./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/ddlm2013_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_76d2bea9-bf9a-4424-856f-f97e39b1dfa9/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_76d2bea9-bf9a-4424-856f-f97e39b1dfa9/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_76d2bea9-bf9a-4424-856f-f97e39b1dfa9/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_76d2bea9-bf9a-4424-856f-f97e39b1dfa9/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-lit/ddlm2013_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_76d2bea9-bf9a-4424-856f-f97e39b1dfa9/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_76d2bea9-bf9a-4424-856f-f97e39b1dfa9/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 17744505b3a424a40a1b2449004fea58677c1b94 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 08:25:11,338 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 08:25:11,339 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 08:25:11,345 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 08:25:11,345 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 08:25:11,345 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 08:25:11,346 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 08:25:11,347 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 08:25:11,348 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 08:25:11,349 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 08:25:11,350 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 08:25:11,350 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 08:25:11,351 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 08:25:11,351 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 08:25:11,352 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 08:25:11,353 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 08:25:11,354 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 08:25:11,355 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 08:25:11,356 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 08:25:11,358 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 08:25:11,359 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 08:25:11,359 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 08:25:11,361 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 08:25:11,361 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 08:25:11,362 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 08:25:11,362 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 08:25:11,363 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 08:25:11,363 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 08:25:11,364 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 08:25:11,365 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 08:25:11,365 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 08:25:11,366 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 08:25:11,366 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 08:25:11,366 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 08:25:11,367 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 08:25:11,367 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 08:25:11,368 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_76d2bea9-bf9a-4424-856f-f97e39b1dfa9/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 08:25:11,376 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 08:25:11,376 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 08:25:11,377 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 08:25:11,377 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 08:25:11,378 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 08:25:11,378 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 08:25:11,378 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 08:25:11,378 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 08:25:11,378 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 08:25:11,378 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 08:25:11,379 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 08:25:11,379 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 08:25:11,379 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 08:25:11,379 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 08:25:11,379 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 08:25:11,379 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 08:25:11,379 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 08:25:11,380 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 08:25:11,380 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 08:25:11,380 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 08:25:11,380 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 08:25:11,380 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 08:25:11,380 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 08:25:11,381 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 08:25:11,382 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 08:25:11,382 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 08:25:11,383 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 08:25:11,383 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 08:25:11,383 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 08:25:11,383 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 08:25:11,383 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_76d2bea9-bf9a-4424-856f-f97e39b1dfa9/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 -> 17744505b3a424a40a1b2449004fea58677c1b94 [2018-11-23 08:25:11,407 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 08:25:11,416 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 08:25:11,417 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 08:25:11,418 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 08:25:11,418 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 08:25:11,419 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_76d2bea9-bf9a-4424-856f-f97e39b1dfa9/bin-2019/uautomizer/../../sv-benchmarks/c/loop-lit/ddlm2013_true-unreach-call.i [2018-11-23 08:25:11,457 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_76d2bea9-bf9a-4424-856f-f97e39b1dfa9/bin-2019/uautomizer/data/33e05f591/0c730fac144946ecae21db3b6ab9d55c/FLAGd4348c741 [2018-11-23 08:25:11,844 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 08:25:11,845 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_76d2bea9-bf9a-4424-856f-f97e39b1dfa9/sv-benchmarks/c/loop-lit/ddlm2013_true-unreach-call.i [2018-11-23 08:25:11,848 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_76d2bea9-bf9a-4424-856f-f97e39b1dfa9/bin-2019/uautomizer/data/33e05f591/0c730fac144946ecae21db3b6ab9d55c/FLAGd4348c741 [2018-11-23 08:25:11,857 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_76d2bea9-bf9a-4424-856f-f97e39b1dfa9/bin-2019/uautomizer/data/33e05f591/0c730fac144946ecae21db3b6ab9d55c [2018-11-23 08:25:11,859 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 08:25:11,859 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 08:25:11,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 08:25:11,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 08:25:11,863 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 08:25:11,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:25:11" (1/1) ... [2018-11-23 08:25:11,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49ef1641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:11, skipping insertion in model container [2018-11-23 08:25:11,866 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:25:11" (1/1) ... [2018-11-23 08:25:11,872 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 08:25:11,885 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 08:25:11,991 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 08:25:11,993 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 08:25:12,003 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 08:25:12,011 INFO L195 MainTranslator]: Completed translation [2018-11-23 08:25:12,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:12 WrapperNode [2018-11-23 08:25:12,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 08:25:12,012 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 08:25:12,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 08:25:12,012 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 08:25:12,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:12" (1/1) ... [2018-11-23 08:25:12,024 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:12" (1/1) ... [2018-11-23 08:25:12,029 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 08:25:12,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 08:25:12,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 08:25:12,030 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 08:25:12,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:12" (1/1) ... [2018-11-23 08:25:12,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:12" (1/1) ... [2018-11-23 08:25:12,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:12" (1/1) ... [2018-11-23 08:25:12,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:12" (1/1) ... [2018-11-23 08:25:12,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:12" (1/1) ... [2018-11-23 08:25:12,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:12" (1/1) ... [2018-11-23 08:25:12,046 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:12" (1/1) ... [2018-11-23 08:25:12,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 08:25:12,048 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 08:25:12,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 08:25:12,048 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 08:25:12,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_76d2bea9-bf9a-4424-856f-f97e39b1dfa9/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 [2018-11-23 08:25:12,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 08:25:12,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 08:25:12,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 08:25:12,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 08:25:12,149 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 08:25:12,149 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 08:25:12,150 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 08:25:12,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 08:25:12,288 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 08:25:12,288 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 08:25:12,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:25:12 BoogieIcfgContainer [2018-11-23 08:25:12,289 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 08:25:12,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 08:25:12,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 08:25:12,292 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 08:25:12,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:25:11" (1/3) ... [2018-11-23 08:25:12,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d546fc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:25:12, skipping insertion in model container [2018-11-23 08:25:12,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:12" (2/3) ... [2018-11-23 08:25:12,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d546fc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:25:12, skipping insertion in model container [2018-11-23 08:25:12,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:25:12" (3/3) ... [2018-11-23 08:25:12,295 INFO L112 eAbstractionObserver]: Analyzing ICFG ddlm2013_true-unreach-call.i [2018-11-23 08:25:12,304 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 08:25:12,309 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 08:25:12,322 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 08:25:12,347 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 08:25:12,347 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 08:25:12,348 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 08:25:12,348 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 08:25:12,348 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 08:25:12,348 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 08:25:12,348 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 08:25:12,348 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 08:25:12,348 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 08:25:12,363 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-11-23 08:25:12,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-23 08:25:12,368 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:25:12,368 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:25:12,370 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:25:12,373 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:25:12,373 INFO L82 PathProgramCache]: Analyzing trace with hash -382823925, now seen corresponding path program 1 times [2018-11-23 08:25:12,375 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:25:12,375 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:25:12,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:25:12,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:25:12,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:25:12,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:25:12,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:25:12,452 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:25:12,452 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 08:25:12,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 08:25:12,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 08:25:12,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 08:25:12,464 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2018-11-23 08:25:12,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:25:12,477 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2018-11-23 08:25:12,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 08:25:12,478 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-11-23 08:25:12,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:25:12,484 INFO L225 Difference]: With dead ends: 35 [2018-11-23 08:25:12,484 INFO L226 Difference]: Without dead ends: 15 [2018-11-23 08:25:12,486 INFO L631 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 [2018-11-23 08:25:12,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-11-23 08:25:12,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-11-23 08:25:12,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-23 08:25:12,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2018-11-23 08:25:12,508 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2018-11-23 08:25:12,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:25:12,508 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2018-11-23 08:25:12,508 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 08:25:12,508 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2018-11-23 08:25:12,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-23 08:25:12,509 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:25:12,509 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:25:12,509 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:25:12,509 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:25:12,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1944032635, now seen corresponding path program 1 times [2018-11-23 08:25:12,509 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:25:12,510 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:25:12,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:25:12,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:25:12,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:25:12,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:25:12,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:25:12,688 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:25:12,688 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 08:25:12,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 08:25:12,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 08:25:12,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 08:25:12,689 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 5 states. [2018-11-23 08:25:12,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:25:12,717 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2018-11-23 08:25:12,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 08:25:12,717 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-11-23 08:25:12,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:25:12,718 INFO L225 Difference]: With dead ends: 23 [2018-11-23 08:25:12,718 INFO L226 Difference]: Without dead ends: 17 [2018-11-23 08:25:12,719 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 08:25:12,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-23 08:25:12,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-23 08:25:12,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-23 08:25:12,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2018-11-23 08:25:12,722 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 13 [2018-11-23 08:25:12,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:25:12,722 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2018-11-23 08:25:12,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 08:25:12,722 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-11-23 08:25:12,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-23 08:25:12,723 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:25:12,723 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:25:12,723 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:25:12,723 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:25:12,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1646139566, now seen corresponding path program 1 times [2018-11-23 08:25:12,723 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:25:12,724 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:25:12,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:25:12,724 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:25:12,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:25:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:25:12,888 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:25:12,888 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 08:25:12,888 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_76d2bea9-bf9a-4424-856f-f97e39b1dfa9/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 [2018-11-23 08:25:12,907 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:25:12,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:25:12,937 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:25:13,022 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:25:13,036 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 08:25:13,036 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2018-11-23 08:25:13,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-23 08:25:13,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-23 08:25:13,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2018-11-23 08:25:13,038 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 12 states. [2018-11-23 08:25:13,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:25:13,080 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2018-11-23 08:25:13,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 08:25:13,081 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2018-11-23 08:25:13,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:25:13,081 INFO L225 Difference]: With dead ends: 28 [2018-11-23 08:25:13,081 INFO L226 Difference]: Without dead ends: 22 [2018-11-23 08:25:13,082 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2018-11-23 08:25:13,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-23 08:25:13,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2018-11-23 08:25:13,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-23 08:25:13,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2018-11-23 08:25:13,085 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 16 [2018-11-23 08:25:13,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:25:13,085 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2018-11-23 08:25:13,085 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-23 08:25:13,086 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2018-11-23 08:25:13,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-23 08:25:13,086 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:25:13,086 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:25:13,086 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:25:13,086 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:25:13,086 INFO L82 PathProgramCache]: Analyzing trace with hash -945074988, now seen corresponding path program 1 times [2018-11-23 08:25:13,086 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:25:13,086 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:25:13,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:25:13,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:25:13,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:25:13,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:25:13,109 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 08:25:13,109 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:25:13,109 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 08:25:13,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 08:25:13,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 08:25:13,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 08:25:13,110 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand 3 states. [2018-11-23 08:25:13,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:25:13,114 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2018-11-23 08:25:13,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 08:25:13,114 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-11-23 08:25:13,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:25:13,115 INFO L225 Difference]: With dead ends: 31 [2018-11-23 08:25:13,115 INFO L226 Difference]: Without dead ends: 20 [2018-11-23 08:25:13,115 INFO L631 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 [2018-11-23 08:25:13,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-23 08:25:13,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-11-23 08:25:13,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-23 08:25:13,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-11-23 08:25:13,118 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 16 [2018-11-23 08:25:13,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:25:13,118 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-11-23 08:25:13,118 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 08:25:13,118 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-23 08:25:13,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-23 08:25:13,119 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:25:13,119 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:25:13,119 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:25:13,119 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:25:13,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1104392731, now seen corresponding path program 2 times [2018-11-23 08:25:13,119 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:25:13,119 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:25:13,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:25:13,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:25:13,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:25:13,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:25:13,314 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:25:13,314 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 08:25:13,314 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_76d2bea9-bf9a-4424-856f-f97e39b1dfa9/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 [2018-11-23 08:25:13,334 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 08:25:13,342 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 08:25:13,343 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 08:25:13,345 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:25:13,427 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:25:13,446 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 08:25:13,446 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2018-11-23 08:25:13,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-23 08:25:13,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-23 08:25:13,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2018-11-23 08:25:13,447 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 16 states. [2018-11-23 08:25:13,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:25:13,571 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2018-11-23 08:25:13,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-23 08:25:13,572 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 19 [2018-11-23 08:25:13,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:25:13,573 INFO L225 Difference]: With dead ends: 51 [2018-11-23 08:25:13,573 INFO L226 Difference]: Without dead ends: 30 [2018-11-23 08:25:13,573 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2018-11-23 08:25:13,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-11-23 08:25:13,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 23. [2018-11-23 08:25:13,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-23 08:25:13,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2018-11-23 08:25:13,576 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 19 [2018-11-23 08:25:13,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:25:13,577 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2018-11-23 08:25:13,577 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-23 08:25:13,577 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2018-11-23 08:25:13,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-23 08:25:13,577 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:25:13,578 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:25:13,578 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:25:13,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:25:13,578 INFO L82 PathProgramCache]: Analyzing trace with hash -767923148, now seen corresponding path program 1 times [2018-11-23 08:25:13,578 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:25:13,578 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:25:13,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:25:13,579 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 08:25:13,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:25:13,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:25:15,690 WARN L180 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 43 DAG size of output: 15 [2018-11-23 08:25:15,697 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 08:25:15,698 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 08:25:15,698 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_76d2bea9-bf9a-4424-856f-f97e39b1dfa9/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 [2018-11-23 08:25:15,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:25:15,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:25:15,723 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:25:15,740 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 08:25:15,755 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 08:25:15,755 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-11-23 08:25:15,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 08:25:15,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 08:25:15,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-23 08:25:15,756 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 6 states. [2018-11-23 08:25:15,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:25:15,771 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2018-11-23 08:25:15,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 08:25:15,772 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-11-23 08:25:15,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:25:15,772 INFO L225 Difference]: With dead ends: 28 [2018-11-23 08:25:15,772 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 08:25:15,773 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-23 08:25:15,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 08:25:15,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 08:25:15,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 08:25:15,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 08:25:15,773 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2018-11-23 08:25:15,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:25:15,774 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 08:25:15,774 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 08:25:15,774 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 08:25:15,774 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 08:25:15,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 08:25:15,797 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 08:25:15,798 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 08:25:15,798 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 08:25:15,798 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 08:25:15,798 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 08:25:15,798 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 08:25:15,798 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 33) no Hoare annotation was computed. [2018-11-23 08:25:15,799 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 29) no Hoare annotation was computed. [2018-11-23 08:25:15,799 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 10 35) no Hoare annotation was computed. [2018-11-23 08:25:15,799 INFO L448 ceAbstractionStarter]: For program point L25-2(lines 10 35) no Hoare annotation was computed. [2018-11-23 08:25:15,799 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 30) no Hoare annotation was computed. [2018-11-23 08:25:15,799 INFO L448 ceAbstractionStarter]: For program point L21-2(lines 10 35) no Hoare annotation was computed. [2018-11-23 08:25:15,799 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 10 35) no Hoare annotation was computed. [2018-11-23 08:25:15,799 INFO L444 ceAbstractionStarter]: At program point L32(line 32) the Hoare annotation is: (and (<= main_~a~0 main_~b~0) (<= main_~b~0 main_~a~0)) [2018-11-23 08:25:15,800 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 10 35) the Hoare annotation is: true [2018-11-23 08:25:15,800 INFO L448 ceAbstractionStarter]: For program point L16(lines 16 20) no Hoare annotation was computed. [2018-11-23 08:25:15,800 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-23 08:25:15,800 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-23 08:25:15,800 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-23 08:25:15,800 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-23 08:25:15,800 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-23 08:25:15,800 INFO L448 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-23 08:25:15,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:25:15 BoogieIcfgContainer [2018-11-23 08:25:15,802 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 08:25:15,803 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 08:25:15,803 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 08:25:15,803 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 08:25:15,803 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:25:12" (3/4) ... [2018-11-23 08:25:15,805 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 08:25:15,810 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 08:25:15,810 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 08:25:15,810 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-23 08:25:15,813 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-11-23 08:25:15,814 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 08:25:15,814 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 08:25:15,814 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 08:25:15,846 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_76d2bea9-bf9a-4424-856f-f97e39b1dfa9/bin-2019/uautomizer/witness.graphml [2018-11-23 08:25:15,846 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 08:25:15,847 INFO L168 Benchmark]: Toolchain (without parser) took 3987.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 959.3 MB in the beginning and 922.7 MB in the end (delta: 36.6 MB). Peak memory consumption was 166.1 MB. Max. memory is 11.5 GB. [2018-11-23 08:25:15,847 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 08:25:15,848 INFO L168 Benchmark]: CACSL2BoogieTranslator took 151.38 ms. Allocated memory is still 1.0 GB. Free memory was 959.3 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 08:25:15,848 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.66 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 08:25:15,848 INFO L168 Benchmark]: Boogie Preprocessor took 18.03 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 08:25:15,848 INFO L168 Benchmark]: RCFGBuilder took 240.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -169.5 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-23 08:25:15,849 INFO L168 Benchmark]: TraceAbstraction took 3513.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 925.4 MB in the end (delta: 190.0 MB). Peak memory consumption was 190.0 MB. Max. memory is 11.5 GB. [2018-11-23 08:25:15,849 INFO L168 Benchmark]: Witness Printer took 43.48 ms. Allocated memory is still 1.2 GB. Free memory was 925.4 MB in the beginning and 922.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 08:25:15,851 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 151.38 ms. Allocated memory is still 1.0 GB. Free memory was 959.3 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.66 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.03 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 240.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -169.5 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3513.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 925.4 MB in the end (delta: 190.0 MB). Peak memory consumption was 190.0 MB. Max. memory is 11.5 GB. * Witness Printer took 43.48 ms. Allocated memory is still 1.2 GB. Free memory was 925.4 MB in the beginning and 922.7 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. SAFE Result, 3.4s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 100 SDtfs, 28 SDslu, 315 SDs, 0 SdLazy, 161 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=5, 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, 6 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 15 PreInvPairs, 20 NumberOfFragments, 12 HoareAnnotationTreeSize, 15 FomulaSimplifications, 46 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 155 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 146 ConstructedInterpolants, 0 QuantifiedInterpolants, 11503 SizeOfPredicates, 7 NumberOfNonLiveVariables, 188 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 26/50 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...