./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8ba86701-43d2-4068-8726-3cd72a804a22/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8ba86701-43d2-4068-8726-3cd72a804a22/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8ba86701-43d2-4068-8726-3cd72a804a22/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8ba86701-43d2-4068-8726-3cd72a804a22/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8ba86701-43d2-4068-8726-3cd72a804a22/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8ba86701-43d2-4068-8726-3cd72a804a22/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 835dc6725bef5f7d15ae0e4368f1a97f9d2b8c09 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:56:06,445 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:56:06,446 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:56:06,460 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:56:06,460 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:56:06,461 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:56:06,463 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:56:06,471 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:56:06,475 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:56:06,479 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:56:06,480 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:56:06,482 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:56:06,482 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:56:06,484 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:56:06,486 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:56:06,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:56:06,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:56:06,488 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:56:06,491 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:56:06,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:56:06,498 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:56:06,501 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:56:06,503 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:56:06,503 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:56:06,506 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:56:06,506 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:56:06,507 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:56:06,508 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:56:06,509 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:56:06,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:56:06,510 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:56:06,510 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:56:06,511 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:56:06,512 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:56:06,513 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:56:06,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:56:06,513 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:56:06,514 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:56:06,514 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:56:06,515 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:56:06,516 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:56:06,516 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8ba86701-43d2-4068-8726-3cd72a804a22/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-25 08:56:06,541 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:56:06,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:56:06,542 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:56:06,542 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:56:06,542 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:56:06,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:56:06,543 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:56:06,543 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:56:06,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:56:06,543 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:56:06,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:56:06,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:56:06,544 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-25 08:56:06,544 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:56:06,544 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:56:06,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:56:06,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:56:06,545 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:56:06,545 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:56:06,545 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:56:06,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:56:06,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:56:06,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:56:06,546 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:56:06,546 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:56:06,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:56:06,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:56:06,546 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8ba86701-43d2-4068-8726-3cd72a804a22/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 835dc6725bef5f7d15ae0e4368f1a97f9d2b8c09 [2019-11-25 08:56:06,727 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:56:06,742 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:56:06,744 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:56:06,746 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:56:06,746 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:56:06,747 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8ba86701-43d2-4068-8726-3cd72a804a22/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c [2019-11-25 08:56:06,808 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ba86701-43d2-4068-8726-3cd72a804a22/bin/uautomizer/data/f37d7a2c0/ee350bec8aee4c249a48a5392da31a97/FLAG319a62d23 [2019-11-25 08:56:07,196 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:56:07,196 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8ba86701-43d2-4068-8726-3cd72a804a22/sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c [2019-11-25 08:56:07,202 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ba86701-43d2-4068-8726-3cd72a804a22/bin/uautomizer/data/f37d7a2c0/ee350bec8aee4c249a48a5392da31a97/FLAG319a62d23 [2019-11-25 08:56:07,617 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8ba86701-43d2-4068-8726-3cd72a804a22/bin/uautomizer/data/f37d7a2c0/ee350bec8aee4c249a48a5392da31a97 [2019-11-25 08:56:07,620 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:56:07,621 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:56:07,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:56:07,622 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:56:07,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:56:07,627 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:56:07" (1/1) ... [2019-11-25 08:56:07,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19323dfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:07, skipping insertion in model container [2019-11-25 08:56:07,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:56:07" (1/1) ... [2019-11-25 08:56:07,643 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:56:07,660 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:56:07,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:56:07,797 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:56:07,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:56:07,893 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:56:07,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:07 WrapperNode [2019-11-25 08:56:07,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:56:07,894 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:56:07,895 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:56:07,895 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:56:07,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:07" (1/1) ... [2019-11-25 08:56:07,909 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:07" (1/1) ... [2019-11-25 08:56:07,929 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:56:07,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:56:07,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:56:07,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:56:07,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:07" (1/1) ... [2019-11-25 08:56:07,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:07" (1/1) ... [2019-11-25 08:56:07,941 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:07" (1/1) ... [2019-11-25 08:56:07,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:07" (1/1) ... [2019-11-25 08:56:07,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:07" (1/1) ... [2019-11-25 08:56:07,951 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:07" (1/1) ... [2019-11-25 08:56:07,952 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:07" (1/1) ... [2019-11-25 08:56:07,961 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:56:07,962 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:56:07,962 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:56:07,962 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:56:07,963 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ba86701-43d2-4068-8726-3cd72a804a22/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:56:08,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:56:08,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:56:08,292 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:56:08,292 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-25 08:56:08,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:56:08 BoogieIcfgContainer [2019-11-25 08:56:08,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:56:08,294 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:56:08,295 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:56:08,298 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:56:08,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:56:07" (1/3) ... [2019-11-25 08:56:08,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45065314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:56:08, skipping insertion in model container [2019-11-25 08:56:08,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:07" (2/3) ... [2019-11-25 08:56:08,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45065314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:56:08, skipping insertion in model container [2019-11-25 08:56:08,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:56:08" (3/3) ... [2019-11-25 08:56:08,301 INFO L109 eAbstractionObserver]: Analyzing ICFG UrbanMine-ESOP2014-Fig3.c [2019-11-25 08:56:08,322 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:56:08,327 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2019-11-25 08:56:08,358 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-11-25 08:56:08,389 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:56:08,389 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:56:08,390 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:56:08,390 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:56:08,390 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:56:08,390 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:56:08,390 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:56:08,391 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:56:08,414 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-11-25 08:56:08,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-25 08:56:08,420 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:08,421 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-25 08:56:08,423 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-25 08:56:08,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:08,428 INFO L82 PathProgramCache]: Analyzing trace with hash 29863588, now seen corresponding path program 1 times [2019-11-25 08:56:08,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:08,438 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484080540] [2019-11-25 08:56:08,438 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:08,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:08,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:08,595 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484080540] [2019-11-25 08:56:08,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:08,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-25 08:56:08,598 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336753086] [2019-11-25 08:56:08,604 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:56:08,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:08,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:56:08,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:56:08,620 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 3 states. [2019-11-25 08:56:08,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:08,697 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2019-11-25 08:56:08,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:56:08,698 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-25 08:56:08,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:08,708 INFO L225 Difference]: With dead ends: 43 [2019-11-25 08:56:08,709 INFO L226 Difference]: Without dead ends: 30 [2019-11-25 08:56:08,712 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:56:08,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-25 08:56:08,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2019-11-25 08:56:08,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-25 08:56:08,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2019-11-25 08:56:08,753 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 5 [2019-11-25 08:56:08,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:08,753 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2019-11-25 08:56:08,753 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:56:08,753 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2019-11-25 08:56:08,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-25 08:56:08,754 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:08,754 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-25 08:56:08,755 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-25 08:56:08,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:08,756 INFO L82 PathProgramCache]: Analyzing trace with hash 29863780, now seen corresponding path program 1 times [2019-11-25 08:56:08,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:08,757 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166314629] [2019-11-25 08:56:08,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:08,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:08,777 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166314629] [2019-11-25 08:56:08,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:08,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-25 08:56:08,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61033920] [2019-11-25 08:56:08,779 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:56:08,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:08,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:56:08,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:56:08,780 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand 3 states. [2019-11-25 08:56:08,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:08,802 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2019-11-25 08:56:08,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:56:08,803 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-25 08:56:08,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:08,804 INFO L225 Difference]: With dead ends: 28 [2019-11-25 08:56:08,804 INFO L226 Difference]: Without dead ends: 26 [2019-11-25 08:56:08,805 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:56:08,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-25 08:56:08,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-11-25 08:56:08,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-25 08:56:08,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2019-11-25 08:56:08,810 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 5 [2019-11-25 08:56:08,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:08,811 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2019-11-25 08:56:08,811 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:56:08,811 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2019-11-25 08:56:08,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-25 08:56:08,811 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:08,811 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-25 08:56:08,812 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-25 08:56:08,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:08,812 INFO L82 PathProgramCache]: Analyzing trace with hash 29879476, now seen corresponding path program 1 times [2019-11-25 08:56:08,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:08,813 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421112996] [2019-11-25 08:56:08,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:08,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:08,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:08,831 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421112996] [2019-11-25 08:56:08,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:08,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:56:08,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836357215] [2019-11-25 08:56:08,832 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:56:08,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:08,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:56:08,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:56:08,832 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand 3 states. [2019-11-25 08:56:08,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:08,868 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2019-11-25 08:56:08,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:56:08,868 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-25 08:56:08,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:08,869 INFO L225 Difference]: With dead ends: 26 [2019-11-25 08:56:08,869 INFO L226 Difference]: Without dead ends: 25 [2019-11-25 08:56:08,870 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:56:08,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-25 08:56:08,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-11-25 08:56:08,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-25 08:56:08,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2019-11-25 08:56:08,875 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 5 [2019-11-25 08:56:08,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:08,875 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2019-11-25 08:56:08,875 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:56:08,875 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2019-11-25 08:56:08,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-25 08:56:08,876 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:08,877 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:56:08,877 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-25 08:56:08,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:08,878 INFO L82 PathProgramCache]: Analyzing trace with hash 925771278, now seen corresponding path program 1 times [2019-11-25 08:56:08,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:08,878 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573986158] [2019-11-25 08:56:08,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:08,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:08,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:08,903 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573986158] [2019-11-25 08:56:08,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:08,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:56:08,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920645177] [2019-11-25 08:56:08,904 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:56:08,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:08,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:56:08,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:56:08,905 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand 3 states. [2019-11-25 08:56:08,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:08,946 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2019-11-25 08:56:08,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:56:08,947 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-25 08:56:08,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:08,948 INFO L225 Difference]: With dead ends: 52 [2019-11-25 08:56:08,948 INFO L226 Difference]: Without dead ends: 28 [2019-11-25 08:56:08,948 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:56:08,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-11-25 08:56:08,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-11-25 08:56:08,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-25 08:56:08,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2019-11-25 08:56:08,953 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 6 [2019-11-25 08:56:08,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:08,953 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2019-11-25 08:56:08,953 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:56:08,954 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2019-11-25 08:56:08,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-25 08:56:08,954 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:08,954 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:56:08,955 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-25 08:56:08,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:08,955 INFO L82 PathProgramCache]: Analyzing trace with hash 925777236, now seen corresponding path program 1 times [2019-11-25 08:56:08,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:08,955 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072804870] [2019-11-25 08:56:08,955 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:08,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:08,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:08,984 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072804870] [2019-11-25 08:56:08,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:08,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:56:08,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723813549] [2019-11-25 08:56:08,985 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:56:08,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:08,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:56:08,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:56:08,986 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand 3 states. [2019-11-25 08:56:09,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:09,003 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2019-11-25 08:56:09,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:56:09,004 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-25 08:56:09,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:09,005 INFO L225 Difference]: With dead ends: 29 [2019-11-25 08:56:09,005 INFO L226 Difference]: Without dead ends: 27 [2019-11-25 08:56:09,005 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:56:09,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-25 08:56:09,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2019-11-25 08:56:09,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-25 08:56:09,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2019-11-25 08:56:09,010 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 6 [2019-11-25 08:56:09,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:09,010 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2019-11-25 08:56:09,010 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:56:09,010 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2019-11-25 08:56:09,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-25 08:56:09,011 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:09,011 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:56:09,011 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-25 08:56:09,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:09,011 INFO L82 PathProgramCache]: Analyzing trace with hash 926263822, now seen corresponding path program 1 times [2019-11-25 08:56:09,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:09,012 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374868710] [2019-11-25 08:56:09,012 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:09,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:09,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:09,042 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374868710] [2019-11-25 08:56:09,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:09,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-25 08:56:09,042 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853460939] [2019-11-25 08:56:09,042 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:56:09,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:09,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:56:09,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:56:09,043 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand 3 states. [2019-11-25 08:56:09,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:09,061 INFO L93 Difference]: Finished difference Result 26 states and 31 transitions. [2019-11-25 08:56:09,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:56:09,062 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-25 08:56:09,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:09,063 INFO L225 Difference]: With dead ends: 26 [2019-11-25 08:56:09,063 INFO L226 Difference]: Without dead ends: 25 [2019-11-25 08:56:09,063 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:56:09,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-25 08:56:09,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-11-25 08:56:09,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-25 08:56:09,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2019-11-25 08:56:09,067 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 6 [2019-11-25 08:56:09,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:09,068 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2019-11-25 08:56:09,068 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:56:09,068 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2019-11-25 08:56:09,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-25 08:56:09,068 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:09,068 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:56:09,069 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-25 08:56:09,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:09,070 INFO L82 PathProgramCache]: Analyzing trace with hash -248985325, now seen corresponding path program 1 times [2019-11-25 08:56:09,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:09,070 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105563536] [2019-11-25 08:56:09,070 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:09,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:09,110 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:09,111 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105563536] [2019-11-25 08:56:09,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:09,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:56:09,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167328766] [2019-11-25 08:56:09,112 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:56:09,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:09,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:56:09,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:56:09,112 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand 4 states. [2019-11-25 08:56:09,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:09,214 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2019-11-25 08:56:09,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:56:09,215 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-25 08:56:09,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:09,216 INFO L225 Difference]: With dead ends: 50 [2019-11-25 08:56:09,216 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:56:09,216 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:56:09,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:56:09,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:56:09,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:56:09,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:56:09,217 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-11-25 08:56:09,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:09,217 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:56:09,217 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:56:09,217 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:56:09,218 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:56:09,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-25 08:56:09,267 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2019-11-25 08:56:09,267 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-25 08:56:09,267 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2019-11-25 08:56:09,267 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2019-11-25 08:56:09,268 INFO L444 ceAbstractionStarter]: For program point L27(lines 27 32) no Hoare annotation was computed. [2019-11-25 08:56:09,268 INFO L440 ceAbstractionStarter]: At program point L27-2(lines 18 34) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648)) (<= ULTIMATE.start_main_~y~0 2147483647)) [2019-11-25 08:56:09,268 INFO L444 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2019-11-25 08:56:09,268 INFO L444 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2019-11-25 08:56:09,268 INFO L444 ceAbstractionStarter]: For program point L19(lines 19 33) no Hoare annotation was computed. [2019-11-25 08:56:09,268 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2019-11-25 08:56:09,268 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2019-11-25 08:56:09,269 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2019-11-25 08:56:09,269 INFO L444 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2019-11-25 08:56:09,269 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-25 08:56:09,269 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2019-11-25 08:56:09,269 INFO L444 ceAbstractionStarter]: For program point L30-1(line 30) no Hoare annotation was computed. [2019-11-25 08:56:09,269 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-25 08:56:09,269 INFO L444 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2019-11-25 08:56:09,269 INFO L444 ceAbstractionStarter]: For program point L28-1(line 28) no Hoare annotation was computed. [2019-11-25 08:56:09,269 INFO L444 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2019-11-25 08:56:09,269 INFO L444 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2019-11-25 08:56:09,270 INFO L444 ceAbstractionStarter]: For program point L20(lines 20 25) no Hoare annotation was computed. [2019-11-25 08:56:09,270 INFO L444 ceAbstractionStarter]: For program point L18-2(lines 18 34) no Hoare annotation was computed. [2019-11-25 08:56:09,270 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2019-11-25 08:56:09,270 INFO L447 ceAbstractionStarter]: At program point L35(lines 13 36) the Hoare annotation is: true [2019-11-25 08:56:09,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:56:09 BoogieIcfgContainer [2019-11-25 08:56:09,293 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:56:09,294 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:56:09,294 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:56:09,294 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:56:09,307 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:56:08" (3/4) ... [2019-11-25 08:56:09,311 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:56:09,321 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-25 08:56:09,323 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-25 08:56:09,386 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8ba86701-43d2-4068-8726-3cd72a804a22/bin/uautomizer/witness.graphml [2019-11-25 08:56:09,389 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:56:09,391 INFO L168 Benchmark]: Toolchain (without parser) took 1770.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 950.1 MB in the beginning and 1.0 GB in the end (delta: -89.0 MB). Peak memory consumption was 48.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:09,392 INFO L168 Benchmark]: CDTParser took 1.08 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:56:09,392 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -177.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:09,393 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:56:09,393 INFO L168 Benchmark]: Boogie Preprocessor took 31.36 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:56:09,394 INFO L168 Benchmark]: RCFGBuilder took 332.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:09,394 INFO L168 Benchmark]: TraceAbstraction took 998.92 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: 67.3 MB). Peak memory consumption was 67.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:09,394 INFO L168 Benchmark]: Witness Printer took 95.61 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. [2019-11-25 08:56:09,397 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.08 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 272.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -177.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.36 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 332.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 998.92 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: 67.3 MB). Peak memory consumption was 67.3 MB. Max. memory is 11.5 GB. * Witness Printer took 95.61 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: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: 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: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (x <= 2147483647 && 0 <= x + 2147483648) && y <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 8 error locations. Result: SAFE, OverallTime: 0.8s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 108 SDtfs, 74 SDslu, 30 SDs, 0 SdLazy, 91 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 9 NumberOfFragments, 13 HoareAnnotationTreeSize, 2 FomulaSimplifications, 46 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 25 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 580 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...