./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.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 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_65c9fff4-9c68-4b37-b245-2362f2db0542/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_65c9fff4-9c68-4b37-b245-2362f2db0542/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_65c9fff4-9c68-4b37-b245-2362f2db0542/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_65c9fff4-9c68-4b37-b245-2362f2db0542/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_65c9fff4-9c68-4b37-b245-2362f2db0542/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_65c9fff4-9c68-4b37-b245-2362f2db0542/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 0.1.23-5842f4b [2018-11-18 14:35:07,605 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:35:07,607 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:35:07,615 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:35:07,615 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:35:07,616 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:35:07,617 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:35:07,618 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:35:07,619 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:35:07,619 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:35:07,620 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:35:07,620 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:35:07,621 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:35:07,621 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:35:07,622 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:35:07,623 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:35:07,623 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:35:07,624 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:35:07,625 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:35:07,626 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:35:07,627 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:35:07,628 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:35:07,629 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:35:07,629 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:35:07,629 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:35:07,630 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:35:07,631 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:35:07,631 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:35:07,632 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:35:07,632 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:35:07,632 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:35:07,633 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:35:07,633 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:35:07,633 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:35:07,634 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:35:07,634 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:35:07,634 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_65c9fff4-9c68-4b37-b245-2362f2db0542/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-18 14:35:07,643 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:35:07,643 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:35:07,644 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:35:07,644 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 14:35:07,645 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 14:35:07,645 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 14:35:07,645 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 14:35:07,645 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:35:07,645 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 14:35:07,645 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:35:07,645 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:35:07,646 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:35:07,646 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:35:07,646 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:35:07,646 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-18 14:35:07,646 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:35:07,646 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:35:07,646 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:35:07,646 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:35:07,647 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:35:07,647 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:35:07,647 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:35:07,647 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:35:07,647 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:35:07,647 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:35:07,647 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:35:07,647 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 14:35:07,648 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:35:07,648 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 14:35:07,648 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_65c9fff4-9c68-4b37-b245-2362f2db0542/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 [2018-11-18 14:35:07,672 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:35:07,681 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:35:07,683 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:35:07,684 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:35:07,684 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:35:07,685 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_65c9fff4-9c68-4b37-b245-2362f2db0542/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted/MutualRecursion_1b_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-18 14:35:07,729 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_65c9fff4-9c68-4b37-b245-2362f2db0542/bin-2019/uautomizer/data/fbacedb5b/570d3f52b9c84b2ea587e4e2234d7528/FLAG92d5b54cf [2018-11-18 14:35:08,053 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:35:08,053 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_65c9fff4-9c68-4b37-b245-2362f2db0542/sv-benchmarks/c/termination-crafted/MutualRecursion_1b_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-18 14:35:08,057 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_65c9fff4-9c68-4b37-b245-2362f2db0542/bin-2019/uautomizer/data/fbacedb5b/570d3f52b9c84b2ea587e4e2234d7528/FLAG92d5b54cf [2018-11-18 14:35:08,485 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_65c9fff4-9c68-4b37-b245-2362f2db0542/bin-2019/uautomizer/data/fbacedb5b/570d3f52b9c84b2ea587e4e2234d7528 [2018-11-18 14:35:08,487 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:35:08,488 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 14:35:08,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:35:08,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:35:08,491 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:35:08,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:35:08" (1/1) ... [2018-11-18 14:35:08,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40118b41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:08, skipping insertion in model container [2018-11-18 14:35:08,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:35:08" (1/1) ... [2018-11-18 14:35:08,500 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:35:08,509 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:35:08,605 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:35:08,607 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:35:08,616 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:35:08,623 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:35:08,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:08 WrapperNode [2018-11-18 14:35:08,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:35:08,624 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:35:08,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:35:08,624 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:35:08,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:08" (1/1) ... [2018-11-18 14:35:08,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:08" (1/1) ... [2018-11-18 14:35:08,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:08" (1/1) ... [2018-11-18 14:35:08,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:08" (1/1) ... [2018-11-18 14:35:08,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:08" (1/1) ... [2018-11-18 14:35:08,640 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:08" (1/1) ... [2018-11-18 14:35:08,641 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:08" (1/1) ... [2018-11-18 14:35:08,642 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:35:08,643 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:35:08,643 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:35:08,643 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:35:08,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65c9fff4-9c68-4b37-b245-2362f2db0542/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 [2018-11-18 14:35:08,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:35:08,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:35:08,719 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-11-18 14:35:08,719 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2018-11-18 14:35:08,719 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:35:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 14:35:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-11-18 14:35:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure g [2018-11-18 14:35:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:35:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:35:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:35:08,860 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:35:08,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:35:08 BoogieIcfgContainer [2018-11-18 14:35:08,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:35:08,862 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:35:08,862 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:35:08,864 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:35:08,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:35:08" (1/3) ... [2018-11-18 14:35:08,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79aa888d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:35:08, skipping insertion in model container [2018-11-18 14:35:08,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:08" (2/3) ... [2018-11-18 14:35:08,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79aa888d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:35:08, skipping insertion in model container [2018-11-18 14:35:08,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:35:08" (3/3) ... [2018-11-18 14:35:08,867 INFO L112 eAbstractionObserver]: Analyzing ICFG MutualRecursion_1b_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-18 14:35:08,873 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:35:08,878 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2018-11-18 14:35:08,888 INFO L257 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2018-11-18 14:35:08,909 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:35:08,909 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:35:08,909 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:35:08,909 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:35:08,909 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:35:08,910 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:35:08,910 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:35:08,910 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:35:08,910 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:35:08,927 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-11-18 14:35:08,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 14:35:08,932 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:08,933 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:35:08,937 INFO L423 AbstractCegarLoop]: === Iteration 1 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 14:35:08,941 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:08,942 INFO L82 PathProgramCache]: Analyzing trace with hash -1878681222, now seen corresponding path program 1 times [2018-11-18 14:35:08,944 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:35:08,944 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:35:08,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:08,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:08,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:09,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:35:09,064 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:35:09,064 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 14:35:09,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 14:35:09,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 14:35:09,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 14:35:09,077 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 5 states. [2018-11-18 14:35:09,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:09,173 INFO L93 Difference]: Finished difference Result 69 states and 76 transitions. [2018-11-18 14:35:09,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 14:35:09,174 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-18 14:35:09,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:09,181 INFO L225 Difference]: With dead ends: 69 [2018-11-18 14:35:09,181 INFO L226 Difference]: Without dead ends: 60 [2018-11-18 14:35:09,183 INFO L604 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 [2018-11-18 14:35:09,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-11-18 14:35:09,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2018-11-18 14:35:09,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-11-18 14:35:09,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2018-11-18 14:35:09,215 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 9 [2018-11-18 14:35:09,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:09,215 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2018-11-18 14:35:09,215 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 14:35:09,215 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2018-11-18 14:35:09,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 14:35:09,215 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:09,215 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:35:09,216 INFO L423 AbstractCegarLoop]: === Iteration 2 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 14:35:09,216 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:09,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1890424319, now seen corresponding path program 1 times [2018-11-18 14:35:09,216 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:35:09,216 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:35:09,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:09,217 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:09,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:09,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:09,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:35:09,232 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:35:09,232 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:35:09,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 14:35:09,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:35:09,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:35:09,234 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand 3 states. [2018-11-18 14:35:09,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:09,257 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2018-11-18 14:35:09,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:35:09,258 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-18 14:35:09,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:09,259 INFO L225 Difference]: With dead ends: 56 [2018-11-18 14:35:09,259 INFO L226 Difference]: Without dead ends: 54 [2018-11-18 14:35:09,260 INFO L604 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 [2018-11-18 14:35:09,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-11-18 14:35:09,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2018-11-18 14:35:09,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-11-18 14:35:09,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2018-11-18 14:35:09,267 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 59 transitions. Word has length 10 [2018-11-18 14:35:09,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:09,267 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 59 transitions. [2018-11-18 14:35:09,267 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 14:35:09,267 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2018-11-18 14:35:09,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 14:35:09,268 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:09,268 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:35:09,268 INFO L423 AbstractCegarLoop]: === Iteration 3 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 14:35:09,268 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:09,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1814880932, now seen corresponding path program 1 times [2018-11-18 14:35:09,269 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:35:09,269 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:35:09,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:09,269 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:09,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:09,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:09,317 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:35:09,317 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:35:09,318 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 14:35:09,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 14:35:09,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 14:35:09,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:35:09,318 INFO L87 Difference]: Start difference. First operand 52 states and 59 transitions. Second operand 7 states. [2018-11-18 14:35:09,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:09,434 INFO L93 Difference]: Finished difference Result 71 states and 81 transitions. [2018-11-18 14:35:09,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 14:35:09,434 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2018-11-18 14:35:09,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:09,435 INFO L225 Difference]: With dead ends: 71 [2018-11-18 14:35:09,435 INFO L226 Difference]: Without dead ends: 69 [2018-11-18 14:35:09,436 INFO L604 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 [2018-11-18 14:35:09,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-11-18 14:35:09,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 65. [2018-11-18 14:35:09,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-11-18 14:35:09,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 76 transitions. [2018-11-18 14:35:09,443 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 76 transitions. Word has length 17 [2018-11-18 14:35:09,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:09,444 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 76 transitions. [2018-11-18 14:35:09,444 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 14:35:09,444 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 76 transitions. [2018-11-18 14:35:09,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 14:35:09,445 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:09,445 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:35:09,445 INFO L423 AbstractCegarLoop]: === Iteration 4 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 14:35:09,445 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:09,445 INFO L82 PathProgramCache]: Analyzing trace with hash -2069922715, now seen corresponding path program 1 times [2018-11-18 14:35:09,446 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:35:09,446 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:35:09,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:09,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:09,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:09,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:09,488 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 14:35:09,488 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:35:09,488 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 14:35:09,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 14:35:09,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 14:35:09,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 14:35:09,489 INFO L87 Difference]: Start difference. First operand 65 states and 76 transitions. Second operand 5 states. [2018-11-18 14:35:09,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:09,555 INFO L93 Difference]: Finished difference Result 81 states and 100 transitions. [2018-11-18 14:35:09,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 14:35:09,556 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-11-18 14:35:09,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:09,557 INFO L225 Difference]: With dead ends: 81 [2018-11-18 14:35:09,557 INFO L226 Difference]: Without dead ends: 80 [2018-11-18 14:35:09,557 INFO L604 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 [2018-11-18 14:35:09,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-11-18 14:35:09,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 69. [2018-11-18 14:35:09,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-11-18 14:35:09,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 80 transitions. [2018-11-18 14:35:09,566 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 80 transitions. Word has length 20 [2018-11-18 14:35:09,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:09,566 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 80 transitions. [2018-11-18 14:35:09,566 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 14:35:09,566 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 80 transitions. [2018-11-18 14:35:09,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 14:35:09,567 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:09,567 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:35:09,568 INFO L423 AbstractCegarLoop]: === Iteration 5 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 14:35:09,568 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:09,568 INFO L82 PathProgramCache]: Analyzing trace with hash 256905316, now seen corresponding path program 1 times [2018-11-18 14:35:09,568 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:35:09,568 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:35:09,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:09,569 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:09,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:09,587 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 14:35:09,587 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:35:09,587 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:35:09,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 14:35:09,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:35:09,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:35:09,588 INFO L87 Difference]: Start difference. First operand 69 states and 80 transitions. Second operand 3 states. [2018-11-18 14:35:09,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:09,608 INFO L93 Difference]: Finished difference Result 71 states and 87 transitions. [2018-11-18 14:35:09,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:35:09,608 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-11-18 14:35:09,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:09,609 INFO L225 Difference]: With dead ends: 71 [2018-11-18 14:35:09,609 INFO L226 Difference]: Without dead ends: 70 [2018-11-18 14:35:09,610 INFO L604 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 [2018-11-18 14:35:09,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-11-18 14:35:09,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2018-11-18 14:35:09,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-11-18 14:35:09,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 79 transitions. [2018-11-18 14:35:09,617 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 79 transitions. Word has length 21 [2018-11-18 14:35:09,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:09,618 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 79 transitions. [2018-11-18 14:35:09,618 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 14:35:09,618 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 79 transitions. [2018-11-18 14:35:09,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 14:35:09,619 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:09,619 INFO L375 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] [2018-11-18 14:35:09,619 INFO L423 AbstractCegarLoop]: === Iteration 6 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 14:35:09,619 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:09,619 INFO L82 PathProgramCache]: Analyzing trace with hash -831628633, now seen corresponding path program 1 times [2018-11-18 14:35:09,620 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:35:09,620 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:35:09,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:09,621 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:09,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:09,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:09,668 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 14:35:09,668 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:35:09,668 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 14:35:09,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 14:35:09,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 14:35:09,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 14:35:09,669 INFO L87 Difference]: Start difference. First operand 68 states and 79 transitions. Second operand 5 states. [2018-11-18 14:35:09,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:09,709 INFO L93 Difference]: Finished difference Result 127 states and 161 transitions. [2018-11-18 14:35:09,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 14:35:09,710 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-11-18 14:35:09,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:09,710 INFO L225 Difference]: With dead ends: 127 [2018-11-18 14:35:09,710 INFO L226 Difference]: Without dead ends: 66 [2018-11-18 14:35:09,711 INFO L604 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 [2018-11-18 14:35:09,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-11-18 14:35:09,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2018-11-18 14:35:09,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-11-18 14:35:09,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 73 transitions. [2018-11-18 14:35:09,718 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 73 transitions. Word has length 25 [2018-11-18 14:35:09,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:09,718 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 73 transitions. [2018-11-18 14:35:09,718 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 14:35:09,718 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 73 transitions. [2018-11-18 14:35:09,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 14:35:09,719 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:09,719 INFO L375 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] [2018-11-18 14:35:09,720 INFO L423 AbstractCegarLoop]: === Iteration 7 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 14:35:09,720 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:09,720 INFO L82 PathProgramCache]: Analyzing trace with hash 1630439354, now seen corresponding path program 1 times [2018-11-18 14:35:09,720 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:35:09,720 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:35:09,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:09,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:09,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:09,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:09,757 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 14:35:09,758 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:35:09,758 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 14:35:09,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 14:35:09,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 14:35:09,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 14:35:09,758 INFO L87 Difference]: Start difference. First operand 64 states and 73 transitions. Second operand 5 states. [2018-11-18 14:35:09,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:09,796 INFO L93 Difference]: Finished difference Result 76 states and 92 transitions. [2018-11-18 14:35:09,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 14:35:09,797 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-11-18 14:35:09,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:09,798 INFO L225 Difference]: With dead ends: 76 [2018-11-18 14:35:09,798 INFO L226 Difference]: Without dead ends: 75 [2018-11-18 14:35:09,798 INFO L604 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 [2018-11-18 14:35:09,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-11-18 14:35:09,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72. [2018-11-18 14:35:09,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-11-18 14:35:09,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 86 transitions. [2018-11-18 14:35:09,803 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 86 transitions. Word has length 25 [2018-11-18 14:35:09,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:09,803 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 86 transitions. [2018-11-18 14:35:09,803 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 14:35:09,803 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 86 transitions. [2018-11-18 14:35:09,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 14:35:09,804 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:09,804 INFO L375 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] [2018-11-18 14:35:09,804 INFO L423 AbstractCegarLoop]: === Iteration 8 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 14:35:09,805 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:09,805 INFO L82 PathProgramCache]: Analyzing trace with hash -995987509, now seen corresponding path program 1 times [2018-11-18 14:35:09,805 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:35:09,805 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:35:09,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:09,806 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:09,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:09,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:09,828 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 14:35:09,828 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:35:09,828 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 14:35:09,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 14:35:09,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 14:35:09,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 14:35:09,829 INFO L87 Difference]: Start difference. First operand 72 states and 86 transitions. Second operand 5 states. [2018-11-18 14:35:09,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:09,867 INFO L93 Difference]: Finished difference Result 79 states and 94 transitions. [2018-11-18 14:35:09,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 14:35:09,867 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2018-11-18 14:35:09,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:09,868 INFO L225 Difference]: With dead ends: 79 [2018-11-18 14:35:09,868 INFO L226 Difference]: Without dead ends: 75 [2018-11-18 14:35:09,869 INFO L604 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 [2018-11-18 14:35:09,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-11-18 14:35:09,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72. [2018-11-18 14:35:09,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-11-18 14:35:09,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 85 transitions. [2018-11-18 14:35:09,875 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 85 transitions. Word has length 26 [2018-11-18 14:35:09,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:09,876 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 85 transitions. [2018-11-18 14:35:09,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 14:35:09,876 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 85 transitions. [2018-11-18 14:35:09,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-18 14:35:09,877 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:09,877 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:35:09,877 INFO L423 AbstractCegarLoop]: === Iteration 9 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 14:35:09,877 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:09,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1986621902, now seen corresponding path program 1 times [2018-11-18 14:35:09,878 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:35:09,878 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:35:09,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:09,878 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:09,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:09,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:09,930 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-11-18 14:35:09,931 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:35:09,931 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 14:35:09,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 14:35:09,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 14:35:09,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:35:09,932 INFO L87 Difference]: Start difference. First operand 72 states and 85 transitions. Second operand 7 states. [2018-11-18 14:35:10,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:10,013 INFO L93 Difference]: Finished difference Result 111 states and 142 transitions. [2018-11-18 14:35:10,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 14:35:10,013 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2018-11-18 14:35:10,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:10,014 INFO L225 Difference]: With dead ends: 111 [2018-11-18 14:35:10,014 INFO L226 Difference]: Without dead ends: 110 [2018-11-18 14:35:10,015 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-18 14:35:10,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2018-11-18 14:35:10,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 83. [2018-11-18 14:35:10,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-11-18 14:35:10,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 100 transitions. [2018-11-18 14:35:10,022 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 100 transitions. Word has length 46 [2018-11-18 14:35:10,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:10,023 INFO L480 AbstractCegarLoop]: Abstraction has 83 states and 100 transitions. [2018-11-18 14:35:10,023 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 14:35:10,023 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 100 transitions. [2018-11-18 14:35:10,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-18 14:35:10,024 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:10,024 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:35:10,024 INFO L423 AbstractCegarLoop]: === Iteration 10 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 14:35:10,024 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:10,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1532753995, now seen corresponding path program 1 times [2018-11-18 14:35:10,025 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:35:10,025 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:35:10,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:10,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:10,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:10,070 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-18 14:35:10,070 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:35:10,070 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 14:35:10,071 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 14:35:10,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 14:35:10,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 14:35:10,072 INFO L87 Difference]: Start difference. First operand 83 states and 100 transitions. Second operand 5 states. [2018-11-18 14:35:10,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:10,104 INFO L93 Difference]: Finished difference Result 85 states and 100 transitions. [2018-11-18 14:35:10,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 14:35:10,105 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2018-11-18 14:35:10,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:10,106 INFO L225 Difference]: With dead ends: 85 [2018-11-18 14:35:10,106 INFO L226 Difference]: Without dead ends: 84 [2018-11-18 14:35:10,106 INFO L604 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 [2018-11-18 14:35:10,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-11-18 14:35:10,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2018-11-18 14:35:10,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-11-18 14:35:10,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 99 transitions. [2018-11-18 14:35:10,112 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 99 transitions. Word has length 51 [2018-11-18 14:35:10,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:10,113 INFO L480 AbstractCegarLoop]: Abstraction has 82 states and 99 transitions. [2018-11-18 14:35:10,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 14:35:10,113 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 99 transitions. [2018-11-18 14:35:10,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-11-18 14:35:10,118 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:10,118 INFO L375 BasicCegarLoop]: trace histogram [7, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:35:10,118 INFO L423 AbstractCegarLoop]: === Iteration 11 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 14:35:10,119 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:10,119 INFO L82 PathProgramCache]: Analyzing trace with hash -914852293, now seen corresponding path program 1 times [2018-11-18 14:35:10,119 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:35:10,119 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:35:10,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:10,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:10,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:10,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:10,191 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 5 proven. 29 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-11-18 14:35:10,191 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:35:10,192 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65c9fff4-9c68-4b37-b245-2362f2db0542/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 [2018-11-18 14:35:10,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:10,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:10,236 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:35:10,264 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 65 proven. 1 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2018-11-18 14:35:10,280 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 14:35:10,280 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-11-18 14:35:10,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 14:35:10,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 14:35:10,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:35:10,281 INFO L87 Difference]: Start difference. First operand 82 states and 99 transitions. Second operand 7 states. [2018-11-18 14:35:10,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:10,341 INFO L93 Difference]: Finished difference Result 172 states and 214 transitions. [2018-11-18 14:35:10,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 14:35:10,341 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 80 [2018-11-18 14:35:10,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:10,342 INFO L225 Difference]: With dead ends: 172 [2018-11-18 14:35:10,342 INFO L226 Difference]: Without dead ends: 97 [2018-11-18 14:35:10,343 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-11-18 14:35:10,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-11-18 14:35:10,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 87. [2018-11-18 14:35:10,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-11-18 14:35:10,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 100 transitions. [2018-11-18 14:35:10,350 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 100 transitions. Word has length 80 [2018-11-18 14:35:10,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:10,350 INFO L480 AbstractCegarLoop]: Abstraction has 87 states and 100 transitions. [2018-11-18 14:35:10,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 14:35:10,351 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 100 transitions. [2018-11-18 14:35:10,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-11-18 14:35:10,352 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:10,352 INFO L375 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] [2018-11-18 14:35:10,353 INFO L423 AbstractCegarLoop]: === Iteration 12 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 14:35:10,353 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:10,353 INFO L82 PathProgramCache]: Analyzing trace with hash 187335224, now seen corresponding path program 2 times [2018-11-18 14:35:10,353 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:35:10,353 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:35:10,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:10,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:10,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:10,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:10,430 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2018-11-18 14:35:10,431 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:35:10,431 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65c9fff4-9c68-4b37-b245-2362f2db0542/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 [2018-11-18 14:35:10,441 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 14:35:10,460 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 14:35:10,460 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 14:35:10,463 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:35:10,515 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-11-18 14:35:10,530 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 14:35:10,530 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 12 [2018-11-18 14:35:10,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-18 14:35:10,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-18 14:35:10,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2018-11-18 14:35:10,531 INFO L87 Difference]: Start difference. First operand 87 states and 100 transitions. Second operand 13 states. [2018-11-18 14:35:10,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:10,605 INFO L93 Difference]: Finished difference Result 109 states and 125 transitions. [2018-11-18 14:35:10,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-18 14:35:10,605 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 72 [2018-11-18 14:35:10,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:10,606 INFO L225 Difference]: With dead ends: 109 [2018-11-18 14:35:10,606 INFO L226 Difference]: Without dead ends: 108 [2018-11-18 14:35:10,607 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2018-11-18 14:35:10,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-11-18 14:35:10,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 98. [2018-11-18 14:35:10,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-11-18 14:35:10,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 112 transitions. [2018-11-18 14:35:10,614 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 112 transitions. Word has length 72 [2018-11-18 14:35:10,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:10,614 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 112 transitions. [2018-11-18 14:35:10,614 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-18 14:35:10,614 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 112 transitions. [2018-11-18 14:35:10,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-11-18 14:35:10,615 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:10,615 INFO L375 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] [2018-11-18 14:35:10,616 INFO L423 AbstractCegarLoop]: === Iteration 13 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 14:35:10,616 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:10,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1512424695, now seen corresponding path program 1 times [2018-11-18 14:35:10,616 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:35:10,616 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:35:10,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:10,617 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:35:10,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:10,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:10,670 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2018-11-18 14:35:10,670 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:35:10,670 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65c9fff4-9c68-4b37-b245-2362f2db0542/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 [2018-11-18 14:35:10,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:10,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:10,692 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:35:10,736 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2018-11-18 14:35:10,751 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 14:35:10,751 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2018-11-18 14:35:10,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 14:35:10,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 14:35:10,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-11-18 14:35:10,752 INFO L87 Difference]: Start difference. First operand 98 states and 112 transitions. Second operand 10 states. [2018-11-18 14:35:10,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:10,798 INFO L93 Difference]: Finished difference Result 106 states and 121 transitions. [2018-11-18 14:35:10,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 14:35:10,798 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 73 [2018-11-18 14:35:10,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:10,799 INFO L225 Difference]: With dead ends: 106 [2018-11-18 14:35:10,799 INFO L226 Difference]: Without dead ends: 105 [2018-11-18 14:35:10,799 INFO L604 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 [2018-11-18 14:35:10,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-11-18 14:35:10,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 99. [2018-11-18 14:35:10,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-11-18 14:35:10,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 113 transitions. [2018-11-18 14:35:10,805 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 113 transitions. Word has length 73 [2018-11-18 14:35:10,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:10,806 INFO L480 AbstractCegarLoop]: Abstraction has 99 states and 113 transitions. [2018-11-18 14:35:10,806 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 14:35:10,806 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 113 transitions. [2018-11-18 14:35:10,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-11-18 14:35:10,807 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:10,807 INFO L375 BasicCegarLoop]: trace histogram [14, 12, 10, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:35:10,808 INFO L423 AbstractCegarLoop]: === Iteration 14 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 14:35:10,808 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:10,808 INFO L82 PathProgramCache]: Analyzing trace with hash -2029412680, now seen corresponding path program 1 times [2018-11-18 14:35:10,808 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:35:10,808 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:35:10,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:10,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:10,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:10,912 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 121 proven. 88 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2018-11-18 14:35:10,913 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:35:10,913 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65c9fff4-9c68-4b37-b245-2362f2db0542/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 [2018-11-18 14:35:10,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:10,960 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:35:11,048 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 77 proven. 133 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2018-11-18 14:35:11,073 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 14:35:11,073 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 12 [2018-11-18 14:35:11,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 14:35:11,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 14:35:11,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-11-18 14:35:11,074 INFO L87 Difference]: Start difference. First operand 99 states and 113 transitions. Second operand 12 states. [2018-11-18 14:35:11,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:11,355 INFO L93 Difference]: Finished difference Result 264 states and 339 transitions. [2018-11-18 14:35:11,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-18 14:35:11,356 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 171 [2018-11-18 14:35:11,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:11,358 INFO L225 Difference]: With dead ends: 264 [2018-11-18 14:35:11,358 INFO L226 Difference]: Without dead ends: 172 [2018-11-18 14:35:11,359 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2018-11-18 14:35:11,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2018-11-18 14:35:11,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 163. [2018-11-18 14:35:11,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2018-11-18 14:35:11,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 198 transitions. [2018-11-18 14:35:11,368 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 198 transitions. Word has length 171 [2018-11-18 14:35:11,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:11,368 INFO L480 AbstractCegarLoop]: Abstraction has 163 states and 198 transitions. [2018-11-18 14:35:11,368 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 14:35:11,368 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 198 transitions. [2018-11-18 14:35:11,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-11-18 14:35:11,369 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:11,369 INFO L375 BasicCegarLoop]: trace histogram [9, 8, 7, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:35:11,369 INFO L423 AbstractCegarLoop]: === Iteration 15 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 14:35:11,370 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:11,370 INFO L82 PathProgramCache]: Analyzing trace with hash -2006268357, now seen corresponding path program 1 times [2018-11-18 14:35:11,370 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:35:11,370 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:35:11,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:11,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:11,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:11,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:11,445 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 80 proven. 41 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2018-11-18 14:35:11,445 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:35:11,446 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65c9fff4-9c68-4b37-b245-2362f2db0542/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 [2018-11-18 14:35:11,465 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:11,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:11,491 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:35:11,506 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 80 proven. 41 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2018-11-18 14:35:11,522 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 14:35:11,522 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2018-11-18 14:35:11,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 14:35:11,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 14:35:11,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-11-18 14:35:11,524 INFO L87 Difference]: Start difference. First operand 163 states and 198 transitions. Second operand 11 states. [2018-11-18 14:35:11,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:11,699 INFO L93 Difference]: Finished difference Result 333 states and 437 transitions. [2018-11-18 14:35:11,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 14:35:11,700 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 116 [2018-11-18 14:35:11,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:11,701 INFO L225 Difference]: With dead ends: 333 [2018-11-18 14:35:11,701 INFO L226 Difference]: Without dead ends: 181 [2018-11-18 14:35:11,702 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2018-11-18 14:35:11,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2018-11-18 14:35:11,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 179. [2018-11-18 14:35:11,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2018-11-18 14:35:11,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 216 transitions. [2018-11-18 14:35:11,712 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 216 transitions. Word has length 116 [2018-11-18 14:35:11,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:11,713 INFO L480 AbstractCegarLoop]: Abstraction has 179 states and 216 transitions. [2018-11-18 14:35:11,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 14:35:11,713 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 216 transitions. [2018-11-18 14:35:11,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2018-11-18 14:35:11,715 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:11,715 INFO L375 BasicCegarLoop]: trace histogram [20, 18, 15, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:35:11,715 INFO L423 AbstractCegarLoop]: === Iteration 16 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 14:35:11,715 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:11,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1404896159, now seen corresponding path program 2 times [2018-11-18 14:35:11,715 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:35:11,716 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:35:11,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:11,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:11,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:11,841 INFO L134 CoverageAnalysis]: Checked inductivity of 1350 backedges. 262 proven. 96 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2018-11-18 14:35:11,842 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:35:11,842 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65c9fff4-9c68-4b37-b245-2362f2db0542/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 [2018-11-18 14:35:11,850 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 14:35:11,887 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 14:35:11,887 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 14:35:11,891 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:35:12,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1350 backedges. 759 proven. 211 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2018-11-18 14:35:12,016 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 14:35:12,016 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 17] total 18 [2018-11-18 14:35:12,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-18 14:35:12,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-18 14:35:12,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2018-11-18 14:35:12,017 INFO L87 Difference]: Start difference. First operand 179 states and 216 transitions. Second operand 18 states. [2018-11-18 14:35:12,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:12,518 INFO L93 Difference]: Finished difference Result 380 states and 506 transitions. [2018-11-18 14:35:12,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-18 14:35:12,518 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 254 [2018-11-18 14:35:12,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:12,521 INFO L225 Difference]: With dead ends: 380 [2018-11-18 14:35:12,521 INFO L226 Difference]: Without dead ends: 212 [2018-11-18 14:35:12,522 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=172, Invalid=950, Unknown=0, NotChecked=0, Total=1122 [2018-11-18 14:35:12,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2018-11-18 14:35:12,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 174. [2018-11-18 14:35:12,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2018-11-18 14:35:12,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 211 transitions. [2018-11-18 14:35:12,533 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 211 transitions. Word has length 254 [2018-11-18 14:35:12,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:12,533 INFO L480 AbstractCegarLoop]: Abstraction has 174 states and 211 transitions. [2018-11-18 14:35:12,533 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-18 14:35:12,533 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 211 transitions. [2018-11-18 14:35:12,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-11-18 14:35:12,535 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:12,535 INFO L375 BasicCegarLoop]: trace histogram [15, 14, 11, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:35:12,536 INFO L423 AbstractCegarLoop]: === Iteration 17 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 14:35:12,536 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:12,536 INFO L82 PathProgramCache]: Analyzing trace with hash -167045863, now seen corresponding path program 2 times [2018-11-18 14:35:12,536 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:35:12,536 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:35:12,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:12,537 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:35:12,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:12,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:12,614 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 204 proven. 4 refuted. 0 times theorem prover too weak. 522 trivial. 0 not checked. [2018-11-18 14:35:12,614 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:35:12,614 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65c9fff4-9c68-4b37-b245-2362f2db0542/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 [2018-11-18 14:35:12,630 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 14:35:12,660 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 14:35:12,661 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 14:35:12,663 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:35:12,739 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 4 proven. 192 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2018-11-18 14:35:12,758 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 14:35:12,758 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2018-11-18 14:35:12,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-18 14:35:12,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-18 14:35:12,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2018-11-18 14:35:12,759 INFO L87 Difference]: Start difference. First operand 174 states and 211 transitions. Second operand 13 states. [2018-11-18 14:35:12,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:12,820 INFO L93 Difference]: Finished difference Result 174 states and 211 transitions. [2018-11-18 14:35:12,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 14:35:12,821 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 189 [2018-11-18 14:35:12,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:12,822 INFO L225 Difference]: With dead ends: 174 [2018-11-18 14:35:12,822 INFO L226 Difference]: Without dead ends: 172 [2018-11-18 14:35:12,823 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2018-11-18 14:35:12,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2018-11-18 14:35:12,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2018-11-18 14:35:12,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2018-11-18 14:35:12,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 206 transitions. [2018-11-18 14:35:12,831 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 206 transitions. Word has length 189 [2018-11-18 14:35:12,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:12,832 INFO L480 AbstractCegarLoop]: Abstraction has 172 states and 206 transitions. [2018-11-18 14:35:12,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-18 14:35:12,832 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 206 transitions. [2018-11-18 14:35:12,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-11-18 14:35:12,835 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:12,835 INFO L375 BasicCegarLoop]: trace histogram [15, 14, 11, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:35:12,835 INFO L423 AbstractCegarLoop]: === Iteration 18 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 14:35:12,835 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:12,835 INFO L82 PathProgramCache]: Analyzing trace with hash -883454388, now seen corresponding path program 1 times [2018-11-18 14:35:12,835 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:35:12,836 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:35:12,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:12,836 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:35:12,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:12,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:12,926 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 208 proven. 6 refuted. 0 times theorem prover too weak. 522 trivial. 0 not checked. [2018-11-18 14:35:12,926 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:35:12,926 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65c9fff4-9c68-4b37-b245-2362f2db0542/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 [2018-11-18 14:35:12,946 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:12,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:12,981 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:35:13,058 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 6 proven. 196 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2018-11-18 14:35:13,075 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 14:35:13,076 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2018-11-18 14:35:13,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-18 14:35:13,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-18 14:35:13,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2018-11-18 14:35:13,077 INFO L87 Difference]: Start difference. First operand 172 states and 206 transitions. Second operand 13 states. [2018-11-18 14:35:13,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:13,117 INFO L93 Difference]: Finished difference Result 172 states and 206 transitions. [2018-11-18 14:35:13,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 14:35:13,118 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 190 [2018-11-18 14:35:13,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:13,119 INFO L225 Difference]: With dead ends: 172 [2018-11-18 14:35:13,119 INFO L226 Difference]: Without dead ends: 163 [2018-11-18 14:35:13,119 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2018-11-18 14:35:13,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2018-11-18 14:35:13,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2018-11-18 14:35:13,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2018-11-18 14:35:13,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 190 transitions. [2018-11-18 14:35:13,128 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 190 transitions. Word has length 190 [2018-11-18 14:35:13,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:13,129 INFO L480 AbstractCegarLoop]: Abstraction has 163 states and 190 transitions. [2018-11-18 14:35:13,129 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-18 14:35:13,129 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 190 transitions. [2018-11-18 14:35:13,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2018-11-18 14:35:13,129 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:13,130 INFO L375 BasicCegarLoop]: trace histogram [16, 14, 11, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:35:13,130 INFO L423 AbstractCegarLoop]: === Iteration 19 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 14:35:13,130 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:13,130 INFO L82 PathProgramCache]: Analyzing trace with hash 803401173, now seen corresponding path program 1 times [2018-11-18 14:35:13,130 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:35:13,130 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:35:13,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:13,131 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:13,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:13,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:13,197 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 14 proven. 111 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2018-11-18 14:35:13,197 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:35:13,197 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65c9fff4-9c68-4b37-b245-2362f2db0542/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:35:13,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:13,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:13,236 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:35:13,323 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 14 proven. 132 refuted. 0 times theorem prover too weak. 682 trivial. 0 not checked. [2018-11-18 14:35:13,352 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 14:35:13,352 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10] total 13 [2018-11-18 14:35:13,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 14:35:13,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 14:35:13,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2018-11-18 14:35:13,353 INFO L87 Difference]: Start difference. First operand 163 states and 190 transitions. Second operand 14 states. [2018-11-18 14:35:13,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:13,514 INFO L93 Difference]: Finished difference Result 269 states and 313 transitions. [2018-11-18 14:35:13,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 14:35:13,515 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 202 [2018-11-18 14:35:13,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:13,515 INFO L225 Difference]: With dead ends: 269 [2018-11-18 14:35:13,515 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 14:35:13,516 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2018-11-18 14:35:13,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 14:35:13,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 14:35:13,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 14:35:13,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 14:35:13,517 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 202 [2018-11-18 14:35:13,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:13,517 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 14:35:13,517 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 14:35:13,517 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 14:35:13,517 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 14:35:13,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 14:35:13,557 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:35:13,568 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:35:13,577 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:35:13,582 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:35:13,587 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:35:13,591 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:35:13,595 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:35:13,596 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:35:13,606 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:35:13,607 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:35:13,615 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:35:13,625 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:35:13,631 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:35:13,640 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:35:13,651 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:35:13,658 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:35:13,762 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:35:13,873 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 16 [2018-11-18 14:35:14,011 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 15 [2018-11-18 14:35:14,231 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 20 [2018-11-18 14:35:14,234 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 14:35:14,234 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 14:35:14,234 INFO L425 ceAbstractionStarter]: For program point fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-11-18 14:35:14,234 INFO L425 ceAbstractionStarter]: For program point fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-11-18 14:35:14,234 INFO L425 ceAbstractionStarter]: For program point fFINAL(lines 11 15) no Hoare annotation was computed. [2018-11-18 14:35:14,234 INFO L421 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: (or (and (<= f_~x |f_#in~x|) (<= |f_#in~x| f_~x) (<= 1 f_~x)) (< 2147483645 |f_#in~x|)) [2018-11-18 14:35:14,234 INFO L425 ceAbstractionStarter]: For program point L13(lines 13 14) no Hoare annotation was computed. [2018-11-18 14:35:14,234 INFO L425 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2018-11-18 14:35:14,235 INFO L425 ceAbstractionStarter]: For program point fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-11-18 14:35:14,235 INFO L425 ceAbstractionStarter]: For program point L14-2(line 14) no Hoare annotation was computed. [2018-11-18 14:35:14,235 INFO L425 ceAbstractionStarter]: For program point L14-3(line 14) no Hoare annotation was computed. [2018-11-18 14:35:14,235 INFO L421 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)) (< 2147483645 |f_#in~x|)) [2018-11-18 14:35:14,235 INFO L425 ceAbstractionStarter]: For program point fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-11-18 14:35:14,235 INFO L425 ceAbstractionStarter]: For program point L14-5(line 14) no Hoare annotation was computed. [2018-11-18 14:35:14,235 INFO L425 ceAbstractionStarter]: For program point L14-6(line 14) no Hoare annotation was computed. [2018-11-18 14:35:14,235 INFO L425 ceAbstractionStarter]: For program point fEXIT(lines 11 15) no Hoare annotation was computed. [2018-11-18 14:35:14,235 INFO L425 ceAbstractionStarter]: For program point L14-7(line 14) no Hoare annotation was computed. [2018-11-18 14:35:14,235 INFO L428 ceAbstractionStarter]: At program point fENTRY(lines 11 15) the Hoare annotation is: true [2018-11-18 14:35:14,235 INFO L425 ceAbstractionStarter]: For program point gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-18 14:35:14,235 INFO L425 ceAbstractionStarter]: For program point gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-18 14:35:14,235 INFO L425 ceAbstractionStarter]: For program point gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-18 14:35:14,236 INFO L425 ceAbstractionStarter]: For program point gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-18 14:35:14,236 INFO L425 ceAbstractionStarter]: For program point gFINAL(lines 17 21) no Hoare annotation was computed. [2018-11-18 14:35:14,236 INFO L425 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-11-18 14:35:14,236 INFO L425 ceAbstractionStarter]: For program point L19(lines 19 20) no Hoare annotation was computed. [2018-11-18 14:35:14,236 INFO L425 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-11-18 14:35:14,236 INFO L421 ceAbstractionStarter]: At program point L20-2(line 20) the Hoare annotation is: (and (or (< 3 |g_#in~x|) (<= 1 g_~x)) (or (and (<= g_~x |g_#in~x|) (<= |g_#in~x| g_~x)) (< 2147483647 |g_#in~x|))) [2018-11-18 14:35:14,236 INFO L425 ceAbstractionStarter]: For program point L20-3(line 20) no Hoare annotation was computed. [2018-11-18 14:35:14,236 INFO L425 ceAbstractionStarter]: For program point L20-4(line 20) no Hoare annotation was computed. [2018-11-18 14:35:14,236 INFO L425 ceAbstractionStarter]: For program point L20-5(line 20) no Hoare annotation was computed. [2018-11-18 14:35:14,236 INFO L421 ceAbstractionStarter]: At program point L20-6(line 20) the Hoare annotation is: (and (or (<= 1 g_~x) (< 2 |g_#in~x|)) (or (and (<= g_~x |g_#in~x|) (<= 0 |g_#t~ret2|) (<= |g_#in~x| g_~x) (<= |g_#t~ret2| 0)) (< 2147483647 |g_#in~x|))) [2018-11-18 14:35:14,236 INFO L425 ceAbstractionStarter]: For program point L20-7(line 20) no Hoare annotation was computed. [2018-11-18 14:35:14,236 INFO L425 ceAbstractionStarter]: For program point L20-8(line 20) no Hoare annotation was computed. [2018-11-18 14:35:14,236 INFO L425 ceAbstractionStarter]: For program point gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-18 14:35:14,237 INFO L425 ceAbstractionStarter]: For program point L20-9(line 20) no Hoare annotation was computed. [2018-11-18 14:35:14,237 INFO L425 ceAbstractionStarter]: For program point gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-18 14:35:14,237 INFO L425 ceAbstractionStarter]: For program point gEXIT(lines 17 21) no Hoare annotation was computed. [2018-11-18 14:35:14,237 INFO L428 ceAbstractionStarter]: At program point gENTRY(lines 17 21) the Hoare annotation is: true [2018-11-18 14:35:14,237 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 14:35:14,237 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 14:35:14,237 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 14:35:14,237 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 14:35:14,237 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 24 27) the Hoare annotation is: true [2018-11-18 14:35:14,237 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 24 27) no Hoare annotation was computed. [2018-11-18 14:35:14,237 INFO L421 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: (<= main_~x~0 2147483647) [2018-11-18 14:35:14,237 INFO L425 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2018-11-18 14:35:14,237 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 24 27) no Hoare annotation was computed. [2018-11-18 14:35:14,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:35:14 BoogieIcfgContainer [2018-11-18 14:35:14,240 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 14:35:14,242 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:35:14,242 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:35:14,242 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:35:14,243 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:35:08" (3/4) ... [2018-11-18 14:35:14,246 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 14:35:14,253 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 14:35:14,253 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure f [2018-11-18 14:35:14,254 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure g [2018-11-18 14:35:14,254 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 14:35:14,258 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-18 14:35:14,258 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 14:35:14,258 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 14:35:14,293 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_65c9fff4-9c68-4b37-b245-2362f2db0542/bin-2019/uautomizer/witness.graphml [2018-11-18 14:35:14,293 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:35:14,294 INFO L168 Benchmark]: Toolchain (without parser) took 5805.91 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 314.0 MB). Free memory was 959.1 MB in the beginning and 892.2 MB in the end (delta: 66.9 MB). Peak memory consumption was 380.9 MB. Max. memory is 11.5 GB. [2018-11-18 14:35:14,294 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:35:14,294 INFO L168 Benchmark]: CACSL2BoogieTranslator took 135.24 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:35:14,295 INFO L168 Benchmark]: Boogie Preprocessor took 18.19 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:35:14,295 INFO L168 Benchmark]: RCFGBuilder took 218.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -157.4 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2018-11-18 14:35:14,295 INFO L168 Benchmark]: TraceAbstraction took 5378.38 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 187.2 MB). Free memory was 1.1 GB in the beginning and 892.2 MB in the end (delta: 210.8 MB). Peak memory consumption was 398.0 MB. Max. memory is 11.5 GB. [2018-11-18 14:35:14,296 INFO L168 Benchmark]: Witness Printer took 51.09 ms. Allocated memory is still 1.3 GB. Free memory is still 892.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:35:14,300 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 135.24 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.19 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 218.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -157.4 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5378.38 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 187.2 MB). Free memory was 1.1 GB in the beginning and 892.2 MB in the end (delta: 210.8 MB). Peak memory consumption was 398.0 MB. Max. memory is 11.5 GB. * Witness Printer took 51.09 ms. Allocated memory is still 1.3 GB. Free memory is still 892.2 MB. There was no memory consumed. 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, 5.3s OverallTime, 19 OverallIterations, 20 TraceHistogramMax, 2.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 672 SDtfs, 857 SDslu, 2971 SDs, 0 SdLazy, 2244 SolverSat, 302 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1538 GetRequests, 1365 SyntacticMatches, 0 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179occurred in iteration=15, 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, 19 MinimizatonAttempts, 137 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 329 PreInvPairs, 396 NumberOfFragments, 93 HoareAnnotationTreeSize, 329 FomulaSimplifications, 3405 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 11 FomulaSimplificationsInter, 2903 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 2944 NumberOfCodeBlocks, 2944 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 2916 ConstructedInterpolants, 0 QuantifiedInterpolants, 751062 SizeOfPredicates, 26 NumberOfNonLiveVariables, 2648 ConjunctsInSsa, 131 ConjunctsInUnsatCore, 28 InterpolantComputations, 10 PerfectInterpolantSequences, 8244/9589 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...