./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/MutualRecursion_1b_true-no-overflow_true-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fe60030e-33ee-4453-a29b-0fd77e0a9662/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fe60030e-33ee-4453-a29b-0fd77e0a9662/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fe60030e-33ee-4453-a29b-0fd77e0a9662/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fe60030e-33ee-4453-a29b-0fd77e0a9662/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/MutualRecursion_1b_true-no-overflow_true-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fe60030e-33ee-4453-a29b-0fd77e0a9662/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fe60030e-33ee-4453-a29b-0fd77e0a9662/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9072a9376e1e28de1ef4dc11b7134f6f175023b7 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 11:27:20,961 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 11:27:20,962 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 11:27:20,970 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 11:27:20,970 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 11:27:20,970 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 11:27:20,971 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 11:27:20,972 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 11:27:20,973 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 11:27:20,974 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 11:27:20,974 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 11:27:20,975 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 11:27:20,975 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 11:27:20,976 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 11:27:20,977 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 11:27:20,977 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 11:27:20,978 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 11:27:20,979 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 11:27:20,980 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 11:27:20,981 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 11:27:20,982 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 11:27:20,983 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 11:27:20,984 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 11:27:20,984 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 11:27:20,985 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 11:27:20,985 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 11:27:20,986 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 11:27:20,986 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 11:27:20,987 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 11:27:20,988 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 11:27:20,988 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 11:27:20,988 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 11:27:20,989 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 11:27:20,989 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 11:27:20,989 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 11:27:20,990 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 11:27:20,990 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fe60030e-33ee-4453-a29b-0fd77e0a9662/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-28 11:27:20,999 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 11:27:21,000 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 11:27:21,000 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 11:27:21,000 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 11:27:21,000 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 11:27:21,001 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 11:27:21,001 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 11:27:21,001 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 11:27:21,001 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 11:27:21,001 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 11:27:21,001 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 11:27:21,001 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 11:27:21,001 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 11:27:21,001 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 11:27:21,002 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-28 11:27:21,002 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 11:27:21,002 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 11:27:21,002 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 11:27:21,002 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 11:27:21,002 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 11:27:21,002 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 11:27:21,002 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 11:27:21,002 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 11:27:21,002 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 11:27:21,003 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 11:27:21,003 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 11:27:21,003 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 11:27:21,003 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 11:27:21,003 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 11:27:21,003 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_fe60030e-33ee-4453-a29b-0fd77e0a9662/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9072a9376e1e28de1ef4dc11b7134f6f175023b7 [2018-11-28 11:27:21,026 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 11:27:21,034 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 11:27:21,036 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 11:27:21,037 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 11:27:21,037 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 11:27:21,038 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fe60030e-33ee-4453-a29b-0fd77e0a9662/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted/MutualRecursion_1b_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-28 11:27:21,074 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fe60030e-33ee-4453-a29b-0fd77e0a9662/bin-2019/uautomizer/data/79cea4ef5/e9d7dcc07795482cbb913bbe24767739/FLAG0f4b64482 [2018-11-28 11:27:21,458 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 11:27:21,459 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fe60030e-33ee-4453-a29b-0fd77e0a9662/sv-benchmarks/c/termination-crafted/MutualRecursion_1b_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-28 11:27:21,462 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fe60030e-33ee-4453-a29b-0fd77e0a9662/bin-2019/uautomizer/data/79cea4ef5/e9d7dcc07795482cbb913bbe24767739/FLAG0f4b64482 [2018-11-28 11:27:21,470 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fe60030e-33ee-4453-a29b-0fd77e0a9662/bin-2019/uautomizer/data/79cea4ef5/e9d7dcc07795482cbb913bbe24767739 [2018-11-28 11:27:21,472 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 11:27:21,473 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 11:27:21,474 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 11:27:21,474 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 11:27:21,477 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 11:27:21,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:27:21" (1/1) ... [2018-11-28 11:27:21,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44070218 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:21, skipping insertion in model container [2018-11-28 11:27:21,479 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:27:21" (1/1) ... [2018-11-28 11:27:21,484 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 11:27:21,494 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 11:27:21,583 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:27:21,586 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 11:27:21,595 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:27:21,603 INFO L195 MainTranslator]: Completed translation [2018-11-28 11:27:21,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:21 WrapperNode [2018-11-28 11:27:21,603 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 11:27:21,604 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 11:27:21,604 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 11:27:21,604 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 11:27:21,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:21" (1/1) ... [2018-11-28 11:27:21,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:21" (1/1) ... [2018-11-28 11:27:21,616 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 11:27:21,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 11:27:21,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 11:27:21,617 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 11:27:21,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:21" (1/1) ... [2018-11-28 11:27:21,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:21" (1/1) ... [2018-11-28 11:27:21,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:21" (1/1) ... [2018-11-28 11:27:21,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:21" (1/1) ... [2018-11-28 11:27:21,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:21" (1/1) ... [2018-11-28 11:27:21,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:21" (1/1) ... [2018-11-28 11:27:21,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:21" (1/1) ... [2018-11-28 11:27:21,627 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 11:27:21,628 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 11:27:21,628 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 11:27:21,628 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 11:27:21,628 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fe60030e-33ee-4453-a29b-0fd77e0a9662/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 11:27:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 11:27:21,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 11:27:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-11-28 11:27:21,698 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-11-28 11:27:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure g [2018-11-28 11:27:21,698 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2018-11-28 11:27:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 11:27:21,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 11:27:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 11:27:21,699 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 11:27:21,836 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 11:27:21,836 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 11:27:21,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:27:21 BoogieIcfgContainer [2018-11-28 11:27:21,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 11:27:21,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 11:27:21,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 11:27:21,840 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 11:27:21,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:27:21" (1/3) ... [2018-11-28 11:27:21,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c3d235a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:27:21, skipping insertion in model container [2018-11-28 11:27:21,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:21" (2/3) ... [2018-11-28 11:27:21,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c3d235a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:27:21, skipping insertion in model container [2018-11-28 11:27:21,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:27:21" (3/3) ... [2018-11-28 11:27:21,843 INFO L112 eAbstractionObserver]: Analyzing ICFG MutualRecursion_1b_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-28 11:27:21,851 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 11:27:21,855 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2018-11-28 11:27:21,869 INFO L257 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2018-11-28 11:27:21,895 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 11:27:21,895 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 11:27:21,895 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 11:27:21,895 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 11:27:21,895 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 11:27:21,896 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 11:27:21,896 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 11:27:21,896 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 11:27:21,896 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 11:27:21,912 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-11-28 11:27:21,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 11:27:21,918 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:27:21,919 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:27:21,921 INFO L423 AbstractCegarLoop]: === Iteration 1 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 11:27:21,925 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:27:21,926 INFO L82 PathProgramCache]: Analyzing trace with hash -1878681222, now seen corresponding path program 1 times [2018-11-28 11:27:21,927 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:27:21,928 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:27:21,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:21,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:27:21,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:21,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:27:22,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:27:22,085 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:27:22,085 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 11:27:22,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 11:27:22,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 11:27:22,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 11:27:22,098 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 5 states. [2018-11-28 11:27:22,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:27:22,176 INFO L93 Difference]: Finished difference Result 69 states and 76 transitions. [2018-11-28 11:27:22,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 11:27:22,177 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-28 11:27:22,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:27:22,183 INFO L225 Difference]: With dead ends: 69 [2018-11-28 11:27:22,183 INFO L226 Difference]: Without dead ends: 60 [2018-11-28 11:27:22,185 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 11:27:22,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-11-28 11:27:22,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2018-11-28 11:27:22,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-11-28 11:27:22,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2018-11-28 11:27:22,214 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 9 [2018-11-28 11:27:22,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:27:22,214 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2018-11-28 11:27:22,214 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 11:27:22,215 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2018-11-28 11:27:22,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 11:27:22,215 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:27:22,215 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:27:22,215 INFO L423 AbstractCegarLoop]: === Iteration 2 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 11:27:22,216 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:27:22,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1890424319, now seen corresponding path program 1 times [2018-11-28 11:27:22,216 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:27:22,216 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:27:22,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:22,217 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:27:22,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:22,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:27:22,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:27:22,232 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:27:22,232 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 11:27:22,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 11:27:22,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 11:27:22,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:27:22,234 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand 3 states. [2018-11-28 11:27:22,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:27:22,260 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2018-11-28 11:27:22,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 11:27:22,260 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-28 11:27:22,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:27:22,261 INFO L225 Difference]: With dead ends: 56 [2018-11-28 11:27:22,261 INFO L226 Difference]: Without dead ends: 54 [2018-11-28 11:27:22,261 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:27:22,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-11-28 11:27:22,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2018-11-28 11:27:22,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-11-28 11:27:22,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2018-11-28 11:27:22,266 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 59 transitions. Word has length 10 [2018-11-28 11:27:22,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:27:22,267 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 59 transitions. [2018-11-28 11:27:22,267 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 11:27:22,267 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2018-11-28 11:27:22,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 11:27:22,267 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:27:22,267 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:27:22,268 INFO L423 AbstractCegarLoop]: === Iteration 3 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 11:27:22,268 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:27:22,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1814880932, now seen corresponding path program 1 times [2018-11-28 11:27:22,268 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:27:22,268 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:27:22,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:22,269 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:27:22,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:22,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:27:22,324 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:27:22,324 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:27:22,324 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 11:27:22,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 11:27:22,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 11:27:22,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-28 11:27:22,325 INFO L87 Difference]: Start difference. First operand 52 states and 59 transitions. Second operand 7 states. [2018-11-28 11:27:22,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:27:22,447 INFO L93 Difference]: Finished difference Result 71 states and 81 transitions. [2018-11-28 11:27:22,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 11:27:22,448 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2018-11-28 11:27:22,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:27:22,448 INFO L225 Difference]: With dead ends: 71 [2018-11-28 11:27:22,448 INFO L226 Difference]: Without dead ends: 69 [2018-11-28 11:27:22,449 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-28 11:27:22,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-11-28 11:27:22,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 65. [2018-11-28 11:27:22,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-11-28 11:27:22,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 76 transitions. [2018-11-28 11:27:22,454 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 76 transitions. Word has length 17 [2018-11-28 11:27:22,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:27:22,455 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 76 transitions. [2018-11-28 11:27:22,455 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 11:27:22,455 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 76 transitions. [2018-11-28 11:27:22,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-28 11:27:22,455 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:27:22,455 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:27:22,455 INFO L423 AbstractCegarLoop]: === Iteration 4 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 11:27:22,456 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:27:22,456 INFO L82 PathProgramCache]: Analyzing trace with hash -2069922715, now seen corresponding path program 1 times [2018-11-28 11:27:22,456 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:27:22,456 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:27:22,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:22,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:27:22,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:22,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:27:22,484 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 11:27:22,484 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:27:22,484 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 11:27:22,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 11:27:22,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 11:27:22,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 11:27:22,485 INFO L87 Difference]: Start difference. First operand 65 states and 76 transitions. Second operand 5 states. [2018-11-28 11:27:22,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:27:22,532 INFO L93 Difference]: Finished difference Result 81 states and 100 transitions. [2018-11-28 11:27:22,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 11:27:22,532 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-11-28 11:27:22,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:27:22,533 INFO L225 Difference]: With dead ends: 81 [2018-11-28 11:27:22,533 INFO L226 Difference]: Without dead ends: 80 [2018-11-28 11:27:22,534 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 11:27:22,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-11-28 11:27:22,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 69. [2018-11-28 11:27:22,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-11-28 11:27:22,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 80 transitions. [2018-11-28 11:27:22,540 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 80 transitions. Word has length 20 [2018-11-28 11:27:22,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:27:22,540 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 80 transitions. [2018-11-28 11:27:22,540 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 11:27:22,540 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 80 transitions. [2018-11-28 11:27:22,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 11:27:22,541 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:27:22,541 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:27:22,541 INFO L423 AbstractCegarLoop]: === Iteration 5 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 11:27:22,541 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:27:22,541 INFO L82 PathProgramCache]: Analyzing trace with hash 256905316, now seen corresponding path program 1 times [2018-11-28 11:27:22,542 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:27:22,542 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:27:22,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:22,542 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:27:22,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:22,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:27:22,558 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-28 11:27:22,558 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:27:22,558 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 11:27:22,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 11:27:22,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 11:27:22,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:27:22,559 INFO L87 Difference]: Start difference. First operand 69 states and 80 transitions. Second operand 3 states. [2018-11-28 11:27:22,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:27:22,571 INFO L93 Difference]: Finished difference Result 71 states and 87 transitions. [2018-11-28 11:27:22,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 11:27:22,571 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-11-28 11:27:22,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:27:22,572 INFO L225 Difference]: With dead ends: 71 [2018-11-28 11:27:22,572 INFO L226 Difference]: Without dead ends: 70 [2018-11-28 11:27:22,572 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:27:22,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-11-28 11:27:22,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2018-11-28 11:27:22,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-11-28 11:27:22,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 79 transitions. [2018-11-28 11:27:22,579 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 79 transitions. Word has length 21 [2018-11-28 11:27:22,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:27:22,580 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 79 transitions. [2018-11-28 11:27:22,580 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 11:27:22,580 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 79 transitions. [2018-11-28 11:27:22,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 11:27:22,581 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:27:22,581 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:27:22,581 INFO L423 AbstractCegarLoop]: === Iteration 6 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 11:27:22,581 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:27:22,582 INFO L82 PathProgramCache]: Analyzing trace with hash -831628633, now seen corresponding path program 1 times [2018-11-28 11:27:22,582 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:27:22,582 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:27:22,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:22,582 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:27:22,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:22,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:27:22,623 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 11:27:22,623 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:27:22,623 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 11:27:22,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 11:27:22,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 11:27:22,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 11:27:22,624 INFO L87 Difference]: Start difference. First operand 68 states and 79 transitions. Second operand 5 states. [2018-11-28 11:27:22,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:27:22,666 INFO L93 Difference]: Finished difference Result 127 states and 161 transitions. [2018-11-28 11:27:22,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 11:27:22,666 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-11-28 11:27:22,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:27:22,667 INFO L225 Difference]: With dead ends: 127 [2018-11-28 11:27:22,667 INFO L226 Difference]: Without dead ends: 66 [2018-11-28 11:27:22,668 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 11:27:22,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-11-28 11:27:22,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2018-11-28 11:27:22,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-11-28 11:27:22,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 73 transitions. [2018-11-28 11:27:22,675 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 73 transitions. Word has length 25 [2018-11-28 11:27:22,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:27:22,675 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 73 transitions. [2018-11-28 11:27:22,675 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 11:27:22,675 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 73 transitions. [2018-11-28 11:27:22,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 11:27:22,676 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:27:22,676 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:27:22,677 INFO L423 AbstractCegarLoop]: === Iteration 7 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 11:27:22,678 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:27:22,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1630439354, now seen corresponding path program 1 times [2018-11-28 11:27:22,679 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:27:22,679 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:27:22,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:22,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:27:22,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:22,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:27:22,716 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-28 11:27:22,716 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:27:22,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 11:27:22,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 11:27:22,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 11:27:22,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 11:27:22,717 INFO L87 Difference]: Start difference. First operand 64 states and 73 transitions. Second operand 5 states. [2018-11-28 11:27:22,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:27:22,749 INFO L93 Difference]: Finished difference Result 76 states and 92 transitions. [2018-11-28 11:27:22,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 11:27:22,750 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-11-28 11:27:22,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:27:22,751 INFO L225 Difference]: With dead ends: 76 [2018-11-28 11:27:22,751 INFO L226 Difference]: Without dead ends: 75 [2018-11-28 11:27:22,751 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 11:27:22,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-11-28 11:27:22,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72. [2018-11-28 11:27:22,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-11-28 11:27:22,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 86 transitions. [2018-11-28 11:27:22,759 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 86 transitions. Word has length 25 [2018-11-28 11:27:22,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:27:22,759 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 86 transitions. [2018-11-28 11:27:22,759 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 11:27:22,759 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 86 transitions. [2018-11-28 11:27:22,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 11:27:22,760 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:27:22,760 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:27:22,760 INFO L423 AbstractCegarLoop]: === Iteration 8 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 11:27:22,760 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:27:22,760 INFO L82 PathProgramCache]: Analyzing trace with hash -995987509, now seen corresponding path program 1 times [2018-11-28 11:27:22,761 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:27:22,761 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:27:22,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:22,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:27:22,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:27:22,800 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-28 11:27:22,801 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:27:22,801 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 11:27:22,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 11:27:22,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 11:27:22,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 11:27:22,802 INFO L87 Difference]: Start difference. First operand 72 states and 86 transitions. Second operand 5 states. [2018-11-28 11:27:22,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:27:22,832 INFO L93 Difference]: Finished difference Result 79 states and 94 transitions. [2018-11-28 11:27:22,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 11:27:22,832 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2018-11-28 11:27:22,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:27:22,833 INFO L225 Difference]: With dead ends: 79 [2018-11-28 11:27:22,833 INFO L226 Difference]: Without dead ends: 75 [2018-11-28 11:27:22,834 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 11:27:22,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-11-28 11:27:22,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72. [2018-11-28 11:27:22,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-11-28 11:27:22,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 85 transitions. [2018-11-28 11:27:22,840 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 85 transitions. Word has length 26 [2018-11-28 11:27:22,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:27:22,840 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 85 transitions. [2018-11-28 11:27:22,841 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 11:27:22,841 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 85 transitions. [2018-11-28 11:27:22,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-28 11:27:22,841 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:27:22,842 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:27:22,842 INFO L423 AbstractCegarLoop]: === Iteration 9 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 11:27:22,842 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:27:22,843 INFO L82 PathProgramCache]: Analyzing trace with hash -23503209, now seen corresponding path program 1 times [2018-11-28 11:27:22,843 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:27:22,843 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:27:22,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:22,844 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:27:22,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:27:22,882 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-28 11:27:22,882 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 11:27:22,882 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fe60030e-33ee-4453-a29b-0fd77e0a9662/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 11:27:22,892 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:27:22,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:27:22,911 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:27:22,959 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-28 11:27:22,974 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 11:27:22,975 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6] total 9 [2018-11-28 11:27:22,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 11:27:22,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 11:27:22,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-11-28 11:27:22,975 INFO L87 Difference]: Start difference. First operand 72 states and 85 transitions. Second operand 10 states. [2018-11-28 11:27:23,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:27:23,106 INFO L93 Difference]: Finished difference Result 88 states and 103 transitions. [2018-11-28 11:27:23,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 11:27:23,107 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 46 [2018-11-28 11:27:23,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:27:23,108 INFO L225 Difference]: With dead ends: 88 [2018-11-28 11:27:23,108 INFO L226 Difference]: Without dead ends: 86 [2018-11-28 11:27:23,108 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2018-11-28 11:27:23,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-11-28 11:27:23,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 82. [2018-11-28 11:27:23,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-11-28 11:27:23,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 96 transitions. [2018-11-28 11:27:23,114 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 96 transitions. Word has length 46 [2018-11-28 11:27:23,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:27:23,114 INFO L480 AbstractCegarLoop]: Abstraction has 82 states and 96 transitions. [2018-11-28 11:27:23,114 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 11:27:23,114 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 96 transitions. [2018-11-28 11:27:23,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-11-28 11:27:23,116 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:27:23,116 INFO L402 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:27:23,117 INFO L423 AbstractCegarLoop]: === Iteration 10 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 11:27:23,117 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:27:23,117 INFO L82 PathProgramCache]: Analyzing trace with hash -599462307, now seen corresponding path program 1 times [2018-11-28 11:27:23,117 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:27:23,117 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:27:23,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:23,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:27:23,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:23,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:27:23,172 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 1 proven. 29 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2018-11-28 11:27:23,172 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 11:27:23,172 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fe60030e-33ee-4453-a29b-0fd77e0a9662/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 11:27:23,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:27:23,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:27:23,208 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:27:23,219 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 43 proven. 1 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-11-28 11:27:23,236 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 11:27:23,237 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-11-28 11:27:23,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 11:27:23,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 11:27:23,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-28 11:27:23,237 INFO L87 Difference]: Start difference. First operand 82 states and 96 transitions. Second operand 7 states. [2018-11-28 11:27:23,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:27:23,302 INFO L93 Difference]: Finished difference Result 181 states and 227 transitions. [2018-11-28 11:27:23,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 11:27:23,303 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 72 [2018-11-28 11:27:23,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:27:23,304 INFO L225 Difference]: With dead ends: 181 [2018-11-28 11:27:23,304 INFO L226 Difference]: Without dead ends: 106 [2018-11-28 11:27:23,305 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-11-28 11:27:23,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-11-28 11:27:23,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 96. [2018-11-28 11:27:23,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-11-28 11:27:23,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 112 transitions. [2018-11-28 11:27:23,312 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 112 transitions. Word has length 72 [2018-11-28 11:27:23,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:27:23,313 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 112 transitions. [2018-11-28 11:27:23,313 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 11:27:23,313 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 112 transitions. [2018-11-28 11:27:23,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-11-28 11:27:23,314 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:27:23,314 INFO L402 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:27:23,314 INFO L423 AbstractCegarLoop]: === Iteration 11 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 11:27:23,315 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:27:23,315 INFO L82 PathProgramCache]: Analyzing trace with hash 859454554, now seen corresponding path program 2 times [2018-11-28 11:27:23,315 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:27:23,315 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:27:23,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:23,316 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:27:23,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:23,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:27:23,402 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-11-28 11:27:23,403 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 11:27:23,403 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fe60030e-33ee-4453-a29b-0fd77e0a9662/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 11:27:23,415 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 11:27:23,430 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 11:27:23,431 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 11:27:23,433 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:27:23,482 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2018-11-28 11:27:23,502 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 11:27:23,502 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 12 [2018-11-28 11:27:23,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-28 11:27:23,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-28 11:27:23,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2018-11-28 11:27:23,503 INFO L87 Difference]: Start difference. First operand 96 states and 112 transitions. Second operand 13 states. [2018-11-28 11:27:23,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:27:23,579 INFO L93 Difference]: Finished difference Result 128 states and 156 transitions. [2018-11-28 11:27:23,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-28 11:27:23,579 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 64 [2018-11-28 11:27:23,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:27:23,581 INFO L225 Difference]: With dead ends: 128 [2018-11-28 11:27:23,581 INFO L226 Difference]: Without dead ends: 127 [2018-11-28 11:27:23,581 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2018-11-28 11:27:23,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2018-11-28 11:27:23,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 113. [2018-11-28 11:27:23,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-11-28 11:27:23,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 132 transitions. [2018-11-28 11:27:23,591 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 132 transitions. Word has length 64 [2018-11-28 11:27:23,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:27:23,592 INFO L480 AbstractCegarLoop]: Abstraction has 113 states and 132 transitions. [2018-11-28 11:27:23,592 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-28 11:27:23,592 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 132 transitions. [2018-11-28 11:27:23,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-11-28 11:27:23,593 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:27:23,593 INFO L402 BasicCegarLoop]: trace histogram [6, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:27:23,593 INFO L423 AbstractCegarLoop]: === Iteration 12 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 11:27:23,593 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:27:23,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1512424695, now seen corresponding path program 1 times [2018-11-28 11:27:23,593 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:27:23,593 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:27:23,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:23,594 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:27:23,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:23,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:27:23,666 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2018-11-28 11:27:23,666 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 11:27:23,666 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fe60030e-33ee-4453-a29b-0fd77e0a9662/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 11:27:23,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:27:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:27:23,689 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:27:23,727 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2018-11-28 11:27:23,742 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 11:27:23,742 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2018-11-28 11:27:23,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 11:27:23,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 11:27:23,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-11-28 11:27:23,743 INFO L87 Difference]: Start difference. First operand 113 states and 132 transitions. Second operand 10 states. [2018-11-28 11:27:23,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:27:23,798 INFO L93 Difference]: Finished difference Result 123 states and 146 transitions. [2018-11-28 11:27:23,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 11:27:23,798 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 73 [2018-11-28 11:27:23,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:27:23,799 INFO L225 Difference]: With dead ends: 123 [2018-11-28 11:27:23,799 INFO L226 Difference]: Without dead ends: 122 [2018-11-28 11:27:23,799 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-11-28 11:27:23,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-11-28 11:27:23,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 115. [2018-11-28 11:27:23,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-11-28 11:27:23,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 134 transitions. [2018-11-28 11:27:23,807 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 134 transitions. Word has length 73 [2018-11-28 11:27:23,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:27:23,807 INFO L480 AbstractCegarLoop]: Abstraction has 115 states and 134 transitions. [2018-11-28 11:27:23,807 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 11:27:23,807 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 134 transitions. [2018-11-28 11:27:23,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-11-28 11:27:23,809 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:27:23,809 INFO L402 BasicCegarLoop]: trace histogram [13, 10, 9, 8, 8, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:27:23,809 INFO L423 AbstractCegarLoop]: === Iteration 13 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 11:27:23,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:27:23,809 INFO L82 PathProgramCache]: Analyzing trace with hash 249515707, now seen corresponding path program 1 times [2018-11-28 11:27:23,809 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:27:23,810 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:27:23,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:23,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:27:23,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:23,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:27:23,914 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 148 proven. 41 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2018-11-28 11:27:23,915 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 11:27:23,915 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fe60030e-33ee-4453-a29b-0fd77e0a9662/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 11:27:23,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:27:23,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:27:23,955 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:27:24,063 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 228 proven. 112 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2018-11-28 11:27:24,079 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 11:27:24,079 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15] total 16 [2018-11-28 11:27:24,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-28 11:27:24,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-28 11:27:24,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2018-11-28 11:27:24,080 INFO L87 Difference]: Start difference. First operand 115 states and 134 transitions. Second operand 16 states. [2018-11-28 11:27:24,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:27:24,443 INFO L93 Difference]: Finished difference Result 282 states and 362 transitions. [2018-11-28 11:27:24,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-28 11:27:24,444 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 158 [2018-11-28 11:27:24,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:27:24,445 INFO L225 Difference]: With dead ends: 282 [2018-11-28 11:27:24,446 INFO L226 Difference]: Without dead ends: 174 [2018-11-28 11:27:24,447 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=632, Unknown=0, NotChecked=0, Total=756 [2018-11-28 11:27:24,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2018-11-28 11:27:24,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 163. [2018-11-28 11:27:24,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2018-11-28 11:27:24,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 189 transitions. [2018-11-28 11:27:24,458 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 189 transitions. Word has length 158 [2018-11-28 11:27:24,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:27:24,458 INFO L480 AbstractCegarLoop]: Abstraction has 163 states and 189 transitions. [2018-11-28 11:27:24,458 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-28 11:27:24,458 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 189 transitions. [2018-11-28 11:27:24,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2018-11-28 11:27:24,466 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:27:24,466 INFO L402 BasicCegarLoop]: trace histogram [42, 39, 31, 22, 22, 22, 22, 22, 20, 20, 20, 20, 20, 19, 19, 18, 18, 18, 11, 11, 10, 10, 10, 10, 10, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:27:24,466 INFO L423 AbstractCegarLoop]: === Iteration 14 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 11:27:24,467 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:27:24,467 INFO L82 PathProgramCache]: Analyzing trace with hash -2019185811, now seen corresponding path program 1 times [2018-11-28 11:27:24,467 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:27:24,467 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:27:24,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:24,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:27:24,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:24,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:27:24,745 INFO L134 CoverageAnalysis]: Checked inductivity of 6239 backedges. 468 proven. 1171 refuted. 0 times theorem prover too weak. 4600 trivial. 0 not checked. [2018-11-28 11:27:24,745 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 11:27:24,745 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fe60030e-33ee-4453-a29b-0fd77e0a9662/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 11:27:24,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:27:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:27:24,843 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:27:25,034 INFO L134 CoverageAnalysis]: Checked inductivity of 6239 backedges. 3465 proven. 452 refuted. 0 times theorem prover too weak. 2322 trivial. 0 not checked. [2018-11-28 11:27:25,049 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 11:27:25,049 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 21 [2018-11-28 11:27:25,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-28 11:27:25,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-28 11:27:25,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2018-11-28 11:27:25,050 INFO L87 Difference]: Start difference. First operand 163 states and 189 transitions. Second operand 21 states. [2018-11-28 11:27:25,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:27:25,611 INFO L93 Difference]: Finished difference Result 457 states and 598 transitions. [2018-11-28 11:27:25,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-28 11:27:25,612 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 525 [2018-11-28 11:27:25,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:27:25,614 INFO L225 Difference]: With dead ends: 457 [2018-11-28 11:27:25,614 INFO L226 Difference]: Without dead ends: 305 [2018-11-28 11:27:25,615 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 530 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=244, Invalid=1238, Unknown=0, NotChecked=0, Total=1482 [2018-11-28 11:27:25,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2018-11-28 11:27:25,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 257. [2018-11-28 11:27:25,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2018-11-28 11:27:25,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 330 transitions. [2018-11-28 11:27:25,632 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 330 transitions. Word has length 525 [2018-11-28 11:27:25,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:27:25,633 INFO L480 AbstractCegarLoop]: Abstraction has 257 states and 330 transitions. [2018-11-28 11:27:25,633 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-28 11:27:25,633 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 330 transitions. [2018-11-28 11:27:25,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-11-28 11:27:25,635 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:27:25,635 INFO L402 BasicCegarLoop]: trace histogram [14, 14, 11, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:27:25,635 INFO L423 AbstractCegarLoop]: === Iteration 15 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 11:27:25,635 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:27:25,635 INFO L82 PathProgramCache]: Analyzing trace with hash -1590002633, now seen corresponding path program 2 times [2018-11-28 11:27:25,636 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:27:25,636 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:27:25,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:25,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:27:25,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:25,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:27:25,734 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 204 proven. 4 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2018-11-28 11:27:25,734 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 11:27:25,734 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fe60030e-33ee-4453-a29b-0fd77e0a9662/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 11:27:25,745 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 11:27:25,774 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 11:27:25,774 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 11:27:25,779 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:27:25,867 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 4 proven. 192 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2018-11-28 11:27:25,882 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 11:27:25,882 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2018-11-28 11:27:25,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-28 11:27:25,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-28 11:27:25,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2018-11-28 11:27:25,883 INFO L87 Difference]: Start difference. First operand 257 states and 330 transitions. Second operand 13 states. [2018-11-28 11:27:25,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:27:25,931 INFO L93 Difference]: Finished difference Result 257 states and 330 transitions. [2018-11-28 11:27:25,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 11:27:25,931 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 181 [2018-11-28 11:27:25,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:27:25,933 INFO L225 Difference]: With dead ends: 257 [2018-11-28 11:27:25,933 INFO L226 Difference]: Without dead ends: 255 [2018-11-28 11:27:25,933 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2018-11-28 11:27:25,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2018-11-28 11:27:25,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2018-11-28 11:27:25,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2018-11-28 11:27:25,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 321 transitions. [2018-11-28 11:27:25,944 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 321 transitions. Word has length 181 [2018-11-28 11:27:25,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:27:25,945 INFO L480 AbstractCegarLoop]: Abstraction has 255 states and 321 transitions. [2018-11-28 11:27:25,945 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-28 11:27:25,945 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 321 transitions. [2018-11-28 11:27:25,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2018-11-28 11:27:25,946 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:27:25,947 INFO L402 BasicCegarLoop]: trace histogram [22, 20, 16, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:27:25,947 INFO L423 AbstractCegarLoop]: === Iteration 16 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 11:27:25,947 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:27:25,947 INFO L82 PathProgramCache]: Analyzing trace with hash -2130311345, now seen corresponding path program 1 times [2018-11-28 11:27:25,947 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:27:25,947 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:27:25,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:25,948 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:27:25,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:27:26,040 INFO L134 CoverageAnalysis]: Checked inductivity of 1632 backedges. 351 proven. 6 refuted. 0 times theorem prover too weak. 1275 trivial. 0 not checked. [2018-11-28 11:27:26,040 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 11:27:26,041 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fe60030e-33ee-4453-a29b-0fd77e0a9662/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 11:27:26,058 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:27:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:27:26,097 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:27:26,181 INFO L134 CoverageAnalysis]: Checked inductivity of 1632 backedges. 265 proven. 196 refuted. 0 times theorem prover too weak. 1171 trivial. 0 not checked. [2018-11-28 11:27:26,196 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 11:27:26,197 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2018-11-28 11:27:26,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-28 11:27:26,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-28 11:27:26,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2018-11-28 11:27:26,198 INFO L87 Difference]: Start difference. First operand 255 states and 321 transitions. Second operand 13 states. [2018-11-28 11:27:26,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:27:26,233 INFO L93 Difference]: Finished difference Result 255 states and 321 transitions. [2018-11-28 11:27:26,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 11:27:26,234 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 276 [2018-11-28 11:27:26,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:27:26,234 INFO L225 Difference]: With dead ends: 255 [2018-11-28 11:27:26,235 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 11:27:26,235 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2018-11-28 11:27:26,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 11:27:26,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 11:27:26,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 11:27:26,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 11:27:26,236 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 276 [2018-11-28 11:27:26,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:27:26,236 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 11:27:26,236 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-28 11:27:26,236 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 11:27:26,236 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 11:27:26,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 11:27:26,266 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 11:27:26,269 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 11:27:26,279 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 11:27:26,280 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 11:27:26,283 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 11:27:26,284 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 11:27:26,287 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 11:27:26,288 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 11:27:26,293 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 11:27:26,295 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 11:27:26,299 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 11:27:26,300 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 11:27:26,304 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 11:27:26,305 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 11:27:26,635 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 15 [2018-11-28 11:27:26,637 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 11:27:26,637 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 11:27:26,638 INFO L448 ceAbstractionStarter]: For program point fFINAL(lines 11 15) no Hoare annotation was computed. [2018-11-28 11:27:26,638 INFO L444 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: (and (or (and (<= f_~x |f_#in~x|) (<= |f_#in~x| f_~x)) (< 2147483646 |f_#in~x|)) (< 0 |f_#in~x|)) [2018-11-28 11:27:26,638 INFO L448 ceAbstractionStarter]: For program point L13(lines 13 14) no Hoare annotation was computed. [2018-11-28 11:27:26,638 INFO L448 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2018-11-28 11:27:26,638 INFO L448 ceAbstractionStarter]: For program point fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-11-28 11:27:26,638 INFO L448 ceAbstractionStarter]: For program point L14-2(line 14) no Hoare annotation was computed. [2018-11-28 11:27:26,638 INFO L448 ceAbstractionStarter]: For program point L14-3(line 14) no Hoare annotation was computed. [2018-11-28 11:27:26,638 INFO L448 ceAbstractionStarter]: For program point fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-11-28 11:27:26,638 INFO L448 ceAbstractionStarter]: For program point fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-11-28 11:27:26,638 INFO L444 ceAbstractionStarter]: At program point L14-4(line 14) the Hoare annotation is: (or (and (<= f_~x |f_#in~x|) (<= 0 |f_#t~ret0|) (<= |f_#in~x| f_~x) (<= |f_#t~ret0| 0) (<= 1 f_~x)) (< 2147483646 |f_#in~x|)) [2018-11-28 11:27:26,638 INFO L448 ceAbstractionStarter]: For program point L14-5(line 14) no Hoare annotation was computed. [2018-11-28 11:27:26,638 INFO L448 ceAbstractionStarter]: For program point L14-6(line 14) no Hoare annotation was computed. [2018-11-28 11:27:26,639 INFO L448 ceAbstractionStarter]: For program point fEXIT(lines 11 15) no Hoare annotation was computed. [2018-11-28 11:27:26,639 INFO L448 ceAbstractionStarter]: For program point L14-7(line 14) no Hoare annotation was computed. [2018-11-28 11:27:26,639 INFO L448 ceAbstractionStarter]: For program point fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-11-28 11:27:26,639 INFO L451 ceAbstractionStarter]: At program point fENTRY(lines 11 15) the Hoare annotation is: true [2018-11-28 11:27:26,639 INFO L448 ceAbstractionStarter]: For program point gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-28 11:27:26,639 INFO L448 ceAbstractionStarter]: For program point gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-28 11:27:26,639 INFO L448 ceAbstractionStarter]: For program point gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-28 11:27:26,639 INFO L448 ceAbstractionStarter]: For program point gFINAL(lines 17 21) no Hoare annotation was computed. [2018-11-28 11:27:26,639 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-11-28 11:27:26,639 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 20) no Hoare annotation was computed. [2018-11-28 11:27:26,639 INFO L448 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-11-28 11:27:26,639 INFO L444 ceAbstractionStarter]: At program point L20-2(line 20) the Hoare annotation is: (or (and (<= g_~x |g_#in~x|) (<= 1 g_~x) (<= |g_#in~x| g_~x)) (< 2147483647 |g_#in~x|)) [2018-11-28 11:27:26,639 INFO L448 ceAbstractionStarter]: For program point L20-3(line 20) no Hoare annotation was computed. [2018-11-28 11:27:26,639 INFO L448 ceAbstractionStarter]: For program point L20-4(line 20) no Hoare annotation was computed. [2018-11-28 11:27:26,640 INFO L448 ceAbstractionStarter]: For program point L20-5(line 20) no Hoare annotation was computed. [2018-11-28 11:27:26,640 INFO L444 ceAbstractionStarter]: At program point L20-6(line 20) the Hoare annotation is: (or (and (<= g_~x |g_#in~x|) (<= 0 |g_#t~ret2|) (<= 1 g_~x) (<= |g_#in~x| g_~x) (<= |g_#t~ret2| 0)) (< 2147483647 |g_#in~x|)) [2018-11-28 11:27:26,640 INFO L448 ceAbstractionStarter]: For program point L20-7(line 20) no Hoare annotation was computed. [2018-11-28 11:27:26,640 INFO L448 ceAbstractionStarter]: For program point L20-8(line 20) no Hoare annotation was computed. [2018-11-28 11:27:26,640 INFO L448 ceAbstractionStarter]: For program point gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-28 11:27:26,640 INFO L448 ceAbstractionStarter]: For program point L20-9(line 20) no Hoare annotation was computed. [2018-11-28 11:27:26,640 INFO L448 ceAbstractionStarter]: For program point gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-28 11:27:26,640 INFO L448 ceAbstractionStarter]: For program point gEXIT(lines 17 21) no Hoare annotation was computed. [2018-11-28 11:27:26,640 INFO L451 ceAbstractionStarter]: At program point gENTRY(lines 17 21) the Hoare annotation is: true [2018-11-28 11:27:26,640 INFO L448 ceAbstractionStarter]: For program point gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-28 11:27:26,640 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 11:27:26,640 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 11:27:26,640 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 11:27:26,640 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 11:27:26,641 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 24 27) the Hoare annotation is: true [2018-11-28 11:27:26,641 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 24 27) no Hoare annotation was computed. [2018-11-28 11:27:26,641 INFO L444 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: (<= main_~x~0 2147483647) [2018-11-28 11:27:26,641 INFO L448 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2018-11-28 11:27:26,641 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 24 27) no Hoare annotation was computed. [2018-11-28 11:27:26,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:27:26 BoogieIcfgContainer [2018-11-28 11:27:26,645 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 11:27:26,645 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 11:27:26,645 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 11:27:26,645 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 11:27:26,646 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:27:21" (3/4) ... [2018-11-28 11:27:26,649 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 11:27:26,654 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 11:27:26,654 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f [2018-11-28 11:27:26,654 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure g [2018-11-28 11:27:26,654 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 11:27:26,658 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-28 11:27:26,658 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 11:27:26,658 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 11:27:26,691 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fe60030e-33ee-4453-a29b-0fd77e0a9662/bin-2019/uautomizer/witness.graphml [2018-11-28 11:27:26,691 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 11:27:26,692 INFO L168 Benchmark]: Toolchain (without parser) took 5219.21 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 405.3 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -172.1 MB). Peak memory consumption was 233.2 MB. Max. memory is 11.5 GB. [2018-11-28 11:27:26,692 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:27:26,692 INFO L168 Benchmark]: CACSL2BoogieTranslator took 130.16 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 11:27:26,693 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.55 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:27:26,693 INFO L168 Benchmark]: Boogie Preprocessor took 10.78 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:27:26,693 INFO L168 Benchmark]: RCFGBuilder took 209.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 942.6 MB in the beginning and 1.1 GB in the end (delta: -165.4 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-11-28 11:27:26,693 INFO L168 Benchmark]: TraceAbstraction took 4807.55 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 276.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -17.4 MB). Peak memory consumption was 259.4 MB. Max. memory is 11.5 GB. [2018-11-28 11:27:26,694 INFO L168 Benchmark]: Witness Printer took 46.02 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2018-11-28 11:27:26,695 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 130.16 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.55 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.78 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 209.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 942.6 MB in the beginning and 1.1 GB in the end (delta: -165.4 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4807.55 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 276.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -17.4 MB). Peak memory consumption was 259.4 MB. Max. memory is 11.5 GB. * Witness Printer took 46.02 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 47 locations, 10 error locations. SAFE Result, 4.7s OverallTime, 16 OverallIterations, 42 TraceHistogramMax, 1.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 564 SDtfs, 764 SDslu, 2656 SDs, 0 SdLazy, 2072 SolverSat, 306 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1565 GetRequests, 1412 SyntacticMatches, 0 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=257occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 127 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 272 PreInvPairs, 353 NumberOfFragments, 83 HoareAnnotationTreeSize, 272 FomulaSimplifications, 1486 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 11 FomulaSimplificationsInter, 1758 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 2943 NumberOfCodeBlocks, 2943 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 2919 ConstructedInterpolants, 0 QuantifiedInterpolants, 1226845 SizeOfPredicates, 21 NumberOfNonLiveVariables, 2735 ConjunctsInSsa, 121 ConjunctsInUnsatCore, 24 InterpolantComputations, 8 PerfectInterpolantSequences, 16287/18578 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...