./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig7.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows 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/working_dir_1a66591a-f5f6-4aaa-b7f5-661c0a8fb223/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1a66591a-f5f6-4aaa-b7f5-661c0a8fb223/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1a66591a-f5f6-4aaa-b7f5-661c0a8fb223/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1a66591a-f5f6-4aaa-b7f5-661c0a8fb223/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig7.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1a66591a-f5f6-4aaa-b7f5-661c0a8fb223/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1a66591a-f5f6-4aaa-b7f5-661c0a8fb223/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 3428809e66c8ffa9373e37ec3d02a46642c7f8bc ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-cad4683 [2019-10-22 08:57:04,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:57:04,479 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:57:04,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:57:04,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:57:04,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:57:04,490 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:57:04,491 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:57:04,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:57:04,494 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:57:04,495 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:57:04,496 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:57:04,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:57:04,497 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:57:04,497 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:57:04,498 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:57:04,499 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:57:04,500 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:57:04,501 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:57:04,502 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:57:04,504 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:57:04,505 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:57:04,506 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:57:04,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:57:04,508 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:57:04,508 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:57:04,509 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:57:04,509 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:57:04,510 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:57:04,510 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:57:04,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:57:04,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:57:04,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:57:04,512 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:57:04,513 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:57:04,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:57:04,514 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:57:04,514 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:57:04,514 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:57:04,515 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:57:04,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:57:04,516 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1a66591a-f5f6-4aaa-b7f5-661c0a8fb223/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-10-22 08:57:04,526 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:57:04,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:57:04,527 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:57:04,528 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:57:04,528 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:57:04,528 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:57:04,528 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:57:04,528 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:57:04,528 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:57:04,529 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:57:04,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:57:04,529 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:57:04,529 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-10-22 08:57:04,529 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:57:04,530 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:57:04,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:57:04,530 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:57:04,530 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:57:04,530 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:57:04,531 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:57:04,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:57:04,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:57:04,531 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:57:04,531 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:57:04,531 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:57:04,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:57:04,532 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:57:04,532 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/working_dir_1a66591a-f5f6-4aaa-b7f5-661c0a8fb223/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 -> 3428809e66c8ffa9373e37ec3d02a46642c7f8bc [2019-10-22 08:57:04,555 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:57:04,570 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:57:04,576 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:57:04,578 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:57:04,578 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:57:04,578 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1a66591a-f5f6-4aaa-b7f5-661c0a8fb223/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig7.c [2019-10-22 08:57:04,636 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1a66591a-f5f6-4aaa-b7f5-661c0a8fb223/bin/uautomizer/data/90ce48de7/c8193c4a7de6471094a6ab4b79c04a95/FLAG587a97cca [2019-10-22 08:57:05,024 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:57:05,025 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1a66591a-f5f6-4aaa-b7f5-661c0a8fb223/sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig7.c [2019-10-22 08:57:05,031 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1a66591a-f5f6-4aaa-b7f5-661c0a8fb223/bin/uautomizer/data/90ce48de7/c8193c4a7de6471094a6ab4b79c04a95/FLAG587a97cca [2019-10-22 08:57:05,433 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1a66591a-f5f6-4aaa-b7f5-661c0a8fb223/bin/uautomizer/data/90ce48de7/c8193c4a7de6471094a6ab4b79c04a95 [2019-10-22 08:57:05,438 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:57:05,439 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:57:05,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:05,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:57:05,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:57:05,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:05" (1/1) ... [2019-10-22 08:57:05,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58d32988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:05, skipping insertion in model container [2019-10-22 08:57:05,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:05" (1/1) ... [2019-10-22 08:57:05,452 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:57:05,464 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:57:05,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:05,594 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:57:05,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:05,687 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:57:05,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:05 WrapperNode [2019-10-22 08:57:05,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:05,688 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:05,688 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:57:05,688 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:57:05,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:05" (1/1) ... [2019-10-22 08:57:05,702 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:05" (1/1) ... [2019-10-22 08:57:05,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:05,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:57:05,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:57:05,719 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:57:05,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:05" (1/1) ... [2019-10-22 08:57:05,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:05" (1/1) ... [2019-10-22 08:57:05,726 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:05" (1/1) ... [2019-10-22 08:57:05,726 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:05" (1/1) ... [2019-10-22 08:57:05,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:05" (1/1) ... [2019-10-22 08:57:05,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:05" (1/1) ... [2019-10-22 08:57:05,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:05" (1/1) ... [2019-10-22 08:57:05,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:57:05,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:57:05,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:57:05,737 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:57:05,738 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1a66591a-f5f6-4aaa-b7f5-661c0a8fb223/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 [2019-10-22 08:57:05,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:57:05,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:57:05,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:57:05,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:57:05,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:57:05,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:57:05,929 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:57:05,929 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 08:57:05,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:05 BoogieIcfgContainer [2019-10-22 08:57:05,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:57:05,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:57:05,931 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:57:05,934 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:57:05,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:57:05" (1/3) ... [2019-10-22 08:57:05,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@738ce48f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:05, skipping insertion in model container [2019-10-22 08:57:05,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:05" (2/3) ... [2019-10-22 08:57:05,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@738ce48f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:05, skipping insertion in model container [2019-10-22 08:57:05,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:05" (3/3) ... [2019-10-22 08:57:05,937 INFO L109 eAbstractionObserver]: Analyzing ICFG HeizmannHoenickeLeikePodelski-ATVA2013-Fig7.c [2019-10-22 08:57:05,946 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:57:05,953 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-10-22 08:57:05,963 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-10-22 08:57:05,982 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:57:05,983 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:57:05,983 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:57:05,983 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:57:05,983 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:57:05,983 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:57:05,983 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:57:05,983 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:57:05,995 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-10-22 08:57:06,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 08:57:06,001 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:06,001 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:57:06,003 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 08:57:06,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:06,008 INFO L82 PathProgramCache]: Analyzing trace with hash 889574220, now seen corresponding path program 1 times [2019-10-22 08:57:06,014 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:06,015 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259598103] [2019-10-22 08:57:06,015 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:06,015 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:06,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:06,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:06,151 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259598103] [2019-10-22 08:57:06,152 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:06,152 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:57:06,152 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215240376] [2019-10-22 08:57:06,156 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:57:06,156 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:06,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:57:06,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:57:06,168 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 4 states. [2019-10-22 08:57:06,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:06,228 INFO L93 Difference]: Finished difference Result 60 states and 71 transitions. [2019-10-22 08:57:06,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:57:06,230 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-10-22 08:57:06,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:06,236 INFO L225 Difference]: With dead ends: 60 [2019-10-22 08:57:06,236 INFO L226 Difference]: Without dead ends: 35 [2019-10-22 08:57:06,239 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:57:06,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-10-22 08:57:06,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 24. [2019-10-22 08:57:06,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-10-22 08:57:06,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2019-10-22 08:57:06,269 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 6 [2019-10-22 08:57:06,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:06,269 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2019-10-22 08:57:06,269 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:57:06,269 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2019-10-22 08:57:06,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 08:57:06,270 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:06,270 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:06,270 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 08:57:06,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:06,271 INFO L82 PathProgramCache]: Analyzing trace with hash 180741427, now seen corresponding path program 1 times [2019-10-22 08:57:06,271 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:06,271 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066391727] [2019-10-22 08:57:06,271 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:06,271 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:06,272 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:06,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:06,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:06,305 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066391727] [2019-10-22 08:57:06,305 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:06,305 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:57:06,305 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826454363] [2019-10-22 08:57:06,306 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:57:06,307 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:06,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:57:06,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:57:06,307 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand 3 states. [2019-10-22 08:57:06,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:06,323 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2019-10-22 08:57:06,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:57:06,324 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-10-22 08:57:06,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:06,325 INFO L225 Difference]: With dead ends: 35 [2019-10-22 08:57:06,325 INFO L226 Difference]: Without dead ends: 24 [2019-10-22 08:57:06,326 INFO L600 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 [2019-10-22 08:57:06,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-10-22 08:57:06,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-10-22 08:57:06,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-10-22 08:57:06,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2019-10-22 08:57:06,329 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 8 [2019-10-22 08:57:06,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:06,329 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2019-10-22 08:57:06,329 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:57:06,330 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2019-10-22 08:57:06,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 08:57:06,330 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:06,330 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:06,331 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 08:57:06,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:06,331 INFO L82 PathProgramCache]: Analyzing trace with hash -869586168, now seen corresponding path program 1 times [2019-10-22 08:57:06,331 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:06,331 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495763284] [2019-10-22 08:57:06,331 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:06,332 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:06,332 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:06,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:06,377 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:06,377 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495763284] [2019-10-22 08:57:06,377 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125128095] [2019-10-22 08:57:06,377 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1a66591a-f5f6-4aaa-b7f5-661c0a8fb223/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 [2019-10-22 08:57:06,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:06,424 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 08:57:06,428 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:06,465 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:06,465 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:57:06,465 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2019-10-22 08:57:06,466 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275505111] [2019-10-22 08:57:06,466 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:57:06,466 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:06,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:57:06,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:57:06,467 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 8 states. [2019-10-22 08:57:06,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:06,535 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2019-10-22 08:57:06,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 08:57:06,535 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2019-10-22 08:57:06,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:06,536 INFO L225 Difference]: With dead ends: 41 [2019-10-22 08:57:06,536 INFO L226 Difference]: Without dead ends: 40 [2019-10-22 08:57:06,537 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-10-22 08:57:06,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-10-22 08:57:06,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 27. [2019-10-22 08:57:06,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-22 08:57:06,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2019-10-22 08:57:06,540 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 10 [2019-10-22 08:57:06,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:06,540 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2019-10-22 08:57:06,541 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:57:06,541 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2019-10-22 08:57:06,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 08:57:06,541 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:06,541 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2019-10-22 08:57:06,742 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:57:06,743 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 08:57:06,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:06,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1187367381, now seen corresponding path program 1 times [2019-10-22 08:57:06,743 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:06,743 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359968675] [2019-10-22 08:57:06,743 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:06,744 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:06,744 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:06,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:06,801 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:06,801 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359968675] [2019-10-22 08:57:06,801 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245051425] [2019-10-22 08:57:06,802 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1a66591a-f5f6-4aaa-b7f5-661c0a8fb223/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 [2019-10-22 08:57:06,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:06,835 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 08:57:06,836 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:06,858 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:06,858 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-22 08:57:06,858 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2019-10-22 08:57:06,858 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562442682] [2019-10-22 08:57:06,859 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:57:06,859 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:06,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:57:06,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:57:06,859 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand 6 states. [2019-10-22 08:57:06,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:06,926 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2019-10-22 08:57:06,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:57:06,927 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2019-10-22 08:57:06,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:06,928 INFO L225 Difference]: With dead ends: 27 [2019-10-22 08:57:06,928 INFO L226 Difference]: Without dead ends: 26 [2019-10-22 08:57:06,928 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2019-10-22 08:57:06,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-10-22 08:57:06,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-10-22 08:57:06,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-10-22 08:57:06,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2019-10-22 08:57:06,931 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 11 [2019-10-22 08:57:06,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:06,932 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2019-10-22 08:57:06,932 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:57:06,932 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2019-10-22 08:57:06,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 08:57:06,932 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:06,932 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:07,138 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:57:07,138 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 08:57:07,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:07,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1844723183, now seen corresponding path program 1 times [2019-10-22 08:57:07,139 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:07,139 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623641321] [2019-10-22 08:57:07,139 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:07,139 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:07,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:07,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:07,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:07,230 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623641321] [2019-10-22 08:57:07,230 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793191246] [2019-10-22 08:57:07,230 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1a66591a-f5f6-4aaa-b7f5-661c0a8fb223/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 [2019-10-22 08:57:07,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:07,265 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-22 08:57:07,266 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:07,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:57:07,285 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-22 08:57:07,285 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2019-10-22 08:57:07,285 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678555756] [2019-10-22 08:57:07,285 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:57:07,285 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:07,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:57:07,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:57:07,286 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand 3 states. [2019-10-22 08:57:07,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:07,317 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2019-10-22 08:57:07,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:57:07,317 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-10-22 08:57:07,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:07,318 INFO L225 Difference]: With dead ends: 36 [2019-10-22 08:57:07,318 INFO L226 Difference]: Without dead ends: 35 [2019-10-22 08:57:07,319 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:57:07,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-10-22 08:57:07,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 29. [2019-10-22 08:57:07,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-10-22 08:57:07,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2019-10-22 08:57:07,324 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 12 [2019-10-22 08:57:07,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:07,325 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2019-10-22 08:57:07,325 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:57:07,325 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2019-10-22 08:57:07,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 08:57:07,325 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:07,326 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:07,526 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:57:07,526 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 08:57:07,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:07,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1351843898, now seen corresponding path program 1 times [2019-10-22 08:57:07,527 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:07,527 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229802157] [2019-10-22 08:57:07,527 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:07,527 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:07,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:07,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:07,555 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:57:07,555 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229802157] [2019-10-22 08:57:07,555 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:07,555 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:57:07,556 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803986986] [2019-10-22 08:57:07,556 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:57:07,556 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:07,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:57:07,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:57:07,556 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 3 states. [2019-10-22 08:57:07,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:07,587 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2019-10-22 08:57:07,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:57:07,588 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-10-22 08:57:07,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:07,588 INFO L225 Difference]: With dead ends: 35 [2019-10-22 08:57:07,589 INFO L226 Difference]: Without dead ends: 34 [2019-10-22 08:57:07,589 INFO L600 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 [2019-10-22 08:57:07,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-10-22 08:57:07,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 30. [2019-10-22 08:57:07,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-10-22 08:57:07,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2019-10-22 08:57:07,592 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 13 [2019-10-22 08:57:07,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:07,593 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2019-10-22 08:57:07,593 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:57:07,593 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2019-10-22 08:57:07,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 08:57:07,593 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:07,593 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:07,594 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 08:57:07,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:07,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1042512047, now seen corresponding path program 1 times [2019-10-22 08:57:07,594 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:07,594 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068518843] [2019-10-22 08:57:07,594 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:07,594 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:07,595 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:07,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:07,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:07,640 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:07,640 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:57:07,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:57:07 BoogieIcfgContainer [2019-10-22 08:57:07,663 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:57:07,663 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:57:07,663 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:57:07,663 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:57:07,664 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:05" (3/4) ... [2019-10-22 08:57:07,666 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 08:57:07,697 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1a66591a-f5f6-4aaa-b7f5-661c0a8fb223/bin/uautomizer/witness.graphml [2019-10-22 08:57:07,697 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:57:07,699 INFO L168 Benchmark]: Toolchain (without parser) took 2259.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 944.7 MB in the beginning and 992.4 MB in the end (delta: -47.7 MB). Peak memory consumption was 92.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:07,699 INFO L168 Benchmark]: CDTParser took 0.16 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. [2019-10-22 08:57:07,700 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -190.5 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:07,700 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.85 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. [2019-10-22 08:57:07,700 INFO L168 Benchmark]: Boogie Preprocessor took 17.94 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. [2019-10-22 08:57:07,700 INFO L168 Benchmark]: RCFGBuilder took 193.60 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:07,701 INFO L168 Benchmark]: TraceAbstraction took 1731.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 992.4 MB in the end (delta: 120.4 MB). Peak memory consumption was 120.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:07,701 INFO L168 Benchmark]: Witness Printer took 33.71 ms. Allocated memory is still 1.2 GB. Free memory is still 992.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:07,704 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 247.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -190.5 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.85 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 17.94 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 193.60 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1731.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 992.4 MB in the end (delta: 120.4 MB). Peak memory consumption was 120.4 MB. Max. memory is 11.5 GB. * Witness Printer took 33.71 ms. Allocated memory is still 1.2 GB. Free memory is still 992.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 26]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int a_length = __VERIFIER_nondet_int(); [L13] COND FALSE !(a_length < 1) [L16] int a[a_length]; [L17] int j = 0; [L17] COND TRUE j < a_length [L18] a[j] = __VERIFIER_nondet_int() [L17] j++ [L17] COND FALSE !(j < a_length) [L20] int offset = 1; [L21] int i = 0; [L22] COND TRUE i < a_length [L23] EXPR a[i] [L23] COND FALSE !(a[i] < 0) [L26] EXPR i + offset [L26] EXPR a[i] [L26] i + offset + a[i] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 6 error locations. Result: UNSAFE, OverallTime: 1.6s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 97 SDtfs, 86 SDslu, 155 SDs, 0 SdLazy, 125 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=6, 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, 6 MinimizatonAttempts, 34 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 2282 SizeOfPredicates, 4 NumberOfNonLiveVariables, 121 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 6/17 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...