./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2b.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ae284cc9-0c07-4941-94e6-b9dc90789ff7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ae284cc9-0c07-4941-94e6-b9dc90789ff7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ae284cc9-0c07-4941-94e6-b9dc90789ff7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ae284cc9-0c07-4941-94e6-b9dc90789ff7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ae284cc9-0c07-4941-94e6-b9dc90789ff7/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ae284cc9-0c07-4941-94e6-b9dc90789ff7/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8920989884f6f43fe034219867b1db3db8f5287c ................................................................................................................................................................................................................................................................................................... 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 0.1.24-678e011 [2019-11-19 22:46:23,579 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:46:23,581 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:46:23,592 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:46:23,599 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:46:23,601 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:46:23,603 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:46:23,605 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:46:23,609 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:46:23,618 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:46:23,619 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:46:23,621 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:46:23,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:46:23,624 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:46:23,625 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:46:23,627 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:46:23,628 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:46:23,631 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:46:23,634 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:46:23,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:46:23,640 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:46:23,643 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:46:23,645 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:46:23,648 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:46:23,651 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:46:23,652 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:46:23,652 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:46:23,654 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:46:23,655 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:46:23,657 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:46:23,657 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:46:23,658 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:46:23,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:46:23,659 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:46:23,661 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:46:23,661 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:46:23,662 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:46:23,662 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:46:23,662 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:46:23,664 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:46:23,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:46:23,666 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ae284cc9-0c07-4941-94e6-b9dc90789ff7/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-19 22:46:23,694 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:46:23,694 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:46:23,695 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:46:23,695 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:46:23,696 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:46:23,696 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:46:23,696 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 22:46:23,697 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:46:23,697 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:46:23,697 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 22:46:23,697 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 22:46:23,698 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 22:46:23,698 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-19 22:46:23,698 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:46:23,698 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:46:23,698 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 22:46:23,699 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:46:23,699 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:46:23,699 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 22:46:23,700 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 22:46:23,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 22:46:23,700 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:46:23,700 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 22:46:23,701 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 22:46:23,701 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 22:46:23,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 22:46:23,701 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 22:46:23,702 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_ae284cc9-0c07-4941-94e6-b9dc90789ff7/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 ! overflow) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8920989884f6f43fe034219867b1db3db8f5287c [2019-11-19 22:46:23,855 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:46:23,870 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:46:23,875 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:46:23,881 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:46:23,882 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:46:23,882 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ae284cc9-0c07-4941-94e6-b9dc90789ff7/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2b.c [2019-11-19 22:46:23,968 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ae284cc9-0c07-4941-94e6-b9dc90789ff7/bin/uautomizer/data/b3aa9d214/c2b9018cd3f74417ad2c329856ed7454/FLAG584b675ec [2019-11-19 22:46:24,345 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:46:24,345 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ae284cc9-0c07-4941-94e6-b9dc90789ff7/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2b.c [2019-11-19 22:46:24,350 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ae284cc9-0c07-4941-94e6-b9dc90789ff7/bin/uautomizer/data/b3aa9d214/c2b9018cd3f74417ad2c329856ed7454/FLAG584b675ec [2019-11-19 22:46:24,767 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ae284cc9-0c07-4941-94e6-b9dc90789ff7/bin/uautomizer/data/b3aa9d214/c2b9018cd3f74417ad2c329856ed7454 [2019-11-19 22:46:24,770 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:46:24,771 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:46:24,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:46:24,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:46:24,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:46:24,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:46:24" (1/1) ... [2019-11-19 22:46:24,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ca737a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:46:24, skipping insertion in model container [2019-11-19 22:46:24,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:46:24" (1/1) ... [2019-11-19 22:46:24,787 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:46:24,803 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:46:25,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:46:25,014 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:46:25,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:46:25,152 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:46:25,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:46:25 WrapperNode [2019-11-19 22:46:25,153 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:46:25,154 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:46:25,154 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:46:25,154 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:46:25,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:46:25" (1/1) ... [2019-11-19 22:46:25,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:46:25" (1/1) ... [2019-11-19 22:46:25,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:46:25,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:46:25,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:46:25,206 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:46:25,216 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:46:25" (1/1) ... [2019-11-19 22:46:25,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:46:25" (1/1) ... [2019-11-19 22:46:25,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:46:25" (1/1) ... [2019-11-19 22:46:25,227 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:46:25" (1/1) ... [2019-11-19 22:46:25,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:46:25" (1/1) ... [2019-11-19 22:46:25,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:46:25" (1/1) ... [2019-11-19 22:46:25,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:46:25" (1/1) ... [2019-11-19 22:46:25,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:46:25,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:46:25,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:46:25,240 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:46:25,241 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:46:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae284cc9-0c07-4941-94e6-b9dc90789ff7/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 [2019-11-19 22:46:25,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:46:25,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:46:25,614 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:46:25,614 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-19 22:46:25,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:46:25 BoogieIcfgContainer [2019-11-19 22:46:25,616 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:46:25,617 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 22:46:25,617 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 22:46:25,620 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 22:46:25,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:46:24" (1/3) ... [2019-11-19 22:46:25,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d97f07d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:46:25, skipping insertion in model container [2019-11-19 22:46:25,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:46:25" (2/3) ... [2019-11-19 22:46:25,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d97f07d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:46:25, skipping insertion in model container [2019-11-19 22:46:25,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:46:25" (3/3) ... [2019-11-19 22:46:25,624 INFO L109 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-Fig2b.c [2019-11-19 22:46:25,646 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 22:46:25,667 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 20 error locations. [2019-11-19 22:46:25,680 INFO L249 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2019-11-19 22:46:25,719 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 22:46:25,719 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 22:46:25,720 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 22:46:25,721 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:46:25,721 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:46:25,721 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 22:46:25,721 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:46:25,722 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 22:46:25,766 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2019-11-19 22:46:25,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-19 22:46:25,775 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:46:25,776 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-19 22:46:25,777 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 22:46:25,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:46:25,783 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-11-19 22:46:25,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:46:25,794 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221850215] [2019-11-19 22:46:25,794 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:46:25,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:46:25,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:46:25,979 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221850215] [2019-11-19 22:46:25,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:46:25,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-19 22:46:25,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764745788] [2019-11-19 22:46:25,988 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 22:46:25,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:46:25,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 22:46:25,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:46:26,001 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 3 states. [2019-11-19 22:46:26,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:46:26,121 INFO L93 Difference]: Finished difference Result 99 states and 116 transitions. [2019-11-19 22:46:26,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 22:46:26,123 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-11-19 22:46:26,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:46:26,132 INFO L225 Difference]: With dead ends: 99 [2019-11-19 22:46:26,132 INFO L226 Difference]: Without dead ends: 46 [2019-11-19 22:46:26,135 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:46:26,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-11-19 22:46:26,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2019-11-19 22:46:26,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-11-19 22:46:26,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2019-11-19 22:46:26,169 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 3 [2019-11-19 22:46:26,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:46:26,169 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2019-11-19 22:46:26,169 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 22:46:26,169 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2019-11-19 22:46:26,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-19 22:46:26,170 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:46:26,170 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-19 22:46:26,170 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 22:46:26,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:46:26,171 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2019-11-19 22:46:26,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:46:26,171 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923039445] [2019-11-19 22:46:26,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:46:26,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:46:26,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:46:26,192 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923039445] [2019-11-19 22:46:26,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:46:26,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 22:46:26,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741100988] [2019-11-19 22:46:26,195 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 22:46:26,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:46:26,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 22:46:26,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:46:26,195 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 3 states. [2019-11-19 22:46:26,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:46:26,258 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2019-11-19 22:46:26,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 22:46:26,259 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-19 22:46:26,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:46:26,260 INFO L225 Difference]: With dead ends: 44 [2019-11-19 22:46:26,261 INFO L226 Difference]: Without dead ends: 43 [2019-11-19 22:46:26,261 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:46:26,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-11-19 22:46:26,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2019-11-19 22:46:26,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-11-19 22:46:26,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2019-11-19 22:46:26,269 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 4 [2019-11-19 22:46:26,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:46:26,269 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2019-11-19 22:46:26,269 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 22:46:26,270 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2019-11-19 22:46:26,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-19 22:46:26,270 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:46:26,271 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-19 22:46:26,271 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 22:46:26,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:46:26,272 INFO L82 PathProgramCache]: Analyzing trace with hash 29862563, now seen corresponding path program 1 times [2019-11-19 22:46:26,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:46:26,272 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452067966] [2019-11-19 22:46:26,272 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:46:26,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:46:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:46:26,312 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:46:26,313 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 22:46:26,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:46:26 BoogieIcfgContainer [2019-11-19 22:46:26,332 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 22:46:26,332 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:46:26,333 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:46:26,333 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:46:26,334 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:46:25" (3/4) ... [2019-11-19 22:46:26,336 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-19 22:46:26,378 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ae284cc9-0c07-4941-94e6-b9dc90789ff7/bin/uautomizer/witness.graphml [2019-11-19 22:46:26,378 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:46:26,381 INFO L168 Benchmark]: Toolchain (without parser) took 1608.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -130.9 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2019-11-19 22:46:26,381 INFO L168 Benchmark]: CDTParser took 0.22 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. [2019-11-19 22:46:26,382 INFO L168 Benchmark]: CACSL2BoogieTranslator took 381.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -198.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-19 22:46:26,383 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.25 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. [2019-11-19 22:46:26,384 INFO L168 Benchmark]: Boogie Preprocessor took 34.81 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2019-11-19 22:46:26,384 INFO L168 Benchmark]: RCFGBuilder took 376.43 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: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-19 22:46:26,385 INFO L168 Benchmark]: TraceAbstraction took 715.52 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: 40.8 MB). Peak memory consumption was 40.8 MB. Max. memory is 11.5 GB. [2019-11-19 22:46:26,386 INFO L168 Benchmark]: Witness Printer took 46.12 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. [2019-11-19 22:46:26,391 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 381.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -198.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.25 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 34.81 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 376.43 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: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 715.52 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: 40.8 MB). Peak memory consumption was 40.8 MB. Max. memory is 11.5 GB. * Witness Printer took 46.12 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: - CounterExampleResult [Line: 19]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int x, y; [L15] x = __VERIFIER_nondet_int() [L16] y = __VERIFIER_nondet_int() [L17] COND TRUE x >= 2 [L18] EXPR x - 1 [L18] x = x - 1 [L19] y + x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 50 locations, 20 error locations. Result: UNSAFE, OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 69 SDtfs, 43 SDslu, 24 SDs, 0 SdLazy, 54 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 33 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...