./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/large_const.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c93d7a-f8ef-4f6d-80d4-9a0942b8d546/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c93d7a-f8ef-4f6d-80d4-9a0942b8d546/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c93d7a-f8ef-4f6d-80d4-9a0942b8d546/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c93d7a-f8ef-4f6d-80d4-9a0942b8d546/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/large_const.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c93d7a-f8ef-4f6d-80d4-9a0942b8d546/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c93d7a-f8ef-4f6d-80d4-9a0942b8d546/bin/utaipan-UUZaoUuFF8 --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 142d17131671d2eab991ea08656e3b8bfe555dee984fe7672c9a027e971df0f8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:00:31,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:00:31,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:00:31,923 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:00:31,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:00:31,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:00:31,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:00:31,934 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:00:31,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:00:31,937 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:00:31,938 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:00:31,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:00:31,940 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:00:31,941 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:00:31,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:00:31,944 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:00:31,950 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:00:31,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:00:31,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:00:31,963 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:00:31,965 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:00:31,967 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:00:31,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:00:31,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:00:31,981 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:00:31,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:00:31,983 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:00:31,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:00:31,985 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:00:31,987 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:00:31,988 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:00:31,989 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:00:31,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:00:31,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:00:31,994 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:00:31,994 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:00:31,995 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:00:31,995 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:00:31,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:00:31,996 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:00:31,997 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:00:31,998 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c93d7a-f8ef-4f6d-80d4-9a0942b8d546/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 02:00:32,041 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:00:32,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:00:32,043 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:00:32,044 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:00:32,044 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:00:32,044 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:00:32,045 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:00:32,045 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:00:32,045 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:00:32,046 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:00:32,053 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:00:32,054 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:00:32,054 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:00:32,054 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:00:32,055 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:00:32,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:00:32,056 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 02:00:32,056 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:00:32,056 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 02:00:32,057 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:00:32,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:00:32,057 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:00:32,057 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:00:32,058 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:00:32,058 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 02:00:32,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:00:32,059 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:00:32,059 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:00:32,059 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:00:32,061 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:00:32,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:00:32,062 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:00:32,062 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:00:32,062 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:00:32,063 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:00:32,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:00:32,063 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:00:32,063 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:00:32,064 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:00:32,064 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_28c93d7a-f8ef-4f6d-80d4-9a0942b8d546/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c93d7a-f8ef-4f6d-80d4-9a0942b8d546/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 142d17131671d2eab991ea08656e3b8bfe555dee984fe7672c9a027e971df0f8 [2021-11-07 02:00:32,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:00:32,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:00:32,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:00:32,392 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:00:32,392 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:00:32,393 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c93d7a-f8ef-4f6d-80d4-9a0942b8d546/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/loop-invgen/large_const.i [2021-11-07 02:00:32,490 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c93d7a-f8ef-4f6d-80d4-9a0942b8d546/bin/utaipan-UUZaoUuFF8/data/ecce59a21/ac38f08d266a494ea2b8372c4b28ad74/FLAGa3cac9f33 [2021-11-07 02:00:33,001 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:00:33,002 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c93d7a-f8ef-4f6d-80d4-9a0942b8d546/sv-benchmarks/c/loop-invgen/large_const.i [2021-11-07 02:00:33,008 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c93d7a-f8ef-4f6d-80d4-9a0942b8d546/bin/utaipan-UUZaoUuFF8/data/ecce59a21/ac38f08d266a494ea2b8372c4b28ad74/FLAGa3cac9f33 [2021-11-07 02:00:33,379 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c93d7a-f8ef-4f6d-80d4-9a0942b8d546/bin/utaipan-UUZaoUuFF8/data/ecce59a21/ac38f08d266a494ea2b8372c4b28ad74 [2021-11-07 02:00:33,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:00:33,383 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:00:33,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:00:33,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:00:33,399 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:00:33,400 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:00:33" (1/1) ... [2021-11-07 02:00:33,401 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dd81b2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:33, skipping insertion in model container [2021-11-07 02:00:33,401 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:00:33" (1/1) ... [2021-11-07 02:00:33,407 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:00:33,423 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:00:33,598 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_28c93d7a-f8ef-4f6d-80d4-9a0942b8d546/sv-benchmarks/c/loop-invgen/large_const.i[893,906] [2021-11-07 02:00:33,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:00:33,620 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:00:33,632 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_28c93d7a-f8ef-4f6d-80d4-9a0942b8d546/sv-benchmarks/c/loop-invgen/large_const.i[893,906] [2021-11-07 02:00:33,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:00:33,652 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:00:33,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:33 WrapperNode [2021-11-07 02:00:33,652 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:00:33,653 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:00:33,654 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:00:33,654 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:00:33,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:33" (1/1) ... [2021-11-07 02:00:33,669 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:33" (1/1) ... [2021-11-07 02:00:33,690 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:00:33,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:00:33,691 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:00:33,691 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:00:33,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:33" (1/1) ... [2021-11-07 02:00:33,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:33" (1/1) ... [2021-11-07 02:00:33,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:33" (1/1) ... [2021-11-07 02:00:33,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:33" (1/1) ... [2021-11-07 02:00:33,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:33" (1/1) ... [2021-11-07 02:00:33,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:33" (1/1) ... [2021-11-07 02:00:33,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:33" (1/1) ... [2021-11-07 02:00:33,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:00:33,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:00:33,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:00:33,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:00:33,715 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:33" (1/1) ... [2021-11-07 02:00:33,723 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:00:33,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c93d7a-f8ef-4f6d-80d4-9a0942b8d546/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:00:33,761 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c93d7a-f8ef-4f6d-80d4-9a0942b8d546/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:00:33,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c93d7a-f8ef-4f6d-80d4-9a0942b8d546/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:00:33,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 02:00:33,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:00:33,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:00:33,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:00:34,098 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:00:34,098 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-07 02:00:34,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:00:34 BoogieIcfgContainer [2021-11-07 02:00:34,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:00:34,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:00:34,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:00:34,107 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:00:34,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:00:33" (1/3) ... [2021-11-07 02:00:34,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e04a7f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:00:34, skipping insertion in model container [2021-11-07 02:00:34,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:33" (2/3) ... [2021-11-07 02:00:34,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e04a7f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:00:34, skipping insertion in model container [2021-11-07 02:00:34,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:00:34" (3/3) ... [2021-11-07 02:00:34,110 INFO L111 eAbstractionObserver]: Analyzing ICFG large_const.i [2021-11-07 02:00:34,116 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:00:34,117 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 02:00:34,165 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:00:34,171 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 02:00:34,172 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 02:00:34,186 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 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) [2021-11-07 02:00:34,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-07 02:00:34,208 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:00:34,209 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-07 02:00:34,210 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:00:34,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:00:34,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1566692524, now seen corresponding path program 1 times [2021-11-07 02:00:34,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:00:34,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414983600] [2021-11-07 02:00:34,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:00:34,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:00:34,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:00:34,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:00:34,414 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:00:34,414 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414983600] [2021-11-07 02:00:34,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414983600] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:00:34,415 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:00:34,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 02:00:34,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773619345] [2021-11-07 02:00:34,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:00:34,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:00:34,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:00:34,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:00:34,437 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 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 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:00:34,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:00:34,493 INFO L93 Difference]: Finished difference Result 22 states and 28 transitions. [2021-11-07 02:00:34,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:00:34,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-07 02:00:34,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:00:34,502 INFO L225 Difference]: With dead ends: 22 [2021-11-07 02:00:34,503 INFO L226 Difference]: Without dead ends: 10 [2021-11-07 02:00:34,505 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:00:34,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-11-07 02:00:34,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-11-07 02:00:34,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:00:34,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2021-11-07 02:00:34,534 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 6 [2021-11-07 02:00:34,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:00:34,535 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2021-11-07 02:00:34,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:00:34,535 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2021-11-07 02:00:34,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 02:00:34,536 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:00:34,536 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:00:34,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 02:00:34,537 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:00:34,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:00:34,554 INFO L85 PathProgramCache]: Analyzing trace with hash 508339981, now seen corresponding path program 1 times [2021-11-07 02:00:34,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:00:34,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139066610] [2021-11-07 02:00:34,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:00:34,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:00:34,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:00:34,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:00:34,790 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:00:34,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139066610] [2021-11-07 02:00:34,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139066610] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 02:00:34,791 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380232736] [2021-11-07 02:00:34,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:00:34,791 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:00:34,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c93d7a-f8ef-4f6d-80d4-9a0942b8d546/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:00:34,798 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c93d7a-f8ef-4f6d-80d4-9a0942b8d546/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:00:34,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c93d7a-f8ef-4f6d-80d4-9a0942b8d546/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 02:00:34,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:00:34,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 02:00:34,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:00:35,338 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:00:35,338 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:00:35,583 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:00:35,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [380232736] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:00:35,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [665855036] [2021-11-07 02:00:35,618 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-07 02:00:35,618 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 02:00:35,624 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 02:00:35,633 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 02:00:35,633 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 02:00:35,673 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:00:35,675 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:00:35,676 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:00:35,677 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-07 02:00:35,678 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:00:35,679 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:00:35,679 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 02:00:35,683 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-11-07 02:00:35,710 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_8|], 10=[|v_#valid_9|]} [2021-11-07 02:00:35,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:35,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-07 02:00:35,733 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:00:35,734 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-07 02:00:35,735 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:00:35,739 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-07 02:00:35,739 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:00:35,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:00:35,805 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:00:35,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:35,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:35,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:35,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:35,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-07 02:00:35,838 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:00:35,842 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:00:35,843 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:00:35,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:00:35,844 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:00:35,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:00:35,881 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:00:35,883 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:00:35,886 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-11-07 02:00:35,887 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:00:35,888 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:121, output treesize:106 [2021-11-07 02:00:35,904 INFO L180 QuantifierPusher]: treesize reduction 8, result has 94.2 percent of original size [2021-11-07 02:00:35,916 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.5 percent of original size 118 [2021-11-07 02:00:35,935 INFO L180 QuantifierPusher]: treesize reduction 11, result has 93.3 percent of original size [2021-11-07 02:00:35,940 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-07 02:00:35,953 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:00:35,960 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:00:35,963 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:00:35,971 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:00:35,972 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:00:35,976 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-07 02:00:35,978 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-07 02:00:35,993 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.7 percent of original size 125 [2021-11-07 02:00:36,015 INFO L180 QuantifierPusher]: treesize reduction 11, result has 93.3 percent of original size [2021-11-07 02:00:36,025 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-07 02:00:36,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:00:36,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:00:36,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:00:36,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:00:36,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:00:36,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:00:36,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:00:36,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:00:36,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:00:36,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:00:36,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:00:36,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:00:36,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:00:36,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:00:36,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:00:36,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:00:36,200 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 02:00:37,040 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 02:00:37,040 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 02:00:37,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-07 02:00:37,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863238417] [2021-11-07 02:00:37,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 02:00:37,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:00:37,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 02:00:37,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-11-07 02:00:37,044 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:00:37,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:00:37,265 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2021-11-07 02:00:37,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 02:00:37,266 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 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 8 [2021-11-07 02:00:37,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:00:37,267 INFO L225 Difference]: With dead ends: 29 [2021-11-07 02:00:37,267 INFO L226 Difference]: Without dead ends: 27 [2021-11-07 02:00:37,268 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=160, Invalid=440, Unknown=0, NotChecked=0, Total=600 [2021-11-07 02:00:37,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-07 02:00:37,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 15. [2021-11-07 02:00:37,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:00:37,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-11-07 02:00:37,273 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 8 [2021-11-07 02:00:37,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:00:37,274 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-11-07 02:00:37,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:00:37,274 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2021-11-07 02:00:37,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-07 02:00:37,275 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:00:37,275 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:00:37,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c93d7a-f8ef-4f6d-80d4-9a0942b8d546/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:00:37,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c93d7a-f8ef-4f6d-80d4-9a0942b8d546/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:00:37,476 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:00:37,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:00:37,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1438727539, now seen corresponding path program 1 times [2021-11-07 02:00:37,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:00:37,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522688375] [2021-11-07 02:00:37,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:00:37,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:00:37,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:00:37,568 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:00:37,568 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:00:37,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522688375] [2021-11-07 02:00:37,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522688375] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 02:00:37,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435214052] [2021-11-07 02:00:37,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:00:37,570 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:00:37,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c93d7a-f8ef-4f6d-80d4-9a0942b8d546/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:00:37,574 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c93d7a-f8ef-4f6d-80d4-9a0942b8d546/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:00:37,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c93d7a-f8ef-4f6d-80d4-9a0942b8d546/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 02:00:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:00:37,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:00:37,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:00:37,719 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 02:00:37,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:00:37,767 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 02:00:37,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [435214052] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:00:37,768 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2021-11-07 02:00:37,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6] total 9 [2021-11-07 02:00:37,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011913161] [2021-11-07 02:00:37,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 02:00:37,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:00:37,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 02:00:37,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 02:00:37,770 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:00:37,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:00:37,797 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2021-11-07 02:00:37,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:00:37,798 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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 14 [2021-11-07 02:00:37,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:00:37,798 INFO L225 Difference]: With dead ends: 16 [2021-11-07 02:00:37,799 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 02:00:37,799 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 02:00:37,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 02:00:37,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 02:00:37,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:00:37,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 02:00:37,800 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-11-07 02:00:37,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:00:37,801 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 02:00:37,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:00:37,801 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 02:00:37,801 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 02:00:37,804 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:00:37,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c93d7a-f8ef-4f6d-80d4-9a0942b8d546/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:00:38,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c93d7a-f8ef-4f6d-80d4-9a0942b8d546/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-11-07 02:00:38,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-07 02:00:38,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:00:38,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:00:38,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:00:38,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:00:38,092 INFO L857 garLoopResultBuilder]: For program point L31(line 31) no Hoare annotation was computed. [2021-11-07 02:00:38,093 INFO L857 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2021-11-07 02:00:38,093 INFO L853 garLoopResultBuilder]: At program point L40-2(lines 34 44) the Hoare annotation is: (let ((.cse0 (<= 4000 ULTIMATE.start_main_~c1~0)) (.cse1 (<= 2000 ULTIMATE.start_main_~c2~0)) (.cse2 (<= 10000 ULTIMATE.start_main_~c3~0))) (or (and .cse0 (= ULTIMATE.start_main_~k~0 0) (= ULTIMATE.start_main_~i~0 0) .cse1 .cse2) (and .cse0 (<= ULTIMATE.start_main_~n~0 1) (<= 2000 ULTIMATE.start_main_~k~0) .cse1 .cse2))) [2021-11-07 02:00:38,093 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-07 02:00:38,094 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-11-07 02:00:38,094 INFO L857 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-11-07 02:00:38,094 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-07 02:00:38,096 INFO L853 garLoopResultBuilder]: At program point L46-2(lines 46 50) the Hoare annotation is: (let ((.cse0 (<= 4000 ULTIMATE.start_main_~c1~0)) (.cse1 (<= ULTIMATE.start_main_~n~0 1)) (.cse2 (<= 2000 ULTIMATE.start_main_~c2~0)) (.cse3 (<= 10000 ULTIMATE.start_main_~c3~0))) (or (and (= ULTIMATE.start_main_~i~0 0) (<= ULTIMATE.start_main_~n~0 0) (= ULTIMATE.start_main_~j~0 0)) (and .cse0 .cse1 (< 0 ULTIMATE.start_main_~k~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 1 ULTIMATE.start_main_~j~0) .cse2 .cse3) (and .cse0 .cse1 (<= 2000 ULTIMATE.start_main_~k~0) .cse2 .cse3 (<= 0 ULTIMATE.start_main_~j~0)))) [2021-11-07 02:00:38,096 INFO L860 garLoopResultBuilder]: At program point L51(lines 24 52) the Hoare annotation is: true [2021-11-07 02:00:38,096 INFO L857 garLoopResultBuilder]: For program point L18(lines 18 20) no Hoare annotation was computed. [2021-11-07 02:00:38,097 INFO L853 garLoopResultBuilder]: At program point L18-2(lines 17 22) the Hoare annotation is: (and (<= 4000 ULTIMATE.start_main_~c1~0) (<= ULTIMATE.start_main_~n~0 1) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 2000 ULTIMATE.start_main_~k~0) (<= 2000 ULTIMATE.start_main_~c2~0) (<= 10000 ULTIMATE.start_main_~c3~0) (<= 0 ULTIMATE.start_main_~j~0)) [2021-11-07 02:00:38,100 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-07 02:00:38,101 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 02:00:38,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 02:00:38 BoogieIcfgContainer [2021-11-07 02:00:38,135 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 02:00:38,136 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 02:00:38,136 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 02:00:38,136 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 02:00:38,137 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:00:34" (3/4) ... [2021-11-07 02:00:38,139 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 02:00:38,149 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-11-07 02:00:38,149 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-07 02:00:38,149 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-07 02:00:38,150 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 02:00:38,185 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c93d7a-f8ef-4f6d-80d4-9a0942b8d546/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 02:00:38,185 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 02:00:38,186 INFO L168 Benchmark]: Toolchain (without parser) took 4802.84 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 61.0 MB in the beginning and 42.9 MB in the end (delta: 18.2 MB). Peak memory consumption was 42.2 MB. Max. memory is 16.1 GB. [2021-11-07 02:00:38,187 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 96.5 MB. Free memory was 66.6 MB in the beginning and 66.6 MB in the end (delta: 29.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:00:38,188 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.83 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 60.9 MB in the beginning and 94.7 MB in the end (delta: -33.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 02:00:38,188 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.32 ms. Allocated memory is still 119.5 MB. Free memory was 94.7 MB in the beginning and 93.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:00:38,189 INFO L168 Benchmark]: Boogie Preprocessor took 22.76 ms. Allocated memory is still 119.5 MB. Free memory was 93.3 MB in the beginning and 92.6 MB in the end (delta: 770.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 02:00:38,189 INFO L168 Benchmark]: RCFGBuilder took 386.97 ms. Allocated memory is still 119.5 MB. Free memory was 91.9 MB in the beginning and 80.0 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 02:00:38,190 INFO L168 Benchmark]: TraceAbstraction took 4032.18 ms. Allocated memory is still 119.5 MB. Free memory was 79.3 MB in the beginning and 45.0 MB in the end (delta: 34.4 MB). Peak memory consumption was 36.8 MB. Max. memory is 16.1 GB. [2021-11-07 02:00:38,190 INFO L168 Benchmark]: Witness Printer took 49.81 ms. Allocated memory is still 119.5 MB. Free memory was 45.0 MB in the beginning and 42.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 02:00:38,193 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 96.5 MB. Free memory was 66.6 MB in the beginning and 66.6 MB in the end (delta: 29.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 261.83 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 60.9 MB in the beginning and 94.7 MB in the end (delta: -33.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.32 ms. Allocated memory is still 119.5 MB. Free memory was 94.7 MB in the beginning and 93.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.76 ms. Allocated memory is still 119.5 MB. Free memory was 93.3 MB in the beginning and 92.6 MB in the end (delta: 770.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 386.97 ms. Allocated memory is still 119.5 MB. Free memory was 91.9 MB in the beginning and 80.0 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4032.18 ms. Allocated memory is still 119.5 MB. Free memory was 79.3 MB in the beginning and 45.0 MB in the end (delta: 34.4 MB). Peak memory consumption was 36.8 MB. Max. memory is 16.1 GB. * Witness Printer took 49.81 ms. Allocated memory is still 119.5 MB. Free memory was 45.0 MB in the beginning and 42.9 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.9s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 24 SDtfs, 58 SDslu, 41 SDs, 0 SdLazy, 79 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=2, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 11 NumberOfFragments, 108 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 65 ConstructedInterpolants, 0 QuantifiedInterpolants, 269 SizeOfPredicates, 10 NumberOfNonLiveVariables, 164 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 20/27 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((((4000 <= c1 && n <= 1) && 1 <= cond) && 2000 <= k) && 2000 <= c2) && 10000 <= c3) && 0 <= j - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((((4000 <= c1 && k == 0) && i == 0) && 2000 <= c2) && 10000 <= c3) || ((((4000 <= c1 && n <= 1) && 2000 <= k) && 2000 <= c2) && 10000 <= c3) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: (((i == 0 && n <= 0) && j == 0) || ((((((4000 <= c1 && n <= 1) && 0 < k) && 1 <= cond) && 1 <= j) && 2000 <= c2) && 10000 <= c3)) || (((((4000 <= c1 && n <= 1) && 2000 <= k) && 2000 <= c2) && 10000 <= c3) && 0 <= j) RESULT: Ultimate proved your program to be correct! [2021-11-07 02:00:38,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c93d7a-f8ef-4f6d-80d4-9a0942b8d546/bin/utaipan-UUZaoUuFF8/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 Result: TRUE