./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows 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_2c641e71-9ead-4596-9d0e-9b3f70147ec2/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2c641e71-9ead-4596-9d0e-9b3f70147ec2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2c641e71-9ead-4596-9d0e-9b3f70147ec2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2c641e71-9ead-4596-9d0e-9b3f70147ec2/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2c641e71-9ead-4596-9d0e-9b3f70147ec2/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2c641e71-9ead-4596-9d0e-9b3f70147ec2/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1b43ce72b37c8e17b4dbab62d6d09279867a7da3 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 16:10:07,821 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:10:07,822 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:10:07,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:10:07,830 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:10:07,830 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:10:07,831 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:10:07,832 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:10:07,834 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:10:07,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:10:07,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:10:07,836 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:10:07,836 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:10:07,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:10:07,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:10:07,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:10:07,839 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:10:07,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:10:07,840 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:10:07,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:10:07,843 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:10:07,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:10:07,844 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:10:07,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:10:07,847 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:10:07,847 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:10:07,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:10:07,847 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:10:07,848 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:10:07,848 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:10:07,848 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:10:07,849 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:10:07,849 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:10:07,850 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:10:07,850 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:10:07,850 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:10:07,851 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:10:07,851 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:10:07,851 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:10:07,852 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:10:07,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:10:07,853 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2c641e71-9ead-4596-9d0e-9b3f70147ec2/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-12-07 16:10:07,861 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:10:07,862 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:10:07,862 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:10:07,863 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:10:07,863 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 16:10:07,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:10:07,863 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 16:10:07,863 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:10:07,863 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:10:07,863 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:10:07,863 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:10:07,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:10:07,864 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-12-07 16:10:07,864 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:10:07,864 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:10:07,864 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:10:07,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:10:07,864 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:10:07,864 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:10:07,864 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:10:07,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:10:07,865 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:10:07,865 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:10:07,865 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:10:07,865 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 16:10:07,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 16:10:07,865 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:10:07,866 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:10:07,866 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_2c641e71-9ead-4596-9d0e-9b3f70147ec2/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 ! overflow) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b43ce72b37c8e17b4dbab62d6d09279867a7da3 [2019-12-07 16:10:07,963 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:10:07,972 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:10:07,974 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:10:07,975 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:10:07,975 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:10:07,976 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2c641e71-9ead-4596-9d0e-9b3f70147ec2/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.c [2019-12-07 16:10:08,016 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2c641e71-9ead-4596-9d0e-9b3f70147ec2/bin/uautomizer/data/878c5715d/19ddff16af6849c28682f019ef517b5a/FLAGcc5eb8009 [2019-12-07 16:10:08,394 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:10:08,394 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2c641e71-9ead-4596-9d0e-9b3f70147ec2/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.c [2019-12-07 16:10:08,398 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2c641e71-9ead-4596-9d0e-9b3f70147ec2/bin/uautomizer/data/878c5715d/19ddff16af6849c28682f019ef517b5a/FLAGcc5eb8009 [2019-12-07 16:10:08,407 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2c641e71-9ead-4596-9d0e-9b3f70147ec2/bin/uautomizer/data/878c5715d/19ddff16af6849c28682f019ef517b5a [2019-12-07 16:10:08,409 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:10:08,410 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:10:08,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:10:08,411 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:10:08,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:10:08,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:10:08" (1/1) ... [2019-12-07 16:10:08,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a8ebb28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:08, skipping insertion in model container [2019-12-07 16:10:08,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:10:08" (1/1) ... [2019-12-07 16:10:08,420 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:10:08,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:10:08,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:10:08,533 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:10:08,574 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:10:08,583 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:10:08,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:08 WrapperNode [2019-12-07 16:10:08,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:10:08,584 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:10:08,584 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:10:08,584 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:10:08,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:08" (1/1) ... [2019-12-07 16:10:08,593 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:08" (1/1) ... [2019-12-07 16:10:08,604 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:10:08,604 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:10:08,605 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:10:08,605 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:10:08,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:08" (1/1) ... [2019-12-07 16:10:08,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:08" (1/1) ... [2019-12-07 16:10:08,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:08" (1/1) ... [2019-12-07 16:10:08,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:08" (1/1) ... [2019-12-07 16:10:08,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:08" (1/1) ... [2019-12-07 16:10:08,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:08" (1/1) ... [2019-12-07 16:10:08,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:08" (1/1) ... [2019-12-07 16:10:08,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:10:08,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:10:08,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:10:08,616 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:10:08,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2c641e71-9ead-4596-9d0e-9b3f70147ec2/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 16:10:08,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:10:08,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:10:08,754 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:10:08,755 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 16:10:08,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:10:08 BoogieIcfgContainer [2019-12-07 16:10:08,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:10:08,756 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:10:08,756 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:10:08,758 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:10:08,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:10:08" (1/3) ... [2019-12-07 16:10:08,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aab5f0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:10:08, skipping insertion in model container [2019-12-07 16:10:08,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:08" (2/3) ... [2019-12-07 16:10:08,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aab5f0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:10:08, skipping insertion in model container [2019-12-07 16:10:08,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:10:08" (3/3) ... [2019-12-07 16:10:08,761 INFO L109 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-loops.c [2019-12-07 16:10:08,770 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:10:08,775 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-12-07 16:10:08,783 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-07 16:10:08,797 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:10:08,797 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 16:10:08,797 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:10:08,797 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:10:08,797 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:10:08,798 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:10:08,798 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:10:08,798 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:10:08,807 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-12-07 16:10:08,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 16:10:08,810 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:10:08,811 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 16:10:08,811 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:10:08,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:10:08,815 INFO L82 PathProgramCache]: Analyzing trace with hash 29685419, now seen corresponding path program 1 times [2019-12-07 16:10:08,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:10:08,820 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327206192] [2019-12-07 16:10:08,820 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:10:08,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:10:08,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:10:08,912 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327206192] [2019-12-07 16:10:08,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:10:08,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 16:10:08,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977829593] [2019-12-07 16:10:08,917 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 16:10:08,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:10:08,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:10:08,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:10:08,927 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2019-12-07 16:10:08,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:10:08,957 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2019-12-07 16:10:08,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:10:08,959 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-07 16:10:08,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:10:08,964 INFO L225 Difference]: With dead ends: 35 [2019-12-07 16:10:08,965 INFO L226 Difference]: Without dead ends: 12 [2019-12-07 16:10:08,967 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:10:08,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-07 16:10:08,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-07 16:10:08,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-07 16:10:08,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-12-07 16:10:08,987 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 5 [2019-12-07 16:10:08,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:10:08,987 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-12-07 16:10:08,988 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 16:10:08,988 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-12-07 16:10:08,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 16:10:08,988 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:10:08,988 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 16:10:08,988 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:10:08,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:10:08,989 INFO L82 PathProgramCache]: Analyzing trace with hash 920230376, now seen corresponding path program 1 times [2019-12-07 16:10:08,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:10:08,989 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570807135] [2019-12-07 16:10:08,989 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:10:08,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:10:09,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:10:09,007 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570807135] [2019-12-07 16:10:09,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:10:09,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 16:10:09,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942215554] [2019-12-07 16:10:09,008 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 16:10:09,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:10:09,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:10:09,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:10:09,009 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 3 states. [2019-12-07 16:10:09,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:10:09,029 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2019-12-07 16:10:09,029 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:10:09,030 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-12-07 16:10:09,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:10:09,030 INFO L225 Difference]: With dead ends: 20 [2019-12-07 16:10:09,030 INFO L226 Difference]: Without dead ends: 19 [2019-12-07 16:10:09,031 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:10:09,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-12-07 16:10:09,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 14. [2019-12-07 16:10:09,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-07 16:10:09,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2019-12-07 16:10:09,034 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 6 [2019-12-07 16:10:09,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:10:09,034 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 17 transitions. [2019-12-07 16:10:09,034 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 16:10:09,034 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2019-12-07 16:10:09,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 16:10:09,034 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:10:09,034 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 16:10:09,035 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:10:09,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:10:09,035 INFO L82 PathProgramCache]: Analyzing trace with hash 920248058, now seen corresponding path program 1 times [2019-12-07 16:10:09,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:10:09,035 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064350447] [2019-12-07 16:10:09,035 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:10:09,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:10:09,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:10:09,052 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064350447] [2019-12-07 16:10:09,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:10:09,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 16:10:09,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705873156] [2019-12-07 16:10:09,052 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 16:10:09,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:10:09,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:10:09,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:10:09,053 INFO L87 Difference]: Start difference. First operand 14 states and 17 transitions. Second operand 3 states. [2019-12-07 16:10:09,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:10:09,068 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2019-12-07 16:10:09,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:10:09,069 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-12-07 16:10:09,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:10:09,069 INFO L225 Difference]: With dead ends: 15 [2019-12-07 16:10:09,069 INFO L226 Difference]: Without dead ends: 14 [2019-12-07 16:10:09,069 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:10:09,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-12-07 16:10:09,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2019-12-07 16:10:09,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-12-07 16:10:09,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2019-12-07 16:10:09,072 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 6 [2019-12-07 16:10:09,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:10:09,072 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2019-12-07 16:10:09,073 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 16:10:09,073 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2019-12-07 16:10:09,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 16:10:09,073 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:10:09,073 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:10:09,073 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:10:09,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:10:09,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1537629357, now seen corresponding path program 1 times [2019-12-07 16:10:09,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:10:09,074 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039911410] [2019-12-07 16:10:09,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:10:09,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:10:09,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:10:09,091 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039911410] [2019-12-07 16:10:09,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:10:09,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 16:10:09,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857962219] [2019-12-07 16:10:09,091 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 16:10:09,092 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:10:09,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:10:09,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:10:09,092 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 3 states. [2019-12-07 16:10:09,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:10:09,104 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2019-12-07 16:10:09,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:10:09,104 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-07 16:10:09,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:10:09,105 INFO L225 Difference]: With dead ends: 14 [2019-12-07 16:10:09,105 INFO L226 Difference]: Without dead ends: 13 [2019-12-07 16:10:09,105 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:10:09,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-12-07 16:10:09,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2019-12-07 16:10:09,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-07 16:10:09,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2019-12-07 16:10:09,107 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 15 transitions. Word has length 7 [2019-12-07 16:10:09,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:10:09,108 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 15 transitions. [2019-12-07 16:10:09,108 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 16:10:09,108 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2019-12-07 16:10:09,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 16:10:09,108 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:10:09,108 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:10:09,108 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:10:09,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:10:09,108 INFO L82 PathProgramCache]: Analyzing trace with hash -193060491, now seen corresponding path program 1 times [2019-12-07 16:10:09,109 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:10:09,109 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899985759] [2019-12-07 16:10:09,109 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:10:09,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:10:09,137 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 16:10:09,137 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899985759] [2019-12-07 16:10:09,137 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639518702] [2019-12-07 16:10:09,137 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2c641e71-9ead-4596-9d0e-9b3f70147ec2/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 16:10:09,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:10:09,159 INFO L264 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 16:10:09,162 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:10:09,180 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 16:10:09,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 16:10:09,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2019-12-07 16:10:09,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145890814] [2019-12-07 16:10:09,181 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 16:10:09,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:10:09,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 16:10:09,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:10:09,182 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. Second operand 4 states. [2019-12-07 16:10:09,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:10:09,208 INFO L93 Difference]: Finished difference Result 23 states and 27 transitions. [2019-12-07 16:10:09,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 16:10:09,208 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-07 16:10:09,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:10:09,208 INFO L225 Difference]: With dead ends: 23 [2019-12-07 16:10:09,209 INFO L226 Difference]: Without dead ends: 22 [2019-12-07 16:10:09,209 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:10:09,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-07 16:10:09,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 15. [2019-12-07 16:10:09,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-07 16:10:09,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2019-12-07 16:10:09,212 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 19 transitions. Word has length 9 [2019-12-07 16:10:09,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:10:09,212 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 19 transitions. [2019-12-07 16:10:09,212 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 16:10:09,212 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2019-12-07 16:10:09,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 16:10:09,213 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:10:09,213 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1] [2019-12-07 16:10:09,414 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 16:10:09,415 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:10:09,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:10:09,416 INFO L82 PathProgramCache]: Analyzing trace with hash -503819576, now seen corresponding path program 2 times [2019-12-07 16:10:09,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:10:09,417 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901780444] [2019-12-07 16:10:09,417 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:10:09,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:10:09,472 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 16:10:09,472 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901780444] [2019-12-07 16:10:09,472 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095988510] [2019-12-07 16:10:09,472 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2c641e71-9ead-4596-9d0e-9b3f70147ec2/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 16:10:09,492 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-12-07 16:10:09,492 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 16:10:09,493 INFO L264 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 16:10:09,493 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:10:09,496 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 16:10:09,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 16:10:09,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2019-12-07 16:10:09,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110846038] [2019-12-07 16:10:09,497 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 16:10:09,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:10:09,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 16:10:09,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:10:09,497 INFO L87 Difference]: Start difference. First operand 15 states and 19 transitions. Second operand 4 states. [2019-12-07 16:10:09,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:10:09,521 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2019-12-07 16:10:09,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 16:10:09,522 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-12-07 16:10:09,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:10:09,522 INFO L225 Difference]: With dead ends: 18 [2019-12-07 16:10:09,522 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 16:10:09,522 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 16:10:09,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 16:10:09,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 16:10:09,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 16:10:09,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 16:10:09,523 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2019-12-07 16:10:09,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:10:09,523 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:10:09,523 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 16:10:09,523 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 16:10:09,523 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 16:10:09,724 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 16:10:09,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 16:10:09,783 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2019-12-07 16:10:09,783 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 16:10:09,783 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2019-12-07 16:10:09,783 INFO L249 CegarLoopResult]: At program point L29(lines 13 30) the Hoare annotation is: true [2019-12-07 16:10:09,783 INFO L246 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2019-12-07 16:10:09,783 INFO L246 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2019-12-07 16:10:09,783 INFO L246 CegarLoopResult]: For program point L21(lines 21 25) no Hoare annotation was computed. [2019-12-07 16:10:09,783 INFO L246 CegarLoopResult]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2019-12-07 16:10:09,783 INFO L242 CegarLoopResult]: At program point L19-2(lines 19 27) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 1073741823) [2019-12-07 16:10:09,784 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2019-12-07 16:10:09,784 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2019-12-07 16:10:09,784 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 16:10:09,784 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 16:10:09,784 INFO L246 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2019-12-07 16:10:09,784 INFO L242 CegarLoopResult]: At program point L22-2(lines 22 24) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~x~0 1073741823) (<= 0 ULTIMATE.start_main_~x~0)) [2019-12-07 16:10:09,784 INFO L246 CegarLoopResult]: For program point L18(lines 18 28) no Hoare annotation was computed. [2019-12-07 16:10:09,784 INFO L246 CegarLoopResult]: For program point L18-1(lines 18 28) no Hoare annotation was computed. [2019-12-07 16:10:09,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 04:10:09 BoogieIcfgContainer [2019-12-07 16:10:09,797 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 16:10:09,797 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:10:09,797 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:10:09,797 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:10:09,797 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:10:08" (3/4) ... [2019-12-07 16:10:09,800 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 16:10:09,806 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 16:10:09,806 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 16:10:09,834 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2c641e71-9ead-4596-9d0e-9b3f70147ec2/bin/uautomizer/witness.graphml [2019-12-07 16:10:09,834 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:10:09,835 INFO L168 Benchmark]: Toolchain (without parser) took 1425.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 939.9 MB in the beginning and 1.0 GB in the end (delta: -63.9 MB). Peak memory consumption was 40.4 MB. Max. memory is 11.5 GB. [2019-12-07 16:10:09,836 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 956.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:10:09,836 INFO L168 Benchmark]: CACSL2BoogieTranslator took 173.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -159.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 16:10:09,837 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.25 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. [2019-12-07 16:10:09,837 INFO L168 Benchmark]: Boogie Preprocessor took 11.67 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. [2019-12-07 16:10:09,837 INFO L168 Benchmark]: RCFGBuilder took 139.20 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: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-12-07 16:10:09,838 INFO L168 Benchmark]: TraceAbstraction took 1040.60 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 73.5 MB). Peak memory consumption was 73.5 MB. Max. memory is 11.5 GB. [2019-12-07 16:10:09,838 INFO L168 Benchmark]: Witness Printer took 37.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 16:10:09,840 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 956.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 173.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -159.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.25 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 11.67 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 139.20 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: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1040.60 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 73.5 MB). Peak memory consumption was 73.5 MB. Max. memory is 11.5 GB. * Witness Printer took 37.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: x <= 1073741823 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (1 <= y && x <= 1073741823) && 0 <= x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 4 error locations. Result: SAFE, OverallTime: 0.9s, OverallIterations: 6, TraceHistogramMax: 3, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 42 SDtfs, 52 SDslu, 15 SDs, 0 SdLazy, 75 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, 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, 6 MinimizatonAttempts, 14 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 10 NumberOfFragments, 14 HoareAnnotationTreeSize, 3 FomulaSimplifications, 391 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 66 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 1246 SizeOfPredicates, 1 NumberOfNonLiveVariables, 45 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 10/18 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...