./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark37_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5c01ccd2-9665-418f-8a65-07027187c9d8/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5c01ccd2-9665-418f-8a65-07027187c9d8/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5c01ccd2-9665-418f-8a65-07027187c9d8/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5c01ccd2-9665-418f-8a65-07027187c9d8/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark37_conjunctive.i -s /tmp/vcloud-vcloud-master/worker/run_dir_5c01ccd2-9665-418f-8a65-07027187c9d8/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5c01ccd2-9665-418f-8a65-07027187c9d8/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8a833a1b9e7471f6481f3d298fb7b827e4068305 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 12:39:53,352 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 12:39:53,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 12:39:53,442 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 12:39:53,443 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 12:39:53,449 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 12:39:53,452 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 12:39:53,456 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 12:39:53,458 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 12:39:53,466 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 12:39:53,467 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 12:39:53,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 12:39:53,470 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 12:39:53,472 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 12:39:53,474 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 12:39:53,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 12:39:53,478 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 12:39:53,482 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 12:39:53,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 12:39:53,490 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 12:39:53,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 12:39:53,496 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 12:39:53,498 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 12:39:53,499 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 12:39:53,502 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 12:39:53,503 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 12:39:53,503 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 12:39:53,504 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 12:39:53,505 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 12:39:53,506 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 12:39:53,506 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 12:39:53,507 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 12:39:53,508 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 12:39:53,509 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 12:39:53,510 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 12:39:53,511 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 12:39:53,511 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 12:39:53,512 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 12:39:53,512 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 12:39:53,513 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 12:39:53,514 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 12:39:53,515 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5c01ccd2-9665-418f-8a65-07027187c9d8/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf [2020-12-03 12:39:53,538 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 12:39:53,539 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 12:39:53,540 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 12:39:53,540 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-03 12:39:53,540 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-03 12:39:53,540 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-03 12:39:53,541 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-03 12:39:53,541 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-03 12:39:53,541 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-03 12:39:53,541 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-03 12:39:53,541 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-03 12:39:53,542 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-03 12:39:53,542 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-03 12:39:53,542 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-03 12:39:53,542 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-03 12:39:53,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 12:39:53,543 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 12:39:53,544 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-03 12:39:53,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 12:39:53,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 12:39:53,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 12:39:53,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 12:39:53,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 12:39:53,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 12:39:53,545 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-03 12:39:53,545 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 12:39:53,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 12:39:53,546 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 12:39:53,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 12:39:53,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 12:39:53,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 12:39:53,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:39:53,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 12:39:53,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 12:39:53,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 12:39:53,548 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-03 12:39:53,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 12:39:53,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 12:39:53,548 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 12:39:53,549 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-03 12:39:53,549 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_5c01ccd2-9665-418f-8a65-07027187c9d8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5c01ccd2-9665-418f-8a65-07027187c9d8/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a833a1b9e7471f6481f3d298fb7b827e4068305 [2020-12-03 12:39:53,808 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 12:39:53,838 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 12:39:53,841 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 12:39:53,842 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 12:39:53,843 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 12:39:53,844 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5c01ccd2-9665-418f-8a65-07027187c9d8/bin/utaipan/../../sv-benchmarks/c/loop-zilu/benchmark37_conjunctive.i [2020-12-03 12:39:53,923 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5c01ccd2-9665-418f-8a65-07027187c9d8/bin/utaipan/data/c671b8fdc/fd9342fe02b04efd88f867b15a1b20f6/FLAGe6f16da2c [2020-12-03 12:39:54,479 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 12:39:54,480 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5c01ccd2-9665-418f-8a65-07027187c9d8/sv-benchmarks/c/loop-zilu/benchmark37_conjunctive.i [2020-12-03 12:39:54,492 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5c01ccd2-9665-418f-8a65-07027187c9d8/bin/utaipan/data/c671b8fdc/fd9342fe02b04efd88f867b15a1b20f6/FLAGe6f16da2c [2020-12-03 12:39:54,846 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5c01ccd2-9665-418f-8a65-07027187c9d8/bin/utaipan/data/c671b8fdc/fd9342fe02b04efd88f867b15a1b20f6 [2020-12-03 12:39:54,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 12:39:54,851 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 12:39:54,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 12:39:54,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 12:39:54,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 12:39:54,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:39:54" (1/1) ... [2020-12-03 12:39:54,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@392d9d00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:39:54, skipping insertion in model container [2020-12-03 12:39:54,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:39:54" (1/1) ... [2020-12-03 12:39:54,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 12:39:54,893 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 12:39:55,083 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_5c01ccd2-9665-418f-8a65-07027187c9d8/sv-benchmarks/c/loop-zilu/benchmark37_conjunctive.i[873,886] [2020-12-03 12:39:55,091 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:39:55,101 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 12:39:55,115 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_5c01ccd2-9665-418f-8a65-07027187c9d8/sv-benchmarks/c/loop-zilu/benchmark37_conjunctive.i[873,886] [2020-12-03 12:39:55,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:39:55,132 INFO L208 MainTranslator]: Completed translation [2020-12-03 12:39:55,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:39:55 WrapperNode [2020-12-03 12:39:55,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 12:39:55,134 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 12:39:55,136 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 12:39:55,136 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 12:39:55,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:39:55" (1/1) ... [2020-12-03 12:39:55,154 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:39:55" (1/1) ... [2020-12-03 12:39:55,174 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 12:39:55,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 12:39:55,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 12:39:55,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 12:39:55,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:39:55" (1/1) ... [2020-12-03 12:39:55,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:39:55" (1/1) ... [2020-12-03 12:39:55,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:39:55" (1/1) ... [2020-12-03 12:39:55,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:39:55" (1/1) ... [2020-12-03 12:39:55,204 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:39:55" (1/1) ... [2020-12-03 12:39:55,210 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:39:55" (1/1) ... [2020-12-03 12:39:55,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:39:55" (1/1) ... [2020-12-03 12:39:55,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 12:39:55,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 12:39:55,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 12:39:55,223 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 12:39:55,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:39:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5c01ccd2-9665-418f-8a65-07027187c9d8/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 12:39:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-03 12:39:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 12:39:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 12:39:55,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 12:39:55,728 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 12:39:55,728 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-03 12:39:55,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:39:55 BoogieIcfgContainer [2020-12-03 12:39:55,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 12:39:55,732 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-03 12:39:55,733 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-03 12:39:55,737 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-03 12:39:55,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 12:39:54" (1/3) ... [2020-12-03 12:39:55,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46d9b63d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:39:55, skipping insertion in model container [2020-12-03 12:39:55,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:39:55" (2/3) ... [2020-12-03 12:39:55,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46d9b63d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:39:55, skipping insertion in model container [2020-12-03 12:39:55,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:39:55" (3/3) ... [2020-12-03 12:39:55,754 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark37_conjunctive.i [2020-12-03 12:39:55,767 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-03 12:39:55,771 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-12-03 12:39:55,783 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-03 12:39:55,807 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-03 12:39:55,808 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-03 12:39:55,808 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-03 12:39:55,808 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-03 12:39:55,808 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-03 12:39:55,808 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-03 12:39:55,809 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-03 12:39:55,809 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-03 12:39:55,834 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-12-03 12:39:55,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-03 12:39:55,839 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:39:55,840 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-03 12:39:55,840 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-03 12:39:55,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:39:55,846 INFO L82 PathProgramCache]: Analyzing trace with hash 2092610, now seen corresponding path program 1 times [2020-12-03 12:39:55,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:39:55,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816449435] [2020-12-03 12:39:55,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:39:55,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:39:56,037 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 12:39:56,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816449435] [2020-12-03 12:39:56,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:39:56,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-03 12:39:56,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099002773] [2020-12-03 12:39:56,047 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:39:56,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:39:56,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:39:56,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:39:56,067 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 4 states. [2020-12-03 12:39:56,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:39:56,166 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2020-12-03 12:39:56,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-03 12:39:56,168 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-12-03 12:39:56,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:39:56,181 INFO L225 Difference]: With dead ends: 13 [2020-12-03 12:39:56,181 INFO L226 Difference]: Without dead ends: 10 [2020-12-03 12:39:56,185 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:39:56,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-12-03 12:39:56,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-12-03 12:39:56,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-12-03 12:39:56,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-12-03 12:39:56,219 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 4 [2020-12-03 12:39:56,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:39:56,220 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2020-12-03 12:39:56,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:39:56,220 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-12-03 12:39:56,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-03 12:39:56,221 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:39:56,221 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-03 12:39:56,221 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-03 12:39:56,222 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-03 12:39:56,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:39:56,226 INFO L82 PathProgramCache]: Analyzing trace with hash 64870960, now seen corresponding path program 1 times [2020-12-03 12:39:56,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:39:56,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898652626] [2020-12-03 12:39:56,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:39:56,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:39:56,301 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 12:39:56,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898652626] [2020-12-03 12:39:56,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:39:56,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-03 12:39:56,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179567871] [2020-12-03 12:39:56,305 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:39:56,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:39:56,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:39:56,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:39:56,310 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 3 states. [2020-12-03 12:39:56,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:39:56,337 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2020-12-03 12:39:56,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:39:56,338 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-03 12:39:56,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:39:56,340 INFO L225 Difference]: With dead ends: 10 [2020-12-03 12:39:56,340 INFO L226 Difference]: Without dead ends: 9 [2020-12-03 12:39:56,341 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 12:39:56,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-12-03 12:39:56,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-12-03 12:39:56,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-12-03 12:39:56,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-12-03 12:39:56,346 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2020-12-03 12:39:56,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:39:56,346 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-12-03 12:39:56,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:39:56,347 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-12-03 12:39:56,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-03 12:39:56,348 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:39:56,348 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-03 12:39:56,348 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-03 12:39:56,349 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-03 12:39:56,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:39:56,352 INFO L82 PathProgramCache]: Analyzing trace with hash 2010999812, now seen corresponding path program 1 times [2020-12-03 12:39:56,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:39:56,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946500666] [2020-12-03 12:39:56,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:39:56,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:39:56,424 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 12:39:56,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946500666] [2020-12-03 12:39:56,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:39:56,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-03 12:39:56,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251261394] [2020-12-03 12:39:56,427 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:39:56,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:39:56,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:39:56,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:39:56,436 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 4 states. [2020-12-03 12:39:56,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:39:56,472 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2020-12-03 12:39:56,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-03 12:39:56,473 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-12-03 12:39:56,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:39:56,474 INFO L225 Difference]: With dead ends: 9 [2020-12-03 12:39:56,474 INFO L226 Difference]: Without dead ends: 8 [2020-12-03 12:39:56,475 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:39:56,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-12-03 12:39:56,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-12-03 12:39:56,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-03 12:39:56,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2020-12-03 12:39:56,480 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2020-12-03 12:39:56,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:39:56,480 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2020-12-03 12:39:56,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:39:56,480 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2020-12-03 12:39:56,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-03 12:39:56,481 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:39:56,481 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:39:56,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-03 12:39:56,482 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-03 12:39:56,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:39:56,484 INFO L82 PathProgramCache]: Analyzing trace with hash -2083515214, now seen corresponding path program 1 times [2020-12-03 12:39:56,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:39:56,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21619969] [2020-12-03 12:39:56,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:39:56,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:39:56,574 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 12:39:56,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21619969] [2020-12-03 12:39:56,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:39:56,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 12:39:56,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391046774] [2020-12-03 12:39:56,576 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:39:56,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:39:56,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:39:56,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:39:56,578 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 5 states. [2020-12-03 12:39:56,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:39:56,638 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2020-12-03 12:39:56,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-03 12:39:56,639 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-12-03 12:39:56,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:39:56,642 INFO L225 Difference]: With dead ends: 14 [2020-12-03 12:39:56,642 INFO L226 Difference]: Without dead ends: 13 [2020-12-03 12:39:56,643 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-03 12:39:56,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-12-03 12:39:56,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-12-03 12:39:56,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-12-03 12:39:56,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-12-03 12:39:56,648 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2020-12-03 12:39:56,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:39:56,649 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-12-03 12:39:56,649 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:39:56,649 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-12-03 12:39:56,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-03 12:39:56,649 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:39:56,650 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1] [2020-12-03 12:39:56,650 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-03 12:39:56,650 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-03 12:39:56,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:39:56,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1317414976, now seen corresponding path program 1 times [2020-12-03 12:39:56,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:39:56,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998082818] [2020-12-03 12:39:56,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:39:56,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:39:56,771 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:39:56,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998082818] [2020-12-03 12:39:56,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012156012] [2020-12-03 12:39:56,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5c01ccd2-9665-418f-8a65-07027187c9d8/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 12:39:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:39:56,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-03 12:39:56,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 12:39:56,981 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-03 12:39:56,981 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-03 12:39:57,155 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:39:57,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2074828110] [2020-12-03 12:39:57,177 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2020-12-03 12:39:57,177 INFO L166 IcfgInterpreter]: Building call graph [2020-12-03 12:39:57,181 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-03 12:39:57,185 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-03 12:39:57,186 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-03 12:39:57,727 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-03 12:39:57,885 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-12-03 12:39:58,227 WARN L197 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 45 [2020-12-03 12:39:58,545 WARN L197 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 53 [2020-12-03 12:39:58,734 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2020-12-03 12:39:58,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-12-03 12:39:58,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 6, 7] total 18 [2020-12-03 12:39:58,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651316091] [2020-12-03 12:39:58,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-03 12:39:58,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:39:58,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-03 12:39:58,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2020-12-03 12:39:58,870 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 6 states. [2020-12-03 12:39:58,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:39:58,917 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2020-12-03 12:39:58,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-03 12:39:58,918 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-12-03 12:39:58,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:39:58,919 INFO L225 Difference]: With dead ends: 13 [2020-12-03 12:39:58,919 INFO L226 Difference]: Without dead ends: 0 [2020-12-03 12:39:58,920 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 6 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2020-12-03 12:39:58,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-03 12:39:58,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-03 12:39:58,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-03 12:39:58,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-03 12:39:58,921 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-12-03 12:39:58,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:39:58,921 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-03 12:39:58,922 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-03 12:39:58,926 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-03 12:39:58,926 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-03 12:39:59,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-03 12:39:59,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-03 12:39:59,237 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-12-03 12:39:59,238 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-03 12:39:59,238 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2020-12-03 12:39:59,238 INFO L262 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-12-03 12:39:59,238 INFO L262 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2020-12-03 12:39:59,240 INFO L258 CegarLoopResult]: At program point L23-2(lines 23 26) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |#t~string0.base|))) (and (= |#t~string1.offset| 0) (= (select |#length| |#t~string1.base|) 26) (= |#NULL.base| 0) (= (select .cse0 |#t~string0.offset|) 48) (= (select .cse0 (+ |#t~string0.offset| 1)) 0) (= (select |#valid| 0) 0) (= 2 (select |#length| |#t~string0.base|)) (<= ULTIMATE.start_main_~y~0 2147483647) (< |#StackHeapBarrier| |#t~string0.base|) (= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~x~0) (<= 0 ULTIMATE.start_main_~x~0) (= (select |#valid| |#t~string0.base|) 1) (< 0 |#StackHeapBarrier|) (< |#StackHeapBarrier| |#t~string1.base|) (= |#NULL.offset| 0) (= (select |#valid| |#t~string1.base|) 1) (= |#t~string0.offset| 0))) [2020-12-03 12:39:59,240 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-12-03 12:39:59,240 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2020-12-03 12:39:59,241 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-03 12:39:59,241 INFO L258 CegarLoopResult]: At program point L28(lines 19 29) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2020-12-03 12:39:59,241 INFO L262 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-12-03 12:39:59,243 INFO L262 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-12-03 12:39:59,243 INFO L262 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-12-03 12:39:59,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 12:39:59 BoogieIcfgContainer [2020-12-03 12:39:59,286 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-03 12:39:59,286 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 12:39:59,287 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 12:39:59,287 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 12:39:59,287 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:39:55" (3/4) ... [2020-12-03 12:39:59,293 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-03 12:39:59,300 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-12-03 12:39:59,300 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-03 12:39:59,301 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-03 12:39:59,301 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-03 12:39:59,344 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5c01ccd2-9665-418f-8a65-07027187c9d8/bin/utaipan/witness.graphml [2020-12-03 12:39:59,347 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 12:39:59,348 INFO L168 Benchmark]: Toolchain (without parser) took 4497.04 ms. Allocated memory was 134.2 MB in the beginning and 161.5 MB in the end (delta: 27.3 MB). Free memory was 108.5 MB in the beginning and 64.0 MB in the end (delta: 44.4 MB). Peak memory consumption was 72.7 MB. Max. memory is 16.1 GB. [2020-12-03 12:39:59,349 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 88.1 MB. Free memory is still 47.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:39:59,349 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.35 ms. Allocated memory is still 134.2 MB. Free memory was 108.2 MB in the beginning and 111.2 MB in the end (delta: -3.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-03 12:39:59,351 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.94 ms. Allocated memory is still 134.2 MB. Free memory was 111.2 MB in the beginning and 109.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:39:59,352 INFO L168 Benchmark]: Boogie Preprocessor took 45.29 ms. Allocated memory is still 134.2 MB. Free memory was 109.9 MB in the beginning and 108.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:39:59,353 INFO L168 Benchmark]: RCFGBuilder took 509.06 ms. Allocated memory is still 134.2 MB. Free memory was 108.8 MB in the beginning and 93.9 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-03 12:39:59,354 INFO L168 Benchmark]: TraceAbstraction took 3553.61 ms. Allocated memory was 134.2 MB in the beginning and 161.5 MB in the end (delta: 27.3 MB). Free memory was 93.4 MB in the beginning and 66.1 MB in the end (delta: 27.3 MB). Peak memory consumption was 57.7 MB. Max. memory is 16.1 GB. [2020-12-03 12:39:59,355 INFO L168 Benchmark]: Witness Printer took 60.62 ms. Allocated memory is still 161.5 MB. Free memory was 66.1 MB in the beginning and 64.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:39:59,357 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 88.1 MB. Free memory is still 47.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 279.35 ms. Allocated memory is still 134.2 MB. Free memory was 108.2 MB in the beginning and 111.2 MB in the end (delta: -3.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.94 ms. Allocated memory is still 134.2 MB. Free memory was 111.2 MB in the beginning and 109.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 45.29 ms. Allocated memory is still 134.2 MB. Free memory was 109.9 MB in the beginning and 108.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 509.06 ms. Allocated memory is still 134.2 MB. Free memory was 108.8 MB in the beginning and 93.9 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3553.61 ms. Allocated memory was 134.2 MB in the beginning and 161.5 MB in the end (delta: 27.3 MB). Free memory was 93.4 MB in the beginning and 66.1 MB in the end (delta: 27.3 MB). Peak memory consumption was 57.7 MB. Max. memory is 16.1 GB. * Witness Printer took 60.62 ms. Allocated memory is still 161.5 MB. Free memory was 66.1 MB in the beginning and 64.0 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: - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ((((((((((((((("benchmark37_conjunctive.c" == 0 && unknown-#length-unknown["benchmark37_conjunctive.c"] == 26) && #NULL == 0) && unknown-#memory_int-unknown["0"]["0"] == 48) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && \valid[0] == 0) && 2 == unknown-#length-unknown["0"]) && y <= 2147483647) && unknown-#StackHeapBarrier-unknown < "0") && y == x) && 0 <= x) && \valid["0"] == 1) && 0 < unknown-#StackHeapBarrier-unknown) && unknown-#StackHeapBarrier-unknown < "benchmark37_conjunctive.c") && #NULL == 0) && \valid["benchmark37_conjunctive.c"] == 1) && "0" == 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: x <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.3s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 21 SDtfs, 26 SDslu, 20 SDs, 0 SdLazy, 59 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 19 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 75 HoareAnnotationTreeSize, 2 FomulaSimplifications, 79 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 1781 SizeOfPredicates, 6 NumberOfNonLiveVariables, 56 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 1/15 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]: 551, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 8, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 15, TOOLS_POST_TIME[ms]: 204, 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: 15, TOOLS_QUANTIFIERELIM_TIME[ms]: 196, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 153, FLUID_QUERY_TIME[ms]: 3, FLUID_QUERIES: 27, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 3, DOMAIN_JOIN_TIME[ms]: 283, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME[ms]: 0, DOMAIN_ISSUBSETEQ_APPLICATIONS: 1, DOMAIN_ISSUBSETEQ_TIME[ms]: 5, DOMAIN_ISBOTTOM_APPLICATIONS: 8, DOMAIN_ISBOTTOM_TIME[ms]: 21, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 35, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 35, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 1, 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]: 2, PATH_EXPR_TIME[ms]: 2, REGEX_TO_DAG_TIME[ms]: 2, DAG_COMPRESSION_TIME[ms]: 7, DAG_COMPRESSION_PROCESSED_NODES: 80, DAG_COMPRESSION_RETAINED_NODES: 29, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...