./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-pthread/cs_queue-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_9512dcca-69fe-4fc1-9fd3-68195b64e5a4/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512dcca-69fe-4fc1-9fd3-68195b64e5a4/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512dcca-69fe-4fc1-9fd3-68195b64e5a4/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512dcca-69fe-4fc1-9fd3-68195b64e5a4/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_queue-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512dcca-69fe-4fc1-9fd3-68195b64e5a4/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512dcca-69fe-4fc1-9fd3-68195b64e5a4/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8159433f4ea1208e9ded3d30d98c55f64500f74c12655a237b65d69e94898ea5 --- 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-38b53e6 [2022-11-25 15:47:51,986 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:47:51,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:47:52,027 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:47:52,027 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:47:52,031 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:47:52,034 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:47:52,037 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:47:52,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:47:52,045 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:47:52,046 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:47:52,049 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:47:52,049 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:47:52,052 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:47:52,054 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:47:52,055 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:47:52,057 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:47:52,058 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:47:52,060 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:47:52,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:47:52,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:47:52,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:47:52,071 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:47:52,072 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:47:52,082 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:47:52,082 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:47:52,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:47:52,086 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:47:52,087 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:47:52,088 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:47:52,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:47:52,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:47:52,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:47:52,092 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:47:52,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:47:52,094 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:47:52,094 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:47:52,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:47:52,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:47:52,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:47:52,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:47:52,098 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512dcca-69fe-4fc1-9fd3-68195b64e5a4/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 15:47:52,135 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:47:52,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:47:52,137 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:47:52,137 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:47:52,138 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:47:52,138 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:47:52,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:47:52,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:47:52,139 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:47:52,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:47:52,141 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 15:47:52,141 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:47:52,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 15:47:52,142 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:47:52,142 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:47:52,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:47:52,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:47:52,143 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 15:47:52,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:47:52,143 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:47:52,144 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:47:52,144 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:47:52,144 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:47:52,144 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:47:52,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:47:52,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:47:52,145 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:47:52,146 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:47:52,146 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:47:52,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:47:52,147 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:47:52,147 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:47:52,148 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:47:52,148 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:47:52,148 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_9512dcca-69fe-4fc1-9fd3-68195b64e5a4/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512dcca-69fe-4fc1-9fd3-68195b64e5a4/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8159433f4ea1208e9ded3d30d98c55f64500f74c12655a237b65d69e94898ea5 [2022-11-25 15:47:52,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:47:52,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:47:52,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:47:52,435 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:47:52,436 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:47:52,437 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512dcca-69fe-4fc1-9fd3-68195b64e5a4/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/seq-pthread/cs_queue-2.i [2022-11-25 15:47:55,364 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:47:55,787 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:47:55,788 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512dcca-69fe-4fc1-9fd3-68195b64e5a4/sv-benchmarks/c/seq-pthread/cs_queue-2.i [2022-11-25 15:47:55,810 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512dcca-69fe-4fc1-9fd3-68195b64e5a4/bin/uautomizer-ZsLfNo2U6R/data/82ee03528/eef9cc4e8c134b28941da68d4a67321e/FLAGcbf8dec24 [2022-11-25 15:47:55,828 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512dcca-69fe-4fc1-9fd3-68195b64e5a4/bin/uautomizer-ZsLfNo2U6R/data/82ee03528/eef9cc4e8c134b28941da68d4a67321e [2022-11-25 15:47:55,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:47:55,833 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:47:55,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:47:55,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:47:55,839 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:47:55,840 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:47:55" (1/1) ... [2022-11-25 15:47:55,841 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d696a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:55, skipping insertion in model container [2022-11-25 15:47:55,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:47:55" (1/1) ... [2022-11-25 15:47:55,849 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:47:55,926 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:47:56,514 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_9512dcca-69fe-4fc1-9fd3-68195b64e5a4/sv-benchmarks/c/seq-pthread/cs_queue-2.i[34556,34569] [2022-11-25 15:47:56,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:47:56,718 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:47:56,767 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_9512dcca-69fe-4fc1-9fd3-68195b64e5a4/sv-benchmarks/c/seq-pthread/cs_queue-2.i[34556,34569] [2022-11-25 15:47:56,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:47:56,924 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:47:56,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:56 WrapperNode [2022-11-25 15:47:56,925 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:47:56,926 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:47:56,926 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:47:56,926 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:47:56,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:56" (1/1) ... [2022-11-25 15:47:56,965 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:56" (1/1) ... [2022-11-25 15:47:57,023 INFO L138 Inliner]: procedures = 249, calls = 531, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 1087 [2022-11-25 15:47:57,024 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:47:57,024 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:47:57,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:47:57,025 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:47:57,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:56" (1/1) ... [2022-11-25 15:47:57,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:56" (1/1) ... [2022-11-25 15:47:57,045 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:56" (1/1) ... [2022-11-25 15:47:57,045 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:56" (1/1) ... [2022-11-25 15:47:57,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:56" (1/1) ... [2022-11-25 15:47:57,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:56" (1/1) ... [2022-11-25 15:47:57,138 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:56" (1/1) ... [2022-11-25 15:47:57,142 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:56" (1/1) ... [2022-11-25 15:47:57,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:47:57,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:47:57,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:47:57,168 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:47:57,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:56" (1/1) ... [2022-11-25 15:47:57,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:47:57,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512dcca-69fe-4fc1-9fd3-68195b64e5a4/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:47:57,224 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512dcca-69fe-4fc1-9fd3-68195b64e5a4/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:47:57,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512dcca-69fe-4fc1-9fd3-68195b64e5a4/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:47:57,269 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 15:47:57,270 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 15:47:57,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 15:47:57,270 INFO L130 BoogieDeclarations]: Found specification of procedure empty [2022-11-25 15:47:57,270 INFO L138 BoogieDeclarations]: Found implementation of procedure empty [2022-11-25 15:47:57,271 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2022-11-25 15:47:57,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2022-11-25 15:47:57,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 15:47:57,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 15:47:57,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 15:47:57,273 INFO L130 BoogieDeclarations]: Found specification of procedure enqueue [2022-11-25 15:47:57,273 INFO L138 BoogieDeclarations]: Found implementation of procedure enqueue [2022-11-25 15:47:57,274 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2022-11-25 15:47:57,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2022-11-25 15:47:57,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 15:47:57,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 15:47:57,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:47:57,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 15:47:57,275 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2022-11-25 15:47:57,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2022-11-25 15:47:57,275 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2022-11-25 15:47:57,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2022-11-25 15:47:57,275 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-11-25 15:47:57,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-11-25 15:47:57,276 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2022-11-25 15:47:57,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2022-11-25 15:47:57,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:47:57,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:47:57,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:47:57,634 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:47:57,637 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:47:57,776 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !(0 != ~__CS_ret~0 % 256); [2022-11-25 15:47:57,776 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !(0 != ~__CS_ret~0 % 256); [2022-11-25 15:47:57,777 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume 0 != ~__CS_ret~0 % 256;#res := 0; [2022-11-25 15:47:57,777 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume 0 != ~__CS_ret~0 % 256;#res := 0; [2022-11-25 15:47:57,857 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !(0 != ~__CS_ret~0 % 256); [2022-11-25 15:47:57,857 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume 0 != ~__CS_ret~0 % 256;#res := 0; [2022-11-25 15:47:58,382 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L1097: SUMMARY for call __CS_cs(); srcloc: null [2022-11-25 15:47:58,382 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L1097-1: assume 0 != ~__CS_ret~0 % 256;t2_#res#1.base, t2_#res#1.offset := 0, 0; [2022-11-25 15:47:58,383 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L1097-1: assume !(0 != ~__CS_ret~0 % 256); [2022-11-25 15:47:58,383 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L1132: SUMMARY for call __CS_cs(); srcloc: null [2022-11-25 15:47:58,383 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L1132-1: assume 0 != ~__CS_ret~0 % 256;main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2022-11-25 15:47:58,383 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L1132-1: assume !(0 != ~__CS_ret~0 % 256); [2022-11-25 15:47:58,383 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L1075: SUMMARY for call __CS_cs(); srcloc: null [2022-11-25 15:47:58,384 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L1075-1: assume 0 != ~__CS_ret~0 % 256;t1_#res#1.base, t1_#res#1.offset := 0, 0; [2022-11-25 15:47:58,384 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L1075-1: assume !(0 != ~__CS_ret~0 % 256); [2022-11-25 15:47:58,384 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume !(0 != ~__CS_ret~0 % 256); [2022-11-25 15:47:58,384 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##86: assume 0 != ~__CS_ret~0 % 256;t2_#res#1.base, t2_#res#1.offset := 0, 0; [2022-11-25 15:47:58,384 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !(0 != ~__CS_ret~0 % 256); [2022-11-25 15:47:58,385 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume 0 != ~__CS_ret~0 % 256;t2_#res#1.base, t2_#res#1.offset := 0, 0; [2022-11-25 15:47:58,385 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##79: assume !(0 != ~__CS_ret~0 % 256); [2022-11-25 15:47:58,386 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##78: assume 0 != ~__CS_ret~0 % 256;dequeue_#res#1 := 0; [2022-11-25 15:47:58,386 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##129: assume !(0 != ~__CS_ret~0 % 256); [2022-11-25 15:47:58,387 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##128: assume 0 != ~__CS_ret~0 % 256;t1_#res#1.base, t1_#res#1.offset := 0, 0; [2022-11-25 15:47:58,387 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !(0 != ~__CS_ret~0 % 256); [2022-11-25 15:47:58,387 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume 0 != ~__CS_ret~0 % 256;main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2022-11-25 15:47:58,388 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !(0 != ~__CS_ret~0 % 256); [2022-11-25 15:47:58,388 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume 0 != ~__CS_ret~0 % 256;main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2022-11-25 15:47:58,388 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##166: assume 0 != ~__CS_ret~0 % 256;t1_#res#1.base, t1_#res#1.offset := 0, 0; [2022-11-25 15:47:58,389 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##169: assume !(0 != ~__CS_ret~0 % 256); [2022-11-25 15:47:58,389 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##168: assume 0 != ~__CS_ret~0 % 256;t1_#res#1.base, t1_#res#1.offset := 0, 0; [2022-11-25 15:47:58,389 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##167: assume !(0 != ~__CS_ret~0 % 256); [2022-11-25 15:47:58,390 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##104: assume 0 != ~__CS_ret~0 % 256;t2_#res#1.base, t2_#res#1.offset := 0, 0; [2022-11-25 15:47:58,390 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##105: assume !(0 != ~__CS_ret~0 % 256); [2022-11-25 15:47:58,390 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##118: assume !(0 != ~__CS_ret~0 % 256); [2022-11-25 15:47:58,390 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##117: assume 0 != ~__CS_ret~0 % 256;t1_#res#1.base, t1_#res#1.offset := 0, 0; [2022-11-25 15:48:03,148 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:48:03,158 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:48:03,158 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 15:48:03,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:48:03 BoogieIcfgContainer [2022-11-25 15:48:03,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:48:03,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:48:03,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:48:03,166 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:48:03,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:47:55" (1/3) ... [2022-11-25 15:48:03,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ec6d23f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:48:03, skipping insertion in model container [2022-11-25 15:48:03,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:56" (2/3) ... [2022-11-25 15:48:03,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ec6d23f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:48:03, skipping insertion in model container [2022-11-25 15:48:03,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:48:03" (3/3) ... [2022-11-25 15:48:03,169 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_queue-2.i [2022-11-25 15:48:03,188 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:48:03,188 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 15:48:03,246 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:48:03,252 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@25502898, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:48:03,253 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 15:48:03,258 INFO L276 IsEmpty]: Start isEmpty. Operand has 351 states, 204 states have (on average 1.4705882352941178) internal successors, (300), 206 states have internal predecessors, (300), 136 states have call successors, (136), 9 states have call predecessors, (136), 9 states have return successors, (136), 136 states have call predecessors, (136), 136 states have call successors, (136) [2022-11-25 15:48:03,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2022-11-25 15:48:03,300 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:48:03,301 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:48:03,302 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:48:03,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:48:03,307 INFO L85 PathProgramCache]: Analyzing trace with hash 835834191, now seen corresponding path program 1 times [2022-11-25 15:48:03,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:48:03,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237449521] [2022-11-25 15:48:03,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:48:03,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms