./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_worker_vcloud-master_on_vcloud-master/run_dir_5e55f478-2d59-4411-b086-89735ee53127/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e55f478-2d59-4411-b086-89735ee53127/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e55f478-2d59-4411-b086-89735ee53127/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e55f478-2d59-4411-b086-89735ee53127/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-lit/jm2006_variant.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e55f478-2d59-4411-b086-89735ee53127/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e55f478-2d59-4411-b086-89735ee53127/bin/utaipan-WLngWcDbfI --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 [2021-10-11 02:26:32,299 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:26:32,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:26:32,347 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:26:32,348 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:26:32,349 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:26:32,356 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:26:32,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:26:32,364 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:26:32,367 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:26:32,368 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:26:32,371 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:26:32,372 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:26:32,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:26:32,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:26:32,385 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:26:32,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:26:32,391 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:26:32,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:26:32,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:26:32,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:26:32,407 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:26:32,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:26:32,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:26:32,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:26:32,423 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:26:32,423 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:26:32,426 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:26:32,427 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:26:32,428 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:26:32,429 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:26:32,430 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:26:32,432 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:26:32,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:26:32,436 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:26:32,436 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:26:32,438 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:26:32,438 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:26:32,438 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:26:32,439 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:26:32,440 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:26:32,443 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e55f478-2d59-4411-b086-89735ee53127/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:26:32,488 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:26:32,488 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:26:32,489 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:26:32,489 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:26:32,490 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:26:32,490 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:26:32,490 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:26:32,490 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:26:32,491 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:26:32,491 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:26:32,491 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:26:32,491 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:26:32,492 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:26:32,492 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:26:32,492 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:26:32,493 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:26:32,493 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:26:32,493 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:26:32,494 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:26:32,494 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:26:32,494 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:26:32,494 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:26:32,495 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:26:32,495 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:26:32,495 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:26:32,495 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:26:32,496 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:26:32,496 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:26:32,496 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:26:32,497 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:26:32,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:26:32,497 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:26:32,497 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:26:32,498 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:26:32,498 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:26:32,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:26:32,498 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:26:32,499 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:26:32,499 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:26:32,499 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e55f478-2d59-4411-b086-89735ee53127/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e55f478-2d59-4411-b086-89735ee53127/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9ecf0997a3226968b15d351ec48dae1cc4b70e9 [2021-10-11 02:26:32,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:26:32,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:26:32,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:26:32,788 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:26:32,789 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:26:32,790 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e55f478-2d59-4411-b086-89735ee53127/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/loop-lit/jm2006_variant.i [2021-10-11 02:26:32,882 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e55f478-2d59-4411-b086-89735ee53127/bin/utaipan-WLngWcDbfI/data/1766187cc/ab2327c9a2694bd790bfdaf4cde97ba8/FLAG86635b622 [2021-10-11 02:26:33,381 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:26:33,381 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e55f478-2d59-4411-b086-89735ee53127/sv-benchmarks/c/loop-lit/jm2006_variant.i [2021-10-11 02:26:33,387 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e55f478-2d59-4411-b086-89735ee53127/bin/utaipan-WLngWcDbfI/data/1766187cc/ab2327c9a2694bd790bfdaf4cde97ba8/FLAG86635b622 [2021-10-11 02:26:33,780 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e55f478-2d59-4411-b086-89735ee53127/bin/utaipan-WLngWcDbfI/data/1766187cc/ab2327c9a2694bd790bfdaf4cde97ba8 [2021-10-11 02:26:33,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:26:33,784 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:26:33,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:33,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:26:33,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:26:33,801 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:33" (1/1) ... [2021-10-11 02:26:33,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53c64dd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:33, skipping insertion in model container [2021-10-11 02:26:33,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:33" (1/1) ... [2021-10-11 02:26:33,822 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:26:33,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:26:33,993 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e55f478-2d59-4411-b086-89735ee53127/sv-benchmarks/c/loop-lit/jm2006_variant.i[895,908] [2021-10-11 02:26:34,014 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:34,026 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:26:34,038 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e55f478-2d59-4411-b086-89735ee53127/sv-benchmarks/c/loop-lit/jm2006_variant.i[895,908] [2021-10-11 02:26:34,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:34,054 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:26:34,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:34 WrapperNode [2021-10-11 02:26:34,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:34,056 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:26:34,056 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:26:34,056 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:26:34,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:34" (1/1) ... [2021-10-11 02:26:34,070 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:34" (1/1) ... [2021-10-11 02:26:34,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:26:34,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:26:34,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:26:34,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:26:34,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:34" (1/1) ... [2021-10-11 02:26:34,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:34" (1/1) ... [2021-10-11 02:26:34,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:34" (1/1) ... [2021-10-11 02:26:34,096 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:34" (1/1) ... [2021-10-11 02:26:34,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:34" (1/1) ... [2021-10-11 02:26:34,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:34" (1/1) ... [2021-10-11 02:26:34,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:34" (1/1) ... [2021-10-11 02:26:34,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:26:34,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:26:34,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:26:34,108 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:26:34,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:34" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e55f478-2d59-4411-b086-89735ee53127/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:26:34,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:26:34,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:26:34,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:26:34,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:26:34,406 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:26:34,406 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 02:26:34,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:34 BoogieIcfgContainer [2021-10-11 02:26:34,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:26:34,410 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:26:34,410 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:26:34,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:26:34,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:26:33" (1/3) ... [2021-10-11 02:26:34,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ec6022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:26:34, skipping insertion in model container [2021-10-11 02:26:34,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:34" (2/3) ... [2021-10-11 02:26:34,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ec6022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:26:34, skipping insertion in model container [2021-10-11 02:26:34,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:34" (3/3) ... [2021-10-11 02:26:34,417 INFO L111 eAbstractionObserver]: Analyzing ICFG jm2006_variant.i [2021-10-11 02:26:34,431 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:26:34,435 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:26:34,446 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:26:34,469 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:26:34,469 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:26:34,469 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:26:34,469 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:26:34,470 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:26:34,470 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:26:34,470 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:26:34,470 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:26:34,483 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2021-10-11 02:26:34,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:26:34,487 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:34,488 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:34,488 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:34,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:34,494 INFO L82 PathProgramCache]: Analyzing trace with hash -1056283585, now seen corresponding path program 1 times [2021-10-11 02:26:34,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:34,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592078351] [2021-10-11 02:26:34,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:34,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:34,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:34,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592078351] [2021-10-11 02:26:34,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:34,862 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:26:34,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685672059] [2021-10-11 02:26:34,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:26:34,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:26:34,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:26:34,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:26:34,901 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 5 states. [2021-10-11 02:26:35,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:35,066 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2021-10-11 02:26:35,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:26:35,068 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2021-10-11 02:26:35,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:35,076 INFO L225 Difference]: With dead ends: 28 [2021-10-11 02:26:35,076 INFO L226 Difference]: Without dead ends: 9 [2021-10-11 02:26:35,079 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:26:35,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-10-11 02:26:35,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-10-11 02:26:35,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-11 02:26:35,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-10-11 02:26:35,110 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2021-10-11 02:26:35,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:35,110 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-10-11 02:26:35,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:26:35,111 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-10-11 02:26:35,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:26:35,111 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:35,111 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:35,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:26:35,112 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:35,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:35,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1591528594, now seen corresponding path program 1 times [2021-10-11 02:26:35,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:35,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648220753] [2021-10-11 02:26:35,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:35,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:35,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:35,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648220753] [2021-10-11 02:26:35,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819818911] [2021-10-11 02:26:35,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e55f478-2d59-4411-b086-89735ee53127/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:26:35,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:35,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-11 02:26:35,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:35,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:35,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:26:35,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:35,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2047787944] [2021-10-11 02:26:35,561 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-10-11 02:26:35,561 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:26:35,567 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:26:35,573 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:26:35,573 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:26:36,014 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:26:36,149 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2021-10-11 02:26:36,763 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2021-10-11 02:26:36,766 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:26:36,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-11 02:26:36,766 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2021-10-11 02:26:36,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589645169] [2021-10-11 02:26:36,768 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-10-11 02:26:36,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:26:36,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-11 02:26:36,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2021-10-11 02:26:36,770 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 13 states. [2021-10-11 02:26:37,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:37,224 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2021-10-11 02:26:37,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-11 02:26:37,225 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 8 [2021-10-11 02:26:37,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:37,226 INFO L225 Difference]: With dead ends: 19 [2021-10-11 02:26:37,226 INFO L226 Difference]: Without dead ends: 12 [2021-10-11 02:26:37,228 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=125, Invalid=475, Unknown=0, NotChecked=0, Total=600 [2021-10-11 02:26:37,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-10-11 02:26:37,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-10-11 02:26:37,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-10-11 02:26:37,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2021-10-11 02:26:37,231 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2021-10-11 02:26:37,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:37,231 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2021-10-11 02:26:37,231 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-10-11 02:26:37,231 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2021-10-11 02:26:37,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:26:37,232 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:37,232 INFO L422 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:37,446 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-11 02:26:37,446 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:37,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:37,447 INFO L82 PathProgramCache]: Analyzing trace with hash -695508737, now seen corresponding path program 2 times [2021-10-11 02:26:37,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:37,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528754786] [2021-10-11 02:26:37,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:37,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:37,570 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-11 02:26:37,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528754786] [2021-10-11 02:26:37,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846721573] [2021-10-11 02:26:37,572 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e55f478-2d59-4411-b086-89735ee53127/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:26:37,622 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-11 02:26:37,623 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-11 02:26:37,624 WARN L261 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-11 02:26:37,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:37,779 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:37,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:26:37,986 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:37,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [613045603] [2021-10-11 02:26:37,990 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-10-11 02:26:37,990 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:26:37,991 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:26:37,992 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:26:37,992 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:26:38,209 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:26:38,341 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2021-10-11 02:26:38,478 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-10-11 02:26:38,627 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2021-10-11 02:26:39,008 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2021-10-11 02:26:39,009 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:26:39,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-11 02:26:39,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 20 [2021-10-11 02:26:39,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307866472] [2021-10-11 02:26:39,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-10-11 02:26:39,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:26:39,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-11 02:26:39,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=525, Unknown=0, NotChecked=0, Total=650 [2021-10-11 02:26:39,014 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 20 states. [2021-10-11 02:26:39,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:39,246 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2021-10-11 02:26:39,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-11 02:26:39,247 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 11 [2021-10-11 02:26:39,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:39,247 INFO L225 Difference]: With dead ends: 15 [2021-10-11 02:26:39,247 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:26:39,248 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=182, Invalid=688, Unknown=0, NotChecked=0, Total=870 [2021-10-11 02:26:39,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:26:39,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:26:39,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:26:39,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:26:39,250 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-10-11 02:26:39,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:39,251 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:26:39,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2021-10-11 02:26:39,251 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:26:39,251 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:26:39,479 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-11 02:26:39,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:26:39,543 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:26:39,544 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))) [2021-10-11 02:26:39,544 INFO L262 CegarLoopResult]: For program point L33-3(lines 24 42) no Hoare annotation was computed. [2021-10-11 02:26:39,544 INFO L262 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2021-10-11 02:26:39,544 INFO L262 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2021-10-11 02:26:39,546 INFO L265 CegarLoopResult]: At program point L38(lines 38 40) the Hoare annotation is: true [2021-10-11 02:26:39,546 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:26:39,546 INFO L262 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2021-10-11 02:26:39,546 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-11 02:26:39,546 INFO L262 CegarLoopResult]: For program point L18(lines 18 20) no Hoare annotation was computed. [2021-10-11 02:26:39,546 INFO L265 CegarLoopResult]: At program point L41(lines 24 42) the Hoare annotation is: true [2021-10-11 02:26:39,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:26:39 BoogieIcfgContainer [2021-10-11 02:26:39,567 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:26:39,568 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:26:39,568 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:26:39,569 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:26:39,570 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:34" (3/4) ... [2021-10-11 02:26:39,573 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:26:39,582 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-11 02:26:39,583 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-11 02:26:39,583 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:26:39,583 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:26:39,637 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e55f478-2d59-4411-b086-89735ee53127/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:26:39,637 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:26:39,639 INFO L168 Benchmark]: Toolchain (without parser) took 5853.50 ms. Allocated memory was 102.8 MB in the beginning and 151.0 MB in the end (delta: 48.2 MB). Free memory was 69.9 MB in the beginning and 107.4 MB in the end (delta: -37.5 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:39,644 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 102.8 MB. Free memory was 59.0 MB in the beginning and 59.0 MB in the end (delta: 50.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:26:39,645 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.28 ms. Allocated memory is still 102.8 MB. Free memory was 69.7 MB in the beginning and 78.0 MB in the end (delta: -8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:39,645 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.78 ms. Allocated memory is still 102.8 MB. Free memory was 78.0 MB in the beginning and 76.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:26:39,646 INFO L168 Benchmark]: Boogie Preprocessor took 21.06 ms. Allocated memory is still 102.8 MB. Free memory was 76.6 MB in the beginning and 75.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:39,646 INFO L168 Benchmark]: RCFGBuilder took 300.65 ms. Allocated memory is still 102.8 MB. Free memory was 75.5 MB in the beginning and 62.3 MB in the end (delta: 13.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:39,647 INFO L168 Benchmark]: TraceAbstraction took 5157.56 ms. Allocated memory was 102.8 MB in the beginning and 151.0 MB in the end (delta: 48.2 MB). Free memory was 61.6 MB in the beginning and 109.4 MB in the end (delta: -47.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:39,647 INFO L168 Benchmark]: Witness Printer took 69.09 ms. Allocated memory is still 151.0 MB. Free memory was 109.4 MB in the beginning and 107.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:39,650 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 102.8 MB. Free memory was 59.0 MB in the beginning and 59.0 MB in the end (delta: 50.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 259.28 ms. Allocated memory is still 102.8 MB. Free memory was 69.7 MB in the beginning and 78.0 MB in the end (delta: -8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.78 ms. Allocated memory is still 102.8 MB. Free memory was 78.0 MB in the beginning and 76.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.06 ms. Allocated memory is still 102.8 MB. Free memory was 76.6 MB in the beginning and 75.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 300.65 ms. Allocated memory is still 102.8 MB. Free memory was 75.5 MB in the beginning and 62.3 MB in the end (delta: 13.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5157.56 ms. Allocated memory was 102.8 MB in the beginning and 151.0 MB in the end (delta: 48.2 MB). Free memory was 61.6 MB in the beginning and 109.4 MB in the end (delta: -47.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 16.1 GB. * Witness Printer took 69.09 ms. Allocated memory is still 151.0 MB. Free memory was 109.4 MB in the beginning and 107.4 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: 5.0s, OverallIterations: 3, TraceHistogramMax: 4, AutomataDifference: 0.9s, 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, 2.6s 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, 0.1s SatisfiabilityAnalysisTime, 1.0s 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...