./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e69e1a27-97b2-4963-93a3-c5650729d31e/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e69e1a27-97b2-4963-93a3-c5650729d31e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e69e1a27-97b2-4963-93a3-c5650729d31e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e69e1a27-97b2-4963-93a3-c5650729d31e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e69e1a27-97b2-4963-93a3-c5650729d31e/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e69e1a27-97b2-4963-93a3-c5650729d31e/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 d3ded6f4470c26b608997f650ebe66ef1cf6f845 ............................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-03 12:32:10,253 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 12:32:10,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 12:32:10,317 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 12:32:10,335 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 12:32:10,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 12:32:10,343 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 12:32:10,346 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 12:32:10,348 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 12:32:10,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 12:32:10,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 12:32:10,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 12:32:10,354 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 12:32:10,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 12:32:10,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 12:32:10,359 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 12:32:10,361 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 12:32:10,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 12:32:10,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 12:32:10,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 12:32:10,370 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 12:32:10,372 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 12:32:10,374 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 12:32:10,375 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 12:32:10,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 12:32:10,380 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 12:32:10,381 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 12:32:10,382 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 12:32:10,383 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 12:32:10,385 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 12:32:10,385 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 12:32:10,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 12:32:10,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 12:32:10,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 12:32:10,391 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 12:32:10,391 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 12:32:10,392 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 12:32:10,392 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 12:32:10,393 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 12:32:10,394 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 12:32:10,395 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 12:32:10,400 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e69e1a27-97b2-4963-93a3-c5650729d31e/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2020-12-03 12:32:10,426 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 12:32:10,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 12:32:10,427 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 12:32:10,428 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-03 12:32:10,428 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-03 12:32:10,428 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-03 12:32:10,429 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-03 12:32:10,429 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-03 12:32:10,429 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-03 12:32:10,429 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-03 12:32:10,430 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-03 12:32:10,430 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-03 12:32:10,430 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-03 12:32:10,430 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-03 12:32:10,431 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-03 12:32:10,432 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 12:32:10,432 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-03 12:32:10,432 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 12:32:10,432 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 12:32:10,433 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 12:32:10,433 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 12:32:10,433 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 12:32:10,433 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-03 12:32:10,434 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 12:32:10,434 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 12:32:10,434 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 12:32:10,434 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 12:32:10,435 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 12:32:10,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:32:10,435 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 12:32:10,435 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 12:32:10,436 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 12:32:10,436 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-03 12:32:10,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 12:32:10,436 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 12:32:10,437 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 12:32:10,437 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-03 12:32:10,437 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_e69e1a27-97b2-4963-93a3-c5650729d31e/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e69e1a27-97b2-4963-93a3-c5650729d31e/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3ded6f4470c26b608997f650ebe66ef1cf6f845 [2020-12-03 12:32:10,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 12:32:10,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 12:32:10,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 12:32:10,744 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 12:32:10,745 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 12:32:10,746 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e69e1a27-97b2-4963-93a3-c5650729d31e/bin/utaipan/../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1.c [2020-12-03 12:32:10,835 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e69e1a27-97b2-4963-93a3-c5650729d31e/bin/utaipan/data/f964be6ab/12131d80f5e042758c21f3b3a54fcd09/FLAGb79fb6d9d [2020-12-03 12:32:11,361 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 12:32:11,361 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e69e1a27-97b2-4963-93a3-c5650729d31e/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1.c [2020-12-03 12:32:11,381 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e69e1a27-97b2-4963-93a3-c5650729d31e/bin/utaipan/data/f964be6ab/12131d80f5e042758c21f3b3a54fcd09/FLAGb79fb6d9d [2020-12-03 12:32:11,747 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e69e1a27-97b2-4963-93a3-c5650729d31e/bin/utaipan/data/f964be6ab/12131d80f5e042758c21f3b3a54fcd09 [2020-12-03 12:32:11,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 12:32:11,751 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 12:32:11,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 12:32:11,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 12:32:11,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 12:32:11,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:32:11" (1/1) ... [2020-12-03 12:32:11,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@319a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:11, skipping insertion in model container [2020-12-03 12:32:11,769 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:32:11" (1/1) ... [2020-12-03 12:32:11,777 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 12:32:11,804 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 12:32:11,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:32:11,973 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 12:32:12,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:32:12,014 INFO L208 MainTranslator]: Completed translation [2020-12-03 12:32:12,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:12 WrapperNode [2020-12-03 12:32:12,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 12:32:12,018 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 12:32:12,018 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 12:32:12,018 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 12:32:12,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:12" (1/1) ... [2020-12-03 12:32:12,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:12" (1/1) ... [2020-12-03 12:32:12,045 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 12:32:12,046 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 12:32:12,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 12:32:12,047 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 12:32:12,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:12" (1/1) ... [2020-12-03 12:32:12,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:12" (1/1) ... [2020-12-03 12:32:12,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:12" (1/1) ... [2020-12-03 12:32:12,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:12" (1/1) ... [2020-12-03 12:32:12,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:12" (1/1) ... [2020-12-03 12:32:12,060 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:12" (1/1) ... [2020-12-03 12:32:12,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:12" (1/1) ... [2020-12-03 12:32:12,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 12:32:12,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 12:32:12,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 12:32:12,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 12:32:12,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e69e1a27-97b2-4963-93a3-c5650729d31e/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 [2020-12-03 12:32:12,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 12:32:12,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 12:32:12,136 INFO L130 BoogieDeclarations]: Found specification of procedure r1 [2020-12-03 12:32:12,137 INFO L138 BoogieDeclarations]: Found implementation of procedure r1 [2020-12-03 12:32:12,342 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 12:32:12,342 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-03 12:32:12,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:32:12 BoogieIcfgContainer [2020-12-03 12:32:12,345 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 12:32:12,346 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-03 12:32:12,346 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-03 12:32:12,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-03 12:32:12,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 12:32:11" (1/3) ... [2020-12-03 12:32:12,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33ba43d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:32:12, skipping insertion in model container [2020-12-03 12:32:12,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:12" (2/3) ... [2020-12-03 12:32:12,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33ba43d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:32:12, skipping insertion in model container [2020-12-03 12:32:12,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:32:12" (3/3) ... [2020-12-03 12:32:12,353 INFO L111 eAbstractionObserver]: Analyzing ICFG LeeJonesBen-Amram-POPL2001-Ex1.c [2020-12-03 12:32:12,368 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-03 12:32:12,371 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-12-03 12:32:12,382 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-12-03 12:32:12,424 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-03 12:32:12,424 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-03 12:32:12,425 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-03 12:32:12,425 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-03 12:32:12,425 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-03 12:32:12,425 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-03 12:32:12,425 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-03 12:32:12,426 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-03 12:32:12,450 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-12-03 12:32:12,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-03 12:32:12,455 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:12,456 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-03 12:32:12,457 INFO L429 AbstractCegarLoop]: === Iteration 1 === [r1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-03 12:32:12,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:12,474 INFO L82 PathProgramCache]: Analyzing trace with hash 920915409, now seen corresponding path program 1 times [2020-12-03 12:32:12,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:12,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142597406] [2020-12-03 12:32:12,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:12,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:12,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:32:12,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142597406] [2020-12-03 12:32:12,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:32:12,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 12:32:12,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384332454] [2020-12-03 12:32:12,694 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-03 12:32:12,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:12,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-03 12:32:12,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-03 12:32:12,712 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 6 states. [2020-12-03 12:32:12,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:12,864 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-12-03 12:32:12,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-03 12:32:12,866 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2020-12-03 12:32:12,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:12,880 INFO L225 Difference]: With dead ends: 26 [2020-12-03 12:32:12,880 INFO L226 Difference]: Without dead ends: 17 [2020-12-03 12:32:12,885 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-12-03 12:32:12,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-12-03 12:32:12,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-12-03 12:32:12,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-12-03 12:32:12,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-12-03 12:32:12,926 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 6 [2020-12-03 12:32:12,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:12,926 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-12-03 12:32:12,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-03 12:32:12,927 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-12-03 12:32:12,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-03 12:32:12,927 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:12,928 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:32:12,928 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-03 12:32:12,929 INFO L429 AbstractCegarLoop]: === Iteration 2 === [r1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-03 12:32:12,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:12,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1516393339, now seen corresponding path program 1 times [2020-12-03 12:32:12,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:12,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442766480] [2020-12-03 12:32:12,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:12,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:12,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:32:12,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442766480] [2020-12-03 12:32:12,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:32:12,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 12:32:12,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5316804] [2020-12-03 12:32:12,990 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:32:12,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:12,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:32:12,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:32:12,992 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 5 states. [2020-12-03 12:32:13,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:13,052 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2020-12-03 12:32:13,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-03 12:32:13,052 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-12-03 12:32:13,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:13,053 INFO L225 Difference]: With dead ends: 31 [2020-12-03 12:32:13,053 INFO L226 Difference]: Without dead ends: 29 [2020-12-03 12:32:13,054 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-03 12:32:13,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-12-03 12:32:13,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 23. [2020-12-03 12:32:13,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-12-03 12:32:13,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-12-03 12:32:13,061 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 7 [2020-12-03 12:32:13,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:13,061 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-12-03 12:32:13,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:32:13,062 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-12-03 12:32:13,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-03 12:32:13,062 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:13,062 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:32:13,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-03 12:32:13,063 INFO L429 AbstractCegarLoop]: === Iteration 3 === [r1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-03 12:32:13,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:13,064 INFO L82 PathProgramCache]: Analyzing trace with hash 236446803, now seen corresponding path program 1 times [2020-12-03 12:32:13,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:13,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785436180] [2020-12-03 12:32:13,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:13,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 12:32:13,074 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 12:32:13,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 12:32:13,083 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 12:32:13,099 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-03 12:32:13,100 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-03 12:32:13,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-03 12:32:13,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 12:32:13 BoogieIcfgContainer [2020-12-03 12:32:13,119 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-03 12:32:13,120 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 12:32:13,120 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 12:32:13,120 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 12:32:13,121 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:32:12" (3/4) ... [2020-12-03 12:32:13,123 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-03 12:32:13,154 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e69e1a27-97b2-4963-93a3-c5650729d31e/bin/utaipan/witness.graphml [2020-12-03 12:32:13,154 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 12:32:13,156 INFO L168 Benchmark]: Toolchain (without parser) took 1403.82 ms. Allocated memory is still 94.4 MB. Free memory was 72.2 MB in the beginning and 51.3 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. [2020-12-03 12:32:13,157 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 94.4 MB. Free memory is still 57.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:32:13,158 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.78 ms. Allocated memory is still 94.4 MB. Free memory was 72.0 MB in the beginning and 73.1 MB in the end (delta: -1.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-03 12:32:13,159 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.64 ms. Allocated memory is still 94.4 MB. Free memory was 73.1 MB in the beginning and 71.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:32:13,160 INFO L168 Benchmark]: Boogie Preprocessor took 16.22 ms. Allocated memory is still 94.4 MB. Free memory was 71.8 MB in the beginning and 71.0 MB in the end (delta: 821.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:32:13,161 INFO L168 Benchmark]: RCFGBuilder took 281.52 ms. Allocated memory is still 94.4 MB. Free memory was 71.0 MB in the beginning and 58.8 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-03 12:32:13,165 INFO L168 Benchmark]: TraceAbstraction took 773.46 ms. Allocated memory is still 94.4 MB. Free memory was 58.4 MB in the beginning and 52.9 MB in the end (delta: 5.6 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2020-12-03 12:32:13,166 INFO L168 Benchmark]: Witness Printer took 34.20 ms. Allocated memory is still 94.4 MB. Free memory was 52.9 MB in the beginning and 51.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:32:13,172 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 94.4 MB. Free memory is still 57.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 263.78 ms. Allocated memory is still 94.4 MB. Free memory was 72.0 MB in the beginning and 73.1 MB in the end (delta: -1.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 27.64 ms. Allocated memory is still 94.4 MB. Free memory was 73.1 MB in the beginning and 71.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 16.22 ms. Allocated memory is still 94.4 MB. Free memory was 71.8 MB in the beginning and 71.0 MB in the end (delta: 821.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 281.52 ms. Allocated memory is still 94.4 MB. Free memory was 71.0 MB in the beginning and 58.8 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 773.46 ms. Allocated memory is still 94.4 MB. Free memory was 58.4 MB in the beginning and 52.9 MB in the end (delta: 5.6 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. * Witness Printer took 34.20 ms. Allocated memory is still 94.4 MB. Free memory was 52.9 MB in the beginning and 51.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 17]: integer overflow possible integer overflow possible We found a FailurePath: [L26] int ls = __VERIFIER_nondet_int(); [L27] COND TRUE ls >= 0 [L22] CALL r1(ls,0) VAL [\old(a)=0, \old(ls)=2147483647] [L14] COND FALSE !(ls == 0) VAL [\old(a)=0, \old(ls)=2147483647, a=0, ls=2147483647] [L17] ls-1 VAL [\old(a)=0, \old(ls)=2147483647, a=0, ls=2147483647] [L17] ls+1 VAL [\old(a)=0, \old(ls)=2147483647, a=0, ls=2147483647] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 14 SDtfs, 55 SDslu, 38 SDs, 0 SdLazy, 96 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 171 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...