./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark19_conjunctive.i --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_1256864e-cdd2-443a-ab17-dfd7ac569f81/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1256864e-cdd2-443a-ab17-dfd7ac569f81/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1256864e-cdd2-443a-ab17-dfd7ac569f81/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1256864e-cdd2-443a-ab17-dfd7ac569f81/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark19_conjunctive.i -s /tmp/vcloud-vcloud-master/worker/run_dir_1256864e-cdd2-443a-ab17-dfd7ac569f81/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1256864e-cdd2-443a-ab17-dfd7ac569f81/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b3778a0dc06b06dbf04163d9b170743f1501fb85 .................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:05:15,818 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:05:15,820 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:05:15,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:05:15,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:05:15,883 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:05:15,886 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:05:15,892 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:05:15,895 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:05:15,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:05:15,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:05:15,906 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:05:15,907 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:05:15,910 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:05:15,911 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:05:15,913 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:05:15,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:05:15,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:05:15,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:05:15,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:05:15,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:05:15,930 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:05:15,932 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:05:15,933 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:05:15,941 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:05:15,941 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:05:15,942 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:05:15,944 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:05:15,944 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:05:15,945 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:05:15,946 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:05:15,947 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:05:15,948 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:05:15,949 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:05:15,950 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:05:15,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:05:15,951 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:05:15,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:05:15,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:05:15,953 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:05:15,953 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:05:15,957 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1256864e-cdd2-443a-ab17-dfd7ac569f81/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:05:15,995 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:05:15,996 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:05:15,996 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:05:15,997 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:05:15,997 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:05:15,997 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:05:15,997 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:05:16,001 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:05:16,002 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:05:16,002 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:05:16,003 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:05:16,003 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:05:16,003 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:05:16,003 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:05:16,004 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:05:16,004 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:05:16,004 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:05:16,005 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:05:16,005 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:05:16,005 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:05:16,005 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:05:16,005 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:05:16,005 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:05:16,006 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:05:16,006 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:05:16,006 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:05:16,006 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:05:16,007 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:05:16,007 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:05:16,007 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:05:16,007 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:05:16,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:05:16,008 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:05:16,008 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:05:16,008 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:05:16,008 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:05:16,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:05:16,009 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:05:16,009 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:05:16,009 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:05:16,009 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_1256864e-cdd2-443a-ab17-dfd7ac569f81/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1256864e-cdd2-443a-ab17-dfd7ac569f81/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3778a0dc06b06dbf04163d9b170743f1501fb85 [2020-11-22 13:05:16,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:05:16,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:05:16,364 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:05:16,365 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:05:16,366 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:05:16,367 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1256864e-cdd2-443a-ab17-dfd7ac569f81/bin/utaipan/../../sv-benchmarks/c/loop-zilu/benchmark19_conjunctive.i [2020-11-22 13:05:16,436 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1256864e-cdd2-443a-ab17-dfd7ac569f81/bin/utaipan/data/8605e26b9/08cbe8cfa51c4831b0925daac371c0c1/FLAGdc0e65887 [2020-11-22 13:05:16,932 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:05:16,933 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1256864e-cdd2-443a-ab17-dfd7ac569f81/sv-benchmarks/c/loop-zilu/benchmark19_conjunctive.i [2020-11-22 13:05:16,939 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1256864e-cdd2-443a-ab17-dfd7ac569f81/bin/utaipan/data/8605e26b9/08cbe8cfa51c4831b0925daac371c0c1/FLAGdc0e65887 [2020-11-22 13:05:17,337 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1256864e-cdd2-443a-ab17-dfd7ac569f81/bin/utaipan/data/8605e26b9/08cbe8cfa51c4831b0925daac371c0c1 [2020-11-22 13:05:17,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:05:17,341 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:05:17,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:17,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:05:17,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:05:17,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:17" (1/1) ... [2020-11-22 13:05:17,348 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@260d5820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:17, skipping insertion in model container [2020-11-22 13:05:17,349 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:17" (1/1) ... [2020-11-22 13:05:17,355 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:05:17,369 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:05:17,572 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:17,579 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:05:17,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:17,608 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:05:17,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:17 WrapperNode [2020-11-22 13:05:17,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:17,610 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:05:17,610 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:05:17,611 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:05:17,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:17" (1/1) ... [2020-11-22 13:05:17,624 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:17" (1/1) ... [2020-11-22 13:05:17,640 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:05:17,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:05:17,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:05:17,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:05:17,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:17" (1/1) ... [2020-11-22 13:05:17,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:17" (1/1) ... [2020-11-22 13:05:17,651 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:17" (1/1) ... [2020-11-22 13:05:17,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:17" (1/1) ... [2020-11-22 13:05:17,654 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:17" (1/1) ... [2020-11-22 13:05:17,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:17" (1/1) ... [2020-11-22 13:05:17,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:17" (1/1) ... [2020-11-22 13:05:17,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:05:17,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:05:17,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:05:17,661 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:05:17,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1256864e-cdd2-443a-ab17-dfd7ac569f81/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 [2020-11-22 13:05:17,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 13:05:17,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:05:17,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:05:17,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:05:18,004 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:05:18,004 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-22 13:05:18,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:18 BoogieIcfgContainer [2020-11-22 13:05:18,006 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:05:18,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:05:18,008 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:05:18,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:05:18,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:05:17" (1/3) ... [2020-11-22 13:05:18,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a0722bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:05:18, skipping insertion in model container [2020-11-22 13:05:18,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:17" (2/3) ... [2020-11-22 13:05:18,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a0722bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:05:18, skipping insertion in model container [2020-11-22 13:05:18,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:18" (3/3) ... [2020-11-22 13:05:18,015 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark19_conjunctive.i [2020-11-22 13:05:18,025 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:05:18,030 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 13:05:18,051 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 13:05:18,087 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:05:18,094 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:05:18,095 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:05:18,095 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:05:18,095 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:05:18,095 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:05:18,095 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:05:18,096 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:05:18,111 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-22 13:05:18,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-22 13:05:18,117 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:18,118 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-22 13:05:18,118 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:18,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:18,124 INFO L82 PathProgramCache]: Analyzing trace with hash 2011779439, now seen corresponding path program 1 times [2020-11-22 13:05:18,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:05:18,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326053602] [2020-11-22 13:05:18,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:05:18,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:18,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:18,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326053602] [2020-11-22 13:05:18,362 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:18,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-22 13:05:18,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178680081] [2020-11-22 13:05:18,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:05:18,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:05:18,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:05:18,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:05:18,382 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 3 states. [2020-11-22 13:05:18,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:18,411 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2020-11-22 13:05:18,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:05:18,413 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-22 13:05:18,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:18,420 INFO L225 Difference]: With dead ends: 18 [2020-11-22 13:05:18,421 INFO L226 Difference]: Without dead ends: 8 [2020-11-22 13:05:18,423 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:05:18,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-11-22 13:05:18,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-11-22 13:05:18,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-11-22 13:05:18,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2020-11-22 13:05:18,459 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2020-11-22 13:05:18,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:18,459 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2020-11-22 13:05:18,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:05:18,459 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2020-11-22 13:05:18,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-22 13:05:18,460 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:18,460 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:05:18,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 13:05:18,461 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:18,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:18,461 INFO L82 PathProgramCache]: Analyzing trace with hash -2082797155, now seen corresponding path program 1 times [2020-11-22 13:05:18,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:05:18,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856224792] [2020-11-22 13:05:18,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:05:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:18,615 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:18,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856224792] [2020-11-22 13:05:18,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898873786] [2020-11-22 13:05:18,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1256864e-cdd2-443a-ab17-dfd7ac569f81/bin/utaipan/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 [2020-11-22 13:05:18,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:18,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-22 13:05:18,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:05:18,773 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-22 13:05:18,778 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-22 13:05:18,782 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-22 13:05:18,784 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-22 13:05:18,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:18,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:05:18,862 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-22 13:05:18,890 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-22 13:05:18,952 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:18,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [440948314] [2020-11-22 13:05:18,984 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2020-11-22 13:05:18,984 INFO L166 IcfgInterpreter]: Building call graph [2020-11-22 13:05:18,992 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-22 13:05:18,997 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-22 13:05:18,998 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-22 13:05:19,566 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-22 13:05:19,717 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-11-22 13:05:19,859 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-11-22 13:05:20,084 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-22 13:05:20,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-11-22 13:05:20,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2020-11-22 13:05:20,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745886151] [2020-11-22 13:05:20,086 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-22 13:05:20,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:05:20,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-22 13:05:20,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2020-11-22 13:05:20,088 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 10 states. [2020-11-22 13:05:20,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:20,283 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2020-11-22 13:05:20,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-22 13:05:20,283 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 7 [2020-11-22 13:05:20,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:20,284 INFO L225 Difference]: With dead ends: 10 [2020-11-22 13:05:20,284 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 13:05:20,285 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2020-11-22 13:05:20,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 13:05:20,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 13:05:20,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 13:05:20,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 13:05:20,286 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2020-11-22 13:05:20,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:20,286 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 13:05:20,286 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-22 13:05:20,287 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 13:05:20,287 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 13:05:20,487 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-22 13:05:20,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-22 13:05:20,530 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-22 13:05:20,530 INFO L274 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2020-11-22 13:05:20,530 INFO L274 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2020-11-22 13:05:20,530 INFO L274 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-11-22 13:05:20,530 INFO L274 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-11-22 13:05:20,531 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-22 13:05:20,531 INFO L277 CegarLoopResult]: At program point L28(lines 19 29) the Hoare annotation is: true [2020-11-22 13:05:20,531 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2020-11-22 13:05:20,531 INFO L270 CegarLoopResult]: At program point L24-2(lines 24 26) the Hoare annotation is: (and (<= ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~j~0) (< 0 ULTIMATE.start_main_~n~0) (<= ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~k~0) (< 0 (+ ULTIMATE.start_main_~k~0 1))) [2020-11-22 13:05:20,531 INFO L274 CegarLoopResult]: For program point L14(lines 14 18) no Hoare annotation was computed. [2020-11-22 13:05:20,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:05:20 BoogieIcfgContainer [2020-11-22 13:05:20,545 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:05:20,546 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:05:20,546 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:05:20,546 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:05:20,547 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:18" (3/4) ... [2020-11-22 13:05:20,550 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-22 13:05:20,558 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-22 13:05:20,558 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-22 13:05:20,559 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 13:05:20,559 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 13:05:20,601 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1256864e-cdd2-443a-ab17-dfd7ac569f81/bin/utaipan/witness.graphml [2020-11-22 13:05:20,601 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:05:20,603 INFO L168 Benchmark]: Toolchain (without parser) took 3261.33 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 55.0 MB in the beginning and 109.9 MB in the end (delta: -54.9 MB). Peak memory consumption was 37.9 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:20,603 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 90.2 MB. Free memory was 62.9 MB in the beginning and 62.9 MB in the end (delta: 26.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:05:20,604 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.18 ms. Allocated memory is still 90.2 MB. Free memory was 54.8 MB in the beginning and 66.6 MB in the end (delta: -11.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:20,604 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.38 ms. Allocated memory is still 90.2 MB. Free memory was 66.6 MB in the beginning and 65.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:20,605 INFO L168 Benchmark]: Boogie Preprocessor took 19.00 ms. Allocated memory is still 90.2 MB. Free memory was 65.2 MB in the beginning and 64.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:05:20,615 INFO L168 Benchmark]: RCFGBuilder took 345.58 ms. Allocated memory is still 90.2 MB. Free memory was 64.2 MB in the beginning and 50.6 MB in the end (delta: 13.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:20,616 INFO L168 Benchmark]: TraceAbstraction took 2537.52 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 50.2 MB in the beginning and 38.9 MB in the end (delta: 11.3 MB). Peak memory consumption was 32.0 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:20,617 INFO L168 Benchmark]: Witness Printer took 55.81 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 38.9 MB in the beginning and 109.9 MB in the end (delta: -71.0 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:20,620 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 90.2 MB. Free memory was 62.9 MB in the beginning and 62.9 MB in the end (delta: 26.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 267.18 ms. Allocated memory is still 90.2 MB. Free memory was 54.8 MB in the beginning and 66.6 MB in the end (delta: -11.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.38 ms. Allocated memory is still 90.2 MB. Free memory was 66.6 MB in the beginning and 65.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.00 ms. Allocated memory is still 90.2 MB. Free memory was 65.2 MB in the beginning and 64.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 345.58 ms. Allocated memory is still 90.2 MB. Free memory was 64.2 MB in the beginning and 50.6 MB in the end (delta: 13.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2537.52 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 50.2 MB in the beginning and 38.9 MB in the end (delta: 11.3 MB). Peak memory consumption was 32.0 MB. Max. memory is 16.1 GB. * Witness Printer took 55.81 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 38.9 MB in the beginning and 109.9 MB in the end (delta: -71.0 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 11]: 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: 24]: Loop Invariant Derived loop invariant: ((k <= j && 0 < n) && j <= k) && 0 < k + 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 12 SDtfs, 5 SDslu, 10 SDs, 0 SdLazy, 22 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.9s 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 16 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 31 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 607 SizeOfPredicates, 8 NumberOfNonLiveVariables, 51 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 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...