./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_320f6819-f54d-49db-8a75-5bb384a7c4af/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_320f6819-f54d-49db-8a75-5bb384a7c4af/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_320f6819-f54d-49db-8a75-5bb384a7c4af/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_320f6819-f54d-49db-8a75-5bb384a7c4af/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i -s /tmp/vcloud-vcloud-master/worker/run_dir_320f6819-f54d-49db-8a75-5bb384a7c4af/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_320f6819-f54d-49db-8a75-5bb384a7c4af/bin/utaipan --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 3a501c55d63fd9a2de7fb7a25d7fd900352e0181 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-03 12:40:21,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 12:40:21,837 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 12:40:21,871 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 12:40:21,872 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 12:40:21,873 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 12:40:21,875 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 12:40:21,896 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 12:40:21,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 12:40:21,900 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 12:40:21,916 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 12:40:21,918 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 12:40:21,919 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 12:40:21,920 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 12:40:21,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 12:40:21,935 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 12:40:21,936 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 12:40:21,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 12:40:21,944 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 12:40:21,954 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 12:40:21,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 12:40:21,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 12:40:21,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 12:40:21,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 12:40:21,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 12:40:21,965 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 12:40:21,966 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 12:40:21,967 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 12:40:21,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 12:40:21,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 12:40:21,970 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 12:40:21,971 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 12:40:21,972 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 12:40:21,973 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 12:40:21,974 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 12:40:21,975 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 12:40:21,976 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 12:40:21,976 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 12:40:21,976 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 12:40:21,978 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 12:40:21,978 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 12:40:21,980 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_320f6819-f54d-49db-8a75-5bb384a7c4af/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-03 12:40:22,005 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 12:40:22,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 12:40:22,006 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 12:40:22,007 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-03 12:40:22,007 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-03 12:40:22,007 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-03 12:40:22,008 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-03 12:40:22,008 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-03 12:40:22,008 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-03 12:40:22,009 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-03 12:40:22,009 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-03 12:40:22,009 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-03 12:40:22,009 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-03 12:40:22,010 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-03 12:40:22,011 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-03 12:40:22,011 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 12:40:22,012 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 12:40:22,012 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 12:40:22,012 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 12:40:22,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 12:40:22,013 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 12:40:22,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 12:40:22,013 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 12:40:22,014 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-03 12:40:22,014 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 12:40:22,014 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 12:40:22,014 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 12:40:22,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 12:40:22,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 12:40:22,017 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 12:40:22,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:40:22,018 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 12:40:22,018 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 12:40:22,019 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 12:40:22,019 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-03 12:40:22,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 12:40:22,020 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 12:40:22,021 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 12:40:22,021 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-03 12:40:22,021 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-vcloud-master/worker/run_dir_320f6819-f54d-49db-8a75-5bb384a7c4af/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_320f6819-f54d-49db-8a75-5bb384a7c4af/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a501c55d63fd9a2de7fb7a25d7fd900352e0181 [2020-12-03 12:40:22,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 12:40:22,322 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 12:40:22,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 12:40:22,326 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 12:40:22,327 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 12:40:22,332 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_320f6819-f54d-49db-8a75-5bb384a7c4af/bin/utaipan/../../sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i [2020-12-03 12:40:22,423 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_320f6819-f54d-49db-8a75-5bb384a7c4af/bin/utaipan/data/7660087c4/d5939b5419444bf1ba8d9e2ae5e84f19/FLAG298278f0e [2020-12-03 12:40:23,076 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 12:40:23,077 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_320f6819-f54d-49db-8a75-5bb384a7c4af/sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i [2020-12-03 12:40:23,102 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_320f6819-f54d-49db-8a75-5bb384a7c4af/bin/utaipan/data/7660087c4/d5939b5419444bf1ba8d9e2ae5e84f19/FLAG298278f0e [2020-12-03 12:40:23,350 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_320f6819-f54d-49db-8a75-5bb384a7c4af/bin/utaipan/data/7660087c4/d5939b5419444bf1ba8d9e2ae5e84f19 [2020-12-03 12:40:23,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 12:40:23,354 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 12:40:23,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 12:40:23,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 12:40:23,359 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 12:40:23,360 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:40:23" (1/1) ... [2020-12-03 12:40:23,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@645e4f5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:40:23, skipping insertion in model container [2020-12-03 12:40:23,362 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:40:23" (1/1) ... [2020-12-03 12:40:23,370 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 12:40:23,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 12:40:23,754 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_320f6819-f54d-49db-8a75-5bb384a7c4af/sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i[24473,24486] [2020-12-03 12:40:23,758 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:40:23,766 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 12:40:23,825 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_320f6819-f54d-49db-8a75-5bb384a7c4af/sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i[24473,24486] [2020-12-03 12:40:23,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:40:23,895 INFO L208 MainTranslator]: Completed translation [2020-12-03 12:40:23,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:40:23 WrapperNode [2020-12-03 12:40:23,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 12:40:23,898 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 12:40:23,898 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 12:40:23,898 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 12:40:23,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:40:23" (1/1) ... [2020-12-03 12:40:23,942 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:40:23" (1/1) ... [2020-12-03 12:40:23,978 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 12:40:23,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 12:40:23,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 12:40:23,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 12:40:23,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:40:23" (1/1) ... [2020-12-03 12:40:23,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:40:23" (1/1) ... [2020-12-03 12:40:24,000 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:40:23" (1/1) ... [2020-12-03 12:40:24,001 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:40:23" (1/1) ... [2020-12-03 12:40:24,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:40:23" (1/1) ... [2020-12-03 12:40:24,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:40:23" (1/1) ... [2020-12-03 12:40:24,031 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:40:23" (1/1) ... [2020-12-03 12:40:24,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 12:40:24,035 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 12:40:24,035 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 12:40:24,035 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 12:40:24,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:40:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320f6819-f54d-49db-8a75-5bb384a7c4af/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:40:24,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-03 12:40:24,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-03 12:40:24,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-03 12:40:24,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-03 12:40:24,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 12:40:24,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-03 12:40:24,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-03 12:40:24,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-03 12:40:24,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 12:40:24,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 12:40:24,834 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 12:40:24,834 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2020-12-03 12:40:24,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:40:24 BoogieIcfgContainer [2020-12-03 12:40:24,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 12:40:24,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-03 12:40:24,842 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-03 12:40:24,846 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-03 12:40:24,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 12:40:23" (1/3) ... [2020-12-03 12:40:24,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@680b59a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:40:24, skipping insertion in model container [2020-12-03 12:40:24,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:40:23" (2/3) ... [2020-12-03 12:40:24,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@680b59a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:40:24, skipping insertion in model container [2020-12-03 12:40:24,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:40:24" (3/3) ... [2020-12-03 12:40:24,855 INFO L111 eAbstractionObserver]: Analyzing ICFG dll2n_update_all_reverse.i [2020-12-03 12:40:24,871 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-03 12:40:24,875 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-03 12:40:24,887 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-03 12:40:24,926 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-03 12:40:24,927 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-03 12:40:24,928 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-03 12:40:24,928 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-03 12:40:24,928 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-03 12:40:24,928 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-03 12:40:24,928 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-03 12:40:24,929 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-03 12:40:24,943 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-12-03 12:40:24,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-03 12:40:24,957 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:40:24,958 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:40:24,958 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:40:24,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:40:24,964 INFO L82 PathProgramCache]: Analyzing trace with hash 73302926, now seen corresponding path program 1 times [2020-12-03 12:40:24,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:40:24,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144699203] [2020-12-03 12:40:24,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:40:25,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:40:25,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:40:25,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144699203] [2020-12-03 12:40:25,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:40:25,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-03 12:40:25,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900118280] [2020-12-03 12:40:25,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:40:25,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:40:25,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:40:25,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:40:25,183 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 3 states. [2020-12-03 12:40:25,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:40:25,253 INFO L93 Difference]: Finished difference Result 27 states and 41 transitions. [2020-12-03 12:40:25,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:40:25,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-12-03 12:40:25,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:40:25,274 INFO L225 Difference]: With dead ends: 27 [2020-12-03 12:40:25,275 INFO L226 Difference]: Without dead ends: 12 [2020-12-03 12:40:25,280 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:40:25,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-12-03 12:40:25,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2020-12-03 12:40:25,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-12-03 12:40:25,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 15 transitions. [2020-12-03 12:40:25,315 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 15 transitions. Word has length 7 [2020-12-03 12:40:25,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:40:25,316 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 15 transitions. [2020-12-03 12:40:25,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:40:25,316 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2020-12-03 12:40:25,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-03 12:40:25,317 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:40:25,317 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:40:25,317 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-03 12:40:25,317 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:40:25,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:40:25,320 INFO L82 PathProgramCache]: Analyzing trace with hash -401203551, now seen corresponding path program 1 times [2020-12-03 12:40:25,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:40:25,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859070277] [2020-12-03 12:40:25,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:40:25,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:40:25,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:40:25,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859070277] [2020-12-03 12:40:25,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513171292] [2020-12-03 12:40:25,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320f6819-f54d-49db-8a75-5bb384a7c4af/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-03 12:40:25,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:40:25,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-03 12:40:25,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 12:40:25,638 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:40:25,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-03 12:40:25,674 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:40:25,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [468457842] [2020-12-03 12:40:25,701 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2020-12-03 12:40:25,701 INFO L166 IcfgInterpreter]: Building call graph [2020-12-03 12:40:25,710 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-03 12:40:25,717 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-03 12:40:25,718 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-03 12:40:26,122 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-03 12:40:27,166 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-12-03 12:40:27,378 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-12-03 12:40:27,397 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-03 12:40:27,419 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-03 12:40:28,190 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-03 12:40:28,732 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-03 12:40:28,853 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-03 12:40:29,602 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-03 12:40:29,772 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-12-03 12:40:30,731 WARN L197 SmtUtils]: Spent 922.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 105 [2020-12-03 12:40:31,037 WARN L197 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2020-12-03 12:40:31,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-12-03 12:40:31,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3, 3, 3] total 7 [2020-12-03 12:40:31,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386651277] [2020-12-03 12:40:31,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:40:31,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:40:31,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:40:31,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-12-03 12:40:31,056 INFO L87 Difference]: Start difference. First operand 11 states and 15 transitions. Second operand 5 states. [2020-12-03 12:40:31,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:40:31,200 INFO L93 Difference]: Finished difference Result 18 states and 25 transitions. [2020-12-03 12:40:31,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-03 12:40:31,202 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-12-03 12:40:31,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:40:31,202 INFO L225 Difference]: With dead ends: 18 [2020-12-03 12:40:31,202 INFO L226 Difference]: Without dead ends: 13 [2020-12-03 12:40:31,203 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-12-03 12:40:31,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-12-03 12:40:31,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2020-12-03 12:40:31,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-12-03 12:40:31,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2020-12-03 12:40:31,208 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 16 transitions. Word has length 9 [2020-12-03 12:40:31,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:40:31,209 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 16 transitions. [2020-12-03 12:40:31,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:40:31,209 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2020-12-03 12:40:31,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-03 12:40:31,209 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:40:31,210 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:40:31,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-03 12:40:31,411 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:40:31,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:40:31,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1970333447, now seen corresponding path program 1 times [2020-12-03 12:40:31,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:40:31,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023471291] [2020-12-03 12:40:31,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:40:31,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:40:31,481 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-03 12:40:31,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023471291] [2020-12-03 12:40:31,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26377415] [2020-12-03 12:40:31,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320f6819-f54d-49db-8a75-5bb384a7c4af/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-03 12:40:31,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:40:31,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-03 12:40:31,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 12:40:31,601 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-03 12:40:31,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-03 12:40:31,621 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-03 12:40:31,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1930092100] [2020-12-03 12:40:31,626 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2020-12-03 12:40:31,627 INFO L166 IcfgInterpreter]: Building call graph [2020-12-03 12:40:31,627 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-03 12:40:31,628 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-03 12:40:31,628 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-03 12:40:31,779 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-03 12:40:31,793 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-03 12:40:31,830 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-03 12:40:32,292 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-03 12:40:32,404 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-03 12:40:32,925 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-03 12:40:33,071 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-03 12:40:33,085 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-03 12:40:33,776 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-03 12:40:33,797 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-03 12:40:33,807 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-03 12:40:33,934 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2020-12-03 12:40:34,099 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 42 [2020-12-03 12:40:34,281 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 49 [2020-12-03 12:40:34,577 WARN L197 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2020-12-03 12:40:34,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-12-03 12:40:34,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3, 3, 3] total 8 [2020-12-03 12:40:34,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104936941] [2020-12-03 12:40:34,578 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-03 12:40:34,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:40:34,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-03 12:40:34,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-12-03 12:40:34,580 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. Second operand 6 states. [2020-12-03 12:40:34,798 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2020-12-03 12:40:35,024 WARN L197 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2020-12-03 12:40:35,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:40:35,054 INFO L93 Difference]: Finished difference Result 21 states and 30 transitions. [2020-12-03 12:40:35,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-03 12:40:35,056 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-12-03 12:40:35,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:40:35,056 INFO L225 Difference]: With dead ends: 21 [2020-12-03 12:40:35,056 INFO L226 Difference]: Without dead ends: 14 [2020-12-03 12:40:35,057 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-12-03 12:40:35,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-12-03 12:40:35,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2020-12-03 12:40:35,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-12-03 12:40:35,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2020-12-03 12:40:35,063 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 17 transitions. Word has length 11 [2020-12-03 12:40:35,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:40:35,071 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-12-03 12:40:35,071 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-03 12:40:35,072 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 17 transitions. [2020-12-03 12:40:35,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-03 12:40:35,073 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:40:35,074 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:40:35,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2020-12-03 12:40:35,300 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:40:35,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:40:35,300 INFO L82 PathProgramCache]: Analyzing trace with hash -2106720172, now seen corresponding path program 1 times [2020-12-03 12:40:35,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:40:35,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15059603] [2020-12-03 12:40:35,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:40:35,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:40:35,375 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-03 12:40:35,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15059603] [2020-12-03 12:40:35,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631158791] [2020-12-03 12:40:35,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320f6819-f54d-49db-8a75-5bb384a7c4af/bin/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-03 12:40:35,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:40:35,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-03 12:40:35,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 12:40:35,485 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-03 12:40:35,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-03 12:40:35,501 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-03 12:40:35,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1406073264] [2020-12-03 12:40:35,504 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2020-12-03 12:40:35,504 INFO L166 IcfgInterpreter]: Building call graph [2020-12-03 12:40:35,505 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-03 12:40:35,505 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-03 12:40:35,505 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-03 12:40:35,638 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-03 12:40:36,395 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-03 12:40:36,412 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-03 12:40:37,016 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-03 12:40:37,494 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-03 12:40:37,589 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-03 12:40:38,176 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-03 12:40:38,346 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-03 12:40:38,830 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-03 12:40:38,972 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2020-12-03 12:40:39,737 WARN L197 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 105 [2020-12-03 12:40:40,307 WARN L197 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2020-12-03 12:40:40,533 WARN L197 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2020-12-03 12:40:40,761 WARN L197 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 69 [2020-12-03 12:40:40,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-12-03 12:40:40,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [3, 3, 3] total 9 [2020-12-03 12:40:40,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193591932] [2020-12-03 12:40:40,763 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-03 12:40:40,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:40:40,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-03 12:40:40,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-12-03 12:40:40,764 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. Second operand 7 states. [2020-12-03 12:40:41,355 WARN L197 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-12-03 12:40:41,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:40:41,372 INFO L93 Difference]: Finished difference Result 14 states and 18 transitions. [2020-12-03 12:40:41,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-03 12:40:41,373 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2020-12-03 12:40:41,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:40:41,373 INFO L225 Difference]: With dead ends: 14 [2020-12-03 12:40:41,373 INFO L226 Difference]: Without dead ends: 0 [2020-12-03 12:40:41,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-12-03 12:40:41,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-03 12:40:41,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-03 12:40:41,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-03 12:40:41,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-03 12:40:41,375 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-12-03 12:40:41,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:40:41,375 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-03 12:40:41,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-03 12:40:41,375 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-03 12:40:41,375 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-03 12:40:41,588 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2020-12-03 12:40:41,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-03 12:40:42,020 WARN L197 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2020-12-03 12:40:42,565 WARN L197 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 90 [2020-12-03 12:40:42,968 WARN L197 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 70 [2020-12-03 12:40:43,212 WARN L197 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2020-12-03 12:40:43,215 INFO L262 CegarLoopResult]: For program point L589(lines 589 591) no Hoare annotation was computed. [2020-12-03 12:40:43,215 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-03 12:40:43,215 INFO L265 CegarLoopResult]: At program point L573(line 573) the Hoare annotation is: true [2020-12-03 12:40:43,216 INFO L258 CegarLoopResult]: At program point L633-3(lines 633 638) the Hoare annotation is: (and (<= ULTIMATE.start_dll_create_~new_head~0.offset 0) (<= ULTIMATE.start_dll_update_at_~data 3) (= 2 ULTIMATE.start_main_~len~0) (<= |ULTIMATE.start_dll_update_at_#in~index| 1) (<= ULTIMATE.start_dll_create_~head~0.offset 0) (<= |ULTIMATE.start_dll_create_#res.offset| 0) (<= 0 ULTIMATE.start_main_~s~0.offset) (<= 0 |ULTIMATE.start_dll_update_at_#in~head.offset|) (<= ULTIMATE.start_dll_create_~len 0) (<= ULTIMATE.start_main_~s~0.offset 0) (<= |ULTIMATE.start_dll_update_at_#in~data| 3) (<= 0 ULTIMATE.start_dll_create_~head~0.offset) (= |#NULL.offset| 0) (= |ULTIMATE.start_dll_create_#t~malloc6.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |#t~string0.base|) (= |#t~string1.offset| 0) (<= 0 ULTIMATE.start_dll_create_~new_head~0.offset) (<= ULTIMATE.start_main_~data~0 1) (<= |#NULL.base| 0) (= ULTIMATE.start_main_~len~0 (+ ULTIMATE.start_main_~i~0 1)) (<= 1 ULTIMATE.start_main_~data~0) (<= |ULTIMATE.start_dll_create_#in~data| 1) (<= 1 ULTIMATE.start_dll_create_~data) (<= 2 |ULTIMATE.start_dll_create_#in~len|) (= ULTIMATE.start_dll_update_at_~data (select (select |#memory_int| ULTIMATE.start_dll_update_at_~head.base) ULTIMATE.start_dll_update_at_~head.offset)) (<= 0 |#t~string1.base|) (<= 0 ULTIMATE.start_dll_update_at_~index) (<= 0 |ULTIMATE.start_dll_create_#res.offset|) (<= ULTIMATE.start_main_~new_data~0 3) (<= 1 |ULTIMATE.start_dll_create_#in~data|) (<= ULTIMATE.start_dll_update_at_~index 0) (<= 0 |#NULL.base|) (<= |ULTIMATE.start_dll_create_#in~len| 2) (<= |ULTIMATE.start_dll_update_at_#in~head.offset| 0) (<= ULTIMATE.start_dll_create_~data 1) (= |#t~string0.offset| 0) (<= 0 ULTIMATE.start_dll_create_~len)) [2020-12-03 12:40:43,216 INFO L265 CegarLoopResult]: At program point L642(lines 624 643) the Hoare annotation is: true [2020-12-03 12:40:43,216 INFO L258 CegarLoopResult]: At program point L618-2(lines 618 621) the Hoare annotation is: (and (<= 2 ULTIMATE.start_main_~len~0) (<= 0 |#NULL.offset|) (<= ULTIMATE.start_dll_create_~new_head~0.offset 0) (<= ULTIMATE.start_main_~len~0 2) (<= ULTIMATE.start_dll_update_at_~data 3) (<= |ULTIMATE.start_dll_update_at_#in~index| 1) (<= |#t~string1.offset| 0) (<= ULTIMATE.start_dll_create_~head~0.offset 0) (<= |ULTIMATE.start_dll_create_#res.offset| 0) (<= 0 ULTIMATE.start_main_~s~0.offset) (<= 0 |ULTIMATE.start_dll_update_at_#in~head.offset|) (<= ULTIMATE.start_dll_create_~len 0) (<= ULTIMATE.start_main_~s~0.offset 0) (<= |ULTIMATE.start_dll_update_at_#in~data| 3) (<= 0 ULTIMATE.start_dll_create_~head~0.offset) (= |ULTIMATE.start_dll_create_#t~malloc6.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |#t~string0.base|) (<= 0 ULTIMATE.start_dll_create_~new_head~0.offset) (<= ULTIMATE.start_dll_update_at_~index 1) (<= ULTIMATE.start_main_~data~0 1) (= |#NULL.base| 0) (<= 1 ULTIMATE.start_main_~data~0) (<= |ULTIMATE.start_dll_create_#in~data| 1) (<= 1 ULTIMATE.start_dll_create_~data) (<= 2 |ULTIMATE.start_dll_create_#in~len|) (<= 0 |#t~string1.base|) (<= 0 ULTIMATE.start_dll_update_at_~index) (<= 0 |ULTIMATE.start_dll_create_#res.offset|) (<= ULTIMATE.start_main_~new_data~0 3) (<= 1 |ULTIMATE.start_dll_create_#in~data|) (<= ULTIMATE.start_main_~i~0 1) (<= 0 |#t~string1.offset|) (<= |ULTIMATE.start_dll_create_#in~len| 2) (<= |ULTIMATE.start_dll_update_at_#in~head.offset| 0) (<= ULTIMATE.start_dll_create_~data 1) (= |#t~string0.offset| 0) (<= |#NULL.offset| 0) (<= 0 ULTIMATE.start_dll_create_~len)) [2020-12-03 12:40:43,216 INFO L262 CegarLoopResult]: For program point L635(lines 635 637) no Hoare annotation was computed. [2020-12-03 12:40:43,216 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 641) no Hoare annotation was computed. [2020-12-03 12:40:43,216 INFO L258 CegarLoopResult]: At program point L611-2(lines 611 614) the Hoare annotation is: false [2020-12-03 12:40:43,216 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-03 12:40:43,216 INFO L258 CegarLoopResult]: At program point L636(lines 624 643) the Hoare annotation is: false [2020-12-03 12:40:43,216 INFO L258 CegarLoopResult]: At program point L587-2(lines 587 600) the Hoare annotation is: (let ((.cse0 (= |#t~string1.offset| 0)) (.cse1 (<= 0 |#t~string0.base|)) (.cse2 (<= ULTIMATE.start_main_~data~0 1)) (.cse3 (= |#NULL.base| 0)) (.cse4 (<= 1 ULTIMATE.start_main_~data~0)) (.cse5 (<= |ULTIMATE.start_dll_create_#in~data| 1)) (.cse6 (<= 1 ULTIMATE.start_dll_create_~data)) (.cse7 (<= 2 |ULTIMATE.start_dll_create_#in~len|)) (.cse8 (= 2 ULTIMATE.start_main_~len~0)) (.cse9 (<= 0 |#t~string1.base|)) (.cse10 (<= ULTIMATE.start_dll_create_~head~0.offset 0)) (.cse12 (<= 1 |ULTIMATE.start_dll_create_#in~data|)) (.cse13 (<= 0 ULTIMATE.start_dll_create_~head~0.offset)) (.cse14 (= |#NULL.offset| 0)) (.cse15 (<= |ULTIMATE.start_dll_create_#in~len| 2)) (.cse11 (= |ULTIMATE.start_dll_create_#t~malloc6.offset| 0)) (.cse16 (<= ULTIMATE.start_dll_create_~data 1)) (.cse17 (= |#t~string0.offset| 0)) (.cse18 (<= 0 |#StackHeapBarrier|))) (or (and .cse0 .cse1 (= ULTIMATE.start_dll_create_~len ULTIMATE.start_main_~len~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (or (= ULTIMATE.start_dll_create_~head~0.base 0) .cse11) .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18) (and .cse0 .cse1 (<= 0 ULTIMATE.start_dll_create_~new_head~0.offset) .cse2 .cse3 (<= ULTIMATE.start_dll_create_~new_head~0.offset 0) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (<= ULTIMATE.start_dll_create_~len 2) .cse12 .cse13 .cse14 .cse15 .cse11 .cse16 .cse17 .cse18 (<= 0 ULTIMATE.start_dll_create_~len)))) [2020-12-03 12:40:43,217 INFO L265 CegarLoopResult]: At program point L604-2(lines 604 608) the Hoare annotation is: true [2020-12-03 12:40:43,217 INFO L258 CegarLoopResult]: At program point L629-2(lines 629 632) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_dll_create_~new_head~0.offset 0)) (.cse1 (= 2 ULTIMATE.start_main_~len~0)) (.cse2 (<= 0 ULTIMATE.start_main_~s~0.offset)) (.cse3 (<= ULTIMATE.start_dll_create_~len 0)) (.cse4 (<= ULTIMATE.start_main_~s~0.offset 0)) (.cse5 (= |ULTIMATE.start_dll_create_#t~malloc6.offset| 0)) (.cse6 (<= 0 |#StackHeapBarrier|)) (.cse7 (<= 0 |#t~string0.base|)) (.cse8 (<= 0 ULTIMATE.start_dll_create_~new_head~0.offset)) (.cse9 (<= ULTIMATE.start_main_~data~0 1)) (.cse10 (= |#NULL.base| 0)) (.cse11 (<= 1 ULTIMATE.start_main_~data~0)) (.cse12 (<= |ULTIMATE.start_dll_create_#in~data| 1)) (.cse13 (<= 1 ULTIMATE.start_dll_create_~data)) (.cse14 (<= 2 |ULTIMATE.start_dll_create_#in~len|)) (.cse15 (<= 0 |#t~string1.base|)) (.cse16 (<= 1 |ULTIMATE.start_dll_create_#in~data|)) (.cse17 (<= |ULTIMATE.start_dll_create_#in~len| 2)) (.cse18 (<= ULTIMATE.start_dll_create_~data 1)) (.cse19 (= |#t~string0.offset| 0)) (.cse20 (<= 0 ULTIMATE.start_dll_create_~len))) (or (and .cse0 (<= ULTIMATE.start_dll_update_at_~data 3) .cse1 (<= |ULTIMATE.start_dll_update_at_#in~index| 1) (<= ULTIMATE.start_dll_create_~head~0.offset 0) (<= |ULTIMATE.start_dll_create_#res.offset| 0) .cse2 (<= 0 |ULTIMATE.start_dll_update_at_#in~head.offset|) .cse3 .cse4 (<= |ULTIMATE.start_dll_update_at_#in~data| 3) (<= 0 ULTIMATE.start_dll_create_~head~0.offset) (= |#NULL.offset| 0) .cse5 .cse6 (= |#t~string1.offset| 0) .cse7 .cse8 (<= ULTIMATE.start_main_~i~0 0) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 (= ULTIMATE.start_dll_update_at_~data (select (select |#memory_int| ULTIMATE.start_dll_update_at_~head.base) ULTIMATE.start_dll_update_at_~head.offset)) .cse15 (<= 0 ULTIMATE.start_dll_update_at_~index) (<= 0 |ULTIMATE.start_dll_create_#res.offset|) (<= ULTIMATE.start_main_~new_data~0 3) .cse16 (<= ULTIMATE.start_dll_update_at_~index 0) .cse17 (<= |ULTIMATE.start_dll_update_at_#in~head.offset| 0) .cse18 .cse19 .cse20) (and (<= 0 |#NULL.offset|) .cse0 .cse1 (<= |#t~string1.offset| 0) .cse2 .cse3 .cse4 .cse5 .cse6 (= ULTIMATE.start_dll_create_~head~0.base |ULTIMATE.start_dll_create_#res.base|) .cse7 .cse8 .cse9 .cse10 .cse11 (= ULTIMATE.start_main_~len~0 (+ ULTIMATE.start_main_~i~0 1)) .cse12 .cse13 .cse14 (= ULTIMATE.start_main_~s~0.base |ULTIMATE.start_dll_create_#res.base|) .cse15 (= ULTIMATE.start_main_~s~0.offset |ULTIMATE.start_dll_create_#res.offset|) .cse16 (<= 0 |#t~string1.offset|) .cse17 (= ULTIMATE.start_dll_create_~head~0.offset |ULTIMATE.start_dll_create_#res.offset|) .cse18 .cse19 .cse20 (<= |#NULL.offset| 0)))) [2020-12-03 12:40:43,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 12:40:43 BoogieIcfgContainer [2020-12-03 12:40:43,253 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-03 12:40:43,254 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 12:40:43,254 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 12:40:43,254 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 12:40:43,255 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:40:24" (3/4) ... [2020-12-03 12:40:43,257 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-03 12:40:43,269 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2020-12-03 12:40:43,270 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-12-03 12:40:43,270 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-03 12:40:43,270 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-03 12:40:43,293 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((("dll2n_update_all_reverse.c" == 0 && 0 <= "0") && len == len) && data <= 1) && #NULL == 0) && 1 <= data) && \old(data) <= 1) && 1 <= data) && 2 <= \old(len)) && 2 == len) && 0 <= "dll2n_update_all_reverse.c") && head <= 0) && (head == 0 || malloc(sizeof(struct node)) == 0)) && 1 <= \old(data)) && 0 <= head) && #NULL == 0) && \old(len) <= 2) && data <= 1) && "0" == 0) && 0 <= unknown-#StackHeapBarrier-unknown) || (((((((((((((((((((((("dll2n_update_all_reverse.c" == 0 && 0 <= "0") && 0 <= new_head) && data <= 1) && #NULL == 0) && new_head <= 0) && 1 <= data) && \old(data) <= 1) && 1 <= data) && 2 <= \old(len)) && 2 == len) && 0 <= "dll2n_update_all_reverse.c") && head <= 0) && len <= 2) && 1 <= \old(data)) && 0 <= head) && #NULL == 0) && \old(len) <= 2) && malloc(sizeof(struct node)) == 0) && data <= 1) && "0" == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= len) [2020-12-03 12:40:43,294 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((((((((new_head <= 0 && data <= 3) && 2 == len) && \old(index) <= 1) && head <= 0) && \result <= 0) && 0 <= s) && 0 <= head) && len <= 0) && s <= 0) && \old(data) <= 3) && 0 <= head) && #NULL == 0) && malloc(sizeof(struct node)) == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && "dll2n_update_all_reverse.c" == 0) && 0 <= "0") && 0 <= new_head) && i <= 0) && data <= 1) && #NULL == 0) && 1 <= data) && \old(data) <= 1) && 1 <= data) && 2 <= \old(len)) && data == unknown-#memory_int-unknown[head][head]) && 0 <= "dll2n_update_all_reverse.c") && 0 <= index) && 0 <= \result) && new_data <= 3) && 1 <= \old(data)) && index <= 0) && \old(len) <= 2) && head <= 0) && data <= 1) && "0" == 0) && 0 <= len) || (((((((((((((((((((((((((((((0 <= #NULL && new_head <= 0) && 2 == len) && "dll2n_update_all_reverse.c" <= 0) && 0 <= s) && len <= 0) && s <= 0) && malloc(sizeof(struct node)) == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && head == \result) && 0 <= "0") && 0 <= new_head) && data <= 1) && #NULL == 0) && 1 <= data) && len == i + 1) && \old(data) <= 1) && 1 <= data) && 2 <= \old(len)) && s == \result) && 0 <= "dll2n_update_all_reverse.c") && s == \result) && 1 <= \old(data)) && 0 <= "dll2n_update_all_reverse.c") && \old(len) <= 2) && head == \result) && data <= 1) && "0" == 0) && 0 <= len) && #NULL <= 0) [2020-12-03 12:40:43,294 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((((((((new_head <= 0 && data <= 3) && 2 == len) && \old(index) <= 1) && head <= 0) && \result <= 0) && 0 <= s) && 0 <= head) && len <= 0) && s <= 0) && \old(data) <= 3) && 0 <= head) && #NULL == 0) && malloc(sizeof(struct node)) == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= "0") && "dll2n_update_all_reverse.c" == 0) && 0 <= new_head) && data <= 1) && #NULL <= 0) && len == i + 1) && 1 <= data) && \old(data) <= 1) && 1 <= data) && 2 <= \old(len)) && data == unknown-#memory_int-unknown[head][head]) && 0 <= "dll2n_update_all_reverse.c") && 0 <= index) && 0 <= \result) && new_data <= 3) && 1 <= \old(data)) && index <= 0) && 0 <= #NULL) && \old(len) <= 2) && head <= 0) && data <= 1) && "0" == 0) && 0 <= len [2020-12-03 12:40:43,295 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((((((((((((((2 <= len && 0 <= #NULL) && new_head <= 0) && len <= 2) && data <= 3) && \old(index) <= 1) && "dll2n_update_all_reverse.c" <= 0) && head <= 0) && \result <= 0) && 0 <= s) && 0 <= head) && len <= 0) && s <= 0) && \old(data) <= 3) && 0 <= head) && malloc(sizeof(struct node)) == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= "0") && 0 <= new_head) && index <= 1) && data <= 1) && #NULL == 0) && 1 <= data) && \old(data) <= 1) && 1 <= data) && 2 <= \old(len)) && 0 <= "dll2n_update_all_reverse.c") && 0 <= index) && 0 <= \result) && new_data <= 3) && 1 <= \old(data)) && i <= 1) && 0 <= "dll2n_update_all_reverse.c") && \old(len) <= 2) && head <= 0) && data <= 1) && "0" == 0) && #NULL <= 0) && 0 <= len [2020-12-03 12:40:43,309 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_320f6819-f54d-49db-8a75-5bb384a7c4af/bin/utaipan/witness.graphml [2020-12-03 12:40:43,309 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 12:40:43,310 INFO L168 Benchmark]: Toolchain (without parser) took 19956.21 ms. Allocated memory was 111.1 MB in the beginning and 283.1 MB in the end (delta: 172.0 MB). Free memory was 86.6 MB in the beginning and 165.2 MB in the end (delta: -78.7 MB). Peak memory consumption was 92.0 MB. Max. memory is 16.1 GB. [2020-12-03 12:40:43,310 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 79.7 MB. Free memory is still 44.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:40:43,311 INFO L168 Benchmark]: CACSL2BoogieTranslator took 541.87 ms. Allocated memory is still 111.1 MB. Free memory was 86.2 MB in the beginning and 74.5 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-03 12:40:43,311 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.91 ms. Allocated memory is still 111.1 MB. Free memory was 74.5 MB in the beginning and 72.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:40:43,311 INFO L168 Benchmark]: Boogie Preprocessor took 54.61 ms. Allocated memory is still 111.1 MB. Free memory was 72.6 MB in the beginning and 70.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:40:43,312 INFO L168 Benchmark]: RCFGBuilder took 804.69 ms. Allocated memory is still 111.1 MB. Free memory was 70.7 MB in the beginning and 70.8 MB in the end (delta: -59.6 kB). Peak memory consumption was 23.4 MB. Max. memory is 16.1 GB. [2020-12-03 12:40:43,312 INFO L168 Benchmark]: TraceAbstraction took 18412.56 ms. Allocated memory was 111.1 MB in the beginning and 283.1 MB in the end (delta: 172.0 MB). Free memory was 70.2 MB in the beginning and 168.4 MB in the end (delta: -98.1 MB). Peak memory consumption was 154.3 MB. Max. memory is 16.1 GB. [2020-12-03 12:40:43,312 INFO L168 Benchmark]: Witness Printer took 55.61 ms. Allocated memory is still 283.1 MB. Free memory was 168.4 MB in the beginning and 165.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:40:43,314 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 79.7 MB. Free memory is still 44.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 541.87 ms. Allocated memory is still 111.1 MB. Free memory was 86.2 MB in the beginning and 74.5 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 79.91 ms. Allocated memory is still 111.1 MB. Free memory was 74.5 MB in the beginning and 72.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.61 ms. Allocated memory is still 111.1 MB. Free memory was 72.6 MB in the beginning and 70.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 804.69 ms. Allocated memory is still 111.1 MB. Free memory was 70.7 MB in the beginning and 70.8 MB in the end (delta: -59.6 kB). Peak memory consumption was 23.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 18412.56 ms. Allocated memory was 111.1 MB in the beginning and 283.1 MB in the end (delta: 172.0 MB). Free memory was 70.2 MB in the beginning and 168.4 MB in the end (delta: -98.1 MB). Peak memory consumption was 154.3 MB. Max. memory is 16.1 GB. * Witness Printer took 55.61 ms. Allocated memory is still 283.1 MB. Free memory was 168.4 MB in the beginning and 165.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 641]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: ((((((((((((((((((("dll2n_update_all_reverse.c" == 0 && 0 <= "0") && len == len) && data <= 1) && #NULL == 0) && 1 <= data) && \old(data) <= 1) && 1 <= data) && 2 <= \old(len)) && 2 == len) && 0 <= "dll2n_update_all_reverse.c") && head <= 0) && (head == 0 || malloc(sizeof(struct node)) == 0)) && 1 <= \old(data)) && 0 <= head) && #NULL == 0) && \old(len) <= 2) && data <= 1) && "0" == 0) && 0 <= unknown-#StackHeapBarrier-unknown) || (((((((((((((((((((((("dll2n_update_all_reverse.c" == 0 && 0 <= "0") && 0 <= new_head) && data <= 1) && #NULL == 0) && new_head <= 0) && 1 <= data) && \old(data) <= 1) && 1 <= data) && 2 <= \old(len)) && 2 == len) && 0 <= "dll2n_update_all_reverse.c") && head <= 0) && len <= 2) && 1 <= \old(data)) && 0 <= head) && #NULL == 0) && \old(len) <= 2) && malloc(sizeof(struct node)) == 0) && data <= 1) && "0" == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= len) - InvariantResult [Line: 629]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((new_head <= 0 && data <= 3) && 2 == len) && \old(index) <= 1) && head <= 0) && \result <= 0) && 0 <= s) && 0 <= head) && len <= 0) && s <= 0) && \old(data) <= 3) && 0 <= head) && #NULL == 0) && malloc(sizeof(struct node)) == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && "dll2n_update_all_reverse.c" == 0) && 0 <= "0") && 0 <= new_head) && i <= 0) && data <= 1) && #NULL == 0) && 1 <= data) && \old(data) <= 1) && 1 <= data) && 2 <= \old(len)) && data == unknown-#memory_int-unknown[head][head]) && 0 <= "dll2n_update_all_reverse.c") && 0 <= index) && 0 <= \result) && new_data <= 3) && 1 <= \old(data)) && index <= 0) && \old(len) <= 2) && head <= 0) && data <= 1) && "0" == 0) && 0 <= len) || (((((((((((((((((((((((((((((0 <= #NULL && new_head <= 0) && 2 == len) && "dll2n_update_all_reverse.c" <= 0) && 0 <= s) && len <= 0) && s <= 0) && malloc(sizeof(struct node)) == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && head == \result) && 0 <= "0") && 0 <= new_head) && data <= 1) && #NULL == 0) && 1 <= data) && len == i + 1) && \old(data) <= 1) && 1 <= data) && 2 <= \old(len)) && s == \result) && 0 <= "dll2n_update_all_reverse.c") && s == \result) && 1 <= \old(data)) && 0 <= "dll2n_update_all_reverse.c") && \old(len) <= 2) && head == \result) && data <= 1) && "0" == 0) && 0 <= len) && #NULL <= 0) - InvariantResult [Line: 618]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((2 <= len && 0 <= #NULL) && new_head <= 0) && len <= 2) && data <= 3) && \old(index) <= 1) && "dll2n_update_all_reverse.c" <= 0) && head <= 0) && \result <= 0) && 0 <= s) && 0 <= head) && len <= 0) && s <= 0) && \old(data) <= 3) && 0 <= head) && malloc(sizeof(struct node)) == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= "0") && 0 <= new_head) && index <= 1) && data <= 1) && #NULL == 0) && 1 <= data) && \old(data) <= 1) && 1 <= data) && 2 <= \old(len)) && 0 <= "dll2n_update_all_reverse.c") && 0 <= index) && 0 <= \result) && new_data <= 3) && 1 <= \old(data)) && i <= 1) && 0 <= "dll2n_update_all_reverse.c") && \old(len) <= 2) && head <= 0) && data <= 1) && "0" == 0) && #NULL <= 0) && 0 <= len - InvariantResult [Line: 573]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 624]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 624]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 611]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 633]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((new_head <= 0 && data <= 3) && 2 == len) && \old(index) <= 1) && head <= 0) && \result <= 0) && 0 <= s) && 0 <= head) && len <= 0) && s <= 0) && \old(data) <= 3) && 0 <= head) && #NULL == 0) && malloc(sizeof(struct node)) == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= "0") && "dll2n_update_all_reverse.c" == 0) && 0 <= new_head) && data <= 1) && #NULL <= 0) && len == i + 1) && 1 <= data) && \old(data) <= 1) && 1 <= data) && 2 <= \old(len)) && data == unknown-#memory_int-unknown[head][head]) && 0 <= "dll2n_update_all_reverse.c") && 0 <= index) && 0 <= \result) && new_data <= 3) && 1 <= \old(data)) && index <= 0) && 0 <= #NULL) && \old(len) <= 2) && head <= 0) && data <= 1) && "0" == 0) && 0 <= len - InvariantResult [Line: 604]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 32 SDtfs, 47 SDslu, 26 SDs, 0 SdLazy, 85 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 105 GetRequests, 77 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 5.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 18 NumberOfFragments, 590 HoareAnnotationTreeSize, 9 FomulaSimplifications, 702 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 701 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 1449 SizeOfPredicates, 6 NumberOfNonLiveVariables, 369 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 9/18 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: OVERALL_TIME[ms]: 9409, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 26, DAG_INTERPRETER_EARLY_EXITS: 4, TOOLS_POST_APPLICATIONS: 43, TOOLS_POST_TIME[ms]: 8347, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 41, TOOLS_QUANTIFIERELIM_TIME[ms]: 8323, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 1419, FLUID_QUERY_TIME[ms]: 10, FLUID_QUERIES: 89, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 11, DOMAIN_JOIN_TIME[ms]: 475, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 5, DOMAIN_WIDEN_TIME[ms]: 384, DOMAIN_ISSUBSETEQ_APPLICATIONS: 10, DOMAIN_ISSUBSETEQ_TIME[ms]: 35, DOMAIN_ISBOTTOM_APPLICATIONS: 26, DOMAIN_ISBOTTOM_TIME[ms]: 66, LOOP_SUMMARIZER_APPLICATIONS: 5, LOOP_SUMMARIZER_CACHE_MISSES: 5, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 5527, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 5527, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 10, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 3, PATH_EXPR_TIME[ms]: 5, REGEX_TO_DAG_TIME[ms]: 5, DAG_COMPRESSION_TIME[ms]: 30, DAG_COMPRESSION_PROCESSED_NODES: 491, DAG_COMPRESSION_RETAINED_NODES: 94, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...