./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/locks/test_locks_15-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14d826a6-5fc7-4cb3-8db9-f9729d4fe715/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14d826a6-5fc7-4cb3-8db9-f9729d4fe715/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14d826a6-5fc7-4cb3-8db9-f9729d4fe715/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14d826a6-5fc7-4cb3-8db9-f9729d4fe715/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/locks/test_locks_15-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14d826a6-5fc7-4cb3-8db9-f9729d4fe715/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14d826a6-5fc7-4cb3-8db9-f9729d4fe715/bin/utaipan-EQgc7hIp5V --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 11a9c91fdf6b42598924d9a4ae5a3db9994a05118a3b564c2bd29b9bad4177b0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:29:24,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:29:24,616 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:29:24,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:29:24,691 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:29:24,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:29:24,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:29:24,704 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:29:24,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:29:24,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:29:24,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:29:24,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:29:24,724 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:29:24,728 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:29:24,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:29:24,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:29:24,739 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:29:24,740 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:29:24,743 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:29:24,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:29:24,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:29:24,759 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:29:24,763 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:29:24,764 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:29:24,776 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:29:24,776 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:29:24,777 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:29:24,779 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:29:24,780 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:29:24,782 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:29:24,783 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:29:24,784 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:29:24,786 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:29:24,788 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:29:24,790 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:29:24,791 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:29:24,792 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:29:24,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:29:24,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:29:24,794 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:29:24,795 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:29:24,796 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14d826a6-5fc7-4cb3-8db9-f9729d4fe715/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 02:29:24,867 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:29:24,867 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:29:24,868 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:29:24,868 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:29:24,877 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:29:24,878 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:29:24,878 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:29:24,878 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:29:24,879 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:29:24,879 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:29:24,880 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:29:24,880 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:29:24,881 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:29:24,881 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:29:24,881 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:29:24,882 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:29:24,882 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:29:24,882 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:29:24,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:29:24,883 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:29:24,884 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:29:24,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:29:24,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:29:24,885 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:29:24,885 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:29:24,885 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:29:24,887 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:29:24,887 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:29:24,888 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:29:24,888 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:29:24,888 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:29:24,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:29:24,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:29:24,889 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:29:24,890 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:29:24,890 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:29:24,890 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:29:24,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:29:24,891 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:29:24,891 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:29:24,891 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:29:24,892 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_14d826a6-5fc7-4cb3-8db9-f9729d4fe715/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14d826a6-5fc7-4cb3-8db9-f9729d4fe715/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11a9c91fdf6b42598924d9a4ae5a3db9994a05118a3b564c2bd29b9bad4177b0 [2021-11-23 02:29:25,202 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:29:25,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:29:25,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:29:25,246 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:29:25,247 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:29:25,249 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14d826a6-5fc7-4cb3-8db9-f9729d4fe715/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/locks/test_locks_15-1.c [2021-11-23 02:29:25,335 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14d826a6-5fc7-4cb3-8db9-f9729d4fe715/bin/utaipan-EQgc7hIp5V/data/e3d5747aa/ec2686e01f4848b0bf2725d0d321d44f/FLAG826948c6e [2021-11-23 02:29:25,982 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:29:25,983 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14d826a6-5fc7-4cb3-8db9-f9729d4fe715/sv-benchmarks/c/locks/test_locks_15-1.c [2021-11-23 02:29:26,000 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14d826a6-5fc7-4cb3-8db9-f9729d4fe715/bin/utaipan-EQgc7hIp5V/data/e3d5747aa/ec2686e01f4848b0bf2725d0d321d44f/FLAG826948c6e [2021-11-23 02:29:26,291 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14d826a6-5fc7-4cb3-8db9-f9729d4fe715/bin/utaipan-EQgc7hIp5V/data/e3d5747aa/ec2686e01f4848b0bf2725d0d321d44f [2021-11-23 02:29:26,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:29:26,298 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:29:26,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:29:26,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:29:26,308 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:29:26,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:29:26" (1/1) ... [2021-11-23 02:29:26,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12961033 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:26, skipping insertion in model container [2021-11-23 02:29:26,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:29:26" (1/1) ... [2021-11-23 02:29:26,322 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:29:26,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:29:26,651 WARN L230 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_14d826a6-5fc7-4cb3-8db9-f9729d4fe715/sv-benchmarks/c/locks/test_locks_15-1.c[5654,5667] [2021-11-23 02:29:26,664 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:29:26,676 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:29:26,742 WARN L230 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_14d826a6-5fc7-4cb3-8db9-f9729d4fe715/sv-benchmarks/c/locks/test_locks_15-1.c[5654,5667] [2021-11-23 02:29:26,743 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:29:26,771 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:29:26,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:26 WrapperNode [2021-11-23 02:29:26,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:29:26,773 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:29:26,773 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:29:26,773 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:29:26,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:26" (1/1) ... [2021-11-23 02:29:26,806 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:26" (1/1) ... [2021-11-23 02:29:26,846 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 195 [2021-11-23 02:29:26,846 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:29:26,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:29:26,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:29:26,847 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:29:26,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:26" (1/1) ... [2021-11-23 02:29:26,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:26" (1/1) ... [2021-11-23 02:29:26,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:26" (1/1) ... [2021-11-23 02:29:26,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:26" (1/1) ... [2021-11-23 02:29:26,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:26" (1/1) ... [2021-11-23 02:29:26,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:26" (1/1) ... [2021-11-23 02:29:26,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:26" (1/1) ... [2021-11-23 02:29:26,894 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:29:26,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:29:26,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:29:26,896 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:29:26,898 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:26" (1/1) ... [2021-11-23 02:29:26,910 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:29:26,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14d826a6-5fc7-4cb3-8db9-f9729d4fe715/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:29:26,936 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14d826a6-5fc7-4cb3-8db9-f9729d4fe715/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:29:26,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14d826a6-5fc7-4cb3-8db9-f9729d4fe715/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:29:26,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:29:26,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:29:26,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:29:26,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:29:27,061 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:29:27,064 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:29:27,531 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:29:27,692 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:29:27,692 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 02:29:27,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:29:27 BoogieIcfgContainer [2021-11-23 02:29:27,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:29:27,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:29:27,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:29:27,703 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:29:27,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:29:26" (1/3) ... [2021-11-23 02:29:27,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1c10aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:29:27, skipping insertion in model container [2021-11-23 02:29:27,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:26" (2/3) ... [2021-11-23 02:29:27,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1c10aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:29:27, skipping insertion in model container [2021-11-23 02:29:27,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:29:27" (3/3) ... [2021-11-23 02:29:27,707 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_15-1.c [2021-11-23 02:29:27,713 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:29:27,714 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:29:27,784 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:29:27,796 INFO L339 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=FINITE_AUTOMATA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:29:27,797 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:29:27,821 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 36 states have (on average 1.9166666666666667) internal successors, (69), 37 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:29:27,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 02:29:27,827 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:29:27,828 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-23 02:29:27,828 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:29:27,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:29:27,835 INFO L85 PathProgramCache]: Analyzing trace with hash 390618466, now seen corresponding path program 1 times [2021-11-23 02:29:27,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:29:27,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550474899] [2021-11-23 02:29:27,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:29:27,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:29:28,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 02:29:28,047 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 02:29:28,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 02:29:28,209 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-23 02:29:28,212 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 02:29:28,213 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 02:29:28,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:29:28,254 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-23 02:29:28,257 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 02:29:28,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:29:28 BoogieIcfgContainer [2021-11-23 02:29:28,331 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 02:29:28,338 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 02:29:28,338 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 02:29:28,338 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 02:29:28,339 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:29:27" (3/4) ... [2021-11-23 02:29:28,341 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 02:29:28,443 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14d826a6-5fc7-4cb3-8db9-f9729d4fe715/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 02:29:28,443 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 02:29:28,445 INFO L158 Benchmark]: Toolchain (without parser) took 2146.23ms. Allocated memory was 94.4MB in the beginning and 130.0MB in the end (delta: 35.7MB). Free memory was 70.9MB in the beginning and 100.1MB in the end (delta: -29.2MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2021-11-23 02:29:28,445 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 94.4MB. Free memory was 66.4MB in the beginning and 66.4MB in the end (delta: 18.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:29:28,446 INFO L158 Benchmark]: CACSL2BoogieTranslator took 468.03ms. Allocated memory is still 94.4MB. Free memory was 70.7MB in the beginning and 67.6MB in the end (delta: 3.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 02:29:28,447 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.57ms. Allocated memory is still 94.4MB. Free memory was 67.6MB in the beginning and 65.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:29:28,447 INFO L158 Benchmark]: Boogie Preprocessor took 47.39ms. Allocated memory is still 94.4MB. Free memory was 65.5MB in the beginning and 64.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:29:28,448 INFO L158 Benchmark]: RCFGBuilder took 799.96ms. Allocated memory is still 94.4MB. Free memory was 64.2MB in the beginning and 42.7MB in the end (delta: 21.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-23 02:29:28,449 INFO L158 Benchmark]: TraceAbstraction took 636.97ms. Allocated memory was 94.4MB in the beginning and 130.0MB in the end (delta: 35.7MB). Free memory was 42.4MB in the beginning and 103.0MB in the end (delta: -60.6MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2021-11-23 02:29:28,450 INFO L158 Benchmark]: Witness Printer took 105.54ms. Allocated memory is still 130.0MB. Free memory was 103.0MB in the beginning and 100.1MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 02:29:28,453 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 94.4MB. Free memory was 66.4MB in the beginning and 66.4MB in the end (delta: 18.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 468.03ms. Allocated memory is still 94.4MB. Free memory was 70.7MB in the beginning and 67.6MB in the end (delta: 3.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.57ms. Allocated memory is still 94.4MB. Free memory was 67.6MB in the beginning and 65.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.39ms. Allocated memory is still 94.4MB. Free memory was 65.5MB in the beginning and 64.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 799.96ms. Allocated memory is still 94.4MB. Free memory was 64.2MB in the beginning and 42.7MB in the end (delta: 21.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 636.97ms. Allocated memory was 94.4MB in the beginning and 130.0MB in the end (delta: 35.7MB). Free memory was 42.4MB in the beginning and 103.0MB in the end (delta: -60.6MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. * Witness Printer took 105.54ms. Allocated memory is still 130.0MB. Free memory was 103.0MB in the beginning and 100.1MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 233]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L41] int p12 = __VERIFIER_nondet_int(); [L42] int lk12; [L44] int p13 = __VERIFIER_nondet_int(); [L45] int lk13; [L47] int p14 = __VERIFIER_nondet_int(); [L48] int lk14; [L50] int p15 = __VERIFIER_nondet_int(); [L51] int lk15; [L54] int cond; VAL [p1=0, p10=1, p11=0, p12=1, p13=0, p14=1, p15=0, p2=0, p3=1, p4=1, p5=1, p6=0, p7=0, p8=1, p9=1] [L56] COND TRUE 1 [L57] cond = __VERIFIER_nondet_int() [L58] COND FALSE !(cond == 0) [L61] lk1 = 0 [L63] lk2 = 0 [L65] lk3 = 0 [L67] lk4 = 0 [L69] lk5 = 0 [L71] lk6 = 0 [L73] lk7 = 0 [L75] lk8 = 0 [L77] lk9 = 0 [L79] lk10 = 0 [L81] lk11 = 0 [L83] lk12 = 0 [L85] lk13 = 0 [L87] lk14 = 0 [L89] lk15 = 0 [L93] COND FALSE !(p1 != 0) [L97] COND FALSE !(p2 != 0) [L101] COND TRUE p3 != 0 [L102] lk3 = 1 [L105] COND TRUE p4 != 0 [L106] lk4 = 1 [L109] COND TRUE p5 != 0 [L110] lk5 = 1 [L113] COND FALSE !(p6 != 0) [L117] COND FALSE !(p7 != 0) [L121] COND TRUE p8 != 0 [L122] lk8 = 1 [L125] COND TRUE p9 != 0 [L126] lk9 = 1 [L129] COND TRUE p10 != 0 [L130] lk10 = 1 [L133] COND FALSE !(p11 != 0) [L137] COND TRUE p12 != 0 [L138] lk12 = 1 [L141] COND FALSE !(p13 != 0) [L145] COND TRUE p14 != 0 [L146] lk14 = 1 [L149] COND FALSE !(p15 != 0) VAL [cond=1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=0, lk14=1, lk15=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=0, lk7=0, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=0, p14=1, p15=0, p2=0, p3=1, p4=1, p5=1, p6=0, p7=0, p8=1, p9=1] [L155] COND FALSE !(p1 != 0) VAL [cond=1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=0, lk14=1, lk15=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=0, lk7=0, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=0, p14=1, p15=0, p2=0, p3=1, p4=1, p5=1, p6=0, p7=0, p8=1, p9=1] [L160] COND FALSE !(p2 != 0) VAL [cond=1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=0, lk14=1, lk15=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=0, lk7=0, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=0, p14=1, p15=0, p2=0, p3=1, p4=1, p5=1, p6=0, p7=0, p8=1, p9=1] [L233] reach_error() VAL [cond=1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=0, lk14=1, lk15=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=0, lk7=0, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=0, p14=1, p15=0, p2=0, p3=1, p4=1, p5=1, p6=0, p7=0, p8=1, p9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-23 02:29:28,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14d826a6-5fc7-4cb3-8db9-f9729d4fe715/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE