./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/McCarthy91_Recursion_true-no-overflow_true-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_02775e21-dd30-4e09-973b-804b0d67a382/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_02775e21-dd30-4e09-973b-804b0d67a382/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_02775e21-dd30-4e09-973b-804b0d67a382/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_02775e21-dd30-4e09-973b-804b0d67a382/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/McCarthy91_Recursion_true-no-overflow_true-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_02775e21-dd30-4e09-973b-804b0d67a382/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_02775e21-dd30-4e09-973b-804b0d67a382/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 871be16186d4378aec884efd2352a47ca4eb57bc .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 13:57:26,707 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 13:57:26,708 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 13:57:26,715 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 13:57:26,715 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 13:57:26,715 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 13:57:26,716 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 13:57:26,717 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 13:57:26,718 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 13:57:26,719 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 13:57:26,719 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 13:57:26,720 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 13:57:26,721 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 13:57:26,721 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 13:57:26,722 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 13:57:26,723 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 13:57:26,723 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 13:57:26,725 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 13:57:26,726 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 13:57:26,727 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 13:57:26,728 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 13:57:26,729 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 13:57:26,730 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 13:57:26,730 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 13:57:26,730 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 13:57:26,731 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 13:57:26,731 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 13:57:26,732 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 13:57:26,733 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 13:57:26,734 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 13:57:26,734 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 13:57:26,734 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 13:57:26,734 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 13:57:26,734 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 13:57:26,735 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 13:57:26,736 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 13:57:26,736 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_02775e21-dd30-4e09-973b-804b0d67a382/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-23 13:57:26,745 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 13:57:26,745 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 13:57:26,746 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 13:57:26,746 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 13:57:26,746 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 13:57:26,746 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 13:57:26,746 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 13:57:26,746 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 13:57:26,746 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 13:57:26,746 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 13:57:26,747 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 13:57:26,747 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 13:57:26,747 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 13:57:26,747 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 13:57:26,747 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 13:57:26,747 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 13:57:26,748 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 13:57:26,748 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 13:57:26,748 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 13:57:26,748 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 13:57:26,749 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-23 13:57:26,749 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 13:57:26,749 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 13:57:26,749 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 13:57:26,749 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 13:57:26,749 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 13:57:26,750 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 13:57:26,750 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 13:57:26,750 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 13:57:26,750 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 13:57:26,750 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 13:57:26,750 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 13:57:26,750 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 13:57:26,750 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 13:57:26,750 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 13:57:26,750 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 13:57:26,750 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_02775e21-dd30-4e09-973b-804b0d67a382/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 871be16186d4378aec884efd2352a47ca4eb57bc [2018-11-23 13:57:26,775 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 13:57:26,784 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 13:57:26,785 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 13:57:26,787 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 13:57:26,787 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 13:57:26,787 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_02775e21-dd30-4e09-973b-804b0d67a382/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted/McCarthy91_Recursion_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-23 13:57:26,824 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_02775e21-dd30-4e09-973b-804b0d67a382/bin-2019/utaipan/data/dd25402f9/8ead5bbe20ae49ab95731be10f79a9e6/FLAG352e5efdc [2018-11-23 13:57:27,126 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 13:57:27,126 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_02775e21-dd30-4e09-973b-804b0d67a382/sv-benchmarks/c/termination-crafted/McCarthy91_Recursion_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-23 13:57:27,129 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_02775e21-dd30-4e09-973b-804b0d67a382/bin-2019/utaipan/data/dd25402f9/8ead5bbe20ae49ab95731be10f79a9e6/FLAG352e5efdc [2018-11-23 13:57:27,139 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_02775e21-dd30-4e09-973b-804b0d67a382/bin-2019/utaipan/data/dd25402f9/8ead5bbe20ae49ab95731be10f79a9e6 [2018-11-23 13:57:27,141 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 13:57:27,142 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 13:57:27,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 13:57:27,143 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 13:57:27,145 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 13:57:27,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:57:27" (1/1) ... [2018-11-23 13:57:27,147 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27e09d4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:27, skipping insertion in model container [2018-11-23 13:57:27,147 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:57:27" (1/1) ... [2018-11-23 13:57:27,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 13:57:27,163 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 13:57:27,261 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:57:27,263 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 13:57:27,271 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:57:27,279 INFO L195 MainTranslator]: Completed translation [2018-11-23 13:57:27,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:27 WrapperNode [2018-11-23 13:57:27,279 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 13:57:27,280 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 13:57:27,280 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 13:57:27,280 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 13:57:27,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:27" (1/1) ... [2018-11-23 13:57:27,291 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:27" (1/1) ... [2018-11-23 13:57:27,296 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 13:57:27,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 13:57:27,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 13:57:27,297 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 13:57:27,304 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:27" (1/1) ... [2018-11-23 13:57:27,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:27" (1/1) ... [2018-11-23 13:57:27,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:27" (1/1) ... [2018-11-23 13:57:27,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:27" (1/1) ... [2018-11-23 13:57:27,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:27" (1/1) ... [2018-11-23 13:57:27,308 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:27" (1/1) ... [2018-11-23 13:57:27,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:27" (1/1) ... [2018-11-23 13:57:27,309 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 13:57:27,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 13:57:27,310 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 13:57:27,310 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 13:57:27,311 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_02775e21-dd30-4e09-973b-804b0d67a382/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 13:57:27,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 13:57:27,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 13:57:27,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 13:57:27,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 13:57:27,383 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 13:57:27,383 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 13:57:27,383 INFO L130 BoogieDeclarations]: Found specification of procedure mc91 [2018-11-23 13:57:27,383 INFO L138 BoogieDeclarations]: Found implementation of procedure mc91 [2018-11-23 13:57:27,479 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 13:57:27,479 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 13:57:27,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:57:27 BoogieIcfgContainer [2018-11-23 13:57:27,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 13:57:27,480 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 13:57:27,480 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 13:57:27,482 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 13:57:27,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:57:27" (1/3) ... [2018-11-23 13:57:27,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e087056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:57:27, skipping insertion in model container [2018-11-23 13:57:27,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:27" (2/3) ... [2018-11-23 13:57:27,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e087056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:57:27, skipping insertion in model container [2018-11-23 13:57:27,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:57:27" (3/3) ... [2018-11-23 13:57:27,485 INFO L112 eAbstractionObserver]: Analyzing ICFG McCarthy91_Recursion_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-23 13:57:27,491 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 13:57:27,495 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-23 13:57:27,505 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-23 13:57:27,525 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 13:57:27,525 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 13:57:27,525 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 13:57:27,525 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 13:57:27,525 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 13:57:27,525 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 13:57:27,526 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 13:57:27,526 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 13:57:27,538 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-11-23 13:57:27,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 13:57:27,541 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:57:27,542 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:57:27,544 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 13:57:27,548 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:57:27,548 INFO L82 PathProgramCache]: Analyzing trace with hash -946681433, now seen corresponding path program 1 times [2018-11-23 13:57:27,549 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:57:27,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:57:27,578 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:57:27,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:57:27,579 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:57:27,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:57:27,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:57:27,634 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:57:27,634 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 13:57:27,635 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:57:27,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 13:57:27,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 13:57:27,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:57:27,646 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 3 states. [2018-11-23 13:57:27,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:57:27,685 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2018-11-23 13:57:27,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 13:57:27,686 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-23 13:57:27,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:57:27,692 INFO L225 Difference]: With dead ends: 29 [2018-11-23 13:57:27,692 INFO L226 Difference]: Without dead ends: 23 [2018-11-23 13:57:27,694 INFO L631 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 [2018-11-23 13:57:27,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-23 13:57:27,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2018-11-23 13:57:27,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-23 13:57:27,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-11-23 13:57:27,719 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 9 [2018-11-23 13:57:27,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:57:27,720 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-11-23 13:57:27,720 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 13:57:27,720 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-11-23 13:57:27,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 13:57:27,720 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:57:27,721 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:57:27,721 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 13:57:27,721 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:57:27,721 INFO L82 PathProgramCache]: Analyzing trace with hash -946681593, now seen corresponding path program 1 times [2018-11-23 13:57:27,721 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:57:27,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:57:27,722 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:57:27,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:57:27,723 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:57:27,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:57:27,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:57:27,756 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:57:27,756 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 13:57:27,756 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:57:27,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 13:57:27,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 13:57:27,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 13:57:27,757 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 5 states. [2018-11-23 13:57:27,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:57:27,829 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2018-11-23 13:57:27,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 13:57:27,830 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-23 13:57:27,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:57:27,830 INFO L225 Difference]: With dead ends: 38 [2018-11-23 13:57:27,831 INFO L226 Difference]: Without dead ends: 34 [2018-11-23 13:57:27,831 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 13:57:27,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-23 13:57:27,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 30. [2018-11-23 13:57:27,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-23 13:57:27,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2018-11-23 13:57:27,836 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 9 [2018-11-23 13:57:27,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:57:27,836 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2018-11-23 13:57:27,837 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 13:57:27,837 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2018-11-23 13:57:27,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 13:57:27,837 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:57:27,837 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:57:27,837 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 13:57:27,837 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:57:27,838 INFO L82 PathProgramCache]: Analyzing trace with hash 717646699, now seen corresponding path program 1 times [2018-11-23 13:57:27,838 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:57:27,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:57:27,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:57:27,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:57:27,839 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:57:27,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:57:27,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:57:27,873 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:57:27,873 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 13:57:27,874 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:57:27,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 13:57:27,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 13:57:27,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 13:57:27,874 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand 5 states. [2018-11-23 13:57:27,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:57:27,957 INFO L93 Difference]: Finished difference Result 47 states and 56 transitions. [2018-11-23 13:57:27,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 13:57:27,957 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2018-11-23 13:57:27,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:57:27,958 INFO L225 Difference]: With dead ends: 47 [2018-11-23 13:57:27,958 INFO L226 Difference]: Without dead ends: 46 [2018-11-23 13:57:27,959 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 13:57:27,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-11-23 13:57:27,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2018-11-23 13:57:27,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-23 13:57:27,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2018-11-23 13:57:27,967 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 10 [2018-11-23 13:57:27,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:57:27,967 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2018-11-23 13:57:27,967 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 13:57:27,968 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2018-11-23 13:57:27,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 13:57:27,968 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:57:27,968 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:57:27,968 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 13:57:27,969 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:57:27,969 INFO L82 PathProgramCache]: Analyzing trace with hash 717641734, now seen corresponding path program 1 times [2018-11-23 13:57:27,969 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:57:27,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:57:27,970 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:57:27,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:57:27,970 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:57:27,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:57:27,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:57:27,989 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:57:27,989 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 13:57:27,989 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:57:27,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 13:57:27,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 13:57:27,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:57:27,990 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand 3 states. [2018-11-23 13:57:28,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:57:28,006 INFO L93 Difference]: Finished difference Result 46 states and 57 transitions. [2018-11-23 13:57:28,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 13:57:28,006 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-23 13:57:28,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:57:28,007 INFO L225 Difference]: With dead ends: 46 [2018-11-23 13:57:28,007 INFO L226 Difference]: Without dead ends: 43 [2018-11-23 13:57:28,008 INFO L631 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 [2018-11-23 13:57:28,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-23 13:57:28,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2018-11-23 13:57:28,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-23 13:57:28,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2018-11-23 13:57:28,013 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 10 [2018-11-23 13:57:28,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:57:28,014 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2018-11-23 13:57:28,014 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 13:57:28,014 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2018-11-23 13:57:28,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-23 13:57:28,014 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:57:28,014 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:57:28,015 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 13:57:28,015 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:57:28,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1100578997, now seen corresponding path program 1 times [2018-11-23 13:57:28,015 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:57:28,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:57:28,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:57:28,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:57:28,016 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:57:28,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:57:28,051 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:57:28,051 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:57:28,051 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 13:57:28,051 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:57:28,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 13:57:28,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 13:57:28,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-23 13:57:28,052 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand 5 states. [2018-11-23 13:57:28,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:57:28,102 INFO L93 Difference]: Finished difference Result 59 states and 71 transitions. [2018-11-23 13:57:28,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 13:57:28,103 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-11-23 13:57:28,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:57:28,103 INFO L225 Difference]: With dead ends: 59 [2018-11-23 13:57:28,104 INFO L226 Difference]: Without dead ends: 58 [2018-11-23 13:57:28,104 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-23 13:57:28,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-11-23 13:57:28,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 51. [2018-11-23 13:57:28,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-11-23 13:57:28,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2018-11-23 13:57:28,113 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 14 [2018-11-23 13:57:28,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:57:28,113 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2018-11-23 13:57:28,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 13:57:28,113 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2018-11-23 13:57:28,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-23 13:57:28,114 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:57:28,114 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:57:28,114 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 13:57:28,114 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:57:28,114 INFO L82 PathProgramCache]: Analyzing trace with hash -1291625796, now seen corresponding path program 1 times [2018-11-23 13:57:28,115 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:57:28,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:57:28,115 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:57:28,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:57:28,115 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:57:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:57:28,156 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 13:57:28,156 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:57:28,156 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 13:57:28,156 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:57:28,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 13:57:28,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 13:57:28,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 13:57:28,157 INFO L87 Difference]: Start difference. First operand 51 states and 59 transitions. Second operand 5 states. [2018-11-23 13:57:28,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:57:28,219 INFO L93 Difference]: Finished difference Result 56 states and 65 transitions. [2018-11-23 13:57:28,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 13:57:28,220 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2018-11-23 13:57:28,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:57:28,220 INFO L225 Difference]: With dead ends: 56 [2018-11-23 13:57:28,221 INFO L226 Difference]: Without dead ends: 55 [2018-11-23 13:57:28,221 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-23 13:57:28,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-11-23 13:57:28,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 50. [2018-11-23 13:57:28,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-11-23 13:57:28,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2018-11-23 13:57:28,229 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 58 transitions. Word has length 22 [2018-11-23 13:57:28,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:57:28,230 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 58 transitions. [2018-11-23 13:57:28,230 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 13:57:28,230 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2018-11-23 13:57:28,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-23 13:57:28,231 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:57:28,231 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:57:28,231 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 13:57:28,231 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:57:28,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1385689002, now seen corresponding path program 1 times [2018-11-23 13:57:28,232 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:57:28,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:57:28,233 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:57:28,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:57:28,233 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:57:28,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:57:28,266 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 13:57:28,266 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:57:28,267 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 13:57:28,267 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:57:28,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 13:57:28,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 13:57:28,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 13:57:28,268 INFO L87 Difference]: Start difference. First operand 50 states and 58 transitions. Second operand 5 states. [2018-11-23 13:57:28,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:57:28,324 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2018-11-23 13:57:28,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 13:57:28,324 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2018-11-23 13:57:28,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:57:28,325 INFO L225 Difference]: With dead ends: 52 [2018-11-23 13:57:28,325 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 13:57:28,325 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-23 13:57:28,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 13:57:28,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 13:57:28,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 13:57:28,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 13:57:28,326 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2018-11-23 13:57:28,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:57:28,326 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 13:57:28,326 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 13:57:28,327 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 13:57:28,327 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 13:57:28,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 13:57:28,473 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 13:57:28,473 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 13:57:28,473 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 13:57:28,473 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 13:57:28,473 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 13:57:28,473 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 13:57:28,473 INFO L444 ceAbstractionStarter]: At program point L16(line 16) the Hoare annotation is: (and (<= main_~x~0 2147483647) (<= 0 (+ main_~x~0 2147483648))) [2018-11-23 13:57:28,473 INFO L448 ceAbstractionStarter]: For program point L16-1(line 16) no Hoare annotation was computed. [2018-11-23 13:57:28,474 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 14 17) the Hoare annotation is: true [2018-11-23 13:57:28,474 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 14 17) no Hoare annotation was computed. [2018-11-23 13:57:28,474 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 14 17) no Hoare annotation was computed. [2018-11-23 13:57:28,474 INFO L448 ceAbstractionStarter]: For program point mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2018-11-23 13:57:28,474 INFO L448 ceAbstractionStarter]: For program point mc91FINAL(lines 8 12) no Hoare annotation was computed. [2018-11-23 13:57:28,474 INFO L448 ceAbstractionStarter]: For program point mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2018-11-23 13:57:28,474 INFO L448 ceAbstractionStarter]: For program point L11(line 11) no Hoare annotation was computed. [2018-11-23 13:57:28,474 INFO L448 ceAbstractionStarter]: For program point mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2018-11-23 13:57:28,475 INFO L448 ceAbstractionStarter]: For program point L10(lines 10 11) no Hoare annotation was computed. [2018-11-23 13:57:28,475 INFO L448 ceAbstractionStarter]: For program point mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2018-11-23 13:57:28,475 INFO L448 ceAbstractionStarter]: For program point L11-1(line 11) no Hoare annotation was computed. [2018-11-23 13:57:28,475 INFO L448 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2018-11-23 13:57:28,475 INFO L444 ceAbstractionStarter]: At program point L11-2(line 11) the Hoare annotation is: (or (< 2147483647 |mc91_#in~n|) (< (+ |mc91_#in~n| 2147483648) 0) (and (<= mc91_~n 100) (<= 0 (+ mc91_~n 2147483648)))) [2018-11-23 13:57:28,475 INFO L448 ceAbstractionStarter]: For program point L10-2(line 10) no Hoare annotation was computed. [2018-11-23 13:57:28,475 INFO L448 ceAbstractionStarter]: For program point L11-3(line 11) no Hoare annotation was computed. [2018-11-23 13:57:28,475 INFO L444 ceAbstractionStarter]: At program point L11-4(line 11) the Hoare annotation is: (or (< 2147483647 |mc91_#in~n|) (< (+ |mc91_#in~n| 2147483648) 0) (and (<= 0 (+ |mc91_#t~ret0| 2147483648)) (<= mc91_~n 100) (<= 0 (+ mc91_~n 2147483648)) (<= |mc91_#t~ret0| 2147483647))) [2018-11-23 13:57:28,476 INFO L451 ceAbstractionStarter]: At program point mc91ENTRY(lines 8 12) the Hoare annotation is: true [2018-11-23 13:57:28,476 INFO L448 ceAbstractionStarter]: For program point L11-5(line 11) no Hoare annotation was computed. [2018-11-23 13:57:28,476 INFO L448 ceAbstractionStarter]: For program point mc91EXIT(lines 8 12) no Hoare annotation was computed. [2018-11-23 13:57:28,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:57:28 BoogieIcfgContainer [2018-11-23 13:57:28,478 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 13:57:28,479 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 13:57:28,479 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 13:57:28,479 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 13:57:28,479 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:57:27" (3/4) ... [2018-11-23 13:57:28,482 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 13:57:28,487 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 13:57:28,487 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 13:57:28,487 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure mc91 [2018-11-23 13:57:28,490 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-23 13:57:28,491 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 13:57:28,491 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 13:57:28,518 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_02775e21-dd30-4e09-973b-804b0d67a382/bin-2019/utaipan/witness.graphml [2018-11-23 13:57:28,518 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 13:57:28,518 INFO L168 Benchmark]: Toolchain (without parser) took 1376.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 959.1 MB in the beginning and 1.0 GB in the end (delta: -50.6 MB). Peak memory consumption was 97.8 MB. Max. memory is 11.5 GB. [2018-11-23 13:57:28,519 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:57:28,520 INFO L168 Benchmark]: CACSL2BoogieTranslator took 136.88 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 13:57:28,520 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.40 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:57:28,520 INFO L168 Benchmark]: Boogie Preprocessor took 13.10 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 13:57:28,520 INFO L168 Benchmark]: RCFGBuilder took 169.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -183.2 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-23 13:57:28,521 INFO L168 Benchmark]: TraceAbstraction took 998.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 113.8 MB). Peak memory consumption was 113.8 MB. Max. memory is 11.5 GB. [2018-11-23 13:57:28,521 INFO L168 Benchmark]: Witness Printer took 39.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 13:57:28,523 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 136.88 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.40 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.10 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 169.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -183.2 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 998.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 113.8 MB). Peak memory consumption was 113.8 MB. Max. memory is 11.5 GB. * Witness Printer took 39.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 10]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 27 locations, 4 error locations. SAFE Result, 0.9s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 152 SDtfs, 121 SDslu, 227 SDs, 0 SdLazy, 201 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 26 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 32 PreInvPairs, 32 NumberOfFragments, 62 HoareAnnotationTreeSize, 32 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 94 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 2444 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 17/17 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...