./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/css2003.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e762525c-d94d-496f-b51c-1ddf003f645c/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e762525c-d94d-496f-b51c-1ddf003f645c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e762525c-d94d-496f-b51c-1ddf003f645c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e762525c-d94d-496f-b51c-1ddf003f645c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-lit/css2003.i -s /tmp/vcloud-vcloud-master/worker/run_dir_e762525c-d94d-496f-b51c-1ddf003f645c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e762525c-d94d-496f-b51c-1ddf003f645c/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f86f1d97a8eea81a810b00eedf9f945dcb9155ec ........................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:53:41,017 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:53:41,020 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:53:41,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:53:41,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:53:41,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:53:41,078 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:53:41,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:53:41,086 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:53:41,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:53:41,099 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:53:41,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:53:41,109 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:53:41,114 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:53:41,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:53:41,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:53:41,126 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:53:41,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:53:41,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:53:41,143 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:53:41,150 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:53:41,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:53:41,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:53:41,161 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:53:41,167 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:53:41,169 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:53:41,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:53:41,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:53:41,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:53:41,186 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:53:41,186 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:53:41,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:53:41,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:53:41,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:53:41,191 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:53:41,191 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:53:41,192 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:53:41,193 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:53:41,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:53:41,195 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:53:41,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:53:41,197 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e762525c-d94d-496f-b51c-1ddf003f645c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:53:41,231 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:53:41,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:53:41,233 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:53:41,233 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:53:41,234 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:53:41,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:53:41,235 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:53:41,235 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:53:41,235 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:53:41,236 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:53:41,236 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:53:41,236 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:53:41,237 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:53:41,237 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:53:41,237 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:53:41,238 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:53:41,238 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:53:41,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:53:41,239 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:53:41,239 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:53:41,239 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:53:41,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:53:41,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:53:41,240 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:53:41,241 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:53:41,241 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:53:41,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:53:41,242 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:53:41,242 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:53:41,242 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_e762525c-d94d-496f-b51c-1ddf003f645c/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e762525c-d94d-496f-b51c-1ddf003f645c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f86f1d97a8eea81a810b00eedf9f945dcb9155ec [2020-12-01 15:53:41,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:53:41,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:53:41,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:53:41,610 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:53:41,611 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:53:41,613 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e762525c-d94d-496f-b51c-1ddf003f645c/bin/uautomizer/../../sv-benchmarks/c/loop-lit/css2003.i [2020-12-01 15:53:41,726 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e762525c-d94d-496f-b51c-1ddf003f645c/bin/uautomizer/data/6035a7754/a38aae5acb4c4e369c88a3953ffa6875/FLAG1fd52d2b2 [2020-12-01 15:53:42,327 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:53:42,327 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e762525c-d94d-496f-b51c-1ddf003f645c/sv-benchmarks/c/loop-lit/css2003.i [2020-12-01 15:53:42,334 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e762525c-d94d-496f-b51c-1ddf003f645c/bin/uautomizer/data/6035a7754/a38aae5acb4c4e369c88a3953ffa6875/FLAG1fd52d2b2 [2020-12-01 15:53:42,719 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e762525c-d94d-496f-b51c-1ddf003f645c/bin/uautomizer/data/6035a7754/a38aae5acb4c4e369c88a3953ffa6875 [2020-12-01 15:53:42,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:53:42,725 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:53:42,727 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:53:42,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:53:42,732 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:53:42,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:53:42" (1/1) ... [2020-12-01 15:53:42,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7221d379 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:42, skipping insertion in model container [2020-12-01 15:53:42,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:53:42" (1/1) ... [2020-12-01 15:53:42,745 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:53:42,764 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:53:43,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:53:43,035 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:53:43,075 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:53:43,102 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:53:43,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:43 WrapperNode [2020-12-01 15:53:43,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:53:43,113 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:53:43,113 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:53:43,114 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:53:43,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:43" (1/1) ... [2020-12-01 15:53:43,148 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:43" (1/1) ... [2020-12-01 15:53:43,177 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:53:43,178 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:53:43,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:53:43,180 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:53:43,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:43" (1/1) ... [2020-12-01 15:53:43,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:43" (1/1) ... [2020-12-01 15:53:43,210 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:43" (1/1) ... [2020-12-01 15:53:43,211 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:43" (1/1) ... [2020-12-01 15:53:43,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:43" (1/1) ... [2020-12-01 15:53:43,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:43" (1/1) ... [2020-12-01 15:53:43,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:43" (1/1) ... [2020-12-01 15:53:43,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:53:43,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:53:43,238 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:53:43,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:53:43,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e762525c-d94d-496f-b51c-1ddf003f645c/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 [2020-12-01 15:53:43,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:53:43,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:53:43,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:53:43,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:53:43,682 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:53:43,683 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-01 15:53:43,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:53:43 BoogieIcfgContainer [2020-12-01 15:53:43,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:53:43,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:53:43,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:53:43,693 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:53:43,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:53:42" (1/3) ... [2020-12-01 15:53:43,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e29651f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:53:43, skipping insertion in model container [2020-12-01 15:53:43,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:43" (2/3) ... [2020-12-01 15:53:43,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e29651f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:53:43, skipping insertion in model container [2020-12-01 15:53:43,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:53:43" (3/3) ... [2020-12-01 15:53:43,698 INFO L111 eAbstractionObserver]: Analyzing ICFG css2003.i [2020-12-01 15:53:43,736 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:53:43,740 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:53:43,769 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:53:43,801 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:53:43,802 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:53:43,802 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:53:43,802 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:53:43,802 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:53:43,802 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:53:43,803 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:53:43,803 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:53:43,819 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-12-01 15:53:43,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 15:53:43,826 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:53:43,827 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:53:43,827 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:53:43,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:43,835 INFO L82 PathProgramCache]: Analyzing trace with hash 183320335, now seen corresponding path program 1 times [2020-12-01 15:53:43,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:43,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886946700] [2020-12-01 15:53:43,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:53:44,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:53:44,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886946700] [2020-12-01 15:53:44,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:53:44,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 15:53:44,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298723008] [2020-12-01 15:53:44,189 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 15:53:44,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:53:44,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:53:44,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:53:44,210 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 5 states. [2020-12-01 15:53:44,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:53:44,265 INFO L93 Difference]: Finished difference Result 29 states and 38 transitions. [2020-12-01 15:53:44,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:53:44,267 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-12-01 15:53:44,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:53:44,278 INFO L225 Difference]: With dead ends: 29 [2020-12-01 15:53:44,278 INFO L226 Difference]: Without dead ends: 11 [2020-12-01 15:53:44,282 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:53:44,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-12-01 15:53:44,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-12-01 15:53:44,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-12-01 15:53:44,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2020-12-01 15:53:44,322 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2020-12-01 15:53:44,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:53:44,323 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2020-12-01 15:53:44,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 15:53:44,323 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2020-12-01 15:53:44,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 15:53:44,324 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:53:44,324 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:53:44,325 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:53:44,325 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:53:44,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:44,326 INFO L82 PathProgramCache]: Analyzing trace with hash 444530687, now seen corresponding path program 1 times [2020-12-01 15:53:44,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:44,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528117566] [2020-12-01 15:53:44,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:44,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:53:44,471 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:53:44,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528117566] [2020-12-01 15:53:44,473 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547614394] [2020-12-01 15:53:44,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e762525c-d94d-496f-b51c-1ddf003f645c/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 [2020-12-01 15:53:44,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:53:44,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-01 15:53:44,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:53:44,775 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:53:44,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:53:44,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-12-01 15:53:44,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738913205] [2020-12-01 15:53:44,778 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-01 15:53:44,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:53:44,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-01 15:53:44,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:53:44,780 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 8 states. [2020-12-01 15:53:44,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:53:44,864 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2020-12-01 15:53:44,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:53:44,864 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2020-12-01 15:53:44,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:53:44,865 INFO L225 Difference]: With dead ends: 12 [2020-12-01 15:53:44,866 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:53:44,868 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-12-01 15:53:44,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:53:44,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:53:44,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:53:44,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:53:44,869 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-12-01 15:53:44,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:53:44,870 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:53:44,870 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-01 15:53:44,870 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:53:44,871 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:53:45,082 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-01 15:53:45,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 15:53:45,171 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 15:53:45,171 INFO L262 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-12-01 15:53:45,172 INFO L262 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-12-01 15:53:45,172 INFO L258 CegarLoopResult]: At program point L36(lines 24 37) the Hoare annotation is: (or (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (= ULTIMATE.start_main_~i~0 1)) [2020-12-01 15:53:45,172 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 15:53:45,172 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 15:53:45,172 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 15:53:45,173 INFO L262 CegarLoopResult]: For program point L30-2(lines 30 35) no Hoare annotation was computed. [2020-12-01 15:53:45,173 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-12-01 15:53:45,173 INFO L262 CegarLoopResult]: For program point L18(lines 18 20) no Hoare annotation was computed. [2020-12-01 15:53:45,173 INFO L258 CegarLoopResult]: At program point L18-2(lines 17 35) the Hoare annotation is: (or (let ((.cse0 (+ ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~k~0))) (and (<= .cse0 2) (<= 1 .cse0) (<= 2 ULTIMATE.start_main_~i~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond))) (and (= ULTIMATE.start_main_~i~0 1) (<= 0 ULTIMATE.start_main_~k~0) (<= ULTIMATE.start_main_~k~0 1))) [2020-12-01 15:53:45,173 INFO L262 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-12-01 15:53:45,174 INFO L262 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-12-01 15:53:45,174 INFO L262 CegarLoopResult]: For program point L12-3(line 12) no Hoare annotation was computed. [2020-12-01 15:53:45,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:53:45 BoogieIcfgContainer [2020-12-01 15:53:45,194 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:53:45,195 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:53:45,195 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:53:45,195 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:53:45,196 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:53:43" (3/4) ... [2020-12-01 15:53:45,200 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 15:53:45,212 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-01 15:53:45,213 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 15:53:45,213 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:53:45,213 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:53:45,272 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e762525c-d94d-496f-b51c-1ddf003f645c/bin/uautomizer/witness.graphml [2020-12-01 15:53:45,272 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:53:45,274 INFO L168 Benchmark]: Toolchain (without parser) took 2548.19 ms. Allocated memory was 96.5 MB in the beginning and 136.3 MB in the end (delta: 39.8 MB). Free memory was 67.6 MB in the beginning and 93.1 MB in the end (delta: -25.5 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. [2020-12-01 15:53:45,275 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 96.5 MB. Free memory is still 54.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:53:45,276 INFO L168 Benchmark]: CACSL2BoogieTranslator took 379.39 ms. Allocated memory was 96.5 MB in the beginning and 136.3 MB in the end (delta: 39.8 MB). Free memory was 67.2 MB in the beginning and 112.5 MB in the end (delta: -45.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:53:45,277 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.40 ms. Allocated memory is still 136.3 MB. Free memory was 112.5 MB in the beginning and 110.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:53:45,278 INFO L168 Benchmark]: Boogie Preprocessor took 58.10 ms. Allocated memory is still 136.3 MB. Free memory was 110.9 MB in the beginning and 109.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:53:45,279 INFO L168 Benchmark]: RCFGBuilder took 448.07 ms. Allocated memory is still 136.3 MB. Free memory was 109.8 MB in the beginning and 98.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:53:45,279 INFO L168 Benchmark]: TraceAbstraction took 1506.13 ms. Allocated memory is still 136.3 MB. Free memory was 98.4 MB in the beginning and 95.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:53:45,280 INFO L168 Benchmark]: Witness Printer took 77.55 ms. Allocated memory is still 136.3 MB. Free memory was 95.2 MB in the beginning and 93.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:53:45,284 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 96.5 MB. Free memory is still 54.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 379.39 ms. Allocated memory was 96.5 MB in the beginning and 136.3 MB in the end (delta: 39.8 MB). Free memory was 67.2 MB in the beginning and 112.5 MB in the end (delta: -45.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 64.40 ms. Allocated memory is still 136.3 MB. Free memory was 112.5 MB in the beginning and 110.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.10 ms. Allocated memory is still 136.3 MB. Free memory was 110.9 MB in the beginning and 109.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 448.07 ms. Allocated memory is still 136.3 MB. Free memory was 109.8 MB in the beginning and 98.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1506.13 ms. Allocated memory is still 136.3 MB. Free memory was 98.4 MB in the beginning and 95.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Witness Printer took 77.55 ms. Allocated memory is still 136.3 MB. Free memory was 95.2 MB in the beginning and 93.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((i + k <= 2 && 1 <= i + k) && 2 <= i) && 1 <= cond) || ((i == 1 && 0 <= k) && k <= 1) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: !(0 == cond) || i == 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 18 SDtfs, 14 SDslu, 25 SDs, 0 SdLazy, 23 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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, 7 NumberOfFragments, 36 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 23 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 984 SizeOfPredicates, 3 NumberOfNonLiveVariables, 63 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...