./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.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 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_91f9a762-d1e0-4df8-bcdc-543f60acc205/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_91f9a762-d1e0-4df8-bcdc-543f60acc205/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_91f9a762-d1e0-4df8-bcdc-543f60acc205/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_91f9a762-d1e0-4df8-bcdc-543f60acc205/bin-2019/uautomizer/config/AutomizerReach.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_91f9a762-d1e0-4df8-bcdc-543f60acc205/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_91f9a762-d1e0-4df8-bcdc-543f60acc205/bin-2019/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 687269bb6882b72a3d48999f1e5c55a1d5283a94 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:19:31,488 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:19:31,490 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:19:31,497 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:19:31,497 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:19:31,498 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:19:31,499 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:19:31,500 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:19:31,501 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:19:31,501 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:19:31,502 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:19:31,502 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:19:31,503 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:19:31,503 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:19:31,504 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:19:31,504 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:19:31,505 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:19:31,506 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:19:31,508 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:19:31,509 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:19:31,509 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:19:31,510 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:19:31,512 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:19:31,512 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:19:31,512 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:19:31,513 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:19:31,513 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:19:31,514 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:19:31,514 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:19:31,515 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:19:31,515 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:19:31,516 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:19:31,516 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:19:31,516 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:19:31,517 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:19:31,517 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:19:31,517 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_91f9a762-d1e0-4df8-bcdc-543f60acc205/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-28 12:19:31,527 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:19:31,527 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:19:31,528 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:19:31,528 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:19:31,528 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:19:31,528 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:19:31,528 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:19:31,529 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:19:31,529 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 12:19:31,529 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:19:31,529 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:19:31,529 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:19:31,529 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:19:31,529 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:19:31,529 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-28 12:19:31,529 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:19:31,529 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:19:31,530 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:19:31,530 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:19:31,530 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:19:31,530 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:19:31,530 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:19:31,530 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:19:31,530 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:19:31,530 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:19:31,531 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:19:31,531 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:19:31,531 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:19:31,531 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 12:19:31,531 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_91f9a762-d1e0-4df8-bcdc-543f60acc205/bin-2019/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 -> 687269bb6882b72a3d48999f1e5c55a1d5283a94 [2018-11-28 12:19:31,552 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:19:31,560 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:19:31,562 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:19:31,563 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:19:31,563 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:19:31,563 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_91f9a762-d1e0-4df8-bcdc-543f60acc205/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-28 12:19:31,598 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_91f9a762-d1e0-4df8-bcdc-543f60acc205/bin-2019/uautomizer/data/716d4ef74/98bb05eb2c5f4c3b94a9bee53d1b7cd7/FLAG200655805 [2018-11-28 12:19:31,988 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:19:31,989 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_91f9a762-d1e0-4df8-bcdc-543f60acc205/sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-28 12:19:31,993 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_91f9a762-d1e0-4df8-bcdc-543f60acc205/bin-2019/uautomizer/data/716d4ef74/98bb05eb2c5f4c3b94a9bee53d1b7cd7/FLAG200655805 [2018-11-28 12:19:32,001 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_91f9a762-d1e0-4df8-bcdc-543f60acc205/bin-2019/uautomizer/data/716d4ef74/98bb05eb2c5f4c3b94a9bee53d1b7cd7 [2018-11-28 12:19:32,003 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:19:32,004 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:19:32,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:19:32,004 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:19:32,007 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:19:32,008 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:19:32" (1/1) ... [2018-11-28 12:19:32,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a39b0ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:19:32, skipping insertion in model container [2018-11-28 12:19:32,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:19:32" (1/1) ... [2018-11-28 12:19:32,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:19:32,026 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:19:32,126 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:19:32,128 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:19:32,138 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:19:32,146 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:19:32,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:19:32 WrapperNode [2018-11-28 12:19:32,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:19:32,147 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:19:32,147 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:19:32,147 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:19:32,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:19:32" (1/1) ... [2018-11-28 12:19:32,155 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:19:32" (1/1) ... [2018-11-28 12:19:32,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:19:32,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:19:32,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:19:32,160 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:19:32,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:19:32" (1/1) ... [2018-11-28 12:19:32,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:19:32" (1/1) ... [2018-11-28 12:19:32,169 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:19:32" (1/1) ... [2018-11-28 12:19:32,169 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:19:32" (1/1) ... [2018-11-28 12:19:32,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:19:32" (1/1) ... [2018-11-28 12:19:32,210 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:19:32" (1/1) ... [2018-11-28 12:19:32,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:19:32" (1/1) ... [2018-11-28 12:19:32,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:19:32,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:19:32,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:19:32,212 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:19:32,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:19:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_91f9a762-d1e0-4df8-bcdc-543f60acc205/bin-2019/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 [2018-11-28 12:19:32,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:19:32,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:19:32,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:19:32,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:19:32,255 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:19:32,255 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:19:32,383 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:19:32,384 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-28 12:19:32,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:19:32 BoogieIcfgContainer [2018-11-28 12:19:32,384 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:19:32,385 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:19:32,385 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:19:32,388 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:19:32,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:19:32" (1/3) ... [2018-11-28 12:19:32,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c0b2af8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:19:32, skipping insertion in model container [2018-11-28 12:19:32,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:19:32" (2/3) ... [2018-11-28 12:19:32,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c0b2af8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:19:32, skipping insertion in model container [2018-11-28 12:19:32,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:19:32" (3/3) ... [2018-11-28 12:19:32,391 INFO L112 eAbstractionObserver]: Analyzing ICFG TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-28 12:19:32,397 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:19:32,401 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-11-28 12:19:32,414 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2018-11-28 12:19:32,441 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:19:32,441 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:19:32,441 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:19:32,441 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:19:32,442 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:19:32,442 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:19:32,442 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:19:32,442 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:19:32,442 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:19:32,454 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2018-11-28 12:19:32,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 12:19:32,458 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:19:32,458 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:19:32,460 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:19:32,464 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:19:32,465 INFO L82 PathProgramCache]: Analyzing trace with hash -1025703619, now seen corresponding path program 1 times [2018-11-28 12:19:32,467 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:19:32,468 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:19:32,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:19:32,506 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:19:32,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:19:32,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:19:32,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:19:32,577 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:19:32,577 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:19:32,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:19:32,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:19:32,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:19:32,591 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 3 states. [2018-11-28 12:19:32,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:19:32,655 INFO L93 Difference]: Finished difference Result 60 states and 70 transitions. [2018-11-28 12:19:32,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:19:32,656 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-28 12:19:32,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:19:32,663 INFO L225 Difference]: With dead ends: 60 [2018-11-28 12:19:32,663 INFO L226 Difference]: Without dead ends: 45 [2018-11-28 12:19:32,666 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:19:32,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-28 12:19:32,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 35. [2018-11-28 12:19:32,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-28 12:19:32,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2018-11-28 12:19:32,690 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 9 [2018-11-28 12:19:32,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:19:32,690 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2018-11-28 12:19:32,690 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:19:32,691 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2018-11-28 12:19:32,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 12:19:32,691 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:19:32,691 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:19:32,691 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:19:32,692 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:19:32,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1025703427, now seen corresponding path program 1 times [2018-11-28 12:19:32,692 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:19:32,692 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:19:32,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:19:32,694 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:19:32,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:19:32,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:19:32,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:19:32,718 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:19:32,718 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:19:32,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:19:32,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:19:32,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:19:32,720 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand 3 states. [2018-11-28 12:19:32,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:19:32,769 INFO L93 Difference]: Finished difference Result 54 states and 66 transitions. [2018-11-28 12:19:32,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:19:32,769 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-28 12:19:32,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:19:32,770 INFO L225 Difference]: With dead ends: 54 [2018-11-28 12:19:32,770 INFO L226 Difference]: Without dead ends: 52 [2018-11-28 12:19:32,770 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:19:32,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-11-28 12:19:32,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 43. [2018-11-28 12:19:32,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-28 12:19:32,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 54 transitions. [2018-11-28 12:19:32,775 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 54 transitions. Word has length 9 [2018-11-28 12:19:32,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:19:32,776 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 54 transitions. [2018-11-28 12:19:32,776 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:19:32,776 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 54 transitions. [2018-11-28 12:19:32,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 12:19:32,776 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:19:32,776 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:19:32,776 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:19:32,777 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:19:32,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1732041064, now seen corresponding path program 1 times [2018-11-28 12:19:32,777 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:19:32,777 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:19:32,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:19:32,778 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:19:32,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:19:32,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:19:32,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:19:32,818 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:19:32,818 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:19:32,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:19:32,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:19:32,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:19:32,819 INFO L87 Difference]: Start difference. First operand 43 states and 54 transitions. Second operand 3 states. [2018-11-28 12:19:32,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:19:32,849 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2018-11-28 12:19:32,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:19:32,850 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-28 12:19:32,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:19:32,850 INFO L225 Difference]: With dead ends: 43 [2018-11-28 12:19:32,850 INFO L226 Difference]: Without dead ends: 41 [2018-11-28 12:19:32,851 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:19:32,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-28 12:19:32,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-28 12:19:32,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-28 12:19:32,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2018-11-28 12:19:32,855 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 10 [2018-11-28 12:19:32,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:19:32,855 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2018-11-28 12:19:32,855 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:19:32,855 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2018-11-28 12:19:32,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 12:19:32,856 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:19:32,856 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:19:32,856 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:19:32,856 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:19:32,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1732035106, now seen corresponding path program 1 times [2018-11-28 12:19:32,857 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:19:32,857 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:19:32,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:19:32,858 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:19:32,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:19:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:19:32,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:19:32,878 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:19:32,878 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:19:32,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:19:32,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:19:32,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:19:32,878 INFO L87 Difference]: Start difference. First operand 41 states and 51 transitions. Second operand 3 states. [2018-11-28 12:19:32,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:19:32,911 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2018-11-28 12:19:32,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:19:32,912 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-28 12:19:32,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:19:32,912 INFO L225 Difference]: With dead ends: 41 [2018-11-28 12:19:32,912 INFO L226 Difference]: Without dead ends: 39 [2018-11-28 12:19:32,912 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:19:32,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-28 12:19:32,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-11-28 12:19:32,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-28 12:19:32,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2018-11-28 12:19:32,916 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 10 [2018-11-28 12:19:32,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:19:32,917 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2018-11-28 12:19:32,917 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:19:32,917 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2018-11-28 12:19:32,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-28 12:19:32,917 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:19:32,917 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:19:32,917 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:19:32,918 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:19:32,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1209340330, now seen corresponding path program 1 times [2018-11-28 12:19:32,918 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:19:32,918 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:19:32,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:19:32,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:19:32,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:19:32,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:19:32,948 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:19:32,948 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:19:32,948 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:19:32,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 12:19:32,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:19:32,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:19:32,949 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand 4 states. [2018-11-28 12:19:32,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:19:32,990 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2018-11-28 12:19:32,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:19:32,991 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-11-28 12:19:32,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:19:32,991 INFO L225 Difference]: With dead ends: 39 [2018-11-28 12:19:32,991 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 12:19:32,991 INFO L631 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 [2018-11-28 12:19:32,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 12:19:32,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 12:19:32,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 12:19:32,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 12:19:32,992 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-11-28 12:19:32,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:19:32,992 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:19:32,992 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 12:19:32,992 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 12:19:32,992 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 12:19:32,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 12:19:33,013 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 12:19:33,014 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:19:33,014 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:19:33,014 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 12:19:33,014 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 12:19:33,014 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 12:19:33,014 INFO L448 ceAbstractionStarter]: For program point L33(lines 33 37) no Hoare annotation was computed. [2018-11-28 12:19:33,014 INFO L448 ceAbstractionStarter]: For program point L33-2(lines 33 37) no Hoare annotation was computed. [2018-11-28 12:19:33,014 INFO L448 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-11-28 12:19:33,014 INFO L448 ceAbstractionStarter]: For program point L29-1(line 29) no Hoare annotation was computed. [2018-11-28 12:19:33,014 INFO L448 ceAbstractionStarter]: For program point L27(line 27) no Hoare annotation was computed. [2018-11-28 12:19:33,014 INFO L448 ceAbstractionStarter]: For program point L27-1(line 27) no Hoare annotation was computed. [2018-11-28 12:19:33,015 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 39) no Hoare annotation was computed. [2018-11-28 12:19:33,015 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 19 42) no Hoare annotation was computed. [2018-11-28 12:19:33,015 INFO L444 ceAbstractionStarter]: At program point L25-2(lines 24 40) the Hoare annotation is: (and (<= main_~y~0 2147483647) (<= main_~x~0 2147483648)) [2018-11-28 12:19:33,015 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2018-11-28 12:19:33,015 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2018-11-28 12:19:33,015 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 19 42) no Hoare annotation was computed. [2018-11-28 12:19:33,015 INFO L448 ceAbstractionStarter]: For program point mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2018-11-28 12:19:33,015 INFO L448 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2018-11-28 12:19:33,016 INFO L448 ceAbstractionStarter]: For program point L36(line 36) no Hoare annotation was computed. [2018-11-28 12:19:33,016 INFO L448 ceAbstractionStarter]: For program point L36-1(line 36) no Hoare annotation was computed. [2018-11-28 12:19:33,016 INFO L448 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-11-28 12:19:33,016 INFO L448 ceAbstractionStarter]: For program point L34-1(line 34) no Hoare annotation was computed. [2018-11-28 12:19:33,016 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 19 42) the Hoare annotation is: true [2018-11-28 12:19:33,016 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2018-11-28 12:19:33,016 INFO L448 ceAbstractionStarter]: For program point L26-2(lines 26 30) no Hoare annotation was computed. [2018-11-28 12:19:33,016 INFO L448 ceAbstractionStarter]: For program point L24-2(lines 24 40) no Hoare annotation was computed. [2018-11-28 12:19:33,016 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2018-11-28 12:19:33,016 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2018-11-28 12:19:33,016 INFO L448 ceAbstractionStarter]: For program point mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2018-11-28 12:19:33,017 INFO L448 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2018-11-28 12:19:33,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:19:33 BoogieIcfgContainer [2018-11-28 12:19:33,026 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:19:33,027 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:19:33,027 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:19:33,027 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:19:33,027 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:19:32" (3/4) ... [2018-11-28 12:19:33,030 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 12:19:33,035 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 12:19:33,036 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 12:19:33,039 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 12:19:33,039 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 12:19:33,039 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 12:19:33,071 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_91f9a762-d1e0-4df8-bcdc-543f60acc205/bin-2019/uautomizer/witness.graphml [2018-11-28 12:19:33,071 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:19:33,071 INFO L168 Benchmark]: Toolchain (without parser) took 1067.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 953.3 MB in the beginning and 1.0 GB in the end (delta: -94.8 MB). Peak memory consumption was 38.9 MB. Max. memory is 11.5 GB. [2018-11-28 12:19:33,072 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:19:33,072 INFO L168 Benchmark]: CACSL2BoogieTranslator took 142.47 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:19:33,073 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.83 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:19:33,073 INFO L168 Benchmark]: Boogie Preprocessor took 51.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 942.6 MB in the beginning and 1.1 GB in the end (delta: -197.3 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2018-11-28 12:19:33,073 INFO L168 Benchmark]: RCFGBuilder took 172.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:19:33,074 INFO L168 Benchmark]: TraceAbstraction took 641.81 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: 66.6 MB). Peak memory consumption was 66.6 MB. Max. memory is 11.5 GB. [2018-11-28 12:19:33,074 INFO L168 Benchmark]: Witness Printer took 43.94 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:19:33,076 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 142.47 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.83 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 942.6 MB in the beginning and 1.1 GB in the end (delta: -197.3 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 172.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 641.81 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: 66.6 MB). Peak memory consumption was 66.6 MB. Max. memory is 11.5 GB. * Witness Printer took 43.94 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 27]: 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 - PositiveResult [Line: 34]: 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: 29]: 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, 32 locations, 8 error locations. SAFE Result, 0.5s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 86 SDtfs, 84 SDslu, 48 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=43occurred 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, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 926 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...