./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8a8add4f-c566-4b1a-9d99-2b30ee19826b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8a8add4f-c566-4b1a-9d99-2b30ee19826b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8a8add4f-c566-4b1a-9d99-2b30ee19826b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8a8add4f-c566-4b1a-9d99-2b30ee19826b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8a8add4f-c566-4b1a-9d99-2b30ee19826b/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8a8add4f-c566-4b1a-9d99-2b30ee19826b/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f55c3c29f65baba8ba49ec35fe2e62008dfb74b3 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 22:30:55,308 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:30:55,310 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:30:55,320 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:30:55,320 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:30:55,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:30:55,323 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:30:55,325 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:30:55,326 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:30:55,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:30:55,328 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:30:55,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:30:55,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:30:55,331 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:30:55,332 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:30:55,333 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:30:55,333 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:30:55,334 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:30:55,336 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:30:55,338 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:30:55,339 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:30:55,340 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:30:55,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:30:55,342 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:30:55,344 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:30:55,345 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:30:55,345 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:30:55,346 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:30:55,347 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:30:55,348 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:30:55,348 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:30:55,348 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:30:55,349 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:30:55,350 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:30:55,351 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:30:55,351 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:30:55,352 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:30:55,352 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:30:55,352 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:30:55,353 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:30:55,354 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:30:55,354 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8a8add4f-c566-4b1a-9d99-2b30ee19826b/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-19 22:30:55,368 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:30:55,368 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:30:55,369 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:30:55,370 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:30:55,370 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:30:55,370 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:30:55,370 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 22:30:55,371 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:30:55,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:30:55,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 22:30:55,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 22:30:55,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 22:30:55,372 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-19 22:30:55,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:30:55,372 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:30:55,372 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 22:30:55,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:30:55,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:30:55,373 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 22:30:55,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 22:30:55,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 22:30:55,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:30:55,374 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 22:30:55,375 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 22:30:55,375 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 22:30:55,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 22:30:55,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 22:30:55,376 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8a8add4f-c566-4b1a-9d99-2b30ee19826b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f55c3c29f65baba8ba49ec35fe2e62008dfb74b3 [2019-11-19 22:30:55,508 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:30:55,519 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:30:55,522 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:30:55,523 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:30:55,524 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:30:55,524 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8a8add4f-c566-4b1a-9d99-2b30ee19826b/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified.c [2019-11-19 22:30:55,593 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8a8add4f-c566-4b1a-9d99-2b30ee19826b/bin/uautomizer/data/839ec32dd/f78619b1134e4420b9f32499d3cc7583/FLAGd8e593e5f [2019-11-19 22:30:55,920 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:30:55,921 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8a8add4f-c566-4b1a-9d99-2b30ee19826b/sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified.c [2019-11-19 22:30:55,926 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8a8add4f-c566-4b1a-9d99-2b30ee19826b/bin/uautomizer/data/839ec32dd/f78619b1134e4420b9f32499d3cc7583/FLAGd8e593e5f [2019-11-19 22:30:56,302 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8a8add4f-c566-4b1a-9d99-2b30ee19826b/bin/uautomizer/data/839ec32dd/f78619b1134e4420b9f32499d3cc7583 [2019-11-19 22:30:56,305 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:30:56,314 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:30:56,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:30:56,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:30:56,318 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:30:56,319 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:30:56" (1/1) ... [2019-11-19 22:30:56,321 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d8f14c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:56, skipping insertion in model container [2019-11-19 22:30:56,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:30:56" (1/1) ... [2019-11-19 22:30:56,328 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:30:56,343 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:30:56,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:30:56,541 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:30:56,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:30:56,649 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:30:56,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:56 WrapperNode [2019-11-19 22:30:56,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:30:56,650 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:30:56,650 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:30:56,650 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:30:56,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:56" (1/1) ... [2019-11-19 22:30:56,668 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:56" (1/1) ... [2019-11-19 22:30:56,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:30:56,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:30:56,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:30:56,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:30:56,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:56" (1/1) ... [2019-11-19 22:30:56,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:56" (1/1) ... [2019-11-19 22:30:56,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:56" (1/1) ... [2019-11-19 22:30:56,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:56" (1/1) ... [2019-11-19 22:30:56,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:56" (1/1) ... [2019-11-19 22:30:56,702 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:56" (1/1) ... [2019-11-19 22:30:56,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:56" (1/1) ... [2019-11-19 22:30:56,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:30:56,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:30:56,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:30:56,708 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:30:56,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a8add4f-c566-4b1a-9d99-2b30ee19826b/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 22:30:56,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:30:56,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:30:56,977 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:30:56,977 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-19 22:30:56,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:30:56 BoogieIcfgContainer [2019-11-19 22:30:56,978 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:30:56,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 22:30:56,980 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 22:30:56,982 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 22:30:56,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:30:56" (1/3) ... [2019-11-19 22:30:56,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e6abc24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:30:56, skipping insertion in model container [2019-11-19 22:30:56,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:56" (2/3) ... [2019-11-19 22:30:56,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e6abc24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:30:56, skipping insertion in model container [2019-11-19 22:30:56,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:30:56" (3/3) ... [2019-11-19 22:30:56,985 INFO L109 eAbstractionObserver]: Analyzing ICFG BradleyMannaSipma-CAV2005-Fig1-modified.c [2019-11-19 22:30:56,994 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 22:30:57,000 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-19 22:30:57,010 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-19 22:30:57,048 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 22:30:57,048 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 22:30:57,049 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 22:30:57,049 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:30:57,049 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:30:57,049 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 22:30:57,049 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:30:57,050 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 22:30:57,063 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-11-19 22:30:57,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-19 22:30:57,069 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:30:57,072 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-19 22:30:57,080 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 22:30:57,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:57,086 INFO L82 PathProgramCache]: Analyzing trace with hash 29684842, now seen corresponding path program 1 times [2019-11-19 22:30:57,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:57,095 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406256319] [2019-11-19 22:30:57,095 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:57,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:30:57,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:30:57,258 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406256319] [2019-11-19 22:30:57,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:30:57,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 22:30:57,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24789755] [2019-11-19 22:30:57,264 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 22:30:57,264 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:30:57,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 22:30:57,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-19 22:30:57,276 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 4 states. [2019-11-19 22:30:57,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:30:57,384 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2019-11-19 22:30:57,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 22:30:57,385 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-11-19 22:30:57,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:30:57,392 INFO L225 Difference]: With dead ends: 28 [2019-11-19 22:30:57,392 INFO L226 Difference]: Without dead ends: 14 [2019-11-19 22:30:57,395 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-19 22:30:57,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-19 22:30:57,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-11-19 22:30:57,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-19 22:30:57,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2019-11-19 22:30:57,423 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 5 [2019-11-19 22:30:57,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:30:57,423 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2019-11-19 22:30:57,424 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 22:30:57,424 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-11-19 22:30:57,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-19 22:30:57,424 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:30:57,424 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-19 22:30:57,425 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 22:30:57,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:57,425 INFO L82 PathProgramCache]: Analyzing trace with hash 29685034, now seen corresponding path program 1 times [2019-11-19 22:30:57,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:57,426 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185967831] [2019-11-19 22:30:57,426 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:57,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:30:57,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:30:57,463 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185967831] [2019-11-19 22:30:57,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:30:57,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 22:30:57,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393029643] [2019-11-19 22:30:57,464 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 22:30:57,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:30:57,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 22:30:57,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-19 22:30:57,465 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 4 states. [2019-11-19 22:30:57,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:30:57,515 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2019-11-19 22:30:57,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 22:30:57,516 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-11-19 22:30:57,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:30:57,516 INFO L225 Difference]: With dead ends: 16 [2019-11-19 22:30:57,517 INFO L226 Difference]: Without dead ends: 14 [2019-11-19 22:30:57,517 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-19 22:30:57,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-19 22:30:57,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-11-19 22:30:57,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-19 22:30:57,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2019-11-19 22:30:57,521 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 5 [2019-11-19 22:30:57,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:30:57,521 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2019-11-19 22:30:57,521 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 22:30:57,522 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-11-19 22:30:57,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-19 22:30:57,522 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:30:57,522 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2019-11-19 22:30:57,523 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 22:30:57,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:57,523 INFO L82 PathProgramCache]: Analyzing trace with hash -199749339, now seen corresponding path program 1 times [2019-11-19 22:30:57,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:57,524 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696675219] [2019-11-19 22:30:57,524 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:57,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:30:57,584 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:30:57,585 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696675219] [2019-11-19 22:30:57,585 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291563557] [2019-11-19 22:30:57,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a8add4f-c566-4b1a-9d99-2b30ee19826b/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 22:30:57,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:30:57,621 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-19 22:30:57,626 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:30:57,684 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:30:57,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-19 22:30:57,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2019-11-19 22:30:57,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718568597] [2019-11-19 22:30:57,686 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-19 22:30:57,686 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:30:57,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 22:30:57,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-19 22:30:57,687 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 5 states. [2019-11-19 22:30:57,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:30:57,797 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2019-11-19 22:30:57,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 22:30:57,797 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-11-19 22:30:57,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:30:57,798 INFO L225 Difference]: With dead ends: 32 [2019-11-19 22:30:57,798 INFO L226 Difference]: Without dead ends: 31 [2019-11-19 22:30:57,799 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-19 22:30:57,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-19 22:30:57,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 17. [2019-11-19 22:30:57,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-19 22:30:57,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2019-11-19 22:30:57,804 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 9 [2019-11-19 22:30:57,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:30:57,804 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2019-11-19 22:30:57,805 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-19 22:30:57,805 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2019-11-19 22:30:57,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-19 22:30:57,805 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:30:57,806 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:30:58,010 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 22:30:58,011 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 22:30:58,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:58,011 INFO L82 PathProgramCache]: Analyzing trace with hash -199749147, now seen corresponding path program 1 times [2019-11-19 22:30:58,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:58,012 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692514590] [2019-11-19 22:30:58,012 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:30:58,070 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:30:58,070 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692514590] [2019-11-19 22:30:58,070 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976444343] [2019-11-19 22:30:58,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a8add4f-c566-4b1a-9d99-2b30ee19826b/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 22:30:58,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:30:58,107 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-19 22:30:58,109 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:30:58,158 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:30:58,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-19 22:30:58,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2019-11-19 22:30:58,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185188528] [2019-11-19 22:30:58,159 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-19 22:30:58,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:30:58,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-19 22:30:58,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-19 22:30:58,160 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand 8 states. [2019-11-19 22:30:58,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:30:58,376 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2019-11-19 22:30:58,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-19 22:30:58,377 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2019-11-19 22:30:58,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:30:58,378 INFO L225 Difference]: With dead ends: 48 [2019-11-19 22:30:58,378 INFO L226 Difference]: Without dead ends: 47 [2019-11-19 22:30:58,379 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2019-11-19 22:30:58,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-11-19 22:30:58,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 31. [2019-11-19 22:30:58,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-19 22:30:58,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2019-11-19 22:30:58,387 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 39 transitions. Word has length 9 [2019-11-19 22:30:58,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:30:58,387 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 39 transitions. [2019-11-19 22:30:58,387 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-19 22:30:58,388 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 39 transitions. [2019-11-19 22:30:58,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-19 22:30:58,388 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:30:58,388 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:30:58,589 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 22:30:58,589 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 22:30:58,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:58,590 INFO L82 PathProgramCache]: Analyzing trace with hash -22254561, now seen corresponding path program 1 times [2019-11-19 22:30:58,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:58,590 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296002596] [2019-11-19 22:30:58,590 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:58,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:30:58,680 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:30:58,680 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296002596] [2019-11-19 22:30:58,680 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15686556] [2019-11-19 22:30:58,681 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a8add4f-c566-4b1a-9d99-2b30ee19826b/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2019-11-19 22:30:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 22:30:58,703 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-19 22:30:58,704 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:30:58,741 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:30:58,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-19 22:30:58,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 7 [2019-11-19 22:30:58,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91626691] [2019-11-19 22:30:58,742 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-19 22:30:58,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:30:58,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 22:30:58,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-19 22:30:58,742 INFO L87 Difference]: Start difference. First operand 31 states and 39 transitions. Second operand 5 states. [2019-11-19 22:30:58,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:30:58,776 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2019-11-19 22:30:58,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 22:30:58,776 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-11-19 22:30:58,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:30:58,777 INFO L225 Difference]: With dead ends: 31 [2019-11-19 22:30:58,777 INFO L226 Difference]: Without dead ends: 30 [2019-11-19 22:30:58,778 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-11-19 22:30:58,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-19 22:30:58,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 22. [2019-11-19 22:30:58,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-19 22:30:58,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2019-11-19 22:30:58,783 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 9 [2019-11-19 22:30:58,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:30:58,784 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2019-11-19 22:30:58,784 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-19 22:30:58,784 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2019-11-19 22:30:58,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-19 22:30:58,785 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:30:58,785 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2019-11-19 22:30:58,985 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 22:30:58,986 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 22:30:58,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:58,986 INFO L82 PathProgramCache]: Analyzing trace with hash -22254369, now seen corresponding path program 1 times [2019-11-19 22:30:58,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:58,987 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829489083] [2019-11-19 22:30:58,987 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:58,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:30:59,019 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:30:59,019 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829489083] [2019-11-19 22:30:59,020 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671790481] [2019-11-19 22:30:59,020 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a8add4f-c566-4b1a-9d99-2b30ee19826b/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 22:30:59,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:30:59,044 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-19 22:30:59,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:30:59,082 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:30:59,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-19 22:30:59,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2019-11-19 22:30:59,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851507823] [2019-11-19 22:30:59,083 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-19 22:30:59,083 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:30:59,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 22:30:59,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-19 22:30:59,084 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand 5 states. [2019-11-19 22:30:59,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:30:59,157 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2019-11-19 22:30:59,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 22:30:59,158 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-11-19 22:30:59,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:30:59,158 INFO L225 Difference]: With dead ends: 43 [2019-11-19 22:30:59,158 INFO L226 Difference]: Without dead ends: 42 [2019-11-19 22:30:59,159 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-19 22:30:59,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-11-19 22:30:59,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 20. [2019-11-19 22:30:59,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-19 22:30:59,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2019-11-19 22:30:59,163 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 9 [2019-11-19 22:30:59,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:30:59,163 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2019-11-19 22:30:59,163 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-19 22:30:59,164 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2019-11-19 22:30:59,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-19 22:30:59,164 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:30:59,164 INFO L410 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2019-11-19 22:30:59,365 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 22:30:59,365 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 22:30:59,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:59,366 INFO L82 PathProgramCache]: Analyzing trace with hash -573512235, now seen corresponding path program 1 times [2019-11-19 22:30:59,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:59,366 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615788448] [2019-11-19 22:30:59,366 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:59,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:30:59,455 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:30:59,455 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615788448] [2019-11-19 22:30:59,455 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620927003] [2019-11-19 22:30:59,455 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a8add4f-c566-4b1a-9d99-2b30ee19826b/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 22:30:59,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:30:59,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-19 22:30:59,496 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:30:59,561 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:30:59,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-19 22:30:59,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2019-11-19 22:30:59,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328822807] [2019-11-19 22:30:59,562 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-19 22:30:59,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:30:59,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-19 22:30:59,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2019-11-19 22:30:59,563 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand 10 states. [2019-11-19 22:30:59,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:30:59,892 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2019-11-19 22:30:59,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-19 22:30:59,893 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2019-11-19 22:30:59,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:30:59,893 INFO L225 Difference]: With dead ends: 35 [2019-11-19 22:30:59,893 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 22:30:59,894 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=283, Unknown=0, NotChecked=0, Total=420 [2019-11-19 22:30:59,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 22:30:59,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 22:30:59,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 22:30:59,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 22:30:59,894 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-11-19 22:30:59,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:30:59,895 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 22:30:59,895 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-19 22:30:59,895 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 22:30:59,895 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 22:31:00,095 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 22:31:00,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-19 22:31:00,248 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2019-11-19 22:31:00,248 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-19 22:31:00,248 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2019-11-19 22:31:00,248 INFO L440 ceAbstractionStarter]: At program point L29(lines 16 30) the Hoare annotation is: (<= ULTIMATE.start_main_~y1~0 2147483647) [2019-11-19 22:31:00,248 INFO L444 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2019-11-19 22:31:00,248 INFO L444 ceAbstractionStarter]: For program point L25-1(line 25) no Hoare annotation was computed. [2019-11-19 22:31:00,249 INFO L444 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2019-11-19 22:31:00,249 INFO L444 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2019-11-19 22:31:00,249 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2019-11-19 22:31:00,249 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2019-11-19 22:31:00,249 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-19 22:31:00,249 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-19 22:31:00,250 INFO L444 ceAbstractionStarter]: For program point L22(lines 22 26) no Hoare annotation was computed. [2019-11-19 22:31:00,250 INFO L444 ceAbstractionStarter]: For program point L20(lines 20 28) no Hoare annotation was computed. [2019-11-19 22:31:00,250 INFO L440 ceAbstractionStarter]: At program point L22-2(lines 21 27) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~y1~0) (<= ULTIMATE.start_main_~y1~0 2147483647) (<= ULTIMATE.start_main_~y2~0 2147483647) (<= 0 ULTIMATE.start_main_~y2~0)) [2019-11-19 22:31:00,250 INFO L444 ceAbstractionStarter]: For program point L20-1(lines 20 28) no Hoare annotation was computed. [2019-11-19 22:31:00,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:31:00 BoogieIcfgContainer [2019-11-19 22:31:00,264 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 22:31:00,265 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:31:00,265 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:31:00,265 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:31:00,266 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:30:56" (3/4) ... [2019-11-19 22:31:00,269 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 22:31:00,285 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-19 22:31:00,285 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-19 22:31:00,322 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8a8add4f-c566-4b1a-9d99-2b30ee19826b/bin/uautomizer/witness.graphml [2019-11-19 22:31:00,322 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:31:00,324 INFO L168 Benchmark]: Toolchain (without parser) took 4017.75 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 944.8 MB in the beginning and 854.4 MB in the end (delta: 90.4 MB). Peak memory consumption was 187.9 MB. Max. memory is 11.5 GB. [2019-11-19 22:31:00,325 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:31:00,325 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -155.4 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. [2019-11-19 22:31:00,326 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-19 22:31:00,327 INFO L168 Benchmark]: Boogie Preprocessor took 20.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:31:00,327 INFO L168 Benchmark]: RCFGBuilder took 271.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-19 22:31:00,328 INFO L168 Benchmark]: TraceAbstraction took 3285.08 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 854.4 MB in the end (delta: 219.5 MB). Peak memory consumption was 219.5 MB. Max. memory is 11.5 GB. [2019-11-19 22:31:00,328 INFO L168 Benchmark]: Witness Printer took 57.52 ms. Allocated memory is still 1.1 GB. Free memory is still 854.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:31:00,331 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 335.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -155.4 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 271.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3285.08 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 854.4 MB in the end (delta: 219.5 MB). Peak memory consumption was 219.5 MB. Max. memory is 11.5 GB. * Witness Printer took 57.52 ms. Allocated memory is still 1.1 GB. Free memory is still 854.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: 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: 16]: Loop Invariant Derived loop invariant: y1 <= 2147483647 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: ((0 <= y1 && y1 <= 2147483647) && y2 <= 2147483647) && 0 <= y2 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 4 error locations. Result: SAFE, OverallTime: 3.2s, OverallIterations: 7, TraceHistogramMax: 4, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 14 SDtfs, 140 SDslu, 3 SDs, 0 SdLazy, 379 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 60 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 9 NumberOfFragments, 16 HoareAnnotationTreeSize, 2 FomulaSimplifications, 258 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 158 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 6328 SizeOfPredicates, 0 NumberOfNonLiveVariables, 117 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 13/50 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...