./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/sum02-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d5964968-0c9e-4758-b481-621fdee15cfe/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d5964968-0c9e-4758-b481-621fdee15cfe/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d5964968-0c9e-4758-b481-621fdee15cfe/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d5964968-0c9e-4758-b481-621fdee15cfe/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/sum02-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d5964968-0c9e-4758-b481-621fdee15cfe/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d5964968-0c9e-4758-b481-621fdee15cfe/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6bdf3d7283c8010b8178f4441a6a14e3308ae4a9 ............................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 20:10:18,600 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:10:18,602 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:10:18,618 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:10:18,618 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:10:18,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:10:18,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:10:18,631 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:10:18,636 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:10:18,640 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:10:18,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:10:18,643 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:10:18,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:10:18,646 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:10:18,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:10:18,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:10:18,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:10:18,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:10:18,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:10:18,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:10:18,659 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:10:18,661 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:10:18,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:10:18,665 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:10:18,669 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:10:18,669 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:10:18,669 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:10:18,671 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:10:18,671 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:10:18,672 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:10:18,672 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:10:18,673 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:10:18,674 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:10:18,674 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:10:18,676 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:10:18,677 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:10:18,678 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:10:18,678 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:10:18,678 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:10:18,679 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:10:18,680 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:10:18,681 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d5964968-0c9e-4758-b481-621fdee15cfe/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 20:10:18,708 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:10:18,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:10:18,718 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:10:18,719 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:10:18,719 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:10:18,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:10:18,720 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:10:18,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:10:18,720 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:10:18,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:10:18,721 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:10:18,721 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:10:18,721 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:10:18,722 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:10:18,722 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:10:18,724 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:10:18,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:10:18,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:10:18,725 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:10:18,725 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:10:18,726 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:10:18,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:10:18,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:10:18,727 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:10:18,727 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:10:18,728 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:10:18,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 20:10:18,728 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:10:18,729 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_d5964968-0c9e-4758-b481-621fdee15cfe/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(__VERIFIER_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 -> 6bdf3d7283c8010b8178f4441a6a14e3308ae4a9 [2019-11-15 20:10:18,756 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:10:18,767 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:10:18,770 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:10:18,772 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:10:18,772 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:10:18,773 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d5964968-0c9e-4758-b481-621fdee15cfe/bin/uautomizer/../../sv-benchmarks/c/bitvector/sum02-1.c [2019-11-15 20:10:18,829 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d5964968-0c9e-4758-b481-621fdee15cfe/bin/uautomizer/data/e3ba7a32a/c771487e56af447bb77ad3c6fb527cad/FLAGe82932c85 [2019-11-15 20:10:19,204 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:10:19,205 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d5964968-0c9e-4758-b481-621fdee15cfe/sv-benchmarks/c/bitvector/sum02-1.c [2019-11-15 20:10:19,210 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d5964968-0c9e-4758-b481-621fdee15cfe/bin/uautomizer/data/e3ba7a32a/c771487e56af447bb77ad3c6fb527cad/FLAGe82932c85 [2019-11-15 20:10:19,660 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d5964968-0c9e-4758-b481-621fdee15cfe/bin/uautomizer/data/e3ba7a32a/c771487e56af447bb77ad3c6fb527cad [2019-11-15 20:10:19,666 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:10:19,668 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:10:19,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:10:19,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:10:19,675 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:10:19,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:10:19" (1/1) ... [2019-11-15 20:10:19,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35ee8f44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:10:19, skipping insertion in model container [2019-11-15 20:10:19,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:10:19" (1/1) ... [2019-11-15 20:10:19,688 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:10:19,714 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:10:20,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:10:20,015 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:10:20,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:10:20,044 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:10:20,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:10:20 WrapperNode [2019-11-15 20:10:20,045 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:10:20,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:10:20,046 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:10:20,046 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:10:20,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:10:20" (1/1) ... [2019-11-15 20:10:20,059 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:10:20" (1/1) ... [2019-11-15 20:10:20,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:10:20,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:10:20,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:10:20,078 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:10:20,087 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:10:20" (1/1) ... [2019-11-15 20:10:20,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:10:20" (1/1) ... [2019-11-15 20:10:20,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:10:20" (1/1) ... [2019-11-15 20:10:20,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:10:20" (1/1) ... [2019-11-15 20:10:20,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:10:20" (1/1) ... [2019-11-15 20:10:20,094 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:10:20" (1/1) ... [2019-11-15 20:10:20,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:10:20" (1/1) ... [2019-11-15 20:10:20,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:10:20,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:10:20,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:10:20,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:10:20,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:10:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d5964968-0c9e-4758-b481-621fdee15cfe/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 [2019-11-15 20:10:20,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:10:20,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:10:20,303 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:10:20,303 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-15 20:10:20,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:10:20 BoogieIcfgContainer [2019-11-15 20:10:20,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:10:20,306 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:10:20,306 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:10:20,308 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:10:20,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:10:19" (1/3) ... [2019-11-15 20:10:20,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45f6aedd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:10:20, skipping insertion in model container [2019-11-15 20:10:20,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:10:20" (2/3) ... [2019-11-15 20:10:20,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45f6aedd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:10:20, skipping insertion in model container [2019-11-15 20:10:20,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:10:20" (3/3) ... [2019-11-15 20:10:20,312 INFO L109 eAbstractionObserver]: Analyzing ICFG sum02-1.c [2019-11-15 20:10:20,321 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:10:20,328 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 20:10:20,338 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 20:10:20,359 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:10:20,360 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:10:20,360 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:10:20,360 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:10:20,360 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:10:20,361 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:10:20,361 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:10:20,361 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:10:20,375 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-15 20:10:20,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-15 20:10:20,380 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:10:20,381 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-15 20:10:20,383 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:10:20,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:10:20,389 INFO L82 PathProgramCache]: Analyzing trace with hash 29776202, now seen corresponding path program 1 times [2019-11-15 20:10:20,397 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:10:20,398 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376415257] [2019-11-15 20:10:20,398 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:10:20,398 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:10:20,398 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:10:20,468 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-15 20:10:20,468 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [646997378] [2019-11-15 20:10:20,469 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d5964968-0c9e-4758-b481-621fdee15cfe/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 [2019-11-15 20:10:20,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:10:20,515 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 20:10:20,520 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:10:20,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:10:20,558 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376415257] [2019-11-15 20:10:20,559 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-15 20:10:20,559 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [646997378] [2019-11-15 20:10:20,559 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:10:20,560 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 20:10:20,560 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566754832] [2019-11-15 20:10:20,564 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 20:10:20,564 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:10:20,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 20:10:20,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 20:10:20,581 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 3 states. [2019-11-15 20:10:20,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:10:20,608 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2019-11-15 20:10:20,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 20:10:20,610 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-15 20:10:20,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:10:20,619 INFO L225 Difference]: With dead ends: 19 [2019-11-15 20:10:20,619 INFO L226 Difference]: Without dead ends: 9 [2019-11-15 20:10:20,622 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 20:10:20,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-11-15 20:10:20,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2019-11-15 20:10:20,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-15 20:10:20,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-11-15 20:10:20,654 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2019-11-15 20:10:20,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:10:20,655 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-11-15 20:10:20,655 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 20:10:20,655 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-11-15 20:10:20,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-15 20:10:20,656 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:10:20,656 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:10:20,859 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 20:10:20,859 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:10:20,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:10:20,860 INFO L82 PathProgramCache]: Analyzing trace with hash -1396608660, now seen corresponding path program 1 times [2019-11-15 20:10:20,860 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:10:20,860 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671505254] [2019-11-15 20:10:20,860 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:10:20,861 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:10:20,861 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:10:20,876 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-15 20:10:20,876 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1701618356] [2019-11-15 20:10:20,876 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d5964968-0c9e-4758-b481-621fdee15cfe/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 20:10:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:10:20,906 WARN L254 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-15 20:10:20,907 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:10:20,948 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:10:20,949 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671505254] [2019-11-15 20:10:20,949 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-15 20:10:20,949 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701618356] [2019-11-15 20:10:20,949 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-11-15 20:10:20,949 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2019-11-15 20:10:20,950 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570085634] [2019-11-15 20:10:20,951 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 20:10:20,951 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:10:20,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 20:10:20,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-15 20:10:20,952 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 5 states. [2019-11-15 20:10:21,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:10:21,011 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2019-11-15 20:10:21,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 20:10:21,011 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-11-15 20:10:21,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:10:21,012 INFO L225 Difference]: With dead ends: 14 [2019-11-15 20:10:21,012 INFO L226 Difference]: Without dead ends: 10 [2019-11-15 20:10:21,013 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-15 20:10:21,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-11-15 20:10:21,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-11-15 20:10:21,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-15 20:10:21,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-11-15 20:10:21,016 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7 [2019-11-15 20:10:21,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:10:21,017 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-11-15 20:10:21,017 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 20:10:21,017 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-11-15 20:10:21,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-15 20:10:21,018 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:10:21,018 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2019-11-15 20:10:21,219 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 20:10:21,219 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:10:21,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:10:21,220 INFO L82 PathProgramCache]: Analyzing trace with hash -2057893618, now seen corresponding path program 2 times [2019-11-15 20:10:21,220 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:10:21,220 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827807743] [2019-11-15 20:10:21,221 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:10:21,221 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:10:21,221 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:10:21,236 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-15 20:10:21,236 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1740378824] [2019-11-15 20:10:21,237 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d5964968-0c9e-4758-b481-621fdee15cfe/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 20:10:21,403 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 20:10:21,404 INFO L250 tOrderPrioritization]: Conjunction of SSA is unknown [2019-11-15 20:10:21,404 WARN L162 tionRefinementEngine]: Strategy CAMEL was unsuccessful and could not determine trace feasibility [2019-11-15 20:10:21,405 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 20:10:21,608 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 20:10:21,623 WARN L226 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2019-11-15 20:10:21,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 08:10:21 BoogieIcfgContainer [2019-11-15 20:10:21,624 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 20:10:21,625 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:10:21,625 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:10:21,625 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:10:21,625 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:10:20" (3/4) ... [2019-11-15 20:10:21,629 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 20:10:21,629 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:10:21,631 INFO L168 Benchmark]: Toolchain (without parser) took 1962.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -119.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-15 20:10:21,632 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:10:21,633 INFO L168 Benchmark]: CACSL2BoogieTranslator took 376.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -187.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-15 20:10:21,634 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:10:21,636 INFO L168 Benchmark]: Boogie Preprocessor took 18.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:10:21,637 INFO L168 Benchmark]: RCFGBuilder took 207.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-15 20:10:21,638 INFO L168 Benchmark]: TraceAbstraction took 1318.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 11.5 GB. [2019-11-15 20:10:21,645 INFO L168 Benchmark]: Witness Printer took 4.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:10:21,648 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 376.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -187.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 207.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1318.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 11.5 GB. * Witness Printer took 4.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 5]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L11] unsigned int i, n=__VERIFIER_nondet_uint(), sn=0; [L11] unsigned int i, n=__VERIFIER_nondet_uint(), sn=0; [L12] i=0 [L12] COND TRUE i<=n [L13] sn = sn + i [L12] i++ [L12] COND TRUE i<=n [L13] sn = sn + i [L12] i++ [L12] COND FALSE !(i<=n) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: UNKNOWN, OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 12 SDtfs, 2 SDslu, 15 SDs, 0 SdLazy, 18 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 SizeOfPredicates, 8 NumberOfNonLiveVariables, 37 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...