./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/recursive-simple/sum_2x3_true-unreach-call_true-termination.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_bed3e2fd-02e0-4d58-ad37-8c56efdaab78/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bed3e2fd-02e0-4d58-ad37-8c56efdaab78/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bed3e2fd-02e0-4d58-ad37-8c56efdaab78/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bed3e2fd-02e0-4d58-ad37-8c56efdaab78/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/sum_2x3_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bed3e2fd-02e0-4d58-ad37-8c56efdaab78/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bed3e2fd-02e0-4d58-ad37-8c56efdaab78/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 5484cff0bd7499490d21ca1aa6f81abc8cec50b0 ................................................................................................................................................................................................................................................................................................................................................................................................................... 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 16:07:05,107 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:07:05,109 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:07:05,115 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:07:05,115 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:07:05,116 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:07:05,117 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:07:05,118 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:07:05,119 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:07:05,120 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:07:05,120 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:07:05,120 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:07:05,121 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:07:05,122 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:07:05,123 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:07:05,123 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:07:05,124 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:07:05,125 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:07:05,126 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:07:05,127 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:07:05,127 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:07:05,128 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:07:05,130 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:07:05,130 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:07:05,130 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:07:05,131 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:07:05,131 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:07:05,132 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:07:05,133 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:07:05,133 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:07:05,134 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:07:05,134 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:07:05,134 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:07:05,134 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:07:05,135 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:07:05,136 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:07:05,136 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bed3e2fd-02e0-4d58-ad37-8c56efdaab78/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-18 16:07:05,145 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:07:05,145 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:07:05,146 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:07:05,147 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 16:07:05,147 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 16:07:05,147 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 16:07:05,147 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 16:07:05,147 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:07:05,148 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:07:05,148 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:07:05,148 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:07:05,148 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:07:05,148 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:07:05,148 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:07:05,148 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:07:05,148 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:07:05,149 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:07:05,149 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:07:05,149 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:07:05,149 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:07:05,150 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:07:05,150 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:07:05,150 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:07:05,150 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:07:05,151 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:07:05,151 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:07:05,151 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:07:05,151 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 16:07:05,151 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:07:05,151 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 16:07:05,151 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_bed3e2fd-02e0-4d58-ad37-8c56efdaab78/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 -> 5484cff0bd7499490d21ca1aa6f81abc8cec50b0 [2018-11-18 16:07:05,176 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:07:05,185 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:07:05,188 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:07:05,189 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:07:05,189 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:07:05,190 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bed3e2fd-02e0-4d58-ad37-8c56efdaab78/bin-2019/uautomizer/../../sv-benchmarks/c/recursive-simple/sum_2x3_true-unreach-call_true-termination.c [2018-11-18 16:07:05,228 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bed3e2fd-02e0-4d58-ad37-8c56efdaab78/bin-2019/uautomizer/data/79567a4da/13b28dc92646483ea8958c2e5eabc0d6/FLAG54babd887 [2018-11-18 16:07:05,620 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:07:05,621 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bed3e2fd-02e0-4d58-ad37-8c56efdaab78/sv-benchmarks/c/recursive-simple/sum_2x3_true-unreach-call_true-termination.c [2018-11-18 16:07:05,625 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bed3e2fd-02e0-4d58-ad37-8c56efdaab78/bin-2019/uautomizer/data/79567a4da/13b28dc92646483ea8958c2e5eabc0d6/FLAG54babd887 [2018-11-18 16:07:05,635 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bed3e2fd-02e0-4d58-ad37-8c56efdaab78/bin-2019/uautomizer/data/79567a4da/13b28dc92646483ea8958c2e5eabc0d6 [2018-11-18 16:07:05,637 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:07:05,638 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 16:07:05,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:07:05,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:07:05,641 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:07:05,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:07:05" (1/1) ... [2018-11-18 16:07:05,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43218d88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:07:05, skipping insertion in model container [2018-11-18 16:07:05,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:07:05" (1/1) ... [2018-11-18 16:07:05,649 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:07:05,660 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:07:05,776 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:07:05,778 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:07:05,788 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:07:05,797 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:07:05,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:07:05 WrapperNode [2018-11-18 16:07:05,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:07:05,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:07:05,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:07:05,798 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:07:05,807 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:07:05" (1/1) ... [2018-11-18 16:07:05,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:07:05" (1/1) ... [2018-11-18 16:07:05,810 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:07:05" (1/1) ... [2018-11-18 16:07:05,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:07:05" (1/1) ... [2018-11-18 16:07:05,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:07:05" (1/1) ... [2018-11-18 16:07:05,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:07:05" (1/1) ... [2018-11-18 16:07:05,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:07:05" (1/1) ... [2018-11-18 16:07:05,817 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:07:05,817 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:07:05,817 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:07:05,817 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:07:05,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:07:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bed3e2fd-02e0-4d58-ad37-8c56efdaab78/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 16:07:05,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:07:05,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:07:05,887 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2018-11-18 16:07:05,887 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:07:05,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 16:07:05,887 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2018-11-18 16:07:05,887 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:07:05,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:07:05,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:07:05,974 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:07:05,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:07:05 BoogieIcfgContainer [2018-11-18 16:07:05,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:07:05,975 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:07:05,975 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:07:05,978 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:07:05,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:07:05" (1/3) ... [2018-11-18 16:07:05,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b8b97a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:07:05, skipping insertion in model container [2018-11-18 16:07:05,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:07:05" (2/3) ... [2018-11-18 16:07:05,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b8b97a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:07:05, skipping insertion in model container [2018-11-18 16:07:05,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:07:05" (3/3) ... [2018-11-18 16:07:05,980 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_2x3_true-unreach-call_true-termination.c [2018-11-18 16:07:05,986 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:07:05,990 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 16:07:05,998 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 16:07:06,016 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:07:06,016 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:07:06,016 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:07:06,016 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:07:06,016 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:07:06,016 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:07:06,016 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:07:06,016 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:07:06,016 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:07:06,026 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-11-18 16:07:06,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 16:07:06,030 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:07:06,030 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:07:06,032 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:07:06,036 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:07:06,037 INFO L82 PathProgramCache]: Analyzing trace with hash 2001781660, now seen corresponding path program 1 times [2018-11-18 16:07:06,038 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:07:06,039 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:07:06,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:07:06,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:07:06,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:07:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:07:06,158 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 16:07:06,160 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:07:06,160 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 16:07:06,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 16:07:06,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 16:07:06,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 16:07:06,177 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 5 states. [2018-11-18 16:07:06,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:07:06,241 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2018-11-18 16:07:06,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 16:07:06,242 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-11-18 16:07:06,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:07:06,248 INFO L225 Difference]: With dead ends: 30 [2018-11-18 16:07:06,248 INFO L226 Difference]: Without dead ends: 18 [2018-11-18 16:07:06,251 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 16:07:06,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-18 16:07:06,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-18 16:07:06,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-18 16:07:06,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2018-11-18 16:07:06,278 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2018-11-18 16:07:06,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:07:06,278 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2018-11-18 16:07:06,278 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 16:07:06,278 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2018-11-18 16:07:06,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 16:07:06,279 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:07:06,280 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:07:06,280 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:07:06,280 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:07:06,280 INFO L82 PathProgramCache]: Analyzing trace with hash -118151420, now seen corresponding path program 1 times [2018-11-18 16:07:06,280 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:07:06,280 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:07:06,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:07:06,281 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:07:06,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:07:06,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:07:06,344 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 16:07:06,345 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:07:06,345 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bed3e2fd-02e0-4d58-ad37-8c56efdaab78/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 16:07:06,358 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:07:06,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:07:06,383 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:07:06,404 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 16:07:06,420 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 16:07:06,420 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-11-18 16:07:06,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 16:07:06,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 16:07:06,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 16:07:06,421 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 6 states. [2018-11-18 16:07:06,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:07:06,510 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2018-11-18 16:07:06,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 16:07:06,510 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-11-18 16:07:06,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:07:06,511 INFO L225 Difference]: With dead ends: 25 [2018-11-18 16:07:06,511 INFO L226 Difference]: Without dead ends: 21 [2018-11-18 16:07:06,512 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-18 16:07:06,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-18 16:07:06,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-11-18 16:07:06,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-18 16:07:06,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2018-11-18 16:07:06,516 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 19 [2018-11-18 16:07:06,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:07:06,516 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2018-11-18 16:07:06,516 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 16:07:06,516 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2018-11-18 16:07:06,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 16:07:06,517 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:07:06,517 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:07:06,517 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:07:06,518 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:07:06,518 INFO L82 PathProgramCache]: Analyzing trace with hash 764931548, now seen corresponding path program 2 times [2018-11-18 16:07:06,518 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:07:06,518 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:07:06,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:07:06,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:07:06,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:07:06,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:07:06,722 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-18 16:07:06,722 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:07:06,723 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bed3e2fd-02e0-4d58-ad37-8c56efdaab78/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 16:07:06,744 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 16:07:06,757 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 16:07:06,758 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 16:07:06,761 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:07:06,890 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-18 16:07:06,912 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 16:07:06,912 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 17 [2018-11-18 16:07:06,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 16:07:06,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 16:07:06,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2018-11-18 16:07:06,914 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 17 states. [2018-11-18 16:07:07,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:07:07,109 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2018-11-18 16:07:07,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 16:07:07,109 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 25 [2018-11-18 16:07:07,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:07:07,110 INFO L225 Difference]: With dead ends: 28 [2018-11-18 16:07:07,110 INFO L226 Difference]: Without dead ends: 24 [2018-11-18 16:07:07,111 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 20 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=418, Unknown=0, NotChecked=0, Total=506 [2018-11-18 16:07:07,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-11-18 16:07:07,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-11-18 16:07:07,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-18 16:07:07,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2018-11-18 16:07:07,115 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 25 [2018-11-18 16:07:07,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:07:07,116 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2018-11-18 16:07:07,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 16:07:07,116 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2018-11-18 16:07:07,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 16:07:07,117 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:07:07,117 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:07:07,117 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:07:07,117 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:07:07,117 INFO L82 PathProgramCache]: Analyzing trace with hash 601942852, now seen corresponding path program 3 times [2018-11-18 16:07:07,117 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:07:07,117 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:07:07,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:07:07,118 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:07:07,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:07:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:07:07,175 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 15 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-18 16:07:07,176 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:07:07,176 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bed3e2fd-02e0-4d58-ad37-8c56efdaab78/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 16:07:07,182 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 16:07:07,194 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-11-18 16:07:07,194 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 16:07:07,196 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:07:07,205 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 15 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-18 16:07:07,219 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 16:07:07,220 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-11-18 16:07:07,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 16:07:07,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 16:07:07,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-18 16:07:07,220 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 7 states. [2018-11-18 16:07:07,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:07:07,257 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2018-11-18 16:07:07,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 16:07:07,257 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2018-11-18 16:07:07,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:07:07,257 INFO L225 Difference]: With dead ends: 24 [2018-11-18 16:07:07,257 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 16:07:07,258 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-18 16:07:07,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 16:07:07,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 16:07:07,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 16:07:07,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 16:07:07,259 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-11-18 16:07:07,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:07:07,259 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 16:07:07,259 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 16:07:07,259 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 16:07:07,259 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 16:07:07,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 16:07:07,290 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 16:07:07,290 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 16:07:07,290 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 16:07:07,290 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 16:07:07,290 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 16:07:07,290 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 16:07:07,291 INFO L425 ceAbstractionStarter]: For program point sumEXIT(lines 3 9) no Hoare annotation was computed. [2018-11-18 16:07:07,291 INFO L421 ceAbstractionStarter]: At program point L7(line 7) the Hoare annotation is: (and (<= |sum_#in~m| sum_~m) (<= sum_~m |sum_#in~m|) (<= sum_~n |sum_#in~n|) (< 0 sum_~n) (<= |sum_#in~n| sum_~n)) [2018-11-18 16:07:07,291 INFO L425 ceAbstractionStarter]: For program point L7-1(line 7) no Hoare annotation was computed. [2018-11-18 16:07:07,291 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 8) no Hoare annotation was computed. [2018-11-18 16:07:07,291 INFO L425 ceAbstractionStarter]: For program point sumFINAL(lines 3 9) no Hoare annotation was computed. [2018-11-18 16:07:07,291 INFO L428 ceAbstractionStarter]: At program point sumENTRY(lines 3 9) the Hoare annotation is: true [2018-11-18 16:07:07,291 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 11 18) the Hoare annotation is: true [2018-11-18 16:07:07,291 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 11 18) no Hoare annotation was computed. [2018-11-18 16:07:07,291 INFO L425 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-11-18 16:07:07,291 INFO L425 ceAbstractionStarter]: For program point L15(lines 15 17) no Hoare annotation was computed. [2018-11-18 16:07:07,291 INFO L421 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: (and (<= 2 main_~a~0) (<= main_~a~0 2)) [2018-11-18 16:07:07,292 INFO L425 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2018-11-18 16:07:07,292 INFO L425 ceAbstractionStarter]: For program point L15-2(lines 11 18) no Hoare annotation was computed. [2018-11-18 16:07:07,292 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2018-11-18 16:07:07,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:07:07 BoogieIcfgContainer [2018-11-18 16:07:07,294 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 16:07:07,294 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:07:07,294 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:07:07,294 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:07:07,295 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:07:05" (3/4) ... [2018-11-18 16:07:07,297 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 16:07:07,301 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 16:07:07,301 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure sum [2018-11-18 16:07:07,301 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 16:07:07,304 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 16:07:07,305 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 16:07:07,305 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 16:07:07,329 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_bed3e2fd-02e0-4d58-ad37-8c56efdaab78/bin-2019/uautomizer/witness.graphml [2018-11-18 16:07:07,329 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:07:07,330 INFO L168 Benchmark]: Toolchain (without parser) took 1692.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 958.1 MB in the beginning and 921.5 MB in the end (delta: 36.5 MB). Peak memory consumption was 163.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:07:07,331 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:07:07,331 INFO L168 Benchmark]: CACSL2BoogieTranslator took 158.68 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:07:07,331 INFO L168 Benchmark]: Boogie Preprocessor took 19.19 ms. Allocated memory is still 1.0 GB. Free memory is still 947.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:07:07,332 INFO L168 Benchmark]: RCFGBuilder took 157.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -165.4 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2018-11-18 16:07:07,332 INFO L168 Benchmark]: TraceAbstraction took 1318.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 921.5 MB in the end (delta: 191.2 MB). Peak memory consumption was 191.2 MB. Max. memory is 11.5 GB. [2018-11-18 16:07:07,332 INFO L168 Benchmark]: Witness Printer took 35.26 ms. Allocated memory is still 1.2 GB. Free memory is still 921.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:07:07,334 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 158.68 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.19 ms. Allocated memory is still 1.0 GB. Free memory is still 947.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 157.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -165.4 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1318.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 921.5 MB in the end (delta: 191.2 MB). Peak memory consumption was 191.2 MB. Max. memory is 11.5 GB. * Witness Printer took 35.26 ms. Allocated memory is still 1.2 GB. Free memory is still 921.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: 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, 20 locations, 1 error locations. SAFE Result, 1.2s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 54 SDtfs, 36 SDslu, 196 SDs, 0 SdLazy, 203 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 122 GetRequests, 80 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 28 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 163 NumberOfCodeBlocks, 163 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 156 ConstructedInterpolants, 0 QuantifiedInterpolants, 13320 SizeOfPredicates, 15 NumberOfNonLiveVariables, 216 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 65/96 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...