./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 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_893da5fa-027f-4ee0-aae9-ac8ac5247991/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_893da5fa-027f-4ee0-aae9-ac8ac5247991/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_893da5fa-027f-4ee0-aae9-ac8ac5247991/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_893da5fa-027f-4ee0-aae9-ac8ac5247991/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_893da5fa-027f-4ee0-aae9-ac8ac5247991/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_893da5fa-027f-4ee0-aae9-ac8ac5247991/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 0.1.23-635dfa2 [2018-12-09 04:57:12,426 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 04:57:12,427 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 04:57:12,433 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 04:57:12,433 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 04:57:12,433 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 04:57:12,434 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 04:57:12,434 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 04:57:12,435 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 04:57:12,436 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 04:57:12,436 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 04:57:12,436 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 04:57:12,436 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 04:57:12,437 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 04:57:12,437 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 04:57:12,438 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 04:57:12,438 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 04:57:12,439 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 04:57:12,440 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 04:57:12,440 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 04:57:12,441 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 04:57:12,442 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 04:57:12,443 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 04:57:12,444 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 04:57:12,444 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 04:57:12,444 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 04:57:12,445 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 04:57:12,445 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 04:57:12,445 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 04:57:12,446 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 04:57:12,446 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 04:57:12,446 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 04:57:12,447 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 04:57:12,447 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 04:57:12,447 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 04:57:12,447 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 04:57:12,448 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_893da5fa-027f-4ee0-aae9-ac8ac5247991/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 04:57:12,457 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 04:57:12,457 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 04:57:12,458 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 04:57:12,458 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 04:57:12,459 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 04:57:12,459 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 04:57:12,459 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 04:57:12,459 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 04:57:12,459 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 04:57:12,459 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 04:57:12,459 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 04:57:12,460 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 04:57:12,460 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 04:57:12,460 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 04:57:12,460 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 04:57:12,461 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 04:57:12,461 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 04:57:12,461 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 04:57:12,461 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 04:57:12,461 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 04:57:12,461 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 04:57:12,462 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 04:57:12,462 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 04:57:12,462 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 04:57:12,462 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 04:57:12,462 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 04:57:12,462 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 04:57:12,462 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 04:57:12,463 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 04:57:12,463 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 04:57:12,463 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 04:57:12,463 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 04:57:12,463 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 04:57:12,463 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 04:57:12,464 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 04:57:12,464 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 04:57:12,464 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_893da5fa-027f-4ee0-aae9-ac8ac5247991/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 [2018-12-09 04:57:12,487 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 04:57:12,496 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 04:57:12,499 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 04:57:12,500 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 04:57:12,500 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 04:57:12,501 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_893da5fa-027f-4ee0-aae9-ac8ac5247991/bin-2019/utaipan/../../sv-benchmarks/c/array-examples/sanfoundry_24_true-unreach-call_true-termination.i [2018-12-09 04:57:12,543 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_893da5fa-027f-4ee0-aae9-ac8ac5247991/bin-2019/utaipan/data/10bebd945/fedc729d72ae448487b6b80c3b766fca/FLAG7a22356f7 [2018-12-09 04:57:12,874 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 04:57:12,874 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_893da5fa-027f-4ee0-aae9-ac8ac5247991/sv-benchmarks/c/array-examples/sanfoundry_24_true-unreach-call_true-termination.i [2018-12-09 04:57:12,878 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_893da5fa-027f-4ee0-aae9-ac8ac5247991/bin-2019/utaipan/data/10bebd945/fedc729d72ae448487b6b80c3b766fca/FLAG7a22356f7 [2018-12-09 04:57:12,886 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_893da5fa-027f-4ee0-aae9-ac8ac5247991/bin-2019/utaipan/data/10bebd945/fedc729d72ae448487b6b80c3b766fca [2018-12-09 04:57:12,889 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 04:57:12,890 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 04:57:12,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 04:57:12,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 04:57:12,893 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 04:57:12,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:57:12" (1/1) ... [2018-12-09 04:57:12,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1be4e96e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:57:12, skipping insertion in model container [2018-12-09 04:57:12,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:57:12" (1/1) ... [2018-12-09 04:57:12,901 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 04:57:12,910 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 04:57:13,002 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 04:57:13,004 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 04:57:13,016 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 04:57:13,030 INFO L195 MainTranslator]: Completed translation [2018-12-09 04:57:13,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:57:13 WrapperNode [2018-12-09 04:57:13,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 04:57:13,031 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 04:57:13,031 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 04:57:13,031 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 04:57:13,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:57:13" (1/1) ... [2018-12-09 04:57:13,040 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:57:13" (1/1) ... [2018-12-09 04:57:13,044 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 04:57:13,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 04:57:13,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 04:57:13,045 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 04:57:13,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:57:13" (1/1) ... [2018-12-09 04:57:13,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:57:13" (1/1) ... [2018-12-09 04:57:13,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:57:13" (1/1) ... [2018-12-09 04:57:13,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:57:13" (1/1) ... [2018-12-09 04:57:13,085 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:57:13" (1/1) ... [2018-12-09 04:57:13,088 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:57:13" (1/1) ... [2018-12-09 04:57:13,088 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:57:13" (1/1) ... [2018-12-09 04:57:13,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 04:57:13,089 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 04:57:13,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 04:57:13,090 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 04:57:13,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:57:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_893da5fa-027f-4ee0-aae9-ac8ac5247991/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 [2018-12-09 04:57:13,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 04:57:13,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 04:57:13,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 04:57:13,121 INFO L130 BoogieDeclarations]: Found specification of procedure printOdd [2018-12-09 04:57:13,121 INFO L138 BoogieDeclarations]: Found implementation of procedure printOdd [2018-12-09 04:57:13,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 04:57:13,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 04:57:13,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 04:57:13,121 INFO L130 BoogieDeclarations]: Found specification of procedure printEven [2018-12-09 04:57:13,121 INFO L138 BoogieDeclarations]: Found implementation of procedure printEven [2018-12-09 04:57:13,121 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 04:57:13,122 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 04:57:13,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 04:57:13,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 04:57:13,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 04:57:13,238 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 04:57:13,239 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 04:57:13,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:57:13 BoogieIcfgContainer [2018-12-09 04:57:13,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 04:57:13,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 04:57:13,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 04:57:13,241 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 04:57:13,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 04:57:12" (1/3) ... [2018-12-09 04:57:13,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39063509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:57:13, skipping insertion in model container [2018-12-09 04:57:13,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:57:13" (2/3) ... [2018-12-09 04:57:13,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39063509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:57:13, skipping insertion in model container [2018-12-09 04:57:13,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:57:13" (3/3) ... [2018-12-09 04:57:13,243 INFO L112 eAbstractionObserver]: Analyzing ICFG sanfoundry_24_true-unreach-call_true-termination.i [2018-12-09 04:57:13,249 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 04:57:13,253 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 04:57:13,262 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 04:57:13,280 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 04:57:13,280 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 04:57:13,281 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 04:57:13,281 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 04:57:13,281 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 04:57:13,281 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 04:57:13,281 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 04:57:13,281 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 04:57:13,291 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-12-09 04:57:13,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-09 04:57:13,295 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 04:57:13,295 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 04:57:13,297 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 04:57:13,299 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:57:13,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1836635640, now seen corresponding path program 1 times [2018-12-09 04:57:13,301 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 04:57:13,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:57:13,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:57:13,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:57:13,328 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 04:57:13,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:57:13,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 04:57:13,462 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 04:57:13,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 04:57:13,462 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 04:57:13,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 04:57:13,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 04:57:13,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-09 04:57:13,473 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 8 states. [2018-12-09 04:57:13,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 04:57:13,542 INFO L93 Difference]: Finished difference Result 70 states and 88 transitions. [2018-12-09 04:57:13,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 04:57:13,543 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2018-12-09 04:57:13,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 04:57:13,548 INFO L225 Difference]: With dead ends: 70 [2018-12-09 04:57:13,548 INFO L226 Difference]: Without dead ends: 35 [2018-12-09 04:57:13,551 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 [2018-12-09 04:57:13,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-12-09 04:57:13,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-12-09 04:57:13,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-12-09 04:57:13,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2018-12-09 04:57:13,574 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 14 [2018-12-09 04:57:13,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 04:57:13,574 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2018-12-09 04:57:13,574 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 04:57:13,574 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2018-12-09 04:57:13,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-09 04:57:13,575 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 04:57:13,575 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 04:57:13,575 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 04:57:13,575 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:57:13,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1211296837, now seen corresponding path program 1 times [2018-12-09 04:57:13,575 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 04:57:13,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:57:13,576 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:57:13,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:57:13,576 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 04:57:13,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:57:13,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 04:57:13,611 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 04:57:13,611 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 04:57:13,611 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 04:57:13,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 04:57:13,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 04:57:13,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-09 04:57:13,613 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 5 states. [2018-12-09 04:57:13,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 04:57:13,635 INFO L93 Difference]: Finished difference Result 62 states and 71 transitions. [2018-12-09 04:57:13,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 04:57:13,636 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-12-09 04:57:13,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 04:57:13,637 INFO L225 Difference]: With dead ends: 62 [2018-12-09 04:57:13,638 INFO L226 Difference]: Without dead ends: 45 [2018-12-09 04:57:13,638 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 [2018-12-09 04:57:13,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-12-09 04:57:13,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 36. [2018-12-09 04:57:13,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-12-09 04:57:13,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2018-12-09 04:57:13,644 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 16 [2018-12-09 04:57:13,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 04:57:13,645 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2018-12-09 04:57:13,645 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 04:57:13,645 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2018-12-09 04:57:13,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 04:57:13,645 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 04:57:13,645 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 04:57:13,645 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 04:57:13,646 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:57:13,646 INFO L82 PathProgramCache]: Analyzing trace with hash 308392718, now seen corresponding path program 1 times [2018-12-09 04:57:13,646 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 04:57:13,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:57:13,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:57:13,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:57:13,647 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 04:57:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:57:13,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 04:57:13,712 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 04:57:13,712 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 04:57:13,712 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 04:57:13,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 04:57:13,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 04:57:13,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-09 04:57:13,713 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand 8 states. [2018-12-09 04:57:13,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 04:57:13,765 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2018-12-09 04:57:13,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 04:57:13,766 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2018-12-09 04:57:13,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 04:57:13,766 INFO L225 Difference]: With dead ends: 36 [2018-12-09 04:57:13,766 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 04:57:13,767 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 [2018-12-09 04:57:13,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 04:57:13,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 04:57:13,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 04:57:13,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 04:57:13,767 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2018-12-09 04:57:13,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 04:57:13,767 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 04:57:13,767 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 04:57:13,767 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 04:57:13,768 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 04:57:13,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 04:57:13,808 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 04:57:13,808 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 04:57:13,808 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 04:57:13,808 INFO L451 ceAbstractionStarter]: At program point printOddENTRY(lines 7 9) the Hoare annotation is: true [2018-12-09 04:57:13,808 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))) [2018-12-09 04:57:13,808 INFO L448 ceAbstractionStarter]: For program point printOddFINAL(lines 7 9) no Hoare annotation was computed. [2018-12-09 04:57:13,808 INFO L448 ceAbstractionStarter]: For program point printOddEXIT(lines 7 9) no Hoare annotation was computed. [2018-12-09 04:57:13,808 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 04:57:13,808 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 04:57:13,808 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 04:57:13,808 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 04:57:13,809 INFO L448 ceAbstractionStarter]: For program point printEvenEXIT(lines 4 6) no Hoare annotation was computed. [2018-12-09 04:57:13,809 INFO L451 ceAbstractionStarter]: At program point printEvenENTRY(lines 4 6) the Hoare annotation is: true [2018-12-09 04:57:13,809 INFO L448 ceAbstractionStarter]: For program point printEvenFINAL(lines 4 6) no Hoare annotation was computed. [2018-12-09 04:57:13,809 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)))) [2018-12-09 04:57:13,809 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 10 30) no Hoare annotation was computed. [2018-12-09 04:57:13,809 INFO L444 ceAbstractionStarter]: At program point L19(line 19) the Hoare annotation is: (<= |main_#t~mem3| (* 2 (div |main_#t~mem3| 2))) [2018-12-09 04:57:13,809 INFO L448 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-12-09 04:57:13,809 INFO L448 ceAbstractionStarter]: For program point L17(lines 17 20) no Hoare annotation was computed. [2018-12-09 04:57:13,809 INFO L448 ceAbstractionStarter]: For program point L15-2(lines 15 21) no Hoare annotation was computed. [2018-12-09 04:57:13,809 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 10 30) no Hoare annotation was computed. [2018-12-09 04:57:13,809 INFO L451 ceAbstractionStarter]: At program point L15-3(lines 15 21) the Hoare annotation is: true [2018-12-09 04:57:13,809 INFO L448 ceAbstractionStarter]: For program point L15-4(lines 15 21) no Hoare annotation was computed. [2018-12-09 04:57:13,809 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 10 30) the Hoare annotation is: true [2018-12-09 04:57:13,809 INFO L444 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: (let ((.cse0 (+ |main_#t~mem6| 1))) (<= .cse0 (* 2 (div .cse0 2)))) [2018-12-09 04:57:13,809 INFO L448 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2018-12-09 04:57:13,809 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 27) no Hoare annotation was computed. [2018-12-09 04:57:13,810 INFO L448 ceAbstractionStarter]: For program point L22-2(lines 22 28) no Hoare annotation was computed. [2018-12-09 04:57:13,810 INFO L451 ceAbstractionStarter]: At program point L22-3(lines 22 28) the Hoare annotation is: true [2018-12-09 04:57:13,810 INFO L448 ceAbstractionStarter]: For program point L22-4(lines 22 28) no Hoare annotation was computed. [2018-12-09 04:57:13,810 INFO L448 ceAbstractionStarter]: For program point L3-3(line 3) no Hoare annotation was computed. [2018-12-09 04:57:13,810 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 3) the Hoare annotation is: true [2018-12-09 04:57:13,810 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 3) no Hoare annotation was computed. [2018-12-09 04:57:13,810 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2018-12-09 04:57:13,810 INFO L448 ceAbstractionStarter]: For program point L3(line 3) no Hoare annotation was computed. [2018-12-09 04:57:13,810 INFO L448 ceAbstractionStarter]: For program point L3-1(line 3) no Hoare annotation was computed. [2018-12-09 04:57:13,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 04:57:13 BoogieIcfgContainer [2018-12-09 04:57:13,813 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 04:57:13,814 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 04:57:13,814 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 04:57:13,814 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 04:57:13,814 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:57:13" (3/4) ... [2018-12-09 04:57:13,816 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 04:57:13,820 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 04:57:13,821 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure printOdd [2018-12-09 04:57:13,821 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure printEven [2018-12-09 04:57:13,821 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 04:57:13,821 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-12-09 04:57:13,824 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2018-12-09 04:57:13,824 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-09 04:57:13,824 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 04:57:13,851 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_893da5fa-027f-4ee0-aae9-ac8ac5247991/bin-2019/utaipan/witness.graphml [2018-12-09 04:57:13,851 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 04:57:13,851 INFO L168 Benchmark]: Toolchain (without parser) took 962.33 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 949.7 MB in the beginning and 981.8 MB in the end (delta: -32.2 MB). Peak memory consumption was 61.1 MB. Max. memory is 11.5 GB. [2018-12-09 04:57:13,852 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 04:57:13,852 INFO L168 Benchmark]: CACSL2BoogieTranslator took 139.92 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 938.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 04:57:13,853 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.71 ms. Allocated memory is still 1.0 GB. Free memory is still 938.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 04:57:13,853 INFO L168 Benchmark]: Boogie Preprocessor took 44.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 938.9 MB in the beginning and 1.1 GB in the end (delta: -147.0 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-12-09 04:57:13,853 INFO L168 Benchmark]: RCFGBuilder took 149.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2018-12-09 04:57:13,853 INFO L168 Benchmark]: TraceAbstraction took 574.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 984.5 MB in the end (delta: 84.4 MB). Peak memory consumption was 84.4 MB. Max. memory is 11.5 GB. [2018-12-09 04:57:13,853 INFO L168 Benchmark]: Witness Printer took 37.21 ms. Allocated memory is still 1.1 GB. Free memory was 984.5 MB in the beginning and 981.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 04:57:13,855 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 139.92 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 938.9 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 13.71 ms. Allocated memory is still 1.0 GB. Free memory is still 938.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 938.9 MB in the beginning and 1.1 GB in the end (delta: -147.0 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 149.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 574.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 984.5 MB in the end (delta: 84.4 MB). Peak memory consumption was 84.4 MB. Max. memory is 11.5 GB. * Witness Printer took 37.21 ms. Allocated memory is still 1.1 GB. Free memory was 984.5 MB in the beginning and 981.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. 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, 0.5s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 92 SDtfs, 26 SDslu, 392 SDs, 0 SdLazy, 127 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s 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, 0.1s 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...