./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/recursive-simple/id_b3_o5_true-unreach-call_true-termination_true-no-overflow.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0651cab0-c612-4380-9768-2df71503f9b8/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0651cab0-c612-4380-9768-2df71503f9b8/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0651cab0-c612-4380-9768-2df71503f9b8/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0651cab0-c612-4380-9768-2df71503f9b8/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_b3_o5_true-unreach-call_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0651cab0-c612-4380-9768-2df71503f9b8/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0651cab0-c612-4380-9768-2df71503f9b8/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8d39666f7b9e3c393826226f879477647e7209cc ................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 12:39:32,982 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:39:32,983 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:39:32,991 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:39:32,992 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:39:32,992 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:39:32,993 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:39:32,994 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:39:32,995 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:39:32,996 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:39:32,997 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:39:32,997 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:39:32,997 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:39:32,998 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:39:32,999 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:39:32,999 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:39:33,000 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:39:33,001 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:39:33,003 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:39:33,004 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:39:33,004 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:39:33,005 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:39:33,007 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:39:33,007 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:39:33,007 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:39:33,008 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:39:33,009 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:39:33,009 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:39:33,010 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:39:33,010 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:39:33,010 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:39:33,011 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:39:33,011 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:39:33,011 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:39:33,012 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:39:33,012 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:39:33,013 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0651cab0-c612-4380-9768-2df71503f9b8/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-18 12:39:33,023 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:39:33,023 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:39:33,023 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:39:33,024 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 12:39:33,024 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:39:33,024 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:39:33,024 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 12:39:33,024 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:39:33,025 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:39:33,025 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:39:33,025 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:39:33,025 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:39:33,025 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:39:33,025 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:39:33,026 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:39:33,026 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:39:33,026 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:39:33,026 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:39:33,026 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:39:33,026 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:39:33,026 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:39:33,027 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:39:33,027 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:39:33,027 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:39:33,027 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:39:33,027 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:39:33,027 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:39:33,027 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 12:39:33,028 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:39:33,028 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:39:33,028 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_0651cab0-c612-4380-9768-2df71503f9b8/bin-2019/uautomizer 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 -> Automizer 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 -> 8d39666f7b9e3c393826226f879477647e7209cc [2018-11-18 12:39:33,053 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:39:33,061 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:39:33,064 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:39:33,065 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:39:33,065 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:39:33,065 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0651cab0-c612-4380-9768-2df71503f9b8/bin-2019/uautomizer/../../sv-benchmarks/c/recursive-simple/id_b3_o5_true-unreach-call_true-termination_true-no-overflow.c [2018-11-18 12:39:33,105 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0651cab0-c612-4380-9768-2df71503f9b8/bin-2019/uautomizer/data/fddd4cc0a/a56127022e814896916e4715dd31331f/FLAG831a18cd8 [2018-11-18 12:39:33,497 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:39:33,498 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0651cab0-c612-4380-9768-2df71503f9b8/sv-benchmarks/c/recursive-simple/id_b3_o5_true-unreach-call_true-termination_true-no-overflow.c [2018-11-18 12:39:33,501 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0651cab0-c612-4380-9768-2df71503f9b8/bin-2019/uautomizer/data/fddd4cc0a/a56127022e814896916e4715dd31331f/FLAG831a18cd8 [2018-11-18 12:39:33,511 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0651cab0-c612-4380-9768-2df71503f9b8/bin-2019/uautomizer/data/fddd4cc0a/a56127022e814896916e4715dd31331f [2018-11-18 12:39:33,514 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:39:33,515 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 12:39:33,515 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:39:33,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:39:33,517 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:39:33,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:39:33" (1/1) ... [2018-11-18 12:39:33,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d58612 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:33, skipping insertion in model container [2018-11-18 12:39:33,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:39:33" (1/1) ... [2018-11-18 12:39:33,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:39:33,536 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:39:33,637 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:39:33,639 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:39:33,648 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:39:33,656 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:39:33,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:33 WrapperNode [2018-11-18 12:39:33,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:39:33,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:39:33,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:39:33,657 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:39:33,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:33" (1/1) ... [2018-11-18 12:39:33,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:33" (1/1) ... [2018-11-18 12:39:33,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:33" (1/1) ... [2018-11-18 12:39:33,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:33" (1/1) ... [2018-11-18 12:39:33,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:33" (1/1) ... [2018-11-18 12:39:33,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:33" (1/1) ... [2018-11-18 12:39:33,673 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:33" (1/1) ... [2018-11-18 12:39:33,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:39:33,674 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:39:33,674 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:39:33,674 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:39:33,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0651cab0-c612-4380-9768-2df71503f9b8/bin-2019/uautomizer/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 [2018-11-18 12:39:33,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:39:33,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:39:33,748 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2018-11-18 12:39:33,748 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:39:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 12:39:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 12:39:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure id [2018-11-18 12:39:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:39:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:39:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:39:33,837 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:39:33,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:39:33 BoogieIcfgContainer [2018-11-18 12:39:33,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:39:33,838 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:39:33,838 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:39:33,841 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:39:33,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:39:33" (1/3) ... [2018-11-18 12:39:33,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@759a2399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:39:33, skipping insertion in model container [2018-11-18 12:39:33,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:33" (2/3) ... [2018-11-18 12:39:33,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@759a2399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:39:33, skipping insertion in model container [2018-11-18 12:39:33,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:39:33" (3/3) ... [2018-11-18 12:39:33,843 INFO L112 eAbstractionObserver]: Analyzing ICFG id_b3_o5_true-unreach-call_true-termination_true-no-overflow.c [2018-11-18 12:39:33,849 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:39:33,853 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:39:33,862 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:39:33,879 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:39:33,879 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:39:33,879 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:39:33,879 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:39:33,879 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:39:33,879 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:39:33,879 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:39:33,879 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:39:33,879 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:39:33,889 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-11-18 12:39:33,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 12:39:33,893 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:39:33,893 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:39:33,894 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:39:33,897 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:39:33,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1250208381, now seen corresponding path program 1 times [2018-11-18 12:39:33,899 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:39:33,899 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:39:33,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:39:33,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:39:33,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:39:33,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:39:34,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:39:34,009 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:39:34,009 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 12:39:34,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 12:39:34,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 12:39:34,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 12:39:34,021 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 5 states. [2018-11-18 12:39:34,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:39:34,052 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2018-11-18 12:39:34,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 12:39:34,055 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-11-18 12:39:34,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:39:34,064 INFO L225 Difference]: With dead ends: 33 [2018-11-18 12:39:34,064 INFO L226 Difference]: Without dead ends: 19 [2018-11-18 12:39:34,067 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 12:39:34,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-18 12:39:34,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-18 12:39:34,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-18 12:39:34,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-11-18 12:39:34,094 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 13 [2018-11-18 12:39:34,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:39:34,095 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-11-18 12:39:34,095 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 12:39:34,095 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-18 12:39:34,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 12:39:34,096 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:39:34,096 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:39:34,096 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:39:34,096 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:39:34,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1951994857, now seen corresponding path program 1 times [2018-11-18 12:39:34,097 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:39:34,097 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:39:34,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:39:34,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:39:34,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:39:34,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:39:34,154 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 12:39:34,154 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:39:34,154 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 12:39:34,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 12:39:34,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 12:39:34,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 12:39:34,156 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 5 states. [2018-11-18 12:39:34,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:39:34,176 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2018-11-18 12:39:34,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 12:39:34,177 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-11-18 12:39:34,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:39:34,177 INFO L225 Difference]: With dead ends: 31 [2018-11-18 12:39:34,177 INFO L226 Difference]: Without dead ends: 23 [2018-11-18 12:39:34,178 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 12:39:34,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-18 12:39:34,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2018-11-18 12:39:34,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-18 12:39:34,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-11-18 12:39:34,182 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 20 [2018-11-18 12:39:34,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:39:34,182 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-11-18 12:39:34,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 12:39:34,182 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-11-18 12:39:34,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 12:39:34,183 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:39:34,183 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:39:34,183 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:39:34,183 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:39:34,183 INFO L82 PathProgramCache]: Analyzing trace with hash -1923365706, now seen corresponding path program 1 times [2018-11-18 12:39:34,183 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:39:34,183 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:39:34,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:39:34,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:39:34,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:39:34,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:39:34,248 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 12:39:34,248 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:39:34,249 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0651cab0-c612-4380-9768-2df71503f9b8/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:39:34,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:39:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:39:34,274 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:39:34,329 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 12:39:34,346 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:39:34,346 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2018-11-18 12:39:34,346 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 12:39:34,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 12:39:34,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-11-18 12:39:34,347 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 10 states. [2018-11-18 12:39:34,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:39:34,392 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2018-11-18 12:39:34,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 12:39:34,392 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2018-11-18 12:39:34,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:39:34,393 INFO L225 Difference]: With dead ends: 27 [2018-11-18 12:39:34,393 INFO L226 Difference]: Without dead ends: 23 [2018-11-18 12:39:34,394 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2018-11-18 12:39:34,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-18 12:39:34,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-11-18 12:39:34,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-18 12:39:34,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2018-11-18 12:39:34,397 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 20 [2018-11-18 12:39:34,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:39:34,397 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2018-11-18 12:39:34,397 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 12:39:34,397 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2018-11-18 12:39:34,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-18 12:39:34,398 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:39:34,398 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:39:34,398 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:39:34,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:39:34,398 INFO L82 PathProgramCache]: Analyzing trace with hash 376843494, now seen corresponding path program 1 times [2018-11-18 12:39:34,398 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:39:34,398 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:39:34,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:39:34,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:39:34,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:39:34,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:39:34,432 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-18 12:39:34,432 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:39:34,432 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 12:39:34,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 12:39:34,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 12:39:34,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 12:39:34,433 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 5 states. [2018-11-18 12:39:34,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:39:34,442 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2018-11-18 12:39:34,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 12:39:34,443 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2018-11-18 12:39:34,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:39:34,443 INFO L225 Difference]: With dead ends: 23 [2018-11-18 12:39:34,443 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 12:39:34,444 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 12:39:34,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 12:39:34,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 12:39:34,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 12:39:34,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 12:39:34,444 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-11-18 12:39:34,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:39:34,444 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:39:34,444 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 12:39:34,445 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 12:39:34,445 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 12:39:34,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 12:39:34,457 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 12:39:34,457 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:39:34,457 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:39:34,457 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 12:39:34,458 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:39:34,458 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:39:34,458 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 11 17) the Hoare annotation is: true [2018-11-18 12:39:34,458 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 11 17) no Hoare annotation was computed. [2018-11-18 12:39:34,458 INFO L425 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-11-18 12:39:34,458 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2018-11-18 12:39:34,458 INFO L425 ceAbstractionStarter]: For program point L14(lines 14 16) no Hoare annotation was computed. [2018-11-18 12:39:34,458 INFO L428 ceAbstractionStarter]: At program point L13(line 13) the Hoare annotation is: true [2018-11-18 12:39:34,458 INFO L425 ceAbstractionStarter]: For program point L13-1(line 13) no Hoare annotation was computed. [2018-11-18 12:39:34,458 INFO L425 ceAbstractionStarter]: For program point L14-2(lines 11 17) no Hoare annotation was computed. [2018-11-18 12:39:34,459 INFO L425 ceAbstractionStarter]: For program point idFINAL(lines 4 9) no Hoare annotation was computed. [2018-11-18 12:39:34,459 INFO L425 ceAbstractionStarter]: For program point idEXIT(lines 4 9) no Hoare annotation was computed. [2018-11-18 12:39:34,459 INFO L428 ceAbstractionStarter]: At program point idENTRY(lines 4 9) the Hoare annotation is: true [2018-11-18 12:39:34,459 INFO L425 ceAbstractionStarter]: For program point L7(line 7) no Hoare annotation was computed. [2018-11-18 12:39:34,459 INFO L428 ceAbstractionStarter]: At program point L6(line 6) the Hoare annotation is: true [2018-11-18 12:39:34,459 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-18 12:39:34,459 INFO L425 ceAbstractionStarter]: For program point L6-1(line 6) no Hoare annotation was computed. [2018-11-18 12:39:34,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:39:34 BoogieIcfgContainer [2018-11-18 12:39:34,461 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:39:34,461 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:39:34,461 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:39:34,461 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:39:34,462 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:39:33" (3/4) ... [2018-11-18 12:39:34,465 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 12:39:34,469 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 12:39:34,469 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 12:39:34,469 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2018-11-18 12:39:34,472 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 12:39:34,473 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 12:39:34,473 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 12:39:34,500 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0651cab0-c612-4380-9768-2df71503f9b8/bin-2019/uautomizer/witness.graphml [2018-11-18 12:39:34,500 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:39:34,500 INFO L168 Benchmark]: Toolchain (without parser) took 986.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -94.6 MB). Peak memory consumption was 43.3 MB. Max. memory is 11.5 GB. [2018-11-18 12:39:34,501 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:39:34,501 INFO L168 Benchmark]: CACSL2BoogieTranslator took 141.28 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:39:34,501 INFO L168 Benchmark]: Boogie Preprocessor took 17.13 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:39:34,502 INFO L168 Benchmark]: RCFGBuilder took 163.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 948.5 MB in the beginning and 1.1 GB in the end (delta: -175.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 11.5 GB. [2018-11-18 12:39:34,502 INFO L168 Benchmark]: TraceAbstraction took 622.88 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: 67.4 MB). Peak memory consumption was 67.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:39:34,502 INFO L168 Benchmark]: Witness Printer took 38.58 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:39:34,504 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 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 141.28 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.13 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 163.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 948.5 MB in the beginning and 1.1 GB in the end (delta: -175.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 622.88 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: 67.4 MB). Peak memory consumption was 67.4 MB. Max. memory is 11.5 GB. * Witness Printer took 38.58 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: 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: 15]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. SAFE Result, 0.5s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 74 SDtfs, 6 SDslu, 251 SDs, 0 SdLazy, 51 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=3, 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, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 7 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 95 ConstructedInterpolants, 0 QuantifiedInterpolants, 2967 SizeOfPredicates, 2 NumberOfNonLiveVariables, 51 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 23/27 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...