./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id_b2_o3_true-unreach-call_true-termination_true-no-overflow.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_41929e2d-b734-421d-8a57-8bf2b52e48ec/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_41929e2d-b734-421d-8a57-8bf2b52e48ec/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_41929e2d-b734-421d-8a57-8bf2b52e48ec/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_41929e2d-b734-421d-8a57-8bf2b52e48ec/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_b2_o3_true-unreach-call_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_41929e2d-b734-421d-8a57-8bf2b52e48ec/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_41929e2d-b734-421d-8a57-8bf2b52e48ec/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 128b2219e8f86913777da69c49be5957c6dd8c80 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 11:44:38,895 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 11:44:38,896 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 11:44:38,902 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 11:44:38,903 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 11:44:38,903 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 11:44:38,904 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 11:44:38,905 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 11:44:38,906 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 11:44:38,907 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 11:44:38,908 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 11:44:38,908 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 11:44:38,908 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 11:44:38,909 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 11:44:38,910 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 11:44:38,910 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 11:44:38,911 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 11:44:38,912 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 11:44:38,913 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 11:44:38,914 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 11:44:38,915 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 11:44:38,916 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 11:44:38,917 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 11:44:38,918 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 11:44:38,918 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 11:44:38,918 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 11:44:38,919 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 11:44:38,919 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 11:44:38,920 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 11:44:38,920 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 11:44:38,920 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 11:44:38,921 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 11:44:38,921 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 11:44:38,921 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 11:44:38,921 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 11:44:38,922 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 11:44:38,922 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_41929e2d-b734-421d-8a57-8bf2b52e48ec/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 11:44:38,929 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 11:44:38,929 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 11:44:38,930 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 11:44:38,930 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 11:44:38,930 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 11:44:38,930 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 11:44:38,931 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 11:44:38,931 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 11:44:38,931 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 11:44:38,931 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 11:44:38,931 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 11:44:38,931 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 11:44:38,932 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 11:44:38,932 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 11:44:38,932 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 11:44:38,932 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 11:44:38,932 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 11:44:38,932 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 11:44:38,932 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 11:44:38,933 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 11:44:38,933 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 11:44:38,933 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 11:44:38,933 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 11:44:38,933 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 11:44:38,933 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 11:44:38,934 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 11:44:38,934 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 11:44:38,934 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 11:44:38,934 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 11:44:38,934 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 11:44:38,934 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_41929e2d-b734-421d-8a57-8bf2b52e48ec/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 -> 128b2219e8f86913777da69c49be5957c6dd8c80 [2018-11-28 11:44:38,960 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 11:44:38,968 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 11:44:38,971 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 11:44:38,972 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 11:44:38,972 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 11:44:38,973 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_41929e2d-b734-421d-8a57-8bf2b52e48ec/bin-2019/uautomizer/../../sv-benchmarks/c/recursive-simple/id_b2_o3_true-unreach-call_true-termination_true-no-overflow.c [2018-11-28 11:44:39,012 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_41929e2d-b734-421d-8a57-8bf2b52e48ec/bin-2019/uautomizer/data/3057c1cbd/6597b71b5bcc4f5688190e326b54d2d9/FLAG766b89d04 [2018-11-28 11:44:39,347 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 11:44:39,348 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_41929e2d-b734-421d-8a57-8bf2b52e48ec/sv-benchmarks/c/recursive-simple/id_b2_o3_true-unreach-call_true-termination_true-no-overflow.c [2018-11-28 11:44:39,351 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_41929e2d-b734-421d-8a57-8bf2b52e48ec/bin-2019/uautomizer/data/3057c1cbd/6597b71b5bcc4f5688190e326b54d2d9/FLAG766b89d04 [2018-11-28 11:44:39,776 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_41929e2d-b734-421d-8a57-8bf2b52e48ec/bin-2019/uautomizer/data/3057c1cbd/6597b71b5bcc4f5688190e326b54d2d9 [2018-11-28 11:44:39,778 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 11:44:39,779 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 11:44:39,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 11:44:39,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 11:44:39,782 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 11:44:39,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:44:39" (1/1) ... [2018-11-28 11:44:39,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@694ef737 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:39, skipping insertion in model container [2018-11-28 11:44:39,784 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:44:39" (1/1) ... [2018-11-28 11:44:39,788 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 11:44:39,797 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 11:44:39,892 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:44:39,895 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 11:44:39,904 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:44:39,912 INFO L195 MainTranslator]: Completed translation [2018-11-28 11:44:39,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:39 WrapperNode [2018-11-28 11:44:39,913 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 11:44:39,913 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 11:44:39,913 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 11:44:39,913 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 11:44:39,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:39" (1/1) ... [2018-11-28 11:44:39,921 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:39" (1/1) ... [2018-11-28 11:44:39,925 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 11:44:39,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 11:44:39,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 11:44:39,925 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 11:44:39,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:39" (1/1) ... [2018-11-28 11:44:39,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:39" (1/1) ... [2018-11-28 11:44:39,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:39" (1/1) ... [2018-11-28 11:44:39,931 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:39" (1/1) ... [2018-11-28 11:44:39,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:39" (1/1) ... [2018-11-28 11:44:39,934 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:39" (1/1) ... [2018-11-28 11:44:39,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:39" (1/1) ... [2018-11-28 11:44:39,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 11:44:39,935 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 11:44:39,935 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 11:44:39,935 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 11:44:39,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_41929e2d-b734-421d-8a57-8bf2b52e48ec/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 [2018-11-28 11:44:40,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 11:44:40,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 11:44:40,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 11:44:40,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 11:44:40,005 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 11:44:40,005 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 11:44:40,005 INFO L130 BoogieDeclarations]: Found specification of procedure id [2018-11-28 11:44:40,005 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2018-11-28 11:44:40,101 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 11:44:40,101 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 11:44:40,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:44:40 BoogieIcfgContainer [2018-11-28 11:44:40,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 11:44:40,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 11:44:40,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 11:44:40,105 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 11:44:40,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:44:39" (1/3) ... [2018-11-28 11:44:40,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd53546 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:44:40, skipping insertion in model container [2018-11-28 11:44:40,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:39" (2/3) ... [2018-11-28 11:44:40,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd53546 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:44:40, skipping insertion in model container [2018-11-28 11:44:40,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:44:40" (3/3) ... [2018-11-28 11:44:40,108 INFO L112 eAbstractionObserver]: Analyzing ICFG id_b2_o3_true-unreach-call_true-termination_true-no-overflow.c [2018-11-28 11:44:40,116 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 11:44:40,122 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 11:44:40,134 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 11:44:40,158 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 11:44:40,158 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 11:44:40,158 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 11:44:40,158 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 11:44:40,159 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 11:44:40,159 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 11:44:40,159 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 11:44:40,159 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 11:44:40,159 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 11:44:40,173 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-11-28 11:44:40,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 11:44:40,177 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:44:40,178 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:44:40,179 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:44:40,184 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:44:40,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1250208381, now seen corresponding path program 1 times [2018-11-28 11:44:40,185 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:44:40,186 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:44:40,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:44:40,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:44:40,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:44:40,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:44:40,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:44:40,342 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:44:40,342 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 11:44:40,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 11:44:40,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 11:44:40,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 11:44:40,354 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 5 states. [2018-11-28 11:44:40,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:44:40,384 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2018-11-28 11:44:40,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 11:44:40,385 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-11-28 11:44:40,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:44:40,391 INFO L225 Difference]: With dead ends: 33 [2018-11-28 11:44:40,391 INFO L226 Difference]: Without dead ends: 19 [2018-11-28 11:44:40,393 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 11:44:40,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-28 11:44:40,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-28 11:44:40,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-28 11:44:40,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-11-28 11:44:40,418 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 13 [2018-11-28 11:44:40,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:44:40,418 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-11-28 11:44:40,418 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 11:44:40,418 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-28 11:44:40,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-28 11:44:40,420 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:44:40,420 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:44:40,420 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:44:40,420 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:44:40,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1951994857, now seen corresponding path program 1 times [2018-11-28 11:44:40,421 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:44:40,421 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:44:40,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:44:40,422 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:44:40,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:44:40,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:44:40,510 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-28 11:44:40,511 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:44:40,511 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 11:44:40,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 11:44:40,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 11:44:40,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 11:44:40,513 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 5 states. [2018-11-28 11:44:40,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:44:40,531 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2018-11-28 11:44:40,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 11:44:40,532 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-11-28 11:44:40,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:44:40,533 INFO L225 Difference]: With dead ends: 31 [2018-11-28 11:44:40,533 INFO L226 Difference]: Without dead ends: 23 [2018-11-28 11:44:40,534 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 11:44:40,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-28 11:44:40,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2018-11-28 11:44:40,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-28 11:44:40,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-11-28 11:44:40,539 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 20 [2018-11-28 11:44:40,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:44:40,540 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-11-28 11:44:40,540 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 11:44:40,540 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-11-28 11:44:40,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-28 11:44:40,540 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:44:40,541 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:44:40,541 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:44:40,541 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:44:40,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1923365706, now seen corresponding path program 1 times [2018-11-28 11:44:40,542 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:44:40,543 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:44:40,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:44:40,544 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:44:40,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:44:40,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:44:40,663 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-28 11:44:40,663 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 11:44:40,663 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_41929e2d-b734-421d-8a57-8bf2b52e48ec/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 [2018-11-28 11:44:40,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:44:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:44:40,696 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:44:40,733 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-28 11:44:40,748 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 11:44:40,749 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2018-11-28 11:44:40,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 11:44:40,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 11:44:40,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-11-28 11:44:40,750 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 9 states. [2018-11-28 11:44:40,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:44:40,812 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2018-11-28 11:44:40,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 11:44:40,813 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2018-11-28 11:44:40,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:44:40,814 INFO L225 Difference]: With dead ends: 27 [2018-11-28 11:44:40,814 INFO L226 Difference]: Without dead ends: 23 [2018-11-28 11:44:40,814 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-11-28 11:44:40,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-28 11:44:40,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-11-28 11:44:40,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-28 11:44:40,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2018-11-28 11:44:40,819 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 20 [2018-11-28 11:44:40,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:44:40,819 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2018-11-28 11:44:40,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 11:44:40,819 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2018-11-28 11:44:40,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-28 11:44:40,820 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:44:40,820 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:44:40,820 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:44:40,820 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:44:40,820 INFO L82 PathProgramCache]: Analyzing trace with hash 376843494, now seen corresponding path program 1 times [2018-11-28 11:44:40,820 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:44:40,820 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:44:40,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:44:40,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:44:40,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:44:40,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:44:40,884 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-28 11:44:40,884 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:44:40,884 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 11:44:40,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 11:44:40,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 11:44:40,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 11:44:40,885 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 5 states. [2018-11-28 11:44:40,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:44:40,897 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2018-11-28 11:44:40,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 11:44:40,898 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2018-11-28 11:44:40,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:44:40,898 INFO L225 Difference]: With dead ends: 29 [2018-11-28 11:44:40,898 INFO L226 Difference]: Without dead ends: 25 [2018-11-28 11:44:40,899 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 11:44:40,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-11-28 11:44:40,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2018-11-28 11:44:40,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-28 11:44:40,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2018-11-28 11:44:40,903 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 27 [2018-11-28 11:44:40,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:44:40,903 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2018-11-28 11:44:40,903 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 11:44:40,903 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2018-11-28 11:44:40,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-28 11:44:40,904 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:44:40,904 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:44:40,904 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:44:40,904 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:44:40,905 INFO L82 PathProgramCache]: Analyzing trace with hash 405472645, now seen corresponding path program 2 times [2018-11-28 11:44:40,905 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:44:40,905 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:44:40,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:44:40,907 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:44:40,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:44:40,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:44:41,021 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-28 11:44:41,021 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 11:44:41,021 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_41929e2d-b734-421d-8a57-8bf2b52e48ec/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 [2018-11-28 11:44:41,037 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 11:44:41,049 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 11:44:41,049 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 11:44:41,051 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:44:41,093 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-28 11:44:41,108 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 11:44:41,108 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2018-11-28 11:44:41,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-28 11:44:41,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-28 11:44:41,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2018-11-28 11:44:41,109 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 12 states. [2018-11-28 11:44:41,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:44:41,162 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2018-11-28 11:44:41,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 11:44:41,163 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 27 [2018-11-28 11:44:41,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:44:41,164 INFO L225 Difference]: With dead ends: 41 [2018-11-28 11:44:41,164 INFO L226 Difference]: Without dead ends: 29 [2018-11-28 11:44:41,164 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2018-11-28 11:44:41,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-11-28 11:44:41,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2018-11-28 11:44:41,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-28 11:44:41,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2018-11-28 11:44:41,168 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 27 [2018-11-28 11:44:41,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:44:41,169 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2018-11-28 11:44:41,169 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-28 11:44:41,169 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2018-11-28 11:44:41,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-28 11:44:41,169 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:44:41,170 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:44:41,170 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:44:41,170 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:44:41,170 INFO L82 PathProgramCache]: Analyzing trace with hash -617031938, now seen corresponding path program 3 times [2018-11-28 11:44:41,170 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:44:41,170 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:44:41,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:44:41,171 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:44:41,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:44:41,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:44:41,276 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-28 11:44:41,276 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 11:44:41,276 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_41929e2d-b734-421d-8a57-8bf2b52e48ec/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 [2018-11-28 11:44:41,282 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-28 11:44:41,288 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-11-28 11:44:41,289 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 11:44:41,290 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:44:41,342 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-28 11:44:41,357 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-28 11:44:41,357 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2018-11-28 11:44:41,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-28 11:44:41,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-28 11:44:41,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2018-11-28 11:44:41,358 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand 14 states. [2018-11-28 11:44:41,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:44:41,433 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2018-11-28 11:44:41,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 11:44:41,433 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 34 [2018-11-28 11:44:41,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:44:41,434 INFO L225 Difference]: With dead ends: 33 [2018-11-28 11:44:41,434 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 11:44:41,435 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2018-11-28 11:44:41,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 11:44:41,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 11:44:41,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 11:44:41,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 11:44:41,435 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2018-11-28 11:44:41,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:44:41,435 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 11:44:41,436 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-28 11:44:41,436 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 11:44:41,436 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 11:44:41,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 11:44:41,447 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 11:44:41,448 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 11:44:41,448 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 11:44:41,448 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 11:44:41,448 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 11:44:41,448 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 11:44:41,448 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 11 17) the Hoare annotation is: true [2018-11-28 11:44:41,448 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 11 17) no Hoare annotation was computed. [2018-11-28 11:44:41,448 INFO L448 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-11-28 11:44:41,448 INFO L448 ceAbstractionStarter]: For program point L14(lines 14 16) no Hoare annotation was computed. [2018-11-28 11:44:41,449 INFO L451 ceAbstractionStarter]: At program point L13(line 13) the Hoare annotation is: true [2018-11-28 11:44:41,449 INFO L448 ceAbstractionStarter]: For program point L13-1(line 13) no Hoare annotation was computed. [2018-11-28 11:44:41,449 INFO L448 ceAbstractionStarter]: For program point L14-2(lines 11 17) no Hoare annotation was computed. [2018-11-28 11:44:41,449 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2018-11-28 11:44:41,449 INFO L448 ceAbstractionStarter]: For program point idFINAL(lines 4 9) no Hoare annotation was computed. [2018-11-28 11:44:41,449 INFO L448 ceAbstractionStarter]: For program point idEXIT(lines 4 9) no Hoare annotation was computed. [2018-11-28 11:44:41,449 INFO L451 ceAbstractionStarter]: At program point idENTRY(lines 4 9) the Hoare annotation is: true [2018-11-28 11:44:41,449 INFO L448 ceAbstractionStarter]: For program point L7(line 7) no Hoare annotation was computed. [2018-11-28 11:44:41,450 INFO L451 ceAbstractionStarter]: At program point L6(line 6) the Hoare annotation is: true [2018-11-28 11:44:41,450 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-28 11:44:41,450 INFO L448 ceAbstractionStarter]: For program point L6-1(line 6) no Hoare annotation was computed. [2018-11-28 11:44:41,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:44:41 BoogieIcfgContainer [2018-11-28 11:44:41,452 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 11:44:41,452 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 11:44:41,452 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 11:44:41,452 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 11:44:41,453 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:44:40" (3/4) ... [2018-11-28 11:44:41,455 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 11:44:41,459 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 11:44:41,460 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 11:44:41,460 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2018-11-28 11:44:41,463 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-28 11:44:41,463 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 11:44:41,463 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 11:44:41,492 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_41929e2d-b734-421d-8a57-8bf2b52e48ec/bin-2019/uautomizer/witness.graphml [2018-11-28 11:44:41,492 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 11:44:41,493 INFO L168 Benchmark]: Toolchain (without parser) took 1714.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 953.3 MB in the beginning and 929.2 MB in the end (delta: 24.1 MB). Peak memory consumption was 148.8 MB. Max. memory is 11.5 GB. [2018-11-28 11:44:41,494 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:44:41,494 INFO L168 Benchmark]: CACSL2BoogieTranslator took 133.50 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.3 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. [2018-11-28 11:44:41,494 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.53 ms. Allocated memory is still 1.0 GB. Free memory is still 942.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:44:41,495 INFO L168 Benchmark]: Boogie Preprocessor took 9.96 ms. Allocated memory is still 1.0 GB. Free memory is still 942.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:44:41,495 INFO L168 Benchmark]: RCFGBuilder took 167.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 942.3 MB in the beginning and 1.1 GB in the end (delta: -170.9 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2018-11-28 11:44:41,495 INFO L168 Benchmark]: TraceAbstraction took 1349.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 931.9 MB in the end (delta: 181.3 MB). Peak memory consumption was 181.3 MB. Max. memory is 11.5 GB. [2018-11-28 11:44:41,496 INFO L168 Benchmark]: Witness Printer took 40.28 ms. Allocated memory is still 1.2 GB. Free memory was 931.9 MB in the beginning and 929.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 11:44:41,498 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 133.50 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.3 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.53 ms. Allocated memory is still 1.0 GB. Free memory is still 942.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 9.96 ms. Allocated memory is still 1.0 GB. Free memory is still 942.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 167.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 942.3 MB in the beginning and 1.1 GB in the end (delta: -170.9 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1349.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 931.9 MB in the end (delta: 181.3 MB). Peak memory consumption was 181.3 MB. Max. memory is 11.5 GB. * Witness Printer took 40.28 ms. Allocated memory is still 1.2 GB. Free memory was 931.9 MB in the beginning and 929.2 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: 15]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. SAFE Result, 1.3s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 116 SDtfs, 16 SDslu, 609 SDs, 0 SdLazy, 187 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 130 GetRequests, 82 SyntacticMatches, 4 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 7 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 222 NumberOfCodeBlocks, 208 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 213 ConstructedInterpolants, 0 QuantifiedInterpolants, 15747 SizeOfPredicates, 7 NumberOfNonLiveVariables, 150 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 91/123 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...