./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loop-lit/cggmp2005_variant_true-unreach-call_true-termination.c.i --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_8f832b1c-3eb6-4d3d-b13c-3712e46115c3/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8f832b1c-3eb6-4d3d-b13c-3712e46115c3/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8f832b1c-3eb6-4d3d-b13c-3712e46115c3/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8f832b1c-3eb6-4d3d-b13c-3712e46115c3/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-lit/cggmp2005_variant_true-unreach-call_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_8f832b1c-3eb6-4d3d-b13c-3712e46115c3/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8f832b1c-3eb6-4d3d-b13c-3712e46115c3/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 fb13e67548d34af589d64a91d36af5946c1dd198 ............................................................................................................................................................................................................................................................................................................................................................................................................ 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 12:50:47,077 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:50:47,078 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:50:47,086 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:50:47,087 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:50:47,087 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:50:47,089 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:50:47,090 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:50:47,091 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:50:47,092 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:50:47,092 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:50:47,092 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:50:47,093 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:50:47,094 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:50:47,094 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:50:47,095 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:50:47,096 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:50:47,098 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:50:47,099 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:50:47,100 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:50:47,101 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:50:47,102 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:50:47,103 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:50:47,104 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:50:47,104 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:50:47,104 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:50:47,105 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:50:47,105 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:50:47,106 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:50:47,107 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:50:47,107 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:50:47,107 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:50:47,108 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:50:47,108 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:50:47,108 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:50:47,109 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:50:47,109 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8f832b1c-3eb6-4d3d-b13c-3712e46115c3/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-18 12:50:47,119 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:50:47,119 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:50:47,119 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:50:47,119 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 12:50:47,120 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:50:47,120 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:50:47,120 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 12:50:47,121 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:50:47,121 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:50:47,121 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:50:47,121 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:50:47,122 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:50:47,122 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:50:47,122 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:50:47,122 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:50:47,122 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:50:47,122 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:50:47,122 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:50:47,122 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:50:47,123 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:50:47,123 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:50:47,123 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:50:47,123 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:50:47,123 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:50:47,123 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:50:47,123 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:50:47,124 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:50:47,124 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 12:50:47,124 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:50:47,124 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:50:47,124 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_8f832b1c-3eb6-4d3d-b13c-3712e46115c3/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 -> fb13e67548d34af589d64a91d36af5946c1dd198 [2018-11-18 12:50:47,151 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:50:47,165 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:50:47,168 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:50:47,171 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:50:47,171 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:50:47,172 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8f832b1c-3eb6-4d3d-b13c-3712e46115c3/bin-2019/uautomizer/../../sv-benchmarks/c/loop-lit/cggmp2005_variant_true-unreach-call_true-termination.c.i [2018-11-18 12:50:47,220 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8f832b1c-3eb6-4d3d-b13c-3712e46115c3/bin-2019/uautomizer/data/6f69f0570/0fa4427d09e44457834c113787c82525/FLAGeac9978af [2018-11-18 12:50:47,557 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:50:47,557 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8f832b1c-3eb6-4d3d-b13c-3712e46115c3/sv-benchmarks/c/loop-lit/cggmp2005_variant_true-unreach-call_true-termination.c.i [2018-11-18 12:50:47,562 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8f832b1c-3eb6-4d3d-b13c-3712e46115c3/bin-2019/uautomizer/data/6f69f0570/0fa4427d09e44457834c113787c82525/FLAGeac9978af [2018-11-18 12:50:47,571 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8f832b1c-3eb6-4d3d-b13c-3712e46115c3/bin-2019/uautomizer/data/6f69f0570/0fa4427d09e44457834c113787c82525 [2018-11-18 12:50:47,573 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:50:47,573 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 12:50:47,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:50:47,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:50:47,576 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:50:47,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:50:47" (1/1) ... [2018-11-18 12:50:47,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63216a8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:47, skipping insertion in model container [2018-11-18 12:50:47,579 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:50:47" (1/1) ... [2018-11-18 12:50:47,584 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:50:47,596 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:50:47,711 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:50:47,713 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:50:47,722 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:50:47,731 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:50:47,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:47 WrapperNode [2018-11-18 12:50:47,732 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:50:47,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:50:47,733 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:50:47,733 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:50:47,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:47" (1/1) ... [2018-11-18 12:50:47,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:47" (1/1) ... [2018-11-18 12:50:47,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:47" (1/1) ... [2018-11-18 12:50:47,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:47" (1/1) ... [2018-11-18 12:50:47,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:47" (1/1) ... [2018-11-18 12:50:47,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:47" (1/1) ... [2018-11-18 12:50:47,751 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:47" (1/1) ... [2018-11-18 12:50:47,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:50:47,752 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:50:47,752 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:50:47,752 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:50:47,753 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8f832b1c-3eb6-4d3d-b13c-3712e46115c3/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 12:50:47,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:50:47,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:50:47,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 12:50:47,822 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:50:47,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 12:50:47,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-18 12:50:47,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 12:50:47,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 12:50:47,823 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:50:47,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:50:47,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:50:47,922 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:50:47,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:50:47 BoogieIcfgContainer [2018-11-18 12:50:47,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:50:47,923 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:50:47,923 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:50:47,925 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:50:47,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:50:47" (1/3) ... [2018-11-18 12:50:47,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44532ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:50:47, skipping insertion in model container [2018-11-18 12:50:47,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:47" (2/3) ... [2018-11-18 12:50:47,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44532ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:50:47, skipping insertion in model container [2018-11-18 12:50:47,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:50:47" (3/3) ... [2018-11-18 12:50:47,928 INFO L112 eAbstractionObserver]: Analyzing ICFG cggmp2005_variant_true-unreach-call_true-termination.c.i [2018-11-18 12:50:47,933 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:50:47,938 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:50:47,946 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:50:47,963 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:50:47,963 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:50:47,964 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:50:47,964 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:50:47,964 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:50:47,964 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:50:47,964 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:50:47,964 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:50:47,964 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:50:47,974 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-11-18 12:50:47,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 12:50:47,978 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:50:47,978 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:50:47,980 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:50:47,984 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:50:47,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1281911547, now seen corresponding path program 1 times [2018-11-18 12:50:47,985 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:50:47,985 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:50:48,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:48,015 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:50:48,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:48,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:50:48,056 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 12:50:48,058 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:50:48,058 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:50:48,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 12:50:48,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 12:50:48,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:50:48,070 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2018-11-18 12:50:48,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:50:48,083 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2018-11-18 12:50:48,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 12:50:48,084 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-11-18 12:50:48,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:50:48,090 INFO L225 Difference]: With dead ends: 32 [2018-11-18 12:50:48,090 INFO L226 Difference]: Without dead ends: 13 [2018-11-18 12:50:48,093 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:50:48,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-11-18 12:50:48,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-11-18 12:50:48,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-11-18 12:50:48,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-11-18 12:50:48,114 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2018-11-18 12:50:48,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:50:48,114 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-11-18 12:50:48,115 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 12:50:48,115 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-11-18 12:50:48,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 12:50:48,115 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:50:48,115 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:50:48,116 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:50:48,116 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:50:48,116 INFO L82 PathProgramCache]: Analyzing trace with hash -1335306055, now seen corresponding path program 1 times [2018-11-18 12:50:48,116 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:50:48,116 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:50:48,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:48,117 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:50:48,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:48,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:50:48,158 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 12:50:48,158 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:50:48,158 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 12:50:48,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 12:50:48,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 12:50:48,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:50:48,160 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 3 states. [2018-11-18 12:50:48,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:50:48,175 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2018-11-18 12:50:48,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 12:50:48,176 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-11-18 12:50:48,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:50:48,176 INFO L225 Difference]: With dead ends: 20 [2018-11-18 12:50:48,177 INFO L226 Difference]: Without dead ends: 15 [2018-11-18 12:50:48,177 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:50:48,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-11-18 12:50:48,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-11-18 12:50:48,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-18 12:50:48,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-11-18 12:50:48,181 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2018-11-18 12:50:48,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:50:48,181 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-11-18 12:50:48,181 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 12:50:48,181 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-11-18 12:50:48,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 12:50:48,182 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:50:48,182 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:50:48,182 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:50:48,182 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:50:48,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1931535679, now seen corresponding path program 1 times [2018-11-18 12:50:48,183 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:50:48,183 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:50:48,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:48,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:50:48,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:48,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:50:48,370 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:50:48,371 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:50:48,371 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8f832b1c-3eb6-4d3d-b13c-3712e46115c3/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 12:50:48,381 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:50:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:50:48,399 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:50:48,519 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:50:48,545 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:50:48,545 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2018-11-18 12:50:48,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 12:50:48,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 12:50:48,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-11-18 12:50:48,547 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 11 states. [2018-11-18 12:50:48,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:50:48,625 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-11-18 12:50:48,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 12:50:48,625 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 14 [2018-11-18 12:50:48,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:50:48,626 INFO L225 Difference]: With dead ends: 22 [2018-11-18 12:50:48,626 INFO L226 Difference]: Without dead ends: 17 [2018-11-18 12:50:48,626 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-11-18 12:50:48,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-18 12:50:48,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-18 12:50:48,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-18 12:50:48,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-11-18 12:50:48,630 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 14 [2018-11-18 12:50:48,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:50:48,631 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2018-11-18 12:50:48,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 12:50:48,631 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-11-18 12:50:48,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 12:50:48,631 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:50:48,631 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:50:48,631 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:50:48,632 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:50:48,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1745348677, now seen corresponding path program 2 times [2018-11-18 12:50:48,632 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:50:48,632 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:50:48,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:48,633 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:50:48,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:48,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:50:48,747 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 12:50:48,748 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:50:48,748 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8f832b1c-3eb6-4d3d-b13c-3712e46115c3/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 12:50:48,754 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 12:50:48,767 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 12:50:48,767 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 12:50:48,768 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:50:48,879 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:50:48,897 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:50:48,897 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 12 [2018-11-18 12:50:48,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 12:50:48,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 12:50:48,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2018-11-18 12:50:48,898 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 12 states. [2018-11-18 12:50:49,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:50:49,074 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2018-11-18 12:50:49,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 12:50:49,075 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2018-11-18 12:50:49,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:50:49,075 INFO L225 Difference]: With dead ends: 20 [2018-11-18 12:50:49,075 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 12:50:49,076 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2018-11-18 12:50:49,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 12:50:49,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 12:50:49,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 12:50:49,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 12:50:49,076 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2018-11-18 12:50:49,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:50:49,077 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:50:49,077 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 12:50:49,077 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 12:50:49,077 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 12:50:49,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 12:50:49,167 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 12:50:49,167 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:50:49,167 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:50:49,168 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 12:50:49,168 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:50:49,168 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:50:49,168 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 23) the Hoare annotation is: true [2018-11-18 12:50:49,168 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 23) no Hoare annotation was computed. [2018-11-18 12:50:49,168 INFO L425 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-11-18 12:50:49,168 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-11-18 12:50:49,168 INFO L425 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-11-18 12:50:49,168 INFO L421 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: (let ((.cse0 (+ (* 2 main_~mid~0) main_~lo~0))) (and (<= .cse0 main_~hi~0) (<= main_~hi~0 .cse0) (<= main_~lo~0 main_~hi~0))) [2018-11-18 12:50:49,169 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 23) no Hoare annotation was computed. [2018-11-18 12:50:49,169 INFO L421 ceAbstractionStarter]: At program point L16-4(lines 16 20) the Hoare annotation is: (or (let ((.cse0 (+ (* 2 main_~mid~0) main_~lo~0))) (and (<= .cse0 main_~hi~0) (<= main_~hi~0 main_~lo~0) (<= main_~hi~0 .cse0) (<= main_~lo~0 main_~hi~0))) (and (<= main_~lo~0 1) (exists ((v_main_~mid~0_8 Int)) (and (< 0 v_main_~mid~0_8) (= (* 2 v_main_~mid~0_8) (+ main_~hi~0 1)) (<= v_main_~mid~0_8 (+ main_~mid~0 1)))) (<= 1 main_~lo~0) (exists ((v_main_~mid~0_8 Int)) (and (< 0 v_main_~mid~0_8) (= (* 2 v_main_~mid~0_8) (+ main_~hi~0 1)) (<= v_main_~mid~0_8 1))))) [2018-11-18 12:50:49,169 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-18 12:50:49,169 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-18 12:50:49,169 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-18 12:50:49,169 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-18 12:50:49,169 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-18 12:50:49,169 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-18 12:50:49,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:50:49 BoogieIcfgContainer [2018-11-18 12:50:49,177 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:50:49,177 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:50:49,177 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:50:49,177 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:50:49,178 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:50:47" (3/4) ... [2018-11-18 12:50:49,180 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 12:50:49,184 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 12:50:49,184 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 12:50:49,184 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-18 12:50:49,187 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-18 12:50:49,187 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 12:50:49,187 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 12:50:49,212 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8f832b1c-3eb6-4d3d-b13c-3712e46115c3/bin-2019/uautomizer/witness.graphml [2018-11-18 12:50:49,212 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:50:49,213 INFO L168 Benchmark]: Toolchain (without parser) took 1640.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 953.1 MB in the beginning and 981.8 MB in the end (delta: -28.8 MB). Peak memory consumption was 106.0 MB. Max. memory is 11.5 GB. [2018-11-18 12:50:49,214 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:50:49,214 INFO L168 Benchmark]: CACSL2BoogieTranslator took 158.23 ms. Allocated memory is still 1.0 GB. Free memory was 953.1 MB in the beginning and 942.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:50:49,215 INFO L168 Benchmark]: Boogie Preprocessor took 19.39 ms. Allocated memory is still 1.0 GB. Free memory was 942.3 MB in the beginning and 939.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:50:49,215 INFO L168 Benchmark]: RCFGBuilder took 170.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 939.7 MB in the beginning and 1.1 GB in the end (delta: -185.4 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:50:49,216 INFO L168 Benchmark]: TraceAbstraction took 1254.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 984.5 MB in the end (delta: 140.5 MB). Peak memory consumption was 140.5 MB. Max. memory is 11.5 GB. [2018-11-18 12:50:49,216 INFO L168 Benchmark]: Witness Printer took 35.33 ms. Allocated memory is still 1.2 GB. Free memory was 984.5 MB in the beginning and 981.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:50:49,218 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 158.23 ms. Allocated memory is still 1.0 GB. Free memory was 953.1 MB in the beginning and 942.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.39 ms. Allocated memory is still 1.0 GB. Free memory was 942.3 MB in the beginning and 939.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 170.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 939.7 MB in the beginning and 1.1 GB in the end (delta: -185.4 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1254.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 984.5 MB in the end (delta: 140.5 MB). Peak memory consumption was 140.5 MB. Max. memory is 11.5 GB. * Witness Printer took 35.33 ms. Allocated memory is still 1.2 GB. Free memory was 984.5 MB in the beginning and 981.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: (2 * mid + lo <= hi && hi <= 2 * mid + lo) && lo <= hi - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. SAFE Result, 1.2s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 54 SDtfs, 13 SDslu, 104 SDs, 0 SdLazy, 71 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 26 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 11 PreInvPairs, 17 NumberOfFragments, 84 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 113 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 77 ConstructedInterpolants, 6 QuantifiedInterpolants, 6587 SizeOfPredicates, 6 NumberOfNonLiveVariables, 86 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 2/16 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...