36:44,946 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:44" (1/1) ... [2022-12-14 23:36:44,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 23:36:44,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2eee67-fd4a-430f-ac11-97becac7db91/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 23:36:44,971 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2eee67-fd4a-430f-ac11-97becac7db91/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 23:36:44,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2eee67-fd4a-430f-ac11-97becac7db91/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 23:36:45,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 23:36:45,006 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-12-14 23:36:45,006 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-12-14 23:36:45,006 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_acquire [2022-12-14 23:36:45,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_acquire [2022-12-14 23:36:45,006 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 23:36:45,007 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 23:36:45,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 23:36:45,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 23:36:45,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 23:36:45,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 23:36:45,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 23:36:45,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-12-14 23:36:45,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_release [2022-12-14 23:36:45,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_release [2022-12-14 23:36:45,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 23:36:45,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 23:36:45,009 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 23:36:45,134 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 23:36:45,136 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 23:36:45,406 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 23:36:45,481 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 23:36:45,481 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-14 23:36:45,482 ERROR L334 CfgBuilder]: Unexpected successor node of atomic block begin: $Ultimate##0 is neither atomic block end nor a sink node. [2022-12-14 23:36:45,483 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) 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) [2022-12-14 23:36:45,487 INFO L158 Benchmark]: Toolchain (without parser) took 1012.06ms. Allocated memory is still 88.1MB. Free memory was 61.8MB in the beginning and 54.2MB in the end (delta: 7.6MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2022-12-14 23:36:45,487 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 54.5MB. Free memory is still 33.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 23:36:45,488 INFO L158 Benchmark]: CACSL2BoogieTranslator took 390.01ms. Allocated memory is still 88.1MB. Free memory was 61.6MB in the beginning and 60.2MB in the end (delta: 1.3MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2022-12-14 23:36:45,488 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.97ms. Allocated memory is still 88.1MB. Free memory was 60.2MB in the beginning and 57.7MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 23:36:45,489 INFO L158 Benchmark]: Boogie Preprocessor took 32.68ms. Allocated memory is still 88.1MB. Free memory was 57.7MB in the beginning and 55.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 23:36:45,489 INFO L158 Benchmark]: RCFGBuilder took 540.66ms. Allocated memory is still 88.1MB. Free memory was 55.3MB in the beginning and 54.2MB in the end (delta: 1.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-14 23:36:45,492 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 54.5MB. Free memory is still 33.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 390.01ms. Allocated memory is still 88.1MB. Free memory was 61.6MB in the beginning and 60.2MB in the end (delta: 1.3MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.97ms. Allocated memory is still 88.1MB. Free memory was 60.2MB in the beginning and 57.7MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.68ms. Allocated memory is still 88.1MB. Free memory was 57.7MB in the beginning and 55.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 540.66ms. Allocated memory is still 88.1MB. Free memory was 55.3MB in the beginning and 54.2MB in the end (delta: 1.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block? de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:303) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-12-14 23:36:45,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2eee67-fd4a-430f-ac11-97becac7db91/bin/ukojak-rkRKPMF4O4/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: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block?