./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-2.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_06840365-11ac-4e95-b29b-37e3f41ed737/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_06840365-11ac-4e95-b29b-37e3f41ed737/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_06840365-11ac-4e95-b29b-37e3f41ed737/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_06840365-11ac-4e95-b29b-37e3f41ed737/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_06840365-11ac-4e95-b29b-37e3f41ed737/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_06840365-11ac-4e95-b29b-37e3f41ed737/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0a93871a8dae316852c5fe296af5e1db1eea1d37 ................................................................................................................................................................................................................................................................................................................................. 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 21:50:12,096 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 21:50:12,098 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 21:50:12,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 21:50:12,105 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 21:50:12,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 21:50:12,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 21:50:12,108 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 21:50:12,109 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 21:50:12,110 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 21:50:12,111 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 21:50:12,111 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 21:50:12,112 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 21:50:12,112 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 21:50:12,113 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 21:50:12,114 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 21:50:12,114 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 21:50:12,115 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 21:50:12,116 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 21:50:12,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 21:50:12,119 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 21:50:12,120 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 21:50:12,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 21:50:12,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 21:50:12,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 21:50:12,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 21:50:12,123 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 21:50:12,123 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 21:50:12,123 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 21:50:12,124 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 21:50:12,124 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 21:50:12,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 21:50:12,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 21:50:12,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 21:50:12,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 21:50:12,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 21:50:12,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 21:50:12,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 21:50:12,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 21:50:12,127 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 21:50:12,127 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 21:50:12,128 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_06840365-11ac-4e95-b29b-37e3f41ed737/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2019-12-07 21:50:12,137 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 21:50:12,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 21:50:12,138 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 21:50:12,138 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 21:50:12,138 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 21:50:12,138 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 21:50:12,138 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 21:50:12,138 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 21:50:12,139 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 21:50:12,139 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 21:50:12,139 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 21:50:12,139 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 21:50:12,139 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 21:50:12,139 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 21:50:12,139 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 21:50:12,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 21:50:12,140 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 21:50:12,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 21:50:12,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 21:50:12,140 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 21:50:12,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 21:50:12,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 21:50:12,141 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-12-07 21:50:12,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 21:50:12,141 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 21:50:12,141 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 21:50:12,141 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 21:50:12,141 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 21:50:12,141 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 21:50:12,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 21:50:12,142 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 21:50:12,142 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 21:50:12,142 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 21:50:12,142 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 21:50:12,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 21:50:12,142 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 21:50:12,142 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 21:50:12,143 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 21:50:12,143 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_06840365-11ac-4e95-b29b-37e3f41ed737/bin/utaipan 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 -> Taipan 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 -> 0a93871a8dae316852c5fe296af5e1db1eea1d37 [2019-12-07 21:50:12,245 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 21:50:12,255 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 21:50:12,258 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 21:50:12,259 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 21:50:12,260 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 21:50:12,260 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_06840365-11ac-4e95-b29b-37e3f41ed737/bin/utaipan/../../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-2.c [2019-12-07 21:50:12,300 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_06840365-11ac-4e95-b29b-37e3f41ed737/bin/utaipan/data/7ee9ab4e8/d6cd3a91043a410bbb1848e5d17d07c8/FLAG3889c27d6 [2019-12-07 21:50:12,650 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 21:50:12,651 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_06840365-11ac-4e95-b29b-37e3f41ed737/sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-2.c [2019-12-07 21:50:12,655 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_06840365-11ac-4e95-b29b-37e3f41ed737/bin/utaipan/data/7ee9ab4e8/d6cd3a91043a410bbb1848e5d17d07c8/FLAG3889c27d6 [2019-12-07 21:50:12,663 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_06840365-11ac-4e95-b29b-37e3f41ed737/bin/utaipan/data/7ee9ab4e8/d6cd3a91043a410bbb1848e5d17d07c8 [2019-12-07 21:50:12,665 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 21:50:12,666 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 21:50:12,667 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 21:50:12,667 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 21:50:12,669 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 21:50:12,669 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:50:12" (1/1) ... [2019-12-07 21:50:12,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d50c974 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:50:12, skipping insertion in model container [2019-12-07 21:50:12,671 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:50:12" (1/1) ... [2019-12-07 21:50:12,676 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 21:50:12,685 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 21:50:12,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:50:12,818 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 21:50:12,827 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:50:12,836 INFO L208 MainTranslator]: Completed translation [2019-12-07 21:50:12,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:50:12 WrapperNode [2019-12-07 21:50:12,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 21:50:12,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 21:50:12,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 21:50:12,837 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 21:50:12,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:50:12" (1/1) ... [2019-12-07 21:50:12,847 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:50:12" (1/1) ... [2019-12-07 21:50:12,858 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 21:50:12,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 21:50:12,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 21:50:12,858 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 21:50:12,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:50:12" (1/1) ... [2019-12-07 21:50:12,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:50:12" (1/1) ... [2019-12-07 21:50:12,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:50:12" (1/1) ... [2019-12-07 21:50:12,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:50:12" (1/1) ... [2019-12-07 21:50:12,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:50:12" (1/1) ... [2019-12-07 21:50:12,869 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:50:12" (1/1) ... [2019-12-07 21:50:12,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:50:12" (1/1) ... [2019-12-07 21:50:12,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 21:50:12,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 21:50:12,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 21:50:12,871 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 21:50:12,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:50:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_06840365-11ac-4e95-b29b-37e3f41ed737/bin/utaipan/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 21:50:12,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 21:50:12,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 21:50:12,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 21:50:12,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 21:50:12,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 21:50:13,033 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 21:50:13,033 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 21:50:13,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:50:13 BoogieIcfgContainer [2019-12-07 21:50:13,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 21:50:13,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 21:50:13,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 21:50:13,037 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 21:50:13,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 09:50:12" (1/3) ... [2019-12-07 21:50:13,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a001677 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:50:13, skipping insertion in model container [2019-12-07 21:50:13,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:50:12" (2/3) ... [2019-12-07 21:50:13,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a001677 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:50:13, skipping insertion in model container [2019-12-07 21:50:13,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:50:13" (3/3) ... [2019-12-07 21:50:13,040 INFO L109 eAbstractionObserver]: Analyzing ICFG SyntaxSupportPointer01-2.c [2019-12-07 21:50:13,049 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 21:50:13,054 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-07 21:50:13,065 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-07 21:50:13,080 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 21:50:13,080 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 21:50:13,080 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 21:50:13,080 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 21:50:13,080 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 21:50:13,080 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 21:50:13,080 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 21:50:13,080 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 21:50:13,089 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-12-07 21:50:13,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 21:50:13,093 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:50:13,094 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 21:50:13,094 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 21:50:13,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:50:13,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1645617, now seen corresponding path program 1 times [2019-12-07 21:50:13,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 21:50:13,104 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531235190] [2019-12-07 21:50:13,104 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 21:50:13,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:50:13,218 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 21:50:13,219 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531235190] [2019-12-07 21:50:13,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:50:13,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 21:50:13,221 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622422234] [2019-12-07 21:50:13,223 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 21:50:13,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 21:50:13,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 21:50:13,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 21:50:13,237 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2019-12-07 21:50:13,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:50:13,276 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2019-12-07 21:50:13,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 21:50:13,277 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-12-07 21:50:13,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:50:13,283 INFO L225 Difference]: With dead ends: 11 [2019-12-07 21:50:13,283 INFO L226 Difference]: Without dead ends: 6 [2019-12-07 21:50:13,285 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 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 21:50:13,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2019-12-07 21:50:13,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2019-12-07 21:50:13,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-12-07 21:50:13,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2019-12-07 21:50:13,308 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2019-12-07 21:50:13,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:50:13,309 INFO L462 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2019-12-07 21:50:13,309 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 21:50:13,309 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2019-12-07 21:50:13,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 21:50:13,309 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:50:13,310 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 21:50:13,310 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 21:50:13,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:50:13,310 INFO L82 PathProgramCache]: Analyzing trace with hash 51014173, now seen corresponding path program 1 times [2019-12-07 21:50:13,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 21:50:13,311 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427586776] [2019-12-07 21:50:13,311 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 21:50:13,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:50:13,343 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 21:50:13,343 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427586776] [2019-12-07 21:50:13,343 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:50:13,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 21:50:13,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893041087] [2019-12-07 21:50:13,344 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 21:50:13,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 21:50:13,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 21:50:13,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 21:50:13,345 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 4 states. [2019-12-07 21:50:13,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:50:13,356 INFO L93 Difference]: Finished difference Result 6 states and 6 transitions. [2019-12-07 21:50:13,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 21:50:13,357 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-12-07 21:50:13,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:50:13,357 INFO L225 Difference]: With dead ends: 6 [2019-12-07 21:50:13,357 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 21:50:13,358 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 21:50:13,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 21:50:13,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 21:50:13,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 21:50:13,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 21:50:13,358 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2019-12-07 21:50:13,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:50:13,359 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 21:50:13,359 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 21:50:13,359 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 21:50:13,359 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 21:50:13,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 21:50:13,370 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2019-12-07 21:50:13,370 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 21:50:13,370 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2019-12-07 21:50:13,370 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 21:50:13,370 INFO L246 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2019-12-07 21:50:13,371 INFO L246 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2019-12-07 21:50:13,371 INFO L246 CegarLoopResult]: For program point L15-1(lines 15 17) no Hoare annotation was computed. [2019-12-07 21:50:13,371 INFO L242 CegarLoopResult]: At program point L15-3(lines 15 17) the Hoare annotation is: (<= (select (select |#memory_int| ULTIMATE.start_main_~p~0.base) ULTIMATE.start_main_~p~0.offset) 2147483647) [2019-12-07 21:50:13,371 INFO L242 CegarLoopResult]: At program point L15-4(lines 15 17) the Hoare annotation is: (<= (select (select |#memory_int| ULTIMATE.start_main_~p~0.base) ULTIMATE.start_main_~p~0.offset) 2147483647) [2019-12-07 21:50:13,377 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-07 21:50:13,380 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-07 21:50:13,381 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-07 21:50:13,381 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-07 21:50:13,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 09:50:13 BoogieIcfgContainer [2019-12-07 21:50:13,382 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 21:50:13,383 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 21:50:13,383 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 21:50:13,383 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 21:50:13,383 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:50:13" (3/4) ... [2019-12-07 21:50:13,386 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 21:50:13,392 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-12-07 21:50:13,392 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 21:50:13,392 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 21:50:13,418 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_06840365-11ac-4e95-b29b-37e3f41ed737/bin/utaipan/witness.graphml [2019-12-07 21:50:13,418 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 21:50:13,420 INFO L168 Benchmark]: Toolchain (without parser) took 753.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 948.9 MB in the beginning and 1.0 GB in the end (delta: -95.7 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-12-07 21:50:13,420 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:50:13,421 INFO L168 Benchmark]: CACSL2BoogieTranslator took 170.49 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 948.9 MB in the beginning and 1.1 GB in the end (delta: -150.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 21:50:13,421 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.72 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 21:50:13,421 INFO L168 Benchmark]: Boogie Preprocessor took 12.59 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 21:50:13,421 INFO L168 Benchmark]: RCFGBuilder took 163.49 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-12-07 21:50:13,422 INFO L168 Benchmark]: TraceAbstraction took 347.42 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: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. [2019-12-07 21:50:13,422 INFO L168 Benchmark]: Witness Printer took 35.54 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 21:50:13,424 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 170.49 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 948.9 MB in the beginning and 1.1 GB in the end (delta: -150.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.72 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 12.59 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 163.49 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 347.42 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: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. * Witness Printer took 35.54 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant [2019-12-07 21:50:13,428 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-07 21:50:13,429 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: unknown-#memory_int-unknown[p][p] <= 2147483647 - InvariantResult [Line: 15]: Loop Invariant [2019-12-07 21:50:13,429 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-07 21:50:13,429 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: unknown-#memory_int-unknown[p][p] <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 2 error locations. Result: SAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 7 SDslu, 3 SDs, 0 SdLazy, 17 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 14 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 107 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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...