./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound10.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_b2bc5180-4b37-4d71-8670-13ea6934c77d/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc5180-4b37-4d71-8670-13ea6934c77d/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc5180-4b37-4d71-8670-13ea6934c77d/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc5180-4b37-4d71-8670-13ea6934c77d/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc5180-4b37-4d71-8670-13ea6934c77d/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc5180-4b37-4d71-8670-13ea6934c77d/bin/utaipan-tZwUujhuQw --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 f5913f104892d2161c7fca45f1b4b94f25718ce08a5c1f24a1d3fced8b0f4ce5 ............................................................................................................................................................................................................................................................................................................................ 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 [2021-10-20 05:53:33,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:53:33,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:53:33,320 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:53:33,320 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:53:33,322 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:53:33,324 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:53:33,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:53:33,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:53:33,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:53:33,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:53:33,333 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:53:33,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:53:33,335 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:53:33,337 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:53:33,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:53:33,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:53:33,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:53:33,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:53:33,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:53:33,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:53:33,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:53:33,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:53:33,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:53:33,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:53:33,372 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:53:33,372 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:53:33,374 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:53:33,374 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:53:33,375 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:53:33,376 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:53:33,388 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:53:33,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:53:33,392 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:53:33,394 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:53:33,395 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:53:33,396 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:53:33,396 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:53:33,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:53:33,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:53:33,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:53:33,399 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc5180-4b37-4d71-8670-13ea6934c77d/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-20 05:53:33,435 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:53:33,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:53:33,436 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:53:33,436 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:53:33,436 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:53:33,437 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:53:33,437 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-20 05:53:33,437 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:53:33,437 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:53:33,438 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-20 05:53:33,438 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-20 05:53:33,438 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:53:33,438 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-20 05:53:33,439 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-20 05:53:33,439 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-20 05:53:33,440 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:53:33,440 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:53:33,440 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-20 05:53:33,440 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:53:33,440 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:53:33,441 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:53:33,441 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:53:33,441 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:53:33,441 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:53:33,442 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:53:33,442 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:53:33,442 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:53:33,442 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:53:33,443 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:53:33,443 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:53:33,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:53:33,443 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:53:33,444 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:53:33,444 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:53:33,444 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-20 05:53:33,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-20 05:53:33,444 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:53:33,445 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:53:33,445 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:53:33,445 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_b2bc5180-4b37-4d71-8670-13ea6934c77d/bin/utaipan-tZwUujhuQw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc5180-4b37-4d71-8670-13ea6934c77d/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f5913f104892d2161c7fca45f1b4b94f25718ce08a5c1f24a1d3fced8b0f4ce5 [2021-10-20 05:53:33,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:53:33,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:53:33,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:53:33,796 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:53:33,797 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:53:33,798 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc5180-4b37-4d71-8670-13ea6934c77d/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound10.c [2021-10-20 05:53:33,881 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc5180-4b37-4d71-8670-13ea6934c77d/bin/utaipan-tZwUujhuQw/data/87d3720e6/f8a73c2643414e3cbb13364716c5e53d/FLAGd9cf26a1f [2021-10-20 05:53:34,366 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:53:34,369 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc5180-4b37-4d71-8670-13ea6934c77d/sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound10.c [2021-10-20 05:53:34,382 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc5180-4b37-4d71-8670-13ea6934c77d/bin/utaipan-tZwUujhuQw/data/87d3720e6/f8a73c2643414e3cbb13364716c5e53d/FLAGd9cf26a1f [2021-10-20 05:53:34,718 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc5180-4b37-4d71-8670-13ea6934c77d/bin/utaipan-tZwUujhuQw/data/87d3720e6/f8a73c2643414e3cbb13364716c5e53d [2021-10-20 05:53:34,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:53:34,734 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:53:34,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:53:34,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:53:34,740 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:53:34,740 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:53:34" (1/1) ... [2021-10-20 05:53:34,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fd0efb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:34, skipping insertion in model container [2021-10-20 05:53:34,742 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:53:34" (1/1) ... [2021-10-20 05:53:34,749 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:53:34,764 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:53:34,894 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_b2bc5180-4b37-4d71-8670-13ea6934c77d/sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound10.c[555,568] [2021-10-20 05:53:34,908 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:53:34,919 INFO L203 MainTranslator]: Completed pre-run [2021-10-20 05:53:34,943 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_b2bc5180-4b37-4d71-8670-13ea6934c77d/sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound10.c[555,568] [2021-10-20 05:53:34,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:53:34,964 INFO L208 MainTranslator]: Completed translation [2021-10-20 05:53:34,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:34 WrapperNode [2021-10-20 05:53:34,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:53:34,967 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-20 05:53:34,967 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-20 05:53:34,967 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-20 05:53:34,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:34" (1/1) ... [2021-10-20 05:53:34,992 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:34" (1/1) ... [2021-10-20 05:53:35,013 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-20 05:53:35,014 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-20 05:53:35,014 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-20 05:53:35,014 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-20 05:53:35,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:34" (1/1) ... [2021-10-20 05:53:35,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:34" (1/1) ... [2021-10-20 05:53:35,025 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:34" (1/1) ... [2021-10-20 05:53:35,025 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:34" (1/1) ... [2021-10-20 05:53:35,029 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:34" (1/1) ... [2021-10-20 05:53:35,033 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:34" (1/1) ... [2021-10-20 05:53:35,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:34" (1/1) ... [2021-10-20 05:53:35,037 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-20 05:53:35,038 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-20 05:53:35,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-20 05:53:35,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-20 05:53:35,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:34" (1/1) ... [2021-10-20 05:53:35,048 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:53:35,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc5180-4b37-4d71-8670-13ea6934c77d/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:53:35,079 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc5180-4b37-4d71-8670-13ea6934c77d/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-20 05:53:35,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc5180-4b37-4d71-8670-13ea6934c77d/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-20 05:53:35,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-20 05:53:35,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-20 05:53:35,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-20 05:53:35,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-20 05:53:35,454 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-20 05:53:35,455 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-10-20 05:53:35,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:53:35 BoogieIcfgContainer [2021-10-20 05:53:35,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-20 05:53:35,461 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-20 05:53:35,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-20 05:53:35,465 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-20 05:53:35,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:53:34" (1/3) ... [2021-10-20 05:53:35,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@467a5ad8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:53:35, skipping insertion in model container [2021-10-20 05:53:35,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:34" (2/3) ... [2021-10-20 05:53:35,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@467a5ad8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:53:35, skipping insertion in model container [2021-10-20 05:53:35,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:53:35" (3/3) ... [2021-10-20 05:53:35,469 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-u_valuebound10.c [2021-10-20 05:53:35,476 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-20 05:53:35,478 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-20 05:53:35,566 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-20 05:53:35,574 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 [2021-10-20 05:53:35,575 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-20 05:53:35,592 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 11 states have internal predecessors, (15), 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) [2021-10-20 05:53:35,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-20 05:53:35,598 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:53:35,599 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-20 05:53:35,599 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:53:35,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:53:35,607 INFO L82 PathProgramCache]: Analyzing trace with hash 2944441, now seen corresponding path program 1 times [2021-10-20 05:53:35,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:53:35,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288266322] [2021-10-20 05:53:35,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:53:35,621 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:53:35,852 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-20 05:53:35,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1810554177] [2021-10-20 05:53:35,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:53:35,855 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:53:35,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc5180-4b37-4d71-8670-13ea6934c77d/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:53:35,858 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc5180-4b37-4d71-8670-13ea6934c77d/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 05:53:35,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc5180-4b37-4d71-8670-13ea6934c77d/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-20 05:53:35,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:53:35,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-20 05:53:35,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:53:36,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:53:36,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:53:36,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:53:36,208 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:53:36,208 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288266322] [2021-10-20 05:53:36,208 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-20 05:53:36,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810554177] [2021-10-20 05:53:36,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810554177] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:53:36,210 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:53:36,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-20 05:53:36,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770638728] [2021-10-20 05:53:36,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-20 05:53:36,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:53:36,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-20 05:53:36,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-20 05:53:36,234 INFO L87 Difference]: Start difference. First operand has 12 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 11 states have internal predecessors, (15), 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 5 states, 5 states have (on average 1.2) 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) [2021-10-20 05:53:36,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:53:36,503 INFO L93 Difference]: Finished difference Result 25 states and 34 transitions. [2021-10-20 05:53:36,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-20 05:53:36,506 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) 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 4 [2021-10-20 05:53:36,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:53:36,514 INFO L225 Difference]: With dead ends: 25 [2021-10-20 05:53:36,514 INFO L226 Difference]: Without dead ends: 12 [2021-10-20 05:53:36,517 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 49.8ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-20 05:53:36,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-10-20 05:53:36,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 8. [2021-10-20 05:53:36,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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) [2021-10-20 05:53:36,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2021-10-20 05:53:36,549 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2021-10-20 05:53:36,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:53:36,550 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2021-10-20 05:53:36,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) 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) [2021-10-20 05:53:36,552 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2021-10-20 05:53:36,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-20 05:53:36,553 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:53:36,553 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:53:36,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc5180-4b37-4d71-8670-13ea6934c77d/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-20 05:53:36,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc5180-4b37-4d71-8670-13ea6934c77d/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:53:36,781 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:53:36,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:53:36,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1823395634, now seen corresponding path program 1 times [2021-10-20 05:53:36,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:53:36,782 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529131150] [2021-10-20 05:53:36,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:53:36,782 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:53:36,796 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-20 05:53:36,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [340086629] [2021-10-20 05:53:36,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:53:36,796 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:53:36,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc5180-4b37-4d71-8670-13ea6934c77d/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:53:36,798 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc5180-4b37-4d71-8670-13ea6934c77d/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 05:53:36,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc5180-4b37-4d71-8670-13ea6934c77d/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-20 05:53:36,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-20 05:53:36,859 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-20 05:53:36,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-20 05:53:36,903 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-20 05:53:36,906 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-20 05:53:36,908 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:53:36,911 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:53:36,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc5180-4b37-4d71-8670-13ea6934c77d/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-10-20 05:53:37,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc5180-4b37-4d71-8670-13ea6934c77d/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:53:37,142 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-20 05:53:37,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:53:37 BoogieIcfgContainer [2021-10-20 05:53:37,180 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-20 05:53:37,181 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-20 05:53:37,181 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-20 05:53:37,181 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-20 05:53:37,183 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:53:35" (3/4) ... [2021-10-20 05:53:37,186 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-20 05:53:37,241 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc5180-4b37-4d71-8670-13ea6934c77d/bin/utaipan-tZwUujhuQw/witness.graphml [2021-10-20 05:53:37,242 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-20 05:53:37,244 INFO L168 Benchmark]: Toolchain (without parser) took 2508.20 ms. Allocated memory was 83.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Free memory was 44.9 MB in the beginning and 52.9 MB in the end (delta: -8.0 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2021-10-20 05:53:37,245 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 83.9 MB. Free memory is still 61.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:53:37,246 INFO L168 Benchmark]: CACSL2BoogieTranslator took 229.96 ms. Allocated memory was 83.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Free memory was 44.6 MB in the beginning and 83.0 MB in the end (delta: -38.4 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. [2021-10-20 05:53:37,247 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.34 ms. Allocated memory is still 104.9 MB. Free memory was 83.0 MB in the beginning and 83.4 MB in the end (delta: -414.8 kB). Peak memory consumption was 4.0 MB. Max. memory is 16.1 GB. [2021-10-20 05:53:37,248 INFO L168 Benchmark]: Boogie Preprocessor took 23.29 ms. Allocated memory is still 104.9 MB. Free memory was 83.4 MB in the beginning and 82.7 MB in the end (delta: 682.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:53:37,249 INFO L168 Benchmark]: RCFGBuilder took 420.65 ms. Allocated memory is still 104.9 MB. Free memory was 82.0 MB in the beginning and 68.7 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-20 05:53:37,250 INFO L168 Benchmark]: TraceAbstraction took 1718.90 ms. Allocated memory is still 104.9 MB. Free memory was 68.7 MB in the beginning and 55.0 MB in the end (delta: 13.7 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. [2021-10-20 05:53:37,250 INFO L168 Benchmark]: Witness Printer took 60.99 ms. Allocated memory is still 104.9 MB. Free memory was 55.0 MB in the beginning and 52.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:53:37,256 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 83.9 MB. Free memory is still 61.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 229.96 ms. Allocated memory was 83.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Free memory was 44.6 MB in the beginning and 83.0 MB in the end (delta: -38.4 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.34 ms. Allocated memory is still 104.9 MB. Free memory was 83.0 MB in the beginning and 83.4 MB in the end (delta: -414.8 kB). Peak memory consumption was 4.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.29 ms. Allocated memory is still 104.9 MB. Free memory was 83.4 MB in the beginning and 82.7 MB in the end (delta: 682.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 420.65 ms. Allocated memory is still 104.9 MB. Free memory was 82.0 MB in the beginning and 68.7 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1718.90 ms. Allocated memory is still 104.9 MB. Free memory was 68.7 MB in the beginning and 55.0 MB in the end (delta: 13.7 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. * Witness Printer took 60.99 ms. Allocated memory is still 104.9 MB. Free memory was 55.0 MB in the beginning and 52.9 MB in the end (delta: 2.1 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: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L23] unsigned int z, k; [L24] long long x, y, c; [L25] z = __VERIFIER_nondet_uint() [L13] COND FALSE !(!cond) [L27] k = __VERIFIER_nondet_uint() [L13] COND FALSE !(!cond) [L30] x = 1 [L31] y = z [L32] c = 1 [L34] COND TRUE 1 [L16] COND FALSE !(!(cond)) [L37] COND TRUE !(c < k) [L46] x = x * (z - 1) [L16] COND TRUE !(cond) [L18] reach_error() - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1573.6ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 11.4ms, AutomataDifference: 298.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 6 SDtfs, 9 SDslu, 12 SDs, 0 SdLazy, 13 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 223.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 49.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 19.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 12.4ms SsaConstructionTime, 63.0ms SatisfiabilityAnalysisTime, 244.8ms InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 4 NumberOfNonLiveVariables, 50 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2021-10-20 05:53:37,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc5180-4b37-4d71-8670-13ea6934c77d/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...