./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-examples/sanfoundry_24_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b68653ba-19cc-460d-b416-81e113c1c8de/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b68653ba-19cc-460d-b416-81e113c1c8de/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b68653ba-19cc-460d-b416-81e113c1c8de/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b68653ba-19cc-460d-b416-81e113c1c8de/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-examples/sanfoundry_24_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_b68653ba-19cc-460d-b416-81e113c1c8de/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b68653ba-19cc-460d-b416-81e113c1c8de/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 63b671e779f88a024ade70e8e63a2c2a737aca60 ............................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 02:38:58,590 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 02:38:58,591 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 02:38:58,599 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 02:38:58,599 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 02:38:58,600 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 02:38:58,601 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 02:38:58,602 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 02:38:58,603 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 02:38:58,604 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 02:38:58,605 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 02:38:58,605 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 02:38:58,605 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 02:38:58,606 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 02:38:58,607 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 02:38:58,609 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 02:38:58,610 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 02:38:58,611 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 02:38:58,612 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 02:38:58,614 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 02:38:58,614 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 02:38:58,615 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 02:38:58,617 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 02:38:58,617 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 02:38:58,617 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 02:38:58,618 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 02:38:58,619 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 02:38:58,619 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 02:38:58,620 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 02:38:58,621 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 02:38:58,621 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 02:38:58,622 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 02:38:58,622 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 02:38:58,622 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 02:38:58,623 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 02:38:58,624 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 02:38:58,624 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b68653ba-19cc-460d-b416-81e113c1c8de/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 02:38:58,634 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 02:38:58,634 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 02:38:58,635 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 02:38:58,635 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 02:38:58,635 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 02:38:58,635 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 02:38:58,636 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 02:38:58,636 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 02:38:58,636 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 02:38:58,636 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 02:38:58,636 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 02:38:58,636 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 02:38:58,637 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 02:38:58,637 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 02:38:58,637 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 02:38:58,637 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 02:38:58,638 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 02:38:58,638 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 02:38:58,638 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 02:38:58,638 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 02:38:58,638 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 02:38:58,638 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 02:38:58,639 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 02:38:58,639 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 02:38:58,639 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 02:38:58,639 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 02:38:58,639 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 02:38:58,639 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 02:38:58,639 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 02:38:58,640 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 02:38:58,640 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 02:38:58,640 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 02:38:58,640 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 02:38:58,640 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 02:38:58,640 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 02:38:58,640 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 02:38:58,641 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 02:38:58,641 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_b68653ba-19cc-460d-b416-81e113c1c8de/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 -> 63b671e779f88a024ade70e8e63a2c2a737aca60 [2018-11-23 02:38:58,663 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 02:38:58,671 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 02:38:58,674 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 02:38:58,675 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 02:38:58,675 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 02:38:58,676 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b68653ba-19cc-460d-b416-81e113c1c8de/bin-2019/utaipan/../../sv-benchmarks/c/array-examples/sanfoundry_24_true-unreach-call_true-termination.i [2018-11-23 02:38:58,713 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b68653ba-19cc-460d-b416-81e113c1c8de/bin-2019/utaipan/data/41db0a8cf/3675e0f0347a4ef4a4b9104a7c2ed76f/FLAGb58344e68 [2018-11-23 02:38:59,115 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 02:38:59,115 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b68653ba-19cc-460d-b416-81e113c1c8de/sv-benchmarks/c/array-examples/sanfoundry_24_true-unreach-call_true-termination.i [2018-11-23 02:38:59,119 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b68653ba-19cc-460d-b416-81e113c1c8de/bin-2019/utaipan/data/41db0a8cf/3675e0f0347a4ef4a4b9104a7c2ed76f/FLAGb58344e68 [2018-11-23 02:38:59,129 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b68653ba-19cc-460d-b416-81e113c1c8de/bin-2019/utaipan/data/41db0a8cf/3675e0f0347a4ef4a4b9104a7c2ed76f [2018-11-23 02:38:59,131 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 02:38:59,132 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 02:38:59,132 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 02:38:59,132 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 02:38:59,134 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 02:38:59,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:38:59" (1/1) ... [2018-11-23 02:38:59,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@632440f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:59, skipping insertion in model container [2018-11-23 02:38:59,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:38:59" (1/1) ... [2018-11-23 02:38:59,143 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 02:38:59,156 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 02:38:59,264 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 02:38:59,266 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 02:38:59,279 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 02:38:59,293 INFO L195 MainTranslator]: Completed translation [2018-11-23 02:38:59,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:59 WrapperNode [2018-11-23 02:38:59,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 02:38:59,294 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 02:38:59,294 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 02:38:59,294 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 02:38:59,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:59" (1/1) ... [2018-11-23 02:38:59,304 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:59" (1/1) ... [2018-11-23 02:38:59,309 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 02:38:59,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 02:38:59,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 02:38:59,309 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 02:38:59,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:59" (1/1) ... [2018-11-23 02:38:59,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:59" (1/1) ... [2018-11-23 02:38:59,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:59" (1/1) ... [2018-11-23 02:38:59,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:59" (1/1) ... [2018-11-23 02:38:59,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:59" (1/1) ... [2018-11-23 02:38:59,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:59" (1/1) ... [2018-11-23 02:38:59,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:59" (1/1) ... [2018-11-23 02:38:59,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 02:38:59,367 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 02:38:59,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 02:38:59,368 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 02:38:59,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b68653ba-19cc-460d-b416-81e113c1c8de/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 [2018-11-23 02:38:59,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 02:38:59,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 02:38:59,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 02:38:59,408 INFO L130 BoogieDeclarations]: Found specification of procedure printOdd [2018-11-23 02:38:59,408 INFO L138 BoogieDeclarations]: Found implementation of procedure printOdd [2018-11-23 02:38:59,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 02:38:59,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 02:38:59,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 02:38:59,409 INFO L130 BoogieDeclarations]: Found specification of procedure printEven [2018-11-23 02:38:59,409 INFO L138 BoogieDeclarations]: Found implementation of procedure printEven [2018-11-23 02:38:59,409 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 02:38:59,409 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 02:38:59,409 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 02:38:59,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 02:38:59,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 02:38:59,552 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 02:38:59,552 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 02:38:59,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:38:59 BoogieIcfgContainer [2018-11-23 02:38:59,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 02:38:59,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 02:38:59,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 02:38:59,555 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 02:38:59,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:38:59" (1/3) ... [2018-11-23 02:38:59,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc2b333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:38:59, skipping insertion in model container [2018-11-23 02:38:59,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:59" (2/3) ... [2018-11-23 02:38:59,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc2b333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:38:59, skipping insertion in model container [2018-11-23 02:38:59,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:38:59" (3/3) ... [2018-11-23 02:38:59,557 INFO L112 eAbstractionObserver]: Analyzing ICFG sanfoundry_24_true-unreach-call_true-termination.i [2018-11-23 02:38:59,563 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 02:38:59,567 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 02:38:59,577 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 02:38:59,596 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 02:38:59,596 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 02:38:59,596 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 02:38:59,596 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 02:38:59,596 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 02:38:59,596 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 02:38:59,597 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 02:38:59,597 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 02:38:59,610 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-11-23 02:38:59,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-23 02:38:59,614 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:38:59,615 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:38:59,616 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:38:59,619 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:38:59,620 INFO L82 PathProgramCache]: Analyzing trace with hash 1836635640, now seen corresponding path program 1 times [2018-11-23 02:38:59,621 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:38:59,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:38:59,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:38:59,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:38:59,649 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:38:59,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:38:59,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 02:38:59,811 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 02:38:59,811 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-23 02:38:59,811 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 02:38:59,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 02:38:59,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 02:38:59,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-23 02:38:59,823 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 8 states. [2018-11-23 02:38:59,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:38:59,954 INFO L93 Difference]: Finished difference Result 70 states and 88 transitions. [2018-11-23 02:38:59,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 02:38:59,956 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2018-11-23 02:38:59,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:38:59,962 INFO L225 Difference]: With dead ends: 70 [2018-11-23 02:38:59,962 INFO L226 Difference]: Without dead ends: 35 [2018-11-23 02:38:59,964 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-11-23 02:38:59,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-23 02:38:59,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-11-23 02:38:59,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-23 02:38:59,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2018-11-23 02:38:59,992 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 14 [2018-11-23 02:38:59,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:38:59,992 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2018-11-23 02:38:59,992 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 02:38:59,992 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2018-11-23 02:38:59,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-23 02:38:59,993 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:38:59,993 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:38:59,993 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:38:59,993 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:38:59,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1211296837, now seen corresponding path program 1 times [2018-11-23 02:38:59,994 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:38:59,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:38:59,995 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:38:59,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:38:59,995 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:39:00,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:39:00,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 02:39:00,048 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 02:39:00,048 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 02:39:00,048 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 02:39:00,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 02:39:00,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 02:39:00,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 02:39:00,050 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 5 states. [2018-11-23 02:39:00,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:39:00,077 INFO L93 Difference]: Finished difference Result 62 states and 71 transitions. [2018-11-23 02:39:00,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 02:39:00,078 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-11-23 02:39:00,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:39:00,080 INFO L225 Difference]: With dead ends: 62 [2018-11-23 02:39:00,080 INFO L226 Difference]: Without dead ends: 45 [2018-11-23 02:39:00,081 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 02:39:00,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-23 02:39:00,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 36. [2018-11-23 02:39:00,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-23 02:39:00,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2018-11-23 02:39:00,091 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 16 [2018-11-23 02:39:00,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:39:00,091 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2018-11-23 02:39:00,091 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 02:39:00,091 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2018-11-23 02:39:00,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-23 02:39:00,092 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:39:00,092 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:39:00,092 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:39:00,092 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:39:00,093 INFO L82 PathProgramCache]: Analyzing trace with hash 308392718, now seen corresponding path program 1 times [2018-11-23 02:39:00,093 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:39:00,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:39:00,094 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:39:00,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:39:00,094 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:39:00,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:39:00,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 02:39:00,203 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 02:39:00,203 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-23 02:39:00,203 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 02:39:00,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 02:39:00,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 02:39:00,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-23 02:39:00,204 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand 8 states. [2018-11-23 02:39:00,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:39:00,297 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2018-11-23 02:39:00,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 02:39:00,298 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2018-11-23 02:39:00,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:39:00,298 INFO L225 Difference]: With dead ends: 36 [2018-11-23 02:39:00,298 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 02:39:00,299 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-11-23 02:39:00,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 02:39:00,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 02:39:00,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 02:39:00,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 02:39:00,299 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2018-11-23 02:39:00,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:39:00,299 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 02:39:00,300 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 02:39:00,300 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 02:39:00,300 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 02:39:00,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 02:39:00,339 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 02:39:00,339 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-23 02:39:00,339 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 02:39:00,340 INFO L451 ceAbstractionStarter]: At program point printOddENTRY(lines 7 9) the Hoare annotation is: true [2018-11-23 02:39:00,340 INFO L444 ceAbstractionStarter]: At program point L8(line 8) the Hoare annotation is: (or (<= (+ (* 2 (div printOdd_~i 2)) 1) printOdd_~i) (let ((.cse0 (+ |printOdd_#in~i| 1))) (< (* 2 (div .cse0 2)) .cse0))) [2018-11-23 02:39:00,340 INFO L448 ceAbstractionStarter]: For program point printOddFINAL(lines 7 9) no Hoare annotation was computed. [2018-11-23 02:39:00,340 INFO L448 ceAbstractionStarter]: For program point printOddEXIT(lines 7 9) no Hoare annotation was computed. [2018-11-23 02:39:00,340 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 02:39:00,340 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 02:39:00,340 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 02:39:00,341 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 02:39:00,341 INFO L448 ceAbstractionStarter]: For program point printEvenEXIT(lines 4 6) no Hoare annotation was computed. [2018-11-23 02:39:00,341 INFO L451 ceAbstractionStarter]: At program point printEvenENTRY(lines 4 6) the Hoare annotation is: true [2018-11-23 02:39:00,341 INFO L448 ceAbstractionStarter]: For program point printEvenFINAL(lines 4 6) no Hoare annotation was computed. [2018-11-23 02:39:00,341 INFO L444 ceAbstractionStarter]: At program point L5(line 5) the Hoare annotation is: (or (< (* 2 (div |printEven_#in~i| 2)) |printEven_#in~i|) (<= printEven_~i (* 2 (div printEven_~i 2)))) [2018-11-23 02:39:00,341 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 10 30) no Hoare annotation was computed. [2018-11-23 02:39:00,341 INFO L444 ceAbstractionStarter]: At program point L19(line 19) the Hoare annotation is: (<= |main_#t~mem3| (* 2 (div |main_#t~mem3| 2))) [2018-11-23 02:39:00,341 INFO L448 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-11-23 02:39:00,341 INFO L448 ceAbstractionStarter]: For program point L17(lines 17 20) no Hoare annotation was computed. [2018-11-23 02:39:00,342 INFO L448 ceAbstractionStarter]: For program point L15-2(lines 15 21) no Hoare annotation was computed. [2018-11-23 02:39:00,342 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 10 30) no Hoare annotation was computed. [2018-11-23 02:39:00,342 INFO L451 ceAbstractionStarter]: At program point L15-3(lines 15 21) the Hoare annotation is: true [2018-11-23 02:39:00,342 INFO L448 ceAbstractionStarter]: For program point L15-4(lines 15 21) no Hoare annotation was computed. [2018-11-23 02:39:00,342 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 10 30) the Hoare annotation is: true [2018-11-23 02:39:00,342 INFO L444 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: (let ((.cse0 (+ |main_#t~mem6| 1))) (<= .cse0 (* 2 (div .cse0 2)))) [2018-11-23 02:39:00,342 INFO L448 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2018-11-23 02:39:00,342 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 27) no Hoare annotation was computed. [2018-11-23 02:39:00,342 INFO L448 ceAbstractionStarter]: For program point L22-2(lines 22 28) no Hoare annotation was computed. [2018-11-23 02:39:00,343 INFO L451 ceAbstractionStarter]: At program point L22-3(lines 22 28) the Hoare annotation is: true [2018-11-23 02:39:00,343 INFO L448 ceAbstractionStarter]: For program point L22-4(lines 22 28) no Hoare annotation was computed. [2018-11-23 02:39:00,343 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2018-11-23 02:39:00,343 INFO L448 ceAbstractionStarter]: For program point L3-3(line 3) no Hoare annotation was computed. [2018-11-23 02:39:00,343 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 3) the Hoare annotation is: true [2018-11-23 02:39:00,343 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 3) no Hoare annotation was computed. [2018-11-23 02:39:00,343 INFO L448 ceAbstractionStarter]: For program point L3(line 3) no Hoare annotation was computed. [2018-11-23 02:39:00,343 INFO L448 ceAbstractionStarter]: For program point L3-1(line 3) no Hoare annotation was computed. [2018-11-23 02:39:00,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:39:00 BoogieIcfgContainer [2018-11-23 02:39:00,348 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 02:39:00,348 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 02:39:00,348 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 02:39:00,348 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 02:39:00,349 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:38:59" (3/4) ... [2018-11-23 02:39:00,352 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 02:39:00,356 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 02:39:00,356 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure printOdd [2018-11-23 02:39:00,357 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure printEven [2018-11-23 02:39:00,357 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 02:39:00,357 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-23 02:39:00,361 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2018-11-23 02:39:00,361 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 02:39:00,362 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 02:39:00,399 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b68653ba-19cc-460d-b416-81e113c1c8de/bin-2019/utaipan/witness.graphml [2018-11-23 02:39:00,399 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 02:39:00,400 INFO L168 Benchmark]: Toolchain (without parser) took 1268.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 961.8 MB in the beginning and 1.1 GB in the end (delta: -97.9 MB). Peak memory consumption was 69.9 MB. Max. memory is 11.5 GB. [2018-11-23 02:39:00,401 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 02:39:00,401 INFO L168 Benchmark]: CACSL2BoogieTranslator took 161.73 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 951.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 02:39:00,402 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.59 ms. Allocated memory is still 1.0 GB. Free memory was 951.1 MB in the beginning and 945.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 02:39:00,402 INFO L168 Benchmark]: Boogie Preprocessor took 58.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -217.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-23 02:39:00,403 INFO L168 Benchmark]: RCFGBuilder took 185.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2018-11-23 02:39:00,403 INFO L168 Benchmark]: TraceAbstraction took 794.63 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: 82.6 MB). Peak memory consumption was 82.6 MB. Max. memory is 11.5 GB. [2018-11-23 02:39:00,403 INFO L168 Benchmark]: Witness Printer took 50.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 02:39:00,405 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 161.73 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 951.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 14.59 ms. Allocated memory is still 1.0 GB. Free memory was 951.1 MB in the beginning and 945.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 58.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -217.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 185.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 794.63 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: 82.6 MB). Peak memory consumption was 82.6 MB. Max. memory is 11.5 GB. * Witness Printer took 50.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 36 locations, 1 error locations. SAFE Result, 0.7s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 92 SDtfs, 26 SDslu, 392 SDs, 0 SdLazy, 127 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s 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, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 23 PreInvPairs, 29 NumberOfFragments, 65 HoareAnnotationTreeSize, 23 FomulaSimplifications, 12 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 20 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 2040 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 1/1 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...