./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ae123855-22b5-411d-8f28-20b0a22a5c1f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ae123855-22b5-411d-8f28-20b0a22a5c1f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ae123855-22b5-411d-8f28-20b0a22a5c1f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ae123855-22b5-411d-8f28-20b0a22a5c1f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ae123855-22b5-411d-8f28-20b0a22a5c1f/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ae123855-22b5-411d-8f28-20b0a22a5c1f/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 413fc6a41e04b7b618ff9ab274418b4a8dcf040d .................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 16:35:12,938 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:35:12,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:35:12,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:35:12,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:35:12,948 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:35:12,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:35:12,951 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:35:12,953 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:35:12,954 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:35:12,954 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:35:12,955 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:35:12,956 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:35:12,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:35:12,957 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:35:12,959 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:35:12,959 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:35:12,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:35:12,962 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:35:12,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:35:12,965 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:35:12,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:35:12,966 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:35:12,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:35:12,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:35:12,969 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:35:12,969 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:35:12,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:35:12,970 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:35:12,970 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:35:12,970 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:35:12,971 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:35:12,971 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:35:12,972 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:35:12,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:35:12,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:35:12,973 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:35:12,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:35:12,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:35:12,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:35:12,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:35:12,975 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ae123855-22b5-411d-8f28-20b0a22a5c1f/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-12-07 16:35:12,984 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:35:12,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:35:12,985 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:35:12,985 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:35:12,985 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 16:35:12,986 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:35:12,986 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 16:35:12,986 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:35:12,986 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:35:12,986 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:35:12,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:35:12,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:35:12,986 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-12-07 16:35:12,987 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:35:12,987 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:35:12,987 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:35:12,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:35:12,987 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:35:12,987 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:35:12,988 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:35:12,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:35:12,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:35:12,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:35:12,988 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:35:12,988 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 16:35:12,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 16:35:12,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:35:12,989 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:35:12,989 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_ae123855-22b5-411d-8f28-20b0a22a5c1f/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 -> 413fc6a41e04b7b618ff9ab274418b4a8dcf040d [2019-12-07 16:35:13,095 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:35:13,105 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:35:13,108 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:35:13,109 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:35:13,110 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:35:13,110 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ae123855-22b5-411d-8f28-20b0a22a5c1f/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b.c [2019-12-07 16:35:13,156 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ae123855-22b5-411d-8f28-20b0a22a5c1f/bin/uautomizer/data/d2200c847/5e477997687940e7a901c81ac66ba28f/FLAG06957cc57 [2019-12-07 16:35:13,570 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:35:13,570 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ae123855-22b5-411d-8f28-20b0a22a5c1f/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b.c [2019-12-07 16:35:13,574 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ae123855-22b5-411d-8f28-20b0a22a5c1f/bin/uautomizer/data/d2200c847/5e477997687940e7a901c81ac66ba28f/FLAG06957cc57 [2019-12-07 16:35:13,583 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ae123855-22b5-411d-8f28-20b0a22a5c1f/bin/uautomizer/data/d2200c847/5e477997687940e7a901c81ac66ba28f [2019-12-07 16:35:13,585 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:35:13,585 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:35:13,586 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:35:13,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:35:13,588 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:35:13,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:35:13" (1/1) ... [2019-12-07 16:35:13,591 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f2c5fa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:13, skipping insertion in model container [2019-12-07 16:35:13,591 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:35:13" (1/1) ... [2019-12-07 16:35:13,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:35:13,605 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:35:13,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:35:13,701 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:35:13,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:35:13,753 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:35:13,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:13 WrapperNode [2019-12-07 16:35:13,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:35:13,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:35:13,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:35:13,754 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:35:13,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:13" (1/1) ... [2019-12-07 16:35:13,763 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:13" (1/1) ... [2019-12-07 16:35:13,773 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:35:13,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:35:13,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:35:13,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:35:13,779 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:13" (1/1) ... [2019-12-07 16:35:13,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:13" (1/1) ... [2019-12-07 16:35:13,780 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:13" (1/1) ... [2019-12-07 16:35:13,780 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:13" (1/1) ... [2019-12-07 16:35:13,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:13" (1/1) ... [2019-12-07 16:35:13,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:13" (1/1) ... [2019-12-07 16:35:13,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:13" (1/1) ... [2019-12-07 16:35:13,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:35:13,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:35:13,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:35:13,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:35:13,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae123855-22b5-411d-8f28-20b0a22a5c1f/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 [2019-12-07 16:35:13,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:35:13,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:35:13,918 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:35:13,918 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 16:35:13,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:35:13 BoogieIcfgContainer [2019-12-07 16:35:13,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:35:13,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:35:13,920 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:35:13,921 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:35:13,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:35:13" (1/3) ... [2019-12-07 16:35:13,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394300f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:35:13, skipping insertion in model container [2019-12-07 16:35:13,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:13" (2/3) ... [2019-12-07 16:35:13,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394300f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:35:13, skipping insertion in model container [2019-12-07 16:35:13,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:35:13" (3/3) ... [2019-12-07 16:35:13,923 INFO L109 eAbstractionObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig8b.c [2019-12-07 16:35:13,930 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:35:13,933 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-07 16:35:13,941 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-07 16:35:13,955 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:35:13,955 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 16:35:13,955 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:35:13,955 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:35:13,955 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:35:13,955 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:35:13,955 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:35:13,955 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:35:13,964 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-12-07 16:35:13,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 16:35:13,967 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:35:13,968 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 16:35:13,968 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:35:13,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:35:13,972 INFO L82 PathProgramCache]: Analyzing trace with hash 29684906, now seen corresponding path program 1 times [2019-12-07 16:35:13,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:35:13,977 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334161015] [2019-12-07 16:35:13,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:35:14,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:35:14,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:35:14,110 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334161015] [2019-12-07 16:35:14,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:35:14,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 16:35:14,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415955413] [2019-12-07 16:35:14,114 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 16:35:14,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:35:14,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 16:35:14,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 16:35:14,125 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 5 states. [2019-12-07 16:35:14,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:35:14,193 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2019-12-07 16:35:14,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 16:35:14,195 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2019-12-07 16:35:14,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:35:14,201 INFO L225 Difference]: With dead ends: 30 [2019-12-07 16:35:14,201 INFO L226 Difference]: Without dead ends: 13 [2019-12-07 16:35:14,203 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 16:35:14,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-12-07 16:35:14,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2019-12-07 16:35:14,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-07 16:35:14,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2019-12-07 16:35:14,225 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 5 [2019-12-07 16:35:14,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:35:14,226 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-12-07 16:35:14,226 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 16:35:14,226 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2019-12-07 16:35:14,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 16:35:14,226 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:35:14,226 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 16:35:14,227 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:35:14,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:35:14,227 INFO L82 PathProgramCache]: Analyzing trace with hash 920232138, now seen corresponding path program 1 times [2019-12-07 16:35:14,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:35:14,227 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603068429] [2019-12-07 16:35:14,227 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:35:14,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:35:14,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:35:14,247 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603068429] [2019-12-07 16:35:14,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:35:14,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 16:35:14,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819364200] [2019-12-07 16:35:14,249 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 16:35:14,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:35:14,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:35:14,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:35:14,249 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 3 states. [2019-12-07 16:35:14,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:35:14,262 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2019-12-07 16:35:14,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:35:14,263 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-12-07 16:35:14,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:35:14,263 INFO L225 Difference]: With dead ends: 11 [2019-12-07 16:35:14,263 INFO L226 Difference]: Without dead ends: 10 [2019-12-07 16:35:14,264 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 [2019-12-07 16:35:14,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-12-07 16:35:14,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-12-07 16:35:14,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-12-07 16:35:14,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2019-12-07 16:35:14,267 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 6 [2019-12-07 16:35:14,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:35:14,267 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2019-12-07 16:35:14,267 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 16:35:14,268 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2019-12-07 16:35:14,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 16:35:14,268 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:35:14,268 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2019-12-07 16:35:14,268 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:35:14,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:35:14,268 INFO L82 PathProgramCache]: Analyzing trace with hash -140584349, now seen corresponding path program 1 times [2019-12-07 16:35:14,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:35:14,269 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650923217] [2019-12-07 16:35:14,269 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:35:14,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:35:14,328 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:35:14,329 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650923217] [2019-12-07 16:35:14,329 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398926198] [2019-12-07 16:35:14,329 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae123855-22b5-411d-8f28-20b0a22a5c1f/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 [2019-12-07 16:35:14,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:35:14,356 INFO L264 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 16:35:14,360 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:35:14,390 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 16:35:14,390 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 16:35:14,390 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2019-12-07 16:35:14,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509772912] [2019-12-07 16:35:14,391 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 16:35:14,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:35:14,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 16:35:14,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-12-07 16:35:14,391 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand 7 states. [2019-12-07 16:35:14,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:35:14,419 INFO L93 Difference]: Finished difference Result 12 states and 15 transitions. [2019-12-07 16:35:14,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 16:35:14,420 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 9 [2019-12-07 16:35:14,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:35:14,420 INFO L225 Difference]: With dead ends: 12 [2019-12-07 16:35:14,420 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 16:35:14,420 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2019-12-07 16:35:14,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 16:35:14,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 16:35:14,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 16:35:14,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 16:35:14,421 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2019-12-07 16:35:14,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:35:14,421 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:35:14,421 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 16:35:14,421 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 16:35:14,421 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 16:35:14,622 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 16:35:14,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 16:35:14,671 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-12-07 16:35:14,671 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 16:35:14,671 INFO L246 CegarLoopResult]: For program point L19(lines 19 23) no Hoare annotation was computed. [2019-12-07 16:35:14,671 INFO L246 CegarLoopResult]: For program point L17(lines 17 25) no Hoare annotation was computed. [2019-12-07 16:35:14,672 INFO L242 CegarLoopResult]: At program point L19-2(lines 18 24) the Hoare annotation is: (and (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648)) (<= ULTIMATE.start_main_~M~0 2147483647)) [2019-12-07 16:35:14,672 INFO L246 CegarLoopResult]: For program point L17-1(lines 17 25) no Hoare annotation was computed. [2019-12-07 16:35:14,672 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-12-07 16:35:14,672 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 16:35:14,672 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 16:35:14,673 INFO L242 CegarLoopResult]: At program point L26(lines 13 27) the Hoare annotation is: (or (= ULTIMATE.start_main_~M~0 ULTIMATE.start_main_~x~0) (<= (+ ULTIMATE.start_main_~M~0 1) ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 2147483646)) [2019-12-07 16:35:14,673 INFO L246 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2019-12-07 16:35:14,673 INFO L246 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2019-12-07 16:35:14,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 04:35:14 BoogieIcfgContainer [2019-12-07 16:35:14,691 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 16:35:14,692 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:35:14,692 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:35:14,692 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:35:14,692 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:35:13" (3/4) ... [2019-12-07 16:35:14,695 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 16:35:14,703 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 16:35:14,703 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 16:35:14,731 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ae123855-22b5-411d-8f28-20b0a22a5c1f/bin/uautomizer/witness.graphml [2019-12-07 16:35:14,731 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:35:14,733 INFO L168 Benchmark]: Toolchain (without parser) took 1146.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -113.5 MB). Peak memory consumption was 42.2 MB. Max. memory is 11.5 GB. [2019-12-07 16:35:14,733 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:35:14,733 INFO L168 Benchmark]: CACSL2BoogieTranslator took 167.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -203.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 16:35:14,734 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.84 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. [2019-12-07 16:35:14,734 INFO L168 Benchmark]: Boogie Preprocessor took 11.29 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. [2019-12-07 16:35:14,735 INFO L168 Benchmark]: RCFGBuilder took 133.91 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: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2019-12-07 16:35:14,735 INFO L168 Benchmark]: TraceAbstraction took 772.01 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: 75.9 MB). Peak memory consumption was 75.9 MB. Max. memory is 11.5 GB. [2019-12-07 16:35:14,735 INFO L168 Benchmark]: Witness Printer took 39.53 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. [2019-12-07 16:35:14,737 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 167.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -203.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.84 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 11.29 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 133.91 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: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 772.01 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: 75.9 MB). Peak memory consumption was 75.9 MB. Max. memory is 11.5 GB. * Witness Printer took 39.53 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: - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: (M == x || M + 1 <= x) || x <= 2147483646 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 0 <= x + 2147483648 && M <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 2 error locations. Result: SAFE, OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 37 SDslu, 6 SDs, 0 SdLazy, 46 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 21 HoareAnnotationTreeSize, 2 FomulaSimplifications, 46 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 797 SizeOfPredicates, 1 NumberOfNonLiveVariables, 20 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 2/6 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 correct! Received shutdown request...