./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/McCarthy91_Recursion.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_0d3e3fcb-85b0-4b40-8315-faeb7919255f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0d3e3fcb-85b0-4b40-8315-faeb7919255f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0d3e3fcb-85b0-4b40-8315-faeb7919255f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0d3e3fcb-85b0-4b40-8315-faeb7919255f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/McCarthy91_Recursion.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0d3e3fcb-85b0-4b40-8315-faeb7919255f/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0d3e3fcb-85b0-4b40-8315-faeb7919255f/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 871be16186d4378aec884efd2352a47ca4eb57bc ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 02:45:31,426 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 02:45:31,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 02:45:31,438 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 02:45:31,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 02:45:31,440 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 02:45:31,441 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 02:45:31,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 02:45:31,445 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 02:45:31,446 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 02:45:31,447 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 02:45:31,448 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 02:45:31,448 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 02:45:31,449 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 02:45:31,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 02:45:31,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 02:45:31,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 02:45:31,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 02:45:31,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 02:45:31,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 02:45:31,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 02:45:31,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 02:45:31,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 02:45:31,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 02:45:31,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 02:45:31,469 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 02:45:31,469 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 02:45:31,475 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 02:45:31,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 02:45:31,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 02:45:31,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 02:45:31,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 02:45:31,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 02:45:31,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 02:45:31,483 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 02:45:31,484 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 02:45:31,484 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 02:45:31,484 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 02:45:31,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 02:45:31,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 02:45:31,489 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 02:45:31,489 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0d3e3fcb-85b0-4b40-8315-faeb7919255f/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-20 02:45:31,506 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 02:45:31,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 02:45:31,508 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 02:45:31,508 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 02:45:31,508 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 02:45:31,509 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 02:45:31,509 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 02:45:31,509 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 02:45:31,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 02:45:31,509 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 02:45:31,510 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 02:45:31,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 02:45:31,511 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-20 02:45:31,511 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 02:45:31,511 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 02:45:31,512 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 02:45:31,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 02:45:31,512 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 02:45:31,512 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 02:45:31,512 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 02:45:31,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 02:45:31,513 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 02:45:31,513 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 02:45:31,513 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 02:45:31,514 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 02:45:31,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 02:45:31,514 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 02:45:31,514 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_0d3e3fcb-85b0-4b40-8315-faeb7919255f/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 -> 871be16186d4378aec884efd2352a47ca4eb57bc [2019-11-20 02:45:31,669 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 02:45:31,681 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 02:45:31,684 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 02:45:31,685 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 02:45:31,685 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 02:45:31,686 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0d3e3fcb-85b0-4b40-8315-faeb7919255f/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/McCarthy91_Recursion.c [2019-11-20 02:45:31,746 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0d3e3fcb-85b0-4b40-8315-faeb7919255f/bin/uautomizer/data/9c0c3d4b8/940c347869b24e8384344b43742237e4/FLAG9da1abedf [2019-11-20 02:45:32,092 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 02:45:32,092 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0d3e3fcb-85b0-4b40-8315-faeb7919255f/sv-benchmarks/c/termination-crafted/McCarthy91_Recursion.c [2019-11-20 02:45:32,099 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0d3e3fcb-85b0-4b40-8315-faeb7919255f/bin/uautomizer/data/9c0c3d4b8/940c347869b24e8384344b43742237e4/FLAG9da1abedf [2019-11-20 02:45:32,464 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0d3e3fcb-85b0-4b40-8315-faeb7919255f/bin/uautomizer/data/9c0c3d4b8/940c347869b24e8384344b43742237e4 [2019-11-20 02:45:32,467 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 02:45:32,468 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 02:45:32,469 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 02:45:32,469 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 02:45:32,473 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 02:45:32,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:45:32" (1/1) ... [2019-11-20 02:45:32,476 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d86ac49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:45:32, skipping insertion in model container [2019-11-20 02:45:32,477 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:45:32" (1/1) ... [2019-11-20 02:45:32,484 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 02:45:32,497 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 02:45:32,661 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:45:32,667 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 02:45:32,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:45:32,757 INFO L192 MainTranslator]: Completed translation [2019-11-20 02:45:32,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:45:32 WrapperNode [2019-11-20 02:45:32,758 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 02:45:32,759 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 02:45:32,760 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 02:45:32,760 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 02:45:32,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:45:32" (1/1) ... [2019-11-20 02:45:32,774 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:45:32" (1/1) ... [2019-11-20 02:45:32,791 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 02:45:32,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 02:45:32,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 02:45:32,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 02:45:32,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:45:32" (1/1) ... [2019-11-20 02:45:32,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:45:32" (1/1) ... [2019-11-20 02:45:32,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:45:32" (1/1) ... [2019-11-20 02:45:32,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:45:32" (1/1) ... [2019-11-20 02:45:32,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:45:32" (1/1) ... [2019-11-20 02:45:32,807 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:45:32" (1/1) ... [2019-11-20 02:45:32,808 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:45:32" (1/1) ... [2019-11-20 02:45:32,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 02:45:32,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 02:45:32,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 02:45:32,810 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 02:45:32,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:45:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d3e3fcb-85b0-4b40-8315-faeb7919255f/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 [2019-11-20 02:45:32,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 02:45:32,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 02:45:32,864 INFO L130 BoogieDeclarations]: Found specification of procedure mc91 [2019-11-20 02:45:32,864 INFO L138 BoogieDeclarations]: Found implementation of procedure mc91 [2019-11-20 02:45:33,031 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 02:45:33,031 INFO L285 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-20 02:45:33,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:45:33 BoogieIcfgContainer [2019-11-20 02:45:33,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 02:45:33,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 02:45:33,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 02:45:33,036 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 02:45:33,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 02:45:32" (1/3) ... [2019-11-20 02:45:33,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@549cb711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:45:33, skipping insertion in model container [2019-11-20 02:45:33,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:45:32" (2/3) ... [2019-11-20 02:45:33,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@549cb711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:45:33, skipping insertion in model container [2019-11-20 02:45:33,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:45:33" (3/3) ... [2019-11-20 02:45:33,039 INFO L109 eAbstractionObserver]: Analyzing ICFG McCarthy91_Recursion.c [2019-11-20 02:45:33,048 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 02:45:33,053 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-20 02:45:33,061 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-20 02:45:33,085 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 02:45:33,085 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 02:45:33,086 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 02:45:33,086 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 02:45:33,086 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 02:45:33,086 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 02:45:33,086 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 02:45:33,086 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 02:45:33,100 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-11-20 02:45:33,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 02:45:33,104 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:45:33,105 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-20 02:45:33,105 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 02:45:33,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:45:33,111 INFO L82 PathProgramCache]: Analyzing trace with hash 30304495, now seen corresponding path program 1 times [2019-11-20 02:45:33,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:45:33,119 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399797994] [2019-11-20 02:45:33,119 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:45:33,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:45:33,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:45:33,260 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399797994] [2019-11-20 02:45:33,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:45:33,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 02:45:33,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411582929] [2019-11-20 02:45:33,268 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 02:45:33,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:45:33,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 02:45:33,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 02:45:33,285 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 5 states. [2019-11-20 02:45:33,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:45:33,440 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2019-11-20 02:45:33,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 02:45:33,442 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2019-11-20 02:45:33,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:45:33,451 INFO L225 Difference]: With dead ends: 40 [2019-11-20 02:45:33,451 INFO L226 Difference]: Without dead ends: 32 [2019-11-20 02:45:33,455 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 02:45:33,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-20 02:45:33,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2019-11-20 02:45:33,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-20 02:45:33,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2019-11-20 02:45:33,491 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 33 transitions. Word has length 5 [2019-11-20 02:45:33,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:45:33,492 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 33 transitions. [2019-11-20 02:45:33,492 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 02:45:33,492 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2019-11-20 02:45:33,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 02:45:33,492 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:45:33,492 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-20 02:45:33,493 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 02:45:33,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:45:33,493 INFO L82 PathProgramCache]: Analyzing trace with hash 30304655, now seen corresponding path program 1 times [2019-11-20 02:45:33,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:45:33,494 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621986173] [2019-11-20 02:45:33,494 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:45:33,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:45:33,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:45:33,509 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621986173] [2019-11-20 02:45:33,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:45:33,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 02:45:33,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80513479] [2019-11-20 02:45:33,511 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 02:45:33,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:45:33,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 02:45:33,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 02:45:33,513 INFO L87 Difference]: Start difference. First operand 27 states and 33 transitions. Second operand 3 states. [2019-11-20 02:45:33,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:45:33,556 INFO L93 Difference]: Finished difference Result 29 states and 37 transitions. [2019-11-20 02:45:33,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 02:45:33,557 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-20 02:45:33,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:45:33,558 INFO L225 Difference]: With dead ends: 29 [2019-11-20 02:45:33,558 INFO L226 Difference]: Without dead ends: 28 [2019-11-20 02:45:33,559 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 02:45:33,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-11-20 02:45:33,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2019-11-20 02:45:33,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-20 02:45:33,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2019-11-20 02:45:33,570 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 5 [2019-11-20 02:45:33,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:45:33,571 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2019-11-20 02:45:33,571 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 02:45:33,571 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2019-11-20 02:45:33,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 02:45:33,572 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:45:33,573 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-20 02:45:33,573 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 02:45:33,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:45:33,574 INFO L82 PathProgramCache]: Analyzing trace with hash 939439389, now seen corresponding path program 1 times [2019-11-20 02:45:33,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:45:33,574 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172822786] [2019-11-20 02:45:33,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:45:33,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:45:33,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:45:33,594 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172822786] [2019-11-20 02:45:33,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:45:33,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 02:45:33,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31341319] [2019-11-20 02:45:33,595 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 02:45:33,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:45:33,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 02:45:33,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 02:45:33,596 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand 3 states. [2019-11-20 02:45:33,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:45:33,620 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2019-11-20 02:45:33,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 02:45:33,621 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-20 02:45:33,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:45:33,622 INFO L225 Difference]: With dead ends: 28 [2019-11-20 02:45:33,622 INFO L226 Difference]: Without dead ends: 25 [2019-11-20 02:45:33,623 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 02:45:33,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-20 02:45:33,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2019-11-20 02:45:33,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-20 02:45:33,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2019-11-20 02:45:33,630 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 6 [2019-11-20 02:45:33,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:45:33,630 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2019-11-20 02:45:33,631 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 02:45:33,631 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2019-11-20 02:45:33,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 02:45:33,631 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:45:33,631 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-20 02:45:33,632 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 02:45:33,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:45:33,632 INFO L82 PathProgramCache]: Analyzing trace with hash 939444354, now seen corresponding path program 1 times [2019-11-20 02:45:33,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:45:33,633 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799617186] [2019-11-20 02:45:33,633 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:45:33,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:45:33,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:45:33,677 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799617186] [2019-11-20 02:45:33,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:45:33,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 02:45:33,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643393147] [2019-11-20 02:45:33,678 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 02:45:33,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:45:33,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 02:45:33,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 02:45:33,679 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 5 states. [2019-11-20 02:45:33,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:45:33,755 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions. [2019-11-20 02:45:33,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 02:45:33,756 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2019-11-20 02:45:33,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:45:33,757 INFO L225 Difference]: With dead ends: 39 [2019-11-20 02:45:33,757 INFO L226 Difference]: Without dead ends: 38 [2019-11-20 02:45:33,758 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 02:45:33,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-11-20 02:45:33,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2019-11-20 02:45:33,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-20 02:45:33,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2019-11-20 02:45:33,767 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 6 [2019-11-20 02:45:33,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:45:33,767 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2019-11-20 02:45:33,768 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 02:45:33,768 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2019-11-20 02:45:33,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 02:45:33,768 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:45:33,768 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:45:33,769 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 02:45:33,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:45:33,769 INFO L82 PathProgramCache]: Analyzing trace with hash 312291472, now seen corresponding path program 1 times [2019-11-20 02:45:33,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:45:33,770 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701597673] [2019-11-20 02:45:33,770 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:45:33,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:45:33,803 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:45:33,803 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701597673] [2019-11-20 02:45:33,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:45:33,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 02:45:33,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586823038] [2019-11-20 02:45:33,804 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 02:45:33,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:45:33,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 02:45:33,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-20 02:45:33,805 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand 5 states. [2019-11-20 02:45:33,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:45:33,904 INFO L93 Difference]: Finished difference Result 55 states and 67 transitions. [2019-11-20 02:45:33,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 02:45:33,905 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-11-20 02:45:33,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:45:33,906 INFO L225 Difference]: With dead ends: 55 [2019-11-20 02:45:33,906 INFO L226 Difference]: Without dead ends: 54 [2019-11-20 02:45:33,907 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-20 02:45:33,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-11-20 02:45:33,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 47. [2019-11-20 02:45:33,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-11-20 02:45:33,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 55 transitions. [2019-11-20 02:45:33,924 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 55 transitions. Word has length 10 [2019-11-20 02:45:33,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:45:33,924 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 55 transitions. [2019-11-20 02:45:33,924 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 02:45:33,925 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 55 transitions. [2019-11-20 02:45:33,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-20 02:45:33,925 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:45:33,926 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:45:33,926 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 02:45:33,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:45:33,927 INFO L82 PathProgramCache]: Analyzing trace with hash -904725729, now seen corresponding path program 1 times [2019-11-20 02:45:33,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:45:33,927 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856644855] [2019-11-20 02:45:33,927 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:45:33,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:45:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:45:34,035 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 02:45:34,035 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856644855] [2019-11-20 02:45:34,035 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520821527] [2019-11-20 02:45:34,036 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d3e3fcb-85b0-4b40-8315-faeb7919255f/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 [2019-11-20 02:45:34,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:45:34,069 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 02:45:34,074 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:45:34,202 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:45:34,203 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 02:45:34,203 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 14 [2019-11-20 02:45:34,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158283782] [2019-11-20 02:45:34,204 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-20 02:45:34,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:45:34,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-20 02:45:34,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2019-11-20 02:45:34,205 INFO L87 Difference]: Start difference. First operand 47 states and 55 transitions. Second operand 15 states. [2019-11-20 02:45:34,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:45:34,578 INFO L93 Difference]: Finished difference Result 70 states and 89 transitions. [2019-11-20 02:45:34,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-20 02:45:34,578 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 18 [2019-11-20 02:45:34,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:45:34,580 INFO L225 Difference]: With dead ends: 70 [2019-11-20 02:45:34,580 INFO L226 Difference]: Without dead ends: 69 [2019-11-20 02:45:34,581 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2019-11-20 02:45:34,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-11-20 02:45:34,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 46. [2019-11-20 02:45:34,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-11-20 02:45:34,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2019-11-20 02:45:34,607 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 54 transitions. Word has length 18 [2019-11-20 02:45:34,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:45:34,608 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 54 transitions. [2019-11-20 02:45:34,608 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-20 02:45:34,608 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2019-11-20 02:45:34,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-20 02:45:34,609 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:45:34,609 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:45:34,821 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 02:45:34,821 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 02:45:34,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:45:34,821 INFO L82 PathProgramCache]: Analyzing trace with hash 2018278482, now seen corresponding path program 1 times [2019-11-20 02:45:34,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:45:34,822 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845273364] [2019-11-20 02:45:34,822 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:45:34,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:45:34,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:45:34,886 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 02:45:34,887 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845273364] [2019-11-20 02:45:34,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:45:34,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 02:45:34,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685235499] [2019-11-20 02:45:34,888 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 02:45:34,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:45:34,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 02:45:34,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-20 02:45:34,888 INFO L87 Difference]: Start difference. First operand 46 states and 54 transitions. Second operand 7 states. [2019-11-20 02:45:35,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:45:35,056 INFO L93 Difference]: Finished difference Result 98 states and 127 transitions. [2019-11-20 02:45:35,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-20 02:45:35,057 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2019-11-20 02:45:35,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:45:35,058 INFO L225 Difference]: With dead ends: 98 [2019-11-20 02:45:35,058 INFO L226 Difference]: Without dead ends: 97 [2019-11-20 02:45:35,059 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-11-20 02:45:35,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-11-20 02:45:35,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 88. [2019-11-20 02:45:35,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-11-20 02:45:35,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 108 transitions. [2019-11-20 02:45:35,080 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 108 transitions. Word has length 19 [2019-11-20 02:45:35,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:45:35,081 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 108 transitions. [2019-11-20 02:45:35,081 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 02:45:35,081 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 108 transitions. [2019-11-20 02:45:35,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-11-20 02:45:35,083 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:45:35,084 INFO L410 BasicCegarLoop]: trace histogram [7, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2019-11-20 02:45:35,084 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 02:45:35,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:45:35,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1310326519, now seen corresponding path program 1 times [2019-11-20 02:45:35,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:45:35,085 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752878552] [2019-11-20 02:45:35,085 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:45:35,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:45:35,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:45:35,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:45:35,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:45:35,214 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-11-20 02:45:35,214 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752878552] [2019-11-20 02:45:35,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:45:35,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 02:45:35,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334235318] [2019-11-20 02:45:35,216 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 02:45:35,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:45:35,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 02:45:35,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-20 02:45:35,216 INFO L87 Difference]: Start difference. First operand 88 states and 108 transitions. Second operand 8 states. [2019-11-20 02:45:35,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:45:35,396 INFO L93 Difference]: Finished difference Result 92 states and 120 transitions. [2019-11-20 02:45:35,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-20 02:45:35,396 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2019-11-20 02:45:35,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:45:35,397 INFO L225 Difference]: With dead ends: 92 [2019-11-20 02:45:35,397 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 02:45:35,399 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2019-11-20 02:45:35,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 02:45:35,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 02:45:35,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 02:45:35,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 02:45:35,400 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2019-11-20 02:45:35,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:45:35,401 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 02:45:35,401 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 02:45:35,401 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 02:45:35,401 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 02:45:35,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 02:45:35,688 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 24 [2019-11-20 02:45:35,796 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 27 [2019-11-20 02:45:35,801 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 02:45:35,802 INFO L440 ceAbstractionStarter]: At program point L16(line 16) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648))) [2019-11-20 02:45:35,802 INFO L444 ceAbstractionStarter]: For program point L16-1(line 16) no Hoare annotation was computed. [2019-11-20 02:45:35,802 INFO L444 ceAbstractionStarter]: For program point L14(lines 14 17) no Hoare annotation was computed. [2019-11-20 02:45:35,802 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 02:45:35,802 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 02:45:35,802 INFO L444 ceAbstractionStarter]: For program point mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2019-11-20 02:45:35,803 INFO L444 ceAbstractionStarter]: For program point mc91FINAL(lines 8 12) no Hoare annotation was computed. [2019-11-20 02:45:35,803 INFO L444 ceAbstractionStarter]: For program point mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2019-11-20 02:45:35,803 INFO L444 ceAbstractionStarter]: For program point mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2019-11-20 02:45:35,803 INFO L444 ceAbstractionStarter]: For program point mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2019-11-20 02:45:35,803 INFO L444 ceAbstractionStarter]: For program point L11(line 11) no Hoare annotation was computed. [2019-11-20 02:45:35,803 INFO L444 ceAbstractionStarter]: For program point L10(lines 10 11) no Hoare annotation was computed. [2019-11-20 02:45:35,803 INFO L444 ceAbstractionStarter]: For program point L11-1(line 11) no Hoare annotation was computed. [2019-11-20 02:45:35,803 INFO L444 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2019-11-20 02:45:35,804 INFO L440 ceAbstractionStarter]: At program point L11-2(line 11) the Hoare annotation is: (let ((.cse0 (= mc91_~n |mc91_#in~n|))) (and (or (not (<= |mc91_#in~n| 2147483648)) (not (<= 91 |mc91_#in~n|)) (and (<= mc91_~n 2147483647) .cse0)) (or (and (<= mc91_~n 100) .cse0) (not (<= |mc91_#in~n| 2147483647)) (not (<= 0 (+ |mc91_#in~n| 2147483648)))))) [2019-11-20 02:45:35,804 INFO L444 ceAbstractionStarter]: For program point L10-2(line 10) no Hoare annotation was computed. [2019-11-20 02:45:35,804 INFO L444 ceAbstractionStarter]: For program point L11-3(line 11) no Hoare annotation was computed. [2019-11-20 02:45:35,804 INFO L440 ceAbstractionStarter]: At program point L11-4(line 11) the Hoare annotation is: (let ((.cse0 (= mc91_~n |mc91_#in~n|))) (and (or (not (<= |mc91_#in~n| 2147483647)) (not (<= 0 (+ |mc91_#in~n| 2147483648))) (and (<= 91 |mc91_#t~ret0|) (and (<= |mc91_#t~ret0| 2147483648) .cse0))) (or (not (<= |mc91_#in~n| 2147483648)) (not (<= 91 |mc91_#in~n|)) (and (<= mc91_~n 100) .cse0)))) [2019-11-20 02:45:35,804 INFO L447 ceAbstractionStarter]: At program point mc91ENTRY(lines 8 12) the Hoare annotation is: true [2019-11-20 02:45:35,804 INFO L444 ceAbstractionStarter]: For program point L11-5(line 11) no Hoare annotation was computed. [2019-11-20 02:45:35,805 INFO L444 ceAbstractionStarter]: For program point mc91EXIT(lines 8 12) no Hoare annotation was computed. [2019-11-20 02:45:35,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 02:45:35 BoogieIcfgContainer [2019-11-20 02:45:35,811 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 02:45:35,811 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 02:45:35,812 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 02:45:35,812 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 02:45:35,812 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:45:33" (3/4) ... [2019-11-20 02:45:35,815 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 02:45:35,831 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure mc91 [2019-11-20 02:45:35,840 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-20 02:45:35,840 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 02:45:35,897 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0d3e3fcb-85b0-4b40-8315-faeb7919255f/bin/uautomizer/witness.graphml [2019-11-20 02:45:35,897 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 02:45:35,899 INFO L168 Benchmark]: Toolchain (without parser) took 3430.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 944.7 MB in the beginning and 862.4 MB in the end (delta: 82.3 MB). Peak memory consumption was 234.9 MB. Max. memory is 11.5 GB. [2019-11-20 02:45:35,899 INFO L168 Benchmark]: CDTParser took 0.18 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. [2019-11-20 02:45:35,905 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -200.7 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-20 02:45:35,905 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:45:35,906 INFO L168 Benchmark]: Boogie Preprocessor took 18.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:45:35,908 INFO L168 Benchmark]: RCFGBuilder took 222.32 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: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2019-11-20 02:45:35,908 INFO L168 Benchmark]: TraceAbstraction took 2777.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 869.2 MB in the end (delta: 258.3 MB). Peak memory consumption was 258.3 MB. Max. memory is 11.5 GB. [2019-11-20 02:45:35,909 INFO L168 Benchmark]: Witness Printer took 85.54 ms. Allocated memory is still 1.2 GB. Free memory was 869.2 MB in the beginning and 862.4 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-20 02:45:35,911 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 289.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -200.7 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 222.32 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: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2777.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 869.2 MB in the end (delta: 258.3 MB). Peak memory consumption was 258.3 MB. Max. memory is 11.5 GB. * Witness Printer took 85.54 ms. Allocated memory is still 1.2 GB. Free memory was 869.2 MB in the beginning and 862.4 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 10]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 4 error locations. Result: SAFE, OverallTime: 2.7s, OverallIterations: 8, TraceHistogramMax: 7, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, HoareTripleCheckerStatistics: 125 SDtfs, 213 SDslu, 226 SDs, 0 SdLazy, 403 SolverSat, 103 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=88occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 51 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 58 PreInvPairs, 58 NumberOfFragments, 84 HoareAnnotationTreeSize, 58 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 4 FomulaSimplificationsInter, 309 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 123 ConstructedInterpolants, 0 QuantifiedInterpolants, 5895 SizeOfPredicates, 4 NumberOfNonLiveVariables, 39 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 94/102 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...