./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/afterrec-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4f09e105-ad5e-4df7-bed5-c383818bf006/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_4f09e105-ad5e-4df7-bed5-c383818bf006/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4f09e105-ad5e-4df7-bed5-c383818bf006/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4f09e105-ad5e-4df7-bed5-c383818bf006/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/afterrec-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4f09e105-ad5e-4df7-bed5-c383818bf006/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4f09e105-ad5e-4df7-bed5-c383818bf006/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 e8f83f4c04fbac90273b8f8e733ac05d1463068f ........................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 10:13:21,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:13:21,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:13:21,684 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:13:21,684 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:13:21,684 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:13:21,685 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:13:21,687 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:13:21,688 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:13:21,689 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:13:21,689 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:13:21,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:13:21,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:13:21,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:13:21,691 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:13:21,692 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:13:21,693 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:13:21,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:13:21,695 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:13:21,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:13:21,697 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:13:21,698 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:13:21,698 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:13:21,699 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:13:21,701 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:13:21,701 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:13:21,701 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:13:21,701 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:13:21,702 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:13:21,702 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:13:21,702 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:13:21,703 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:13:21,703 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:13:21,703 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:13:21,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:13:21,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:13:21,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:13:21,705 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:13:21,705 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:13:21,705 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:13:21,706 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:13:21,706 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4f09e105-ad5e-4df7-bed5-c383818bf006/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 10:13:21,716 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:13:21,716 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:13:21,716 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 10:13:21,717 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 10:13:21,717 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 10:13:21,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:13:21,717 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:13:21,717 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:13:21,717 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:13:21,717 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:13:21,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 10:13:21,718 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:13:21,718 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 10:13:21,718 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:13:21,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:13:21,718 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:13:21,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 10:13:21,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:13:21,719 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:13:21,719 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:13:21,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:13:21,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:13:21,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:13:21,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:13:21,719 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 10:13:21,719 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 10:13:21,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 10:13:21,720 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 10:13:21,720 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:13:21,720 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/run_dir_4f09e105-ad5e-4df7-bed5-c383818bf006/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 -> e8f83f4c04fbac90273b8f8e733ac05d1463068f [2019-12-07 10:13:21,820 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:13:21,828 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:13:21,830 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:13:21,831 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:13:21,832 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:13:21,832 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4f09e105-ad5e-4df7-bed5-c383818bf006/bin/uautomizer/../../sv-benchmarks/c/recursive-simple/afterrec-1.c [2019-12-07 10:13:21,871 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4f09e105-ad5e-4df7-bed5-c383818bf006/bin/uautomizer/data/3533929d6/9d8a5c4af29f49768232bb7fd92dc782/FLAG4966ec7dc [2019-12-07 10:13:22,185 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:13:22,185 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4f09e105-ad5e-4df7-bed5-c383818bf006/sv-benchmarks/c/recursive-simple/afterrec-1.c [2019-12-07 10:13:22,188 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4f09e105-ad5e-4df7-bed5-c383818bf006/bin/uautomizer/data/3533929d6/9d8a5c4af29f49768232bb7fd92dc782/FLAG4966ec7dc [2019-12-07 10:13:22,197 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4f09e105-ad5e-4df7-bed5-c383818bf006/bin/uautomizer/data/3533929d6/9d8a5c4af29f49768232bb7fd92dc782 [2019-12-07 10:13:22,198 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:13:22,199 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:13:22,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:13:22,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:13:22,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:13:22,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:13:22" (1/1) ... [2019-12-07 10:13:22,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f07a7aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:13:22, skipping insertion in model container [2019-12-07 10:13:22,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:13:22" (1/1) ... [2019-12-07 10:13:22,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:13:22,220 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:13:22,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:13:22,321 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:13:22,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:13:22,372 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:13:22,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:13:22 WrapperNode [2019-12-07 10:13:22,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:13:22,374 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:13:22,374 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:13:22,374 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:13:22,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:13:22" (1/1) ... [2019-12-07 10:13:22,383 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:13:22" (1/1) ... [2019-12-07 10:13:22,395 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:13:22,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:13:22,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:13:22,395 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:13:22,401 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:13:22" (1/1) ... [2019-12-07 10:13:22,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:13:22" (1/1) ... [2019-12-07 10:13:22,401 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:13:22" (1/1) ... [2019-12-07 10:13:22,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:13:22" (1/1) ... [2019-12-07 10:13:22,403 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:13:22" (1/1) ... [2019-12-07 10:13:22,404 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:13:22" (1/1) ... [2019-12-07 10:13:22,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:13:22" (1/1) ... [2019-12-07 10:13:22,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:13:22,405 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:13:22,405 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:13:22,405 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:13:22,406 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:13:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f09e105-ad5e-4df7-bed5-c383818bf006/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 [2019-12-07 10:13:22,446 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-12-07 10:13:22,446 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-12-07 10:13:22,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:13:22,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:13:22,529 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:13:22,529 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 10:13:22,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:13:22 BoogieIcfgContainer [2019-12-07 10:13:22,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:13:22,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 10:13:22,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 10:13:22,533 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 10:13:22,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 10:13:22" (1/3) ... [2019-12-07 10:13:22,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35b8ae02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:13:22, skipping insertion in model container [2019-12-07 10:13:22,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:13:22" (2/3) ... [2019-12-07 10:13:22,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35b8ae02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:13:22, skipping insertion in model container [2019-12-07 10:13:22,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:13:22" (3/3) ... [2019-12-07 10:13:22,535 INFO L109 eAbstractionObserver]: Analyzing ICFG afterrec-1.c [2019-12-07 10:13:22,541 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 10:13:22,546 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 10:13:22,553 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 10:13:22,567 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 10:13:22,567 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 10:13:22,567 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 10:13:22,567 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:13:22,567 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:13:22,568 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 10:13:22,568 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:13:22,568 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 10:13:22,579 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-12-07 10:13:22,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 10:13:22,583 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:13:22,583 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:13:22,583 INFO L410 AbstractCegarLoop]: === Iteration 1 === [fErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:13:22,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:13:22,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1875137816, now seen corresponding path program 1 times [2019-12-07 10:13:22,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:13:22,593 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063915373] [2019-12-07 10:13:22,593 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:13:22,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:13:22,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:13:22,737 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:13:22,738 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063915373] [2019-12-07 10:13:22,738 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755304352] [2019-12-07 10:13:22,738 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f09e105-ad5e-4df7-bed5-c383818bf006/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 [2019-12-07 10:13:22,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:13:22,765 INFO L264 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 10:13:22,769 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:13:22,800 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:13:22,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 10:13:22,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2019-12-07 10:13:22,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587470351] [2019-12-07 10:13:22,805 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 10:13:22,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:13:22,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 10:13:22,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-07 10:13:22,816 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 8 states. [2019-12-07 10:13:22,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:13:22,896 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2019-12-07 10:13:22,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 10:13:22,898 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2019-12-07 10:13:22,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:13:22,906 INFO L225 Difference]: With dead ends: 19 [2019-12-07 10:13:22,906 INFO L226 Difference]: Without dead ends: 12 [2019-12-07 10:13:22,908 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2019-12-07 10:13:22,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-07 10:13:22,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-07 10:13:22,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-07 10:13:22,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-12-07 10:13:22,934 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2019-12-07 10:13:22,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:13:22,934 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-12-07 10:13:22,934 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 10:13:22,934 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-12-07 10:13:22,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 10:13:22,935 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:13:22,935 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1] [2019-12-07 10:13:23,136 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 10:13:23,137 INFO L410 AbstractCegarLoop]: === Iteration 2 === [fErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:13:23,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:13:23,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1932067944, now seen corresponding path program 2 times [2019-12-07 10:13:23,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:13:23,139 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63392018] [2019-12-07 10:13:23,140 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:13:23,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:13:23,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:13:23,226 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:13:23,227 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63392018] [2019-12-07 10:13:23,227 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265546612] [2019-12-07 10:13:23,227 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f09e105-ad5e-4df7-bed5-c383818bf006/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 [2019-12-07 10:13:23,247 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 10:13:23,247 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 10:13:23,247 INFO L264 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 10:13:23,249 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:13:23,255 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:13:23,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 10:13:23,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 8 [2019-12-07 10:13:23,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708218336] [2019-12-07 10:13:23,256 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 10:13:23,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:13:23,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 10:13:23,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-12-07 10:13:23,257 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 8 states. [2019-12-07 10:13:23,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:13:23,309 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2019-12-07 10:13:23,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 10:13:23,310 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2019-12-07 10:13:23,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:13:23,310 INFO L225 Difference]: With dead ends: 23 [2019-12-07 10:13:23,310 INFO L226 Difference]: Without dead ends: 14 [2019-12-07 10:13:23,311 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2019-12-07 10:13:23,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-12-07 10:13:23,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-12-07 10:13:23,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-07 10:13:23,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2019-12-07 10:13:23,315 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 16 [2019-12-07 10:13:23,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:13:23,315 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2019-12-07 10:13:23,315 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 10:13:23,316 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2019-12-07 10:13:23,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 10:13:23,316 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:13:23,316 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1] [2019-12-07 10:13:23,517 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 10:13:23,518 INFO L410 AbstractCegarLoop]: === Iteration 3 === [fErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:13:23,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:13:23,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1336844716, now seen corresponding path program 3 times [2019-12-07 10:13:23,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:13:23,521 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167011078] [2019-12-07 10:13:23,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:13:23,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:13:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:13:23,581 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:13:23,581 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 10:13:23,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 10:13:23 BoogieIcfgContainer [2019-12-07 10:13:23,596 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 10:13:23,596 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:13:23,596 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:13:23,596 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:13:23,596 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:13:22" (3/4) ... [2019-12-07 10:13:23,598 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 10:13:23,624 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4f09e105-ad5e-4df7-bed5-c383818bf006/bin/uautomizer/witness.graphml [2019-12-07 10:13:23,624 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:13:23,625 INFO L168 Benchmark]: Toolchain (without parser) took 1425.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 944.6 MB in the beginning and 1.0 GB in the end (delta: -92.0 MB). Peak memory consumption was 34.4 MB. Max. memory is 11.5 GB. [2019-12-07 10:13:23,626 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:13:23,626 INFO L168 Benchmark]: CACSL2BoogieTranslator took 173.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -178.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 10:13:23,626 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:13:23,626 INFO L168 Benchmark]: Boogie Preprocessor took 10.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:13:23,627 INFO L168 Benchmark]: RCFGBuilder took 125.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2019-12-07 10:13:23,627 INFO L168 Benchmark]: TraceAbstraction took 1064.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 67.1 MB). Peak memory consumption was 67.1 MB. Max. memory is 11.5 GB. [2019-12-07 10:13:23,627 INFO L168 Benchmark]: Witness Printer took 28.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:13:23,629 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 173.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -178.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 125.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1064.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 67.1 MB). Peak memory consumption was 67.1 MB. Max. memory is 11.5 GB. * Witness Printer took 28.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L11] CALL f(4) VAL [\old(n)=4] [L4] COND FALSE !(n<3) [L5] n-- VAL [\old(n)=4, n=3] [L6] CALL f(n) VAL [\old(n)=3] [L4] COND FALSE !(n<3) [L5] n-- VAL [\old(n)=3, n=2] [L6] CALL f(n) VAL [\old(n)=2] [L4] COND TRUE n<3 VAL [\old(n)=2, n=2] [L6] RET f(n) VAL [\old(n)=3, n=2] [L7] __VERIFIER_error() VAL [\old(n)=3, n=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 12 locations, 1 error locations. Result: UNSAFE, OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 4, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 12 SDtfs, 22 SDslu, 22 SDs, 0 SdLazy, 53 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=2, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 1308 SizeOfPredicates, 6 NumberOfNonLiveVariables, 62 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 24/34 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 incorrect! Received shutdown request...