./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe015_power.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65a2c7c-0a18-4922-9e9a-112f06369119/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65a2c7c-0a18-4922-9e9a-112f06369119/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65a2c7c-0a18-4922-9e9a-112f06369119/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65a2c7c-0a18-4922-9e9a-112f06369119/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe015_power.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65a2c7c-0a18-4922-9e9a-112f06369119/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65a2c7c-0a18-4922-9e9a-112f06369119/bin/utaipan-Q6hlc19bkW --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 1568f4b0615eb98ed6bee584aeda19485d9df0ed08c84a8233a5817e939c5388 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 15:26:41,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:26:41,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:26:41,213 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:26:41,214 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:26:41,217 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:26:41,220 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:26:41,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:26:41,225 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:26:41,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:26:41,232 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:26:41,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:26:41,235 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:26:41,237 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:26:41,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:26:41,241 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:26:41,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:26:41,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:26:41,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:26:41,252 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:26:41,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:26:41,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:26:41,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:26:41,258 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:26:41,268 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:26:41,269 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:26:41,269 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:26:41,271 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:26:41,272 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:26:41,273 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:26:41,273 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:26:41,274 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:26:41,276 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:26:41,278 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:26:41,280 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:26:41,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:26:41,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:26:41,282 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:26:41,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:26:41,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:26:41,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:26:41,285 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65a2c7c-0a18-4922-9e9a-112f06369119/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 15:26:41,326 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:26:41,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:26:41,327 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:26:41,328 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:26:41,329 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:26:41,329 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:26:41,329 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:26:41,330 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:26:41,330 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:26:41,330 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:26:41,331 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:26:41,332 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:26:41,332 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:26:41,332 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:26:41,333 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:26:41,333 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:26:41,333 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:26:41,334 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:26:41,334 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:26:41,335 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:26:41,335 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:26:41,335 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:26:41,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:26:41,336 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:26:41,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:26:41,336 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:26:41,337 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:26:41,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:26:41,338 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:26:41,338 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:26:41,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:26:41,339 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:26:41,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:26:41,340 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:26:41,340 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:26:41,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:26:41,341 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:26:41,341 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:26:41,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:26:41,341 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:26:41,342 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:26:41,342 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65a2c7c-0a18-4922-9e9a-112f06369119/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65a2c7c-0a18-4922-9e9a-112f06369119/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1568f4b0615eb98ed6bee584aeda19485d9df0ed08c84a8233a5817e939c5388 [2022-11-23 15:26:41,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:26:41,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:26:41,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:26:41,739 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:26:41,739 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:26:41,741 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65a2c7c-0a18-4922-9e9a-112f06369119/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/pthread-wmm/safe015_power.oepc.i [2022-11-23 15:26:44,675 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:26:44,992 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:26:44,993 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65a2c7c-0a18-4922-9e9a-112f06369119/sv-benchmarks/c/pthread-wmm/safe015_power.oepc.i [2022-11-23 15:26:45,008 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65a2c7c-0a18-4922-9e9a-112f06369119/bin/utaipan-Q6hlc19bkW/data/f73de9aae/1de8f39c57894b0584cac99f61cd5f0e/FLAGa44431977 [2022-11-23 15:26:45,024 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65a2c7c-0a18-4922-9e9a-112f06369119/bin/utaipan-Q6hlc19bkW/data/f73de9aae/1de8f39c57894b0584cac99f61cd5f0e [2022-11-23 15:26:45,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:26:45,028 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:26:45,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:26:45,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:26:45,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:26:45,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:26:45" (1/1) ... [2022-11-23 15:26:45,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d08a149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:45, skipping insertion in model container [2022-11-23 15:26:45,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:26:45" (1/1) ... [2022-11-23 15:26:45,045 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:26:45,138 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:26:45,309 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65a2c7c-0a18-4922-9e9a-112f06369119/sv-benchmarks/c/pthread-wmm/safe015_power.oepc.i[995,1008] [2022-11-23 15:26:45,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:26:45,670 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:26:45,686 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65a2c7c-0a18-4922-9e9a-112f06369119/sv-benchmarks/c/pthread-wmm/safe015_power.oepc.i[995,1008] [2022-11-23 15:26:45,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:26:45,834 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:26:45,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:45 WrapperNode [2022-11-23 15:26:45,835 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:26:45,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:26:45,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:26:45,837 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:26:45,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:45" (1/1) ... [2022-11-23 15:26:45,883 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:45" (1/1) ... [2022-11-23 15:26:45,932 INFO L138 Inliner]: procedures = 176, calls = 86, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 225 [2022-11-23 15:26:45,933 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:26:45,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:26:45,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:26:45,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:26:45,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:45" (1/1) ... [2022-11-23 15:26:45,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:45" (1/1) ... [2022-11-23 15:26:45,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:45" (1/1) ... [2022-11-23 15:26:45,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:45" (1/1) ... [2022-11-23 15:26:45,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:45" (1/1) ... [2022-11-23 15:26:46,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:45" (1/1) ... [2022-11-23 15:26:46,006 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:45" (1/1) ... [2022-11-23 15:26:46,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:45" (1/1) ... [2022-11-23 15:26:46,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:26:46,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:26:46,014 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:26:46,014 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:26:46,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:45" (1/1) ... [2022-11-23 15:26:46,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:26:46,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65a2c7c-0a18-4922-9e9a-112f06369119/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:26:46,061 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65a2c7c-0a18-4922-9e9a-112f06369119/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:26:46,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65a2c7c-0a18-4922-9e9a-112f06369119/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:26:46,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:26:46,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:26:46,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-23 15:26:46,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:26:46,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:26:46,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:26:46,117 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-23 15:26:46,117 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-23 15:26:46,117 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-23 15:26:46,117 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-23 15:26:46,118 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-23 15:26:46,118 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-23 15:26:46,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:26:46,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-23 15:26:46,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:26:46,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:26:46,120 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 15:26:46,356 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:26:46,358 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:26:46,975 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:26:47,423 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:26:47,424 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 15:26:47,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:26:47 BoogieIcfgContainer [2022-11-23 15:26:47,426 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:26:47,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:26:47,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:26:47,432 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:26:47,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:26:45" (1/3) ... [2022-11-23 15:26:47,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10cdb772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:26:47, skipping insertion in model container [2022-11-23 15:26:47,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:45" (2/3) ... [2022-11-23 15:26:47,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10cdb772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:26:47, skipping insertion in model container [2022-11-23 15:26:47,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:26:47" (3/3) ... [2022-11-23 15:26:47,440 INFO L112 eAbstractionObserver]: Analyzing ICFG safe015_power.oepc.i [2022-11-23 15:26:47,449 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 15:26:47,460 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:26:47,460 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-23 15:26:47,460 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 15:26:47,556 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 15:26:47,605 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 15:26:47,629 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 141 places, 133 transitions, 281 flow [2022-11-23 15:26:47,634 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 141 places, 133 transitions, 281 flow [2022-11-23 15:26:47,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 133 transitions, 281 flow [2022-11-23 15:26:47,731 INFO L130 PetriNetUnfolder]: 2/130 cut-off events. [2022-11-23 15:26:47,731 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 15:26:47,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 130 events. 2/130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 55 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2022-11-23 15:26:47,740 INFO L119 LiptonReduction]: Number of co-enabled transitions 2064 [2022-11-23 15:26:59,660 INFO L134 LiptonReduction]: Checked pairs total: 5521 [2022-11-23 15:26:59,661 INFO L136 LiptonReduction]: Total number of compositions: 120 [2022-11-23 15:26:59,669 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 37 places, 28 transitions, 71 flow [2022-11-23 15:26:59,762 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 846 states, 841 states have (on average 3.342449464922711) internal successors, (2811), 845 states have internal predecessors, (2811), 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) [2022-11-23 15:26:59,781 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:26:59,788 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@642e7daf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:26:59,788 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-23 15:26:59,794 INFO L276 IsEmpty]: Start isEmpty. Operand has 846 states, 841 states have (on average 3.342449464922711) internal successors, (2811), 845 states have internal predecessors, (2811), 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) [2022-11-23 15:26:59,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 15:26:59,799 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:26:59,800 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 15:26:59,801 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-11-23 15:26:59,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:26:59,806 INFO L85 PathProgramCache]: Analyzing trace with hash 950641707, now seen corresponding path program 1 times [2022-11-23 15:26:59,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:26:59,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22861857] [2022-11-23 15:26:59,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:26:59,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:26:59,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:27:00,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:27:00,321 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:27:00,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22861857] [2022-11-23 15:27:00,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22861857] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:27:00,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:27:00,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 15:27:00,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008548304] [2022-11-23 15:27:00,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:27:00,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:27:00,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:27:00,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:27:00,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:27:00,358 INFO L87 Difference]: Start difference. First operand has 846 states, 841 states have (on average 3.342449464922711) internal successors, (2811), 845 states have internal predecessors, (2811), 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 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-23 15:27:00,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:27:00,518 INFO L93 Difference]: Finished difference Result 718 states and 2243 transitions. [2022-11-23 15:27:00,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:27:00,521 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-11-23 15:27:00,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:27:00,547 INFO L225 Difference]: With dead ends: 718 [2022-11-23 15:27:00,550 INFO L226 Difference]: Without dead ends: 718 [2022-11-23 15:27:00,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:27:00,557 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:27:00,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:27:00,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2022-11-23 15:27:00,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 718. [2022-11-23 15:27:00,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 715 states have (on average 3.1370629370629373) internal successors, (2243), 717 states have internal predecessors, (2243), 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) [2022-11-23 15:27:00,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 2243 transitions. [2022-11-23 15:27:00,700 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 2243 transitions. Word has length 5 [2022-11-23 15:27:00,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:27:00,701 INFO L495 AbstractCegarLoop]: Abstraction has 718 states and 2243 transitions. [2022-11-23 15:27:00,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-23 15:27:00,703 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 2243 transitions. [2022-11-23 15:27:00,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 15:27:00,704 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:27:00,705 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 15:27:00,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:27:00,705 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-11-23 15:27:00,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:27:00,706 INFO L85 PathProgramCache]: Analyzing trace with hash -594877354, now seen corresponding path program 1 times [2022-11-23 15:27:00,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:27:00,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492345725] [2022-11-23 15:27:00,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:27:00,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:27:00,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:27:00,755 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:27:00,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:27:00,818 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 15:27:00,818 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:27:00,820 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location P1Err1ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2022-11-23 15:27:00,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2022-11-23 15:27:00,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err1ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2022-11-23 15:27:00,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2022-11-23 15:27:00,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2022-11-23 15:27:00,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2022-11-23 15:27:00,823 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-11-23 15:27:00,823 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 8 remaining) [2022-11-23 15:27:00,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:27:00,827 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 15:27:00,831 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 15:27:00,831 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:27:00,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:27:00 BasicIcfg [2022-11-23 15:27:00,885 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:27:00,886 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:27:00,886 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:27:00,886 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:27:00,887 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:26:47" (3/4) ... [2022-11-23 15:27:00,888 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-23 15:27:01,010 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65a2c7c-0a18-4922-9e9a-112f06369119/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 15:27:01,010 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:27:01,011 INFO L158 Benchmark]: Toolchain (without parser) took 15983.28ms. Allocated memory was 134.2MB in the beginning and 247.5MB in the end (delta: 113.2MB). Free memory was 67.7MB in the beginning and 94.9MB in the end (delta: -27.2MB). Peak memory consumption was 87.5MB. Max. memory is 16.1GB. [2022-11-23 15:27:01,012 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 134.2MB. Free memory is still 109.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:27:01,012 INFO L158 Benchmark]: CACSL2BoogieTranslator took 805.88ms. Allocated memory was 134.2MB in the beginning and 169.9MB in the end (delta: 35.7MB). Free memory was 67.6MB in the beginning and 120.0MB in the end (delta: -52.5MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2022-11-23 15:27:01,012 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.41ms. Allocated memory is still 169.9MB. Free memory was 119.2MB in the beginning and 116.3MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:27:01,013 INFO L158 Benchmark]: Boogie Preprocessor took 79.55ms. Allocated memory is still 169.9MB. Free memory was 116.3MB in the beginning and 113.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:27:01,013 INFO L158 Benchmark]: RCFGBuilder took 1412.63ms. Allocated memory is still 169.9MB. Free memory was 113.7MB in the beginning and 117.4MB in the end (delta: -3.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2022-11-23 15:27:01,014 INFO L158 Benchmark]: TraceAbstraction took 13456.92ms. Allocated memory was 169.9MB in the beginning and 247.5MB in the end (delta: 77.6MB). Free memory was 116.4MB in the beginning and 101.2MB in the end (delta: 15.2MB). Peak memory consumption was 94.9MB. Max. memory is 16.1GB. [2022-11-23 15:27:01,014 INFO L158 Benchmark]: Witness Printer took 124.81ms. Allocated memory is still 247.5MB. Free memory was 101.2MB in the beginning and 94.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-23 15:27:01,017 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 134.2MB. Free memory is still 109.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 805.88ms. Allocated memory was 134.2MB in the beginning and 169.9MB in the end (delta: 35.7MB). Free memory was 67.6MB in the beginning and 120.0MB in the end (delta: -52.5MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.41ms. Allocated memory is still 169.9MB. Free memory was 119.2MB in the beginning and 116.3MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.55ms. Allocated memory is still 169.9MB. Free memory was 116.3MB in the beginning and 113.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1412.63ms. Allocated memory is still 169.9MB. Free memory was 113.7MB in the beginning and 117.4MB in the end (delta: -3.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * TraceAbstraction took 13456.92ms. Allocated memory was 169.9MB in the beginning and 247.5MB in the end (delta: 77.6MB). Free memory was 116.4MB in the beginning and 101.2MB in the end (delta: 15.2MB). Peak memory consumption was 94.9MB. Max. memory is 16.1GB. * Witness Printer took 124.81ms. Allocated memory is still 247.5MB. Free memory was 101.2MB in the beginning and 94.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.0s, 141 PlacesBefore, 37 PlacesAfterwards, 133 TransitionsBefore, 28 TransitionsAfterwards, 2064 CoEnabledTransitionPairs, 7 FixpointIterations, 59 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 120 TotalNumberOfCompositions, 5521 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2313, independent: 2113, independent conditional: 0, independent unconditional: 2113, dependent: 200, dependent conditional: 0, dependent unconditional: 200, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1374, independent: 1322, independent conditional: 0, independent unconditional: 1322, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1374, independent: 1299, independent conditional: 0, independent unconditional: 1299, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 75, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 934, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 894, dependent conditional: 0, dependent unconditional: 894, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2313, independent: 791, independent conditional: 0, independent unconditional: 791, dependent: 148, dependent conditional: 0, dependent unconditional: 148, unknown: 1374, unknown conditional: 0, unknown unconditional: 1374] , Statistics on independence cache: Total cache size (in pairs): 101, Positive cache size: 78, Positive conditional cache size: 0, Positive unconditional cache size: 78, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p2_EAX = 0; [L715] 0 _Bool __unbuffered_p2_EAX$flush_delayed; [L716] 0 int __unbuffered_p2_EAX$mem_tmp; [L717] 0 _Bool __unbuffered_p2_EAX$r_buff0_thd0; [L718] 0 _Bool __unbuffered_p2_EAX$r_buff0_thd1; [L719] 0 _Bool __unbuffered_p2_EAX$r_buff0_thd2; [L720] 0 _Bool __unbuffered_p2_EAX$r_buff0_thd3; [L721] 0 _Bool __unbuffered_p2_EAX$r_buff1_thd0; [L722] 0 _Bool __unbuffered_p2_EAX$r_buff1_thd1; [L723] 0 _Bool __unbuffered_p2_EAX$r_buff1_thd2; [L724] 0 _Bool __unbuffered_p2_EAX$r_buff1_thd3; [L725] 0 _Bool __unbuffered_p2_EAX$read_delayed; [L726] 0 int *__unbuffered_p2_EAX$read_delayed_var; [L727] 0 int __unbuffered_p2_EAX$w_buff0; [L728] 0 _Bool __unbuffered_p2_EAX$w_buff0_used; [L729] 0 int __unbuffered_p2_EAX$w_buff1; [L730] 0 _Bool __unbuffered_p2_EAX$w_buff1_used; [L731] 0 _Bool main$tmp_guard0; [L732] 0 _Bool main$tmp_guard1; [L734] 0 int x = 0; [L735] 0 _Bool x$flush_delayed; [L736] 0 int x$mem_tmp; [L737] 0 _Bool x$r_buff0_thd0; [L738] 0 _Bool x$r_buff0_thd1; [L739] 0 _Bool x$r_buff0_thd2; [L740] 0 _Bool x$r_buff0_thd3; [L741] 0 _Bool x$r_buff1_thd0; [L742] 0 _Bool x$r_buff1_thd1; [L743] 0 _Bool x$r_buff1_thd2; [L744] 0 _Bool x$r_buff1_thd3; [L745] 0 _Bool x$read_delayed; [L746] 0 int *x$read_delayed_var; [L747] 0 int x$w_buff0; [L748] 0 _Bool x$w_buff0_used; [L749] 0 int x$w_buff1; [L750] 0 _Bool x$w_buff1_used; [L752] 0 int y = 0; [L753] 0 _Bool weak$$choice0; [L754] 0 _Bool weak$$choice1; [L755] 0 _Bool weak$$choice2; [L871] 0 pthread_t t2121; [L872] FCALL, FORK 0 pthread_create(&t2121, ((void *)0), P0, ((void *)0)) VAL [#in~arg={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=0, __unbuffered_p2_EAX$read_delayed_var={0:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t2121, ((void *)0), P0, ((void *)0))=-1, t2121={6:0}, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x={3:0}, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L873] 0 pthread_t t2122; [L874] FCALL, FORK 0 pthread_create(&t2122, ((void *)0), P1, ((void *)0)) VAL [#in~arg={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=0, __unbuffered_p2_EAX$read_delayed_var={0:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t2122, ((void *)0), P1, ((void *)0))=0, t2121={6:0}, t2122={5:0}, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x={3:0}, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L789] 2 x$w_buff1 = x$w_buff0 [L790] 2 x$w_buff0 = 1 [L791] 2 x$w_buff1_used = x$w_buff0_used [L792] 2 x$w_buff0_used = (_Bool)1 [L793] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L793] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L794] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L795] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L796] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L797] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L798] 2 x$r_buff0_thd2 = (_Bool)1 VAL [#in~arg={0:0}, #in~arg={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=0, __unbuffered_p2_EAX$read_delayed_var={0:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x={3:0}, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0] [L801] 2 x$w_buff1 = x$w_buff0 [L802] 2 x$w_buff0 = 2 [L803] 2 x$w_buff1_used = x$w_buff0_used [L804] 2 x$w_buff0_used = (_Bool)1 [L805] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L19] COND TRUE 2 !expression [L19] 2 reach_error() VAL [#in~arg={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=0, __unbuffered_p2_EAX$read_delayed_var={0:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, expression=0, main$tmp_guard0=0, main$tmp_guard1=0, unknown-#in~expression-unknown=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x={3:0}, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=1, x$w_buff1_used=1, y=0] - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 872]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 876]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 874]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 160 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 13.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40 IncrementalHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 1 mSDtfsCounter, 40 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=846occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 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! [2022-11-23 15:27:01,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65a2c7c-0a18-4922-9e9a-112f06369119/bin/utaipan-Q6hlc19bkW/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