./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-pthread/cs_queue-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4b1ab5-7fd4-4bfc-95df-b68d88896013/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4b1ab5-7fd4-4bfc-95df-b68d88896013/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4b1ab5-7fd4-4bfc-95df-b68d88896013/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4b1ab5-7fd4-4bfc-95df-b68d88896013/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_queue-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4b1ab5-7fd4-4bfc-95df-b68d88896013/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4b1ab5-7fd4-4bfc-95df-b68d88896013/bin/uautomizer-tPACEb0tL8 --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 38d92478d67c3996e3815aaa6d0075347cfc456da7f20d1b1bb733d11593b6cf --- 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-e04fb08 [2022-11-16 12:44:52,743 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:44:52,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:44:52,766 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:44:52,767 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:44:52,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:44:52,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:44:52,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:44:52,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:44:52,784 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:44:52,786 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:44:52,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:44:52,793 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:44:52,796 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:44:52,800 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:44:52,802 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:44:52,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:44:52,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:44:52,812 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:44:52,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:44:52,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:44:52,822 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:44:52,823 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:44:52,824 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:44:52,828 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:44:52,828 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:44:52,828 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:44:52,829 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:44:52,830 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:44:52,831 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:44:52,831 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:44:52,832 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:44:52,841 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:44:52,843 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:44:52,844 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:44:52,844 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:44:52,845 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:44:52,845 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:44:52,845 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:44:52,846 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:44:52,847 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:44:52,848 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4b1ab5-7fd4-4bfc-95df-b68d88896013/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 12:44:52,896 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:44:52,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:44:52,897 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:44:52,897 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:44:52,898 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:44:52,898 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:44:52,899 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:44:52,899 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:44:52,899 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:44:52,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:44:52,901 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:44:52,901 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:44:52,901 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:44:52,901 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:44:52,902 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:44:52,902 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:44:52,902 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:44:52,902 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:44:52,902 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:44:52,903 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:44:52,903 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:44:52,903 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:44:52,903 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:44:52,903 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:44:52,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:44:52,904 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:44:52,904 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:44:52,904 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:44:52,905 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:44:52,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:44:52,905 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:44:52,905 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:44:52,906 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:44:52,906 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_9d4b1ab5-7fd4-4bfc-95df-b68d88896013/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4b1ab5-7fd4-4bfc-95df-b68d88896013/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38d92478d67c3996e3815aaa6d0075347cfc456da7f20d1b1bb733d11593b6cf [2022-11-16 12:44:53,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:44:53,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:44:53,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:44:53,288 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:44:53,289 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:44:53,291 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4b1ab5-7fd4-4bfc-95df-b68d88896013/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/seq-pthread/cs_queue-1.i [2022-11-16 12:44:53,380 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4b1ab5-7fd4-4bfc-95df-b68d88896013/bin/uautomizer-tPACEb0tL8/data/746692e22/5a6cbb2c09a74366a1be1225e6971811/FLAG489e2310e [2022-11-16 12:44:54,171 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:44:54,172 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4b1ab5-7fd4-4bfc-95df-b68d88896013/sv-benchmarks/c/seq-pthread/cs_queue-1.i [2022-11-16 12:44:54,199 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4b1ab5-7fd4-4bfc-95df-b68d88896013/bin/uautomizer-tPACEb0tL8/data/746692e22/5a6cbb2c09a74366a1be1225e6971811/FLAG489e2310e [2022-11-16 12:44:54,333 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4b1ab5-7fd4-4bfc-95df-b68d88896013/bin/uautomizer-tPACEb0tL8/data/746692e22/5a6cbb2c09a74366a1be1225e6971811 [2022-11-16 12:44:54,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:44:54,344 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:44:54,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:44:54,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:44:54,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:44:54,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:44:54" (1/1) ... [2022-11-16 12:44:54,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@355fbd0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:54, skipping insertion in model container [2022-11-16 12:44:54,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:44:54" (1/1) ... [2022-11-16 12:44:54,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:44:54,443 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:44:55,075 WARN L229 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_9d4b1ab5-7fd4-4bfc-95df-b68d88896013/sv-benchmarks/c/seq-pthread/cs_queue-1.i[34744,34757] [2022-11-16 12:44:55,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:44:55,261 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:44:55,297 WARN L229 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_9d4b1ab5-7fd4-4bfc-95df-b68d88896013/sv-benchmarks/c/seq-pthread/cs_queue-1.i[34744,34757] [2022-11-16 12:44:55,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:44:55,483 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:44:55,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:55 WrapperNode [2022-11-16 12:44:55,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:44:55,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:44:55,486 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:44:55,486 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:44:55,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:55" (1/1) ... [2022-11-16 12:44:55,533 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:55" (1/1) ... [2022-11-16 12:44:55,613 INFO L138 Inliner]: procedures = 251, calls = 536, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 1156 [2022-11-16 12:44:55,614 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:44:55,615 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:44:55,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:44:55,615 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:44:55,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:55" (1/1) ... [2022-11-16 12:44:55,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:55" (1/1) ... [2022-11-16 12:44:55,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:55" (1/1) ... [2022-11-16 12:44:55,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:55" (1/1) ... [2022-11-16 12:44:55,712 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:55" (1/1) ... [2022-11-16 12:44:55,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:55" (1/1) ... [2022-11-16 12:44:55,745 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:55" (1/1) ... [2022-11-16 12:44:55,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:55" (1/1) ... [2022-11-16 12:44:55,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:44:55,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:44:55,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:44:55,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:44:55,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:55" (1/1) ... [2022-11-16 12:44:55,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:44:55,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4b1ab5-7fd4-4bfc-95df-b68d88896013/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:44:55,823 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4b1ab5-7fd4-4bfc-95df-b68d88896013/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:44:55,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4b1ab5-7fd4-4bfc-95df-b68d88896013/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:44:55,888 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 12:44:55,888 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 12:44:55,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:44:55,889 INFO L130 BoogieDeclarations]: Found specification of procedure empty [2022-11-16 12:44:55,889 INFO L138 BoogieDeclarations]: Found implementation of procedure empty [2022-11-16 12:44:55,889 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2022-11-16 12:44:55,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2022-11-16 12:44:55,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 12:44:55,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:44:55,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 12:44:55,893 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2022-11-16 12:44:55,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2022-11-16 12:44:55,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:44:55,893 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-16 12:44:55,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-16 12:44:55,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:44:55,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:44:55,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:44:55,894 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2022-11-16 12:44:55,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2022-11-16 12:44:55,894 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2022-11-16 12:44:55,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2022-11-16 12:44:55,895 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-11-16 12:44:55,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-11-16 12:44:55,895 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2022-11-16 12:44:55,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2022-11-16 12:44:55,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:44:55,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:44:55,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:44:56,260 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:44:56,264 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:44:56,386 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !(0 != ~__CS_ret~0 % 256); [2022-11-16 12:44:56,386 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !(0 != ~__CS_ret~0 % 256); [2022-11-16 12:44:56,387 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume 0 != ~__CS_ret~0 % 256;#res := 0; [2022-11-16 12:44:56,387 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume 0 != ~__CS_ret~0 % 256;#res := 0; [2022-11-16 12:44:57,075 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L1093: SUMMARY for call __CS_cs(); srcloc: null [2022-11-16 12:44:57,075 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L1093-1: assume 0 != ~__CS_ret~0 % 256;t2_#res#1.base, t2_#res#1.offset := 0, 0; [2022-11-16 12:44:57,075 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L1093-1: assume !(0 != ~__CS_ret~0 % 256); [2022-11-16 12:44:57,075 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L1129: SUMMARY for call __CS_cs(); srcloc: null [2022-11-16 12:44:57,076 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L1129-1: 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; [2022-11-16 12:44:57,076 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L1129-1: assume !(0 != ~__CS_ret~0 % 256); [2022-11-16 12:44:57,076 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume 0 != ~__CS_ret~0 % 256;t2_#res#1.base, t2_#res#1.offset := 0, 0; [2022-11-16 12:44:57,076 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !(0 != ~__CS_ret~0 % 256); [2022-11-16 12:44:57,076 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##83: assume !(0 != ~__CS_ret~0 % 256); [2022-11-16 12:44:57,076 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##82: assume 0 != ~__CS_ret~0 % 256;dequeue_#res#1 := 0; [2022-11-16 12:44:57,077 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##89: assume !(0 != ~__CS_ret~0 % 256); [2022-11-16 12:44:57,077 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume 0 != ~__CS_ret~0 % 256;t2_#res#1.base, t2_#res#1.offset := 0, 0; [2022-11-16 12:44:57,077 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !(0 != ~__CS_ret~0 % 256); [2022-11-16 12:44:57,077 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; [2022-11-16 12:44:57,077 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !(0 != ~__CS_ret~0 % 256); [2022-11-16 12:44:57,077 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; [2022-11-16 12:44:57,078 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##149: assume 0 != ~__CS_ret~0 % 256;enqueue_#res#1 := 0; [2022-11-16 12:44:57,078 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##150: assume !(0 != ~__CS_ret~0 % 256); [2022-11-16 12:44:57,078 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; [2022-11-16 12:44:57,078 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##167: assume !(0 != ~__CS_ret~0 % 256); [2022-11-16 12:44:57,078 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##109: assume 0 != ~__CS_ret~0 % 256;t2_#res#1.base, t2_#res#1.offset := 0, 0; [2022-11-16 12:44:57,078 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##110: assume !(0 != ~__CS_ret~0 % 256); [2022-11-16 12:45:02,338 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:45:02,350 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:45:02,351 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-16 12:45:02,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:45:02 BoogieIcfgContainer [2022-11-16 12:45:02,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:45:02,357 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:45:02,357 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:45:02,361 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:45:02,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:44:54" (1/3) ... [2022-11-16 12:45:02,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79b42df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:45:02, skipping insertion in model container [2022-11-16 12:45:02,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:55" (2/3) ... [2022-11-16 12:45:02,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79b42df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:45:02, skipping insertion in model container [2022-11-16 12:45:02,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:45:02" (3/3) ... [2022-11-16 12:45:02,365 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_queue-1.i [2022-11-16 12:45:02,387 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:45:02,388 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:45:02,458 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:45:02,466 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;@425f67d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:45:02,466 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:45:02,473 INFO L276 IsEmpty]: Start isEmpty. Operand has 346 states, 203 states have (on average 1.4729064039408868) internal successors, (299), 205 states have internal predecessors, (299), 132 states have call successors, (132), 9 states have call predecessors, (132), 9 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) [2022-11-16 12:45:02,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-11-16 12:45:02,517 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:45:02,517 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, 1, 1, 1, 1] [2022-11-16 12:45:02,518 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:45:02,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:45:02,524 INFO L85 PathProgramCache]: Analyzing trace with hash 494140458, now seen corresponding path program 1 times [2022-11-16 12:45:02,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:45:02,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468757717] [2022-11-16 12:45:02,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:45:02,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms