./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 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42b254b2-0fdf-4341-b1ff-87b6434ed6a4/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42b254b2-0fdf-4341-b1ff-87b6434ed6a4/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42b254b2-0fdf-4341-b1ff-87b6434ed6a4/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42b254b2-0fdf-4341-b1ff-87b6434ed6a4/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/locks/test_locks_15-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42b254b2-0fdf-4341-b1ff-87b6434ed6a4/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42b254b2-0fdf-4341-b1ff-87b6434ed6a4/bin/utaipan-WLngWcDbfI --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 04dfa849b43716e8587b0fc4953cadbe3968c4e3 .................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:26:33,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:26:33,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:26:33,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:26:33,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:26:33,739 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:26:33,742 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:26:33,747 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:26:33,750 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:26:33,758 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:26:33,760 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:26:33,761 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:26:33,762 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:26:33,765 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:26:33,767 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:26:33,769 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:26:33,771 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:26:33,776 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:26:33,778 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:26:33,788 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:26:33,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:26:33,796 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:26:33,800 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:26:33,802 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:26:33,806 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:26:33,806 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:26:33,807 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:26:33,809 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:26:33,810 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:26:33,811 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:26:33,812 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:26:33,813 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:26:33,815 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:26:33,816 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:26:33,817 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:26:33,818 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:26:33,819 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:26:33,819 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:26:33,819 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:26:33,820 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:26:33,821 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:26:33,824 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42b254b2-0fdf-4341-b1ff-87b6434ed6a4/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:26:33,866 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:26:33,866 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:26:33,869 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:26:33,869 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:26:33,869 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:26:33,869 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:26:33,870 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:26:33,870 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:26:33,876 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:26:33,876 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:26:33,878 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:26:33,878 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:26:33,878 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:26:33,878 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:26:33,879 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:26:33,879 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:26:33,880 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:26:33,880 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:26:33,880 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:26:33,880 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:26:33,880 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:26:33,881 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:26:33,881 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:26:33,881 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:26:33,881 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:26:33,881 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:26:33,881 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:26:33,882 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:26:33,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:26:33,883 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:26:33,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:26:33,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:26:33,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:26:33,885 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:26:33,885 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:26:33,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:26:33,885 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:26:33,886 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:26:33,886 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:26:33,886 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_42b254b2-0fdf-4341-b1ff-87b6434ed6a4/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42b254b2-0fdf-4341-b1ff-87b6434ed6a4/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04dfa849b43716e8587b0fc4953cadbe3968c4e3 [2021-10-11 02:26:34,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:26:34,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:26:34,276 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:26:34,277 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:26:34,278 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:26:34,279 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42b254b2-0fdf-4341-b1ff-87b6434ed6a4/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/locks/test_locks_15-1.c [2021-10-11 02:26:34,357 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42b254b2-0fdf-4341-b1ff-87b6434ed6a4/bin/utaipan-WLngWcDbfI/data/f2b5ae14b/8616045080df475d9097d209cd15099c/FLAGbc1987f16 [2021-10-11 02:26:34,815 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:26:34,816 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42b254b2-0fdf-4341-b1ff-87b6434ed6a4/sv-benchmarks/c/locks/test_locks_15-1.c [2021-10-11 02:26:34,825 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42b254b2-0fdf-4341-b1ff-87b6434ed6a4/bin/utaipan-WLngWcDbfI/data/f2b5ae14b/8616045080df475d9097d209cd15099c/FLAGbc1987f16 [2021-10-11 02:26:35,220 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42b254b2-0fdf-4341-b1ff-87b6434ed6a4/bin/utaipan-WLngWcDbfI/data/f2b5ae14b/8616045080df475d9097d209cd15099c [2021-10-11 02:26:35,222 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:26:35,224 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:26:35,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:35,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:26:35,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:26:35,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:35" (1/1) ... [2021-10-11 02:26:35,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f8dd09c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:35, skipping insertion in model container [2021-10-11 02:26:35,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:35" (1/1) ... [2021-10-11 02:26:35,242 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:26:35,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:26:35,452 WARN L226 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_42b254b2-0fdf-4341-b1ff-87b6434ed6a4/sv-benchmarks/c/locks/test_locks_15-1.c[5654,5667] [2021-10-11 02:26:35,456 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:35,465 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:26:35,502 WARN L226 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_42b254b2-0fdf-4341-b1ff-87b6434ed6a4/sv-benchmarks/c/locks/test_locks_15-1.c[5654,5667] [2021-10-11 02:26:35,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:35,518 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:26:35,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:35 WrapperNode [2021-10-11 02:26:35,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:35,520 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:26:35,520 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:26:35,520 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:26:35,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:35" (1/1) ... [2021-10-11 02:26:35,534 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:35" (1/1) ... [2021-10-11 02:26:35,558 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:26:35,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:26:35,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:26:35,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:26:35,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:35" (1/1) ... [2021-10-11 02:26:35,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:35" (1/1) ... [2021-10-11 02:26:35,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:35" (1/1) ... [2021-10-11 02:26:35,571 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:35" (1/1) ... [2021-10-11 02:26:35,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:35" (1/1) ... [2021-10-11 02:26:35,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:35" (1/1) ... [2021-10-11 02:26:35,587 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:35" (1/1) ... [2021-10-11 02:26:35,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:26:35,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:26:35,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:26:35,591 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:26:35,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:35" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42b254b2-0fdf-4341-b1ff-87b6434ed6a4/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:26:35,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:26:35,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:26:35,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:26:35,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:26:36,439 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:26:36,439 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-11 02:26:36,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:36 BoogieIcfgContainer [2021-10-11 02:26:36,444 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:26:36,446 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:26:36,446 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:26:36,449 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:26:36,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:26:35" (1/3) ... [2021-10-11 02:26:36,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27c709a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:26:36, skipping insertion in model container [2021-10-11 02:26:36,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:35" (2/3) ... [2021-10-11 02:26:36,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27c709a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:26:36, skipping insertion in model container [2021-10-11 02:26:36,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:36" (3/3) ... [2021-10-11 02:26:36,454 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_15-1.c [2021-10-11 02:26:36,468 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:26:36,472 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:26:36,483 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:26:36,520 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:26:36,520 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:26:36,520 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:26:36,520 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:26:36,520 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:26:36,521 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:26:36,521 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:26:36,521 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:26:36,536 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2021-10-11 02:26:36,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:26:36,543 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:36,544 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 02:26:36,544 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:36,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:36,551 INFO L82 PathProgramCache]: Analyzing trace with hash 390618466, now seen corresponding path program 1 times [2021-10-11 02:26:36,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:36,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583880283] [2021-10-11 02:26:36,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:36,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:26:36,714 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:26:36,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:26:36,773 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:26:36,811 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:26:36,811 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:26:36,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:26:36,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:26:36 BoogieIcfgContainer [2021-10-11 02:26:36,840 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:26:36,840 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:26:36,841 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:26:36,841 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:26:36,841 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:36" (3/4) ... [2021-10-11 02:26:36,843 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:26:36,911 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42b254b2-0fdf-4341-b1ff-87b6434ed6a4/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:26:36,911 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:26:36,913 INFO L168 Benchmark]: Toolchain (without parser) took 1688.32 ms. Allocated memory is still 104.9 MB. Free memory was 71.4 MB in the beginning and 75.0 MB in the end (delta: -3.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:26:36,913 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 81.8 MB. Free memory was 61.7 MB in the beginning and 61.7 MB in the end (delta: 20.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:26:36,914 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.57 ms. Allocated memory is still 104.9 MB. Free memory was 71.4 MB in the beginning and 79.8 MB in the end (delta: -8.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:36,914 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.61 ms. Allocated memory is still 104.9 MB. Free memory was 79.8 MB in the beginning and 78.1 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:26:36,915 INFO L168 Benchmark]: Boogie Preprocessor took 31.46 ms. Allocated memory is still 104.9 MB. Free memory was 78.1 MB in the beginning and 76.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:36,916 INFO L168 Benchmark]: RCFGBuilder took 852.66 ms. Allocated memory is still 104.9 MB. Free memory was 76.8 MB in the beginning and 57.2 MB in the end (delta: 19.6 MB). Peak memory consumption was 36.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:36,916 INFO L168 Benchmark]: TraceAbstraction took 394.27 ms. Allocated memory is still 104.9 MB. Free memory was 56.8 MB in the beginning and 77.8 MB in the end (delta: -20.9 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:36,917 INFO L168 Benchmark]: Witness Printer took 70.62 ms. Allocated memory is still 104.9 MB. Free memory was 77.8 MB in the beginning and 75.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:36,920 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 81.8 MB. Free memory was 61.7 MB in the beginning and 61.7 MB in the end (delta: 20.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 289.57 ms. Allocated memory is still 104.9 MB. Free memory was 71.4 MB in the beginning and 79.8 MB in the end (delta: -8.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.61 ms. Allocated memory is still 104.9 MB. Free memory was 79.8 MB in the beginning and 78.1 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.46 ms. Allocated memory is still 104.9 MB. Free memory was 78.1 MB in the beginning and 76.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 852.66 ms. Allocated memory is still 104.9 MB. Free memory was 76.8 MB in the beginning and 57.2 MB in the end (delta: 19.6 MB). Peak memory consumption was 36.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 394.27 ms. Allocated memory is still 104.9 MB. Free memory was 56.8 MB in the beginning and 77.8 MB in the end (delta: -20.9 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. * Witness Printer took 70.62 ms. Allocated memory is still 104.9 MB. Free memory was 77.8 MB in the beginning and 75.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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; [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 FALSE !(p3 != 0) [L105] COND FALSE !(p4 != 0) [L109] COND FALSE !(p5 != 0) [L113] COND FALSE !(p6 != 0) [L117] COND TRUE p7 != 0 [L118] lk7 = 1 [L121] COND TRUE p8 != 0 [L122] lk8 = 1 [L125] COND FALSE !(p9 != 0) [L129] COND TRUE p10 != 0 [L130] lk10 = 1 [L133] COND TRUE p11 != 0 [L134] lk11 = 1 [L137] COND TRUE p12 != 0 [L138] lk12 = 1 [L141] COND TRUE p13 != 0 [L142] lk13 = 1 [L145] COND TRUE p14 != 0 [L146] lk14 = 1 [L149] COND FALSE !(p15 != 0) [L155] COND FALSE !(p1 != 0) [L160] COND FALSE !(p2 != 0) [L233] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=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, 0.0s 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! Received shutdown request...