./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/locks/test_locks_14-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233643a-a781-406a-b0d4-298ed9087b5e/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233643a-a781-406a-b0d4-298ed9087b5e/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233643a-a781-406a-b0d4-298ed9087b5e/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233643a-a781-406a-b0d4-298ed9087b5e/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/locks/test_locks_14-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233643a-a781-406a-b0d4-298ed9087b5e/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233643a-a781-406a-b0d4-298ed9087b5e/bin/utaipan-9zjyvhn0QE --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 75f53c568c86c59ddc62d2fd150ff0a5ed9b51ea17cada3ff1a95dec57d9167c .......................................................................................................................................................................................................................................................................................................................................................... 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 0.2.1-dev-e943c26 [2021-10-24 10:12:46,871 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:12:46,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:12:46,926 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:12:46,927 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:12:46,931 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:12:46,933 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:12:46,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:12:46,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:12:46,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:12:46,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:12:46,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:12:46,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:12:46,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:12:46,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:12:46,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:12:46,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:12:46,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:12:46,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:12:46,976 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:12:46,979 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:12:46,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:12:46,983 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:12:46,985 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:12:46,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:12:46,995 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:12:46,995 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:12:46,997 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:12:46,998 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:12:46,999 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:12:47,001 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:12:47,002 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:12:47,004 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:12:47,005 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:12:47,006 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:12:47,007 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:12:47,007 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:12:47,008 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:12:47,008 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:12:47,009 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:12:47,010 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:12:47,011 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233643a-a781-406a-b0d4-298ed9087b5e/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 10:12:47,058 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:12:47,058 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:12:47,059 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:12:47,059 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:12:47,059 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:12:47,060 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:12:47,060 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 10:12:47,060 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:12:47,060 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:12:47,060 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 10:12:47,060 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 10:12:47,060 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:12:47,061 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 10:12:47,061 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 10:12:47,061 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 10:12:47,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:12:47,062 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:12:47,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:12:47,062 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:12:47,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:12:47,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:12:47,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:12:47,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:12:47,063 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:12:47,063 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:12:47,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:12:47,064 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:12:47,064 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:12:47,064 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:12:47,064 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:12:47,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:12:47,065 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:12:47,065 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:12:47,065 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:12:47,065 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 10:12:47,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 10:12:47,065 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:12:47,066 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:12:47,066 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:12:47,066 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_d233643a-a781-406a-b0d4-298ed9087b5e/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233643a-a781-406a-b0d4-298ed9087b5e/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75f53c568c86c59ddc62d2fd150ff0a5ed9b51ea17cada3ff1a95dec57d9167c [2021-10-24 10:12:47,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:12:47,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:12:47,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:12:47,332 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:12:47,333 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:12:47,334 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233643a-a781-406a-b0d4-298ed9087b5e/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/locks/test_locks_14-2.c [2021-10-24 10:12:47,399 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233643a-a781-406a-b0d4-298ed9087b5e/bin/utaipan-9zjyvhn0QE/data/c6acf9e8c/cdac2311977048e4b75a38b4952a8d09/FLAGb25c47cdd [2021-10-24 10:12:47,916 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:12:47,925 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233643a-a781-406a-b0d4-298ed9087b5e/sv-benchmarks/c/locks/test_locks_14-2.c [2021-10-24 10:12:47,933 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233643a-a781-406a-b0d4-298ed9087b5e/bin/utaipan-9zjyvhn0QE/data/c6acf9e8c/cdac2311977048e4b75a38b4952a8d09/FLAGb25c47cdd [2021-10-24 10:12:48,264 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233643a-a781-406a-b0d4-298ed9087b5e/bin/utaipan-9zjyvhn0QE/data/c6acf9e8c/cdac2311977048e4b75a38b4952a8d09 [2021-10-24 10:12:48,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:12:48,268 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:12:48,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:12:48,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:12:48,276 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:12:48,277 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:12:48" (1/1) ... [2021-10-24 10:12:48,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74938846 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:12:48, skipping insertion in model container [2021-10-24 10:12:48,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:12:48" (1/1) ... [2021-10-24 10:12:48,288 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:12:48,322 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:12:48,589 WARN L228 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_d233643a-a781-406a-b0d4-298ed9087b5e/sv-benchmarks/c/locks/test_locks_14-2.c[5305,5318] [2021-10-24 10:12:48,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:12:48,602 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:12:48,630 WARN L228 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_d233643a-a781-406a-b0d4-298ed9087b5e/sv-benchmarks/c/locks/test_locks_14-2.c[5305,5318] [2021-10-24 10:12:48,631 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:12:48,645 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:12:48,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:12:48 WrapperNode [2021-10-24 10:12:48,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:12:48,665 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:12:48,665 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:12:48,665 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:12:48,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:12:48" (1/1) ... [2021-10-24 10:12:48,680 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:12:48" (1/1) ... [2021-10-24 10:12:48,717 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:12:48,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:12:48,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:12:48,719 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:12:48,728 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:12:48" (1/1) ... [2021-10-24 10:12:48,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:12:48" (1/1) ... [2021-10-24 10:12:48,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:12:48" (1/1) ... [2021-10-24 10:12:48,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:12:48" (1/1) ... [2021-10-24 10:12:48,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:12:48" (1/1) ... [2021-10-24 10:12:48,763 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:12:48" (1/1) ... [2021-10-24 10:12:48,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:12:48" (1/1) ... [2021-10-24 10:12:48,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:12:48,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:12:48,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:12:48,780 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:12:48,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:12:48" (1/1) ... [2021-10-24 10:12:48,789 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:12:48,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233643a-a781-406a-b0d4-298ed9087b5e/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:12:48,819 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233643a-a781-406a-b0d4-298ed9087b5e/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:12:48,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233643a-a781-406a-b0d4-298ed9087b5e/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:12:48,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:12:48,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:12:48,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-24 10:12:48,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:12:49,629 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:12:49,629 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-24 10:12:49,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:12:49 BoogieIcfgContainer [2021-10-24 10:12:49,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:12:49,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:12:49,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:12:49,640 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:12:49,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:12:48" (1/3) ... [2021-10-24 10:12:49,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35053e68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:12:49, skipping insertion in model container [2021-10-24 10:12:49,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:12:48" (2/3) ... [2021-10-24 10:12:49,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35053e68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:12:49, skipping insertion in model container [2021-10-24 10:12:49,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:12:49" (3/3) ... [2021-10-24 10:12:49,644 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_14-2.c [2021-10-24 10:12:49,654 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:12:49,654 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-24 10:12:49,709 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:12:49,716 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 [2021-10-24 10:12:49,716 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-24 10:12:49,731 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 34 states have (on average 1.911764705882353) internal successors, (65), 35 states have internal predecessors, (65), 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) [2021-10-24 10:12:49,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-24 10:12:49,737 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:12:49,737 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-24 10:12:49,738 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:12:49,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:12:49,744 INFO L82 PathProgramCache]: Analyzing trace with hash -96656291, now seen corresponding path program 1 times [2021-10-24 10:12:49,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:12:49,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847817060] [2021-10-24 10:12:49,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:12:49,756 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:12:49,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:12:50,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:12:50,039 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:12:50,039 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847817060] [2021-10-24 10:12:50,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847817060] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:12:50,040 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:12:50,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-24 10:12:50,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481562505] [2021-10-24 10:12:50,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:12:50,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:12:50,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:12:50,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:12:50,065 INFO L87 Difference]: Start difference. First operand has 36 states, 34 states have (on average 1.911764705882353) internal successors, (65), 35 states have internal predecessors, (65), 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) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-10-24 10:12:50,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:12:50,118 INFO L93 Difference]: Finished difference Result 74 states and 129 transitions. [2021-10-24 10:12:50,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:12:50,119 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) Word has length 6 [2021-10-24 10:12:50,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:12:50,129 INFO L225 Difference]: With dead ends: 74 [2021-10-24 10:12:50,129 INFO L226 Difference]: Without dead ends: 63 [2021-10-24 10:12:50,131 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:12:50,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-10-24 10:12:50,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 33. [2021-10-24 10:12:50,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.84375) internal successors, (59), 32 states have internal predecessors, (59), 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) [2021-10-24 10:12:50,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 59 transitions. [2021-10-24 10:12:50,166 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 59 transitions. Word has length 6 [2021-10-24 10:12:50,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:12:50,166 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 59 transitions. [2021-10-24 10:12:50,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-10-24 10:12:50,167 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 59 transitions. [2021-10-24 10:12:50,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-24 10:12:50,168 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:12:50,168 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-24 10:12:50,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-24 10:12:50,168 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:12:50,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:12:50,169 INFO L82 PathProgramCache]: Analyzing trace with hash -96649099, now seen corresponding path program 1 times [2021-10-24 10:12:50,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:12:50,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853195222] [2021-10-24 10:12:50,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:12:50,170 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:12:50,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:12:50,215 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 10:12:50,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:12:50,295 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-24 10:12:50,296 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 10:12:50,297 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:12:50,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-24 10:12:50,306 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:12:50,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:12:50 BoogieIcfgContainer [2021-10-24 10:12:50,331 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:12:50,332 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:12:50,332 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:12:50,332 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:12:50,332 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:12:49" (3/4) ... [2021-10-24 10:12:50,334 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-24 10:12:50,387 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233643a-a781-406a-b0d4-298ed9087b5e/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 10:12:50,387 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:12:50,389 INFO L168 Benchmark]: Toolchain (without parser) took 2119.94 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 55.6 MB in the beginning and 57.6 MB in the end (delta: -1.9 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:12:50,389 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 86.0 MB. Free memory is still 43.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:12:50,390 INFO L168 Benchmark]: CACSL2BoogieTranslator took 392.66 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 55.4 MB in the beginning and 89.0 MB in the end (delta: -33.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:12:50,390 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.82 ms. Allocated memory is still 113.2 MB. Free memory was 89.0 MB in the beginning and 87.3 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:12:50,390 INFO L168 Benchmark]: Boogie Preprocessor took 56.12 ms. Allocated memory is still 113.2 MB. Free memory was 87.3 MB in the beginning and 85.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:12:50,391 INFO L168 Benchmark]: RCFGBuilder took 856.96 ms. Allocated memory is still 113.2 MB. Free memory was 85.8 MB in the beginning and 90.1 MB in the end (delta: -4.3 MB). Peak memory consumption was 34.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:12:50,391 INFO L168 Benchmark]: TraceAbstraction took 696.83 ms. Allocated memory is still 113.2 MB. Free memory was 89.5 MB in the beginning and 60.7 MB in the end (delta: 28.9 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:12:50,392 INFO L168 Benchmark]: Witness Printer took 55.62 ms. Allocated memory is still 113.2 MB. Free memory was 60.7 MB in the beginning and 57.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:12:50,394 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 86.0 MB. Free memory is still 43.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 392.66 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 55.4 MB in the beginning and 89.0 MB in the end (delta: -33.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.82 ms. Allocated memory is still 113.2 MB. Free memory was 89.0 MB in the beginning and 87.3 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.12 ms. Allocated memory is still 113.2 MB. Free memory was 87.3 MB in the beginning and 85.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 856.96 ms. Allocated memory is still 113.2 MB. Free memory was 85.8 MB in the beginning and 90.1 MB in the end (delta: -4.3 MB). Peak memory consumption was 34.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 696.83 ms. Allocated memory is still 113.2 MB. Free memory was 89.5 MB in the beginning and 60.7 MB in the end (delta: 28.9 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * Witness Printer took 55.62 ms. Allocated memory is still 113.2 MB. Free memory was 60.7 MB in the beginning and 57.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 219]: 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; [L51] int cond; [L53] COND TRUE 1 [L54] cond = __VERIFIER_nondet_int() [L55] COND FALSE !(cond == 0) [L58] lk1 = 0 [L60] lk2 = 0 [L62] lk3 = 0 [L64] lk4 = 0 [L66] lk5 = 0 [L68] lk6 = 0 [L70] lk7 = 0 [L72] lk8 = 0 [L74] lk9 = 0 [L76] lk10 = 0 [L78] lk11 = 0 [L80] lk12 = 0 [L82] lk13 = 0 [L84] lk14 = 0 [L88] COND FALSE !(p1 != 0) [L92] COND FALSE !(p2 != 0) [L96] COND TRUE p3 != 0 [L97] lk3 = 1 [L100] COND TRUE p4 != 0 [L101] lk4 = 1 [L104] COND TRUE p5 != 0 [L105] lk5 = 1 [L108] COND TRUE p6 != 0 [L109] lk6 = 1 [L112] COND FALSE !(p7 != 0) [L116] COND TRUE p8 != 0 [L117] lk8 = 1 [L120] COND FALSE !(p9 != 0) [L124] COND FALSE !(p10 != 0) [L128] COND TRUE p11 != 0 [L129] lk11 = 1 [L132] COND TRUE p12 != 0 [L133] lk12 = 1 [L136] COND TRUE p13 != 0 [L137] lk13 = 1 [L140] COND FALSE !(p14 != 0) [L146] COND FALSE !(p1 != 0) [L151] COND FALSE !(p2 != 0) [L219] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 596.6ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 9.4ms, AutomataDifference: 83.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 63 SDtfs, 59 SDslu, 118 SDs, 0 SdLazy, 11 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 20.8ms AutomataMinimizationTime, 1 MinimizatonAttempts, 30 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 9.5ms SsaConstructionTime, 111.7ms SatisfiabilityAnalysisTime, 145.2ms InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2021-10-24 10:12:50,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233643a-a781-406a-b0d4-298ed9087b5e/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...