./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-crafted/simple_vardep_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d21cb66c-74d6-405a-88a7-f4e63c0146c6/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d21cb66c-74d6-405a-88a7-f4e63c0146c6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d21cb66c-74d6-405a-88a7-f4e63c0146c6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d21cb66c-74d6-405a-88a7-f4e63c0146c6/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-crafted/simple_vardep_1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d21cb66c-74d6-405a-88a7-f4e63c0146c6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d21cb66c-74d6-405a-88a7-f4e63c0146c6/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 66fc40811a6b64eeba1619d2b2b45575ff6b207a ..................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:08:55,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:08:55,320 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:08:55,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:08:55,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:08:55,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:08:55,404 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:08:55,407 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:08:55,411 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:08:55,413 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:08:55,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:08:55,417 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:08:55,418 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:08:55,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:08:55,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:08:55,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:08:55,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:08:55,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:08:55,432 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:08:55,436 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:08:55,439 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:08:55,441 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:08:55,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:08:55,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:08:55,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:08:55,456 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:08:55,457 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:08:55,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:08:55,462 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:08:55,464 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:08:55,465 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:08:55,467 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:08:55,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:08:55,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:08:55,475 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:08:55,475 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:08:55,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:08:55,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:08:55,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:08:55,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:08:55,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:08:55,483 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d21cb66c-74d6-405a-88a7-f4e63c0146c6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:08:55,516 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:08:55,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:08:55,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:08:55,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:08:55,520 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:08:55,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:08:55,520 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:08:55,521 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:08:55,521 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:08:55,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:08:55,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:08:55,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:08:55,522 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:08:55,523 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:08:55,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:08:55,523 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:08:55,524 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:08:55,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:08:55,524 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:08:55,525 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:08:55,525 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:08:55,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:08:55,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:08:55,526 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:08:55,527 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:08:55,527 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:08:55,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:08:55,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:08:55,528 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:08:55,528 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_d21cb66c-74d6-405a-88a7-f4e63c0146c6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d21cb66c-74d6-405a-88a7-f4e63c0146c6/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66fc40811a6b64eeba1619d2b2b45575ff6b207a [2020-11-30 00:08:55,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:08:56,047 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:08:56,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:08:56,055 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:08:56,059 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:08:56,061 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d21cb66c-74d6-405a-88a7-f4e63c0146c6/bin/uautomizer/../../sv-benchmarks/c/loop-crafted/simple_vardep_1.c [2020-11-30 00:08:56,162 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d21cb66c-74d6-405a-88a7-f4e63c0146c6/bin/uautomizer/data/2b1ae3422/bb7c6bf7d968419d83c62a3046883e40/FLAG86dcb9bc2 [2020-11-30 00:08:56,958 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:08:56,959 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d21cb66c-74d6-405a-88a7-f4e63c0146c6/sv-benchmarks/c/loop-crafted/simple_vardep_1.c [2020-11-30 00:08:56,976 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d21cb66c-74d6-405a-88a7-f4e63c0146c6/bin/uautomizer/data/2b1ae3422/bb7c6bf7d968419d83c62a3046883e40/FLAG86dcb9bc2 [2020-11-30 00:08:57,301 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d21cb66c-74d6-405a-88a7-f4e63c0146c6/bin/uautomizer/data/2b1ae3422/bb7c6bf7d968419d83c62a3046883e40 [2020-11-30 00:08:57,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:08:57,312 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:08:57,321 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:08:57,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:08:57,326 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:08:57,328 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:08:57" (1/1) ... [2020-11-30 00:08:57,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23f4dfc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:08:57, skipping insertion in model container [2020-11-30 00:08:57,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:08:57" (1/1) ... [2020-11-30 00:08:57,343 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:08:57,365 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:08:57,659 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:08:57,677 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:08:57,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:08:57,726 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:08:57,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:08:57 WrapperNode [2020-11-30 00:08:57,727 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:08:57,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:08:57,733 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:08:57,733 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:08:57,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:08:57" (1/1) ... [2020-11-30 00:08:57,754 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:08:57" (1/1) ... [2020-11-30 00:08:57,778 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:08:57,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:08:57,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:08:57,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:08:57,793 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:08:57" (1/1) ... [2020-11-30 00:08:57,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:08:57" (1/1) ... [2020-11-30 00:08:57,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:08:57" (1/1) ... [2020-11-30 00:08:57,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:08:57" (1/1) ... [2020-11-30 00:08:57,803 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:08:57" (1/1) ... [2020-11-30 00:08:57,810 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:08:57" (1/1) ... [2020-11-30 00:08:57,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:08:57" (1/1) ... [2020-11-30 00:08:57,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:08:57,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:08:57,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:08:57,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:08:57,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:08:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d21cb66c-74d6-405a-88a7-f4e63c0146c6/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 [2020-11-30 00:08:57,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:08:57,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:08:57,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:08:57,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:08:58,350 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:08:58,351 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 00:08:58,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:08:58 BoogieIcfgContainer [2020-11-30 00:08:58,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:08:58,356 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:08:58,356 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:08:58,361 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:08:58,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:08:57" (1/3) ... [2020-11-30 00:08:58,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a076b60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:08:58, skipping insertion in model container [2020-11-30 00:08:58,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:08:57" (2/3) ... [2020-11-30 00:08:58,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a076b60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:08:58, skipping insertion in model container [2020-11-30 00:08:58,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:08:58" (3/3) ... [2020-11-30 00:08:58,366 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_vardep_1.c [2020-11-30 00:08:58,382 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:08:58,388 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:08:58,404 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:08:58,437 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:08:58,437 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:08:58,437 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:08:58,438 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:08:58,438 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:08:58,438 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:08:58,438 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:08:58,438 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:08:58,455 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-30 00:08:58,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 00:08:58,477 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:08:58,478 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-30 00:08:58,479 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:08:58,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:08:58,487 INFO L82 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2020-11-30 00:08:58,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:08:58,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917679565] [2020-11-30 00:08:58,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:08:58,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:08:59,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:08:59,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917679565] [2020-11-30 00:08:59,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:08:59,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:08:59,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077602801] [2020-11-30 00:08:59,069 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:08:59,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:08:59,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:08:59,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:08:59,101 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 4 states. [2020-11-30 00:08:59,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:08:59,189 INFO L93 Difference]: Finished difference Result 19 states and 26 transitions. [2020-11-30 00:08:59,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:08:59,193 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-11-30 00:08:59,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:08:59,210 INFO L225 Difference]: With dead ends: 19 [2020-11-30 00:08:59,210 INFO L226 Difference]: Without dead ends: 8 [2020-11-30 00:08:59,227 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:08:59,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-11-30 00:08:59,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-11-30 00:08:59,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-11-30 00:08:59,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2020-11-30 00:08:59,281 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2020-11-30 00:08:59,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:08:59,282 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2020-11-30 00:08:59,282 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:08:59,283 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2020-11-30 00:08:59,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 00:08:59,284 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:08:59,285 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2020-11-30 00:08:59,285 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:08:59,285 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:08:59,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:08:59,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1810864000, now seen corresponding path program 1 times [2020-11-30 00:08:59,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:08:59,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386231384] [2020-11-30 00:08:59,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:08:59,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:08:59,456 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:08:59,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386231384] [2020-11-30 00:08:59,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1616066271] [2020-11-30 00:08:59,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d21cb66c-74d6-405a-88a7-f4e63c0146c6/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 [2020-11-30 00:08:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:08:59,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 21 conjunts are in the unsatisfiable core [2020-11-30 00:08:59,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:08:59,639 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:08:59,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 00:08:59,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-11-30 00:08:59,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999931308] [2020-11-30 00:08:59,642 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 00:08:59,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:08:59,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 00:08:59,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:08:59,644 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 7 states. [2020-11-30 00:08:59,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:08:59,761 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2020-11-30 00:08:59,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:08:59,762 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 7 [2020-11-30 00:08:59,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:08:59,763 INFO L225 Difference]: With dead ends: 9 [2020-11-30 00:08:59,763 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:08:59,764 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-11-30 00:08:59,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:08:59,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:08:59,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:08:59,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:08:59,765 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2020-11-30 00:08:59,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:08:59,766 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:08:59,766 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 00:08:59,766 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:08:59,766 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:08:59,967 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-30 00:08:59,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 00:09:00,080 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 00:09:00,080 INFO L274 CegarLoopResult]: For program point L15(lines 15 29) no Hoare annotation was computed. [2020-11-30 00:09:00,080 INFO L274 CegarLoopResult]: For program point L9(lines 9 11) no Hoare annotation was computed. [2020-11-30 00:09:00,081 INFO L270 CegarLoopResult]: At program point L9-2(lines 7 27) the Hoare annotation is: (or (and (= ULTIMATE.start_main_~i~0 0) (= ULTIMATE.start_main_~k~0 0) (= ULTIMATE.start_main_~j~0 0)) (let ((.cse0 (+ ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~j~0))) (and (<= .cse0 ULTIMATE.start_main_~k~0) (<= ULTIMATE.start_main_~k~0 .cse0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)))) [2020-11-30 00:09:00,081 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 00:09:00,081 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 00:09:00,081 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 00:09:00,082 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2020-11-30 00:09:00,083 INFO L274 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-11-30 00:09:00,085 INFO L274 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-11-30 00:09:00,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:09:00 BoogieIcfgContainer [2020-11-30 00:09:00,113 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:09:00,114 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:09:00,114 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:09:00,116 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:09:00,116 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:08:58" (3/4) ... [2020-11-30 00:09:00,120 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:09:00,138 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-30 00:09:00,140 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 00:09:00,141 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:09:00,142 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:09:00,183 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d21cb66c-74d6-405a-88a7-f4e63c0146c6/bin/uautomizer/witness.graphml [2020-11-30 00:09:00,185 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:09:00,188 INFO L168 Benchmark]: Toolchain (without parser) took 2874.24 ms. Allocated memory was 94.4 MB in the beginning and 121.6 MB in the end (delta: 27.3 MB). Free memory was 64.2 MB in the beginning and 93.0 MB in the end (delta: -28.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:09:00,196 INFO L168 Benchmark]: CDTParser took 0.80 ms. Allocated memory is still 94.4 MB. Free memory was 51.4 MB in the beginning and 51.4 MB in the end (delta: 43.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:09:00,200 INFO L168 Benchmark]: CACSL2BoogieTranslator took 406.97 ms. Allocated memory is still 94.4 MB. Free memory was 64.0 MB in the beginning and 71.5 MB in the end (delta: -7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:09:00,202 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.69 ms. Allocated memory is still 94.4 MB. Free memory was 71.5 MB in the beginning and 70.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:09:00,203 INFO L168 Benchmark]: Boogie Preprocessor took 40.22 ms. Allocated memory is still 94.4 MB. Free memory was 70.0 MB in the beginning and 69.1 MB in the end (delta: 937.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:09:00,206 INFO L168 Benchmark]: RCFGBuilder took 531.63 ms. Allocated memory is still 94.4 MB. Free memory was 69.1 MB in the beginning and 58.9 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:09:00,207 INFO L168 Benchmark]: TraceAbstraction took 1757.98 ms. Allocated memory was 94.4 MB in the beginning and 121.6 MB in the end (delta: 27.3 MB). Free memory was 58.6 MB in the beginning and 95.0 MB in the end (delta: -36.4 MB). Peak memory consumption was 25.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:09:00,212 INFO L168 Benchmark]: Witness Printer took 70.96 ms. Allocated memory is still 121.6 MB. Free memory was 95.0 MB in the beginning and 93.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:09:00,217 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80 ms. Allocated memory is still 94.4 MB. Free memory was 51.4 MB in the beginning and 51.4 MB in the end (delta: 43.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 406.97 ms. Allocated memory is still 94.4 MB. Free memory was 64.0 MB in the beginning and 71.5 MB in the end (delta: -7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.69 ms. Allocated memory is still 94.4 MB. Free memory was 71.5 MB in the beginning and 70.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.22 ms. Allocated memory is still 94.4 MB. Free memory was 70.0 MB in the beginning and 69.1 MB in the end (delta: 937.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 531.63 ms. Allocated memory is still 94.4 MB. Free memory was 69.1 MB in the beginning and 58.9 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1757.98 ms. Allocated memory was 94.4 MB in the beginning and 121.6 MB in the end (delta: 27.3 MB). Free memory was 58.6 MB in the beginning and 95.0 MB in the end (delta: -36.4 MB). Peak memory consumption was 25.3 MB. Max. memory is 16.1 GB. * Witness Printer took 70.96 ms. Allocated memory is still 121.6 MB. Free memory was 95.0 MB in the beginning and 93.0 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: 6]: 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: 7]: Loop Invariant Derived loop invariant: ((i == 0 && k == 0) && j == 0) || ((i + j <= k && k <= i + j) && 1 <= cond) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 8 SDslu, 12 SDs, 0 SdLazy, 17 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 1 LocationsWithAnnotation, 1 PreInvPairs, 4 NumberOfFragments, 25 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 21 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 502 SizeOfPredicates, 5 NumberOfNonLiveVariables, 63 ConjunctsInSsa, 21 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...