./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2-modified1000_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_83c0b075-73d0-4b5a-9dc6-e1e372a35d71/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_83c0b075-73d0-4b5a-9dc6-e1e372a35d71/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_83c0b075-73d0-4b5a-9dc6-e1e372a35d71/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_83c0b075-73d0-4b5a-9dc6-e1e372a35d71/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2-modified1000_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_83c0b075-73d0-4b5a-9dc6-e1e372a35d71/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_83c0b075-73d0-4b5a-9dc6-e1e372a35d71/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 2b2cc94eb5b8374a9980482fd0dfec59d6d2cf62 ........................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 03:40:57,367 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 03:40:57,369 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 03:40:57,377 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 03:40:57,377 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 03:40:57,377 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 03:40:57,378 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 03:40:57,379 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 03:40:57,380 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 03:40:57,381 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 03:40:57,382 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 03:40:57,382 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 03:40:57,382 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 03:40:57,383 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 03:40:57,384 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 03:40:57,384 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 03:40:57,385 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 03:40:57,386 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 03:40:57,387 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 03:40:57,388 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 03:40:57,389 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 03:40:57,390 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 03:40:57,392 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 03:40:57,392 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 03:40:57,392 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 03:40:57,393 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 03:40:57,393 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 03:40:57,394 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 03:40:57,395 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 03:40:57,395 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 03:40:57,396 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 03:40:57,396 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 03:40:57,396 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 03:40:57,396 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 03:40:57,397 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 03:40:57,397 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 03:40:57,397 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_83c0b075-73d0-4b5a-9dc6-e1e372a35d71/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-23 03:40:57,407 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 03:40:57,407 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 03:40:57,408 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 03:40:57,408 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 03:40:57,408 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 03:40:57,408 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 03:40:57,408 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 03:40:57,409 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 03:40:57,409 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 03:40:57,409 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 03:40:57,409 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 03:40:57,409 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 03:40:57,409 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 03:40:57,409 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 03:40:57,409 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-23 03:40:57,410 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 03:40:57,410 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 03:40:57,410 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 03:40:57,410 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 03:40:57,410 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 03:40:57,410 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 03:40:57,410 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 03:40:57,411 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 03:40:57,411 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 03:40:57,411 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 03:40:57,411 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 03:40:57,411 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 03:40:57,411 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 03:40:57,411 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 03:40:57,411 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_83c0b075-73d0-4b5a-9dc6-e1e372a35d71/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 -> 2b2cc94eb5b8374a9980482fd0dfec59d6d2cf62 [2018-11-23 03:40:57,432 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 03:40:57,440 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 03:40:57,442 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 03:40:57,443 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 03:40:57,443 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 03:40:57,444 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_83c0b075-73d0-4b5a-9dc6-e1e372a35d71/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2-modified1000_true-termination_true-no-overflow.c [2018-11-23 03:40:57,480 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_83c0b075-73d0-4b5a-9dc6-e1e372a35d71/bin-2019/uautomizer/data/8acf0b8e9/3120a2ae17374862a9efa383fa540261/FLAG2cdea71ae [2018-11-23 03:40:57,874 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 03:40:57,874 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_83c0b075-73d0-4b5a-9dc6-e1e372a35d71/sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2-modified1000_true-termination_true-no-overflow.c [2018-11-23 03:40:57,878 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_83c0b075-73d0-4b5a-9dc6-e1e372a35d71/bin-2019/uautomizer/data/8acf0b8e9/3120a2ae17374862a9efa383fa540261/FLAG2cdea71ae [2018-11-23 03:40:57,888 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_83c0b075-73d0-4b5a-9dc6-e1e372a35d71/bin-2019/uautomizer/data/8acf0b8e9/3120a2ae17374862a9efa383fa540261 [2018-11-23 03:40:57,891 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 03:40:57,892 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 03:40:57,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 03:40:57,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 03:40:57,896 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 03:40:57,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:40:57" (1/1) ... [2018-11-23 03:40:57,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56c8d80d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:57, skipping insertion in model container [2018-11-23 03:40:57,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:40:57" (1/1) ... [2018-11-23 03:40:57,904 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 03:40:57,916 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 03:40:58,016 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:40:58,018 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 03:40:58,026 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:40:58,034 INFO L195 MainTranslator]: Completed translation [2018-11-23 03:40:58,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:58 WrapperNode [2018-11-23 03:40:58,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 03:40:58,035 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 03:40:58,035 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 03:40:58,035 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 03:40:58,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:58" (1/1) ... [2018-11-23 03:40:58,045 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:58" (1/1) ... [2018-11-23 03:40:58,050 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 03:40:58,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 03:40:58,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 03:40:58,050 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 03:40:58,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:58" (1/1) ... [2018-11-23 03:40:58,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:58" (1/1) ... [2018-11-23 03:40:58,056 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:58" (1/1) ... [2018-11-23 03:40:58,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:58" (1/1) ... [2018-11-23 03:40:58,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:58" (1/1) ... [2018-11-23 03:40:58,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:58" (1/1) ... [2018-11-23 03:40:58,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:58" (1/1) ... [2018-11-23 03:40:58,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 03:40:58,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 03:40:58,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 03:40:58,064 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 03:40:58,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_83c0b075-73d0-4b5a-9dc6-e1e372a35d71/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 [2018-11-23 03:40:58,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 03:40:58,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 03:40:58,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 03:40:58,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 03:40:58,143 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 03:40:58,143 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 03:40:58,257 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 03:40:58,258 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 03:40:58,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:40:58 BoogieIcfgContainer [2018-11-23 03:40:58,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 03:40:58,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 03:40:58,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 03:40:58,261 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 03:40:58,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:40:57" (1/3) ... [2018-11-23 03:40:58,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54cfb236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:40:58, skipping insertion in model container [2018-11-23 03:40:58,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:58" (2/3) ... [2018-11-23 03:40:58,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54cfb236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:40:58, skipping insertion in model container [2018-11-23 03:40:58,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:40:58" (3/3) ... [2018-11-23 03:40:58,264 INFO L112 eAbstractionObserver]: Analyzing ICFG Urban-WST2013-Fig2-modified1000_true-termination_true-no-overflow.c [2018-11-23 03:40:58,272 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 03:40:58,277 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-23 03:40:58,290 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-23 03:40:58,315 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 03:40:58,316 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 03:40:58,316 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 03:40:58,316 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 03:40:58,316 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 03:40:58,316 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 03:40:58,316 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 03:40:58,316 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 03:40:58,316 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 03:40:58,331 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-11-23 03:40:58,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-23 03:40:58,336 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:40:58,337 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:40:58,339 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 03:40:58,343 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:40:58,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1374165426, now seen corresponding path program 1 times [2018-11-23 03:40:58,345 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 03:40:58,345 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 03:40:58,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:40:58,388 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:40:58,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:40:58,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:40:58,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:40:58,437 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:40:58,437 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 03:40:58,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 03:40:58,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 03:40:58,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 03:40:58,452 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2018-11-23 03:40:58,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:40:58,493 INFO L93 Difference]: Finished difference Result 38 states and 48 transitions. [2018-11-23 03:40:58,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 03:40:58,494 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-23 03:40:58,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:40:58,502 INFO L225 Difference]: With dead ends: 38 [2018-11-23 03:40:58,502 INFO L226 Difference]: Without dead ends: 18 [2018-11-23 03:40:58,505 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 03:40:58,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-23 03:40:58,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-23 03:40:58,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-23 03:40:58,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-11-23 03:40:58,534 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 8 [2018-11-23 03:40:58,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:40:58,535 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-11-23 03:40:58,535 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 03:40:58,535 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-11-23 03:40:58,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-23 03:40:58,535 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:40:58,535 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:40:58,536 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 03:40:58,536 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:40:58,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1374165371, now seen corresponding path program 1 times [2018-11-23 03:40:58,536 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 03:40:58,536 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 03:40:58,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:40:58,537 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:40:58,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:40:58,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:40:58,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:40:58,578 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:40:58,579 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 03:40:58,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 03:40:58,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 03:40:58,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 03:40:58,581 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 3 states. [2018-11-23 03:40:58,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:40:58,598 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2018-11-23 03:40:58,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 03:40:58,599 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-23 03:40:58,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:40:58,599 INFO L225 Difference]: With dead ends: 19 [2018-11-23 03:40:58,599 INFO L226 Difference]: Without dead ends: 18 [2018-11-23 03:40:58,600 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 03:40:58,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-23 03:40:58,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2018-11-23 03:40:58,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-23 03:40:58,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-11-23 03:40:58,603 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 8 [2018-11-23 03:40:58,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:40:58,603 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2018-11-23 03:40:58,604 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 03:40:58,604 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2018-11-23 03:40:58,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-23 03:40:58,604 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:40:58,604 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:40:58,604 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 03:40:58,605 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:40:58,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1867753438, now seen corresponding path program 1 times [2018-11-23 03:40:58,605 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 03:40:58,605 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 03:40:58,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:40:58,606 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:40:58,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:40:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:40:58,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:40:58,636 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 03:40:58,636 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_83c0b075-73d0-4b5a-9dc6-e1e372a35d71/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 03:40:58,643 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:40:58,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:40:58,654 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 03:40:58,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 03:40:58,685 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 03:40:58,685 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2018-11-23 03:40:58,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 03:40:58,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 03:40:58,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-23 03:40:58,686 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 5 states. [2018-11-23 03:40:58,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:40:58,742 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2018-11-23 03:40:58,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 03:40:58,742 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-11-23 03:40:58,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:40:58,743 INFO L225 Difference]: With dead ends: 31 [2018-11-23 03:40:58,743 INFO L226 Difference]: Without dead ends: 19 [2018-11-23 03:40:58,743 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-23 03:40:58,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-23 03:40:58,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-23 03:40:58,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-23 03:40:58,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2018-11-23 03:40:58,746 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 11 [2018-11-23 03:40:58,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:40:58,746 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2018-11-23 03:40:58,746 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 03:40:58,746 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2018-11-23 03:40:58,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-23 03:40:58,747 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:40:58,747 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:40:58,747 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 03:40:58,747 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:40:58,748 INFO L82 PathProgramCache]: Analyzing trace with hash -830353999, now seen corresponding path program 1 times [2018-11-23 03:40:58,748 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 03:40:58,748 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 03:40:58,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:40:58,749 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:40:58,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:40:58,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:40:58,787 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-23 03:40:58,787 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:40:58,787 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 03:40:58,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 03:40:58,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 03:40:58,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 03:40:58,788 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 3 states. [2018-11-23 03:40:58,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:40:58,796 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2018-11-23 03:40:58,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 03:40:58,796 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-23 03:40:58,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:40:58,797 INFO L225 Difference]: With dead ends: 19 [2018-11-23 03:40:58,797 INFO L226 Difference]: Without dead ends: 18 [2018-11-23 03:40:58,797 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 03:40:58,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-23 03:40:58,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-23 03:40:58,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-23 03:40:58,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2018-11-23 03:40:58,801 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 15 [2018-11-23 03:40:58,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:40:58,801 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2018-11-23 03:40:58,801 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 03:40:58,801 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2018-11-23 03:40:58,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-23 03:40:58,802 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:40:58,802 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:40:58,802 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 03:40:58,802 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:40:58,802 INFO L82 PathProgramCache]: Analyzing trace with hash -830352301, now seen corresponding path program 1 times [2018-11-23 03:40:58,802 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 03:40:58,803 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 03:40:58,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:40:58,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:40:58,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:40:58,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:40:58,838 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-23 03:40:58,838 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:40:58,839 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 03:40:58,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 03:40:58,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 03:40:58,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 03:40:58,839 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 3 states. [2018-11-23 03:40:58,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:40:58,863 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2018-11-23 03:40:58,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 03:40:58,864 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-23 03:40:58,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:40:58,864 INFO L225 Difference]: With dead ends: 18 [2018-11-23 03:40:58,864 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 03:40:58,865 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 03:40:58,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 03:40:58,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 03:40:58,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 03:40:58,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 03:40:58,866 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-11-23 03:40:58,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:40:58,866 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 03:40:58,866 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 03:40:58,866 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 03:40:58,866 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 03:40:58,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 03:40:58,897 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 03:40:58,897 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 03:40:58,897 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 03:40:58,897 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 03:40:58,897 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 03:40:58,897 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 03:40:58,897 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-23 03:40:58,897 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 14 27) no Hoare annotation was computed. [2018-11-23 03:40:58,898 INFO L444 ceAbstractionStarter]: At program point L21-2(lines 21 23) the Hoare annotation is: (and (<= main_~x1~0 10) (<= 0 (+ main_~x1~0 2147483648)) (<= main_~x2~0 1000)) [2018-11-23 03:40:58,898 INFO L448 ceAbstractionStarter]: For program point L21-3(lines 21 23) no Hoare annotation was computed. [2018-11-23 03:40:58,898 INFO L444 ceAbstractionStarter]: At program point L19-2(lines 19 25) the Hoare annotation is: (<= 0 (+ main_~x1~0 2147483648)) [2018-11-23 03:40:58,898 INFO L448 ceAbstractionStarter]: For program point L19-3(lines 19 25) no Hoare annotation was computed. [2018-11-23 03:40:58,898 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 14 27) no Hoare annotation was computed. [2018-11-23 03:40:58,898 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2018-11-23 03:40:58,898 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 14 27) the Hoare annotation is: true [2018-11-23 03:40:58,898 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-23 03:40:58,898 INFO L448 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-11-23 03:40:58,899 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-23 03:40:58,899 INFO L448 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-11-23 03:40:58,899 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2018-11-23 03:40:58,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:40:58 BoogieIcfgContainer [2018-11-23 03:40:58,906 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 03:40:58,907 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 03:40:58,907 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 03:40:58,907 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 03:40:58,907 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:40:58" (3/4) ... [2018-11-23 03:40:58,909 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 03:40:58,913 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 03:40:58,913 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 03:40:58,916 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 03:40:58,916 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 03:40:58,916 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 03:40:58,941 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_83c0b075-73d0-4b5a-9dc6-e1e372a35d71/bin-2019/uautomizer/witness.graphml [2018-11-23 03:40:58,941 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 03:40:58,942 INFO L168 Benchmark]: Toolchain (without parser) took 1050.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 959.3 MB in the beginning and 1.1 GB in the end (delta: -104.7 MB). Peak memory consumption was 46.3 MB. Max. memory is 11.5 GB. [2018-11-23 03:40:58,942 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:40:58,943 INFO L168 Benchmark]: CACSL2BoogieTranslator took 141.70 ms. Allocated memory is still 1.0 GB. Free memory was 959.3 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 03:40:58,943 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.67 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:40:58,943 INFO L168 Benchmark]: Boogie Preprocessor took 13.21 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 03:40:58,944 INFO L168 Benchmark]: RCFGBuilder took 194.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -188.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-23 03:40:58,944 INFO L168 Benchmark]: TraceAbstraction took 647.56 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: 66.9 MB). Peak memory consumption was 66.9 MB. Max. memory is 11.5 GB. [2018-11-23 03:40:58,944 INFO L168 Benchmark]: Witness Printer took 34.39 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. [2018-11-23 03:40:58,946 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 141.70 ms. Allocated memory is still 1.0 GB. Free memory was 959.3 MB in the beginning and 948.5 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 14.67 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.21 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 194.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -188.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 647.56 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: 66.9 MB). Peak memory consumption was 66.9 MB. Max. memory is 11.5 GB. * Witness Printer took 34.39 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 24]: 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: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 <= x1 + 2147483648 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (x1 <= 10 && 0 <= x1 + 2147483648) && x2 <= 1000 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 20 locations, 4 error locations. SAFE Result, 0.5s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 55 SDtfs, 18 SDslu, 39 SDs, 0 SdLazy, 51 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 21 HoareAnnotationTreeSize, 6 FomulaSimplifications, 34 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 1528 SizeOfPredicates, 0 NumberOfNonLiveVariables, 28 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 15/16 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...