./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/jm2006_variant.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_6339ef7c-5ef9-4236-8694-62c7334474f2/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6339ef7c-5ef9-4236-8694-62c7334474f2/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6339ef7c-5ef9-4236-8694-62c7334474f2/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6339ef7c-5ef9-4236-8694-62c7334474f2/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-lit/jm2006_variant.i -s /tmp/vcloud-vcloud-master/worker/run_dir_6339ef7c-5ef9-4236-8694-62c7334474f2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6339ef7c-5ef9-4236-8694-62c7334474f2/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 d9ecf0997a3226968b15d351ec48dae1cc4b70e9 ......................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 09:50:45,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 09:50:45,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 09:50:45,277 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 09:50:45,278 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 09:50:45,279 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 09:50:45,280 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 09:50:45,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 09:50:45,291 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 09:50:45,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 09:50:45,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 09:50:45,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 09:50:45,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 09:50:45,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 09:50:45,295 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 09:50:45,296 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 09:50:45,297 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 09:50:45,298 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 09:50:45,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 09:50:45,301 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 09:50:45,302 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 09:50:45,303 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 09:50:45,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 09:50:45,305 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 09:50:45,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 09:50:45,308 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 09:50:45,308 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 09:50:45,309 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 09:50:45,309 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 09:50:45,310 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 09:50:45,310 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 09:50:45,311 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 09:50:45,311 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 09:50:45,312 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 09:50:45,313 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 09:50:45,313 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 09:50:45,313 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 09:50:45,313 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 09:50:45,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 09:50:45,314 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 09:50:45,315 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 09:50:45,315 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6339ef7c-5ef9-4236-8694-62c7334474f2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 09:50:45,339 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 09:50:45,339 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 09:50:45,340 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 09:50:45,340 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 09:50:45,340 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 09:50:45,340 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 09:50:45,340 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 09:50:45,340 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 09:50:45,341 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 09:50:45,341 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 09:50:45,341 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 09:50:45,341 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 09:50:45,341 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 09:50:45,341 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 09:50:45,342 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 09:50:45,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 09:50:45,342 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 09:50:45,342 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 09:50:45,342 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 09:50:45,342 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 09:50:45,343 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 09:50:45,343 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 09:50:45,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 09:50:45,343 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 09:50:45,343 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 09:50:45,343 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 09:50:45,343 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 09:50:45,343 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 09:50:45,344 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 09:50:45,344 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 09:50:45,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 09:50:45,344 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 09:50:45,344 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 09:50:45,344 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 09:50:45,344 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 09:50:45,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 09:50:45,345 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 09:50:45,345 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 09:50:45,345 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 09:50:45,345 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_6339ef7c-5ef9-4236-8694-62c7334474f2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6339ef7c-5ef9-4236-8694-62c7334474f2/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9ecf0997a3226968b15d351ec48dae1cc4b70e9 [2020-12-09 09:50:45,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 09:50:45,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 09:50:45,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 09:50:45,557 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 09:50:45,558 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 09:50:45,558 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6339ef7c-5ef9-4236-8694-62c7334474f2/bin/utaipan/../../sv-benchmarks/c/loop-lit/jm2006_variant.i [2020-12-09 09:50:45,608 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6339ef7c-5ef9-4236-8694-62c7334474f2/bin/utaipan/data/d23dda0d6/416c806ae72d4b06bf55b0fce3ef30cb/FLAG72c946b7c [2020-12-09 09:50:45,952 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 09:50:45,953 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6339ef7c-5ef9-4236-8694-62c7334474f2/sv-benchmarks/c/loop-lit/jm2006_variant.i [2020-12-09 09:50:45,957 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6339ef7c-5ef9-4236-8694-62c7334474f2/bin/utaipan/data/d23dda0d6/416c806ae72d4b06bf55b0fce3ef30cb/FLAG72c946b7c [2020-12-09 09:50:46,385 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6339ef7c-5ef9-4236-8694-62c7334474f2/bin/utaipan/data/d23dda0d6/416c806ae72d4b06bf55b0fce3ef30cb [2020-12-09 09:50:46,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 09:50:46,388 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 09:50:46,390 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 09:50:46,390 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 09:50:46,392 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 09:50:46,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:50:46" (1/1) ... [2020-12-09 09:50:46,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fae45e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:50:46, skipping insertion in model container [2020-12-09 09:50:46,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:50:46" (1/1) ... [2020-12-09 09:50:46,400 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 09:50:46,412 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 09:50:46,509 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_6339ef7c-5ef9-4236-8694-62c7334474f2/sv-benchmarks/c/loop-lit/jm2006_variant.i[895,908] [2020-12-09 09:50:46,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 09:50:46,523 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 09:50:46,531 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_6339ef7c-5ef9-4236-8694-62c7334474f2/sv-benchmarks/c/loop-lit/jm2006_variant.i[895,908] [2020-12-09 09:50:46,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 09:50:46,543 INFO L208 MainTranslator]: Completed translation [2020-12-09 09:50:46,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:50:46 WrapperNode [2020-12-09 09:50:46,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 09:50:46,544 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 09:50:46,544 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 09:50:46,544 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 09:50:46,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:50:46" (1/1) ... [2020-12-09 09:50:46,555 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:50:46" (1/1) ... [2020-12-09 09:50:46,567 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 09:50:46,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 09:50:46,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 09:50:46,568 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 09:50:46,573 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:50:46" (1/1) ... [2020-12-09 09:50:46,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:50:46" (1/1) ... [2020-12-09 09:50:46,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:50:46" (1/1) ... [2020-12-09 09:50:46,575 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:50:46" (1/1) ... [2020-12-09 09:50:46,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:50:46" (1/1) ... [2020-12-09 09:50:46,581 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:50:46" (1/1) ... [2020-12-09 09:50:46,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:50:46" (1/1) ... [2020-12-09 09:50:46,583 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 09:50:46,584 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 09:50:46,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 09:50:46,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 09:50:46,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:50:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6339ef7c-5ef9-4236-8694-62c7334474f2/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 [2020-12-09 09:50:46,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 09:50:46,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 09:50:46,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 09:50:46,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 09:50:46,813 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 09:50:46,813 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-09 09:50:46,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:50:46 BoogieIcfgContainer [2020-12-09 09:50:46,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 09:50:46,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 09:50:46,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 09:50:46,821 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 09:50:46,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 09:50:46" (1/3) ... [2020-12-09 09:50:46,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7567fae1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 09:50:46, skipping insertion in model container [2020-12-09 09:50:46,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:50:46" (2/3) ... [2020-12-09 09:50:46,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7567fae1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 09:50:46, skipping insertion in model container [2020-12-09 09:50:46,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:50:46" (3/3) ... [2020-12-09 09:50:46,824 INFO L111 eAbstractionObserver]: Analyzing ICFG jm2006_variant.i [2020-12-09 09:50:46,838 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 09:50:46,841 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 09:50:46,851 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 09:50:46,868 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 09:50:46,868 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 09:50:46,868 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 09:50:46,868 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 09:50:46,868 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 09:50:46,868 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 09:50:46,868 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 09:50:46,868 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 09:50:46,877 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-12-09 09:50:46,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 09:50:46,881 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:50:46,881 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:50:46,881 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:50:46,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:50:46,885 INFO L82 PathProgramCache]: Analyzing trace with hash -1056283585, now seen corresponding path program 1 times [2020-12-09 09:50:46,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:50:46,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527410430] [2020-12-09 09:50:46,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:50:46,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:50:47,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:50:47,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527410430] [2020-12-09 09:50:47,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:50:47,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 09:50:47,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312782536] [2020-12-09 09:50:47,081 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 09:50:47,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:50:47,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 09:50:47,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 09:50:47,096 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 5 states. [2020-12-09 09:50:47,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:50:47,211 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2020-12-09 09:50:47,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 09:50:47,212 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-12-09 09:50:47,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:50:47,220 INFO L225 Difference]: With dead ends: 28 [2020-12-09 09:50:47,220 INFO L226 Difference]: Without dead ends: 9 [2020-12-09 09:50:47,223 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-09 09:50:47,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-12-09 09:50:47,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-12-09 09:50:47,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-12-09 09:50:47,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-12-09 09:50:47,248 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2020-12-09 09:50:47,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:50:47,249 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-12-09 09:50:47,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 09:50:47,249 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-12-09 09:50:47,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 09:50:47,249 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:50:47,249 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:50:47,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 09:50:47,250 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:50:47,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:50:47,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1591528594, now seen corresponding path program 1 times [2020-12-09 09:50:47,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:50:47,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24409337] [2020-12-09 09:50:47,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:50:47,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:50:47,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:50:47,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24409337] [2020-12-09 09:50:47,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955811423] [2020-12-09 09:50:47,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6339ef7c-5ef9-4236-8694-62c7334474f2/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 [2020-12-09 09:50:47,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:50:47,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 23 conjunts are in the unsatisfiable core [2020-12-09 09:50:47,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:50:47,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:50:47,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 09:50:47,478 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:50:47,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [943600777] [2020-12-09 09:50:47,495 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2020-12-09 09:50:47,495 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 09:50:47,498 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 09:50:47,502 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 09:50:47,502 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 09:50:47,725 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 09:50:48,211 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 09:50:48,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-09 09:50:48,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2020-12-09 09:50:48,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739471998] [2020-12-09 09:50:48,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-09 09:50:48,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:50:48,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-09 09:50:48,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2020-12-09 09:50:48,213 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 13 states. [2020-12-09 09:50:48,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:50:48,420 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2020-12-09 09:50:48,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-09 09:50:48,420 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 8 [2020-12-09 09:50:48,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:50:48,420 INFO L225 Difference]: With dead ends: 19 [2020-12-09 09:50:48,420 INFO L226 Difference]: Without dead ends: 12 [2020-12-09 09:50:48,422 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=125, Invalid=475, Unknown=0, NotChecked=0, Total=600 [2020-12-09 09:50:48,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-12-09 09:50:48,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-12-09 09:50:48,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-12-09 09:50:48,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-12-09 09:50:48,424 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2020-12-09 09:50:48,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:50:48,424 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-12-09 09:50:48,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-09 09:50:48,424 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-12-09 09:50:48,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 09:50:48,424 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:50:48,424 INFO L422 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:50:48,625 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-09 09:50:48,626 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:50:48,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:50:48,628 INFO L82 PathProgramCache]: Analyzing trace with hash -695508737, now seen corresponding path program 2 times [2020-12-09 09:50:48,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:50:48,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496115940] [2020-12-09 09:50:48,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:50:48,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:50:48,742 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-09 09:50:48,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496115940] [2020-12-09 09:50:48,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522904936] [2020-12-09 09:50:48,743 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6339ef7c-5ef9-4236-8694-62c7334474f2/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 [2020-12-09 09:50:48,768 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-12-09 09:50:48,769 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-09 09:50:48,770 WARN L261 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 41 conjunts are in the unsatisfiable core [2020-12-09 09:50:48,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:50:48,866 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:50:48,866 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 09:50:48,981 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:50:48,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1404821224] [2020-12-09 09:50:48,983 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2020-12-09 09:50:48,983 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 09:50:48,983 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 09:50:48,983 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 09:50:48,983 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 09:50:49,134 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 09:50:49,621 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 09:50:49,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-09 09:50:49,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 20 [2020-12-09 09:50:49,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666998855] [2020-12-09 09:50:49,622 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-12-09 09:50:49,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:50:49,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-12-09 09:50:49,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=525, Unknown=0, NotChecked=0, Total=650 [2020-12-09 09:50:49,623 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 20 states. [2020-12-09 09:50:49,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:50:49,765 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2020-12-09 09:50:49,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-09 09:50:49,765 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 11 [2020-12-09 09:50:49,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:50:49,765 INFO L225 Difference]: With dead ends: 15 [2020-12-09 09:50:49,765 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 09:50:49,766 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=182, Invalid=688, Unknown=0, NotChecked=0, Total=870 [2020-12-09 09:50:49,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 09:50:49,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 09:50:49,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 09:50:49,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 09:50:49,766 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-12-09 09:50:49,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:50:49,767 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 09:50:49,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-12-09 09:50:49,767 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 09:50:49,767 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 09:50:49,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-12-09 09:50:49,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 09:50:50,041 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 09:50:50,041 INFO L258 CegarLoopResult]: At program point L33-2(lines 33 37) the Hoare annotation is: (let ((.cse1 (+ ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~j~0)) (.cse0 (+ ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~i~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2020-12-09 09:50:50,041 INFO L262 CegarLoopResult]: For program point L33-3(lines 24 42) no Hoare annotation was computed. [2020-12-09 09:50:50,041 INFO L262 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-12-09 09:50:50,041 INFO L262 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-12-09 09:50:50,041 INFO L265 CegarLoopResult]: At program point L38(lines 38 40) the Hoare annotation is: true [2020-12-09 09:50:50,041 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 09:50:50,041 INFO L262 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-12-09 09:50:50,042 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2020-12-09 09:50:50,042 INFO L262 CegarLoopResult]: For program point L18(lines 18 20) no Hoare annotation was computed. [2020-12-09 09:50:50,042 INFO L265 CegarLoopResult]: At program point L41(lines 24 42) the Hoare annotation is: true [2020-12-09 09:50:50,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 09:50:50 BoogieIcfgContainer [2020-12-09 09:50:50,053 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 09:50:50,053 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 09:50:50,053 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 09:50:50,053 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 09:50:50,053 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:50:46" (3/4) ... [2020-12-09 09:50:50,056 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 09:50:50,061 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-09 09:50:50,061 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-09 09:50:50,061 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 09:50:50,061 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 09:50:50,090 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6339ef7c-5ef9-4236-8694-62c7334474f2/bin/utaipan/witness.graphml [2020-12-09 09:50:50,091 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 09:50:50,091 INFO L168 Benchmark]: Toolchain (without parser) took 3703.03 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 59.5 MB in the beginning and 40.6 MB in the end (delta: 18.9 MB). Peak memory consumption was 42.2 MB. Max. memory is 16.1 GB. [2020-12-09 09:50:50,092 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 98.6 MB. Free memory was 75.6 MB in the beginning and 75.4 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 09:50:50,092 INFO L168 Benchmark]: CACSL2BoogieTranslator took 153.95 ms. Allocated memory is still 98.6 MB. Free memory was 59.2 MB in the beginning and 75.5 MB in the end (delta: -16.3 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. [2020-12-09 09:50:50,092 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.04 ms. Allocated memory is still 98.6 MB. Free memory was 75.1 MB in the beginning and 73.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 09:50:50,093 INFO L168 Benchmark]: Boogie Preprocessor took 15.98 ms. Allocated memory is still 98.6 MB. Free memory was 73.8 MB in the beginning and 72.9 MB in the end (delta: 837.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 09:50:50,093 INFO L168 Benchmark]: RCFGBuilder took 231.37 ms. Allocated memory is still 98.6 MB. Free memory was 72.9 MB in the beginning and 72.0 MB in the end (delta: 948.8 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 09:50:50,094 INFO L168 Benchmark]: TraceAbstraction took 3235.39 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 71.6 MB in the beginning and 42.7 MB in the end (delta: 28.9 MB). Peak memory consumption was 52.2 MB. Max. memory is 16.1 GB. [2020-12-09 09:50:50,094 INFO L168 Benchmark]: Witness Printer took 37.72 ms. Allocated memory is still 119.5 MB. Free memory was 42.7 MB in the beginning and 40.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 09:50:50,096 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 98.6 MB. Free memory was 75.6 MB in the beginning and 75.4 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 153.95 ms. Allocated memory is still 98.6 MB. Free memory was 59.2 MB in the beginning and 75.5 MB in the end (delta: -16.3 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 23.04 ms. Allocated memory is still 98.6 MB. Free memory was 75.1 MB in the beginning and 73.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 15.98 ms. Allocated memory is still 98.6 MB. Free memory was 73.8 MB in the beginning and 72.9 MB in the end (delta: 837.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 231.37 ms. Allocated memory is still 98.6 MB. Free memory was 72.9 MB in the beginning and 72.0 MB in the end (delta: 948.8 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3235.39 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 71.6 MB in the beginning and 42.7 MB in the end (delta: 28.9 MB). Peak memory consumption was 52.2 MB. Max. memory is 16.1 GB. * Witness Printer took 37.72 ms. Allocated memory is still 119.5 MB. Free memory was 42.7 MB in the beginning and 40.6 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: 19]: 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: 33]: Loop Invariant Derived loop invariant: z + y + i <= x + j && x + j <= z + y + i - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 3, TraceHistogramMax: 4, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 20 SDtfs, 61 SDslu, 42 SDs, 0 SdLazy, 169 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 16 NumberOfFragments, 19 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 159 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 4664 SizeOfPredicates, 16 NumberOfNonLiveVariables, 133 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 3/33 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...