./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 932d0be5444dce6d8d9a378b61966d0cdf64a5cb ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 23:39:13,733 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 23:39:13,734 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 23:39:13,740 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 23:39:13,741 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 23:39:13,741 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 23:39:13,742 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 23:39:13,743 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 23:39:13,743 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 23:39:13,744 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 23:39:13,744 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 23:39:13,744 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 23:39:13,745 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 23:39:13,745 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 23:39:13,746 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 23:39:13,746 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 23:39:13,747 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 23:39:13,748 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 23:39:13,748 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 23:39:13,749 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 23:39:13,750 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 23:39:13,750 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 23:39:13,751 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 23:39:13,752 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 23:39:13,752 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 23:39:13,752 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 23:39:13,753 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 23:39:13,753 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 23:39:13,753 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 23:39:13,754 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 23:39:13,754 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 23:39:13,754 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 23:39:13,755 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 23:39:13,755 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 23:39:13,755 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 23:39:13,756 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 23:39:13,756 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-12-08 23:39:13,763 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 23:39:13,763 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 23:39:13,764 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 23:39:13,764 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 23:39:13,764 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 23:39:13,764 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 23:39:13,764 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 23:39:13,764 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 23:39:13,764 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 23:39:13,764 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 23:39:13,764 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 23:39:13,765 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 23:39:13,765 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 23:39:13,765 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 23:39:13,765 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 23:39:13,765 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 23:39:13,765 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 23:39:13,765 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 23:39:13,765 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 23:39:13,766 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 23:39:13,766 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-08 23:39:13,766 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 23:39:13,766 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 23:39:13,766 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 23:39:13,766 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 23:39:13,766 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 23:39:13,766 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 23:39:13,766 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 23:39:13,766 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 23:39:13,767 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 23:39:13,767 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 23:39:13,767 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 23:39:13,767 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 23:39:13,767 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 23:39:13,767 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 23:39:13,767 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan 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 -> Taipan 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 -> 932d0be5444dce6d8d9a378b61966d0cdf64a5cb [2018-12-08 23:39:13,784 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 23:39:13,791 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 23:39:13,793 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 23:39:13,794 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 23:39:13,794 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 23:39:13,795 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d_true-termination_true-no-overflow.c [2018-12-08 23:39:13,829 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/data/85b621ff9/2c1a07a62a4447839d4615c5a3fc1c81/FLAG99fb708a6 [2018-12-08 23:39:14,256 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 23:39:14,257 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d_true-termination_true-no-overflow.c [2018-12-08 23:39:14,260 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/data/85b621ff9/2c1a07a62a4447839d4615c5a3fc1c81/FLAG99fb708a6 [2018-12-08 23:39:14,269 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/data/85b621ff9/2c1a07a62a4447839d4615c5a3fc1c81 [2018-12-08 23:39:14,271 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 23:39:14,272 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 23:39:14,272 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 23:39:14,273 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 23:39:14,275 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 23:39:14,275 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:39:14" (1/1) ... [2018-12-08 23:39:14,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@432dabb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:39:14, skipping insertion in model container [2018-12-08 23:39:14,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:39:14" (1/1) ... [2018-12-08 23:39:14,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 23:39:14,291 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 23:39:14,374 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 23:39:14,377 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 23:39:14,386 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 23:39:14,394 INFO L195 MainTranslator]: Completed translation [2018-12-08 23:39:14,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:39:14 WrapperNode [2018-12-08 23:39:14,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 23:39:14,395 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 23:39:14,395 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 23:39:14,395 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 23:39:14,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:39:14" (1/1) ... [2018-12-08 23:39:14,403 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:39:14" (1/1) ... [2018-12-08 23:39:14,407 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 23:39:14,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 23:39:14,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 23:39:14,407 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 23:39:14,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:39:14" (1/1) ... [2018-12-08 23:39:14,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:39:14" (1/1) ... [2018-12-08 23:39:14,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:39:14" (1/1) ... [2018-12-08 23:39:14,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:39:14" (1/1) ... [2018-12-08 23:39:14,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:39:14" (1/1) ... [2018-12-08 23:39:14,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:39:14" (1/1) ... [2018-12-08 23:39:14,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:39:14" (1/1) ... [2018-12-08 23:39:14,419 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 23:39:14,420 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 23:39:14,420 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 23:39:14,420 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 23:39:14,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:39:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/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 [2018-12-08 23:39:14,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 23:39:14,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 23:39:14,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 23:39:14,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 23:39:14,481 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 23:39:14,482 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 23:39:14,582 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 23:39:14,582 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-08 23:39:14,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:39:14 BoogieIcfgContainer [2018-12-08 23:39:14,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 23:39:14,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 23:39:14,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 23:39:14,585 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 23:39:14,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 11:39:14" (1/3) ... [2018-12-08 23:39:14,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ccdb402 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:39:14, skipping insertion in model container [2018-12-08 23:39:14,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:39:14" (2/3) ... [2018-12-08 23:39:14,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ccdb402 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:39:14, skipping insertion in model container [2018-12-08 23:39:14,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:39:14" (3/3) ... [2018-12-08 23:39:14,587 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-random2d_true-termination_true-no-overflow.c [2018-12-08 23:39:14,593 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 23:39:14,596 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2018-12-08 23:39:14,605 INFO L257 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2018-12-08 23:39:14,623 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 23:39:14,623 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 23:39:14,623 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 23:39:14,623 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 23:39:14,623 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 23:39:14,624 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 23:39:14,624 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 23:39:14,624 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 23:39:14,633 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-12-08 23:39:14,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-08 23:39:14,636 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:14,637 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:14,638 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:14,641 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:14,641 INFO L82 PathProgramCache]: Analyzing trace with hash 252417093, now seen corresponding path program 1 times [2018-12-08 23:39:14,643 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:14,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:14,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:14,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:14,676 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:14,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:14,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:14,719 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:39:14,719 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 23:39:14,719 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:39:14,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 23:39:14,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 23:39:14,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 23:39:14,731 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 3 states. [2018-12-08 23:39:14,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:14,757 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2018-12-08 23:39:14,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 23:39:14,758 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-08 23:39:14,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:14,764 INFO L225 Difference]: With dead ends: 48 [2018-12-08 23:39:14,764 INFO L226 Difference]: Without dead ends: 34 [2018-12-08 23:39:14,766 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 23:39:14,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-12-08 23:39:14,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2018-12-08 23:39:14,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-12-08 23:39:14,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2018-12-08 23:39:14,788 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 7 [2018-12-08 23:39:14,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:14,788 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2018-12-08 23:39:14,788 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 23:39:14,788 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2018-12-08 23:39:14,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-08 23:39:14,788 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:14,789 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:14,789 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:14,789 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:14,789 INFO L82 PathProgramCache]: Analyzing trace with hash -765004662, now seen corresponding path program 1 times [2018-12-08 23:39:14,789 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:14,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:14,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:14,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:14,791 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:14,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:14,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:14,801 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:39:14,801 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 23:39:14,801 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:39:14,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 23:39:14,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 23:39:14,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 23:39:14,802 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 3 states. [2018-12-08 23:39:14,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:14,810 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2018-12-08 23:39:14,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 23:39:14,810 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-12-08 23:39:14,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:14,811 INFO L225 Difference]: With dead ends: 33 [2018-12-08 23:39:14,811 INFO L226 Difference]: Without dead ends: 32 [2018-12-08 23:39:14,811 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 23:39:14,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-12-08 23:39:14,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-12-08 23:39:14,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-12-08 23:39:14,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2018-12-08 23:39:14,814 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 8 [2018-12-08 23:39:14,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:14,815 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2018-12-08 23:39:14,815 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 23:39:14,815 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2018-12-08 23:39:14,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-08 23:39:14,815 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:14,815 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:14,816 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:14,816 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:14,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1157363318, now seen corresponding path program 1 times [2018-12-08 23:39:14,816 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:14,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:14,817 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:14,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:14,817 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:14,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:14,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:14,832 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:39:14,832 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 23:39:14,832 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:39:14,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 23:39:14,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 23:39:14,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 23:39:14,833 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand 3 states. [2018-12-08 23:39:14,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:14,853 INFO L93 Difference]: Finished difference Result 55 states and 67 transitions. [2018-12-08 23:39:14,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 23:39:14,854 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-12-08 23:39:14,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:14,854 INFO L225 Difference]: With dead ends: 55 [2018-12-08 23:39:14,854 INFO L226 Difference]: Without dead ends: 53 [2018-12-08 23:39:14,855 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 23:39:14,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-12-08 23:39:14,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 47. [2018-12-08 23:39:14,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-12-08 23:39:14,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 63 transitions. [2018-12-08 23:39:14,858 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 63 transitions. Word has length 11 [2018-12-08 23:39:14,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:14,859 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 63 transitions. [2018-12-08 23:39:14,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 23:39:14,859 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 63 transitions. [2018-12-08 23:39:14,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-08 23:39:14,859 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:14,859 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:14,859 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:14,860 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:14,860 INFO L82 PathProgramCache]: Analyzing trace with hash -1157326159, now seen corresponding path program 1 times [2018-12-08 23:39:14,860 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:14,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:14,861 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:14,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:14,861 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:14,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:14,877 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-08 23:39:14,877 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:14,877 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:14,878 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-12-08 23:39:14,879 INFO L205 CegarAbsIntRunner]: [0], [4], [13], [14], [15], [17], [59], [66], [67], [68] [2018-12-08 23:39:14,897 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 23:39:14,897 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 23:39:14,978 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 23:39:14,978 INFO L272 AbstractInterpreter]: Visited 10 different actions 20 times. Merged at 4 different actions 8 times. Never widened. Performed 87 root evaluator evaluations with a maximum evaluation depth of 3. Performed 87 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 6 variables. [2018-12-08 23:39:14,983 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:14,984 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 23:39:14,984 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:14,984 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/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 [2018-12-08 23:39:14,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:14,991 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 23:39:14,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:15,001 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:15,021 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:15,021 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:15,035 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:15,049 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:15,049 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2018-12-08 23:39:15,050 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:15,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 23:39:15,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 23:39:15,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-12-08 23:39:15,050 INFO L87 Difference]: Start difference. First operand 47 states and 63 transitions. Second operand 6 states. [2018-12-08 23:39:15,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:15,087 INFO L93 Difference]: Finished difference Result 108 states and 146 transitions. [2018-12-08 23:39:15,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 23:39:15,087 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2018-12-08 23:39:15,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:15,088 INFO L225 Difference]: With dead ends: 108 [2018-12-08 23:39:15,088 INFO L226 Difference]: Without dead ends: 107 [2018-12-08 23:39:15,088 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2018-12-08 23:39:15,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2018-12-08 23:39:15,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 44. [2018-12-08 23:39:15,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-12-08 23:39:15,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 59 transitions. [2018-12-08 23:39:15,092 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 59 transitions. Word has length 11 [2018-12-08 23:39:15,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:15,093 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 59 transitions. [2018-12-08 23:39:15,093 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 23:39:15,093 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 59 transitions. [2018-12-08 23:39:15,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-08 23:39:15,093 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:15,093 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:15,093 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:15,093 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:15,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1518524433, now seen corresponding path program 1 times [2018-12-08 23:39:15,094 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:15,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:15,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:15,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:15,095 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:15,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:15,109 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:39:15,109 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 23:39:15,109 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:39:15,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 23:39:15,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 23:39:15,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 23:39:15,110 INFO L87 Difference]: Start difference. First operand 44 states and 59 transitions. Second operand 3 states. [2018-12-08 23:39:15,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:15,126 INFO L93 Difference]: Finished difference Result 81 states and 113 transitions. [2018-12-08 23:39:15,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 23:39:15,126 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-12-08 23:39:15,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:15,127 INFO L225 Difference]: With dead ends: 81 [2018-12-08 23:39:15,127 INFO L226 Difference]: Without dead ends: 79 [2018-12-08 23:39:15,127 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 23:39:15,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-12-08 23:39:15,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 75. [2018-12-08 23:39:15,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-12-08 23:39:15,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 110 transitions. [2018-12-08 23:39:15,132 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 110 transitions. Word has length 12 [2018-12-08 23:39:15,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:15,132 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 110 transitions. [2018-12-08 23:39:15,132 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 23:39:15,133 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 110 transitions. [2018-12-08 23:39:15,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 23:39:15,133 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:15,133 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:15,133 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:15,133 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:15,133 INFO L82 PathProgramCache]: Analyzing trace with hash 170574579, now seen corresponding path program 1 times [2018-12-08 23:39:15,134 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:15,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:15,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:15,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:15,135 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:15,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:15,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:15,147 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:39:15,147 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 23:39:15,147 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:39:15,147 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 23:39:15,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 23:39:15,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 23:39:15,147 INFO L87 Difference]: Start difference. First operand 75 states and 110 transitions. Second operand 3 states. [2018-12-08 23:39:15,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:15,167 INFO L93 Difference]: Finished difference Result 143 states and 215 transitions. [2018-12-08 23:39:15,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 23:39:15,168 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-12-08 23:39:15,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:15,168 INFO L225 Difference]: With dead ends: 143 [2018-12-08 23:39:15,169 INFO L226 Difference]: Without dead ends: 141 [2018-12-08 23:39:15,169 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 23:39:15,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-12-08 23:39:15,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 133. [2018-12-08 23:39:15,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2018-12-08 23:39:15,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 199 transitions. [2018-12-08 23:39:15,177 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 199 transitions. Word has length 13 [2018-12-08 23:39:15,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:15,177 INFO L480 AbstractCegarLoop]: Abstraction has 133 states and 199 transitions. [2018-12-08 23:39:15,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 23:39:15,177 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 199 transitions. [2018-12-08 23:39:15,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-08 23:39:15,177 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:15,177 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:15,178 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:15,178 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:15,178 INFO L82 PathProgramCache]: Analyzing trace with hash 992844728, now seen corresponding path program 1 times [2018-12-08 23:39:15,178 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:15,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:15,179 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:15,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:15,179 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:15,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:15,189 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:39:15,189 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 23:39:15,189 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:39:15,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 23:39:15,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 23:39:15,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 23:39:15,190 INFO L87 Difference]: Start difference. First operand 133 states and 199 transitions. Second operand 3 states. [2018-12-08 23:39:15,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:15,207 INFO L93 Difference]: Finished difference Result 259 states and 393 transitions. [2018-12-08 23:39:15,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 23:39:15,207 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-12-08 23:39:15,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:15,208 INFO L225 Difference]: With dead ends: 259 [2018-12-08 23:39:15,208 INFO L226 Difference]: Without dead ends: 257 [2018-12-08 23:39:15,208 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 23:39:15,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2018-12-08 23:39:15,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 253. [2018-12-08 23:39:15,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2018-12-08 23:39:15,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 381 transitions. [2018-12-08 23:39:15,219 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 381 transitions. Word has length 14 [2018-12-08 23:39:15,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:15,219 INFO L480 AbstractCegarLoop]: Abstraction has 253 states and 381 transitions. [2018-12-08 23:39:15,219 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 23:39:15,219 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 381 transitions. [2018-12-08 23:39:15,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-08 23:39:15,220 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:15,220 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:15,220 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:15,220 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:15,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1784292138, now seen corresponding path program 1 times [2018-12-08 23:39:15,220 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:15,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:15,221 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:15,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:15,221 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:15,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:15,236 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:15,236 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:15,236 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:15,237 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 19 with the following transitions: [2018-12-08 23:39:15,237 INFO L205 CegarAbsIntRunner]: [0], [4], [13], [15], [17], [20], [23], [24], [25], [27], [66], [67], [68] [2018-12-08 23:39:15,238 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 23:39:15,238 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 23:39:15,270 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 23:39:15,270 INFO L272 AbstractInterpreter]: Visited 13 different actions 37 times. Merged at 7 different actions 21 times. Never widened. Performed 186 root evaluator evaluations with a maximum evaluation depth of 3. Performed 186 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 6 variables. [2018-12-08 23:39:15,272 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:15,272 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 23:39:15,272 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:15,272 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/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 [2018-12-08 23:39:15,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:15,278 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 23:39:15,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:15,283 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:15,285 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:15,285 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:15,298 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:15,312 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:15,312 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2018-12-08 23:39:15,313 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:15,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 23:39:15,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 23:39:15,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-12-08 23:39:15,313 INFO L87 Difference]: Start difference. First operand 253 states and 381 transitions. Second operand 4 states. [2018-12-08 23:39:15,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:15,339 INFO L93 Difference]: Finished difference Result 453 states and 692 transitions. [2018-12-08 23:39:15,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 23:39:15,340 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-12-08 23:39:15,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:15,341 INFO L225 Difference]: With dead ends: 453 [2018-12-08 23:39:15,341 INFO L226 Difference]: Without dead ends: 451 [2018-12-08 23:39:15,342 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-12-08 23:39:15,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2018-12-08 23:39:15,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 361. [2018-12-08 23:39:15,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2018-12-08 23:39:15,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 547 transitions. [2018-12-08 23:39:15,360 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 547 transitions. Word has length 18 [2018-12-08 23:39:15,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:15,360 INFO L480 AbstractCegarLoop]: Abstraction has 361 states and 547 transitions. [2018-12-08 23:39:15,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 23:39:15,360 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 547 transitions. [2018-12-08 23:39:15,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-08 23:39:15,361 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:15,361 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:15,361 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:15,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:15,362 INFO L82 PathProgramCache]: Analyzing trace with hash -457667387, now seen corresponding path program 1 times [2018-12-08 23:39:15,362 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:15,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:15,363 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:15,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:15,363 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:15,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:15,384 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:15,384 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:15,384 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:15,384 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 21 with the following transitions: [2018-12-08 23:39:15,384 INFO L205 CegarAbsIntRunner]: [0], [4], [13], [15], [17], [20], [23], [25], [26], [29], [32], [34], [36], [66], [67], [68] [2018-12-08 23:39:15,385 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 23:39:15,385 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 23:39:15,437 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 23:39:15,437 INFO L272 AbstractInterpreter]: Visited 16 different actions 60 times. Merged at 11 different actions 41 times. Never widened. Performed 290 root evaluator evaluations with a maximum evaluation depth of 3. Performed 290 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 6 variables. [2018-12-08 23:39:15,441 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:15,441 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 23:39:15,441 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:15,441 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/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 [2018-12-08 23:39:15,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:15,447 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 23:39:15,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:15,453 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:15,460 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:15,460 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:15,476 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:15,490 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-08 23:39:15,491 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [3] total 5 [2018-12-08 23:39:15,491 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:39:15,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 23:39:15,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 23:39:15,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-12-08 23:39:15,491 INFO L87 Difference]: Start difference. First operand 361 states and 547 transitions. Second operand 3 states. [2018-12-08 23:39:15,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:15,504 INFO L93 Difference]: Finished difference Result 361 states and 547 transitions. [2018-12-08 23:39:15,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 23:39:15,505 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2018-12-08 23:39:15,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:15,506 INFO L225 Difference]: With dead ends: 361 [2018-12-08 23:39:15,506 INFO L226 Difference]: Without dead ends: 360 [2018-12-08 23:39:15,506 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-12-08 23:39:15,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2018-12-08 23:39:15,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2018-12-08 23:39:15,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2018-12-08 23:39:15,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 539 transitions. [2018-12-08 23:39:15,516 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 539 transitions. Word has length 20 [2018-12-08 23:39:15,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:15,516 INFO L480 AbstractCegarLoop]: Abstraction has 360 states and 539 transitions. [2018-12-08 23:39:15,517 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 23:39:15,517 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 539 transitions. [2018-12-08 23:39:15,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-08 23:39:15,517 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:15,517 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:15,518 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:15,518 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:15,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1302601353, now seen corresponding path program 1 times [2018-12-08 23:39:15,518 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:15,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:15,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:15,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:15,520 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:15,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:15,546 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:15,546 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:15,546 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:15,546 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 22 with the following transitions: [2018-12-08 23:39:15,547 INFO L205 CegarAbsIntRunner]: [0], [4], [13], [15], [17], [20], [29], [32], [34], [35], [36], [66], [67], [68] [2018-12-08 23:39:15,547 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 23:39:15,548 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 23:39:15,572 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 23:39:15,572 INFO L272 AbstractInterpreter]: Visited 14 different actions 41 times. Merged at 8 different actions 24 times. Never widened. Performed 198 root evaluator evaluations with a maximum evaluation depth of 3. Performed 198 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 6 variables. [2018-12-08 23:39:15,573 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:15,573 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 23:39:15,573 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:15,574 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/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 [2018-12-08 23:39:15,579 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:15,579 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 23:39:15,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:15,586 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:15,588 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:15,588 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:15,603 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:15,617 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:15,617 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2018-12-08 23:39:15,617 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:15,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 23:39:15,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 23:39:15,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-12-08 23:39:15,618 INFO L87 Difference]: Start difference. First operand 360 states and 539 transitions. Second operand 4 states. [2018-12-08 23:39:15,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:15,641 INFO L93 Difference]: Finished difference Result 613 states and 923 transitions. [2018-12-08 23:39:15,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 23:39:15,642 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-12-08 23:39:15,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:15,643 INFO L225 Difference]: With dead ends: 613 [2018-12-08 23:39:15,643 INFO L226 Difference]: Without dead ends: 612 [2018-12-08 23:39:15,643 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-12-08 23:39:15,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2018-12-08 23:39:15,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 468. [2018-12-08 23:39:15,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2018-12-08 23:39:15,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 705 transitions. [2018-12-08 23:39:15,655 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 705 transitions. Word has length 21 [2018-12-08 23:39:15,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:15,656 INFO L480 AbstractCegarLoop]: Abstraction has 468 states and 705 transitions. [2018-12-08 23:39:15,656 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 23:39:15,656 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 705 transitions. [2018-12-08 23:39:15,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 23:39:15,656 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:15,656 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:15,656 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:15,657 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:15,657 INFO L82 PathProgramCache]: Analyzing trace with hash -789737976, now seen corresponding path program 1 times [2018-12-08 23:39:15,657 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:15,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:15,658 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:15,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:15,658 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:15,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:15,676 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:15,676 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:15,677 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:15,677 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 23 with the following transitions: [2018-12-08 23:39:15,677 INFO L205 CegarAbsIntRunner]: [0], [4], [13], [15], [17], [20], [29], [38], [41], [42], [43], [45], [66], [67], [68] [2018-12-08 23:39:15,677 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 23:39:15,678 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 23:39:15,700 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 23:39:15,701 INFO L272 AbstractInterpreter]: Visited 15 different actions 45 times. Merged at 9 different actions 27 times. Never widened. Performed 210 root evaluator evaluations with a maximum evaluation depth of 3. Performed 210 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 6 variables. [2018-12-08 23:39:15,705 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:15,705 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 23:39:15,705 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:15,705 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/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 [2018-12-08 23:39:15,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:15,711 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 23:39:15,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:15,718 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:15,720 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:15,720 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:15,729 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:15,743 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:15,744 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2018-12-08 23:39:15,744 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:15,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 23:39:15,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 23:39:15,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-12-08 23:39:15,745 INFO L87 Difference]: Start difference. First operand 468 states and 705 transitions. Second operand 4 states. [2018-12-08 23:39:15,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:15,772 INFO L93 Difference]: Finished difference Result 838 states and 1288 transitions. [2018-12-08 23:39:15,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 23:39:15,772 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-12-08 23:39:15,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:15,774 INFO L225 Difference]: With dead ends: 838 [2018-12-08 23:39:15,774 INFO L226 Difference]: Without dead ends: 836 [2018-12-08 23:39:15,774 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-12-08 23:39:15,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2018-12-08 23:39:15,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 672. [2018-12-08 23:39:15,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 672 states. [2018-12-08 23:39:15,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 1011 transitions. [2018-12-08 23:39:15,791 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 1011 transitions. Word has length 22 [2018-12-08 23:39:15,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:15,791 INFO L480 AbstractCegarLoop]: Abstraction has 672 states and 1011 transitions. [2018-12-08 23:39:15,791 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 23:39:15,791 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 1011 transitions. [2018-12-08 23:39:15,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-08 23:39:15,791 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:15,792 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:15,792 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:15,792 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:15,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1545985083, now seen corresponding path program 1 times [2018-12-08 23:39:15,792 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:15,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:15,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:15,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:15,793 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:15,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:15,814 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:15,814 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:15,814 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:15,814 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 25 with the following transitions: [2018-12-08 23:39:15,814 INFO L205 CegarAbsIntRunner]: [0], [4], [13], [15], [17], [20], [29], [38], [41], [43], [44], [47], [50], [52], [54], [66], [67], [68] [2018-12-08 23:39:15,815 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 23:39:15,815 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 23:39:15,838 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 23:39:15,838 INFO L272 AbstractInterpreter]: Visited 18 different actions 57 times. Merged at 12 different actions 36 times. Never widened. Performed 246 root evaluator evaluations with a maximum evaluation depth of 3. Performed 246 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 6 variables. [2018-12-08 23:39:15,839 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:15,839 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 23:39:15,839 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:15,839 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/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 [2018-12-08 23:39:15,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:15,846 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 23:39:15,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:15,851 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:15,862 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:15,862 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:15,882 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:15,904 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-08 23:39:15,904 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [3] total 5 [2018-12-08 23:39:15,905 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:39:15,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 23:39:15,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 23:39:15,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-12-08 23:39:15,905 INFO L87 Difference]: Start difference. First operand 672 states and 1011 transitions. Second operand 3 states. [2018-12-08 23:39:15,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:15,926 INFO L93 Difference]: Finished difference Result 672 states and 1011 transitions. [2018-12-08 23:39:15,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 23:39:15,927 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2018-12-08 23:39:15,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:15,929 INFO L225 Difference]: With dead ends: 672 [2018-12-08 23:39:15,929 INFO L226 Difference]: Without dead ends: 671 [2018-12-08 23:39:15,930 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-12-08 23:39:15,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2018-12-08 23:39:15,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 671. [2018-12-08 23:39:15,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 671 states. [2018-12-08 23:39:15,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 995 transitions. [2018-12-08 23:39:15,955 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 995 transitions. Word has length 24 [2018-12-08 23:39:15,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:15,955 INFO L480 AbstractCegarLoop]: Abstraction has 671 states and 995 transitions. [2018-12-08 23:39:15,955 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 23:39:15,955 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 995 transitions. [2018-12-08 23:39:15,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-08 23:39:15,956 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:15,956 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:15,956 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:15,957 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:15,957 INFO L82 PathProgramCache]: Analyzing trace with hash 582614026, now seen corresponding path program 2 times [2018-12-08 23:39:15,957 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:15,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:15,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:15,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:15,958 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:15,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:15,987 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:15,988 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:15,988 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:15,988 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:15,988 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:15,988 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:15,988 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/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 [2018-12-08 23:39:15,995 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-08 23:39:15,996 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-08 23:39:16,006 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-12-08 23:39:16,006 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 23:39:16,007 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:16,011 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:16,011 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:16,030 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:16,045 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:16,045 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2018-12-08 23:39:16,045 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:16,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 23:39:16,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 23:39:16,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-12-08 23:39:16,046 INFO L87 Difference]: Start difference. First operand 671 states and 995 transitions. Second operand 5 states. [2018-12-08 23:39:16,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:16,093 INFO L93 Difference]: Finished difference Result 1156 states and 1733 transitions. [2018-12-08 23:39:16,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 23:39:16,093 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-12-08 23:39:16,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:16,096 INFO L225 Difference]: With dead ends: 1156 [2018-12-08 23:39:16,097 INFO L226 Difference]: Without dead ends: 1154 [2018-12-08 23:39:16,097 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-12-08 23:39:16,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2018-12-08 23:39:16,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 917. [2018-12-08 23:39:16,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 917 states. [2018-12-08 23:39:16,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1355 transitions. [2018-12-08 23:39:16,140 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1355 transitions. Word has length 25 [2018-12-08 23:39:16,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:16,140 INFO L480 AbstractCegarLoop]: Abstraction has 917 states and 1355 transitions. [2018-12-08 23:39:16,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 23:39:16,140 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1355 transitions. [2018-12-08 23:39:16,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-08 23:39:16,141 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:16,141 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:16,141 INFO L423 AbstractCegarLoop]: === Iteration 14 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:16,142 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:16,142 INFO L82 PathProgramCache]: Analyzing trace with hash -680711543, now seen corresponding path program 1 times [2018-12-08 23:39:16,142 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:16,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:16,143 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 23:39:16,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:16,143 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:16,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:16,160 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:16,160 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:16,160 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:16,160 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 26 with the following transitions: [2018-12-08 23:39:16,161 INFO L205 CegarAbsIntRunner]: [0], [4], [13], [15], [17], [20], [29], [38], [47], [50], [52], [53], [54], [66], [67], [68] [2018-12-08 23:39:16,161 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 23:39:16,162 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 23:39:16,198 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 23:39:16,198 INFO L272 AbstractInterpreter]: Visited 16 different actions 60 times. Merged at 11 different actions 41 times. Never widened. Performed 290 root evaluator evaluations with a maximum evaluation depth of 3. Performed 290 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 6 variables. [2018-12-08 23:39:16,201 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:16,201 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 23:39:16,201 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:16,201 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/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 [2018-12-08 23:39:16,207 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:16,207 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 23:39:16,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:16,213 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:16,214 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:16,214 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:16,233 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:16,248 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:16,248 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2018-12-08 23:39:16,248 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:16,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 23:39:16,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 23:39:16,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-12-08 23:39:16,248 INFO L87 Difference]: Start difference. First operand 917 states and 1355 transitions. Second operand 4 states. [2018-12-08 23:39:16,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:16,295 INFO L93 Difference]: Finished difference Result 1561 states and 2332 transitions. [2018-12-08 23:39:16,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 23:39:16,296 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-12-08 23:39:16,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:16,299 INFO L225 Difference]: With dead ends: 1561 [2018-12-08 23:39:16,299 INFO L226 Difference]: Without dead ends: 1560 [2018-12-08 23:39:16,300 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-12-08 23:39:16,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1560 states. [2018-12-08 23:39:16,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1560 to 1197. [2018-12-08 23:39:16,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1197 states. [2018-12-08 23:39:16,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1772 transitions. [2018-12-08 23:39:16,321 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1772 transitions. Word has length 25 [2018-12-08 23:39:16,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:16,321 INFO L480 AbstractCegarLoop]: Abstraction has 1197 states and 1772 transitions. [2018-12-08 23:39:16,321 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 23:39:16,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1772 transitions. [2018-12-08 23:39:16,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-08 23:39:16,321 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:16,321 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:16,322 INFO L423 AbstractCegarLoop]: === Iteration 15 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:16,322 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:16,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1259703649, now seen corresponding path program 2 times [2018-12-08 23:39:16,322 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:16,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:16,323 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:16,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:16,323 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:16,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:16,351 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:16,351 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:16,351 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:16,351 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:16,351 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:16,351 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:16,351 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/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 [2018-12-08 23:39:16,360 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-08 23:39:16,360 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-08 23:39:16,368 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-12-08 23:39:16,368 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 23:39:16,369 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:16,372 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:16,372 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:16,392 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:16,415 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:16,415 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2018-12-08 23:39:16,415 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:16,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 23:39:16,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 23:39:16,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-12-08 23:39:16,416 INFO L87 Difference]: Start difference. First operand 1197 states and 1772 transitions. Second operand 5 states. [2018-12-08 23:39:16,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:16,456 INFO L93 Difference]: Finished difference Result 1955 states and 2906 transitions. [2018-12-08 23:39:16,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 23:39:16,457 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2018-12-08 23:39:16,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:16,460 INFO L225 Difference]: With dead ends: 1955 [2018-12-08 23:39:16,460 INFO L226 Difference]: Without dead ends: 1954 [2018-12-08 23:39:16,461 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-12-08 23:39:16,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2018-12-08 23:39:16,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1433. [2018-12-08 23:39:16,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1433 states. [2018-12-08 23:39:16,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1433 states to 1433 states and 2118 transitions. [2018-12-08 23:39:16,488 INFO L78 Accepts]: Start accepts. Automaton has 1433 states and 2118 transitions. Word has length 29 [2018-12-08 23:39:16,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:16,488 INFO L480 AbstractCegarLoop]: Abstraction has 1433 states and 2118 transitions. [2018-12-08 23:39:16,488 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 23:39:16,488 INFO L276 IsEmpty]: Start isEmpty. Operand 1433 states and 2118 transitions. [2018-12-08 23:39:16,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-08 23:39:16,489 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:16,489 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:16,489 INFO L423 AbstractCegarLoop]: === Iteration 16 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:16,489 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:16,489 INFO L82 PathProgramCache]: Analyzing trace with hash -886740333, now seen corresponding path program 2 times [2018-12-08 23:39:16,489 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:16,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:16,490 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 23:39:16,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:16,490 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:16,505 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:16,505 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:16,505 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:16,505 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:16,505 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:16,505 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:16,505 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:39:16,512 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-08 23:39:16,512 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-08 23:39:16,518 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-12-08 23:39:16,518 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 23:39:16,519 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:16,521 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:16,521 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:16,546 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:16,560 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:16,561 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2018-12-08 23:39:16,561 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:16,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 23:39:16,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 23:39:16,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-12-08 23:39:16,562 INFO L87 Difference]: Start difference. First operand 1433 states and 2118 transitions. Second operand 5 states. [2018-12-08 23:39:16,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:16,623 INFO L93 Difference]: Finished difference Result 2466 states and 3697 transitions. [2018-12-08 23:39:16,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 23:39:16,623 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2018-12-08 23:39:16,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:16,627 INFO L225 Difference]: With dead ends: 2466 [2018-12-08 23:39:16,627 INFO L226 Difference]: Without dead ends: 2464 [2018-12-08 23:39:16,628 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-12-08 23:39:16,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2464 states. [2018-12-08 23:39:16,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2464 to 1963. [2018-12-08 23:39:16,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1963 states. [2018-12-08 23:39:16,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1963 states to 1963 states and 2886 transitions. [2018-12-08 23:39:16,667 INFO L78 Accepts]: Start accepts. Automaton has 1963 states and 2886 transitions. Word has length 31 [2018-12-08 23:39:16,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:16,667 INFO L480 AbstractCegarLoop]: Abstraction has 1963 states and 2886 transitions. [2018-12-08 23:39:16,667 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 23:39:16,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1963 states and 2886 transitions. [2018-12-08 23:39:16,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-08 23:39:16,667 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:16,667 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:16,668 INFO L423 AbstractCegarLoop]: === Iteration 17 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:16,668 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:16,668 INFO L82 PathProgramCache]: Analyzing trace with hash -716039594, now seen corresponding path program 3 times [2018-12-08 23:39:16,668 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:16,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:16,669 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 23:39:16,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:16,669 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:16,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:16,697 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:16,698 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:16,698 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:16,698 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:16,698 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:16,698 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:16,698 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:39:16,708 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-08 23:39:16,708 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-08 23:39:16,715 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-08 23:39:16,715 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 23:39:16,716 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:16,718 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:16,718 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:16,745 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:16,770 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:16,770 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2018-12-08 23:39:16,770 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:16,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 23:39:16,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 23:39:16,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-12-08 23:39:16,771 INFO L87 Difference]: Start difference. First operand 1963 states and 2886 transitions. Second operand 6 states. [2018-12-08 23:39:16,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:16,856 INFO L93 Difference]: Finished difference Result 3177 states and 4736 transitions. [2018-12-08 23:39:16,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 23:39:16,856 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2018-12-08 23:39:16,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:16,864 INFO L225 Difference]: With dead ends: 3177 [2018-12-08 23:39:16,865 INFO L226 Difference]: Without dead ends: 3175 [2018-12-08 23:39:16,866 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-12-08 23:39:16,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3175 states. [2018-12-08 23:39:16,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3175 to 2567. [2018-12-08 23:39:16,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2567 states. [2018-12-08 23:39:16,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2567 states to 2567 states and 3753 transitions. [2018-12-08 23:39:16,916 INFO L78 Accepts]: Start accepts. Automaton has 2567 states and 3753 transitions. Word has length 32 [2018-12-08 23:39:16,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:16,916 INFO L480 AbstractCegarLoop]: Abstraction has 2567 states and 3753 transitions. [2018-12-08 23:39:16,916 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 23:39:16,916 INFO L276 IsEmpty]: Start isEmpty. Operand 2567 states and 3753 transitions. [2018-12-08 23:39:16,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-12-08 23:39:16,917 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:16,917 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:16,917 INFO L423 AbstractCegarLoop]: === Iteration 18 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:16,917 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:16,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1327564892, now seen corresponding path program 2 times [2018-12-08 23:39:16,917 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:16,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:16,918 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 23:39:16,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:16,918 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:16,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:16,952 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:16,952 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:16,953 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:16,953 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:16,953 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:16,953 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:16,953 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:39:16,962 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-08 23:39:16,962 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-08 23:39:16,969 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-12-08 23:39:16,970 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 23:39:16,971 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:16,974 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:16,975 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:16,998 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:17,023 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:17,023 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2018-12-08 23:39:17,023 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:17,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 23:39:17,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 23:39:17,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-12-08 23:39:17,023 INFO L87 Difference]: Start difference. First operand 2567 states and 3753 transitions. Second operand 5 states. [2018-12-08 23:39:17,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:17,109 INFO L93 Difference]: Finished difference Result 4186 states and 6159 transitions. [2018-12-08 23:39:17,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 23:39:17,110 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2018-12-08 23:39:17,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:17,120 INFO L225 Difference]: With dead ends: 4186 [2018-12-08 23:39:17,120 INFO L226 Difference]: Without dead ends: 4185 [2018-12-08 23:39:17,122 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-12-08 23:39:17,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4185 states. [2018-12-08 23:39:17,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4185 to 3075. [2018-12-08 23:39:17,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3075 states. [2018-12-08 23:39:17,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3075 states to 3075 states and 4487 transitions. [2018-12-08 23:39:17,216 INFO L78 Accepts]: Start accepts. Automaton has 3075 states and 4487 transitions. Word has length 35 [2018-12-08 23:39:17,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:17,216 INFO L480 AbstractCegarLoop]: Abstraction has 3075 states and 4487 transitions. [2018-12-08 23:39:17,216 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 23:39:17,216 INFO L276 IsEmpty]: Start isEmpty. Operand 3075 states and 4487 transitions. [2018-12-08 23:39:17,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-08 23:39:17,217 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:17,217 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:17,217 INFO L423 AbstractCegarLoop]: === Iteration 19 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:17,218 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:17,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1468116811, now seen corresponding path program 3 times [2018-12-08 23:39:17,218 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:17,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:17,219 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 23:39:17,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:17,219 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:17,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:17,246 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:17,246 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:17,246 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:17,247 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:17,247 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:17,247 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:17,247 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:39:17,255 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-08 23:39:17,255 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-08 23:39:17,263 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-08 23:39:17,263 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 23:39:17,264 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:17,268 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:17,268 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:17,294 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:17,319 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:17,319 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2018-12-08 23:39:17,319 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:17,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 23:39:17,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 23:39:17,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-12-08 23:39:17,320 INFO L87 Difference]: Start difference. First operand 3075 states and 4487 transitions. Second operand 6 states. [2018-12-08 23:39:17,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:17,434 INFO L93 Difference]: Finished difference Result 4731 states and 6951 transitions. [2018-12-08 23:39:17,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 23:39:17,435 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2018-12-08 23:39:17,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:17,442 INFO L225 Difference]: With dead ends: 4731 [2018-12-08 23:39:17,442 INFO L226 Difference]: Without dead ends: 4730 [2018-12-08 23:39:17,443 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-12-08 23:39:17,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4730 states. [2018-12-08 23:39:17,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4730 to 3463. [2018-12-08 23:39:17,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3463 states. [2018-12-08 23:39:17,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3463 states to 3463 states and 5051 transitions. [2018-12-08 23:39:17,498 INFO L78 Accepts]: Start accepts. Automaton has 3463 states and 5051 transitions. Word has length 37 [2018-12-08 23:39:17,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:17,498 INFO L480 AbstractCegarLoop]: Abstraction has 3463 states and 5051 transitions. [2018-12-08 23:39:17,498 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 23:39:17,498 INFO L276 IsEmpty]: Start isEmpty. Operand 3463 states and 5051 transitions. [2018-12-08 23:39:17,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-12-08 23:39:17,499 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:17,499 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:17,499 INFO L423 AbstractCegarLoop]: === Iteration 20 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:17,499 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:17,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1042968950, now seen corresponding path program 4 times [2018-12-08 23:39:17,500 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:17,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:17,500 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 23:39:17,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:17,501 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:17,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:17,532 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:17,533 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:17,533 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:17,533 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:17,533 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:17,533 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:17,533 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:39:17,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:17,539 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 23:39:17,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:17,548 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:17,552 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:17,553 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:17,591 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:17,605 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:17,606 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2018-12-08 23:39:17,606 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:17,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 23:39:17,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 23:39:17,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-12-08 23:39:17,606 INFO L87 Difference]: Start difference. First operand 3463 states and 5051 transitions. Second operand 7 states. [2018-12-08 23:39:17,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:17,677 INFO L93 Difference]: Finished difference Result 5330 states and 7888 transitions. [2018-12-08 23:39:17,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 23:39:17,677 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2018-12-08 23:39:17,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:17,687 INFO L225 Difference]: With dead ends: 5330 [2018-12-08 23:39:17,687 INFO L226 Difference]: Without dead ends: 5328 [2018-12-08 23:39:17,689 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-12-08 23:39:17,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5328 states. [2018-12-08 23:39:17,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5328 to 4381. [2018-12-08 23:39:17,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4381 states. [2018-12-08 23:39:17,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4381 states to 4381 states and 6357 transitions. [2018-12-08 23:39:17,760 INFO L78 Accepts]: Start accepts. Automaton has 4381 states and 6357 transitions. Word has length 39 [2018-12-08 23:39:17,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:17,761 INFO L480 AbstractCegarLoop]: Abstraction has 4381 states and 6357 transitions. [2018-12-08 23:39:17,761 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 23:39:17,761 INFO L276 IsEmpty]: Start isEmpty. Operand 4381 states and 6357 transitions. [2018-12-08 23:39:17,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-12-08 23:39:17,761 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:17,761 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:17,762 INFO L423 AbstractCegarLoop]: === Iteration 21 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:17,762 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:17,762 INFO L82 PathProgramCache]: Analyzing trace with hash 535132776, now seen corresponding path program 3 times [2018-12-08 23:39:17,762 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:17,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:17,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:17,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:17,763 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:17,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:17,787 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:17,787 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:17,788 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:17,788 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:17,788 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:17,788 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:17,788 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:39:17,798 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-08 23:39:17,798 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-08 23:39:17,807 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-08 23:39:17,807 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 23:39:17,808 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:17,812 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:17,812 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:17,833 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:17,852 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:17,852 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2018-12-08 23:39:17,852 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:17,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 23:39:17,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 23:39:17,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-12-08 23:39:17,853 INFO L87 Difference]: Start difference. First operand 4381 states and 6357 transitions. Second operand 6 states. [2018-12-08 23:39:17,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:17,941 INFO L93 Difference]: Finished difference Result 7073 states and 10429 transitions. [2018-12-08 23:39:17,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 23:39:17,941 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2018-12-08 23:39:17,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:17,949 INFO L225 Difference]: With dead ends: 7073 [2018-12-08 23:39:17,949 INFO L226 Difference]: Without dead ends: 7071 [2018-12-08 23:39:17,951 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-12-08 23:39:17,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7071 states. [2018-12-08 23:39:18,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7071 to 5733. [2018-12-08 23:39:18,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5733 states. [2018-12-08 23:39:18,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5733 states to 5733 states and 8269 transitions. [2018-12-08 23:39:18,026 INFO L78 Accepts]: Start accepts. Automaton has 5733 states and 8269 transitions. Word has length 40 [2018-12-08 23:39:18,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:18,026 INFO L480 AbstractCegarLoop]: Abstraction has 5733 states and 8269 transitions. [2018-12-08 23:39:18,026 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 23:39:18,026 INFO L276 IsEmpty]: Start isEmpty. Operand 5733 states and 8269 transitions. [2018-12-08 23:39:18,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-12-08 23:39:18,026 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:18,027 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:18,027 INFO L423 AbstractCegarLoop]: === Iteration 22 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:18,027 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:18,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1865791691, now seen corresponding path program 4 times [2018-12-08 23:39:18,027 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:18,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:18,028 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 23:39:18,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:18,028 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:18,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:18,049 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:18,049 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:18,050 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:18,050 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:18,050 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:18,050 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:18,050 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:39:18,057 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:18,057 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 23:39:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:18,065 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:18,068 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:18,068 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:18,117 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:18,131 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:18,131 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2018-12-08 23:39:18,131 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:18,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 23:39:18,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 23:39:18,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-12-08 23:39:18,132 INFO L87 Difference]: Start difference. First operand 5733 states and 8269 transitions. Second operand 7 states. [2018-12-08 23:39:18,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:18,238 INFO L93 Difference]: Finished difference Result 8442 states and 12279 transitions. [2018-12-08 23:39:18,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 23:39:18,238 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2018-12-08 23:39:18,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:18,247 INFO L225 Difference]: With dead ends: 8442 [2018-12-08 23:39:18,247 INFO L226 Difference]: Without dead ends: 8441 [2018-12-08 23:39:18,251 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-12-08 23:39:18,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8441 states. [2018-12-08 23:39:18,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8441 to 6241. [2018-12-08 23:39:18,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6241 states. [2018-12-08 23:39:18,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6241 states to 6241 states and 9003 transitions. [2018-12-08 23:39:18,381 INFO L78 Accepts]: Start accepts. Automaton has 6241 states and 9003 transitions. Word has length 45 [2018-12-08 23:39:18,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:18,381 INFO L480 AbstractCegarLoop]: Abstraction has 6241 states and 9003 transitions. [2018-12-08 23:39:18,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 23:39:18,381 INFO L276 IsEmpty]: Start isEmpty. Operand 6241 states and 9003 transitions. [2018-12-08 23:39:18,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-12-08 23:39:18,383 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:18,383 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:18,383 INFO L423 AbstractCegarLoop]: === Iteration 23 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:18,383 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:18,383 INFO L82 PathProgramCache]: Analyzing trace with hash 702806639, now seen corresponding path program 3 times [2018-12-08 23:39:18,383 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:18,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:18,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:18,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:18,385 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:18,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:18,415 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:18,415 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:18,415 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:18,415 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:18,415 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:18,415 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:18,416 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:39:18,424 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-08 23:39:18,424 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-08 23:39:18,433 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-08 23:39:18,433 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 23:39:18,434 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:18,438 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:18,438 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:18,469 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:18,489 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:18,489 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2018-12-08 23:39:18,489 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:18,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 23:39:18,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 23:39:18,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-12-08 23:39:18,489 INFO L87 Difference]: Start difference. First operand 6241 states and 9003 transitions. Second operand 6 states. [2018-12-08 23:39:18,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:18,578 INFO L93 Difference]: Finished difference Result 9588 states and 13947 transitions. [2018-12-08 23:39:18,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 23:39:18,578 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2018-12-08 23:39:18,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:18,593 INFO L225 Difference]: With dead ends: 9588 [2018-12-08 23:39:18,593 INFO L226 Difference]: Without dead ends: 9587 [2018-12-08 23:39:18,598 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-12-08 23:39:18,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9587 states. [2018-12-08 23:39:18,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9587 to 7029. [2018-12-08 23:39:18,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7029 states. [2018-12-08 23:39:18,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7029 states to 7029 states and 10135 transitions. [2018-12-08 23:39:18,700 INFO L78 Accepts]: Start accepts. Automaton has 7029 states and 10135 transitions. Word has length 45 [2018-12-08 23:39:18,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:18,700 INFO L480 AbstractCegarLoop]: Abstraction has 7029 states and 10135 transitions. [2018-12-08 23:39:18,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 23:39:18,700 INFO L276 IsEmpty]: Start isEmpty. Operand 7029 states and 10135 transitions. [2018-12-08 23:39:18,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-08 23:39:18,701 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:18,701 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:18,701 INFO L423 AbstractCegarLoop]: === Iteration 24 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:18,701 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:18,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1845802966, now seen corresponding path program 5 times [2018-12-08 23:39:18,702 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:18,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:18,702 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 23:39:18,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:18,702 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:18,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:18,746 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:18,746 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:18,746 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:18,746 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:18,746 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:18,746 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:18,746 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:39:18,754 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-08 23:39:18,754 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-08 23:39:18,763 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2018-12-08 23:39:18,763 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 23:39:18,764 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:18,767 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:18,767 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:18,807 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:18,822 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:18,822 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2018-12-08 23:39:18,822 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:18,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 23:39:18,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 23:39:18,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2018-12-08 23:39:18,823 INFO L87 Difference]: Start difference. First operand 7029 states and 10135 transitions. Second operand 8 states. [2018-12-08 23:39:18,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:18,922 INFO L93 Difference]: Finished difference Result 10385 states and 15210 transitions. [2018-12-08 23:39:18,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 23:39:18,922 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 46 [2018-12-08 23:39:18,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:18,931 INFO L225 Difference]: With dead ends: 10385 [2018-12-08 23:39:18,931 INFO L226 Difference]: Without dead ends: 10383 [2018-12-08 23:39:18,934 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2018-12-08 23:39:18,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10383 states. [2018-12-08 23:39:19,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10383 to 8669. [2018-12-08 23:39:19,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8669 states. [2018-12-08 23:39:19,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8669 states to 8669 states and 12442 transitions. [2018-12-08 23:39:19,046 INFO L78 Accepts]: Start accepts. Automaton has 8669 states and 12442 transitions. Word has length 46 [2018-12-08 23:39:19,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:19,046 INFO L480 AbstractCegarLoop]: Abstraction has 8669 states and 12442 transitions. [2018-12-08 23:39:19,046 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 23:39:19,047 INFO L276 IsEmpty]: Start isEmpty. Operand 8669 states and 12442 transitions. [2018-12-08 23:39:19,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-12-08 23:39:19,048 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:19,048 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:19,048 INFO L423 AbstractCegarLoop]: === Iteration 25 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:19,048 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:19,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1310627277, now seen corresponding path program 4 times [2018-12-08 23:39:19,049 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:19,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:19,049 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 23:39:19,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:19,050 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:19,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:19,101 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:19,101 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:19,101 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:19,101 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:19,101 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:19,101 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:19,101 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:39:19,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:19,107 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 23:39:19,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:19,114 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:19,117 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:19,117 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:19,146 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:19,160 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:19,160 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2018-12-08 23:39:19,160 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:19,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 23:39:19,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 23:39:19,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-12-08 23:39:19,161 INFO L87 Difference]: Start difference. First operand 8669 states and 12442 transitions. Second operand 7 states. [2018-12-08 23:39:19,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:19,279 INFO L93 Difference]: Finished difference Result 13316 states and 19433 transitions. [2018-12-08 23:39:19,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 23:39:19,279 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 49 [2018-12-08 23:39:19,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:19,295 INFO L225 Difference]: With dead ends: 13316 [2018-12-08 23:39:19,295 INFO L226 Difference]: Without dead ends: 13314 [2018-12-08 23:39:19,299 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-12-08 23:39:19,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13314 states. [2018-12-08 23:39:19,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13314 to 10971. [2018-12-08 23:39:19,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10971 states. [2018-12-08 23:39:19,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10971 states to 10971 states and 15661 transitions. [2018-12-08 23:39:19,450 INFO L78 Accepts]: Start accepts. Automaton has 10971 states and 15661 transitions. Word has length 49 [2018-12-08 23:39:19,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:19,450 INFO L480 AbstractCegarLoop]: Abstraction has 10971 states and 15661 transitions. [2018-12-08 23:39:19,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 23:39:19,450 INFO L276 IsEmpty]: Start isEmpty. Operand 10971 states and 15661 transitions. [2018-12-08 23:39:19,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-12-08 23:39:19,451 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:19,451 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:19,451 INFO L423 AbstractCegarLoop]: === Iteration 26 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:19,451 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:19,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1711194378, now seen corresponding path program 6 times [2018-12-08 23:39:19,452 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:19,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:19,452 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:19,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:19,453 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:19,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:19,499 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:19,499 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:19,499 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:19,500 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:19,500 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:19,500 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:19,500 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:39:19,508 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-08 23:39:19,508 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-08 23:39:19,515 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-08 23:39:19,515 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 23:39:19,516 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:19,520 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:19,520 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:19,575 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:19,590 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:19,590 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2018-12-08 23:39:19,590 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:19,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-08 23:39:19,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-08 23:39:19,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2018-12-08 23:39:19,591 INFO L87 Difference]: Start difference. First operand 10971 states and 15661 transitions. Second operand 9 states. [2018-12-08 23:39:19,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:19,730 INFO L93 Difference]: Finished difference Result 15626 states and 22669 transitions. [2018-12-08 23:39:19,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-08 23:39:19,731 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 53 [2018-12-08 23:39:19,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:19,741 INFO L225 Difference]: With dead ends: 15626 [2018-12-08 23:39:19,741 INFO L226 Difference]: Without dead ends: 15624 [2018-12-08 23:39:19,745 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2018-12-08 23:39:19,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15624 states. [2018-12-08 23:39:19,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15624 to 13095. [2018-12-08 23:39:19,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13095 states. [2018-12-08 23:39:19,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13095 states to 13095 states and 18613 transitions. [2018-12-08 23:39:19,909 INFO L78 Accepts]: Start accepts. Automaton has 13095 states and 18613 transitions. Word has length 53 [2018-12-08 23:39:19,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:19,909 INFO L480 AbstractCegarLoop]: Abstraction has 13095 states and 18613 transitions. [2018-12-08 23:39:19,909 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-08 23:39:19,909 INFO L276 IsEmpty]: Start isEmpty. Operand 13095 states and 18613 transitions. [2018-12-08 23:39:19,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-12-08 23:39:19,911 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:19,911 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:19,911 INFO L423 AbstractCegarLoop]: === Iteration 27 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:19,911 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:19,912 INFO L82 PathProgramCache]: Analyzing trace with hash -434547425, now seen corresponding path program 5 times [2018-12-08 23:39:19,912 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:19,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:19,912 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 23:39:19,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:19,913 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:19,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:19,971 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:19,971 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:19,971 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:19,971 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:19,971 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:19,971 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:19,971 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:39:19,979 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-08 23:39:19,979 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-08 23:39:19,990 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2018-12-08 23:39:19,990 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 23:39:19,991 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:19,996 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:19,996 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:20,047 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:20,062 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:20,062 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2018-12-08 23:39:20,062 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:20,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 23:39:20,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 23:39:20,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2018-12-08 23:39:20,063 INFO L87 Difference]: Start difference. First operand 13095 states and 18613 transitions. Second operand 8 states. [2018-12-08 23:39:20,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:20,273 INFO L93 Difference]: Finished difference Result 19894 states and 28525 transitions. [2018-12-08 23:39:20,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 23:39:20,273 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2018-12-08 23:39:20,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:20,287 INFO L225 Difference]: With dead ends: 19894 [2018-12-08 23:39:20,287 INFO L226 Difference]: Without dead ends: 19893 [2018-12-08 23:39:20,292 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2018-12-08 23:39:20,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19893 states. [2018-12-08 23:39:20,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19893 to 14133. [2018-12-08 23:39:20,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14133 states. [2018-12-08 23:39:20,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14133 states to 14133 states and 20101 transitions. [2018-12-08 23:39:20,482 INFO L78 Accepts]: Start accepts. Automaton has 14133 states and 20101 transitions. Word has length 53 [2018-12-08 23:39:20,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:20,482 INFO L480 AbstractCegarLoop]: Abstraction has 14133 states and 20101 transitions. [2018-12-08 23:39:20,482 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 23:39:20,482 INFO L276 IsEmpty]: Start isEmpty. Operand 14133 states and 20101 transitions. [2018-12-08 23:39:20,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-12-08 23:39:20,483 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:20,483 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:20,483 INFO L423 AbstractCegarLoop]: === Iteration 28 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:20,483 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:20,483 INFO L82 PathProgramCache]: Analyzing trace with hash 941207746, now seen corresponding path program 4 times [2018-12-08 23:39:20,483 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:20,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:20,484 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 23:39:20,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:20,484 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:20,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:20,520 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:20,520 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:20,520 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:20,520 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:20,520 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:20,520 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:20,520 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:39:20,528 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:20,528 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 23:39:20,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:20,535 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:20,538 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:20,538 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:20,570 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:20,584 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:20,585 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2018-12-08 23:39:20,585 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:20,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 23:39:20,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 23:39:20,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-12-08 23:39:20,585 INFO L87 Difference]: Start difference. First operand 14133 states and 20101 transitions. Second operand 7 states. [2018-12-08 23:39:20,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:20,762 INFO L93 Difference]: Finished difference Result 20778 states and 29841 transitions. [2018-12-08 23:39:20,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 23:39:20,763 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 55 [2018-12-08 23:39:20,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:20,776 INFO L225 Difference]: With dead ends: 20778 [2018-12-08 23:39:20,777 INFO L226 Difference]: Without dead ends: 20777 [2018-12-08 23:39:20,782 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-12-08 23:39:20,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20777 states. [2018-12-08 23:39:20,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20777 to 15385. [2018-12-08 23:39:20,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15385 states. [2018-12-08 23:39:21,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15385 states to 15385 states and 21885 transitions. [2018-12-08 23:39:21,010 INFO L78 Accepts]: Start accepts. Automaton has 15385 states and 21885 transitions. Word has length 55 [2018-12-08 23:39:21,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:21,010 INFO L480 AbstractCegarLoop]: Abstraction has 15385 states and 21885 transitions. [2018-12-08 23:39:21,010 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 23:39:21,010 INFO L276 IsEmpty]: Start isEmpty. Operand 15385 states and 21885 transitions. [2018-12-08 23:39:21,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-12-08 23:39:21,011 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:21,012 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:21,012 INFO L423 AbstractCegarLoop]: === Iteration 29 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:21,012 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:21,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1897860808, now seen corresponding path program 5 times [2018-12-08 23:39:21,012 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:21,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:21,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:21,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:21,013 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:21,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:21,050 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:21,051 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:21,051 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:21,051 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:21,051 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:21,051 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:21,051 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:39:21,058 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-08 23:39:21,058 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-08 23:39:21,069 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2018-12-08 23:39:21,069 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 23:39:21,070 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:21,075 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:21,075 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:21,126 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:21,141 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:21,141 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2018-12-08 23:39:21,141 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:21,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 23:39:21,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 23:39:21,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2018-12-08 23:39:21,142 INFO L87 Difference]: Start difference. First operand 15385 states and 21885 transitions. Second operand 8 states. [2018-12-08 23:39:21,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:21,336 INFO L93 Difference]: Finished difference Result 22701 states and 32845 transitions. [2018-12-08 23:39:21,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 23:39:21,336 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2018-12-08 23:39:21,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:21,352 INFO L225 Difference]: With dead ends: 22701 [2018-12-08 23:39:21,352 INFO L226 Difference]: Without dead ends: 22699 [2018-12-08 23:39:21,359 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2018-12-08 23:39:21,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22699 states. [2018-12-08 23:39:21,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22699 to 18977. [2018-12-08 23:39:21,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18977 states. [2018-12-08 23:39:21,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18977 states to 18977 states and 26868 transitions. [2018-12-08 23:39:21,607 INFO L78 Accepts]: Start accepts. Automaton has 18977 states and 26868 transitions. Word has length 58 [2018-12-08 23:39:21,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:21,607 INFO L480 AbstractCegarLoop]: Abstraction has 18977 states and 26868 transitions. [2018-12-08 23:39:21,607 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 23:39:21,607 INFO L276 IsEmpty]: Start isEmpty. Operand 18977 states and 26868 transitions. [2018-12-08 23:39:21,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-12-08 23:39:21,608 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:21,608 INFO L402 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:21,609 INFO L423 AbstractCegarLoop]: === Iteration 30 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:21,609 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:21,609 INFO L82 PathProgramCache]: Analyzing trace with hash 1695921494, now seen corresponding path program 7 times [2018-12-08 23:39:21,609 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:21,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:21,610 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 23:39:21,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:21,610 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:21,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:21,655 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:21,655 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:21,655 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:21,655 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:21,655 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:21,655 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:21,655 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:39:21,664 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:21,664 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 23:39:21,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:21,677 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:21,680 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:21,680 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:21,737 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:21,752 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:21,752 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2018-12-08 23:39:21,752 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:21,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-08 23:39:21,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-08 23:39:21,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2018-12-08 23:39:21,752 INFO L87 Difference]: Start difference. First operand 18977 states and 26868 transitions. Second operand 10 states. [2018-12-08 23:39:21,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:21,973 INFO L93 Difference]: Finished difference Result 26255 states and 37782 transitions. [2018-12-08 23:39:21,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-08 23:39:21,973 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 60 [2018-12-08 23:39:21,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:21,994 INFO L225 Difference]: With dead ends: 26255 [2018-12-08 23:39:21,994 INFO L226 Difference]: Without dead ends: 26253 [2018-12-08 23:39:21,999 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2018-12-08 23:39:22,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26253 states. [2018-12-08 23:39:22,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26253 to 22315. [2018-12-08 23:39:22,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22315 states. [2018-12-08 23:39:22,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22315 states to 22315 states and 31477 transitions. [2018-12-08 23:39:22,319 INFO L78 Accepts]: Start accepts. Automaton has 22315 states and 31477 transitions. Word has length 60 [2018-12-08 23:39:22,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:22,319 INFO L480 AbstractCegarLoop]: Abstraction has 22315 states and 31477 transitions. [2018-12-08 23:39:22,319 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-08 23:39:22,319 INFO L276 IsEmpty]: Start isEmpty. Operand 22315 states and 31477 transitions. [2018-12-08 23:39:22,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-12-08 23:39:22,320 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:22,320 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:22,320 INFO L423 AbstractCegarLoop]: === Iteration 31 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:22,321 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:22,321 INFO L82 PathProgramCache]: Analyzing trace with hash 2090391817, now seen corresponding path program 6 times [2018-12-08 23:39:22,321 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:22,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:22,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:22,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:22,321 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:22,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:22,371 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:22,372 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:22,372 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:22,372 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:22,372 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:22,372 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:22,372 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:39:22,378 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-08 23:39:22,378 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-08 23:39:22,389 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-08 23:39:22,389 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 23:39:22,390 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:22,394 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:22,394 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:22,449 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:22,464 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:22,464 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2018-12-08 23:39:22,464 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:22,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-08 23:39:22,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-08 23:39:22,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2018-12-08 23:39:22,465 INFO L87 Difference]: Start difference. First operand 22315 states and 31477 transitions. Second operand 9 states. [2018-12-08 23:39:22,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:22,727 INFO L93 Difference]: Finished difference Result 32959 states and 46936 transitions. [2018-12-08 23:39:22,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-08 23:39:22,727 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 61 [2018-12-08 23:39:22,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:22,751 INFO L225 Difference]: With dead ends: 32959 [2018-12-08 23:39:22,751 INFO L226 Difference]: Without dead ends: 32958 [2018-12-08 23:39:22,757 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2018-12-08 23:39:22,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32958 states. [2018-12-08 23:39:23,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32958 to 23709. [2018-12-08 23:39:23,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23709 states. [2018-12-08 23:39:23,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23709 states to 23709 states and 33466 transitions. [2018-12-08 23:39:23,146 INFO L78 Accepts]: Start accepts. Automaton has 23709 states and 33466 transitions. Word has length 61 [2018-12-08 23:39:23,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:23,146 INFO L480 AbstractCegarLoop]: Abstraction has 23709 states and 33466 transitions. [2018-12-08 23:39:23,146 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-08 23:39:23,146 INFO L276 IsEmpty]: Start isEmpty. Operand 23709 states and 33466 transitions. [2018-12-08 23:39:23,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-12-08 23:39:23,147 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:23,147 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:23,148 INFO L423 AbstractCegarLoop]: === Iteration 32 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:23,148 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:23,148 INFO L82 PathProgramCache]: Analyzing trace with hash -1521886379, now seen corresponding path program 5 times [2018-12-08 23:39:23,148 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:23,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:23,148 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 23:39:23,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:23,149 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:23,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:23,186 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:23,186 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:23,186 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:23,186 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:23,186 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:23,186 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:23,186 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:39:23,192 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-08 23:39:23,192 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-08 23:39:23,210 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2018-12-08 23:39:23,210 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 23:39:23,211 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:23,215 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:23,215 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:23,261 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:23,276 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:23,276 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2018-12-08 23:39:23,276 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:23,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 23:39:23,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 23:39:23,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2018-12-08 23:39:23,276 INFO L87 Difference]: Start difference. First operand 23709 states and 33466 transitions. Second operand 8 states. [2018-12-08 23:39:23,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:23,536 INFO L93 Difference]: Finished difference Result 33673 states and 48022 transitions. [2018-12-08 23:39:23,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 23:39:23,537 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2018-12-08 23:39:23,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:23,562 INFO L225 Difference]: With dead ends: 33673 [2018-12-08 23:39:23,562 INFO L226 Difference]: Without dead ends: 33672 [2018-12-08 23:39:23,567 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2018-12-08 23:39:23,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33672 states. [2018-12-08 23:39:23,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33672 to 25273. [2018-12-08 23:39:23,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25273 states. [2018-12-08 23:39:23,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25273 states to 25273 states and 35688 transitions. [2018-12-08 23:39:23,916 INFO L78 Accepts]: Start accepts. Automaton has 25273 states and 35688 transitions. Word has length 65 [2018-12-08 23:39:23,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:23,916 INFO L480 AbstractCegarLoop]: Abstraction has 25273 states and 35688 transitions. [2018-12-08 23:39:23,917 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 23:39:23,917 INFO L276 IsEmpty]: Start isEmpty. Operand 25273 states and 35688 transitions. [2018-12-08 23:39:23,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-12-08 23:39:23,918 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:23,918 INFO L402 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:23,919 INFO L423 AbstractCegarLoop]: === Iteration 33 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:23,919 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:23,919 INFO L82 PathProgramCache]: Analyzing trace with hash -690121846, now seen corresponding path program 8 times [2018-12-08 23:39:23,919 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:23,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:23,920 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 23:39:23,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:23,920 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:23,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:23,960 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:23,960 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:23,960 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:23,960 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:23,960 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:23,960 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:23,960 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:39:23,971 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-08 23:39:23,971 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-08 23:39:23,986 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2018-12-08 23:39:23,986 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 23:39:23,987 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:23,994 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:23,994 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:24,081 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:24,096 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:24,096 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2018-12-08 23:39:24,096 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:24,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-08 23:39:24,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-08 23:39:24,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2018-12-08 23:39:24,097 INFO L87 Difference]: Start difference. First operand 25273 states and 35688 transitions. Second operand 11 states. [2018-12-08 23:39:24,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:24,464 INFO L93 Difference]: Finished difference Result 34134 states and 48972 transitions. [2018-12-08 23:39:24,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-08 23:39:24,464 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 67 [2018-12-08 23:39:24,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:24,488 INFO L225 Difference]: With dead ends: 34134 [2018-12-08 23:39:24,488 INFO L226 Difference]: Without dead ends: 34132 [2018-12-08 23:39:24,491 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2018-12-08 23:39:24,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34132 states. [2018-12-08 23:39:24,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34132 to 29349. [2018-12-08 23:39:24,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29349 states. [2018-12-08 23:39:24,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29349 states to 29349 states and 41310 transitions. [2018-12-08 23:39:24,859 INFO L78 Accepts]: Start accepts. Automaton has 29349 states and 41310 transitions. Word has length 67 [2018-12-08 23:39:24,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:24,859 INFO L480 AbstractCegarLoop]: Abstraction has 29349 states and 41310 transitions. [2018-12-08 23:39:24,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-08 23:39:24,859 INFO L276 IsEmpty]: Start isEmpty. Operand 29349 states and 41310 transitions. [2018-12-08 23:39:24,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-12-08 23:39:24,861 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:24,861 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:24,861 INFO L423 AbstractCegarLoop]: === Iteration 34 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:24,861 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:24,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1044856365, now seen corresponding path program 6 times [2018-12-08 23:39:24,862 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:24,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:24,862 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 23:39:24,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:24,862 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:24,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:24,906 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:24,906 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:24,906 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:24,906 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:24,906 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:24,907 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:24,907 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:39:24,913 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-08 23:39:24,913 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-08 23:39:24,922 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-08 23:39:24,922 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 23:39:24,923 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:24,926 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:24,926 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:24,968 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:24,983 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:24,983 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2018-12-08 23:39:24,983 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:24,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-08 23:39:24,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-08 23:39:24,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2018-12-08 23:39:24,984 INFO L87 Difference]: Start difference. First operand 29349 states and 41310 transitions. Second operand 9 states. [2018-12-08 23:39:25,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:25,293 INFO L93 Difference]: Finished difference Result 41884 states and 59975 transitions. [2018-12-08 23:39:25,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-08 23:39:25,294 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2018-12-08 23:39:25,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:25,326 INFO L225 Difference]: With dead ends: 41884 [2018-12-08 23:39:25,326 INFO L226 Difference]: Without dead ends: 41882 [2018-12-08 23:39:25,334 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2018-12-08 23:39:25,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41882 states. [2018-12-08 23:39:25,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41882 to 35469. [2018-12-08 23:39:25,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35469 states. [2018-12-08 23:39:25,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35469 states to 35469 states and 49722 transitions. [2018-12-08 23:39:25,875 INFO L78 Accepts]: Start accepts. Automaton has 35469 states and 49722 transitions. Word has length 67 [2018-12-08 23:39:25,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:25,875 INFO L480 AbstractCegarLoop]: Abstraction has 35469 states and 49722 transitions. [2018-12-08 23:39:25,875 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-08 23:39:25,875 INFO L276 IsEmpty]: Start isEmpty. Operand 35469 states and 49722 transitions. [2018-12-08 23:39:25,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-12-08 23:39:25,877 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:25,877 INFO L402 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:25,877 INFO L423 AbstractCegarLoop]: === Iteration 35 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:25,877 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:25,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1351429389, now seen corresponding path program 7 times [2018-12-08 23:39:25,877 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:25,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:25,878 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 23:39:25,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:25,878 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:25,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:25,938 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:25,938 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:25,938 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:25,938 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:25,938 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:25,938 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:25,938 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:39:25,946 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:25,946 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 23:39:25,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:25,956 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:25,960 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:25,961 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:26,029 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:26,043 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:26,043 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2018-12-08 23:39:26,044 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:26,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-08 23:39:26,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-08 23:39:26,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2018-12-08 23:39:26,044 INFO L87 Difference]: Start difference. First operand 35469 states and 49722 transitions. Second operand 10 states. [2018-12-08 23:39:26,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:26,429 INFO L93 Difference]: Finished difference Result 51133 states and 72401 transitions. [2018-12-08 23:39:26,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-08 23:39:26,429 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 69 [2018-12-08 23:39:26,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:26,472 INFO L225 Difference]: With dead ends: 51133 [2018-12-08 23:39:26,472 INFO L226 Difference]: Without dead ends: 51132 [2018-12-08 23:39:26,481 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2018-12-08 23:39:26,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51132 states. [2018-12-08 23:39:27,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51132 to 37265. [2018-12-08 23:39:27,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37265 states. [2018-12-08 23:39:27,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37265 states to 37265 states and 52275 transitions. [2018-12-08 23:39:27,054 INFO L78 Accepts]: Start accepts. Automaton has 37265 states and 52275 transitions. Word has length 69 [2018-12-08 23:39:27,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:27,054 INFO L480 AbstractCegarLoop]: Abstraction has 37265 states and 52275 transitions. [2018-12-08 23:39:27,054 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-08 23:39:27,054 INFO L276 IsEmpty]: Start isEmpty. Operand 37265 states and 52275 transitions. [2018-12-08 23:39:27,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-12-08 23:39:27,057 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:27,057 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:27,058 INFO L423 AbstractCegarLoop]: === Iteration 36 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:27,058 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:27,058 INFO L82 PathProgramCache]: Analyzing trace with hash -2049109290, now seen corresponding path program 9 times [2018-12-08 23:39:27,058 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:27,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:27,058 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:27,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:27,058 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:27,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:27,107 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:27,107 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:27,107 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:27,107 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:27,107 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:27,108 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:27,108 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:39:27,214 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-08 23:39:27,214 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-08 23:39:27,226 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-08 23:39:27,226 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 23:39:27,227 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:27,231 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:27,231 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:27,314 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:27,328 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:27,328 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2018-12-08 23:39:27,328 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:27,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-08 23:39:27,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-08 23:39:27,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2018-12-08 23:39:27,329 INFO L87 Difference]: Start difference. First operand 37265 states and 52275 transitions. Second operand 12 states. [2018-12-08 23:39:27,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:27,711 INFO L93 Difference]: Finished difference Result 49303 states and 70258 transitions. [2018-12-08 23:39:27,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-08 23:39:27,711 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 74 [2018-12-08 23:39:27,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:27,752 INFO L225 Difference]: With dead ends: 49303 [2018-12-08 23:39:27,753 INFO L226 Difference]: Without dead ends: 49301 [2018-12-08 23:39:27,760 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2018-12-08 23:39:27,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49301 states. [2018-12-08 23:39:28,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49301 to 42817. [2018-12-08 23:39:28,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42817 states. [2018-12-08 23:39:28,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42817 states to 42817 states and 59893 transitions. [2018-12-08 23:39:28,331 INFO L78 Accepts]: Start accepts. Automaton has 42817 states and 59893 transitions. Word has length 74 [2018-12-08 23:39:28,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:28,332 INFO L480 AbstractCegarLoop]: Abstraction has 42817 states and 59893 transitions. [2018-12-08 23:39:28,332 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-08 23:39:28,332 INFO L276 IsEmpty]: Start isEmpty. Operand 42817 states and 59893 transitions. [2018-12-08 23:39:28,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-12-08 23:39:28,334 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:28,334 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:28,334 INFO L423 AbstractCegarLoop]: === Iteration 37 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:28,334 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:28,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1528834600, now seen corresponding path program 6 times [2018-12-08 23:39:28,335 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:28,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:28,335 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 23:39:28,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:28,335 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:28,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:28,384 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:28,384 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:28,384 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:28,384 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:28,384 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:28,384 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:28,384 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:39:28,390 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-08 23:39:28,390 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-08 23:39:28,399 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-08 23:39:28,400 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 23:39:28,400 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:28,405 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:28,406 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:28,456 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:28,470 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:28,470 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2018-12-08 23:39:28,470 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:28,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-08 23:39:28,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-08 23:39:28,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2018-12-08 23:39:28,471 INFO L87 Difference]: Start difference. First operand 42817 states and 59893 transitions. Second operand 9 states. [2018-12-08 23:39:28,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:28,980 INFO L93 Difference]: Finished difference Result 59106 states and 83567 transitions. [2018-12-08 23:39:28,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-08 23:39:28,980 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 75 [2018-12-08 23:39:28,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:29,027 INFO L225 Difference]: With dead ends: 59106 [2018-12-08 23:39:29,027 INFO L226 Difference]: Without dead ends: 59105 [2018-12-08 23:39:29,036 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2018-12-08 23:39:29,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59105 states. [2018-12-08 23:39:29,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59105 to 45009. [2018-12-08 23:39:29,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45009 states. [2018-12-08 23:39:29,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45009 states to 45009 states and 62991 transitions. [2018-12-08 23:39:29,651 INFO L78 Accepts]: Start accepts. Automaton has 45009 states and 62991 transitions. Word has length 75 [2018-12-08 23:39:29,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:29,651 INFO L480 AbstractCegarLoop]: Abstraction has 45009 states and 62991 transitions. [2018-12-08 23:39:29,651 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-08 23:39:29,651 INFO L276 IsEmpty]: Start isEmpty. Operand 45009 states and 62991 transitions. [2018-12-08 23:39:29,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-12-08 23:39:29,654 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:29,654 INFO L402 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:29,654 INFO L423 AbstractCegarLoop]: === Iteration 38 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:29,654 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:29,654 INFO L82 PathProgramCache]: Analyzing trace with hash -427799768, now seen corresponding path program 7 times [2018-12-08 23:39:29,654 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:29,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:29,655 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 23:39:29,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:29,655 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:29,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:29,726 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:29,726 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:29,726 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:29,727 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:29,727 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:29,727 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:29,727 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:39:29,732 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:29,732 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 23:39:29,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:29,742 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:29,746 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:29,746 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:29,801 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:29,815 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:29,815 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2018-12-08 23:39:29,815 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:29,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-08 23:39:29,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-08 23:39:29,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2018-12-08 23:39:29,816 INFO L87 Difference]: Start difference. First operand 45009 states and 62991 transitions. Second operand 10 states. [2018-12-08 23:39:30,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:30,290 INFO L93 Difference]: Finished difference Result 62469 states and 88924 transitions. [2018-12-08 23:39:30,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-08 23:39:30,290 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 76 [2018-12-08 23:39:30,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:30,345 INFO L225 Difference]: With dead ends: 62469 [2018-12-08 23:39:30,345 INFO L226 Difference]: Without dead ends: 62467 [2018-12-08 23:39:30,356 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2018-12-08 23:39:30,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62467 states. [2018-12-08 23:39:31,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62467 to 53493. [2018-12-08 23:39:31,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53493 states. [2018-12-08 23:39:31,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53493 states to 53493 states and 74602 transitions. [2018-12-08 23:39:31,199 INFO L78 Accepts]: Start accepts. Automaton has 53493 states and 74602 transitions. Word has length 76 [2018-12-08 23:39:31,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:31,199 INFO L480 AbstractCegarLoop]: Abstraction has 53493 states and 74602 transitions. [2018-12-08 23:39:31,199 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-08 23:39:31,199 INFO L276 IsEmpty]: Start isEmpty. Operand 53493 states and 74602 transitions. [2018-12-08 23:39:31,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-12-08 23:39:31,202 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:31,202 INFO L402 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:31,203 INFO L423 AbstractCegarLoop]: === Iteration 39 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:31,203 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:31,203 INFO L82 PathProgramCache]: Analyzing trace with hash 265372381, now seen corresponding path program 8 times [2018-12-08 23:39:31,203 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:31,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:31,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:31,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:31,203 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:31,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:31,246 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:31,246 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:31,246 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:31,246 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:31,246 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:31,246 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:31,246 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:39:31,253 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-08 23:39:31,253 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-08 23:39:31,266 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2018-12-08 23:39:31,266 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 23:39:31,267 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:31,272 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:31,273 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:31,367 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:31,382 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:31,382 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2018-12-08 23:39:31,382 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:31,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-08 23:39:31,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-08 23:39:31,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2018-12-08 23:39:31,382 INFO L87 Difference]: Start difference. First operand 53493 states and 74602 transitions. Second operand 11 states. [2018-12-08 23:39:31,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:31,940 INFO L93 Difference]: Finished difference Result 75502 states and 106384 transitions. [2018-12-08 23:39:31,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-08 23:39:31,941 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 77 [2018-12-08 23:39:31,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:32,005 INFO L225 Difference]: With dead ends: 75502 [2018-12-08 23:39:32,006 INFO L226 Difference]: Without dead ends: 75501 [2018-12-08 23:39:32,020 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2018-12-08 23:39:32,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75501 states. [2018-12-08 23:39:32,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75501 to 55737. [2018-12-08 23:39:32,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55737 states. [2018-12-08 23:39:32,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55737 states to 55737 states and 77782 transitions. [2018-12-08 23:39:32,878 INFO L78 Accepts]: Start accepts. Automaton has 55737 states and 77782 transitions. Word has length 77 [2018-12-08 23:39:32,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:32,878 INFO L480 AbstractCegarLoop]: Abstraction has 55737 states and 77782 transitions. [2018-12-08 23:39:32,878 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-08 23:39:32,878 INFO L276 IsEmpty]: Start isEmpty. Operand 55737 states and 77782 transitions. [2018-12-08 23:39:32,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-12-08 23:39:32,881 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:32,881 INFO L402 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:32,882 INFO L423 AbstractCegarLoop]: === Iteration 40 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:32,882 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:32,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1444546058, now seen corresponding path program 10 times [2018-12-08 23:39:32,882 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:32,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:32,882 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 23:39:32,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:32,882 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:32,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:32,959 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:32,959 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:32,959 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:32,959 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:32,959 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:32,959 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:32,960 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:39:33,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:33,025 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 23:39:33,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:33,037 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:33,041 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:33,042 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:33,136 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:33,150 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:33,150 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2018-12-08 23:39:33,150 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:33,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-08 23:39:33,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-08 23:39:33,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2018-12-08 23:39:33,151 INFO L87 Difference]: Start difference. First operand 55737 states and 77782 transitions. Second operand 13 states. [2018-12-08 23:39:33,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:33,680 INFO L93 Difference]: Finished difference Result 72432 states and 102654 transitions. [2018-12-08 23:39:33,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-08 23:39:33,680 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 81 [2018-12-08 23:39:33,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:33,742 INFO L225 Difference]: With dead ends: 72432 [2018-12-08 23:39:33,742 INFO L226 Difference]: Without dead ends: 72430 [2018-12-08 23:39:33,755 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2018-12-08 23:39:33,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72430 states. [2018-12-08 23:39:34,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72430 to 63455. [2018-12-08 23:39:34,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63455 states. [2018-12-08 23:39:34,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63455 states to 63455 states and 88331 transitions. [2018-12-08 23:39:34,646 INFO L78 Accepts]: Start accepts. Automaton has 63455 states and 88331 transitions. Word has length 81 [2018-12-08 23:39:34,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:34,646 INFO L480 AbstractCegarLoop]: Abstraction has 63455 states and 88331 transitions. [2018-12-08 23:39:34,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-08 23:39:34,646 INFO L276 IsEmpty]: Start isEmpty. Operand 63455 states and 88331 transitions. [2018-12-08 23:39:34,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-12-08 23:39:34,650 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:34,650 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:34,650 INFO L423 AbstractCegarLoop]: === Iteration 41 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:34,650 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:34,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1692281031, now seen corresponding path program 9 times [2018-12-08 23:39:34,650 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:34,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:34,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:34,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:34,651 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:34,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:34,708 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:34,708 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:34,708 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:34,708 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:34,709 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:34,709 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:34,709 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:39:34,715 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-08 23:39:34,715 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-08 23:39:34,726 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-08 23:39:34,726 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 23:39:34,727 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:34,733 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:34,733 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:34,816 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:34,830 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:34,831 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2018-12-08 23:39:34,831 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:34,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-08 23:39:34,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-08 23:39:34,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2018-12-08 23:39:34,831 INFO L87 Difference]: Start difference. First operand 63455 states and 88331 transitions. Second operand 12 states. [2018-12-08 23:39:35,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:35,491 INFO L93 Difference]: Finished difference Result 87915 states and 123650 transitions. [2018-12-08 23:39:35,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-08 23:39:35,491 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 85 [2018-12-08 23:39:35,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:35,576 INFO L225 Difference]: With dead ends: 87915 [2018-12-08 23:39:35,576 INFO L226 Difference]: Without dead ends: 87914 [2018-12-08 23:39:35,593 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2018-12-08 23:39:35,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87914 states. [2018-12-08 23:39:36,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87914 to 65699. [2018-12-08 23:39:36,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65699 states. [2018-12-08 23:39:36,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65699 states to 65699 states and 91511 transitions. [2018-12-08 23:39:36,697 INFO L78 Accepts]: Start accepts. Automaton has 65699 states and 91511 transitions. Word has length 85 [2018-12-08 23:39:36,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:36,697 INFO L480 AbstractCegarLoop]: Abstraction has 65699 states and 91511 transitions. [2018-12-08 23:39:36,697 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-08 23:39:36,697 INFO L276 IsEmpty]: Start isEmpty. Operand 65699 states and 91511 transitions. [2018-12-08 23:39:36,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-12-08 23:39:36,701 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:36,701 INFO L402 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:36,702 INFO L423 AbstractCegarLoop]: === Iteration 42 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:36,702 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:36,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1685753485, now seen corresponding path program 8 times [2018-12-08 23:39:36,702 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:36,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:36,702 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 23:39:36,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:36,702 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:36,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:36,750 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:36,751 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:36,751 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:36,751 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:36,751 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:36,751 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:36,751 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:39:36,757 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-08 23:39:36,757 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-08 23:39:36,771 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2018-12-08 23:39:36,771 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 23:39:36,772 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:36,776 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:36,776 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:36,839 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:36,853 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:36,853 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2018-12-08 23:39:36,853 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:36,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-08 23:39:36,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-08 23:39:36,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2018-12-08 23:39:36,854 INFO L87 Difference]: Start difference. First operand 65699 states and 91511 transitions. Second operand 11 states. [2018-12-08 23:39:37,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:37,518 INFO L93 Difference]: Finished difference Result 88656 states and 125565 transitions. [2018-12-08 23:39:37,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-08 23:39:37,518 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 85 [2018-12-08 23:39:37,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:37,595 INFO L225 Difference]: With dead ends: 88656 [2018-12-08 23:39:37,595 INFO L226 Difference]: Without dead ends: 88654 [2018-12-08 23:39:37,609 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2018-12-08 23:39:37,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88654 states. [2018-12-08 23:39:38,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88654 to 76293. [2018-12-08 23:39:38,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76293 states. [2018-12-08 23:39:38,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76293 states to 76293 states and 105928 transitions. [2018-12-08 23:39:38,803 INFO L78 Accepts]: Start accepts. Automaton has 76293 states and 105928 transitions. Word has length 85 [2018-12-08 23:39:38,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:38,803 INFO L480 AbstractCegarLoop]: Abstraction has 76293 states and 105928 transitions. [2018-12-08 23:39:38,803 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-08 23:39:38,803 INFO L276 IsEmpty]: Start isEmpty. Operand 76293 states and 105928 transitions. [2018-12-08 23:39:38,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-12-08 23:39:38,807 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:38,807 INFO L402 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:38,807 INFO L423 AbstractCegarLoop]: === Iteration 43 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:38,807 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:38,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1536406213, now seen corresponding path program 7 times [2018-12-08 23:39:38,807 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:38,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:38,808 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 23:39:38,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:38,808 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:38,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:38,849 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:38,849 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:38,849 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:38,849 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:38,849 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:38,849 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:38,849 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:39:38,855 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:38,855 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 23:39:38,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:38,865 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:38,871 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:38,871 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:38,930 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:38,944 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:38,944 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2018-12-08 23:39:38,944 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:38,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-08 23:39:38,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-08 23:39:38,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2018-12-08 23:39:38,945 INFO L87 Difference]: Start difference. First operand 76293 states and 105928 transitions. Second operand 10 states. [2018-12-08 23:39:39,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:39,770 INFO L93 Difference]: Finished difference Result 109927 states and 154225 transitions. [2018-12-08 23:39:39,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-08 23:39:39,771 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2018-12-08 23:39:39,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:39,873 INFO L225 Difference]: With dead ends: 109927 [2018-12-08 23:39:39,873 INFO L226 Difference]: Without dead ends: 109926 [2018-12-08 23:39:39,891 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2018-12-08 23:39:39,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109926 states. [2018-12-08 23:39:41,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109926 to 80157. [2018-12-08 23:39:41,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80157 states. [2018-12-08 23:39:41,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80157 states to 80157 states and 111367 transitions. [2018-12-08 23:39:41,136 INFO L78 Accepts]: Start accepts. Automaton has 80157 states and 111367 transitions. Word has length 85 [2018-12-08 23:39:41,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:41,136 INFO L480 AbstractCegarLoop]: Abstraction has 80157 states and 111367 transitions. [2018-12-08 23:39:41,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-08 23:39:41,136 INFO L276 IsEmpty]: Start isEmpty. Operand 80157 states and 111367 transitions. [2018-12-08 23:39:41,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-12-08 23:39:41,140 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:41,140 INFO L402 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 11, 11, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:41,140 INFO L423 AbstractCegarLoop]: === Iteration 44 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:41,141 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:41,141 INFO L82 PathProgramCache]: Analyzing trace with hash -508374954, now seen corresponding path program 11 times [2018-12-08 23:39:41,141 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:41,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:41,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:41,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:41,141 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:41,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:41,212 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 0 proven. 451 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:41,212 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:41,212 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:41,212 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:41,212 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:41,212 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:41,212 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:39:41,221 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-08 23:39:41,221 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-08 23:39:41,238 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2018-12-08 23:39:41,238 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 23:39:41,239 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:41,245 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 0 proven. 451 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:41,245 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:41,373 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 0 proven. 451 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:41,397 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:41,397 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2018-12-08 23:39:41,398 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:41,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-08 23:39:41,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-08 23:39:41,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2018-12-08 23:39:41,398 INFO L87 Difference]: Start difference. First operand 80157 states and 111367 transitions. Second operand 14 states. [2018-12-08 23:39:42,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:42,296 INFO L93 Difference]: Finished difference Result 102547 states and 144645 transitions. [2018-12-08 23:39:42,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-08 23:39:42,296 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 88 [2018-12-08 23:39:42,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:42,382 INFO L225 Difference]: With dead ends: 102547 [2018-12-08 23:39:42,382 INFO L226 Difference]: Without dead ends: 102545 [2018-12-08 23:39:42,392 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2018-12-08 23:39:42,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102545 states. [2018-12-08 23:39:43,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102545 to 90527. [2018-12-08 23:39:43,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90527 states. [2018-12-08 23:39:43,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90527 states to 90527 states and 125495 transitions. [2018-12-08 23:39:43,632 INFO L78 Accepts]: Start accepts. Automaton has 90527 states and 125495 transitions. Word has length 88 [2018-12-08 23:39:43,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:43,632 INFO L480 AbstractCegarLoop]: Abstraction has 90527 states and 125495 transitions. [2018-12-08 23:39:43,632 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-08 23:39:43,632 INFO L276 IsEmpty]: Start isEmpty. Operand 90527 states and 125495 transitions. [2018-12-08 23:39:43,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-12-08 23:39:43,637 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:43,637 INFO L402 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:43,637 INFO L423 AbstractCegarLoop]: === Iteration 45 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:43,638 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:43,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1413249871, now seen corresponding path program 10 times [2018-12-08 23:39:43,638 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:43,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:43,638 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 23:39:43,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:43,639 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:43,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:43,711 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:43,711 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:43,711 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:43,711 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:43,711 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:43,711 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:43,711 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:39:43,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:43,717 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 23:39:43,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:43,729 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:43,735 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:43,736 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:43,830 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:43,844 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:43,844 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2018-12-08 23:39:43,844 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:43,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-08 23:39:43,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-08 23:39:43,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2018-12-08 23:39:43,844 INFO L87 Difference]: Start difference. First operand 90527 states and 125495 transitions. Second operand 13 states. [2018-12-08 23:39:44,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:44,819 INFO L93 Difference]: Finished difference Result 123345 states and 172777 transitions. [2018-12-08 23:39:44,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-08 23:39:44,819 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 93 [2018-12-08 23:39:44,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:44,938 INFO L225 Difference]: With dead ends: 123345 [2018-12-08 23:39:44,938 INFO L226 Difference]: Without dead ends: 123344 [2018-12-08 23:39:44,962 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2018-12-08 23:39:45,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123344 states. [2018-12-08 23:39:46,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123344 to 93265. [2018-12-08 23:39:46,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93265 states. [2018-12-08 23:39:46,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93265 states to 93265 states and 129365 transitions. [2018-12-08 23:39:46,473 INFO L78 Accepts]: Start accepts. Automaton has 93265 states and 129365 transitions. Word has length 93 [2018-12-08 23:39:46,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:46,473 INFO L480 AbstractCegarLoop]: Abstraction has 93265 states and 129365 transitions. [2018-12-08 23:39:46,473 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-08 23:39:46,473 INFO L276 IsEmpty]: Start isEmpty. Operand 93265 states and 129365 transitions. [2018-12-08 23:39:46,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-12-08 23:39:46,479 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:46,479 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:46,479 INFO L423 AbstractCegarLoop]: === Iteration 46 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:46,479 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:46,479 INFO L82 PathProgramCache]: Analyzing trace with hash 879701896, now seen corresponding path program 9 times [2018-12-08 23:39:46,480 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:46,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:46,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:39:46,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:46,480 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:46,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:46,536 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:46,537 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:46,537 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:46,537 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:46,537 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:46,537 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:46,537 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:39:46,543 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-08 23:39:46,543 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-08 23:39:46,554 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-08 23:39:46,555 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 23:39:46,556 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:46,561 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:46,561 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:46,648 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:46,663 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:46,663 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2018-12-08 23:39:46,663 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:46,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-08 23:39:46,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-08 23:39:46,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2018-12-08 23:39:46,664 INFO L87 Difference]: Start difference. First operand 93265 states and 129365 transitions. Second operand 12 states. [2018-12-08 23:39:47,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:47,600 INFO L93 Difference]: Finished difference Result 123303 states and 173838 transitions. [2018-12-08 23:39:47,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-08 23:39:47,600 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 94 [2018-12-08 23:39:47,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:47,716 INFO L225 Difference]: With dead ends: 123303 [2018-12-08 23:39:47,716 INFO L226 Difference]: Without dead ends: 123301 [2018-12-08 23:39:47,737 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2018-12-08 23:39:47,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123301 states. [2018-12-08 23:39:49,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123301 to 107157. [2018-12-08 23:39:49,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107157 states. [2018-12-08 23:39:49,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107157 states to 107157 states and 148218 transitions. [2018-12-08 23:39:49,370 INFO L78 Accepts]: Start accepts. Automaton has 107157 states and 148218 transitions. Word has length 94 [2018-12-08 23:39:49,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:49,370 INFO L480 AbstractCegarLoop]: Abstraction has 107157 states and 148218 transitions. [2018-12-08 23:39:49,370 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-08 23:39:49,370 INFO L276 IsEmpty]: Start isEmpty. Operand 107157 states and 148218 transitions. [2018-12-08 23:39:49,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-12-08 23:39:49,375 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:49,375 INFO L402 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 12, 12, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:49,375 INFO L423 AbstractCegarLoop]: === Iteration 47 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:49,375 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:49,375 INFO L82 PathProgramCache]: Analyzing trace with hash 526129290, now seen corresponding path program 12 times [2018-12-08 23:39:49,375 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:49,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:49,375 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 23:39:49,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:49,376 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:49,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:49,433 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 517 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-12-08 23:39:49,434 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:39:49,434 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-12-08 23:39:49,434 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:39:49,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-08 23:39:49,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-08 23:39:49,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2018-12-08 23:39:49,434 INFO L87 Difference]: Start difference. First operand 107157 states and 148218 transitions. Second operand 13 states. [2018-12-08 23:39:50,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:50,024 INFO L93 Difference]: Finished difference Result 125640 states and 173038 transitions. [2018-12-08 23:39:50,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-08 23:39:50,024 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 95 [2018-12-08 23:39:50,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:50,025 INFO L225 Difference]: With dead ends: 125640 [2018-12-08 23:39:50,025 INFO L226 Difference]: Without dead ends: 423 [2018-12-08 23:39:50,086 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2018-12-08 23:39:50,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2018-12-08 23:39:50,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 226. [2018-12-08 23:39:50,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2018-12-08 23:39:50,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 264 transitions. [2018-12-08 23:39:50,091 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 264 transitions. Word has length 95 [2018-12-08 23:39:50,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:50,091 INFO L480 AbstractCegarLoop]: Abstraction has 226 states and 264 transitions. [2018-12-08 23:39:50,091 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-08 23:39:50,091 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 264 transitions. [2018-12-08 23:39:50,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-12-08 23:39:50,092 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:50,092 INFO L402 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:50,092 INFO L423 AbstractCegarLoop]: === Iteration 48 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:50,092 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:50,092 INFO L82 PathProgramCache]: Analyzing trace with hash 270660750, now seen corresponding path program 8 times [2018-12-08 23:39:50,092 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:50,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:50,093 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 23:39:50,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:50,093 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:50,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:50,140 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:50,140 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:50,140 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:50,140 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:50,140 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:50,140 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:50,140 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:39:50,146 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-08 23:39:50,146 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-08 23:39:50,161 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2018-12-08 23:39:50,161 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 23:39:50,163 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:50,170 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:50,170 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:50,244 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:50,258 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:50,258 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2018-12-08 23:39:50,258 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:50,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-08 23:39:50,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-08 23:39:50,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2018-12-08 23:39:50,259 INFO L87 Difference]: Start difference. First operand 226 states and 264 transitions. Second operand 11 states. [2018-12-08 23:39:50,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:50,286 INFO L93 Difference]: Finished difference Result 247 states and 284 transitions. [2018-12-08 23:39:50,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-08 23:39:50,286 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 95 [2018-12-08 23:39:50,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:50,286 INFO L225 Difference]: With dead ends: 247 [2018-12-08 23:39:50,286 INFO L226 Difference]: Without dead ends: 106 [2018-12-08 23:39:50,287 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2018-12-08 23:39:50,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-12-08 23:39:50,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2018-12-08 23:39:50,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2018-12-08 23:39:50,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 105 transitions. [2018-12-08 23:39:50,289 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 105 transitions. Word has length 95 [2018-12-08 23:39:50,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:50,289 INFO L480 AbstractCegarLoop]: Abstraction has 106 states and 105 transitions. [2018-12-08 23:39:50,289 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-08 23:39:50,289 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 105 transitions. [2018-12-08 23:39:50,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-12-08 23:39:50,289 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:39:50,289 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1] [2018-12-08 23:39:50,289 INFO L423 AbstractCegarLoop]: === Iteration 49 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 23:39:50,289 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:39:50,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1806118879, now seen corresponding path program 9 times [2018-12-08 23:39:50,289 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:39:50,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:50,290 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 23:39:50,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:39:50,290 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:39:50,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:39:50,335 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:50,335 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:50,335 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:39:50,335 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:39:50,335 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:39:50,335 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:39:50,335 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/z3 Starting monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:39:50,341 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-08 23:39:50,341 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-08 23:39:50,353 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-08 23:39:50,353 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 23:39:50,354 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:39:50,362 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:50,362 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:39:50,445 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:39:50,459 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:39:50,459 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2018-12-08 23:39:50,459 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:39:50,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-08 23:39:50,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-08 23:39:50,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2018-12-08 23:39:50,460 INFO L87 Difference]: Start difference. First operand 106 states and 105 transitions. Second operand 12 states. [2018-12-08 23:39:50,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:39:50,474 INFO L93 Difference]: Finished difference Result 106 states and 105 transitions. [2018-12-08 23:39:50,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-08 23:39:50,475 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 105 [2018-12-08 23:39:50,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:39:50,475 INFO L225 Difference]: With dead ends: 106 [2018-12-08 23:39:50,475 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 23:39:50,476 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2018-12-08 23:39:50,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 23:39:50,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 23:39:50,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 23:39:50,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 23:39:50,476 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 105 [2018-12-08 23:39:50,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:39:50,476 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 23:39:50,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-08 23:39:50,477 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 23:39:50,477 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 23:39:50,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-08 23:39:51,107 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:51,172 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:51,174 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:51,254 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:51,481 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:51,789 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:51,861 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:51,874 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:51,953 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:52,018 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:52,083 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:52,126 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:52,313 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:52,786 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:52,787 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:52,802 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:52,804 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:52,809 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:52,863 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:52,977 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:52,999 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:53,054 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:53,062 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:53,142 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:53,215 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:53,286 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:53,301 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:53,322 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:53,730 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:54,205 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:54,285 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:54,345 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:54,448 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:54,541 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:55,547 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:55,736 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:55,745 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:57,531 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:57,803 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:57,892 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:58,128 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:58,490 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:58,514 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:58,550 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:39:58,733 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:40:00,672 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:40:01,019 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:40:01,162 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:40:02,415 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:40:02,646 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:40:03,506 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:40:03,812 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:40:03,893 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:40:04,122 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:40:05,333 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:40:05,563 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:40:05,669 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:40:05,827 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:40:06,140 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:40:06,176 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:40:06,930 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:40:07,765 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:40:08,638 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:40:08,951 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:40:09,955 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:40:10,916 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:40:11,004 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:40:11,930 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:40:12,101 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:40:12,404 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:40:12,840 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:40:13,171 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:40:13,926 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:40:14,882 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:40:14,958 WARN L180 SmtUtils]: Spent 24.46 s on a formula simplification. DAG size of input: 2594 DAG size of output: 2228 [2018-12-08 23:41:16,389 WARN L180 SmtUtils]: Spent 1.02 m on a formula simplification. DAG size of input: 2065 DAG size of output: 353 [2018-12-08 23:41:16,393 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-08 23:41:16,393 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-08 23:41:16,393 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-08 23:41:16,394 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-08 23:41:16,394 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-08 23:41:16,394 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-08 23:41:16,394 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 31) no Hoare annotation was computed. [2018-12-08 23:41:16,394 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 13 35) no Hoare annotation was computed. [2018-12-08 23:41:16,394 INFO L448 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2018-12-08 23:41:16,394 INFO L448 ceAbstractionStarter]: For program point L23(lines 23 31) no Hoare annotation was computed. [2018-12-08 23:41:16,394 INFO L448 ceAbstractionStarter]: For program point L19-2(lines 19 33) no Hoare annotation was computed. [2018-12-08 23:41:16,394 INFO L448 ceAbstractionStarter]: For program point mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2018-12-08 23:41:16,394 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-12-08 23:41:16,394 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2018-12-08 23:41:16,394 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-12-08 23:41:16,394 INFO L448 ceAbstractionStarter]: For program point L28-1(line 28) no Hoare annotation was computed. [2018-12-08 23:41:16,394 INFO L448 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-12-08 23:41:16,394 INFO L448 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2018-12-08 23:41:16,394 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-12-08 23:41:16,394 INFO L448 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-12-08 23:41:16,394 INFO L448 ceAbstractionStarter]: For program point mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2018-12-08 23:41:16,394 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 31) no Hoare annotation was computed. [2018-12-08 23:41:16,395 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2018-12-08 23:41:16,395 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 13 35) no Hoare annotation was computed. [2018-12-08 23:41:16,395 INFO L448 ceAbstractionStarter]: For program point mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2018-12-08 23:41:16,395 INFO L448 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2018-12-08 23:41:16,395 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 13 35) the Hoare annotation is: true [2018-12-08 23:41:16,395 INFO L448 ceAbstractionStarter]: For program point L30-1(line 30) no Hoare annotation was computed. [2018-12-08 23:41:16,395 INFO L448 ceAbstractionStarter]: For program point L26(line 26) no Hoare annotation was computed. [2018-12-08 23:41:16,395 INFO L448 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2018-12-08 23:41:16,395 INFO L448 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2018-12-08 23:41:16,395 INFO L448 ceAbstractionStarter]: For program point L22(lines 22 32) no Hoare annotation was computed. [2018-12-08 23:41:16,396 INFO L444 ceAbstractionStarter]: At program point L22-1(lines 19 33) the Hoare annotation is: (let ((.cse66 (<= 0 (+ main_~x~0 2147483648))) (.cse1 (<= 0 main_~i~0)) (.cse6 (<= main_~N~0 10)) (.cse59 (<= 0 (+ main_~y~0 2147483648)))) (let ((.cse11 (<= 0 (+ main_~x~0 4))) (.cse13 (<= 0 (+ main_~x~0 2))) (.cse16 (and .cse66 .cse1 .cse6 .cse59))) (let ((.cse24 (<= main_~y~0 2)) (.cse15 (<= 0 (+ main_~y~0 1))) (.cse7 (<= 0 (+ main_~x~0 1))) (.cse9 (<= main_~y~0 0)) (.cse20 (<= main_~y~0 4)) (.cse36 (<= 0 (+ main_~y~0 2))) (.cse27 (<= main_~y~0 3)) (.cse42 (and .cse13 .cse16)) (.cse35 (<= 0 (+ main_~x~0 5))) (.cse4 (<= main_~x~0 0)) (.cse0 (<= 0 (+ main_~x~0 3))) (.cse3 (<= 0 main_~y~0)) (.cse63 (and .cse11 .cse16))) (let ((.cse48 (and .cse3 .cse63)) (.cse8 (<= main_~N~0 (+ main_~i~0 9))) (.cse40 (<= main_~y~0 9)) (.cse47 (<= main_~x~0 8)) (.cse32 (and .cse0 .cse16)) (.cse61 (and .cse1 .cse35 .cse4 .cse6 .cse59)) (.cse25 (<= main_~y~0 5)) (.cse43 (<= main_~x~0 9)) (.cse17 (and .cse42 .cse3)) (.cse60 (and (and .cse16 .cse3 .cse27) .cse4)) (.cse39 (and .cse66 .cse1 .cse36 .cse4 .cse6)) (.cse57 (<= 0 (+ main_~x~0 9))) (.cse49 (<= main_~x~0 3)) (.cse56 (<= main_~x~0 7)) (.cse50 (<= 0 (+ main_~y~0 5))) (.cse52 (<= main_~x~0 5)) (.cse28 (<= 0 (+ main_~x~0 6))) (.cse65 (and .cse20 .cse16 .cse4)) (.cse14 (<= main_~N~0 (+ main_~i~0 7))) (.cse19 (<= main_~y~0 8)) (.cse64 (and .cse0 .cse1 .cse3 .cse6)) (.cse34 (<= main_~y~0 6)) (.cse41 (and .cse1 .cse7 .cse4 .cse6 .cse59 .cse9)) (.cse55 (<= 0 (+ main_~y~0 6))) (.cse53 (<= 0 (+ main_~y~0 7))) (.cse23 (<= main_~x~0 1)) (.cse45 (<= main_~N~0 (+ main_~i~0 8))) (.cse26 (<= main_~N~0 (+ main_~i~0 5))) (.cse51 (and .cse13 .cse1 .cse4 .cse6 .cse59 .cse9)) (.cse33 (<= 0 (+ main_~y~0 3))) (.cse29 (<= main_~N~0 (+ main_~i~0 3))) (.cse2 (<= main_~N~0 (+ main_~i~0 6))) (.cse38 (<= main_~x~0 4)) (.cse30 (<= 0 (+ main_~x~0 8))) (.cse5 (<= main_~y~0 1)) (.cse12 (<= main_~N~0 (+ main_~i~0 4))) (.cse58 (and .cse66 .cse15 .cse1 .cse6)) (.cse46 (<= main_~x~0 6)) (.cse18 (<= main_~N~0 main_~i~0)) (.cse31 (<= main_~N~0 (+ main_~i~0 2))) (.cse44 (<= 0 (+ main_~y~0 4))) (.cse62 (<= main_~y~0 7)) (.cse21 (<= main_~x~0 2)) (.cse22 (<= 0 main_~x~0)) (.cse37 (<= main_~N~0 (+ main_~i~0 1))) (.cse54 (<= 0 (+ main_~x~0 7))) (.cse10 (and .cse66 .cse1 .cse3 .cse24 .cse6))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse1 .cse3 .cse7 .cse8 .cse4 .cse6 .cse9) (and .cse10 .cse11 .cse12 .cse4) (and .cse13 .cse14 .cse15 .cse16 .cse4 .cse9) (and .cse17 .cse4 .cse18 .cse19) (and .cse20 .cse1 .cse3 .cse12 .cse21 .cse6 .cse22) (and .cse14 .cse1 .cse23 .cse3 .cse24 .cse6 .cse22) (and .cse1 .cse23 .cse3 .cse12 .cse25 .cse6 .cse22) (and .cse1 .cse26 .cse3 .cse27 .cse21 .cse6 .cse22) (and .cse1 .cse28 .cse3 .cse4 .cse5 .cse6 .cse29) (and .cse30 .cse31 .cse1 .cse3 .cse4 .cse6 .cse9) (and .cse32 .cse12 .cse33 .cse4 .cse9) (and .cse1 .cse23 .cse34 .cse3 .cse6 .cse22 .cse29) (and .cse31 .cse28 .cse4 .cse10) (and .cse31 .cse35 .cse16 .cse33 .cse4 .cse9) (and .cse13 .cse16 .cse2 .cse36 .cse4 .cse9) (and .cse16 .cse28 .cse37 .cse33 .cse4 .cse9) (and .cse1 .cse12 .cse38 .cse36 .cse6 .cse22 .cse9) (and .cse39 .cse11 .cse12 .cse9) (and .cse11 .cse16 .cse33 .cse4 .cse9 .cse29) (and (and .cse11 .cse16 .cse3 .cse27) .cse4 .cse29) (and .cse1 .cse40 .cse3 .cse37 .cse4 .cse6 .cse22) (and .cse1 .cse3 .cse18 .cse4 (<= 0 (+ main_~x~0 10)) .cse6 .cse9) (and (or (and .cse1 .cse23 .cse2 .cse6 .cse22 .cse9) (and .cse2 .cse41)) .cse33) (and .cse3 .cse12 .cse4 (and .cse20 .cse42)) (and .cse32 .cse3 .cse27 .cse12 .cse4) (and .cse43 .cse1 .cse3 .cse37 .cse6 .cse22 .cse9) (and .cse31 .cse39 .cse28 .cse9) (and .cse44 .cse35 .cse16 .cse37 .cse4 .cse9) (and .cse1 .cse45 .cse3 .cse7 .cse4 .cse5 .cse6) (and .cse1 .cse46 .cse3 .cse12 .cse6 .cse22 .cse9) (and .cse1 .cse23 .cse3 .cse37 .cse6 .cse22 .cse19) (and .cse1 .cse3 .cse47 .cse24 .cse18 .cse6 .cse22) (and .cse37 .cse4 (and .cse25 .cse48)) (and .cse14 .cse49 .cse1 .cse3 .cse6 .cse22 .cse9) (and .cse50 .cse51 .cse29) (and .cse20 .cse1 .cse3 .cse37 .cse6 .cse22 .cse52) (and .cse32 .cse44 .cse4 .cse9 .cse29) (and .cse44 .cse1 .cse2 .cse4 .cse6 .cse22 .cse9) (and .cse31 .cse53 .cse41) (and .cse1 .cse23 .cse3 .cse45 .cse5 .cse6 .cse22) (and .cse16 .cse33 .cse4 .cse18 .cse54 .cse9) (and .cse1 .cse3 .cse8 .cse4 .cse5 .cse6 .cse22) (and .cse1 .cse12 .cse55 .cse4 .cse6 .cse22 .cse9) (and .cse1 .cse50 .cse38 .cse37 .cse6 .cse22 .cse9) (and .cse15 .cse49 .cse1 .cse2 .cse6 .cse22 .cse9) (and .cse14 .cse1 .cse3 .cse21 .cse5 .cse6 .cse22) (and .cse1 .cse3 .cse25 .cse18 .cse6 .cse22 .cse52) (and .cse31 .cse32 .cse3 .cse25 .cse4) (and .cse1 .cse3 .cse25 .cse38 .cse37 .cse6 .cse22) (and .cse1 .cse38 .cse33 .cse6 .cse22 .cse9 .cse29) (and .cse20 .cse31 .cse1 .cse3 .cse38 .cse6 .cse22) (and .cse49 .cse1 .cse53 .cse18 .cse6 .cse22 .cse9) (and .cse1 .cse3 .cse56 .cse24 .cse37 .cse6 .cse22) (and .cse1 .cse26 .cse11 .cse3 .cse4 .cse5 .cse6) (and .cse1 .cse3 .cse47 .cse37 .cse5 .cse6 .cse22) (and .cse1 .cse3 .cse37 .cse4 .cse6 .cse57 .cse9) (and .cse30 .cse37 .cse4 .cse58 .cse9) (and .cse1 .cse47 .cse36 .cse18 .cse6 .cse22 .cse9) (and (or (and .cse14 .cse1 .cse23 .cse6 .cse22 .cse9) (and .cse14 .cse41)) .cse36) (and .cse31 .cse1 .cse3 .cse27 .cse6 .cse22 .cse52) (and .cse35 .cse10 .cse4 .cse29) (and .cse1 .cse53 .cse21 .cse37 .cse6 .cse22 .cse9) (and .cse1 (<= main_~x~0 10) .cse3 .cse18 .cse6 .cse22 .cse9) (and .cse31 .cse44 .cse1 .cse38 .cse6 .cse22 .cse9) (and .cse15 .cse1 .cse46 .cse6 .cse22 .cse9 .cse29) (and .cse1 .cse40 .cse7 .cse4 .cse18 .cse6 .cse59) (and .cse1 .cse56 .cse37 .cse36 .cse6 .cse22 .cse9) (and .cse44 .cse12 .cse51) (and .cse1 .cse3 .cse12 .cse38 .cse24 .cse6 .cse22) (and .cse1 .cse38 .cse55 .cse18 .cse6 .cse22 .cse9) (and .cse43 .cse15 .cse1 .cse18 .cse6 .cse22 .cse9) (and .cse31 .cse60 .cse35) (and .cse1 .cse2 .cse27 .cse3 .cse7 .cse4 .cse6) (and .cse49 .cse1 .cse12 .cse33 .cse6 .cse22 .cse9) (and .cse1 .cse36 .cse6 .cse22 .cse9 .cse52 .cse29) (and .cse31 .cse1 .cse34 .cse3 .cse21 .cse6 .cse22) (and .cse14 .cse15 .cse1 .cse21 .cse6 .cse22 .cse9) (and .cse1 .cse12 .cse3 .cse25 .cse7 .cse4 .cse6) (and .cse1 .cse26 .cse3 .cse25 .cse4 .cse6 .cse22) (and .cse49 .cse1 .cse2 .cse3 .cse5 .cse6 .cse22) (and .cse15 .cse1 .cse8 .cse4 .cse6 .cse22 .cse9) (and .cse1 .cse50 .cse23 .cse12 .cse6 .cse22 .cse9) (and .cse61 .cse3 .cse25 .cse18) (and .cse13 .cse14 .cse1 .cse3 .cse4 .cse5 .cse6) (and .cse1 .cse21 .cse18 .cse6 .cse22 .cse19 .cse59) (and .cse31 .cse15 .cse1 .cse56 .cse6 .cse22 .cse9) (and .cse49 .cse1 .cse26 .cse36 .cse6 .cse22 .cse9) (and .cse20 .cse1 .cse26 .cse3 .cse7 .cse4 .cse6) (and .cse1 .cse4 .cse18 .cse6 .cse22 .cse59) (and .cse1 .cse46 .cse3 .cse27 .cse37 .cse6 .cse22) (and .cse44 .cse1 .cse26 .cse23 .cse6 .cse22 .cse9) (and .cse1 .cse50 .cse26 .cse4 .cse6 .cse22 .cse9) (and .cse0 .cse14 .cse1 .cse3 .cse4 .cse6 .cse9) (and .cse15 .cse1 .cse47 .cse37 .cse6 .cse22 .cse9) (and .cse1 .cse35 .cse26 .cse3 .cse4 .cse6 .cse9) (and .cse30 .cse39 .cse18 .cse9) (and .cse15 .cse1 .cse26 .cse38 .cse6 .cse22 .cse9) (and .cse1 .cse2 .cse3 .cse24 .cse21 .cse6 .cse22) (and .cse42 .cse3 .cse25 .cse4 .cse29) (and .cse28 .cse58 .cse4 .cse9 .cse29) (and .cse14 .cse1 .cse3 .cse27 .cse4 .cse6 .cse22) (and .cse1 .cse45 .cse36 .cse4 .cse6 .cse22 .cse9) (and .cse1 .cse3 .cse27 .cse38 .cse6 .cse22 .cse29) (and .cse44 .cse49 .cse1 .cse6 .cse22 .cse9 .cse29) (and .cse1 .cse11 .cse2 .cse3 .cse4 .cse6 .cse9) (and .cse44 .cse1 .cse46 .cse18 .cse6 .cse22 .cse9) (and .cse32 .cse37 .cse55 .cse4 .cse9) (and .cse1 .cse46 .cse3 .cse5 .cse6 .cse22 .cse29) (and .cse31 .cse1 .cse23 .cse3 .cse62 .cse6 .cse22) (and .cse4 .cse18 (and .cse34 .cse48)) (and .cse1 .cse34 .cse3 .cse7 .cse4 .cse6 .cse29) (and .cse1 .cse23 .cse3 .cse8 .cse6 .cse22 .cse9) (and .cse31 .cse1 (<= 0 (+ main_~y~0 8)) .cse4 .cse6 .cse22 .cse9) (and .cse0 .cse26 .cse16 .cse36 .cse4 .cse9) (and .cse1 .cse3 .cse12 .cse5 .cse6 .cse22 .cse52) (and .cse31 .cse1 .cse3 .cse62 .cse7 .cse4 .cse6) (and .cse31 .cse1 .cse46 .cse3 .cse24 .cse6 .cse22) (and .cse1 .cse53 .cse4 .cse6 .cse22 .cse9 .cse29) (and .cse13 .cse31 .cse34 (and .cse1 .cse4 .cse6) .cse3) (and .cse50 .cse37 .cse63 .cse4 .cse9) (and .cse1 .cse3 .cse7 .cse37 .cse4 .cse6 .cse19) (and .cse30 .cse4 .cse18 .cse10) (and .cse53 .cse51 .cse37) (and .cse1 .cse26 .cse3 .cse6 .cse22 .cse9 .cse52) (and .cse55 .cse63 .cse4 .cse18 .cse9) (and .cse1 .cse35 .cse3 .cse12 .cse4 .cse5 .cse6) (and .cse31 .cse1 .cse3 .cse54 .cse4 .cse5 .cse6) (and .cse1 .cse23 .cse40 .cse18 .cse6 .cse22 .cse59) (and .cse60 .cse28 .cse37) (and .cse32 .cse31 .cse50 .cse4 .cse9) (and .cse31 .cse1 .cse3 .cse56 .cse5 .cse6 .cse22) (and .cse31 .cse49 .cse1 .cse50 .cse6 .cse22 .cse9) (and .cse31 .cse1 .cse33 .cse6 .cse22 .cse9 .cse52) (and .cse44 .cse1 .cse12 .cse21 .cse6 .cse22 .cse9) (and .cse26 .cse3 .cse27 .cse4 .cse42) (and .cse31 .cse1 .cse3 .cse47 .cse6 .cse22 .cse9) (and .cse1 .cse50 .cse21 .cse6 .cse22 .cse9 .cse29) (and .cse15 .cse1 .cse12 .cse6 .cse22 .cse9 .cse52) (and .cse1 .cse3 .cse24 .cse6 .cse22 .cse52 .cse29) (and .cse1 .cse3 .cse25 .cse21 .cse6 .cse22 .cse29) (and .cse49 .cse1 .cse34 .cse3 .cse37 .cse6 .cse22) (and .cse44 .cse26 .cse41) (and .cse1 .cse28 .cse12 .cse3 .cse4 .cse6 .cse9) (and .cse58 .cse4 .cse18 .cse57 .cse9) (and .cse15 .cse1 .cse23 .cse45 .cse6 .cse22 .cse9) (and (or (and .cse1 .cse23 .cse37 .cse6 .cse22 .cse9) (and .cse37 .cse41)) (<= 0 (+ main_~y~0 9))) (and .cse1 .cse23 .cse2 .cse3 .cse27 .cse6 .cse22) (and .cse26 .cse11 .cse58 .cse4 .cse9) (and .cse32 .cse53 .cse4 .cse18 .cse9) (and .cse13 .cse1 .cse45 .cse3 .cse4 .cse6 .cse9) (and .cse50 .cse61 .cse18 .cse9) (and .cse1 .cse3 .cse56 .cse6 .cse22 .cse9 .cse29) (and .cse0 .cse26 .cse10 .cse4) (and .cse1 .cse26 .cse3 .cse38 .cse5 .cse6 .cse22) (and .cse62 .cse64 .cse4 .cse18) (and .cse44 .cse16 .cse28 .cse4 .cse18 .cse9) (and .cse1 .cse2 .cse21 .cse36 .cse6 .cse22 .cse9) (and .cse31 .cse1 .cse21 .cse55 .cse6 .cse22 .cse9) (and .cse31 .cse49 .cse1 .cse3 .cse25 .cse6 .cse22) (and .cse20 .cse49 .cse1 .cse3 .cse6 .cse22 .cse29) (and .cse43 .cse1 .cse3 .cse5 .cse18 .cse6 .cse22) (and .cse31 .cse58 .cse4 .cse54 .cse9) (and .cse17 .cse62 .cse37 .cse4) (and .cse1 .cse3 .cse4 .cse6 .cse22 .cse9) (and .cse51 .cse18) (and .cse49 .cse1 .cse26 .cse3 .cse24 .cse6 .cse22) (and .cse1 .cse34 .cse3 .cse12 .cse4 .cse6 .cse22) (and .cse60 .cse18 .cse54) (and .cse49 .cse1 .cse3 .cse27 .cse12 .cse6 .cse22) (and .cse1 .cse3 .cse56 .cse27 .cse18 .cse6 .cse22) (and .cse39 .cse37 .cse54 .cse9) (and .cse44 .cse1 .cse37 .cse6 .cse22 .cse9 .cse52) (and .cse39 .cse35 .cse9 .cse29) (and .cse35 .cse3 .cse65 .cse37) (and .cse50 .cse12 .cse41) (and .cse31 .cse51 .cse55) (and .cse49 .cse1 .cse3 .cse62 .cse18 .cse6 .cse22) (and .cse1 .cse3 .cse4 .cse5 .cse18 .cse6 .cse57) (and .cse1 .cse26 .cse21 .cse33 .cse6 .cse22 .cse9) (and .cse14 .cse1 .cse3 .cse24 .cse7 .cse4 .cse6) (and .cse1 .cse46 .cse37 .cse33 .cse6 .cse22 .cse9) (and .cse2 .cse3 .cse24 (and .cse13 .cse1 .cse4 .cse6)) (and .cse49 .cse1 .cse37 .cse55 .cse6 .cse22 .cse9) (and .cse31 .cse3 .cse4 (and .cse20 .cse63)) (and .cse1 .cse3 .cse45 .cse24 .cse4 .cse6 .cse22) (and .cse1 .cse34 .cse3 .cse38 .cse18 .cse6 .cse22) (and .cse1 .cse56 .cse33 .cse18 .cse6 .cse22 .cse9) (and .cse1 .cse50 .cse18 .cse6 .cse22 .cse9 .cse52) (and .cse28 (and .cse3 .cse65) .cse18) (and .cse20 .cse1 .cse2 .cse3 .cse4 .cse6 .cse22) (and .cse0 .cse3 (and .cse20 .cse1 .cse4 .cse6) .cse29) (and .cse14 .cse1 .cse33 .cse4 .cse6 .cse22 .cse9) (and .cse1 .cse3 .cse4 .cse54 .cse6 .cse9 .cse29) (and .cse0 .cse2 .cse58 .cse4 .cse9) (and .cse31 .cse1 .cse3 .cse4 .cse6 .cse22 .cse19) (and .cse31 .cse1 .cse46 .cse36 .cse6 .cse22 .cse9) (and .cse15 .cse45 (and .cse1 .cse6) .cse7 .cse4 .cse9) (and .cse64 .cse34 .cse37 .cse4) (and .cse20 .cse1 .cse26 .cse23 .cse3 .cse6 .cse22) (and (or (and .cse1 .cse23 .cse6 .cse22 .cse9 .cse29) (and .cse41 .cse29)) .cse55) (and .cse31 .cse1 .cse53 .cse23 .cse6 .cse22 .cse9) (and .cse1 .cse3 .cse45 .cse21 .cse6 .cse22 .cse9) (and .cse26 .cse51 .cse33) (and .cse1 .cse3 .cse62 .cse4 .cse6 .cse22 .cse29) (and .cse1 .cse2 .cse3 .cse38 .cse6 .cse22 .cse9) (and .cse30 .cse1 .cse3 .cse37 .cse4 .cse5 .cse6) (and .cse35 .cse12 .cse58 .cse4 .cse9) (and .cse20 .cse1 .cse46 .cse3 .cse18 .cse6 .cse22) (and .cse31 .cse44 .cse63 .cse4 .cse9) (and .cse1 .cse3 .cse62 .cse21 .cse37 .cse6 .cse22) (and .cse37 .cse4 .cse54 .cse10)))))) [2018-12-08 23:41:16,397 INFO L448 ceAbstractionStarter]: For program point mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2018-12-08 23:41:16,397 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2018-12-08 23:41:16,397 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-12-08 23:41:16,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 11:41:16 BoogieIcfgContainer [2018-12-08 23:41:16,437 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 23:41:16,438 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 23:41:16,438 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 23:41:16,438 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 23:41:16,438 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:39:14" (3/4) ... [2018-12-08 23:41:16,442 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 23:41:16,447 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 23:41:16,447 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 23:41:16,450 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-12-08 23:41:16,450 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-08 23:41:16,450 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-08 23:41:16,451 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-08 23:41:16,497 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_233bb763-16d1-4b31-bf7e-32edc6b18f17/bin-2019/utaipan/witness.graphml [2018-12-08 23:41:16,498 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 23:41:16,498 INFO L168 Benchmark]: Toolchain (without parser) took 122227.05 ms. Allocated memory was 1.0 GB in the beginning and 3.2 GB in the end (delta: 2.1 GB). Free memory was 958.8 MB in the beginning and 2.6 GB in the end (delta: -1.6 GB). Peak memory consumption was 528.2 MB. Max. memory is 11.5 GB. [2018-12-08 23:41:16,499 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:41:16,499 INFO L168 Benchmark]: CACSL2BoogieTranslator took 121.95 ms. Allocated memory is still 1.0 GB. Free memory was 958.8 MB in the beginning and 948.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 23:41:16,499 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.21 ms. Allocated memory is still 1.0 GB. Free memory is still 948.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:41:16,500 INFO L168 Benchmark]: Boogie Preprocessor took 12.39 ms. Allocated memory is still 1.0 GB. Free memory is still 948.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:41:16,500 INFO L168 Benchmark]: RCFGBuilder took 163.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -159.3 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2018-12-08 23:41:16,500 INFO L168 Benchmark]: TraceAbstraction took 121854.28 ms. Allocated memory was 1.2 GB in the beginning and 3.2 GB in the end (delta: 2.0 GB). Free memory was 1.1 GB in the beginning and 2.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 4.3 GB. Max. memory is 11.5 GB. [2018-12-08 23:41:16,500 INFO L168 Benchmark]: Witness Printer took 60.02 ms. Allocated memory is still 3.2 GB. Free memory is still 2.6 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:41:16,502 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 121.95 ms. Allocated memory is still 1.0 GB. Free memory was 958.8 MB in the beginning and 948.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.21 ms. Allocated memory is still 1.0 GB. Free memory is still 948.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.39 ms. Allocated memory is still 1.0 GB. Free memory is still 948.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 163.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -159.3 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 121854.28 ms. Allocated memory was 1.2 GB in the beginning and 3.2 GB in the end (delta: 2.0 GB). Free memory was 1.1 GB in the beginning and 2.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 4.3 GB. Max. memory is 11.5 GB. * Witness Printer took 60.02 ms. Allocated memory is still 3.2 GB. Free memory is still 2.6 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: 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: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: 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 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0 <= x + 3 && 0 <= i) && N <= i + 6) && 0 <= y) && x <= 0) && y <= 1) && N <= 10) || ((((((0 <= i && 0 <= y) && 0 <= x + 1) && N <= i + 9) && x <= 0) && N <= 10) && y <= 0)) || (((((((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && y <= 2) && N <= 10) && 0 <= x + 4) && N <= i + 4) && x <= 0)) || (((((0 <= x + 2 && N <= i + 7) && 0 <= y + 1) && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && x <= 0) && y <= 0)) || (((((0 <= x + 2 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && 0 <= y) && x <= 0) && N <= i) && y <= 8)) || ((((((y <= 4 && 0 <= i) && 0 <= y) && N <= i + 4) && x <= 2) && N <= 10) && 0 <= x)) || ((((((N <= i + 7 && 0 <= i) && x <= 1) && 0 <= y) && y <= 2) && N <= 10) && 0 <= x)) || ((((((0 <= i && x <= 1) && 0 <= y) && N <= i + 4) && y <= 5) && N <= 10) && 0 <= x)) || ((((((0 <= i && N <= i + 5) && 0 <= y) && y <= 3) && x <= 2) && N <= 10) && 0 <= x)) || ((((((0 <= i && 0 <= x + 6) && 0 <= y) && x <= 0) && y <= 1) && N <= 10) && N <= i + 3)) || ((((((0 <= x + 8 && N <= i + 2) && 0 <= i) && 0 <= y) && x <= 0) && N <= 10) && y <= 0)) || (((((0 <= x + 3 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && N <= i + 4) && 0 <= y + 3) && x <= 0) && y <= 0)) || ((((((0 <= i && x <= 1) && y <= 6) && 0 <= y) && N <= 10) && 0 <= x) && N <= i + 3)) || (((N <= i + 2 && 0 <= x + 6) && x <= 0) && (((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && y <= 2) && N <= 10)) || (((((N <= i + 2 && 0 <= x + 5) && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && 0 <= y + 3) && x <= 0) && y <= 0)) || (((((0 <= x + 2 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && N <= i + 6) && 0 <= y + 2) && x <= 0) && y <= 0)) || ((((((((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && 0 <= x + 6) && N <= i + 1) && 0 <= y + 3) && x <= 0) && y <= 0)) || ((((((0 <= i && N <= i + 4) && x <= 4) && 0 <= y + 2) && N <= 10) && 0 <= x) && y <= 0)) || (((((((0 <= x + 2147483648 && 0 <= i) && 0 <= y + 2) && x <= 0) && N <= 10) && 0 <= x + 4) && N <= i + 4) && y <= 0)) || (((((0 <= x + 4 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && 0 <= y + 3) && x <= 0) && y <= 0) && N <= i + 3)) || (((((0 <= x + 4 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && 0 <= y) && y <= 3) && x <= 0) && N <= i + 3)) || ((((((0 <= i && y <= 9) && 0 <= y) && N <= i + 1) && x <= 0) && N <= 10) && 0 <= x)) || ((((((0 <= i && 0 <= y) && N <= i) && x <= 0) && 0 <= x + 10) && N <= 10) && y <= 0)) || (((((((0 <= i && x <= 1) && N <= i + 6) && N <= 10) && 0 <= x) && y <= 0) || (N <= i + 6 && ((((0 <= i && 0 <= x + 1) && x <= 0) && N <= 10) && 0 <= y + 2147483648) && y <= 0)) && 0 <= y + 3)) || (((0 <= y && N <= i + 4) && x <= 0) && y <= 4 && 0 <= x + 2 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648)) || (((((0 <= x + 3 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && 0 <= y) && y <= 3) && N <= i + 4) && x <= 0)) || ((((((x <= 9 && 0 <= i) && 0 <= y) && N <= i + 1) && N <= 10) && 0 <= x) && y <= 0)) || (((N <= i + 2 && (((0 <= x + 2147483648 && 0 <= i) && 0 <= y + 2) && x <= 0) && N <= 10) && 0 <= x + 6) && y <= 0)) || (((((0 <= y + 4 && 0 <= x + 5) && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && N <= i + 1) && x <= 0) && y <= 0)) || ((((((0 <= i && N <= i + 8) && 0 <= y) && 0 <= x + 1) && x <= 0) && y <= 1) && N <= 10)) || ((((((0 <= i && x <= 6) && 0 <= y) && N <= i + 4) && N <= 10) && 0 <= x) && y <= 0)) || ((((((0 <= i && x <= 1) && 0 <= y) && N <= i + 1) && N <= 10) && 0 <= x) && y <= 8)) || ((((((0 <= i && 0 <= y) && x <= 8) && y <= 2) && N <= i) && N <= 10) && 0 <= x)) || ((N <= i + 1 && x <= 0) && y <= 5 && 0 <= y && 0 <= x + 4 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648)) || ((((((N <= i + 7 && x <= 3) && 0 <= i) && 0 <= y) && N <= 10) && 0 <= x) && y <= 0)) || ((0 <= y + 5 && ((((0 <= x + 2 && 0 <= i) && x <= 0) && N <= 10) && 0 <= y + 2147483648) && y <= 0) && N <= i + 3)) || ((((((y <= 4 && 0 <= i) && 0 <= y) && N <= i + 1) && N <= 10) && 0 <= x) && x <= 5)) || (((((0 <= x + 3 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && 0 <= y + 4) && x <= 0) && y <= 0) && N <= i + 3)) || ((((((0 <= y + 4 && 0 <= i) && N <= i + 6) && x <= 0) && N <= 10) && 0 <= x) && y <= 0)) || ((N <= i + 2 && 0 <= y + 7) && ((((0 <= i && 0 <= x + 1) && x <= 0) && N <= 10) && 0 <= y + 2147483648) && y <= 0)) || ((((((0 <= i && x <= 1) && 0 <= y) && N <= i + 8) && y <= 1) && N <= 10) && 0 <= x)) || ((((((((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && 0 <= y + 3) && x <= 0) && N <= i) && 0 <= x + 7) && y <= 0)) || ((((((0 <= i && 0 <= y) && N <= i + 9) && x <= 0) && y <= 1) && N <= 10) && 0 <= x)) || ((((((0 <= i && N <= i + 4) && 0 <= y + 6) && x <= 0) && N <= 10) && 0 <= x) && y <= 0)) || ((((((0 <= i && 0 <= y + 5) && x <= 4) && N <= i + 1) && N <= 10) && 0 <= x) && y <= 0)) || ((((((0 <= y + 1 && x <= 3) && 0 <= i) && N <= i + 6) && N <= 10) && 0 <= x) && y <= 0)) || ((((((N <= i + 7 && 0 <= i) && 0 <= y) && x <= 2) && y <= 1) && N <= 10) && 0 <= x)) || ((((((0 <= i && 0 <= y) && y <= 5) && N <= i) && N <= 10) && 0 <= x) && x <= 5)) || ((((N <= i + 2 && 0 <= x + 3 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && 0 <= y) && y <= 5) && x <= 0)) || ((((((0 <= i && 0 <= y) && y <= 5) && x <= 4) && N <= i + 1) && N <= 10) && 0 <= x)) || ((((((0 <= i && x <= 4) && 0 <= y + 3) && N <= 10) && 0 <= x) && y <= 0) && N <= i + 3)) || ((((((y <= 4 && N <= i + 2) && 0 <= i) && 0 <= y) && x <= 4) && N <= 10) && 0 <= x)) || ((((((x <= 3 && 0 <= i) && 0 <= y + 7) && N <= i) && N <= 10) && 0 <= x) && y <= 0)) || ((((((0 <= i && 0 <= y) && x <= 7) && y <= 2) && N <= i + 1) && N <= 10) && 0 <= x)) || ((((((0 <= i && N <= i + 5) && 0 <= x + 4) && 0 <= y) && x <= 0) && y <= 1) && N <= 10)) || ((((((0 <= i && 0 <= y) && x <= 8) && N <= i + 1) && y <= 1) && N <= 10) && 0 <= x)) || ((((((0 <= i && 0 <= y) && N <= i + 1) && x <= 0) && N <= 10) && 0 <= x + 9) && y <= 0)) || ((((0 <= x + 8 && N <= i + 1) && x <= 0) && ((0 <= x + 2147483648 && 0 <= y + 1) && 0 <= i) && N <= 10) && y <= 0)) || ((((((0 <= i && x <= 8) && 0 <= y + 2) && N <= i) && N <= 10) && 0 <= x) && y <= 0)) || (((((((N <= i + 7 && 0 <= i) && x <= 1) && N <= 10) && 0 <= x) && y <= 0) || (N <= i + 7 && ((((0 <= i && 0 <= x + 1) && x <= 0) && N <= 10) && 0 <= y + 2147483648) && y <= 0)) && 0 <= y + 2)) || ((((((N <= i + 2 && 0 <= i) && 0 <= y) && y <= 3) && N <= 10) && 0 <= x) && x <= 5)) || (((0 <= x + 5 && (((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && y <= 2) && N <= 10) && x <= 0) && N <= i + 3)) || ((((((0 <= i && 0 <= y + 7) && x <= 2) && N <= i + 1) && N <= 10) && 0 <= x) && y <= 0)) || ((((((0 <= i && x <= 10) && 0 <= y) && N <= i) && N <= 10) && 0 <= x) && y <= 0)) || ((((((N <= i + 2 && 0 <= y + 4) && 0 <= i) && x <= 4) && N <= 10) && 0 <= x) && y <= 0)) || ((((((0 <= y + 1 && 0 <= i) && x <= 6) && N <= 10) && 0 <= x) && y <= 0) && N <= i + 3)) || ((((((0 <= i && y <= 9) && 0 <= x + 1) && x <= 0) && N <= i) && N <= 10) && 0 <= y + 2147483648)) || ((((((0 <= i && x <= 7) && N <= i + 1) && 0 <= y + 2) && N <= 10) && 0 <= x) && y <= 0)) || ((0 <= y + 4 && N <= i + 4) && ((((0 <= x + 2 && 0 <= i) && x <= 0) && N <= 10) && 0 <= y + 2147483648) && y <= 0)) || ((((((0 <= i && 0 <= y) && N <= i + 4) && x <= 4) && y <= 2) && N <= 10) && 0 <= x)) || ((((((0 <= i && x <= 4) && 0 <= y + 6) && N <= i) && N <= 10) && 0 <= x) && y <= 0)) || ((((((x <= 9 && 0 <= y + 1) && 0 <= i) && N <= i) && N <= 10) && 0 <= x) && y <= 0)) || ((N <= i + 2 && (((((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && 0 <= y) && y <= 3) && x <= 0) && 0 <= x + 5)) || ((((((0 <= i && N <= i + 6) && y <= 3) && 0 <= y) && 0 <= x + 1) && x <= 0) && N <= 10)) || ((((((x <= 3 && 0 <= i) && N <= i + 4) && 0 <= y + 3) && N <= 10) && 0 <= x) && y <= 0)) || ((((((0 <= i && 0 <= y + 2) && N <= 10) && 0 <= x) && y <= 0) && x <= 5) && N <= i + 3)) || ((((((N <= i + 2 && 0 <= i) && y <= 6) && 0 <= y) && x <= 2) && N <= 10) && 0 <= x)) || ((((((N <= i + 7 && 0 <= y + 1) && 0 <= i) && x <= 2) && N <= 10) && 0 <= x) && y <= 0)) || ((((((0 <= i && N <= i + 4) && 0 <= y) && y <= 5) && 0 <= x + 1) && x <= 0) && N <= 10)) || ((((((0 <= i && N <= i + 5) && 0 <= y) && y <= 5) && x <= 0) && N <= 10) && 0 <= x)) || ((((((x <= 3 && 0 <= i) && N <= i + 6) && 0 <= y) && y <= 1) && N <= 10) && 0 <= x)) || ((((((0 <= y + 1 && 0 <= i) && N <= i + 9) && x <= 0) && N <= 10) && 0 <= x) && y <= 0)) || ((((((0 <= i && 0 <= y + 5) && x <= 1) && N <= i + 4) && N <= 10) && 0 <= x) && y <= 0)) || (((((((0 <= i && 0 <= x + 5) && x <= 0) && N <= 10) && 0 <= y + 2147483648) && 0 <= y) && y <= 5) && N <= i)) || ((((((0 <= x + 2 && N <= i + 7) && 0 <= i) && 0 <= y) && x <= 0) && y <= 1) && N <= 10)) || ((((((0 <= i && x <= 2) && N <= i) && N <= 10) && 0 <= x) && y <= 8) && 0 <= y + 2147483648)) || ((((((N <= i + 2 && 0 <= y + 1) && 0 <= i) && x <= 7) && N <= 10) && 0 <= x) && y <= 0)) || ((((((x <= 3 && 0 <= i) && N <= i + 5) && 0 <= y + 2) && N <= 10) && 0 <= x) && y <= 0)) || ((((((y <= 4 && 0 <= i) && N <= i + 5) && 0 <= y) && 0 <= x + 1) && x <= 0) && N <= 10)) || (((((0 <= i && x <= 0) && N <= i) && N <= 10) && 0 <= x) && 0 <= y + 2147483648)) || ((((((0 <= i && x <= 6) && 0 <= y) && y <= 3) && N <= i + 1) && N <= 10) && 0 <= x)) || ((((((0 <= y + 4 && 0 <= i) && N <= i + 5) && x <= 1) && N <= 10) && 0 <= x) && y <= 0)) || ((((((0 <= i && 0 <= y + 5) && N <= i + 5) && x <= 0) && N <= 10) && 0 <= x) && y <= 0)) || ((((((0 <= x + 3 && N <= i + 7) && 0 <= i) && 0 <= y) && x <= 0) && N <= 10) && y <= 0)) || ((((((0 <= y + 1 && 0 <= i) && x <= 8) && N <= i + 1) && N <= 10) && 0 <= x) && y <= 0)) || ((((((0 <= i && 0 <= x + 5) && N <= i + 5) && 0 <= y) && x <= 0) && N <= 10) && y <= 0)) || (((0 <= x + 8 && (((0 <= x + 2147483648 && 0 <= i) && 0 <= y + 2) && x <= 0) && N <= 10) && N <= i) && y <= 0)) || ((((((0 <= y + 1 && 0 <= i) && N <= i + 5) && x <= 4) && N <= 10) && 0 <= x) && y <= 0)) || ((((((0 <= i && N <= i + 6) && 0 <= y) && y <= 2) && x <= 2) && N <= 10) && 0 <= x)) || (((((0 <= x + 2 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && 0 <= y) && y <= 5) && x <= 0) && N <= i + 3)) || ((((0 <= x + 6 && ((0 <= x + 2147483648 && 0 <= y + 1) && 0 <= i) && N <= 10) && x <= 0) && y <= 0) && N <= i + 3)) || ((((((N <= i + 7 && 0 <= i) && 0 <= y) && y <= 3) && x <= 0) && N <= 10) && 0 <= x)) || ((((((0 <= i && N <= i + 8) && 0 <= y + 2) && x <= 0) && N <= 10) && 0 <= x) && y <= 0)) || ((((((0 <= i && 0 <= y) && y <= 3) && x <= 4) && N <= 10) && 0 <= x) && N <= i + 3)) || ((((((0 <= y + 4 && x <= 3) && 0 <= i) && N <= 10) && 0 <= x) && y <= 0) && N <= i + 3)) || ((((((0 <= i && 0 <= x + 4) && N <= i + 6) && 0 <= y) && x <= 0) && N <= 10) && y <= 0)) || ((((((0 <= y + 4 && 0 <= i) && x <= 6) && N <= i) && N <= 10) && 0 <= x) && y <= 0)) || (((((0 <= x + 3 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && N <= i + 1) && 0 <= y + 6) && x <= 0) && y <= 0)) || ((((((0 <= i && x <= 6) && 0 <= y) && y <= 1) && N <= 10) && 0 <= x) && N <= i + 3)) || ((((((N <= i + 2 && 0 <= i) && x <= 1) && 0 <= y) && y <= 7) && N <= 10) && 0 <= x)) || ((x <= 0 && N <= i) && y <= 6 && 0 <= y && 0 <= x + 4 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648)) || ((((((0 <= i && y <= 6) && 0 <= y) && 0 <= x + 1) && x <= 0) && N <= 10) && N <= i + 3)) || ((((((0 <= i && x <= 1) && 0 <= y) && N <= i + 9) && N <= 10) && 0 <= x) && y <= 0)) || ((((((N <= i + 2 && 0 <= i) && 0 <= y + 8) && x <= 0) && N <= 10) && 0 <= x) && y <= 0)) || (((((0 <= x + 3 && N <= i + 5) && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && 0 <= y + 2) && x <= 0) && y <= 0)) || ((((((0 <= i && 0 <= y) && N <= i + 4) && y <= 1) && N <= 10) && 0 <= x) && x <= 5)) || ((((((N <= i + 2 && 0 <= i) && 0 <= y) && y <= 7) && 0 <= x + 1) && x <= 0) && N <= 10)) || ((((((N <= i + 2 && 0 <= i) && x <= 6) && 0 <= y) && y <= 2) && N <= 10) && 0 <= x)) || ((((((0 <= i && 0 <= y + 7) && x <= 0) && N <= 10) && 0 <= x) && y <= 0) && N <= i + 3)) || ((((0 <= x + 2 && N <= i + 2) && y <= 6) && (0 <= i && x <= 0) && N <= 10) && 0 <= y)) || ((((0 <= y + 5 && N <= i + 1) && 0 <= x + 4 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && x <= 0) && y <= 0)) || ((((((0 <= i && 0 <= y) && 0 <= x + 1) && N <= i + 1) && x <= 0) && N <= 10) && y <= 8)) || (((0 <= x + 8 && x <= 0) && N <= i) && (((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && y <= 2) && N <= 10)) || ((0 <= y + 7 && ((((0 <= x + 2 && 0 <= i) && x <= 0) && N <= 10) && 0 <= y + 2147483648) && y <= 0) && N <= i + 1)) || ((((((0 <= i && N <= i + 5) && 0 <= y) && N <= 10) && 0 <= x) && y <= 0) && x <= 5)) || ((((0 <= y + 6 && 0 <= x + 4 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && x <= 0) && N <= i) && y <= 0)) || ((((((0 <= i && 0 <= x + 5) && 0 <= y) && N <= i + 4) && x <= 0) && y <= 1) && N <= 10)) || ((((((N <= i + 2 && 0 <= i) && 0 <= y) && 0 <= x + 7) && x <= 0) && y <= 1) && N <= 10)) || ((((((0 <= i && x <= 1) && y <= 9) && N <= i) && N <= 10) && 0 <= x) && 0 <= y + 2147483648)) || ((((((((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && 0 <= y) && y <= 3) && x <= 0) && 0 <= x + 6) && N <= i + 1)) || (((((0 <= x + 3 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && N <= i + 2) && 0 <= y + 5) && x <= 0) && y <= 0)) || ((((((N <= i + 2 && 0 <= i) && 0 <= y) && x <= 7) && y <= 1) && N <= 10) && 0 <= x)) || ((((((N <= i + 2 && x <= 3) && 0 <= i) && 0 <= y + 5) && N <= 10) && 0 <= x) && y <= 0)) || ((((((N <= i + 2 && 0 <= i) && 0 <= y + 3) && N <= 10) && 0 <= x) && y <= 0) && x <= 5)) || ((((((0 <= y + 4 && 0 <= i) && N <= i + 4) && x <= 2) && N <= 10) && 0 <= x) && y <= 0)) || ((((N <= i + 5 && 0 <= y) && y <= 3) && x <= 0) && 0 <= x + 2 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648)) || ((((((N <= i + 2 && 0 <= i) && 0 <= y) && x <= 8) && N <= 10) && 0 <= x) && y <= 0)) || ((((((0 <= i && 0 <= y + 5) && x <= 2) && N <= 10) && 0 <= x) && y <= 0) && N <= i + 3)) || ((((((0 <= y + 1 && 0 <= i) && N <= i + 4) && N <= 10) && 0 <= x) && y <= 0) && x <= 5)) || ((((((0 <= i && 0 <= y) && y <= 2) && N <= 10) && 0 <= x) && x <= 5) && N <= i + 3)) || ((((((0 <= i && 0 <= y) && y <= 5) && x <= 2) && N <= 10) && 0 <= x) && N <= i + 3)) || ((((((x <= 3 && 0 <= i) && y <= 6) && 0 <= y) && N <= i + 1) && N <= 10) && 0 <= x)) || ((0 <= y + 4 && N <= i + 5) && ((((0 <= i && 0 <= x + 1) && x <= 0) && N <= 10) && 0 <= y + 2147483648) && y <= 0)) || ((((((0 <= i && 0 <= x + 6) && N <= i + 4) && 0 <= y) && x <= 0) && N <= 10) && y <= 0)) || (((((((0 <= x + 2147483648 && 0 <= y + 1) && 0 <= i) && N <= 10) && x <= 0) && N <= i) && 0 <= x + 9) && y <= 0)) || ((((((0 <= y + 1 && 0 <= i) && x <= 1) && N <= i + 8) && N <= 10) && 0 <= x) && y <= 0)) || (((((((0 <= i && x <= 1) && N <= i + 1) && N <= 10) && 0 <= x) && y <= 0) || (N <= i + 1 && ((((0 <= i && 0 <= x + 1) && x <= 0) && N <= 10) && 0 <= y + 2147483648) && y <= 0)) && 0 <= y + 9)) || ((((((0 <= i && x <= 1) && N <= i + 6) && 0 <= y) && y <= 3) && N <= 10) && 0 <= x)) || ((((N <= i + 5 && 0 <= x + 4) && ((0 <= x + 2147483648 && 0 <= y + 1) && 0 <= i) && N <= 10) && x <= 0) && y <= 0)) || (((((0 <= x + 3 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && 0 <= y + 7) && x <= 0) && N <= i) && y <= 0)) || ((((((0 <= x + 2 && 0 <= i) && N <= i + 8) && 0 <= y) && x <= 0) && N <= 10) && y <= 0)) || (((0 <= y + 5 && (((0 <= i && 0 <= x + 5) && x <= 0) && N <= 10) && 0 <= y + 2147483648) && N <= i) && y <= 0)) || ((((((0 <= i && 0 <= y) && x <= 7) && N <= 10) && 0 <= x) && y <= 0) && N <= i + 3)) || (((0 <= x + 3 && N <= i + 5) && (((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && y <= 2) && N <= 10) && x <= 0)) || ((((((0 <= i && N <= i + 5) && 0 <= y) && x <= 4) && y <= 1) && N <= 10) && 0 <= x)) || (((y <= 7 && ((0 <= x + 3 && 0 <= i) && 0 <= y) && N <= 10) && x <= 0) && N <= i)) || (((((0 <= y + 4 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && 0 <= x + 6) && x <= 0) && N <= i) && y <= 0)) || ((((((0 <= i && N <= i + 6) && x <= 2) && 0 <= y + 2) && N <= 10) && 0 <= x) && y <= 0)) || ((((((N <= i + 2 && 0 <= i) && x <= 2) && 0 <= y + 6) && N <= 10) && 0 <= x) && y <= 0)) || ((((((N <= i + 2 && x <= 3) && 0 <= i) && 0 <= y) && y <= 5) && N <= 10) && 0 <= x)) || ((((((y <= 4 && x <= 3) && 0 <= i) && 0 <= y) && N <= 10) && 0 <= x) && N <= i + 3)) || ((((((x <= 9 && 0 <= i) && 0 <= y) && y <= 1) && N <= i) && N <= 10) && 0 <= x)) || ((((N <= i + 2 && ((0 <= x + 2147483648 && 0 <= y + 1) && 0 <= i) && N <= 10) && x <= 0) && 0 <= x + 7) && y <= 0)) || (((((0 <= x + 2 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && 0 <= y) && y <= 7) && N <= i + 1) && x <= 0)) || (((((0 <= i && 0 <= y) && x <= 0) && N <= 10) && 0 <= x) && y <= 0)) || ((((((0 <= x + 2 && 0 <= i) && x <= 0) && N <= 10) && 0 <= y + 2147483648) && y <= 0) && N <= i)) || ((((((x <= 3 && 0 <= i) && N <= i + 5) && 0 <= y) && y <= 2) && N <= 10) && 0 <= x)) || ((((((0 <= i && y <= 6) && 0 <= y) && N <= i + 4) && x <= 0) && N <= 10) && 0 <= x)) || ((((((((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && 0 <= y) && y <= 3) && x <= 0) && N <= i) && 0 <= x + 7)) || ((((((x <= 3 && 0 <= i) && 0 <= y) && y <= 3) && N <= i + 4) && N <= 10) && 0 <= x)) || ((((((0 <= i && 0 <= y) && x <= 7) && y <= 3) && N <= i) && N <= 10) && 0 <= x)) || (((((((0 <= x + 2147483648 && 0 <= i) && 0 <= y + 2) && x <= 0) && N <= 10) && N <= i + 1) && 0 <= x + 7) && y <= 0)) || ((((((0 <= y + 4 && 0 <= i) && N <= i + 1) && N <= 10) && 0 <= x) && y <= 0) && x <= 5)) || (((((((0 <= x + 2147483648 && 0 <= i) && 0 <= y + 2) && x <= 0) && N <= 10) && 0 <= x + 5) && y <= 0) && N <= i + 3)) || (((0 <= x + 5 && 0 <= y) && (y <= 4 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && x <= 0) && N <= i + 1)) || ((0 <= y + 5 && N <= i + 4) && ((((0 <= i && 0 <= x + 1) && x <= 0) && N <= 10) && 0 <= y + 2147483648) && y <= 0)) || ((N <= i + 2 && ((((0 <= x + 2 && 0 <= i) && x <= 0) && N <= 10) && 0 <= y + 2147483648) && y <= 0) && 0 <= y + 6)) || ((((((x <= 3 && 0 <= i) && 0 <= y) && y <= 7) && N <= i) && N <= 10) && 0 <= x)) || ((((((0 <= i && 0 <= y) && x <= 0) && y <= 1) && N <= i) && N <= 10) && 0 <= x + 9)) || ((((((0 <= i && N <= i + 5) && x <= 2) && 0 <= y + 3) && N <= 10) && 0 <= x) && y <= 0)) || ((((((N <= i + 7 && 0 <= i) && 0 <= y) && y <= 2) && 0 <= x + 1) && x <= 0) && N <= 10)) || ((((((0 <= i && x <= 6) && N <= i + 1) && 0 <= y + 3) && N <= 10) && 0 <= x) && y <= 0)) || (((N <= i + 6 && 0 <= y) && y <= 2) && ((0 <= x + 2 && 0 <= i) && x <= 0) && N <= 10)) || ((((((x <= 3 && 0 <= i) && N <= i + 1) && 0 <= y + 6) && N <= 10) && 0 <= x) && y <= 0)) || (((N <= i + 2 && 0 <= y) && x <= 0) && y <= 4 && 0 <= x + 4 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648)) || ((((((0 <= i && 0 <= y) && N <= i + 8) && y <= 2) && x <= 0) && N <= 10) && 0 <= x)) || ((((((0 <= i && y <= 6) && 0 <= y) && x <= 4) && N <= i) && N <= 10) && 0 <= x)) || ((((((0 <= i && x <= 7) && 0 <= y + 3) && N <= i) && N <= 10) && 0 <= x) && y <= 0)) || ((((((0 <= i && 0 <= y + 5) && N <= i) && N <= 10) && 0 <= x) && y <= 0) && x <= 5)) || ((0 <= x + 6 && 0 <= y && (y <= 4 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && x <= 0) && N <= i)) || ((((((y <= 4 && 0 <= i) && N <= i + 6) && 0 <= y) && x <= 0) && N <= 10) && 0 <= x)) || (((0 <= x + 3 && 0 <= y) && ((y <= 4 && 0 <= i) && x <= 0) && N <= 10) && N <= i + 3)) || ((((((N <= i + 7 && 0 <= i) && 0 <= y + 3) && x <= 0) && N <= 10) && 0 <= x) && y <= 0)) || ((((((0 <= i && 0 <= y) && x <= 0) && 0 <= x + 7) && N <= 10) && y <= 0) && N <= i + 3)) || ((((0 <= x + 3 && N <= i + 6) && ((0 <= x + 2147483648 && 0 <= y + 1) && 0 <= i) && N <= 10) && x <= 0) && y <= 0)) || ((((((N <= i + 2 && 0 <= i) && 0 <= y) && x <= 0) && N <= 10) && 0 <= x) && y <= 8)) || ((((((N <= i + 2 && 0 <= i) && x <= 6) && 0 <= y + 2) && N <= 10) && 0 <= x) && y <= 0)) || (((((0 <= y + 1 && N <= i + 8) && 0 <= i && N <= 10) && 0 <= x + 1) && x <= 0) && y <= 0)) || ((((((0 <= x + 3 && 0 <= i) && 0 <= y) && N <= 10) && y <= 6) && N <= i + 1) && x <= 0)) || ((((((y <= 4 && 0 <= i) && N <= i + 5) && x <= 1) && 0 <= y) && N <= 10) && 0 <= x)) || (((((((0 <= i && x <= 1) && N <= 10) && 0 <= x) && y <= 0) && N <= i + 3) || ((((((0 <= i && 0 <= x + 1) && x <= 0) && N <= 10) && 0 <= y + 2147483648) && y <= 0) && N <= i + 3)) && 0 <= y + 6)) || ((((((N <= i + 2 && 0 <= i) && 0 <= y + 7) && x <= 1) && N <= 10) && 0 <= x) && y <= 0)) || ((((((0 <= i && 0 <= y) && N <= i + 8) && x <= 2) && N <= 10) && 0 <= x) && y <= 0)) || ((N <= i + 5 && ((((0 <= x + 2 && 0 <= i) && x <= 0) && N <= 10) && 0 <= y + 2147483648) && y <= 0) && 0 <= y + 3)) || ((((((0 <= i && 0 <= y) && y <= 7) && x <= 0) && N <= 10) && 0 <= x) && N <= i + 3)) || ((((((0 <= i && N <= i + 6) && 0 <= y) && x <= 4) && N <= 10) && 0 <= x) && y <= 0)) || ((((((0 <= x + 8 && 0 <= i) && 0 <= y) && N <= i + 1) && x <= 0) && y <= 1) && N <= 10)) || ((((0 <= x + 5 && N <= i + 4) && ((0 <= x + 2147483648 && 0 <= y + 1) && 0 <= i) && N <= 10) && x <= 0) && y <= 0)) || ((((((y <= 4 && 0 <= i) && x <= 6) && 0 <= y) && N <= i) && N <= 10) && 0 <= x)) || ((((N <= i + 2 && 0 <= y + 4) && 0 <= x + 4 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && x <= 0) && y <= 0)) || ((((((0 <= i && 0 <= y) && y <= 7) && x <= 2) && N <= i + 1) && N <= 10) && 0 <= x)) || (((N <= i + 1 && x <= 0) && 0 <= x + 7) && (((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && y <= 2) && N <= 10) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 36 locations, 10 error locations. SAFE Result, 121.7s OverallTime, 49 OverallIterations, 13 TraceHistogramMax, 13.4s AutomataDifference, 0.0s DeadEndRemovalTime, 85.9s HoareAnnotationTime, HoareTripleCheckerStatistics: 1469 SDtfs, 8173 SDslu, 6256 SDs, 0 SdLazy, 1594 SolverSat, 1407 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4914 GetRequests, 4380 SyntacticMatches, 0 SemanticMatches, 534 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107157occurred in iteration=46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.3s AbstIntTime, 7 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 16.1s AutomataMinimizationTime, 49 MinimizatonAttempts, 261319 StatesRemovedByMinimization, 44 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 1839 NumberOfFragments, 6091 HoareAnnotationTreeSize, 5 FomulaSimplifications, 292925 FormulaSimplificationTreeSizeReduction, 24.4s HoareSimplificationTime, 5 FomulaSimplificationsInter, 79435 FormulaSimplificationTreeSizeReductionInter, 61.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 4790 NumberOfCodeBlocks, 4790 NumberOfCodeBlocksAsserted, 174 NumberOfCheckSat, 6972 ConstructedInterpolants, 0 QuantifiedInterpolants, 1738298 SizeOfPredicates, 2 NumberOfNonLiveVariables, 5325 ConjunctsInSsa, 298 ConjunctsInUnsatCore, 133 InterpolantComputations, 11 PerfectInterpolantSequences, 559/20934 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...