./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_cde07a23-143e-4926-8a14-153203052bb2/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cde07a23-143e-4926-8a14-153203052bb2/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cde07a23-143e-4926-8a14-153203052bb2/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cde07a23-143e-4926-8a14-153203052bb2/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_cde07a23-143e-4926-8a14-153203052bb2/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cde07a23-143e-4926-8a14-153203052bb2/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 687269bb6882b72a3d48999f1e5c55a1d5283a94 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 13:14:39,527 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:14:39,528 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:14:39,534 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:14:39,535 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:14:39,535 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:14:39,536 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:14:39,537 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:14:39,539 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:14:39,539 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:14:39,540 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:14:39,540 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:14:39,541 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:14:39,541 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:14:39,542 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:14:39,543 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:14:39,544 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:14:39,545 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:14:39,546 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:14:39,548 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:14:39,549 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:14:39,549 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:14:39,551 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:14:39,551 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:14:39,551 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:14:39,552 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:14:39,552 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:14:39,553 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:14:39,553 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:14:39,554 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:14:39,554 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:14:39,555 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:14:39,555 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:14:39,555 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:14:39,556 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:14:39,556 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:14:39,556 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cde07a23-143e-4926-8a14-153203052bb2/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-18 13:14:39,564 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:14:39,564 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:14:39,564 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:14:39,564 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 13:14:39,564 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 13:14:39,565 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 13:14:39,565 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 13:14:39,565 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 13:14:39,565 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 13:14:39,565 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 13:14:39,565 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 13:14:39,565 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 13:14:39,565 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 13:14:39,566 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:14:39,566 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 13:14:39,566 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:14:39,566 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:14:39,566 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:14:39,566 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:14:39,566 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:14:39,567 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-18 13:14:39,567 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:14:39,567 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:14:39,567 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:14:39,567 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:14:39,567 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:14:39,567 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:14:39,567 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 13:14:39,567 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:14:39,568 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:14:39,568 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:14:39,568 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:14:39,568 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 13:14:39,568 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:14:39,568 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 13:14:39,568 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 13:14:39,568 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_cde07a23-143e-4926-8a14-153203052bb2/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 -> 687269bb6882b72a3d48999f1e5c55a1d5283a94 [2018-11-18 13:14:39,590 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:14:39,598 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:14:39,600 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:14:39,601 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:14:39,601 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:14:39,601 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cde07a23-143e-4926-8a14-153203052bb2/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-18 13:14:39,635 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cde07a23-143e-4926-8a14-153203052bb2/bin-2019/utaipan/data/9454b92b9/cc4181aced364839b907e5d35ce827a4/FLAGc1ac0d0cc [2018-11-18 13:14:40,027 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:14:40,028 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cde07a23-143e-4926-8a14-153203052bb2/sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-18 13:14:40,031 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cde07a23-143e-4926-8a14-153203052bb2/bin-2019/utaipan/data/9454b92b9/cc4181aced364839b907e5d35ce827a4/FLAGc1ac0d0cc [2018-11-18 13:14:40,040 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cde07a23-143e-4926-8a14-153203052bb2/bin-2019/utaipan/data/9454b92b9/cc4181aced364839b907e5d35ce827a4 [2018-11-18 13:14:40,042 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:14:40,043 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:14:40,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:14:40,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:14:40,046 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:14:40,046 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:14:40" (1/1) ... [2018-11-18 13:14:40,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@279e0284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:14:40, skipping insertion in model container [2018-11-18 13:14:40,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:14:40" (1/1) ... [2018-11-18 13:14:40,054 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:14:40,065 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:14:40,169 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:14:40,172 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:14:40,181 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:14:40,189 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:14:40,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:14:40 WrapperNode [2018-11-18 13:14:40,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:14:40,190 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:14:40,190 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:14:40,190 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:14:40,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:14:40" (1/1) ... [2018-11-18 13:14:40,201 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:14:40" (1/1) ... [2018-11-18 13:14:40,207 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:14:40,207 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:14:40,207 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:14:40,207 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:14:40,215 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:14:40" (1/1) ... [2018-11-18 13:14:40,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:14:40" (1/1) ... [2018-11-18 13:14:40,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:14:40" (1/1) ... [2018-11-18 13:14:40,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:14:40" (1/1) ... [2018-11-18 13:14:40,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:14:40" (1/1) ... [2018-11-18 13:14:40,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:14:40" (1/1) ... [2018-11-18 13:14:40,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:14:40" (1/1) ... [2018-11-18 13:14:40,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:14:40,224 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:14:40,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:14:40,225 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:14:40,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:14:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cde07a23-143e-4926-8a14-153203052bb2/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 [2018-11-18 13:14:40,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 13:14:40,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 13:14:40,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:14:40,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:14:40,301 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 13:14:40,301 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 13:14:40,445 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:14:40,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:14:40 BoogieIcfgContainer [2018-11-18 13:14:40,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:14:40,446 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 13:14:40,446 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 13:14:40,449 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 13:14:40,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:14:40" (1/3) ... [2018-11-18 13:14:40,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@522102dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:14:40, skipping insertion in model container [2018-11-18 13:14:40,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:14:40" (2/3) ... [2018-11-18 13:14:40,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@522102dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:14:40, skipping insertion in model container [2018-11-18 13:14:40,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:14:40" (3/3) ... [2018-11-18 13:14:40,462 INFO L112 eAbstractionObserver]: Analyzing ICFG TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-18 13:14:40,470 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 13:14:40,476 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-11-18 13:14:40,490 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2018-11-18 13:14:40,518 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 13:14:40,518 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 13:14:40,519 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 13:14:40,519 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:14:40,519 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:14:40,519 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 13:14:40,519 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:14:40,519 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 13:14:40,534 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-11-18 13:14:40,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 13:14:40,539 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:14:40,540 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:14:40,541 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 13:14:40,546 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:14:40,546 INFO L82 PathProgramCache]: Analyzing trace with hash 697080306, now seen corresponding path program 1 times [2018-11-18 13:14:40,548 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:14:40,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:14:40,594 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:14:40,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:14:40,594 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:14:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:14:40,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:14:40,671 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:14:40,671 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 13:14:40,672 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:14:40,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 13:14:40,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:14:40,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:14:40,688 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 3 states. [2018-11-18 13:14:40,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:14:40,760 INFO L93 Difference]: Finished difference Result 62 states and 72 transitions. [2018-11-18 13:14:40,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:14:40,761 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-18 13:14:40,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:14:40,768 INFO L225 Difference]: With dead ends: 62 [2018-11-18 13:14:40,768 INFO L226 Difference]: Without dead ends: 47 [2018-11-18 13:14:40,770 INFO L604 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 [2018-11-18 13:14:40,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-18 13:14:40,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 37. [2018-11-18 13:14:40,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-18 13:14:40,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2018-11-18 13:14:40,799 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 10 [2018-11-18 13:14:40,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:14:40,799 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2018-11-18 13:14:40,799 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 13:14:40,799 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2018-11-18 13:14:40,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 13:14:40,800 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:14:40,800 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:14:40,800 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 13:14:40,801 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:14:40,801 INFO L82 PathProgramCache]: Analyzing trace with hash 697080498, now seen corresponding path program 1 times [2018-11-18 13:14:40,801 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:14:40,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:14:40,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:14:40,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:14:40,803 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:14:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:14:40,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:14:40,823 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:14:40,823 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 13:14:40,823 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:14:40,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 13:14:40,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:14:40,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:14:40,825 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand 3 states. [2018-11-18 13:14:40,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:14:40,874 INFO L93 Difference]: Finished difference Result 57 states and 69 transitions. [2018-11-18 13:14:40,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:14:40,874 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-18 13:14:40,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:14:40,875 INFO L225 Difference]: With dead ends: 57 [2018-11-18 13:14:40,875 INFO L226 Difference]: Without dead ends: 55 [2018-11-18 13:14:40,875 INFO L604 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 [2018-11-18 13:14:40,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-11-18 13:14:40,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 46. [2018-11-18 13:14:40,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-11-18 13:14:40,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 57 transitions. [2018-11-18 13:14:40,879 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 57 transitions. Word has length 10 [2018-11-18 13:14:40,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:14:40,880 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 57 transitions. [2018-11-18 13:14:40,880 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 13:14:40,880 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 57 transitions. [2018-11-18 13:14:40,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 13:14:40,880 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:14:40,880 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:14:40,881 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 13:14:40,881 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:14:40,881 INFO L82 PathProgramCache]: Analyzing trace with hash 134653060, now seen corresponding path program 1 times [2018-11-18 13:14:40,881 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:14:40,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:14:40,883 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:14:40,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:14:40,883 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:14:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:14:40,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:14:40,907 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:14:40,907 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 13:14:40,907 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:14:40,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 13:14:40,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:14:40,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:14:40,908 INFO L87 Difference]: Start difference. First operand 46 states and 57 transitions. Second operand 3 states. [2018-11-18 13:14:40,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:14:40,939 INFO L93 Difference]: Finished difference Result 46 states and 57 transitions. [2018-11-18 13:14:40,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:14:40,940 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-18 13:14:40,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:14:40,941 INFO L225 Difference]: With dead ends: 46 [2018-11-18 13:14:40,941 INFO L226 Difference]: Without dead ends: 44 [2018-11-18 13:14:40,941 INFO L604 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 [2018-11-18 13:14:40,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-18 13:14:40,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-11-18 13:14:40,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-18 13:14:40,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 54 transitions. [2018-11-18 13:14:40,946 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 54 transitions. Word has length 11 [2018-11-18 13:14:40,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:14:40,946 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 54 transitions. [2018-11-18 13:14:40,946 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 13:14:40,946 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 54 transitions. [2018-11-18 13:14:40,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 13:14:40,946 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:14:40,947 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:14:40,947 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 13:14:40,947 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:14:40,947 INFO L82 PathProgramCache]: Analyzing trace with hash 134659018, now seen corresponding path program 1 times [2018-11-18 13:14:40,947 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:14:40,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:14:40,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:14:40,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:14:40,949 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:14:40,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:14:40,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:14:40,966 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:14:40,966 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 13:14:40,966 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:14:40,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 13:14:40,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:14:40,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:14:40,968 INFO L87 Difference]: Start difference. First operand 44 states and 54 transitions. Second operand 3 states. [2018-11-18 13:14:40,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:14:40,999 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2018-11-18 13:14:41,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:14:41,001 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-18 13:14:41,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:14:41,001 INFO L225 Difference]: With dead ends: 44 [2018-11-18 13:14:41,001 INFO L226 Difference]: Without dead ends: 42 [2018-11-18 13:14:41,002 INFO L604 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 [2018-11-18 13:14:41,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-18 13:14:41,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-11-18 13:14:41,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-18 13:14:41,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2018-11-18 13:14:41,006 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 11 [2018-11-18 13:14:41,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:14:41,006 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2018-11-18 13:14:41,006 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 13:14:41,006 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2018-11-18 13:14:41,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 13:14:41,007 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:14:41,007 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:14:41,007 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 13:14:41,007 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:14:41,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1674912527, now seen corresponding path program 1 times [2018-11-18 13:14:41,008 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:14:41,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:14:41,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:14:41,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:14:41,009 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:14:41,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:14:41,030 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:14:41,030 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:14:41,030 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 13:14:41,031 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:14:41,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 13:14:41,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 13:14:41,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 13:14:41,031 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand 4 states. [2018-11-18 13:14:41,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:14:41,068 INFO L93 Difference]: Finished difference Result 42 states and 51 transitions. [2018-11-18 13:14:41,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:14:41,068 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-11-18 13:14:41,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:14:41,069 INFO L225 Difference]: With dead ends: 42 [2018-11-18 13:14:41,069 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 13:14:41,069 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 13:14:41,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 13:14:41,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 13:14:41,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 13:14:41,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 13:14:41,070 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2018-11-18 13:14:41,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:14:41,070 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 13:14:41,070 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 13:14:41,070 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 13:14:41,070 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 13:14:41,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 13:14:41,088 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 13:14:41,088 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:14:41,088 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:14:41,088 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 13:14:41,088 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 13:14:41,088 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 13:14:41,089 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2018-11-18 13:14:41,089 INFO L425 ceAbstractionStarter]: For program point L33(lines 33 37) no Hoare annotation was computed. [2018-11-18 13:14:41,089 INFO L425 ceAbstractionStarter]: For program point L33-2(lines 33 37) no Hoare annotation was computed. [2018-11-18 13:14:41,089 INFO L425 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-11-18 13:14:41,089 INFO L425 ceAbstractionStarter]: For program point mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2018-11-18 13:14:41,089 INFO L425 ceAbstractionStarter]: For program point L29-1(line 29) no Hoare annotation was computed. [2018-11-18 13:14:41,089 INFO L425 ceAbstractionStarter]: For program point L27(line 27) no Hoare annotation was computed. [2018-11-18 13:14:41,089 INFO L425 ceAbstractionStarter]: For program point L27-1(line 27) no Hoare annotation was computed. [2018-11-18 13:14:41,089 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2018-11-18 13:14:41,090 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 39) no Hoare annotation was computed. [2018-11-18 13:14:41,090 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 19 42) no Hoare annotation was computed. [2018-11-18 13:14:41,090 INFO L421 ceAbstractionStarter]: At program point L25-2(lines 24 40) the Hoare annotation is: (and (<= main_~y~0 2147483647) (<= main_~x~0 2147483648)) [2018-11-18 13:14:41,090 INFO L425 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2018-11-18 13:14:41,090 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 19 42) no Hoare annotation was computed. [2018-11-18 13:14:41,090 INFO L425 ceAbstractionStarter]: For program point L36(line 36) no Hoare annotation was computed. [2018-11-18 13:14:41,090 INFO L425 ceAbstractionStarter]: For program point L36-1(line 36) no Hoare annotation was computed. [2018-11-18 13:14:41,090 INFO L425 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-11-18 13:14:41,090 INFO L425 ceAbstractionStarter]: For program point L34-1(line 34) no Hoare annotation was computed. [2018-11-18 13:14:41,091 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 19 42) the Hoare annotation is: true [2018-11-18 13:14:41,091 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2018-11-18 13:14:41,091 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2018-11-18 13:14:41,091 INFO L425 ceAbstractionStarter]: For program point mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2018-11-18 13:14:41,091 INFO L425 ceAbstractionStarter]: For program point L26-2(lines 26 30) no Hoare annotation was computed. [2018-11-18 13:14:41,091 INFO L425 ceAbstractionStarter]: For program point L24-1(lines 24 40) no Hoare annotation was computed. [2018-11-18 13:14:41,091 INFO L425 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2018-11-18 13:14:41,091 INFO L425 ceAbstractionStarter]: For program point L24-3(lines 24 40) no Hoare annotation was computed. [2018-11-18 13:14:41,091 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2018-11-18 13:14:41,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 01:14:41 BoogieIcfgContainer [2018-11-18 13:14:41,102 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 13:14:41,102 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:14:41,102 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:14:41,102 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:14:41,103 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:14:40" (3/4) ... [2018-11-18 13:14:41,106 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 13:14:41,111 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 13:14:41,111 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 13:14:41,115 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 13:14:41,115 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 13:14:41,115 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 13:14:41,152 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_cde07a23-143e-4926-8a14-153203052bb2/bin-2019/utaipan/witness.graphml [2018-11-18 13:14:41,152 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:14:41,153 INFO L168 Benchmark]: Toolchain (without parser) took 1110.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 963.8 MB in the beginning and 1.0 GB in the end (delta: -73.4 MB). Peak memory consumption was 51.9 MB. Max. memory is 11.5 GB. [2018-11-18 13:14:41,154 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:14:41,154 INFO L168 Benchmark]: CACSL2BoogieTranslator took 145.88 ms. Allocated memory is still 1.0 GB. Free memory was 963.8 MB in the beginning and 951.8 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-11-18 13:14:41,154 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.25 ms. Allocated memory is still 1.0 GB. Free memory is still 951.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:14:41,155 INFO L168 Benchmark]: Boogie Preprocessor took 17.21 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 946.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:14:41,155 INFO L168 Benchmark]: RCFGBuilder took 221.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 946.4 MB in the beginning and 1.1 GB in the end (delta: -164.7 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:14:41,155 INFO L168 Benchmark]: TraceAbstraction took 655.55 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: 73.9 MB). Peak memory consumption was 73.9 MB. Max. memory is 11.5 GB. [2018-11-18 13:14:41,156 INFO L168 Benchmark]: Witness Printer took 50.03 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:14:41,157 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 145.88 ms. Allocated memory is still 1.0 GB. Free memory was 963.8 MB in the beginning and 951.8 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.25 ms. Allocated memory is still 1.0 GB. Free memory is still 951.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.21 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 946.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 221.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 946.4 MB in the beginning and 1.1 GB in the end (delta: -164.7 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 655.55 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: 73.9 MB). Peak memory consumption was 73.9 MB. Max. memory is 11.5 GB. * Witness Printer took 50.03 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: y <= 2147483647 && x <= 2147483648 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 33 locations, 8 error locations. SAFE Result, 0.5s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 91 SDtfs, 85 SDslu, 52 SDs, 0 SdLazy, 89 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=2, 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, 5 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 6 NumberOfFragments, 11 HoareAnnotationTreeSize, 5 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 1182 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...