./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/array-multidimensional/copy-partial-2-n-u_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_cede6c31-3b62-45b0-9a29-859de68e6ffb/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cede6c31-3b62-45b0-9a29-859de68e6ffb/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cede6c31-3b62-45b0-9a29-859de68e6ffb/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cede6c31-3b62-45b0-9a29-859de68e6ffb/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-multidimensional/copy-partial-2-n-u_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_cede6c31-3b62-45b0-9a29-859de68e6ffb/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cede6c31-3b62-45b0-9a29-859de68e6ffb/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9f1481fb24d8a67a4500a18842012975be1b6f70 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 20:17:35,660 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 20:17:35,662 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 20:17:35,672 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 20:17:35,672 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 20:17:35,673 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 20:17:35,675 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 20:17:35,676 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 20:17:35,678 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 20:17:35,679 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 20:17:35,679 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 20:17:35,680 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 20:17:35,681 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 20:17:35,682 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 20:17:35,683 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 20:17:35,684 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 20:17:35,685 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 20:17:35,687 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 20:17:35,689 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 20:17:35,690 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 20:17:35,691 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 20:17:35,692 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 20:17:35,695 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 20:17:35,695 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 20:17:35,695 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 20:17:35,696 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 20:17:35,697 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 20:17:35,698 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 20:17:35,699 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 20:17:35,700 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 20:17:35,701 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 20:17:35,701 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 20:17:35,701 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 20:17:35,702 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 20:17:35,703 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 20:17:35,703 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 20:17:35,703 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cede6c31-3b62-45b0-9a29-859de68e6ffb/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 20:17:35,718 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 20:17:35,718 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 20:17:35,719 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 20:17:35,719 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 20:17:35,719 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 20:17:35,719 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 20:17:35,720 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 20:17:35,720 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 20:17:35,720 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 20:17:35,720 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 20:17:35,721 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 20:17:35,722 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 20:17:35,722 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 20:17:35,722 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 20:17:35,722 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 20:17:35,723 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 20:17:35,723 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 20:17:35,723 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 20:17:35,723 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 20:17:35,723 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 20:17:35,723 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 20:17:35,724 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 20:17:35,724 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 20:17:35,724 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 20:17:35,724 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 20:17:35,726 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 20:17:35,726 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 20:17:35,726 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 20:17:35,727 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 20:17:35,727 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 20:17:35,727 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 20:17:35,727 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 20:17:35,727 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 20:17:35,727 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 20:17:35,728 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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/working_dir_cede6c31-3b62-45b0-9a29-859de68e6ffb/bin-2019/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(__VERIFIER_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 -> 9f1481fb24d8a67a4500a18842012975be1b6f70 [2018-10-26 20:17:35,759 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 20:17:35,770 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 20:17:35,773 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 20:17:35,774 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 20:17:35,775 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 20:17:35,775 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cede6c31-3b62-45b0-9a29-859de68e6ffb/bin-2019/utaipan/../../sv-benchmarks/c/array-multidimensional/copy-partial-2-n-u_true-unreach-call.i [2018-10-26 20:17:35,836 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cede6c31-3b62-45b0-9a29-859de68e6ffb/bin-2019/utaipan/data/a6ea23279/d74da59fa81643efb09289d8c7d89526/FLAG4dc0d896c [2018-10-26 20:17:36,203 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 20:17:36,206 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cede6c31-3b62-45b0-9a29-859de68e6ffb/sv-benchmarks/c/array-multidimensional/copy-partial-2-n-u_true-unreach-call.i [2018-10-26 20:17:36,213 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cede6c31-3b62-45b0-9a29-859de68e6ffb/bin-2019/utaipan/data/a6ea23279/d74da59fa81643efb09289d8c7d89526/FLAG4dc0d896c [2018-10-26 20:17:36,228 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cede6c31-3b62-45b0-9a29-859de68e6ffb/bin-2019/utaipan/data/a6ea23279/d74da59fa81643efb09289d8c7d89526 [2018-10-26 20:17:36,234 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 20:17:36,236 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 20:17:36,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 20:17:36,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 20:17:36,244 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 20:17:36,245 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:17:36" (1/1) ... [2018-10-26 20:17:36,248 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b2db716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:17:36, skipping insertion in model container [2018-10-26 20:17:36,248 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:17:36" (1/1) ... [2018-10-26 20:17:36,259 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 20:17:36,283 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 20:17:36,457 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 20:17:36,461 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 20:17:36,487 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 20:17:36,510 INFO L193 MainTranslator]: Completed translation [2018-10-26 20:17:36,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:17:36 WrapperNode [2018-10-26 20:17:36,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 20:17:36,511 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 20:17:36,511 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 20:17:36,511 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 20:17:36,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:17:36" (1/1) ... [2018-10-26 20:17:36,535 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:17:36" (1/1) ... [2018-10-26 20:17:36,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 20:17:36,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 20:17:36,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 20:17:36,562 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 20:17:36,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:17:36" (1/1) ... [2018-10-26 20:17:36,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:17:36" (1/1) ... [2018-10-26 20:17:36,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:17:36" (1/1) ... [2018-10-26 20:17:36,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:17:36" (1/1) ... [2018-10-26 20:17:36,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:17:36" (1/1) ... [2018-10-26 20:17:36,603 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:17:36" (1/1) ... [2018-10-26 20:17:36,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:17:36" (1/1) ... [2018-10-26 20:17:36,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 20:17:36,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 20:17:36,614 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 20:17:36,614 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 20:17:36,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:17:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cede6c31-3b62-45b0-9a29-859de68e6ffb/bin-2019/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 [2018-10-26 20:17:36,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 20:17:36,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 20:17:36,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 20:17:36,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 20:17:36,791 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 20:17:36,791 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 20:17:36,791 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-26 20:17:36,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-26 20:17:37,252 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 20:17:37,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:17:37 BoogieIcfgContainer [2018-10-26 20:17:37,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 20:17:37,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 20:17:37,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 20:17:37,258 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 20:17:37,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:17:36" (1/3) ... [2018-10-26 20:17:37,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5104672f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:17:37, skipping insertion in model container [2018-10-26 20:17:37,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:17:36" (2/3) ... [2018-10-26 20:17:37,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5104672f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:17:37, skipping insertion in model container [2018-10-26 20:17:37,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:17:37" (3/3) ... [2018-10-26 20:17:37,262 INFO L112 eAbstractionObserver]: Analyzing ICFG copy-partial-2-n-u_true-unreach-call.i [2018-10-26 20:17:37,273 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 20:17:37,280 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 20:17:37,297 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 20:17:37,329 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 20:17:37,329 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 20:17:37,330 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 20:17:37,330 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 20:17:37,330 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 20:17:37,330 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 20:17:37,330 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 20:17:37,330 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 20:17:37,349 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-10-26 20:17:37,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-26 20:17:37,355 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:17:37,357 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 20:17:37,359 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:17:37,365 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:17:37,365 INFO L82 PathProgramCache]: Analyzing trace with hash -439935169, now seen corresponding path program 1 times [2018-10-26 20:17:37,367 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 20:17:37,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:17:37,410 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:17:37,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:17:37,410 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 20:17:37,441 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-26 20:17:37,442 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-26 20:17:37,442 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cede6c31-3b62-45b0-9a29-859de68e6ffb/bin-2019/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 [2018-10-26 20:17:37,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:17:37,456 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-10-26 20:17:37,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:17:37,505 INFO L190 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2018-10-26 20:17:37,506 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-26 20:17:37,507 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 20:17:37,507 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cede6c31-3b62-45b0-9a29-859de68e6ffb/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 20:17:37,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:17:37,516 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-26 20:17:37,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:17:37,580 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 20:17:37,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:17:37,597 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-26 20:17:37,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:17:37,659 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-10-26 20:17:37,660 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-10-26 20:17:37,660 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 20:17:37,665 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 20:17:37,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 20:17:37,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 20:17:37,677 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2018-10-26 20:17:37,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:17:37,701 INFO L93 Difference]: Finished difference Result 66 states and 91 transitions. [2018-10-26 20:17:37,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 20:17:37,703 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-10-26 20:17:37,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:17:37,710 INFO L225 Difference]: With dead ends: 66 [2018-10-26 20:17:37,710 INFO L226 Difference]: Without dead ends: 31 [2018-10-26 20:17:37,714 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 20:17:37,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-10-26 20:17:37,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-10-26 20:17:37,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-10-26 20:17:37,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2018-10-26 20:17:37,748 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 18 [2018-10-26 20:17:37,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:17:37,748 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2018-10-26 20:17:37,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 20:17:37,748 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2018-10-26 20:17:37,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-26 20:17:37,749 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:17:37,749 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 20:17:37,750 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:17:37,750 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:17:37,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1117238025, now seen corresponding path program 1 times [2018-10-26 20:17:37,750 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 20:17:37,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:17:37,751 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:17:37,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:17:37,752 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 20:17:37,759 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-26 20:17:37,759 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-26 20:17:37,759 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cede6c31-3b62-45b0-9a29-859de68e6ffb/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-26 20:17:37,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:17:37,775 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-10-26 20:17:37,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:17:37,829 INFO L190 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2018-10-26 20:17:37,830 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-26 20:17:37,830 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 20:17:37,830 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cede6c31-3b62-45b0-9a29-859de68e6ffb/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 20:17:37,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:17:37,838 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-26 20:17:37,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:17:37,875 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 20:17:38,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:17:38,018 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-26 20:17:38,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:17:38,095 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-10-26 20:17:38,095 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2018-10-26 20:17:38,095 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 20:17:38,096 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 20:17:38,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 20:17:38,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 20:17:38,097 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand 3 states. [2018-10-26 20:17:38,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:17:38,187 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2018-10-26 20:17:38,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 20:17:38,188 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2018-10-26 20:17:38,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:17:38,189 INFO L225 Difference]: With dead ends: 56 [2018-10-26 20:17:38,189 INFO L226 Difference]: Without dead ends: 36 [2018-10-26 20:17:38,190 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 20:17:38,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-10-26 20:17:38,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 33. [2018-10-26 20:17:38,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-10-26 20:17:38,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2018-10-26 20:17:38,195 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 20 [2018-10-26 20:17:38,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:17:38,195 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2018-10-26 20:17:38,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 20:17:38,196 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2018-10-26 20:17:38,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-26 20:17:38,197 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:17:38,198 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 20:17:38,198 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:17:38,198 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:17:38,198 INFO L82 PathProgramCache]: Analyzing trace with hash -1388242926, now seen corresponding path program 1 times [2018-10-26 20:17:38,198 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 20:17:38,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:17:38,199 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:17:38,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:17:38,200 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 20:17:38,207 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-26 20:17:38,208 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-26 20:17:38,208 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cede6c31-3b62-45b0-9a29-859de68e6ffb/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2018-10-26 20:17:38,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:17:38,223 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-26 20:17:38,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:17:38,275 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 26 with the following transitions: [2018-10-26 20:17:38,276 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [13], [15], [19], [23], [29], [33], [37], [41], [61], [65], [71], [75], [81], [93], [96], [98], [104], [105], [106], [108] [2018-10-26 20:17:38,326 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-26 20:17:38,326 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-26 20:17:38,541 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-26 20:17:38,542 INFO L272 AbstractInterpreter]: Visited 11 different actions 11 times. Never merged. Never widened. Never found a fixpoint. Largest state had 31 variables. [2018-10-26 20:17:38,553 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:17:38,553 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-26 20:17:38,701 INFO L227 lantSequenceWeakener]: Weakened 11 states. On average, predicates are now at 70.05% of their original sizes. [2018-10-26 20:17:38,701 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-26 20:17:38,856 INFO L415 sIntCurrentIteration]: We unified 24 AI predicates to 24 [2018-10-26 20:17:38,863 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-26 20:17:38,864 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 20:17:38,864 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 20:17:38,864 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 20:17:38,864 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 20:17:38,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 20:17:38,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 20:17:38,865 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 4 states. [2018-10-26 20:17:38,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:17:38,966 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2018-10-26 20:17:38,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 20:17:38,966 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-10-26 20:17:38,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:17:38,967 INFO L225 Difference]: With dead ends: 35 [2018-10-26 20:17:38,967 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 20:17:38,968 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 20:17:38,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 20:17:38,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 20:17:38,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 20:17:38,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 20:17:38,971 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-10-26 20:17:38,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:17:38,971 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 20:17:38,971 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 20:17:38,971 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 20:17:38,972 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 20:17:38,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 20:17:39,218 WARN L179 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2018-10-26 20:17:40,696 WARN L179 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 227 DAG size of output: 43 [2018-10-26 20:17:41,334 WARN L179 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 43 [2018-10-26 20:17:41,337 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-26 20:17:41,337 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-26 20:17:41,337 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 20:17:41,337 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 20:17:41,338 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-26 20:17:41,338 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 20:17:41,338 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 20:17:41,338 INFO L421 ceAbstractionStarter]: At program point L60(line 60) the Hoare annotation is: false [2018-10-26 20:17:41,338 INFO L425 ceAbstractionStarter]: For program point L60-1(line 60) no Hoare annotation was computed. [2018-10-26 20:17:41,338 INFO L425 ceAbstractionStarter]: For program point L27-1(lines 27 36) no Hoare annotation was computed. [2018-10-26 20:17:41,338 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 11 67) no Hoare annotation was computed. [2018-10-26 20:17:41,338 INFO L421 ceAbstractionStarter]: At program point L27-3(lines 27 36) the Hoare annotation is: (and (<= 2000 (+ main_~n~0 main_~q~0)) (<= (+ |main_~#B~0.offset| |main_~#A~0.offset|) 0) (not (= |main_~#B~0.base| 0)) (<= (+ main_~j~0 main_~n~0) 1500) (<= main_~s~0 (+ |main_~#B~0.offset| 700)) (<= main_~i~0 0) (<= (+ main_~j~0 main_~s~0) 700) (<= 1000 (+ main_~j~0 main_~m~0)) (<= (* 2 main_~m~0) 2000) (not (= |main_~#A~0.base| 0)) (<= 1000 (+ main_~i~0 main_~m~0)) (<= (+ main_~q~0 200) main_~s~0) (<= 700 (+ main_~s~0 |main_~#A~0.offset|))) [2018-10-26 20:17:41,339 INFO L425 ceAbstractionStarter]: For program point L27-4(lines 27 36) no Hoare annotation was computed. [2018-10-26 20:17:41,339 INFO L425 ceAbstractionStarter]: For program point L56-1(lines 56 65) no Hoare annotation was computed. [2018-10-26 20:17:41,339 INFO L421 ceAbstractionStarter]: At program point L56-3(lines 56 65) the Hoare annotation is: false [2018-10-26 20:17:41,339 INFO L425 ceAbstractionStarter]: For program point L56-4(lines 56 65) no Hoare annotation was computed. [2018-10-26 20:17:41,339 INFO L425 ceAbstractionStarter]: For program point L40-1(lines 40 49) no Hoare annotation was computed. [2018-10-26 20:17:41,339 INFO L421 ceAbstractionStarter]: At program point L40-3(lines 40 49) the Hoare annotation is: false [2018-10-26 20:17:41,339 INFO L425 ceAbstractionStarter]: For program point L40-4(lines 40 49) no Hoare annotation was computed. [2018-10-26 20:17:41,339 INFO L425 ceAbstractionStarter]: For program point L29-1(lines 29 34) no Hoare annotation was computed. [2018-10-26 20:17:41,339 INFO L421 ceAbstractionStarter]: At program point L29-3(lines 29 34) the Hoare annotation is: (and (<= 2000 (+ main_~n~0 main_~q~0)) (not (= |main_~#B~0.base| 0)) (<= (+ main_~j~0 main_~n~0) 1500) (<= |main_~#B~0.offset| main_~i~0) (<= main_~s~0 (+ |main_~#B~0.offset| 700)) (<= (+ main_~j~0 main_~s~0) 700) (<= (* 2 main_~m~0) 2000) (<= main_~s~0 (+ main_~j~0 700)) (<= (+ main_~i~0 |main_~#A~0.offset|) 0) (not (= |main_~#A~0.base| 0)) (<= 1000 (+ main_~i~0 main_~m~0)) (<= (+ main_~q~0 200) main_~s~0) (<= 700 (+ main_~s~0 |main_~#A~0.offset|))) [2018-10-26 20:17:41,340 INFO L425 ceAbstractionStarter]: For program point L29-4(lines 29 34) no Hoare annotation was computed. [2018-10-26 20:17:41,340 INFO L425 ceAbstractionStarter]: For program point L58-1(lines 58 63) no Hoare annotation was computed. [2018-10-26 20:17:41,340 INFO L421 ceAbstractionStarter]: At program point L58-3(lines 58 63) the Hoare annotation is: false [2018-10-26 20:17:41,340 INFO L425 ceAbstractionStarter]: For program point L58-4(lines 58 63) no Hoare annotation was computed. [2018-10-26 20:17:41,340 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 11 67) no Hoare annotation was computed. [2018-10-26 20:17:41,340 INFO L425 ceAbstractionStarter]: For program point L42-1(lines 42 47) no Hoare annotation was computed. [2018-10-26 20:17:41,348 INFO L421 ceAbstractionStarter]: At program point L42-3(lines 42 47) the Hoare annotation is: false [2018-10-26 20:17:41,348 INFO L425 ceAbstractionStarter]: For program point L42-4(lines 42 47) no Hoare annotation was computed. [2018-10-26 20:17:41,349 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 11 67) the Hoare annotation is: true [2018-10-26 20:17:41,349 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-26 20:17:41,349 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-10-26 20:17:41,349 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-10-26 20:17:41,349 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-26 20:17:41,349 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-26 20:17:41,349 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-10-26 20:17:41,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:17:41 BoogieIcfgContainer [2018-10-26 20:17:41,368 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 20:17:41,369 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 20:17:41,370 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 20:17:41,370 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 20:17:41,371 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:17:37" (3/4) ... [2018-10-26 20:17:41,374 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 20:17:41,381 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 20:17:41,386 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 20:17:41,386 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-26 20:17:41,391 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2018-10-26 20:17:41,391 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-10-26 20:17:41,391 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-10-26 20:17:41,460 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_cede6c31-3b62-45b0-9a29-859de68e6ffb/bin-2019/utaipan/witness.graphml [2018-10-26 20:17:41,460 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 20:17:41,461 INFO L168 Benchmark]: Toolchain (without parser) took 5226.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 196.1 MB). Free memory was 954.4 MB in the beginning and 1.1 GB in the end (delta: -143.5 MB). Peak memory consumption was 52.6 MB. Max. memory is 11.5 GB. [2018-10-26 20:17:41,462 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 20:17:41,462 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.96 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-10-26 20:17:41,463 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.22 ms. Allocated memory is still 1.0 GB. Free memory was 943.6 MB in the beginning and 940.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 20:17:41,463 INFO L168 Benchmark]: Boogie Preprocessor took 51.99 ms. Allocated memory is still 1.0 GB. Free memory is still 940.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 20:17:41,463 INFO L168 Benchmark]: RCFGBuilder took 639.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -200.3 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2018-10-26 20:17:41,464 INFO L168 Benchmark]: TraceAbstraction took 4114.68 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 33.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.4 MB). Peak memory consumption was 250.2 MB. Max. memory is 11.5 GB. [2018-10-26 20:17:41,464 INFO L168 Benchmark]: Witness Printer took 90.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 11.5 GB. [2018-10-26 20:17:41,469 INFO L336 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 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 273.96 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.22 ms. Allocated memory is still 1.0 GB. Free memory was 943.6 MB in the beginning and 940.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.99 ms. Allocated memory is still 1.0 GB. Free memory is still 940.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 639.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -200.3 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4114.68 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 33.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.4 MB). Peak memory consumption was 250.2 MB. Max. memory is 11.5 GB. * Witness Printer took 90.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: (((((((((((2000 <= n + q && B + A <= 0) && !(B == 0)) && j + n <= 1500) && s <= B + 700) && i <= 0) && j + s <= 700) && 1000 <= j + m) && 2 * m <= 2000) && !(A == 0)) && 1000 <= i + m) && q + 200 <= s) && 700 <= s + A - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (((((((((((2000 <= n + q && !(B == 0)) && j + n <= 1500) && B <= i) && s <= B + 700) && j + s <= 700) && 2 * m <= 2000) && s <= j + 700) && i + A <= 0) && !(A == 0)) && 1000 <= i + m) && q + 200 <= s) && 700 <= s + A - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 36 locations, 1 error locations. SAFE Result, 4.0s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 2.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 82 SDtfs, 6 SDslu, 27 SDs, 0 SdLazy, 16 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 98 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9701612903225807 AbsIntWeakeningRatio, 1.2916666666666667 AbsIntAvgWeakeningVarsNumRemoved, 69.375 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 14 PreInvPairs, 16 NumberOfFragments, 134 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 12 FomulaSimplificationsInter, 1180 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 1604 SizeOfPredicates, 2 NumberOfNonLiveVariables, 198 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...