./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/mannadiv.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_05ed88d4-db8e-4f92-90e8-ab11d8c247f8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_05ed88d4-db8e-4f92-90e8-ab11d8c247f8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_05ed88d4-db8e-4f92-90e8-ab11d8c247f8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_05ed88d4-db8e-4f92-90e8-ab11d8c247f8/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench/mannadiv.c -s /tmp/vcloud-vcloud-master/worker/working_dir_05ed88d4-db8e-4f92-90e8-ab11d8c247f8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_05ed88d4-db8e-4f92-90e8-ab11d8c247f8/bin/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 ce198381268ae62b0b3165f113c34ecdcd255d33 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:02:50,812 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:02:50,814 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:02:50,823 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:02:50,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:02:50,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:02:50,825 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:02:50,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:02:50,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:02:50,828 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:02:50,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:02:50,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:02:50,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:02:50,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:02:50,831 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:02:50,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:02:50,833 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:02:50,833 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:02:50,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:02:50,836 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:02:50,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:02:50,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:02:50,839 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:02:50,839 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:02:50,842 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:02:50,842 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:02:50,843 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:02:50,843 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:02:50,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:02:50,844 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:02:50,844 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:02:50,845 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:02:50,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:02:50,846 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:02:50,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:02:50,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:02:50,847 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:02:50,847 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:02:50,848 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:02:50,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:02:50,850 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:02:50,851 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_05ed88d4-db8e-4f92-90e8-ab11d8c247f8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 09:02:50,862 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:02:50,865 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:02:50,866 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:02:50,867 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:02:50,867 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:02:50,867 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:02:50,867 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:02:50,867 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:02:50,867 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:02:50,868 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:02:50,868 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:02:50,868 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:02:50,868 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:02:50,868 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:02:50,869 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:02:50,869 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:02:50,869 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:02:50,869 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:02:50,869 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:02:50,869 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:02:50,870 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:02:50,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:02:50,870 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:02:50,870 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:02:50,870 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:02:50,870 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:02:50,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:02:50,871 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:02:50,871 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_05ed88d4-db8e-4f92-90e8-ab11d8c247f8/bin/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 -> ce198381268ae62b0b3165f113c34ecdcd255d33 [2019-10-22 09:02:50,911 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:02:50,923 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:02:50,926 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:02:50,927 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:02:50,927 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:02:50,928 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_05ed88d4-db8e-4f92-90e8-ab11d8c247f8/bin/uautomizer/../../sv-benchmarks/c/nla-digbench/mannadiv.c [2019-10-22 09:02:50,979 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_05ed88d4-db8e-4f92-90e8-ab11d8c247f8/bin/uautomizer/data/abd51fa8b/da30fe5cc2a246b0a961279bb49e935c/FLAG49a5ade66 [2019-10-22 09:02:51,403 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:02:51,404 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_05ed88d4-db8e-4f92-90e8-ab11d8c247f8/sv-benchmarks/c/nla-digbench/mannadiv.c [2019-10-22 09:02:51,409 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_05ed88d4-db8e-4f92-90e8-ab11d8c247f8/bin/uautomizer/data/abd51fa8b/da30fe5cc2a246b0a961279bb49e935c/FLAG49a5ade66 [2019-10-22 09:02:51,808 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_05ed88d4-db8e-4f92-90e8-ab11d8c247f8/bin/uautomizer/data/abd51fa8b/da30fe5cc2a246b0a961279bb49e935c [2019-10-22 09:02:51,811 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:02:51,814 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:02:51,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:51,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:02:51,820 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:02:51,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:51" (1/1) ... [2019-10-22 09:02:51,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@250ff41f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:51, skipping insertion in model container [2019-10-22 09:02:51,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:51" (1/1) ... [2019-10-22 09:02:51,834 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:02:51,852 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:02:52,006 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:52,010 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:02:52,081 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:52,097 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:02:52,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:52 WrapperNode [2019-10-22 09:02:52,098 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:52,099 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:52,099 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:02:52,099 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:02:52,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:52" (1/1) ... [2019-10-22 09:02:52,113 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:52" (1/1) ... [2019-10-22 09:02:52,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:52,130 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:02:52,130 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:02:52,130 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:02:52,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:52" (1/1) ... [2019-10-22 09:02:52,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:52" (1/1) ... [2019-10-22 09:02:52,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:52" (1/1) ... [2019-10-22 09:02:52,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:52" (1/1) ... [2019-10-22 09:02:52,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:52" (1/1) ... [2019-10-22 09:02:52,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:52" (1/1) ... [2019-10-22 09:02:52,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:52" (1/1) ... [2019-10-22 09:02:52,148 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:02:52,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:02:52,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:02:52,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:02:52,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05ed88d4-db8e-4f92-90e8-ab11d8c247f8/bin/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 [2019-10-22 09:02:52,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:02:52,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:02:52,444 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:02:52,444 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-10-22 09:02:52,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:52 BoogieIcfgContainer [2019-10-22 09:02:52,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:02:52,446 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:02:52,446 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:02:52,449 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:02:52,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:02:51" (1/3) ... [2019-10-22 09:02:52,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c458fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:02:52, skipping insertion in model container [2019-10-22 09:02:52,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:52" (2/3) ... [2019-10-22 09:02:52,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c458fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:02:52, skipping insertion in model container [2019-10-22 09:02:52,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:52" (3/3) ... [2019-10-22 09:02:52,452 INFO L109 eAbstractionObserver]: Analyzing ICFG mannadiv.c [2019-10-22 09:02:52,468 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:02:52,474 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-10-22 09:02:52,484 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-10-22 09:02:52,506 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:02:52,506 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:02:52,506 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:02:52,507 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:02:52,507 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:02:52,507 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:02:52,507 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:02:52,507 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:02:52,524 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-10-22 09:02:52,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 09:02:52,531 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:52,532 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-10-22 09:02:52,534 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:52,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:52,539 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-10-22 09:02:52,546 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:52,546 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904936423] [2019-10-22 09:02:52,547 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:52,547 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:52,547 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:52,626 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-22 09:02:52,627 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1356603369] [2019-10-22 09:02:52,628 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05ed88d4-db8e-4f92-90e8-ab11d8c247f8/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:02:52,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:52,677 WARN L254 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-22 09:02:52,681 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:52,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:52,758 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904936423] [2019-10-22 09:02:52,758 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-22 09:02:52,758 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356603369] [2019-10-22 09:02:52,759 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:52,759 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:02:52,761 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651419642] [2019-10-22 09:02:52,765 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:02:52,765 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:52,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:02:52,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:02:52,779 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 4 states. [2019-10-22 09:02:52,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:52,853 INFO L93 Difference]: Finished difference Result 42 states and 59 transitions. [2019-10-22 09:02:52,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 09:02:52,855 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-10-22 09:02:52,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:52,863 INFO L225 Difference]: With dead ends: 42 [2019-10-22 09:02:52,864 INFO L226 Difference]: Without dead ends: 20 [2019-10-22 09:02:52,866 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:02:52,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-10-22 09:02:52,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 13. [2019-10-22 09:02:52,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-10-22 09:02:52,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2019-10-22 09:02:52,893 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 4 [2019-10-22 09:02:52,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:52,893 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2019-10-22 09:02:52,894 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:02:52,894 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2019-10-22 09:02:52,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 09:02:52,894 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:52,894 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:53,095 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:02:53,095 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:53,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:53,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1361018346, now seen corresponding path program 1 times [2019-10-22 09:02:53,096 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:53,096 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518386427] [2019-10-22 09:02:53,096 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:53,096 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:53,096 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:53,103 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-22 09:02:53,103 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [51843370] [2019-10-22 09:02:53,103 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05ed88d4-db8e-4f92-90e8-ab11d8c247f8/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:02:53,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:53,134 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-22 09:02:53,135 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:53,165 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:02:53,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:53,178 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518386427] [2019-10-22 09:02:53,178 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-22 09:02:53,179 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51843370] [2019-10-22 09:02:53,179 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:53,179 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:02:53,179 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818996382] [2019-10-22 09:02:53,180 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:02:53,181 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:53,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:02:53,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:02:53,181 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand 5 states. [2019-10-22 09:02:53,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:53,244 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2019-10-22 09:02:53,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 09:02:53,245 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-10-22 09:02:53,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:53,247 INFO L225 Difference]: With dead ends: 19 [2019-10-22 09:02:53,247 INFO L226 Difference]: Without dead ends: 15 [2019-10-22 09:02:53,248 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:02:53,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-10-22 09:02:53,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2019-10-22 09:02:53,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-10-22 09:02:53,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2019-10-22 09:02:53,252 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 7 [2019-10-22 09:02:53,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:53,252 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2019-10-22 09:02:53,252 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:02:53,252 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2019-10-22 09:02:53,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 09:02:53,252 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:53,253 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:53,453 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:02:53,454 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:53,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:53,454 INFO L82 PathProgramCache]: Analyzing trace with hash 759715009, now seen corresponding path program 1 times [2019-10-22 09:02:53,454 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:53,454 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292215428] [2019-10-22 09:02:53,454 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:53,455 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:53,455 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:53,460 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-22 09:02:53,461 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1852037136] [2019-10-22 09:02:53,461 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05ed88d4-db8e-4f92-90e8-ab11d8c247f8/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:02:53,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:53,487 WARN L254 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 21 conjunts are in the unsatisfiable core [2019-10-22 09:02:53,488 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:53,608 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:53,609 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292215428] [2019-10-22 09:02:53,609 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-22 09:02:53,609 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852037136] [2019-10-22 09:02:53,609 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-10-22 09:02:53,610 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2019-10-22 09:02:53,610 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998185444] [2019-10-22 09:02:53,610 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:02:53,610 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:53,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:02:53,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:02:53,611 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 5 states. [2019-10-22 09:02:53,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:53,695 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2019-10-22 09:02:53,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:02:53,695 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-10-22 09:02:53,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:53,696 INFO L225 Difference]: With dead ends: 34 [2019-10-22 09:02:53,696 INFO L226 Difference]: Without dead ends: 24 [2019-10-22 09:02:53,696 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:02:53,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-10-22 09:02:53,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 19. [2019-10-22 09:02:53,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-22 09:02:53,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2019-10-22 09:02:53,700 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 8 [2019-10-22 09:02:53,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:53,700 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2019-10-22 09:02:53,700 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:02:53,700 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2019-10-22 09:02:53,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 09:02:53,701 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:53,701 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:53,902 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:02:53,902 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:53,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:53,903 INFO L82 PathProgramCache]: Analyzing trace with hash 759774591, now seen corresponding path program 1 times [2019-10-22 09:02:53,903 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:53,903 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333766102] [2019-10-22 09:02:53,903 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:53,903 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:53,903 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:53,910 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-22 09:02:53,910 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1363532141] [2019-10-22 09:02:53,910 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05ed88d4-db8e-4f92-90e8-ab11d8c247f8/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:02:53,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:53,937 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 17 conjunts are in the unsatisfiable core [2019-10-22 09:02:53,938 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:53,976 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:53,976 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333766102] [2019-10-22 09:02:53,977 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-22 09:02:53,977 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363532141] [2019-10-22 09:02:53,977 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-10-22 09:02:53,977 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2019-10-22 09:02:53,977 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874210874] [2019-10-22 09:02:53,978 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:02:53,978 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:53,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:02:53,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:02:53,978 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand 5 states. [2019-10-22 09:02:54,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:54,051 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2019-10-22 09:02:54,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:02:54,051 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-10-22 09:02:54,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:54,052 INFO L225 Difference]: With dead ends: 30 [2019-10-22 09:02:54,052 INFO L226 Difference]: Without dead ends: 28 [2019-10-22 09:02:54,052 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:02:54,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-10-22 09:02:54,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 21. [2019-10-22 09:02:54,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-10-22 09:02:54,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2019-10-22 09:02:54,056 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 8 [2019-10-22 09:02:54,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:54,057 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2019-10-22 09:02:54,057 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:02:54,057 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2019-10-22 09:02:54,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 09:02:54,057 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:54,058 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:54,258 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:02:54,259 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:54,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:54,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1802926015, now seen corresponding path program 1 times [2019-10-22 09:02:54,259 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:54,259 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761495368] [2019-10-22 09:02:54,259 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:54,260 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:54,260 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:54,264 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-22 09:02:54,264 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1511834522] [2019-10-22 09:02:54,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05ed88d4-db8e-4f92-90e8-ab11d8c247f8/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:02:54,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:54,293 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 14 conjunts are in the unsatisfiable core [2019-10-22 09:02:54,294 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:54,322 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:02:54,348 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 09:02:54,348 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761495368] [2019-10-22 09:02:54,348 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-22 09:02:54,348 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511834522] [2019-10-22 09:02:54,348 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:54,348 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 09:02:54,349 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991398498] [2019-10-22 09:02:54,349 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 09:02:54,349 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:54,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 09:02:54,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:02:54,350 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand 7 states. [2019-10-22 09:02:54,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:54,445 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2019-10-22 09:02:54,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 09:02:54,446 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2019-10-22 09:02:54,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:54,446 INFO L225 Difference]: With dead ends: 21 [2019-10-22 09:02:54,446 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 09:02:54,447 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2019-10-22 09:02:54,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 09:02:54,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 09:02:54,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 09:02:54,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 09:02:54,447 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-10-22 09:02:54,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:54,448 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:02:54,448 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 09:02:54,448 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:02:54,448 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 09:02:54,648 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:02:54,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 09:02:54,720 INFO L439 ceAbstractionStarter]: At program point L35-2(lines 30 43) the Hoare annotation is: (let ((.cse0 (<= 0 ULTIMATE.start_main_~x1~0))) (or (and .cse0 (= ULTIMATE.start_main_~y2~0 0) (= ULTIMATE.start_main_~y1~0 0) (= ULTIMATE.start_main_~x1~0 ULTIMATE.start_main_~y3~0)) (and (= ULTIMATE.start_main_~x1~0 (+ ULTIMATE.start_main_~y2~0 ULTIMATE.start_main_~y3~0 (* ULTIMATE.start_main_~y1~0 ULTIMATE.start_main_~x2~0))) .cse0 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)))) [2019-10-22 09:02:54,720 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 09:02:54,721 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2019-10-22 09:02:54,721 INFO L443 ceAbstractionStarter]: For program point L11(lines 11 14) no Hoare annotation was computed. [2019-10-22 09:02:54,721 INFO L439 ceAbstractionStarter]: At program point L11-2(line 33) the Hoare annotation is: (and (= ULTIMATE.start_main_~x1~0 (+ ULTIMATE.start_main_~y2~0 ULTIMATE.start_main_~y3~0 (* ULTIMATE.start_main_~y1~0 ULTIMATE.start_main_~x2~0))) (<= 0 ULTIMATE.start_main_~x1~0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) [2019-10-22 09:02:54,721 INFO L443 ceAbstractionStarter]: For program point L11-3(lines 11 14) no Hoare annotation was computed. [2019-10-22 09:02:54,721 INFO L446 ceAbstractionStarter]: At program point L11-5(lines 10 16) the Hoare annotation is: true [2019-10-22 09:02:54,721 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 09:02:54,722 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 09:02:54,722 INFO L443 ceAbstractionStarter]: For program point L30-2(lines 30 43) no Hoare annotation was computed. [2019-10-22 09:02:54,722 INFO L446 ceAbstractionStarter]: At program point L45(lines 17 46) the Hoare annotation is: true [2019-10-22 09:02:54,722 INFO L443 ceAbstractionStarter]: For program point L12(lines 12 13) no Hoare annotation was computed. [2019-10-22 09:02:54,722 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2019-10-22 09:02:54,722 INFO L443 ceAbstractionStarter]: For program point L12-1(lines 12 13) no Hoare annotation was computed. [2019-10-22 09:02:54,722 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 42) no Hoare annotation was computed. [2019-10-22 09:02:54,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:02:54 BoogieIcfgContainer [2019-10-22 09:02:54,736 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:02:54,736 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:02:54,736 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:02:54,736 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:02:54,737 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:52" (3/4) ... [2019-10-22 09:02:54,740 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 09:02:54,750 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-10-22 09:02:54,750 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 09:02:54,788 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_05ed88d4-db8e-4f92-90e8-ab11d8c247f8/bin/uautomizer/witness.graphml [2019-10-22 09:02:54,788 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:02:54,790 INFO L168 Benchmark]: Toolchain (without parser) took 2976.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 950.1 MB in the beginning and 940.0 MB in the end (delta: 10.1 MB). Peak memory consumption was 125.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:54,791 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:54,791 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -159.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:54,791 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.19 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:54,792 INFO L168 Benchmark]: Boogie Preprocessor took 18.34 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:54,792 INFO L168 Benchmark]: RCFGBuilder took 295.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:54,792 INFO L168 Benchmark]: TraceAbstraction took 2289.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 940.0 MB in the end (delta: 142.4 MB). Peak memory consumption was 142.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:54,793 INFO L168 Benchmark]: Witness Printer took 52.31 ms. Allocated memory is still 1.1 GB. Free memory is still 940.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:54,795 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 283.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -159.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.19 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.34 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 295.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2289.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 940.0 MB in the end (delta: 142.4 MB). Peak memory consumption was 142.4 MB. Max. memory is 11.5 GB. * Witness Printer took 52.31 ms. Allocated memory is still 1.1 GB. Free memory is still 940.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((0 <= x1 && y2 == 0) && y1 == 0) && x1 == y3) || ((x1 == y2 + y3 + y1 * x2 && 0 <= x1) && 1 == cond) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: (x1 == y2 + y3 + y1 * x2 && 0 <= x1) && 1 == cond - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 2 error locations. Result: SAFE, OverallTime: 2.2s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 32 SDtfs, 47 SDslu, 68 SDs, 0 SdLazy, 137 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 20 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 15 NumberOfFragments, 46 HoareAnnotationTreeSize, 4 FomulaSimplifications, 112 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 11 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 2122 SizeOfPredicates, 37 NumberOfNonLiveVariables, 178 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 3/7 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...