./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_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/config/AutomizerReach.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_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 932d0be5444dce6d8d9a378b61966d0cdf64a5cb .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-01 14:51:27,918 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 14:51:27,919 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 14:51:27,928 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 14:51:27,928 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 14:51:27,929 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 14:51:27,930 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 14:51:27,931 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 14:51:27,932 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 14:51:27,932 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 14:51:27,933 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 14:51:27,933 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 14:51:27,934 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 14:51:27,935 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 14:51:27,936 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 14:51:27,936 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 14:51:27,937 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 14:51:27,938 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 14:51:27,940 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 14:51:27,941 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 14:51:27,942 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 14:51:27,943 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 14:51:27,945 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 14:51:27,945 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 14:51:27,945 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 14:51:27,946 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 14:51:27,946 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 14:51:27,947 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 14:51:27,948 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 14:51:27,949 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 14:51:27,949 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 14:51:27,949 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 14:51:27,949 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 14:51:27,950 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 14:51:27,950 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 14:51:27,951 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 14:51:27,951 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-12-01 14:51:27,962 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 14:51:27,962 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 14:51:27,962 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 14:51:27,963 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-01 14:51:27,963 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 14:51:27,963 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 14:51:27,963 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 14:51:27,964 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 14:51:27,964 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 14:51:27,964 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 14:51:27,964 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 14:51:27,964 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-01 14:51:27,964 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 14:51:27,964 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-01 14:51:27,964 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-01 14:51:27,965 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 14:51:27,965 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 14:51:27,965 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-01 14:51:27,965 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 14:51:27,965 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 14:51:27,965 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 14:51:27,965 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-01 14:51:27,966 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 14:51:27,966 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 14:51:27,966 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 14:51:27,966 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-01 14:51:27,966 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-01 14:51:27,966 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 14:51:27,966 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-01 14:51:27,966 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 932d0be5444dce6d8d9a378b61966d0cdf64a5cb [2018-12-01 14:51:27,988 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 14:51:27,996 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 14:51:27,998 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 14:51:27,999 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 14:51:27,999 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 14:51:28,000 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d_true-termination_true-no-overflow.c [2018-12-01 14:51:28,038 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/data/49627e10a/0a0eeedcee6a4f9283134f11935b77ac/FLAG099e7a4b3 [2018-12-01 14:51:28,435 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 14:51:28,435 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d_true-termination_true-no-overflow.c [2018-12-01 14:51:28,439 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/data/49627e10a/0a0eeedcee6a4f9283134f11935b77ac/FLAG099e7a4b3 [2018-12-01 14:51:28,447 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/data/49627e10a/0a0eeedcee6a4f9283134f11935b77ac [2018-12-01 14:51:28,448 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 14:51:28,449 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 14:51:28,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 14:51:28,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 14:51:28,452 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 14:51:28,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:51:28" (1/1) ... [2018-12-01 14:51:28,454 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3033e242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:51:28, skipping insertion in model container [2018-12-01 14:51:28,454 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:51:28" (1/1) ... [2018-12-01 14:51:28,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 14:51:28,466 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 14:51:28,550 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 14:51:28,552 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 14:51:28,561 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 14:51:28,569 INFO L195 MainTranslator]: Completed translation [2018-12-01 14:51:28,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:51:28 WrapperNode [2018-12-01 14:51:28,569 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 14:51:28,570 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 14:51:28,570 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 14:51:28,570 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 14:51:28,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:51:28" (1/1) ... [2018-12-01 14:51:28,577 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:51:28" (1/1) ... [2018-12-01 14:51:28,581 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 14:51:28,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 14:51:28,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 14:51:28,581 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 14:51:28,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:51:28" (1/1) ... [2018-12-01 14:51:28,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:51:28" (1/1) ... [2018-12-01 14:51:28,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:51:28" (1/1) ... [2018-12-01 14:51:28,589 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:51:28" (1/1) ... [2018-12-01 14:51:28,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:51:28" (1/1) ... [2018-12-01 14:51:28,595 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:51:28" (1/1) ... [2018-12-01 14:51:28,596 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:51:28" (1/1) ... [2018-12-01 14:51:28,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 14:51:28,597 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 14:51:28,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 14:51:28,597 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 14:51:28,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:51:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 14:51:28,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-01 14:51:28,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-01 14:51:28,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 14:51:28,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 14:51:28,659 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-01 14:51:28,659 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-01 14:51:28,757 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 14:51:28,758 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-01 14:51:28,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:51:28 BoogieIcfgContainer [2018-12-01 14:51:28,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 14:51:28,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-01 14:51:28,759 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-01 14:51:28,760 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-01 14:51:28,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 02:51:28" (1/3) ... [2018-12-01 14:51:28,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f17f9ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 02:51:28, skipping insertion in model container [2018-12-01 14:51:28,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:51:28" (2/3) ... [2018-12-01 14:51:28,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f17f9ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 02:51:28, skipping insertion in model container [2018-12-01 14:51:28,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:51:28" (3/3) ... [2018-12-01 14:51:28,763 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-random2d_true-termination_true-no-overflow.c [2018-12-01 14:51:28,769 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-01 14:51:28,773 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2018-12-01 14:51:28,782 INFO L257 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2018-12-01 14:51:28,800 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 14:51:28,801 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-01 14:51:28,801 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-01 14:51:28,801 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-01 14:51:28,801 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 14:51:28,801 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 14:51:28,801 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-01 14:51:28,801 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 14:51:28,801 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-01 14:51:28,812 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-12-01 14:51:28,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-01 14:51:28,815 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:28,816 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:28,817 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:28,821 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:28,821 INFO L82 PathProgramCache]: Analyzing trace with hash 252417093, now seen corresponding path program 1 times [2018-12-01 14:51:28,822 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:28,823 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:28,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:28,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:51:28,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:28,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:28,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:28,903 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 14:51:28,903 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 14:51:28,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 14:51:28,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 14:51:28,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 14:51:28,915 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 3 states. [2018-12-01 14:51:28,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:28,949 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2018-12-01 14:51:28,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 14:51:28,950 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-01 14:51:28,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:28,956 INFO L225 Difference]: With dead ends: 48 [2018-12-01 14:51:28,956 INFO L226 Difference]: Without dead ends: 34 [2018-12-01 14:51:28,958 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 [2018-12-01 14:51:28,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-12-01 14:51:28,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2018-12-01 14:51:28,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-12-01 14:51:28,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2018-12-01 14:51:28,980 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 7 [2018-12-01 14:51:28,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:28,980 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2018-12-01 14:51:28,981 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 14:51:28,981 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2018-12-01 14:51:28,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-01 14:51:28,981 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:28,981 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:28,981 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:28,982 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:28,982 INFO L82 PathProgramCache]: Analyzing trace with hash -765004662, now seen corresponding path program 1 times [2018-12-01 14:51:28,982 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:28,982 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:28,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:28,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:51:28,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:28,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:28,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:28,996 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 14:51:28,996 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 14:51:28,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 14:51:28,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 14:51:28,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 14:51:28,998 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 3 states. [2018-12-01 14:51:29,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:29,004 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2018-12-01 14:51:29,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 14:51:29,005 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-12-01 14:51:29,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:29,005 INFO L225 Difference]: With dead ends: 33 [2018-12-01 14:51:29,005 INFO L226 Difference]: Without dead ends: 32 [2018-12-01 14:51:29,006 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 [2018-12-01 14:51:29,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-12-01 14:51:29,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-12-01 14:51:29,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-12-01 14:51:29,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2018-12-01 14:51:29,009 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 8 [2018-12-01 14:51:29,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:29,009 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2018-12-01 14:51:29,009 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 14:51:29,009 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2018-12-01 14:51:29,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-01 14:51:29,010 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:29,010 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:29,010 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:29,010 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:29,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1157363318, now seen corresponding path program 1 times [2018-12-01 14:51:29,010 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:29,011 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:29,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:29,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:51:29,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:29,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:29,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:29,030 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 14:51:29,030 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 14:51:29,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 14:51:29,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 14:51:29,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 14:51:29,031 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand 3 states. [2018-12-01 14:51:29,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:29,047 INFO L93 Difference]: Finished difference Result 55 states and 67 transitions. [2018-12-01 14:51:29,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 14:51:29,047 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-12-01 14:51:29,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:29,048 INFO L225 Difference]: With dead ends: 55 [2018-12-01 14:51:29,048 INFO L226 Difference]: Without dead ends: 53 [2018-12-01 14:51:29,048 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 [2018-12-01 14:51:29,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-12-01 14:51:29,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 47. [2018-12-01 14:51:29,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-12-01 14:51:29,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 63 transitions. [2018-12-01 14:51:29,052 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 63 transitions. Word has length 11 [2018-12-01 14:51:29,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:29,052 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 63 transitions. [2018-12-01 14:51:29,052 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 14:51:29,052 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 63 transitions. [2018-12-01 14:51:29,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-01 14:51:29,053 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:29,053 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:29,053 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:29,053 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:29,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1157326159, now seen corresponding path program 1 times [2018-12-01 14:51:29,054 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:29,054 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:29,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:29,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:51:29,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:29,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-01 14:51:29,077 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:29,077 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 14:51:29,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:51:29,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:29,094 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:29,114 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:29,134 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:51:29,134 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2018-12-01 14:51:29,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-01 14:51:29,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-01 14:51:29,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-01 14:51:29,135 INFO L87 Difference]: Start difference. First operand 47 states and 63 transitions. Second operand 6 states. [2018-12-01 14:51:29,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:29,172 INFO L93 Difference]: Finished difference Result 108 states and 146 transitions. [2018-12-01 14:51:29,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-01 14:51:29,173 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2018-12-01 14:51:29,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:29,174 INFO L225 Difference]: With dead ends: 108 [2018-12-01 14:51:29,174 INFO L226 Difference]: Without dead ends: 107 [2018-12-01 14:51:29,174 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-12-01 14:51:29,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2018-12-01 14:51:29,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 44. [2018-12-01 14:51:29,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-12-01 14:51:29,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 59 transitions. [2018-12-01 14:51:29,180 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 59 transitions. Word has length 11 [2018-12-01 14:51:29,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:29,180 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 59 transitions. [2018-12-01 14:51:29,180 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-01 14:51:29,181 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 59 transitions. [2018-12-01 14:51:29,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-01 14:51:29,181 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:29,181 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:29,181 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:29,182 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:29,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1518524433, now seen corresponding path program 1 times [2018-12-01 14:51:29,182 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:29,182 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:29,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:29,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:51:29,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:29,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:29,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:29,199 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 14:51:29,199 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 14:51:29,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 14:51:29,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 14:51:29,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 14:51:29,200 INFO L87 Difference]: Start difference. First operand 44 states and 59 transitions. Second operand 3 states. [2018-12-01 14:51:29,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:29,219 INFO L93 Difference]: Finished difference Result 81 states and 113 transitions. [2018-12-01 14:51:29,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 14:51:29,219 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-12-01 14:51:29,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:29,220 INFO L225 Difference]: With dead ends: 81 [2018-12-01 14:51:29,220 INFO L226 Difference]: Without dead ends: 79 [2018-12-01 14:51:29,220 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 [2018-12-01 14:51:29,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-12-01 14:51:29,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 75. [2018-12-01 14:51:29,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-12-01 14:51:29,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 110 transitions. [2018-12-01 14:51:29,227 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 110 transitions. Word has length 12 [2018-12-01 14:51:29,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:29,227 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 110 transitions. [2018-12-01 14:51:29,227 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 14:51:29,227 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 110 transitions. [2018-12-01 14:51:29,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-01 14:51:29,227 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:29,228 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:29,228 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:29,228 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:29,228 INFO L82 PathProgramCache]: Analyzing trace with hash 170574579, now seen corresponding path program 1 times [2018-12-01 14:51:29,228 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:29,228 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:29,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:29,229 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:51:29,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:29,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:29,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:29,244 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 14:51:29,244 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 14:51:29,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 14:51:29,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 14:51:29,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 14:51:29,245 INFO L87 Difference]: Start difference. First operand 75 states and 110 transitions. Second operand 3 states. [2018-12-01 14:51:29,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:29,267 INFO L93 Difference]: Finished difference Result 143 states and 215 transitions. [2018-12-01 14:51:29,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 14:51:29,267 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-12-01 14:51:29,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:29,268 INFO L225 Difference]: With dead ends: 143 [2018-12-01 14:51:29,269 INFO L226 Difference]: Without dead ends: 141 [2018-12-01 14:51:29,269 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 [2018-12-01 14:51:29,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-12-01 14:51:29,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 133. [2018-12-01 14:51:29,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2018-12-01 14:51:29,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 199 transitions. [2018-12-01 14:51:29,279 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 199 transitions. Word has length 13 [2018-12-01 14:51:29,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:29,280 INFO L480 AbstractCegarLoop]: Abstraction has 133 states and 199 transitions. [2018-12-01 14:51:29,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 14:51:29,280 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 199 transitions. [2018-12-01 14:51:29,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-01 14:51:29,280 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:29,281 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:29,281 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:29,281 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:29,281 INFO L82 PathProgramCache]: Analyzing trace with hash 992844728, now seen corresponding path program 1 times [2018-12-01 14:51:29,281 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:29,282 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:29,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:29,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:51:29,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:29,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:29,301 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 14:51:29,301 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 14:51:29,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 14:51:29,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 14:51:29,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 14:51:29,302 INFO L87 Difference]: Start difference. First operand 133 states and 199 transitions. Second operand 3 states. [2018-12-01 14:51:29,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:29,323 INFO L93 Difference]: Finished difference Result 259 states and 393 transitions. [2018-12-01 14:51:29,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 14:51:29,323 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-12-01 14:51:29,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:29,324 INFO L225 Difference]: With dead ends: 259 [2018-12-01 14:51:29,324 INFO L226 Difference]: Without dead ends: 257 [2018-12-01 14:51:29,324 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 [2018-12-01 14:51:29,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2018-12-01 14:51:29,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 253. [2018-12-01 14:51:29,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2018-12-01 14:51:29,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 381 transitions. [2018-12-01 14:51:29,333 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 381 transitions. Word has length 14 [2018-12-01 14:51:29,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:29,334 INFO L480 AbstractCegarLoop]: Abstraction has 253 states and 381 transitions. [2018-12-01 14:51:29,334 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 14:51:29,334 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 381 transitions. [2018-12-01 14:51:29,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-01 14:51:29,334 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:29,334 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:29,334 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:29,334 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:29,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1784292138, now seen corresponding path program 1 times [2018-12-01 14:51:29,335 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:29,335 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:29,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:29,335 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:51:29,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:29,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:29,353 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:29,353 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:29,353 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 14:51:29,359 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:51:29,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:29,364 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:29,366 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:29,380 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:51:29,381 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2018-12-01 14:51:29,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-01 14:51:29,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-01 14:51:29,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-01 14:51:29,381 INFO L87 Difference]: Start difference. First operand 253 states and 381 transitions. Second operand 4 states. [2018-12-01 14:51:29,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:29,408 INFO L93 Difference]: Finished difference Result 453 states and 692 transitions. [2018-12-01 14:51:29,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-01 14:51:29,409 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-12-01 14:51:29,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:29,410 INFO L225 Difference]: With dead ends: 453 [2018-12-01 14:51:29,410 INFO L226 Difference]: Without dead ends: 451 [2018-12-01 14:51:29,411 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-01 14:51:29,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2018-12-01 14:51:29,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 361. [2018-12-01 14:51:29,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2018-12-01 14:51:29,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 547 transitions. [2018-12-01 14:51:29,421 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 547 transitions. Word has length 18 [2018-12-01 14:51:29,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:29,421 INFO L480 AbstractCegarLoop]: Abstraction has 361 states and 547 transitions. [2018-12-01 14:51:29,422 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-01 14:51:29,422 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 547 transitions. [2018-12-01 14:51:29,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-01 14:51:29,422 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:29,422 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:29,422 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:29,423 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:29,423 INFO L82 PathProgramCache]: Analyzing trace with hash -457667387, now seen corresponding path program 1 times [2018-12-01 14:51:29,423 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:29,423 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:29,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:29,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:51:29,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:29,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:29,440 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:29,440 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:29,440 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 14:51:29,446 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:51:29,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:29,453 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:29,459 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:29,473 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-01 14:51:29,473 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-12-01 14:51:29,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-01 14:51:29,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-01 14:51:29,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-12-01 14:51:29,473 INFO L87 Difference]: Start difference. First operand 361 states and 547 transitions. Second operand 5 states. [2018-12-01 14:51:29,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:29,509 INFO L93 Difference]: Finished difference Result 614 states and 943 transitions. [2018-12-01 14:51:29,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-01 14:51:29,510 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-12-01 14:51:29,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:29,511 INFO L225 Difference]: With dead ends: 614 [2018-12-01 14:51:29,511 INFO L226 Difference]: Without dead ends: 612 [2018-12-01 14:51:29,511 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-12-01 14:51:29,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2018-12-01 14:51:29,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 468. [2018-12-01 14:51:29,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2018-12-01 14:51:29,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 705 transitions. [2018-12-01 14:51:29,524 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 705 transitions. Word has length 20 [2018-12-01 14:51:29,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:29,524 INFO L480 AbstractCegarLoop]: Abstraction has 468 states and 705 transitions. [2018-12-01 14:51:29,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-01 14:51:29,525 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 705 transitions. [2018-12-01 14:51:29,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-01 14:51:29,525 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:29,525 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:29,526 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:29,526 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:29,526 INFO L82 PathProgramCache]: Analyzing trace with hash -789737976, now seen corresponding path program 1 times [2018-12-01 14:51:29,526 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:29,526 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:29,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:29,527 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:51:29,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:29,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:29,546 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:29,546 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:29,546 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 14:51:29,552 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:51:29,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:29,559 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:29,562 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:29,576 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:51:29,577 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2018-12-01 14:51:29,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-01 14:51:29,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-01 14:51:29,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-01 14:51:29,577 INFO L87 Difference]: Start difference. First operand 468 states and 705 transitions. Second operand 4 states. [2018-12-01 14:51:29,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:29,620 INFO L93 Difference]: Finished difference Result 838 states and 1288 transitions. [2018-12-01 14:51:29,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-01 14:51:29,620 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-12-01 14:51:29,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:29,622 INFO L225 Difference]: With dead ends: 838 [2018-12-01 14:51:29,622 INFO L226 Difference]: Without dead ends: 836 [2018-12-01 14:51:29,623 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-01 14:51:29,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2018-12-01 14:51:29,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 672. [2018-12-01 14:51:29,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 672 states. [2018-12-01 14:51:29,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 1011 transitions. [2018-12-01 14:51:29,639 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 1011 transitions. Word has length 22 [2018-12-01 14:51:29,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:29,640 INFO L480 AbstractCegarLoop]: Abstraction has 672 states and 1011 transitions. [2018-12-01 14:51:29,640 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-01 14:51:29,640 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 1011 transitions. [2018-12-01 14:51:29,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-01 14:51:29,640 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:29,640 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:29,641 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:29,641 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:29,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1545985083, now seen corresponding path program 1 times [2018-12-01 14:51:29,641 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:29,641 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:29,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:29,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:51:29,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:29,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:29,657 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:29,658 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:29,658 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 14:51:29,664 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:51:29,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:29,670 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:29,686 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:29,701 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-01 14:51:29,701 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-12-01 14:51:29,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-01 14:51:29,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-01 14:51:29,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-12-01 14:51:29,702 INFO L87 Difference]: Start difference. First operand 672 states and 1011 transitions. Second operand 5 states. [2018-12-01 14:51:29,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:29,748 INFO L93 Difference]: Finished difference Result 1143 states and 1751 transitions. [2018-12-01 14:51:29,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-01 14:51:29,748 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2018-12-01 14:51:29,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:29,752 INFO L225 Difference]: With dead ends: 1143 [2018-12-01 14:51:29,752 INFO L226 Difference]: Without dead ends: 1141 [2018-12-01 14:51:29,753 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-12-01 14:51:29,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2018-12-01 14:51:29,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 875. [2018-12-01 14:51:29,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 875 states. [2018-12-01 14:51:29,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1301 transitions. [2018-12-01 14:51:29,789 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1301 transitions. Word has length 24 [2018-12-01 14:51:29,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:29,789 INFO L480 AbstractCegarLoop]: Abstraction has 875 states and 1301 transitions. [2018-12-01 14:51:29,789 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-01 14:51:29,789 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1301 transitions. [2018-12-01 14:51:29,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-01 14:51:29,790 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:29,790 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:29,791 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:29,791 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:29,791 INFO L82 PathProgramCache]: Analyzing trace with hash 582614026, now seen corresponding path program 2 times [2018-12-01 14:51:29,791 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:29,791 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:29,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:29,792 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:51:29,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:29,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:29,818 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:29,818 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:29,818 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 14:51:29,827 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-01 14:51:29,834 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-01 14:51:29,834 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-01 14:51:29,836 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:29,839 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:29,856 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:51:29,856 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-12-01 14:51:29,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-01 14:51:29,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-01 14:51:29,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-12-01 14:51:29,857 INFO L87 Difference]: Start difference. First operand 875 states and 1301 transitions. Second operand 5 states. [2018-12-01 14:51:29,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:29,897 INFO L93 Difference]: Finished difference Result 1508 states and 2270 transitions. [2018-12-01 14:51:29,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-01 14:51:29,898 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-12-01 14:51:29,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:29,900 INFO L225 Difference]: With dead ends: 1508 [2018-12-01 14:51:29,901 INFO L226 Difference]: Without dead ends: 1506 [2018-12-01 14:51:29,901 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-12-01 14:51:29,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2018-12-01 14:51:29,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1197. [2018-12-01 14:51:29,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1197 states. [2018-12-01 14:51:29,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1772 transitions. [2018-12-01 14:51:29,925 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1772 transitions. Word has length 25 [2018-12-01 14:51:29,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:29,925 INFO L480 AbstractCegarLoop]: Abstraction has 1197 states and 1772 transitions. [2018-12-01 14:51:29,925 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-01 14:51:29,925 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1772 transitions. [2018-12-01 14:51:29,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-01 14:51:29,926 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:29,926 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:29,926 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:29,927 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:29,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1259703649, now seen corresponding path program 1 times [2018-12-01 14:51:29,927 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:29,927 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:29,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:29,928 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:51:29,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:29,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:29,966 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:29,967 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:29,967 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 14:51:29,973 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:51:29,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:29,980 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:29,984 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:29,998 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:51:29,998 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-12-01 14:51:29,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-01 14:51:29,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-01 14:51:29,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-12-01 14:51:29,999 INFO L87 Difference]: Start difference. First operand 1197 states and 1772 transitions. Second operand 5 states. [2018-12-01 14:51:30,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:30,061 INFO L93 Difference]: Finished difference Result 1955 states and 2906 transitions. [2018-12-01 14:51:30,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-01 14:51:30,062 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2018-12-01 14:51:30,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:30,067 INFO L225 Difference]: With dead ends: 1955 [2018-12-01 14:51:30,067 INFO L226 Difference]: Without dead ends: 1954 [2018-12-01 14:51:30,069 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-12-01 14:51:30,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2018-12-01 14:51:30,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1433. [2018-12-01 14:51:30,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1433 states. [2018-12-01 14:51:30,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1433 states to 1433 states and 2118 transitions. [2018-12-01 14:51:30,123 INFO L78 Accepts]: Start accepts. Automaton has 1433 states and 2118 transitions. Word has length 29 [2018-12-01 14:51:30,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:30,123 INFO L480 AbstractCegarLoop]: Abstraction has 1433 states and 2118 transitions. [2018-12-01 14:51:30,123 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-01 14:51:30,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1433 states and 2118 transitions. [2018-12-01 14:51:30,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-01 14:51:30,124 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:30,124 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:30,125 INFO L423 AbstractCegarLoop]: === Iteration 14 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:30,125 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:30,125 INFO L82 PathProgramCache]: Analyzing trace with hash -886740333, now seen corresponding path program 2 times [2018-12-01 14:51:30,125 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:30,125 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:30,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:30,126 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:51:30,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:30,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:30,149 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:30,150 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:30,150 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 14:51:30,158 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-01 14:51:30,166 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-01 14:51:30,166 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-01 14:51:30,167 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:30,172 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:30,193 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:51:30,194 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-12-01 14:51:30,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-01 14:51:30,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-01 14:51:30,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-12-01 14:51:30,194 INFO L87 Difference]: Start difference. First operand 1433 states and 2118 transitions. Second operand 5 states. [2018-12-01 14:51:30,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:30,279 INFO L93 Difference]: Finished difference Result 2466 states and 3697 transitions. [2018-12-01 14:51:30,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-01 14:51:30,279 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2018-12-01 14:51:30,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:30,286 INFO L225 Difference]: With dead ends: 2466 [2018-12-01 14:51:30,286 INFO L226 Difference]: Without dead ends: 2464 [2018-12-01 14:51:30,287 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-12-01 14:51:30,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2464 states. [2018-12-01 14:51:30,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2464 to 1963. [2018-12-01 14:51:30,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1963 states. [2018-12-01 14:51:30,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1963 states to 1963 states and 2886 transitions. [2018-12-01 14:51:30,349 INFO L78 Accepts]: Start accepts. Automaton has 1963 states and 2886 transitions. Word has length 31 [2018-12-01 14:51:30,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:30,349 INFO L480 AbstractCegarLoop]: Abstraction has 1963 states and 2886 transitions. [2018-12-01 14:51:30,350 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-01 14:51:30,350 INFO L276 IsEmpty]: Start isEmpty. Operand 1963 states and 2886 transitions. [2018-12-01 14:51:30,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-01 14:51:30,350 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:30,350 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:30,351 INFO L423 AbstractCegarLoop]: === Iteration 15 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:30,351 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:30,351 INFO L82 PathProgramCache]: Analyzing trace with hash -716039594, now seen corresponding path program 3 times [2018-12-01 14:51:30,351 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:30,351 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:30,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:30,352 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:51:30,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:30,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:30,373 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:30,373 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:30,373 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 14:51:30,382 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-01 14:51:30,393 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-12-01 14:51:30,393 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-01 14:51:30,394 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:30,398 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:30,422 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:51:30,423 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2018-12-01 14:51:30,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-01 14:51:30,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-01 14:51:30,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-12-01 14:51:30,423 INFO L87 Difference]: Start difference. First operand 1963 states and 2886 transitions. Second operand 6 states. [2018-12-01 14:51:30,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:30,488 INFO L93 Difference]: Finished difference Result 3177 states and 4736 transitions. [2018-12-01 14:51:30,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-01 14:51:30,488 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2018-12-01 14:51:30,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:30,494 INFO L225 Difference]: With dead ends: 3177 [2018-12-01 14:51:30,494 INFO L226 Difference]: Without dead ends: 3175 [2018-12-01 14:51:30,495 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-12-01 14:51:30,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3175 states. [2018-12-01 14:51:30,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3175 to 2567. [2018-12-01 14:51:30,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2567 states. [2018-12-01 14:51:30,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2567 states to 2567 states and 3753 transitions. [2018-12-01 14:51:30,545 INFO L78 Accepts]: Start accepts. Automaton has 2567 states and 3753 transitions. Word has length 32 [2018-12-01 14:51:30,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:30,545 INFO L480 AbstractCegarLoop]: Abstraction has 2567 states and 3753 transitions. [2018-12-01 14:51:30,545 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-01 14:51:30,545 INFO L276 IsEmpty]: Start isEmpty. Operand 2567 states and 3753 transitions. [2018-12-01 14:51:30,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-12-01 14:51:30,545 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:30,546 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:30,546 INFO L423 AbstractCegarLoop]: === Iteration 16 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:30,546 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:30,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1327564892, now seen corresponding path program 1 times [2018-12-01 14:51:30,546 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:30,546 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:30,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:30,547 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:51:30,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:30,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:30,583 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:30,583 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:30,583 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/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 [2018-12-01 14:51:30,590 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:51:30,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:30,597 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:30,601 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:30,617 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:51:30,617 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-12-01 14:51:30,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-01 14:51:30,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-01 14:51:30,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-12-01 14:51:30,618 INFO L87 Difference]: Start difference. First operand 2567 states and 3753 transitions. Second operand 5 states. [2018-12-01 14:51:30,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:30,717 INFO L93 Difference]: Finished difference Result 4186 states and 6159 transitions. [2018-12-01 14:51:30,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-01 14:51:30,717 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2018-12-01 14:51:30,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:30,727 INFO L225 Difference]: With dead ends: 4186 [2018-12-01 14:51:30,728 INFO L226 Difference]: Without dead ends: 4185 [2018-12-01 14:51:30,730 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-12-01 14:51:30,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4185 states. [2018-12-01 14:51:30,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4185 to 3075. [2018-12-01 14:51:30,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3075 states. [2018-12-01 14:51:30,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3075 states to 3075 states and 4487 transitions. [2018-12-01 14:51:30,807 INFO L78 Accepts]: Start accepts. Automaton has 3075 states and 4487 transitions. Word has length 35 [2018-12-01 14:51:30,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:30,808 INFO L480 AbstractCegarLoop]: Abstraction has 3075 states and 4487 transitions. [2018-12-01 14:51:30,808 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-01 14:51:30,808 INFO L276 IsEmpty]: Start isEmpty. Operand 3075 states and 4487 transitions. [2018-12-01 14:51:30,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-01 14:51:30,809 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:30,809 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:30,810 INFO L423 AbstractCegarLoop]: === Iteration 17 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:30,810 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:30,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1468116811, now seen corresponding path program 2 times [2018-12-01 14:51:30,810 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:30,810 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:30,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:30,811 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:51:30,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:30,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:30,841 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:30,841 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:30,841 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/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 [2018-12-01 14:51:30,847 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-01 14:51:30,856 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-01 14:51:30,856 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-01 14:51:30,858 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:30,862 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:30,887 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:51:30,887 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2018-12-01 14:51:30,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-01 14:51:30,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-01 14:51:30,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-12-01 14:51:30,888 INFO L87 Difference]: Start difference. First operand 3075 states and 4487 transitions. Second operand 6 states. [2018-12-01 14:51:30,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:30,970 INFO L93 Difference]: Finished difference Result 4731 states and 6951 transitions. [2018-12-01 14:51:30,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-01 14:51:30,970 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2018-12-01 14:51:30,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:30,981 INFO L225 Difference]: With dead ends: 4731 [2018-12-01 14:51:30,981 INFO L226 Difference]: Without dead ends: 4730 [2018-12-01 14:51:30,984 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-12-01 14:51:30,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4730 states. [2018-12-01 14:51:31,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4730 to 3463. [2018-12-01 14:51:31,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3463 states. [2018-12-01 14:51:31,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3463 states to 3463 states and 5051 transitions. [2018-12-01 14:51:31,048 INFO L78 Accepts]: Start accepts. Automaton has 3463 states and 5051 transitions. Word has length 37 [2018-12-01 14:51:31,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:31,048 INFO L480 AbstractCegarLoop]: Abstraction has 3463 states and 5051 transitions. [2018-12-01 14:51:31,048 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-01 14:51:31,048 INFO L276 IsEmpty]: Start isEmpty. Operand 3463 states and 5051 transitions. [2018-12-01 14:51:31,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-12-01 14:51:31,049 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:31,049 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:31,049 INFO L423 AbstractCegarLoop]: === Iteration 18 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:31,050 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:31,050 INFO L82 PathProgramCache]: Analyzing trace with hash -1042968950, now seen corresponding path program 4 times [2018-12-01 14:51:31,050 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:31,050 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:31,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:31,051 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:51:31,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:31,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:31,095 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:31,095 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:31,095 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/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 [2018-12-01 14:51:31,101 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-01 14:51:31,112 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-01 14:51:31,112 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-01 14:51:31,114 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:31,118 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:31,143 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:51:31,143 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-12-01 14:51:31,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-01 14:51:31,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-01 14:51:31,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-12-01 14:51:31,143 INFO L87 Difference]: Start difference. First operand 3463 states and 5051 transitions. Second operand 7 states. [2018-12-01 14:51:31,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:31,237 INFO L93 Difference]: Finished difference Result 5330 states and 7888 transitions. [2018-12-01 14:51:31,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-01 14:51:31,237 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2018-12-01 14:51:31,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:31,245 INFO L225 Difference]: With dead ends: 5330 [2018-12-01 14:51:31,246 INFO L226 Difference]: Without dead ends: 5328 [2018-12-01 14:51:31,248 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-12-01 14:51:31,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5328 states. [2018-12-01 14:51:31,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5328 to 4381. [2018-12-01 14:51:31,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4381 states. [2018-12-01 14:51:31,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4381 states to 4381 states and 6357 transitions. [2018-12-01 14:51:31,331 INFO L78 Accepts]: Start accepts. Automaton has 4381 states and 6357 transitions. Word has length 39 [2018-12-01 14:51:31,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:31,331 INFO L480 AbstractCegarLoop]: Abstraction has 4381 states and 6357 transitions. [2018-12-01 14:51:31,331 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-01 14:51:31,331 INFO L276 IsEmpty]: Start isEmpty. Operand 4381 states and 6357 transitions. [2018-12-01 14:51:31,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-12-01 14:51:31,332 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:31,332 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:31,332 INFO L423 AbstractCegarLoop]: === Iteration 19 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:31,332 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:31,332 INFO L82 PathProgramCache]: Analyzing trace with hash 535132776, now seen corresponding path program 3 times [2018-12-01 14:51:31,333 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:31,333 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:31,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:31,333 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:51:31,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:31,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:31,353 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:31,353 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:31,354 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/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 [2018-12-01 14:51:31,360 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-01 14:51:31,367 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-12-01 14:51:31,368 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-01 14:51:31,369 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:31,372 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:31,387 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:51:31,387 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2018-12-01 14:51:31,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-01 14:51:31,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-01 14:51:31,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-12-01 14:51:31,388 INFO L87 Difference]: Start difference. First operand 4381 states and 6357 transitions. Second operand 6 states. [2018-12-01 14:51:31,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:31,483 INFO L93 Difference]: Finished difference Result 7073 states and 10429 transitions. [2018-12-01 14:51:31,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-01 14:51:31,483 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2018-12-01 14:51:31,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:31,493 INFO L225 Difference]: With dead ends: 7073 [2018-12-01 14:51:31,494 INFO L226 Difference]: Without dead ends: 7071 [2018-12-01 14:51:31,496 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 [2018-12-01 14:51:31,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7071 states. [2018-12-01 14:51:31,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7071 to 5733. [2018-12-01 14:51:31,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5733 states. [2018-12-01 14:51:31,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5733 states to 5733 states and 8269 transitions. [2018-12-01 14:51:31,583 INFO L78 Accepts]: Start accepts. Automaton has 5733 states and 8269 transitions. Word has length 40 [2018-12-01 14:51:31,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:31,583 INFO L480 AbstractCegarLoop]: Abstraction has 5733 states and 8269 transitions. [2018-12-01 14:51:31,583 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-01 14:51:31,583 INFO L276 IsEmpty]: Start isEmpty. Operand 5733 states and 8269 transitions. [2018-12-01 14:51:31,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-12-01 14:51:31,584 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:31,584 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:31,584 INFO L423 AbstractCegarLoop]: === Iteration 20 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:31,585 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:31,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1865791691, now seen corresponding path program 3 times [2018-12-01 14:51:31,585 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:31,585 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:31,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:31,586 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:51:31,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:31,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:31,611 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:31,612 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:31,612 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/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 [2018-12-01 14:51:31,618 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-01 14:51:31,626 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2018-12-01 14:51:31,626 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-01 14:51:31,627 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:31,631 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:31,646 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:51:31,646 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-12-01 14:51:31,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-01 14:51:31,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-01 14:51:31,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-12-01 14:51:31,646 INFO L87 Difference]: Start difference. First operand 5733 states and 8269 transitions. Second operand 7 states. [2018-12-01 14:51:31,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:31,753 INFO L93 Difference]: Finished difference Result 8442 states and 12279 transitions. [2018-12-01 14:51:31,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-01 14:51:31,754 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2018-12-01 14:51:31,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:31,762 INFO L225 Difference]: With dead ends: 8442 [2018-12-01 14:51:31,762 INFO L226 Difference]: Without dead ends: 8441 [2018-12-01 14:51:31,765 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-12-01 14:51:31,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8441 states. [2018-12-01 14:51:31,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8441 to 6241. [2018-12-01 14:51:31,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6241 states. [2018-12-01 14:51:31,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6241 states to 6241 states and 9003 transitions. [2018-12-01 14:51:31,864 INFO L78 Accepts]: Start accepts. Automaton has 6241 states and 9003 transitions. Word has length 45 [2018-12-01 14:51:31,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:31,864 INFO L480 AbstractCegarLoop]: Abstraction has 6241 states and 9003 transitions. [2018-12-01 14:51:31,864 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-01 14:51:31,864 INFO L276 IsEmpty]: Start isEmpty. Operand 6241 states and 9003 transitions. [2018-12-01 14:51:31,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-12-01 14:51:31,865 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:31,865 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:31,865 INFO L423 AbstractCegarLoop]: === Iteration 21 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:31,865 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:31,866 INFO L82 PathProgramCache]: Analyzing trace with hash 702806639, now seen corresponding path program 2 times [2018-12-01 14:51:31,866 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:31,866 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:31,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:31,866 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:51:31,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:31,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:31,897 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:31,898 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:31,898 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/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 [2018-12-01 14:51:31,904 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-01 14:51:31,912 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-01 14:51:31,912 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-01 14:51:31,913 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:31,918 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:31,942 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:51:31,942 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2018-12-01 14:51:31,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-01 14:51:31,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-01 14:51:31,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-12-01 14:51:31,943 INFO L87 Difference]: Start difference. First operand 6241 states and 9003 transitions. Second operand 6 states. [2018-12-01 14:51:32,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:32,077 INFO L93 Difference]: Finished difference Result 9588 states and 13947 transitions. [2018-12-01 14:51:32,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-01 14:51:32,078 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2018-12-01 14:51:32,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:32,087 INFO L225 Difference]: With dead ends: 9588 [2018-12-01 14:51:32,087 INFO L226 Difference]: Without dead ends: 9587 [2018-12-01 14:51:32,090 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-12-01 14:51:32,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9587 states. [2018-12-01 14:51:32,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9587 to 7029. [2018-12-01 14:51:32,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7029 states. [2018-12-01 14:51:32,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7029 states to 7029 states and 10135 transitions. [2018-12-01 14:51:32,230 INFO L78 Accepts]: Start accepts. Automaton has 7029 states and 10135 transitions. Word has length 45 [2018-12-01 14:51:32,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:32,230 INFO L480 AbstractCegarLoop]: Abstraction has 7029 states and 10135 transitions. [2018-12-01 14:51:32,230 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-01 14:51:32,231 INFO L276 IsEmpty]: Start isEmpty. Operand 7029 states and 10135 transitions. [2018-12-01 14:51:32,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-01 14:51:32,231 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:32,231 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:32,232 INFO L423 AbstractCegarLoop]: === Iteration 22 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:32,232 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:32,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1845802966, now seen corresponding path program 5 times [2018-12-01 14:51:32,232 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:32,232 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:32,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:32,233 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:51:32,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:32,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:32,277 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:32,277 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:32,277 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/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 [2018-12-01 14:51:32,284 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-12-01 14:51:32,293 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2018-12-01 14:51:32,293 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-01 14:51:32,294 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:32,298 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:32,312 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:51:32,313 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-12-01 14:51:32,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-01 14:51:32,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-01 14:51:32,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-12-01 14:51:32,313 INFO L87 Difference]: Start difference. First operand 7029 states and 10135 transitions. Second operand 8 states. [2018-12-01 14:51:32,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:32,438 INFO L93 Difference]: Finished difference Result 10385 states and 15210 transitions. [2018-12-01 14:51:32,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-01 14:51:32,439 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 46 [2018-12-01 14:51:32,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:32,446 INFO L225 Difference]: With dead ends: 10385 [2018-12-01 14:51:32,446 INFO L226 Difference]: Without dead ends: 10383 [2018-12-01 14:51:32,450 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-12-01 14:51:32,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10383 states. [2018-12-01 14:51:32,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10383 to 8669. [2018-12-01 14:51:32,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8669 states. [2018-12-01 14:51:32,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8669 states to 8669 states and 12442 transitions. [2018-12-01 14:51:32,580 INFO L78 Accepts]: Start accepts. Automaton has 8669 states and 12442 transitions. Word has length 46 [2018-12-01 14:51:32,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:32,580 INFO L480 AbstractCegarLoop]: Abstraction has 8669 states and 12442 transitions. [2018-12-01 14:51:32,580 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-01 14:51:32,580 INFO L276 IsEmpty]: Start isEmpty. Operand 8669 states and 12442 transitions. [2018-12-01 14:51:32,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-12-01 14:51:32,581 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:32,582 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:32,582 INFO L423 AbstractCegarLoop]: === Iteration 23 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:32,582 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:32,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1310627277, now seen corresponding path program 4 times [2018-12-01 14:51:32,582 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:32,582 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:32,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:32,583 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:51:32,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:32,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:32,625 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:32,625 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:32,625 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/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 [2018-12-01 14:51:32,631 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-01 14:51:32,638 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-01 14:51:32,638 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-01 14:51:32,639 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:32,641 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:32,656 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:51:32,656 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-12-01 14:51:32,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-01 14:51:32,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-01 14:51:32,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-12-01 14:51:32,657 INFO L87 Difference]: Start difference. First operand 8669 states and 12442 transitions. Second operand 7 states. [2018-12-01 14:51:32,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:32,801 INFO L93 Difference]: Finished difference Result 13316 states and 19433 transitions. [2018-12-01 14:51:32,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-01 14:51:32,801 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 49 [2018-12-01 14:51:32,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:32,811 INFO L225 Difference]: With dead ends: 13316 [2018-12-01 14:51:32,811 INFO L226 Difference]: Without dead ends: 13314 [2018-12-01 14:51:32,815 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-12-01 14:51:32,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13314 states. [2018-12-01 14:51:32,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13314 to 10971. [2018-12-01 14:51:32,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10971 states. [2018-12-01 14:51:32,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10971 states to 10971 states and 15661 transitions. [2018-12-01 14:51:32,996 INFO L78 Accepts]: Start accepts. Automaton has 10971 states and 15661 transitions. Word has length 49 [2018-12-01 14:51:32,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:32,996 INFO L480 AbstractCegarLoop]: Abstraction has 10971 states and 15661 transitions. [2018-12-01 14:51:32,996 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-01 14:51:32,996 INFO L276 IsEmpty]: Start isEmpty. Operand 10971 states and 15661 transitions. [2018-12-01 14:51:32,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-12-01 14:51:32,998 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:32,998 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:32,998 INFO L423 AbstractCegarLoop]: === Iteration 24 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:32,998 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:32,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1711194378, now seen corresponding path program 6 times [2018-12-01 14:51:32,998 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:32,998 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:32,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:32,999 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:51:32,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:33,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:33,056 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:33,056 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:33,056 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/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 [2018-12-01 14:51:33,063 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-12-01 14:51:33,073 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2018-12-01 14:51:33,073 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-01 14:51:33,074 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:33,078 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:33,093 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:51:33,093 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2018-12-01 14:51:33,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-01 14:51:33,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-01 14:51:33,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-12-01 14:51:33,093 INFO L87 Difference]: Start difference. First operand 10971 states and 15661 transitions. Second operand 9 states. [2018-12-01 14:51:33,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:33,275 INFO L93 Difference]: Finished difference Result 15626 states and 22669 transitions. [2018-12-01 14:51:33,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-01 14:51:33,275 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 53 [2018-12-01 14:51:33,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:33,286 INFO L225 Difference]: With dead ends: 15626 [2018-12-01 14:51:33,286 INFO L226 Difference]: Without dead ends: 15624 [2018-12-01 14:51:33,290 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-12-01 14:51:33,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15624 states. [2018-12-01 14:51:33,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15624 to 13095. [2018-12-01 14:51:33,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13095 states. [2018-12-01 14:51:33,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13095 states to 13095 states and 18613 transitions. [2018-12-01 14:51:33,489 INFO L78 Accepts]: Start accepts. Automaton has 13095 states and 18613 transitions. Word has length 53 [2018-12-01 14:51:33,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:33,489 INFO L480 AbstractCegarLoop]: Abstraction has 13095 states and 18613 transitions. [2018-12-01 14:51:33,489 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-01 14:51:33,489 INFO L276 IsEmpty]: Start isEmpty. Operand 13095 states and 18613 transitions. [2018-12-01 14:51:33,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-12-01 14:51:33,491 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:33,491 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:33,491 INFO L423 AbstractCegarLoop]: === Iteration 25 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:33,491 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:33,491 INFO L82 PathProgramCache]: Analyzing trace with hash -434547425, now seen corresponding path program 4 times [2018-12-01 14:51:33,491 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:33,491 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:33,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:33,492 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:51:33,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:33,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:33,554 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:33,554 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:33,554 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/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 [2018-12-01 14:51:33,559 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-01 14:51:33,566 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-01 14:51:33,567 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-01 14:51:33,567 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:33,571 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:33,585 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:51:33,586 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-12-01 14:51:33,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-01 14:51:33,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-01 14:51:33,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-12-01 14:51:33,586 INFO L87 Difference]: Start difference. First operand 13095 states and 18613 transitions. Second operand 8 states. [2018-12-01 14:51:33,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:33,800 INFO L93 Difference]: Finished difference Result 19894 states and 28525 transitions. [2018-12-01 14:51:33,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-01 14:51:33,801 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2018-12-01 14:51:33,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:33,815 INFO L225 Difference]: With dead ends: 19894 [2018-12-01 14:51:33,815 INFO L226 Difference]: Without dead ends: 19893 [2018-12-01 14:51:33,821 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-12-01 14:51:33,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19893 states. [2018-12-01 14:51:34,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19893 to 14133. [2018-12-01 14:51:34,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14133 states. [2018-12-01 14:51:34,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14133 states to 14133 states and 20101 transitions. [2018-12-01 14:51:34,080 INFO L78 Accepts]: Start accepts. Automaton has 14133 states and 20101 transitions. Word has length 53 [2018-12-01 14:51:34,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:34,080 INFO L480 AbstractCegarLoop]: Abstraction has 14133 states and 20101 transitions. [2018-12-01 14:51:34,080 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-01 14:51:34,080 INFO L276 IsEmpty]: Start isEmpty. Operand 14133 states and 20101 transitions. [2018-12-01 14:51:34,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-12-01 14:51:34,081 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:34,081 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:34,081 INFO L423 AbstractCegarLoop]: === Iteration 26 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:34,081 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:34,082 INFO L82 PathProgramCache]: Analyzing trace with hash 941207746, now seen corresponding path program 3 times [2018-12-01 14:51:34,082 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:34,082 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:34,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:34,082 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:51:34,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:34,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:34,110 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:34,110 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:34,110 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/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 [2018-12-01 14:51:34,119 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-01 14:51:34,128 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2018-12-01 14:51:34,128 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-01 14:51:34,129 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:34,132 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:34,147 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:51:34,147 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-12-01 14:51:34,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-01 14:51:34,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-01 14:51:34,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-12-01 14:51:34,148 INFO L87 Difference]: Start difference. First operand 14133 states and 20101 transitions. Second operand 7 states. [2018-12-01 14:51:34,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:34,406 INFO L93 Difference]: Finished difference Result 20778 states and 29841 transitions. [2018-12-01 14:51:34,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-01 14:51:34,406 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 55 [2018-12-01 14:51:34,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:34,421 INFO L225 Difference]: With dead ends: 20778 [2018-12-01 14:51:34,421 INFO L226 Difference]: Without dead ends: 20777 [2018-12-01 14:51:34,426 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-12-01 14:51:34,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20777 states. [2018-12-01 14:51:34,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20777 to 15385. [2018-12-01 14:51:34,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15385 states. [2018-12-01 14:51:34,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15385 states to 15385 states and 21885 transitions. [2018-12-01 14:51:34,685 INFO L78 Accepts]: Start accepts. Automaton has 15385 states and 21885 transitions. Word has length 55 [2018-12-01 14:51:34,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:34,686 INFO L480 AbstractCegarLoop]: Abstraction has 15385 states and 21885 transitions. [2018-12-01 14:51:34,686 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-01 14:51:34,686 INFO L276 IsEmpty]: Start isEmpty. Operand 15385 states and 21885 transitions. [2018-12-01 14:51:34,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-12-01 14:51:34,687 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:34,687 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:34,687 INFO L423 AbstractCegarLoop]: === Iteration 27 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:34,687 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:34,687 INFO L82 PathProgramCache]: Analyzing trace with hash 1897860808, now seen corresponding path program 5 times [2018-12-01 14:51:34,687 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:34,687 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:34,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:34,688 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:51:34,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:34,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:34,744 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:34,744 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:34,744 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/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 [2018-12-01 14:51:34,750 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-12-01 14:51:34,759 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2018-12-01 14:51:34,759 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-01 14:51:34,760 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:34,763 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:34,778 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:51:34,778 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-12-01 14:51:34,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-01 14:51:34,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-01 14:51:34,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-12-01 14:51:34,778 INFO L87 Difference]: Start difference. First operand 15385 states and 21885 transitions. Second operand 8 states. [2018-12-01 14:51:35,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:35,027 INFO L93 Difference]: Finished difference Result 22701 states and 32845 transitions. [2018-12-01 14:51:35,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-01 14:51:35,027 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2018-12-01 14:51:35,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:35,043 INFO L225 Difference]: With dead ends: 22701 [2018-12-01 14:51:35,043 INFO L226 Difference]: Without dead ends: 22699 [2018-12-01 14:51:35,046 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-12-01 14:51:35,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22699 states. [2018-12-01 14:51:35,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22699 to 18977. [2018-12-01 14:51:35,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18977 states. [2018-12-01 14:51:35,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18977 states to 18977 states and 26868 transitions. [2018-12-01 14:51:35,357 INFO L78 Accepts]: Start accepts. Automaton has 18977 states and 26868 transitions. Word has length 58 [2018-12-01 14:51:35,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:35,358 INFO L480 AbstractCegarLoop]: Abstraction has 18977 states and 26868 transitions. [2018-12-01 14:51:35,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-01 14:51:35,358 INFO L276 IsEmpty]: Start isEmpty. Operand 18977 states and 26868 transitions. [2018-12-01 14:51:35,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-12-01 14:51:35,359 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:35,359 INFO L402 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:35,359 INFO L423 AbstractCegarLoop]: === Iteration 28 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:35,359 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:35,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1695921494, now seen corresponding path program 7 times [2018-12-01 14:51:35,359 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:35,359 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:35,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:35,360 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:51:35,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:35,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:35,422 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:35,422 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:35,422 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/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 [2018-12-01 14:51:35,428 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:51:35,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:35,437 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:35,441 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:35,457 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:51:35,458 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2018-12-01 14:51:35,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-01 14:51:35,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-01 14:51:35,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-12-01 14:51:35,458 INFO L87 Difference]: Start difference. First operand 18977 states and 26868 transitions. Second operand 10 states. [2018-12-01 14:51:35,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:35,767 INFO L93 Difference]: Finished difference Result 26255 states and 37782 transitions. [2018-12-01 14:51:35,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-01 14:51:35,767 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 60 [2018-12-01 14:51:35,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:35,788 INFO L225 Difference]: With dead ends: 26255 [2018-12-01 14:51:35,789 INFO L226 Difference]: Without dead ends: 26253 [2018-12-01 14:51:35,794 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 [2018-12-01 14:51:35,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26253 states. [2018-12-01 14:51:36,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26253 to 22315. [2018-12-01 14:51:36,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22315 states. [2018-12-01 14:51:36,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22315 states to 22315 states and 31477 transitions. [2018-12-01 14:51:36,189 INFO L78 Accepts]: Start accepts. Automaton has 22315 states and 31477 transitions. Word has length 60 [2018-12-01 14:51:36,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:36,189 INFO L480 AbstractCegarLoop]: Abstraction has 22315 states and 31477 transitions. [2018-12-01 14:51:36,189 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-01 14:51:36,189 INFO L276 IsEmpty]: Start isEmpty. Operand 22315 states and 31477 transitions. [2018-12-01 14:51:36,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-12-01 14:51:36,191 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:36,191 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:36,191 INFO L423 AbstractCegarLoop]: === Iteration 29 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:36,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:36,192 INFO L82 PathProgramCache]: Analyzing trace with hash 2090391817, now seen corresponding path program 5 times [2018-12-01 14:51:36,192 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:36,192 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:36,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:36,192 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:51:36,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:36,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:36,263 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:36,263 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:36,263 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/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 [2018-12-01 14:51:36,270 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-12-01 14:51:36,282 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2018-12-01 14:51:36,282 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-01 14:51:36,283 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:36,287 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:36,302 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:51:36,302 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2018-12-01 14:51:36,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-01 14:51:36,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-01 14:51:36,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-12-01 14:51:36,302 INFO L87 Difference]: Start difference. First operand 22315 states and 31477 transitions. Second operand 9 states. [2018-12-01 14:51:36,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:36,678 INFO L93 Difference]: Finished difference Result 32959 states and 46936 transitions. [2018-12-01 14:51:36,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-01 14:51:36,679 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 61 [2018-12-01 14:51:36,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:36,703 INFO L225 Difference]: With dead ends: 32959 [2018-12-01 14:51:36,703 INFO L226 Difference]: Without dead ends: 32958 [2018-12-01 14:51:36,709 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-12-01 14:51:36,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32958 states. [2018-12-01 14:51:37,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32958 to 23709. [2018-12-01 14:51:37,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23709 states. [2018-12-01 14:51:37,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23709 states to 23709 states and 33466 transitions. [2018-12-01 14:51:37,167 INFO L78 Accepts]: Start accepts. Automaton has 23709 states and 33466 transitions. Word has length 61 [2018-12-01 14:51:37,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:37,167 INFO L480 AbstractCegarLoop]: Abstraction has 23709 states and 33466 transitions. [2018-12-01 14:51:37,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-01 14:51:37,167 INFO L276 IsEmpty]: Start isEmpty. Operand 23709 states and 33466 transitions. [2018-12-01 14:51:37,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-12-01 14:51:37,169 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:37,169 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:37,169 INFO L423 AbstractCegarLoop]: === Iteration 30 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:37,169 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:37,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1521886379, now seen corresponding path program 4 times [2018-12-01 14:51:37,169 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:37,169 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:37,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:37,170 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:51:37,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:37,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:37,221 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:37,221 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:37,221 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/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 [2018-12-01 14:51:37,227 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-01 14:51:37,237 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-01 14:51:37,237 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-01 14:51:37,238 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:37,243 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:37,268 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:51:37,268 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-12-01 14:51:37,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-01 14:51:37,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-01 14:51:37,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-12-01 14:51:37,269 INFO L87 Difference]: Start difference. First operand 23709 states and 33466 transitions. Second operand 8 states. [2018-12-01 14:51:37,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:37,630 INFO L93 Difference]: Finished difference Result 33673 states and 48022 transitions. [2018-12-01 14:51:37,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-01 14:51:37,631 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2018-12-01 14:51:37,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:37,655 INFO L225 Difference]: With dead ends: 33673 [2018-12-01 14:51:37,655 INFO L226 Difference]: Without dead ends: 33672 [2018-12-01 14:51:37,661 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-12-01 14:51:37,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33672 states. [2018-12-01 14:51:38,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33672 to 25273. [2018-12-01 14:51:38,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25273 states. [2018-12-01 14:51:38,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25273 states to 25273 states and 35688 transitions. [2018-12-01 14:51:38,125 INFO L78 Accepts]: Start accepts. Automaton has 25273 states and 35688 transitions. Word has length 65 [2018-12-01 14:51:38,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:38,125 INFO L480 AbstractCegarLoop]: Abstraction has 25273 states and 35688 transitions. [2018-12-01 14:51:38,125 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-01 14:51:38,125 INFO L276 IsEmpty]: Start isEmpty. Operand 25273 states and 35688 transitions. [2018-12-01 14:51:38,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-12-01 14:51:38,127 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:38,127 INFO L402 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:38,127 INFO L423 AbstractCegarLoop]: === Iteration 31 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:38,127 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:38,127 INFO L82 PathProgramCache]: Analyzing trace with hash -690121846, now seen corresponding path program 8 times [2018-12-01 14:51:38,127 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:38,127 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:38,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:38,128 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:51:38,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:38,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:38,186 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:38,186 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:38,186 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/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 [2018-12-01 14:51:38,193 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-01 14:51:38,202 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-01 14:51:38,202 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-01 14:51:38,203 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:38,209 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:38,223 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:51:38,223 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2018-12-01 14:51:38,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-01 14:51:38,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-01 14:51:38,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-12-01 14:51:38,224 INFO L87 Difference]: Start difference. First operand 25273 states and 35688 transitions. Second operand 11 states. [2018-12-01 14:51:38,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:38,710 INFO L93 Difference]: Finished difference Result 34134 states and 48972 transitions. [2018-12-01 14:51:38,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-01 14:51:38,710 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 67 [2018-12-01 14:51:38,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:38,735 INFO L225 Difference]: With dead ends: 34134 [2018-12-01 14:51:38,735 INFO L226 Difference]: Without dead ends: 34132 [2018-12-01 14:51:38,740 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-12-01 14:51:38,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34132 states. [2018-12-01 14:51:39,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34132 to 29349. [2018-12-01 14:51:39,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29349 states. [2018-12-01 14:51:39,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29349 states to 29349 states and 41310 transitions. [2018-12-01 14:51:39,257 INFO L78 Accepts]: Start accepts. Automaton has 29349 states and 41310 transitions. Word has length 67 [2018-12-01 14:51:39,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:39,257 INFO L480 AbstractCegarLoop]: Abstraction has 29349 states and 41310 transitions. [2018-12-01 14:51:39,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-01 14:51:39,257 INFO L276 IsEmpty]: Start isEmpty. Operand 29349 states and 41310 transitions. [2018-12-01 14:51:39,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-12-01 14:51:39,259 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:39,259 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:39,259 INFO L423 AbstractCegarLoop]: === Iteration 32 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:39,259 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:39,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1044856365, now seen corresponding path program 6 times [2018-12-01 14:51:39,260 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:39,260 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:39,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:39,260 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:51:39,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:39,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:39,300 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:39,300 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:39,300 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/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 [2018-12-01 14:51:39,308 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-12-01 14:51:39,324 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2018-12-01 14:51:39,324 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-01 14:51:39,325 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:39,329 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:39,343 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:51:39,343 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2018-12-01 14:51:39,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-01 14:51:39,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-01 14:51:39,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-12-01 14:51:39,344 INFO L87 Difference]: Start difference. First operand 29349 states and 41310 transitions. Second operand 9 states. [2018-12-01 14:51:39,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:39,845 INFO L93 Difference]: Finished difference Result 41884 states and 59975 transitions. [2018-12-01 14:51:39,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-01 14:51:39,846 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2018-12-01 14:51:39,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:39,874 INFO L225 Difference]: With dead ends: 41884 [2018-12-01 14:51:39,874 INFO L226 Difference]: Without dead ends: 41882 [2018-12-01 14:51:39,879 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-12-01 14:51:39,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41882 states. [2018-12-01 14:51:40,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41882 to 35469. [2018-12-01 14:51:40,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35469 states. [2018-12-01 14:51:40,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35469 states to 35469 states and 49722 transitions. [2018-12-01 14:51:40,497 INFO L78 Accepts]: Start accepts. Automaton has 35469 states and 49722 transitions. Word has length 67 [2018-12-01 14:51:40,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:40,497 INFO L480 AbstractCegarLoop]: Abstraction has 35469 states and 49722 transitions. [2018-12-01 14:51:40,497 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-01 14:51:40,497 INFO L276 IsEmpty]: Start isEmpty. Operand 35469 states and 49722 transitions. [2018-12-01 14:51:40,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-12-01 14:51:40,499 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:40,499 INFO L402 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:40,499 INFO L423 AbstractCegarLoop]: === Iteration 33 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:40,499 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:40,500 INFO L82 PathProgramCache]: Analyzing trace with hash -1351429389, now seen corresponding path program 6 times [2018-12-01 14:51:40,500 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:40,500 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:40,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:40,500 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:51:40,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:40,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:40,572 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:40,572 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:40,572 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/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 [2018-12-01 14:51:40,579 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-12-01 14:51:40,589 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2018-12-01 14:51:40,589 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-01 14:51:40,590 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:40,595 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:40,610 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:51:40,610 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2018-12-01 14:51:40,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-01 14:51:40,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-01 14:51:40,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-12-01 14:51:40,611 INFO L87 Difference]: Start difference. First operand 35469 states and 49722 transitions. Second operand 10 states. [2018-12-01 14:51:41,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:41,161 INFO L93 Difference]: Finished difference Result 51133 states and 72401 transitions. [2018-12-01 14:51:41,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-01 14:51:41,162 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 69 [2018-12-01 14:51:41,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:41,205 INFO L225 Difference]: With dead ends: 51133 [2018-12-01 14:51:41,205 INFO L226 Difference]: Without dead ends: 51132 [2018-12-01 14:51:41,215 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-12-01 14:51:41,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51132 states. [2018-12-01 14:51:41,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51132 to 37265. [2018-12-01 14:51:41,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37265 states. [2018-12-01 14:51:42,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37265 states to 37265 states and 52275 transitions. [2018-12-01 14:51:42,012 INFO L78 Accepts]: Start accepts. Automaton has 37265 states and 52275 transitions. Word has length 69 [2018-12-01 14:51:42,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:42,012 INFO L480 AbstractCegarLoop]: Abstraction has 37265 states and 52275 transitions. [2018-12-01 14:51:42,012 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-01 14:51:42,012 INFO L276 IsEmpty]: Start isEmpty. Operand 37265 states and 52275 transitions. [2018-12-01 14:51:42,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-12-01 14:51:42,015 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:42,015 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:42,015 INFO L423 AbstractCegarLoop]: === Iteration 34 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:42,015 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:42,015 INFO L82 PathProgramCache]: Analyzing trace with hash -2049109290, now seen corresponding path program 9 times [2018-12-01 14:51:42,015 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:42,015 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:42,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:42,016 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:51:42,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:42,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:42,076 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:42,076 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:42,076 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/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 [2018-12-01 14:51:42,084 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-01 14:51:42,097 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2018-12-01 14:51:42,097 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-01 14:51:42,098 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:42,104 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:42,118 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:51:42,118 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2018-12-01 14:51:42,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-01 14:51:42,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-01 14:51:42,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-12-01 14:51:42,119 INFO L87 Difference]: Start difference. First operand 37265 states and 52275 transitions. Second operand 12 states. [2018-12-01 14:51:42,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:42,676 INFO L93 Difference]: Finished difference Result 49303 states and 70258 transitions. [2018-12-01 14:51:42,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-01 14:51:42,677 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 74 [2018-12-01 14:51:42,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:42,718 INFO L225 Difference]: With dead ends: 49303 [2018-12-01 14:51:42,718 INFO L226 Difference]: Without dead ends: 49301 [2018-12-01 14:51:42,726 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-12-01 14:51:42,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49301 states. [2018-12-01 14:51:43,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49301 to 42817. [2018-12-01 14:51:43,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42817 states. [2018-12-01 14:51:43,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42817 states to 42817 states and 59893 transitions. [2018-12-01 14:51:43,553 INFO L78 Accepts]: Start accepts. Automaton has 42817 states and 59893 transitions. Word has length 74 [2018-12-01 14:51:43,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:43,553 INFO L480 AbstractCegarLoop]: Abstraction has 42817 states and 59893 transitions. [2018-12-01 14:51:43,553 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-01 14:51:43,553 INFO L276 IsEmpty]: Start isEmpty. Operand 42817 states and 59893 transitions. [2018-12-01 14:51:43,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-12-01 14:51:43,556 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:43,556 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:43,556 INFO L423 AbstractCegarLoop]: === Iteration 35 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:43,556 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:43,556 INFO L82 PathProgramCache]: Analyzing trace with hash 1528834600, now seen corresponding path program 5 times [2018-12-01 14:51:43,556 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:43,556 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:43,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:43,557 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:51:43,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:43,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:43,600 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:43,600 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:43,600 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/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 [2018-12-01 14:51:43,609 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-12-01 14:51:43,623 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2018-12-01 14:51:43,623 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-01 14:51:43,624 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:43,632 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:43,656 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:51:43,656 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2018-12-01 14:51:43,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-01 14:51:43,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-01 14:51:43,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-12-01 14:51:43,657 INFO L87 Difference]: Start difference. First operand 42817 states and 59893 transitions. Second operand 9 states. [2018-12-01 14:51:44,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:44,312 INFO L93 Difference]: Finished difference Result 59106 states and 83567 transitions. [2018-12-01 14:51:44,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-01 14:51:44,313 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 75 [2018-12-01 14:51:44,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:44,362 INFO L225 Difference]: With dead ends: 59106 [2018-12-01 14:51:44,362 INFO L226 Difference]: Without dead ends: 59105 [2018-12-01 14:51:44,372 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-12-01 14:51:44,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59105 states. [2018-12-01 14:51:45,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59105 to 45009. [2018-12-01 14:51:45,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45009 states. [2018-12-01 14:51:45,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45009 states to 45009 states and 62991 transitions. [2018-12-01 14:51:45,263 INFO L78 Accepts]: Start accepts. Automaton has 45009 states and 62991 transitions. Word has length 75 [2018-12-01 14:51:45,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:45,263 INFO L480 AbstractCegarLoop]: Abstraction has 45009 states and 62991 transitions. [2018-12-01 14:51:45,263 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-01 14:51:45,264 INFO L276 IsEmpty]: Start isEmpty. Operand 45009 states and 62991 transitions. [2018-12-01 14:51:45,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-12-01 14:51:45,267 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:45,267 INFO L402 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:45,268 INFO L423 AbstractCegarLoop]: === Iteration 36 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:45,268 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:45,268 INFO L82 PathProgramCache]: Analyzing trace with hash -427799768, now seen corresponding path program 7 times [2018-12-01 14:51:45,268 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:45,268 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:45,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:45,269 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:51:45,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:45,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:45,361 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:45,362 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:45,362 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/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 [2018-12-01 14:51:45,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:51:45,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:45,379 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:45,384 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:45,398 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:51:45,398 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2018-12-01 14:51:45,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-01 14:51:45,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-01 14:51:45,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-12-01 14:51:45,399 INFO L87 Difference]: Start difference. First operand 45009 states and 62991 transitions. Second operand 10 states. [2018-12-01 14:51:46,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:46,091 INFO L93 Difference]: Finished difference Result 62469 states and 88924 transitions. [2018-12-01 14:51:46,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-01 14:51:46,091 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 76 [2018-12-01 14:51:46,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:46,143 INFO L225 Difference]: With dead ends: 62469 [2018-12-01 14:51:46,143 INFO L226 Difference]: Without dead ends: 62467 [2018-12-01 14:51:46,153 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 [2018-12-01 14:51:46,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62467 states. [2018-12-01 14:51:47,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62467 to 53493. [2018-12-01 14:51:47,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53493 states. [2018-12-01 14:51:47,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53493 states to 53493 states and 74602 transitions. [2018-12-01 14:51:47,182 INFO L78 Accepts]: Start accepts. Automaton has 53493 states and 74602 transitions. Word has length 76 [2018-12-01 14:51:47,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:47,182 INFO L480 AbstractCegarLoop]: Abstraction has 53493 states and 74602 transitions. [2018-12-01 14:51:47,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-01 14:51:47,182 INFO L276 IsEmpty]: Start isEmpty. Operand 53493 states and 74602 transitions. [2018-12-01 14:51:47,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-12-01 14:51:47,185 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:47,185 INFO L402 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:47,185 INFO L423 AbstractCegarLoop]: === Iteration 37 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:47,185 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:47,185 INFO L82 PathProgramCache]: Analyzing trace with hash 265372381, now seen corresponding path program 7 times [2018-12-01 14:51:47,185 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:47,186 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:47,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:47,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:51:47,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:47,233 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:47,234 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:47,234 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/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 [2018-12-01 14:51:47,242 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:51:47,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:47,256 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:47,266 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:47,290 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:51:47,291 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2018-12-01 14:51:47,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-01 14:51:47,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-01 14:51:47,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-12-01 14:51:47,291 INFO L87 Difference]: Start difference. First operand 53493 states and 74602 transitions. Second operand 11 states. [2018-12-01 14:51:48,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:48,186 INFO L93 Difference]: Finished difference Result 75502 states and 106384 transitions. [2018-12-01 14:51:48,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-01 14:51:48,187 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 77 [2018-12-01 14:51:48,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:48,250 INFO L225 Difference]: With dead ends: 75502 [2018-12-01 14:51:48,250 INFO L226 Difference]: Without dead ends: 75501 [2018-12-01 14:51:48,262 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-12-01 14:51:48,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75501 states. [2018-12-01 14:51:49,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75501 to 55737. [2018-12-01 14:51:49,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55737 states. [2018-12-01 14:51:49,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55737 states to 55737 states and 77782 transitions. [2018-12-01 14:51:49,409 INFO L78 Accepts]: Start accepts. Automaton has 55737 states and 77782 transitions. Word has length 77 [2018-12-01 14:51:49,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:49,409 INFO L480 AbstractCegarLoop]: Abstraction has 55737 states and 77782 transitions. [2018-12-01 14:51:49,409 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-01 14:51:49,409 INFO L276 IsEmpty]: Start isEmpty. Operand 55737 states and 77782 transitions. [2018-12-01 14:51:49,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-12-01 14:51:49,413 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:49,413 INFO L402 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:49,414 INFO L423 AbstractCegarLoop]: === Iteration 38 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:49,414 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:49,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1444546058, now seen corresponding path program 10 times [2018-12-01 14:51:49,414 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:49,414 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:49,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:49,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:51:49,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:49,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:49,470 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:49,470 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:49,470 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/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 [2018-12-01 14:51:49,477 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-01 14:51:49,489 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-01 14:51:49,489 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-01 14:51:49,490 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:49,496 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:49,510 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:51:49,510 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 12 [2018-12-01 14:51:49,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-01 14:51:49,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-01 14:51:49,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2018-12-01 14:51:49,511 INFO L87 Difference]: Start difference. First operand 55737 states and 77782 transitions. Second operand 13 states. [2018-12-01 14:51:50,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:50,480 INFO L93 Difference]: Finished difference Result 72432 states and 102654 transitions. [2018-12-01 14:51:50,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-01 14:51:50,481 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 81 [2018-12-01 14:51:50,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:50,542 INFO L225 Difference]: With dead ends: 72432 [2018-12-01 14:51:50,542 INFO L226 Difference]: Without dead ends: 72430 [2018-12-01 14:51:50,549 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2018-12-01 14:51:50,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72430 states. [2018-12-01 14:51:51,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72430 to 63455. [2018-12-01 14:51:51,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63455 states. [2018-12-01 14:51:51,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63455 states to 63455 states and 88331 transitions. [2018-12-01 14:51:51,743 INFO L78 Accepts]: Start accepts. Automaton has 63455 states and 88331 transitions. Word has length 81 [2018-12-01 14:51:51,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:51,743 INFO L480 AbstractCegarLoop]: Abstraction has 63455 states and 88331 transitions. [2018-12-01 14:51:51,743 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-01 14:51:51,743 INFO L276 IsEmpty]: Start isEmpty. Operand 63455 states and 88331 transitions. [2018-12-01 14:51:51,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-12-01 14:51:51,747 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:51,747 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:51,747 INFO L423 AbstractCegarLoop]: === Iteration 39 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:51,748 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:51,748 INFO L82 PathProgramCache]: Analyzing trace with hash 1692281031, now seen corresponding path program 8 times [2018-12-01 14:51:51,748 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:51,748 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:51,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:51,748 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:51:51,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:51,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:51,797 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:51,797 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:51,797 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/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 [2018-12-01 14:51:51,803 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-01 14:51:51,813 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-01 14:51:51,813 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-01 14:51:51,814 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:51,822 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:51,836 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:51:51,836 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2018-12-01 14:51:51,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-01 14:51:51,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-01 14:51:51,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-12-01 14:51:51,836 INFO L87 Difference]: Start difference. First operand 63455 states and 88331 transitions. Second operand 12 states. [2018-12-01 14:51:52,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:52,818 INFO L93 Difference]: Finished difference Result 87915 states and 123650 transitions. [2018-12-01 14:51:52,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-01 14:51:52,818 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 85 [2018-12-01 14:51:52,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:52,895 INFO L225 Difference]: With dead ends: 87915 [2018-12-01 14:51:52,895 INFO L226 Difference]: Without dead ends: 87914 [2018-12-01 14:51:52,911 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 [2018-12-01 14:51:52,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87914 states. [2018-12-01 14:51:54,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87914 to 65699. [2018-12-01 14:51:54,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65699 states. [2018-12-01 14:51:54,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65699 states to 65699 states and 91511 transitions. [2018-12-01 14:51:54,305 INFO L78 Accepts]: Start accepts. Automaton has 65699 states and 91511 transitions. Word has length 85 [2018-12-01 14:51:54,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:54,305 INFO L480 AbstractCegarLoop]: Abstraction has 65699 states and 91511 transitions. [2018-12-01 14:51:54,305 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-01 14:51:54,305 INFO L276 IsEmpty]: Start isEmpty. Operand 65699 states and 91511 transitions. [2018-12-01 14:51:54,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-12-01 14:51:54,309 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:54,309 INFO L402 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:54,309 INFO L423 AbstractCegarLoop]: === Iteration 40 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:54,309 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:54,309 INFO L82 PathProgramCache]: Analyzing trace with hash -1685753485, now seen corresponding path program 8 times [2018-12-01 14:51:54,309 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:54,310 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:54,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:54,310 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:51:54,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:54,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:54,352 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:54,352 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:54,352 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/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 [2018-12-01 14:51:54,358 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-01 14:51:54,368 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-01 14:51:54,368 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-01 14:51:54,369 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:54,376 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:54,390 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:51:54,390 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2018-12-01 14:51:54,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-01 14:51:54,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-01 14:51:54,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-12-01 14:51:54,391 INFO L87 Difference]: Start difference. First operand 65699 states and 91511 transitions. Second operand 11 states. [2018-12-01 14:51:55,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:55,448 INFO L93 Difference]: Finished difference Result 88656 states and 125565 transitions. [2018-12-01 14:51:55,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-01 14:51:55,448 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 85 [2018-12-01 14:51:55,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:55,525 INFO L225 Difference]: With dead ends: 88656 [2018-12-01 14:51:55,525 INFO L226 Difference]: Without dead ends: 88654 [2018-12-01 14:51:55,541 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-12-01 14:51:55,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88654 states. [2018-12-01 14:51:57,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88654 to 76293. [2018-12-01 14:51:57,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76293 states. [2018-12-01 14:51:57,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76293 states to 76293 states and 105928 transitions. [2018-12-01 14:51:57,175 INFO L78 Accepts]: Start accepts. Automaton has 76293 states and 105928 transitions. Word has length 85 [2018-12-01 14:51:57,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:51:57,175 INFO L480 AbstractCegarLoop]: Abstraction has 76293 states and 105928 transitions. [2018-12-01 14:51:57,175 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-01 14:51:57,175 INFO L276 IsEmpty]: Start isEmpty. Operand 76293 states and 105928 transitions. [2018-12-01 14:51:57,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-12-01 14:51:57,179 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:51:57,179 INFO L402 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1] [2018-12-01 14:51:57,179 INFO L423 AbstractCegarLoop]: === Iteration 41 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:51:57,179 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:51:57,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1536406213, now seen corresponding path program 6 times [2018-12-01 14:51:57,180 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:51:57,180 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:51:57,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:57,180 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:51:57,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:51:57,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:51:57,235 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:57,235 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:51:57,235 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/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 [2018-12-01 14:51:57,242 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-12-01 14:51:57,254 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2018-12-01 14:51:57,254 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-01 14:51:57,255 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:51:57,262 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:51:57,276 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:51:57,276 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2018-12-01 14:51:57,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-01 14:51:57,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-01 14:51:57,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-12-01 14:51:57,277 INFO L87 Difference]: Start difference. First operand 76293 states and 105928 transitions. Second operand 10 states. [2018-12-01 14:51:58,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:51:58,530 INFO L93 Difference]: Finished difference Result 109927 states and 154225 transitions. [2018-12-01 14:51:58,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-01 14:51:58,531 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2018-12-01 14:51:58,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:51:58,636 INFO L225 Difference]: With dead ends: 109927 [2018-12-01 14:51:58,636 INFO L226 Difference]: Without dead ends: 109926 [2018-12-01 14:51:58,657 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-12-01 14:51:58,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109926 states. [2018-12-01 14:52:00,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109926 to 80157. [2018-12-01 14:52:00,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80157 states. [2018-12-01 14:52:00,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80157 states to 80157 states and 111367 transitions. [2018-12-01 14:52:00,458 INFO L78 Accepts]: Start accepts. Automaton has 80157 states and 111367 transitions. Word has length 85 [2018-12-01 14:52:00,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:52:00,458 INFO L480 AbstractCegarLoop]: Abstraction has 80157 states and 111367 transitions. [2018-12-01 14:52:00,458 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-01 14:52:00,458 INFO L276 IsEmpty]: Start isEmpty. Operand 80157 states and 111367 transitions. [2018-12-01 14:52:00,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-12-01 14:52:00,462 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:52:00,463 INFO L402 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 11, 11, 1, 1, 1, 1, 1, 1] [2018-12-01 14:52:00,463 INFO L423 AbstractCegarLoop]: === Iteration 42 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:52:00,463 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:52:00,463 INFO L82 PathProgramCache]: Analyzing trace with hash -508374954, now seen corresponding path program 11 times [2018-12-01 14:52:00,463 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:52:00,463 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:52:00,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:52:00,464 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:52:00,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:52:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:52:00,529 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 0 proven. 451 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:52:00,529 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:52:00,529 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/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 [2018-12-01 14:52:00,537 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-12-01 14:52:00,558 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2018-12-01 14:52:00,558 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-01 14:52:00,559 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:52:00,685 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 446 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-01 14:52:00,700 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-01 14:52:00,700 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 25 [2018-12-01 14:52:00,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-12-01 14:52:00,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-12-01 14:52:00,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2018-12-01 14:52:00,701 INFO L87 Difference]: Start difference. First operand 80157 states and 111367 transitions. Second operand 25 states. [2018-12-01 14:52:01,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:52:01,935 INFO L93 Difference]: Finished difference Result 99235 states and 136781 transitions. [2018-12-01 14:52:01,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2018-12-01 14:52:01,935 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 88 [2018-12-01 14:52:01,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:52:01,936 INFO L225 Difference]: With dead ends: 99235 [2018-12-01 14:52:01,936 INFO L226 Difference]: Without dead ends: 501 [2018-12-01 14:52:01,997 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2402 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=2313, Invalid=5877, Unknown=0, NotChecked=0, Total=8190 [2018-12-01 14:52:01,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2018-12-01 14:52:02,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 310. [2018-12-01 14:52:02,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2018-12-01 14:52:02,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 348 transitions. [2018-12-01 14:52:02,005 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 348 transitions. Word has length 88 [2018-12-01 14:52:02,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:52:02,005 INFO L480 AbstractCegarLoop]: Abstraction has 310 states and 348 transitions. [2018-12-01 14:52:02,005 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-12-01 14:52:02,005 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 348 transitions. [2018-12-01 14:52:02,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-12-01 14:52:02,006 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:52:02,006 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1] [2018-12-01 14:52:02,006 INFO L423 AbstractCegarLoop]: === Iteration 43 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:52:02,006 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:52:02,006 INFO L82 PathProgramCache]: Analyzing trace with hash 879701896, now seen corresponding path program 9 times [2018-12-01 14:52:02,007 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:52:02,007 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:52:02,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:52:02,007 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:52:02,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:52:02,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:52:02,069 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:52:02,069 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:52:02,069 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/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 [2018-12-01 14:52:02,074 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-01 14:52:02,089 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2018-12-01 14:52:02,089 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-01 14:52:02,090 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:52:02,096 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:52:02,110 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:52:02,110 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2018-12-01 14:52:02,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-01 14:52:02,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-01 14:52:02,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-12-01 14:52:02,111 INFO L87 Difference]: Start difference. First operand 310 states and 348 transitions. Second operand 12 states. [2018-12-01 14:52:02,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:52:02,139 INFO L93 Difference]: Finished difference Result 323 states and 361 transitions. [2018-12-01 14:52:02,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-01 14:52:02,139 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 94 [2018-12-01 14:52:02,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:52:02,140 INFO L225 Difference]: With dead ends: 323 [2018-12-01 14:52:02,140 INFO L226 Difference]: Without dead ends: 246 [2018-12-01 14:52:02,140 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-12-01 14:52:02,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2018-12-01 14:52:02,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 226. [2018-12-01 14:52:02,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2018-12-01 14:52:02,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 264 transitions. [2018-12-01 14:52:02,145 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 264 transitions. Word has length 94 [2018-12-01 14:52:02,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:52:02,145 INFO L480 AbstractCegarLoop]: Abstraction has 226 states and 264 transitions. [2018-12-01 14:52:02,145 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-01 14:52:02,145 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 264 transitions. [2018-12-01 14:52:02,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-12-01 14:52:02,145 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:52:02,146 INFO L402 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1] [2018-12-01 14:52:02,146 INFO L423 AbstractCegarLoop]: === Iteration 44 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:52:02,146 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:52:02,146 INFO L82 PathProgramCache]: Analyzing trace with hash 270660750, now seen corresponding path program 7 times [2018-12-01 14:52:02,146 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:52:02,146 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:52:02,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:52:02,147 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:52:02,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:52:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:52:02,193 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:52:02,193 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:52:02,193 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/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 [2018-12-01 14:52:02,199 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:52:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:52:02,211 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:52:02,219 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:52:02,233 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:52:02,233 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2018-12-01 14:52:02,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-01 14:52:02,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-01 14:52:02,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-12-01 14:52:02,233 INFO L87 Difference]: Start difference. First operand 226 states and 264 transitions. Second operand 11 states. [2018-12-01 14:52:02,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:52:02,257 INFO L93 Difference]: Finished difference Result 247 states and 284 transitions. [2018-12-01 14:52:02,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-01 14:52:02,257 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 95 [2018-12-01 14:52:02,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:52:02,257 INFO L225 Difference]: With dead ends: 247 [2018-12-01 14:52:02,257 INFO L226 Difference]: Without dead ends: 106 [2018-12-01 14:52:02,257 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-12-01 14:52:02,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-12-01 14:52:02,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2018-12-01 14:52:02,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2018-12-01 14:52:02,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 105 transitions. [2018-12-01 14:52:02,259 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 105 transitions. Word has length 95 [2018-12-01 14:52:02,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:52:02,259 INFO L480 AbstractCegarLoop]: Abstraction has 106 states and 105 transitions. [2018-12-01 14:52:02,259 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-01 14:52:02,259 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 105 transitions. [2018-12-01 14:52:02,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-12-01 14:52:02,260 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:52:02,260 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1] [2018-12-01 14:52:02,260 INFO L423 AbstractCegarLoop]: === Iteration 45 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:52:02,260 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:52:02,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1806118879, now seen corresponding path program 8 times [2018-12-01 14:52:02,260 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:52:02,260 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:52:02,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:52:02,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:52:02,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:52:02,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:52:02,310 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:52:02,310 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 14:52:02,310 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/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 [2018-12-01 14:52:02,316 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-01 14:52:02,328 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-01 14:52:02,328 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-01 14:52:02,329 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:52:02,340 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:52:02,354 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 14:52:02,354 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2018-12-01 14:52:02,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-01 14:52:02,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-01 14:52:02,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-12-01 14:52:02,355 INFO L87 Difference]: Start difference. First operand 106 states and 105 transitions. Second operand 12 states. [2018-12-01 14:52:02,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:52:02,367 INFO L93 Difference]: Finished difference Result 106 states and 105 transitions. [2018-12-01 14:52:02,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-01 14:52:02,367 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 105 [2018-12-01 14:52:02,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:52:02,367 INFO L225 Difference]: With dead ends: 106 [2018-12-01 14:52:02,367 INFO L226 Difference]: Without dead ends: 0 [2018-12-01 14:52:02,367 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 [2018-12-01 14:52:02,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-01 14:52:02,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-01 14:52:02,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-01 14:52:02,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-01 14:52:02,368 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 105 [2018-12-01 14:52:02,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:52:02,368 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 14:52:02,368 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-01 14:52:02,368 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-01 14:52:02,368 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-01 14:52:02,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-01 14:52:03,058 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:03,060 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:03,092 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:03,108 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:03,117 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:03,125 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:03,153 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:03,158 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:03,174 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:03,256 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:03,348 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:03,523 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:03,578 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:03,623 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:03,624 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:03,624 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:03,897 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:03,925 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:03,954 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:03,977 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:03,989 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:03,995 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:04,392 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:04,465 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:04,515 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:04,567 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:04,642 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:04,738 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:04,749 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:05,620 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:06,180 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:06,404 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:10,004 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:11,322 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:11,634 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:12,914 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:13,448 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:14,068 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:14,199 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:14,507 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:14,526 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:14,954 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:14,991 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:15,133 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:15,637 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:15,716 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:17,874 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:18,700 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:22,468 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:22,569 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:23,804 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:27,171 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:27,843 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:27,988 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:30,429 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:31,034 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:32,473 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:33,734 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:36,165 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 14:52:41,555 WARN L180 SmtUtils]: Spent 39.17 s on a formula simplification. DAG size of input: 4688 DAG size of output: 2713 [2018-12-01 14:53:41,125 WARN L180 SmtUtils]: Spent 59.55 s on a formula simplification. DAG size of input: 2296 DAG size of output: 370 [2018-12-01 14:53:41,129 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-01 14:53:41,129 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-01 14:53:41,129 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-01 14:53:41,129 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-01 14:53:41,129 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-01 14:53:41,129 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-01 14:53:41,130 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-12-01 14:53:41,130 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 31) no Hoare annotation was computed. [2018-12-01 14:53:41,130 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 13 35) no Hoare annotation was computed. [2018-12-01 14:53:41,130 INFO L448 ceAbstractionStarter]: For program point L23(lines 23 31) no Hoare annotation was computed. [2018-12-01 14:53:41,130 INFO L448 ceAbstractionStarter]: For program point L19-2(lines 19 33) no Hoare annotation was computed. [2018-12-01 14:53:41,130 INFO L448 ceAbstractionStarter]: For program point mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2018-12-01 14:53:41,130 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-12-01 14:53:41,130 INFO L448 ceAbstractionStarter]: For program point L28-1(line 28) no Hoare annotation was computed. [2018-12-01 14:53:41,130 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2018-12-01 14:53:41,130 INFO L448 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-12-01 14:53:41,130 INFO L448 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2018-12-01 14:53:41,130 INFO L448 ceAbstractionStarter]: For program point mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2018-12-01 14:53:41,130 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-12-01 14:53:41,130 INFO L448 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-12-01 14:53:41,130 INFO L448 ceAbstractionStarter]: For program point mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2018-12-01 14:53:41,130 INFO L448 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2018-12-01 14:53:41,130 INFO L448 ceAbstractionStarter]: For program point mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2018-12-01 14:53:41,131 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 31) no Hoare annotation was computed. [2018-12-01 14:53:41,131 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2018-12-01 14:53:41,131 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2018-12-01 14:53:41,131 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 13 35) no Hoare annotation was computed. [2018-12-01 14:53:41,131 INFO L448 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2018-12-01 14:53:41,131 INFO L448 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2018-12-01 14:53:41,131 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 13 35) the Hoare annotation is: true [2018-12-01 14:53:41,131 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-12-01 14:53:41,131 INFO L448 ceAbstractionStarter]: For program point L30-1(line 30) no Hoare annotation was computed. [2018-12-01 14:53:41,131 INFO L448 ceAbstractionStarter]: For program point L26(line 26) no Hoare annotation was computed. [2018-12-01 14:53:41,131 INFO L448 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2018-12-01 14:53:41,131 INFO L448 ceAbstractionStarter]: For program point L22(lines 22 32) no Hoare annotation was computed. [2018-12-01 14:53:41,133 INFO L444 ceAbstractionStarter]: At program point L22-1(lines 19 33) the Hoare annotation is: (let ((.cse77 (<= 0 (+ main_~x~0 2147483648))) (.cse70 (<= 0 main_~i~0)) (.cse5 (<= main_~N~0 10)) (.cse78 (<= 0 (+ main_~y~0 2147483648)))) (let ((.cse33 (<= main_~x~0 2)) (.cse17 (<= 0 main_~x~0)) (.cse43 (<= main_~x~0 3)) (.cse1 (<= 0 (+ main_~x~0 2))) (.cse19 (and .cse77 .cse70 .cse5 .cse78)) (.cse2 (<= 0 main_~y~0))) (let ((.cse54 (<= 0 (+ main_~y~0 1))) (.cse29 (<= main_~y~0 2)) (.cse22 (<= 0 (+ main_~x~0 4))) (.cse24 (<= 0 (+ main_~y~0 2))) (.cse14 (<= main_~y~0 3)) (.cse28 (and .cse77 .cse70 .cse2 .cse5)) (.cse60 (and .cse1 .cse19)) (.cse40 (and .cse70 .cse5)) (.cse41 (<= 0 (+ main_~x~0 1))) (.cse56 (<= main_~x~0 1)) (.cse67 (and .cse43 .cse70 .cse5)) (.cse42 (<= 0 (+ main_~x~0 5))) (.cse27 (<= 0 (+ main_~x~0 3))) (.cse47 (and .cse70 .cse5 .cse17 .cse78)) (.cse10 (and .cse70 .cse33 .cse5 .cse17 .cse78)) (.cse12 (<= main_~y~0 0)) (.cse64 (and .cse77 .cse70 .cse5)) (.cse4 (<= main_~x~0 0))) (let ((.cse44 (<= 0 (+ main_~x~0 9))) (.cse53 (<= 1 main_~i~0)) (.cse38 (and .cse2 .cse64 .cse4)) (.cse66 (and .cse10 .cse12)) (.cse59 (and .cse43 .cse47)) (.cse34 (and .cse27 .cse19)) (.cse25 (<= main_~x~0 9)) (.cse65 (and .cse42 .cse4 .cse5 .cse78)) (.cse35 (and .cse70 .cse2 .cse4 .cse5 .cse17)) (.cse36 (<= main_~y~0 8)) (.cse55 (<= 0 (+ main_~y~0 7))) (.cse8 (<= main_~y~0 6)) (.cse74 (and .cse2 .cse67)) (.cse49 (and .cse70 .cse56 .cse2 .cse5)) (.cse7 (and .cse40 .cse2 .cse41)) (.cse75 (and .cse60 .cse12)) (.cse51 (and .cse14 .cse28)) (.cse58 (<= 0 (+ main_~y~0 6))) (.cse62 (and .cse77 .cse70 .cse24 .cse4 .cse5)) (.cse21 (<= 0 (+ main_~y~0 3))) (.cse3 (<= main_~y~0 7)) (.cse37 (and .cse27 .cse70 .cse2 .cse5)) (.cse16 (<= main_~y~0 1)) (.cse31 (<= 0 (+ main_~x~0 7))) (.cse11 (<= 6 main_~i~0)) (.cse69 (<= main_~x~0 8)) (.cse50 (<= main_~y~0 5)) (.cse76 (and .cse70 .cse22 .cse4 .cse5 .cse78)) (.cse57 (<= 0 (+ main_~x~0 8))) (.cse71 (and .cse77 .cse70 .cse2 .cse29 .cse4 .cse5)) (.cse48 (<= main_~x~0 6)) (.cse32 (<= 8 main_~i~0)) (.cse18 (<= main_~x~0 5)) (.cse73 (and .cse22 .cse19)) (.cse39 (<= main_~y~0 4)) (.cse45 (<= 0 (+ main_~y~0 5))) (.cse72 (<= 2 main_~i~0)) (.cse52 (<= 4 main_~i~0)) (.cse15 (and .cse1 .cse64)) (.cse68 (and .cse28 .cse14 .cse17)) (.cse26 (<= 10 main_~i~0)) (.cse9 (<= 0 (+ main_~y~0 4))) (.cse13 (<= 5 main_~i~0)) (.cse30 (and .cse77 .cse70 .cse2 .cse4 .cse5)) (.cse61 (<= 3 main_~i~0)) (.cse46 (<= main_~x~0 4)) (.cse6 (<= 7 main_~i~0)) (.cse20 (<= 0 (+ main_~x~0 6))) (.cse23 (and .cse77 .cse54 .cse70 .cse4 .cse5)) (.cse0 (<= 9 main_~i~0)) (.cse63 (<= main_~x~0 7))) (or (and .cse0 (and .cse1 .cse2 .cse3 .cse4 .cse5)) (and .cse6 (and .cse7 .cse8 .cse4)) (and .cse9 .cse10 .cse11 .cse12) (and .cse13 .cse2 .cse14 .cse15 .cse4) (and .cse2 .cse11 .cse16 .cse5 .cse17 .cse18) (and .cse19 .cse0 .cse20 .cse21 .cse4 .cse12) (and .cse22 .cse13 .cse23 .cse12) (and .cse6 .cse19 .cse24 .cse17 .cse12 .cse18) (and .cse25 .cse2 .cse16 .cse5 .cse17 .cse26) (and .cse27 .cse13 .cse28 .cse29 .cse4) (and .cse27 .cse13 .cse19 .cse24 .cse4 .cse12) (and .cse30 .cse6 .cse31 .cse12) (and .cse8 .cse2 .cse32 .cse33 .cse5 .cse17) (and .cse9 .cse6 .cse34 .cse4 .cse12) (and .cse35 .cse32 .cse36) (and .cse2 .cse33 .cse5 .cse17 .cse36 .cse26) (and .cse0 .cse8 .cse37 .cse4) (and .cse6 (and .cse22 .cse14 .cse38)) (and .cse39 .cse13 .cse40 .cse2 .cse41 .cse4) (and .cse9 .cse42 .cse19 .cse0 .cse4 .cse12) (and .cse13 (and .cse43 .cse2 .cse29 .cse5) .cse17) (and .cse23 .cse26 .cse44 .cse12) (and .cse45 .cse0 .cse46 .cse47 .cse12) (and .cse6 .cse48 .cse2 .cse16 .cse5 .cse17) (and .cse49 .cse50 .cse11 .cse17) (and .cse51 .cse0 .cse20 .cse4) (and .cse22 .cse52 .cse30 .cse12) (and (<= main_~x~0 10) .cse2 .cse5 .cse17 .cse26 .cse12) (and .cse53 .cse54 .cse4 .cse5 .cse17 .cse12) (and .cse6 .cse55 .cse4 .cse5 .cse17 .cse12) (and .cse52 .cse49 .cse14 .cse17) (and .cse42 (and .cse28 .cse14 .cse4) .cse32) (and .cse30 .cse26 .cse12) (and .cse7 .cse0 .cse4 .cse36) (and (or (and .cse55 .cse32 .cse41 .cse4 .cse5) (and .cse55 .cse56 .cse32 .cse5 .cse17)) .cse12) (and .cse57 .cse30 .cse32 .cse12) (and .cse0 .cse58 .cse59 .cse12) (and .cse34 .cse0 .cse58 .cse4 .cse12) (and .cse45 .cse32 .cse59 .cse12) (and .cse9 .cse60 .cse11 .cse4 .cse12) (and .cse61 .cse21 .cse4 .cse5 .cse17 .cse12) (and .cse62 .cse6 .cse42 .cse12) (and .cse52 .cse33 .cse24 .cse5 .cse17 .cse12) (and .cse52 .cse2 .cse46 .cse5 .cse17 .cse12) (and .cse0 .cse28 .cse63 .cse29 .cse17) (and .cse9 .cse0 .cse47 .cse12 .cse18) (and .cse7 .cse4 .cse26) (and .cse13 .cse2 .cse14 .cse33 .cse5 .cse17) (and .cse27 .cse2 .cse14 .cse64 .cse11 .cse4) (and .cse13 .cse10 .cse21 .cse12) (and .cse65 .cse2 .cse50 .cse26) (and .cse30 .cse0 .cse44 .cse12) (and .cse53 .cse2 .cse4 .cse16 .cse5 .cse17) (and .cse55 .cse66 .cse0) (and .cse54 .cse43 .cse52 .cse5 .cse17 .cse12) (and .cse6 .cse46 .cse21 .cse47 .cse12) (and .cse2 .cse4 .cse16 .cse5 .cse26 .cse44) (and .cse2 .cse14 .cse67 .cse11 .cse17) (and .cse37 .cse32 .cse50 .cse4) (and .cse54 .cse32 .cse63 .cse5 .cse17 .cse12) (and .cse54 .cse33 .cse61 .cse5 .cse17 .cse12) (and .cse1 .cse19 .cse52 .cse24 .cse4 .cse12) (and .cse35 .cse0 (<= main_~y~0 9)) (and .cse0 .cse2 .cse3 .cse33 .cse5 .cse17) (and .cse13 .cse2 .cse46 .cse16 .cse5 .cse17) (and .cse9 .cse52 .cse4 .cse5 .cse17 .cse12) (and .cse68 .cse32 .cse18) (and .cse32 .cse23 .cse31 .cse12) (and .cse19 .cse48 .cse32 .cse24 .cse17 .cse12) (and (or (and .cse53 .cse56 .cse2 .cse5 .cse17) (and .cse53 .cse2 .cse41 .cse4 .cse5)) .cse12) (and .cse39 .cse28 .cse0 .cse17 .cse18) (and .cse62 .cse0 .cse31 .cse12) (and .cse43 .cse2 .cse61 .cse5 .cse17 .cse12) (and .cse54 .cse0 .cse69 .cse5 .cse17 .cse12) (and .cse52 .cse2 .cse29 .cse33 .cse5 .cse17) (and .cse70 .cse2 .cse4 .cse5 .cse17 .cse12) (and .cse71 .cse20 .cse32) (and .cse13 .cse60 .cse21 .cse4 .cse12) (and .cse45 .cse13 .cse4 .cse5 .cse17 .cse12) (and .cse49 .cse3 .cse32 .cse17) (and .cse39 .cse13 .cse49 .cse17) (and .cse0 (and (and .cse48 .cse47) .cse21) .cse12) (and .cse72 .cse2 .cse33 .cse5 .cse17 .cse12) (and .cse25 .cse54 .cse5 .cse17 .cse26 .cse12) (and .cse9 .cse32 .cse73 .cse4 .cse12) (and .cse35 .cse8 .cse11) (and .cse30 .cse42 .cse13 .cse12) (and .cse8 (and .cse22 .cse38) .cse26) (and .cse6 .cse20 .cse2 .cse4 .cse16 .cse5) (and .cse2 .cse11 (and .cse39 .cse15) .cse4) (and .cse39 .cse28 .cse48 .cse17 .cse26) (and .cse52 .cse40 .cse2 .cse14 .cse41 .cse4) (and .cse8 .cse2 .cse32 .cse15 .cse4) (and .cse9 .cse48 .cse26 .cse47 .cse12) (and .cse0 .cse49 .cse17 .cse36) (and .cse28 .cse69 .cse29 .cse17 .cse26) (and .cse6 .cse2 .cse50 .cse33 .cse5 .cse17) (and .cse11 .cse58 .cse4 .cse5 .cse17 .cse12) (and .cse66 .cse26) (and (or (and .cse6 .cse41 .cse4 .cse5) (and .cse6 .cse56 .cse5 .cse17)) .cse58 .cse12) (and .cse57 .cse0 .cse2 .cse4 .cse16 .cse5) (and .cse6 .cse49 .cse8 .cse17) (and .cse63 .cse21 .cse26 .cse47 .cse12) (and .cse43 .cse11 .cse47 .cse21 .cse12) (and .cse39 .cse6 .cse37 .cse4) (and .cse7 .cse32 .cse3 .cse4) (and .cse9 .cse6 .cse59 .cse12) (and .cse35 .cse14 .cse61) (and .cse39 .cse2 .cse33 .cse11 .cse5 .cse17) (and .cse45 .cse34 .cse32 .cse4 .cse12) (and (and .cse39 .cse28) .cse20 .cse4 .cse26) (and .cse9 .cse32 .cse46 .cse47 .cse12) (and .cse42 .cse2 .cse11 .cse4 .cse16 .cse5) (and .cse28 .cse8 .cse46 .cse17 .cse26) (and .cse13 .cse2 .cse5 .cse17 .cse12 .cse18) (and .cse2 .cse69 .cse32 .cse5 .cse17 .cse12) (and .cse34 .cse11 .cse21 .cse4 .cse12) (and .cse62 .cse20 .cse32 .cse12) (and .cse25 .cse0 .cse2 .cse5 .cse17 .cse12) (and .cse54 .cse13 .cse46 .cse5 .cse17 .cse12) (and .cse54 .cse11 .cse5 .cse17 .cse12 .cse18) (and .cse35 .cse13 .cse50) (and .cse22 .cse13 .cse2 .cse4 .cse16 .cse5) (and .cse6 .cse28 .cse29 .cse17 .cse18) (and .cse19 .cse46 .cse11 .cse24 .cse17 .cse12) (and .cse9 .cse19 .cse20 .cse4 .cse26 .cse12) (and .cse35 .cse6 .cse3) (and .cse2 .cse33 .cse61 .cse16 .cse5 .cse17) (and .cse32 .cse2 .cse63 .cse16 .cse5 .cse17) (and .cse74 .cse3 .cse17 .cse26) (and .cse0 .cse2 .cse69 .cse16 .cse5 .cse17) (and (or (and .cse41 .cse61 .cse4 .cse5) (and .cse56 .cse61 .cse5 .cse17)) .cse24 .cse12) (and .cse27 .cse52 .cse23 .cse12) (and .cse55 .cse0 .cse4 .cse75) (and .cse60 .cse32 .cse58 .cse4 .cse12) (and .cse48 .cse2 .cse11 .cse5 .cse17 .cse12) (and .cse74 .cse32 .cse50 .cse17) (and .cse72 .cse56 .cse2 .cse16 .cse5 .cse17) (and .cse72 .cse24 .cse4 .cse5 .cse17 .cse12) (and .cse28 .cse50 .cse17 .cse26 .cse18) (and .cse19 .cse21 .cse4 .cse31 .cse26 .cse12) (and .cse54 .cse6 .cse48 .cse5 .cse17 .cse12) (and (<= 0 (+ main_~y~0 9)) (or (and .cse56 .cse0 .cse5 .cse17 .cse12) (and .cse0 .cse41 .cse4 .cse5 .cse12))) (and .cse6 .cse45 .cse60 .cse4 .cse12) (and .cse30 .cse20 .cse11 .cse12) (and .cse45 .cse65 .cse26 .cse12) (and .cse39 .cse35 .cse52) (and .cse32 .cse21 .cse47 .cse12 .cse18) (and .cse55 (and .cse43 .cse47 .cse12) .cse26) (and .cse28 .cse46 .cse29 .cse11 .cse17) (and .cse2 .cse15 .cse4 .cse36 .cse26) (and .cse6 .cse22 .cse19 .cse21 .cse4 .cse12) (and .cse55 (and .cse27 .cse5 .cse12) .cse4 .cse26) (and .cse0 .cse8 .cse74 .cse17) (and .cse57 .cse0 .cse23 .cse12) (and .cse40 .cse2 .cse29 .cse41 .cse61 .cse4) (and (or (and .cse45 .cse41 .cse11 .cse4 .cse5) (and .cse45 .cse56 .cse11 .cse5 .cse17)) .cse12) (and .cse32 .cse58 .cse10 .cse12) (and .cse42 .cse19 .cse32 .cse21 .cse4 .cse12) (and .cse6 .cse2 .cse50 .cse15 .cse4) (and .cse62 .cse22 .cse11 .cse12) (and .cse49 .cse17 .cse26) (and .cse7 .cse50 .cse11 .cse4) (and .cse28 .cse0 .cse50 .cse46 .cse17) (and .cse68 .cse0 .cse48) (and .cse1 .cse23 .cse61 .cse12) (and .cse58 .cse73 .cse4 .cse26 .cse12) (and .cse43 .cse52 .cse2 .cse16 .cse5 .cse17) (and .cse4 .cse75 .cse26) (and .cse51 .cse4 .cse31 .cse26) (and (<= 0 (+ main_~y~0 8)) .cse32 .cse4 .cse5 .cse17 .cse12) (and .cse46 .cse58 .cse26 .cse47 .cse12) (and .cse71 .cse0 .cse31) (and .cse42 .cse23 .cse11 .cse12) (and .cse57 .cse62 .cse26 .cse12) (and .cse6 .cse2 .cse63 .cse5 .cse17 .cse12) (and .cse72 .cse2 .cse41 .cse4 .cse16 .cse5) (and (and .cse39 .cse2 .cse76) .cse32) (and (or (and .cse56 .cse52 .cse5 .cse17) (and .cse52 .cse41 .cse4 .cse5)) .cse21 .cse12) (and .cse1 .cse2 .cse61 .cse4 .cse16 .cse5) (and .cse27 .cse52 .cse2 .cse4 .cse16 .cse5) (and .cse3 .cse37 .cse4 .cse26) (and .cse72 .cse2 .cse29 .cse4 .cse5 .cse17) (and .cse56 .cse2 .cse29 .cse61 .cse5 .cse17) (and .cse2 .cse32 .cse4 .cse16 .cse31 .cse5) (and .cse22 .cse2 .cse64 .cse29 .cse11 .cse4) (and (and .cse69 .cse24 .cse5 .cse17) .cse26 .cse12) (and .cse0 .cse2 .cse50 .cse76) (and .cse71 .cse6 .cse42) (and .cse57 .cse26 .cse71) (and .cse48 .cse28 .cse32 .cse29 .cse17) (and .cse39 .cse28 .cse32 .cse46 .cse17) (and .cse6 (and .cse39 .cse43 .cse2 .cse47)) (and .cse43 .cse13 .cse24 .cse47 .cse12) (and .cse45 .cse26 .cse47 .cse12 .cse18) (and .cse45 .cse0 .cse73 .cse4 .cse12) (and .cse1 .cse72 .cse30 .cse12) (and .cse0 (and .cse39 .cse42 .cse5) .cse2 .cse4) (and .cse6 .cse45 .cse10 .cse12) (and (or (and .cse72 .cse54 .cse41 .cse4 .cse5) (and .cse72 .cse54 .cse56 .cse5 .cse17)) .cse12) (and .cse52 .cse2 .cse29 .cse15 .cse4) (and .cse68 .cse63 .cse26) (and .cse9 (or (and .cse13 .cse41 .cse4 .cse5) (and .cse56 .cse13 .cse5 .cse17)) .cse12) (and .cse27 .cse30 .cse61 .cse12) (and .cse6 .cse28 .cse14 .cse46 .cse17) (and .cse6 .cse20 .cse23 .cse12) (and .cse19 .cse0 .cse63 .cse24 .cse17 .cse12)))))) [2018-12-01 14:53:41,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 02:53:41 BoogieIcfgContainer [2018-12-01 14:53:41,162 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-01 14:53:41,163 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 14:53:41,163 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 14:53:41,163 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 14:53:41,163 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:51:28" (3/4) ... [2018-12-01 14:53:41,166 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-01 14:53:41,170 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-01 14:53:41,170 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-01 14:53:41,173 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-12-01 14:53:41,173 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-01 14:53:41,173 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-01 14:53:41,173 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-01 14:53:41,204 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_349ec061-b063-4734-96ee-4c0128df7658/bin-2019/uautomizer/witness.graphml [2018-12-01 14:53:41,204 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 14:53:41,204 INFO L168 Benchmark]: Toolchain (without parser) took 132755.64 ms. Allocated memory was 1.0 GB in the beginning and 3.0 GB in the end (delta: 2.0 GB). Free memory was 958.7 MB in the beginning and 1.7 GB in the end (delta: -764.6 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. [2018-12-01 14:53:41,205 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 14:53:41,205 INFO L168 Benchmark]: CACSL2BoogieTranslator took 119.68 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 947.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-12-01 14:53:41,205 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.41 ms. Allocated memory is still 1.0 GB. Free memory is still 947.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 14:53:41,205 INFO L168 Benchmark]: Boogie Preprocessor took 15.82 ms. Allocated memory is still 1.0 GB. Free memory is still 947.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 14:53:41,205 INFO L168 Benchmark]: RCFGBuilder took 160.79 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 62.4 MB). Free memory was 945.2 MB in the beginning and 1.0 GB in the end (delta: -99.6 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-12-01 14:53:41,205 INFO L168 Benchmark]: TraceAbstraction took 132403.83 ms. Allocated memory was 1.1 GB in the beginning and 3.0 GB in the end (delta: 2.0 GB). Free memory was 1.0 GB in the beginning and 1.7 GB in the end (delta: -678.5 MB). Peak memory consumption was 4.2 GB. Max. memory is 11.5 GB. [2018-12-01 14:53:41,206 INFO L168 Benchmark]: Witness Printer took 41.43 ms. Allocated memory is still 3.0 GB. Free memory is still 1.7 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 14:53:41,206 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 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 119.68 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 947.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.41 ms. Allocated memory is still 1.0 GB. Free memory is still 947.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.82 ms. Allocated memory is still 1.0 GB. Free memory is still 947.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 160.79 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 62.4 MB). Free memory was 945.2 MB in the beginning and 1.0 GB in the end (delta: -99.6 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 132403.83 ms. Allocated memory was 1.1 GB in the beginning and 3.0 GB in the end (delta: 2.0 GB). Free memory was 1.0 GB in the beginning and 1.7 GB in the end (delta: -678.5 MB). Peak memory consumption was 4.2 GB. Max. memory is 11.5 GB. * Witness Printer took 41.43 ms. Allocated memory is still 3.0 GB. Free memory is still 1.7 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: 30]: 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: 28]: 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: 26]: 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: 24]: 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 - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((9 <= i && (((0 <= x + 2 && 0 <= y) && y <= 7) && x <= 0) && N <= 10) || (7 <= i && ((((0 <= i && N <= 10) && 0 <= y) && 0 <= x + 1) && y <= 6) && x <= 0)) || (((0 <= y + 4 && (((0 <= i && x <= 2) && N <= 10) && 0 <= x) && 0 <= y + 2147483648) && 6 <= i) && y <= 0)) || ((((5 <= i && 0 <= y) && y <= 3) && 0 <= x + 2 && (0 <= x + 2147483648 && 0 <= i) && N <= 10) && x <= 0)) || (((((0 <= y && 6 <= i) && y <= 1) && N <= 10) && 0 <= x) && x <= 5)) || ((((((((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && 9 <= i) && 0 <= x + 6) && 0 <= y + 3) && x <= 0) && y <= 0)) || (((0 <= x + 4 && 5 <= i) && (((0 <= x + 2147483648 && 0 <= y + 1) && 0 <= i) && x <= 0) && N <= 10) && y <= 0)) || (((((7 <= i && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && 0 <= y + 2) && 0 <= x) && y <= 0) && x <= 5)) || (((((x <= 9 && 0 <= y) && y <= 1) && N <= 10) && 0 <= x) && 10 <= i)) || ((((0 <= x + 3 && 5 <= i) && ((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && N <= 10) && y <= 2) && x <= 0)) || (((((0 <= x + 3 && 5 <= i) && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && 0 <= y + 2) && x <= 0) && y <= 0)) || (((((((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && x <= 0) && N <= 10) && 7 <= i) && 0 <= x + 7) && y <= 0)) || (((((y <= 6 && 0 <= y) && 8 <= i) && x <= 2) && N <= 10) && 0 <= x)) || ((((0 <= y + 4 && 7 <= i) && 0 <= x + 3 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && x <= 0) && y <= 0)) || ((((((0 <= i && 0 <= y) && x <= 0) && N <= 10) && 0 <= x) && 8 <= i) && y <= 8)) || (((((0 <= y && x <= 2) && N <= 10) && 0 <= x) && y <= 8) && 10 <= i)) || (((9 <= i && y <= 6) && ((0 <= x + 3 && 0 <= i) && 0 <= y) && N <= 10) && x <= 0)) || (7 <= i && (0 <= x + 4 && y <= 3) && (0 <= y && (0 <= x + 2147483648 && 0 <= i) && N <= 10) && x <= 0)) || (((((y <= 4 && 5 <= i) && 0 <= i && N <= 10) && 0 <= y) && 0 <= x + 1) && x <= 0)) || (((((0 <= y + 4 && 0 <= x + 5) && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && 9 <= i) && x <= 0) && y <= 0)) || ((5 <= i && ((x <= 3 && 0 <= y) && y <= 2) && N <= 10) && 0 <= x)) || (((((((0 <= x + 2147483648 && 0 <= y + 1) && 0 <= i) && x <= 0) && N <= 10) && 10 <= i) && 0 <= x + 9) && y <= 0)) || ((((0 <= y + 5 && 9 <= i) && x <= 4) && ((0 <= i && N <= 10) && 0 <= x) && 0 <= y + 2147483648) && y <= 0)) || (((((7 <= i && x <= 6) && 0 <= y) && y <= 1) && N <= 10) && 0 <= x)) || ((((((0 <= i && x <= 1) && 0 <= y) && N <= 10) && y <= 5) && 6 <= i) && 0 <= x)) || ((((y <= 3 && ((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && N <= 10) && 9 <= i) && 0 <= x + 6) && x <= 0)) || (((0 <= x + 4 && 4 <= i) && (((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && x <= 0) && N <= 10) && y <= 0)) || (((((x <= 10 && 0 <= y) && N <= 10) && 0 <= x) && 10 <= i) && y <= 0)) || (((((1 <= i && 0 <= y + 1) && x <= 0) && N <= 10) && 0 <= x) && y <= 0)) || (((((7 <= i && 0 <= y + 7) && x <= 0) && N <= 10) && 0 <= x) && y <= 0)) || (((4 <= i && ((0 <= i && x <= 1) && 0 <= y) && N <= 10) && y <= 3) && 0 <= x)) || ((0 <= x + 5 && ((((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && N <= 10) && y <= 3) && x <= 0) && 8 <= i)) || ((((((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && x <= 0) && N <= 10) && 10 <= i) && y <= 0)) || ((((((0 <= i && N <= 10) && 0 <= y) && 0 <= x + 1) && 9 <= i) && x <= 0) && y <= 8)) || ((((((0 <= y + 7 && 8 <= i) && 0 <= x + 1) && x <= 0) && N <= 10) || ((((0 <= y + 7 && x <= 1) && 8 <= i) && N <= 10) && 0 <= x)) && y <= 0)) || (((0 <= x + 8 && (((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && x <= 0) && N <= 10) && 8 <= i) && y <= 0)) || (((9 <= i && 0 <= y + 6) && x <= 3 && ((0 <= i && N <= 10) && 0 <= x) && 0 <= y + 2147483648) && y <= 0)) || (((((0 <= x + 3 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && 9 <= i) && 0 <= y + 6) && x <= 0) && y <= 0)) || (((0 <= y + 5 && 8 <= i) && x <= 3 && ((0 <= i && N <= 10) && 0 <= x) && 0 <= y + 2147483648) && y <= 0)) || ((((0 <= y + 4 && 0 <= x + 2 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && 6 <= i) && x <= 0) && y <= 0)) || (((((3 <= i && 0 <= y + 3) && x <= 0) && N <= 10) && 0 <= x) && y <= 0)) || (((((((0 <= x + 2147483648 && 0 <= i) && 0 <= y + 2) && x <= 0) && N <= 10) && 7 <= i) && 0 <= x + 5) && y <= 0)) || (((((4 <= i && x <= 2) && 0 <= y + 2) && N <= 10) && 0 <= x) && y <= 0)) || (((((4 <= i && 0 <= y) && x <= 4) && N <= 10) && 0 <= x) && y <= 0)) || ((((9 <= i && ((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && N <= 10) && x <= 7) && y <= 2) && 0 <= x)) || ((((0 <= y + 4 && 9 <= i) && ((0 <= i && N <= 10) && 0 <= x) && 0 <= y + 2147483648) && y <= 0) && x <= 5)) || (((((0 <= i && N <= 10) && 0 <= y) && 0 <= x + 1) && x <= 0) && 10 <= i)) || (((((5 <= i && 0 <= y) && y <= 3) && x <= 2) && N <= 10) && 0 <= x)) || (((((0 <= x + 3 && 0 <= y) && y <= 3) && (0 <= x + 2147483648 && 0 <= i) && N <= 10) && 6 <= i) && x <= 0)) || (((5 <= i && (((0 <= i && x <= 2) && N <= 10) && 0 <= x) && 0 <= y + 2147483648) && 0 <= y + 3) && y <= 0)) || ((((((0 <= x + 5 && x <= 0) && N <= 10) && 0 <= y + 2147483648) && 0 <= y) && y <= 5) && 10 <= i)) || (((((((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && x <= 0) && N <= 10) && 9 <= i) && 0 <= x + 9) && y <= 0)) || (((((1 <= i && 0 <= y) && x <= 0) && y <= 1) && N <= 10) && 0 <= x)) || ((0 <= y + 7 && ((((0 <= i && x <= 2) && N <= 10) && 0 <= x) && 0 <= y + 2147483648) && y <= 0) && 9 <= i)) || (((((0 <= y + 1 && x <= 3) && 4 <= i) && N <= 10) && 0 <= x) && y <= 0)) || ((((7 <= i && x <= 4) && 0 <= y + 3) && ((0 <= i && N <= 10) && 0 <= x) && 0 <= y + 2147483648) && y <= 0)) || (((((0 <= y && x <= 0) && y <= 1) && N <= 10) && 10 <= i) && 0 <= x + 9)) || ((((0 <= y && y <= 3) && (x <= 3 && 0 <= i) && N <= 10) && 6 <= i) && 0 <= x)) || ((((((0 <= x + 3 && 0 <= i) && 0 <= y) && N <= 10) && 8 <= i) && y <= 5) && x <= 0)) || (((((0 <= y + 1 && 8 <= i) && x <= 7) && N <= 10) && 0 <= x) && y <= 0)) || (((((0 <= y + 1 && x <= 2) && 3 <= i) && N <= 10) && 0 <= x) && y <= 0)) || (((((0 <= x + 2 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && 4 <= i) && 0 <= y + 2) && x <= 0) && y <= 0)) || ((((((0 <= i && 0 <= y) && x <= 0) && N <= 10) && 0 <= x) && 9 <= i) && y <= 9)) || (((((9 <= i && 0 <= y) && y <= 7) && x <= 2) && N <= 10) && 0 <= x)) || (((((5 <= i && 0 <= y) && x <= 4) && y <= 1) && N <= 10) && 0 <= x)) || (((((0 <= y + 4 && 4 <= i) && x <= 0) && N <= 10) && 0 <= x) && y <= 0)) || (((((((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && N <= 10) && y <= 3) && 0 <= x) && 8 <= i) && x <= 5)) || (((8 <= i && (((0 <= x + 2147483648 && 0 <= y + 1) && 0 <= i) && x <= 0) && N <= 10) && 0 <= x + 7) && y <= 0)) || ((((((((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && x <= 6) && 8 <= i) && 0 <= y + 2) && 0 <= x) && y <= 0)) || ((((((1 <= i && x <= 1) && 0 <= y) && N <= 10) && 0 <= x) || ((((1 <= i && 0 <= y) && 0 <= x + 1) && x <= 0) && N <= 10)) && y <= 0)) || ((((y <= 4 && ((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && N <= 10) && 9 <= i) && 0 <= x) && x <= 5)) || (((((((0 <= x + 2147483648 && 0 <= i) && 0 <= y + 2) && x <= 0) && N <= 10) && 9 <= i) && 0 <= x + 7) && y <= 0)) || (((((x <= 3 && 0 <= y) && 3 <= i) && N <= 10) && 0 <= x) && y <= 0)) || (((((0 <= y + 1 && 9 <= i) && x <= 8) && N <= 10) && 0 <= x) && y <= 0)) || (((((4 <= i && 0 <= y) && y <= 2) && x <= 2) && N <= 10) && 0 <= x)) || (((((0 <= i && 0 <= y) && x <= 0) && N <= 10) && 0 <= x) && y <= 0)) || (((((((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && y <= 2) && x <= 0) && N <= 10) && 0 <= x + 6) && 8 <= i)) || ((((5 <= i && 0 <= x + 2 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && 0 <= y + 3) && x <= 0) && y <= 0)) || (((((0 <= y + 5 && 5 <= i) && x <= 0) && N <= 10) && 0 <= x) && y <= 0)) || ((((((0 <= i && x <= 1) && 0 <= y) && N <= 10) && y <= 7) && 8 <= i) && 0 <= x)) || (((y <= 4 && 5 <= i) && ((0 <= i && x <= 1) && 0 <= y) && N <= 10) && 0 <= x)) || ((9 <= i && (x <= 6 && ((0 <= i && N <= 10) && 0 <= x) && 0 <= y + 2147483648) && 0 <= y + 3) && y <= 0)) || (((((2 <= i && 0 <= y) && x <= 2) && N <= 10) && 0 <= x) && y <= 0)) || (((((x <= 9 && 0 <= y + 1) && N <= 10) && 0 <= x) && 10 <= i) && y <= 0)) || ((((0 <= y + 4 && 8 <= i) && 0 <= x + 4 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && x <= 0) && y <= 0)) || ((((((0 <= i && 0 <= y) && x <= 0) && N <= 10) && 0 <= x) && y <= 6) && 6 <= i)) || (((((((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && x <= 0) && N <= 10) && 0 <= x + 5) && 5 <= i) && y <= 0)) || ((y <= 6 && 0 <= x + 4 && (0 <= y && (0 <= x + 2147483648 && 0 <= i) && N <= 10) && x <= 0) && 10 <= i)) || (((((7 <= i && 0 <= x + 6) && 0 <= y) && x <= 0) && y <= 1) && N <= 10)) || (((0 <= y && 6 <= i) && y <= 4 && 0 <= x + 2 && (0 <= x + 2147483648 && 0 <= i) && N <= 10) && x <= 0)) || ((((y <= 4 && ((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && N <= 10) && x <= 6) && 0 <= x) && 10 <= i)) || (((((4 <= i && 0 <= i && N <= 10) && 0 <= y) && y <= 3) && 0 <= x + 1) && x <= 0)) || ((((y <= 6 && 0 <= y) && 8 <= i) && 0 <= x + 2 && (0 <= x + 2147483648 && 0 <= i) && N <= 10) && x <= 0)) || ((((0 <= y + 4 && x <= 6) && 10 <= i) && ((0 <= i && N <= 10) && 0 <= x) && 0 <= y + 2147483648) && y <= 0)) || (((9 <= i && ((0 <= i && x <= 1) && 0 <= y) && N <= 10) && 0 <= x) && y <= 8)) || (((((((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && N <= 10) && x <= 8) && y <= 2) && 0 <= x) && 10 <= i)) || (((((7 <= i && 0 <= y) && y <= 5) && x <= 2) && N <= 10) && 0 <= x)) || (((((6 <= i && 0 <= y + 6) && x <= 0) && N <= 10) && 0 <= x) && y <= 0)) || ((((((0 <= i && x <= 2) && N <= 10) && 0 <= x) && 0 <= y + 2147483648) && y <= 0) && 10 <= i)) || ((((((7 <= i && 0 <= x + 1) && x <= 0) && N <= 10) || (((7 <= i && x <= 1) && N <= 10) && 0 <= x)) && 0 <= y + 6) && y <= 0)) || (((((0 <= x + 8 && 9 <= i) && 0 <= y) && x <= 0) && y <= 1) && N <= 10)) || (((7 <= i && ((0 <= i && x <= 1) && 0 <= y) && N <= 10) && y <= 6) && 0 <= x)) || ((((x <= 7 && 0 <= y + 3) && 10 <= i) && ((0 <= i && N <= 10) && 0 <= x) && 0 <= y + 2147483648) && y <= 0)) || ((((x <= 3 && 6 <= i) && ((0 <= i && N <= 10) && 0 <= x) && 0 <= y + 2147483648) && 0 <= y + 3) && y <= 0)) || (((y <= 4 && 7 <= i) && ((0 <= x + 3 && 0 <= i) && 0 <= y) && N <= 10) && x <= 0)) || ((((((0 <= i && N <= 10) && 0 <= y) && 0 <= x + 1) && 8 <= i) && y <= 7) && x <= 0)) || (((0 <= y + 4 && 7 <= i) && x <= 3 && ((0 <= i && N <= 10) && 0 <= x) && 0 <= y + 2147483648) && y <= 0)) || ((((((0 <= i && 0 <= y) && x <= 0) && N <= 10) && 0 <= x) && y <= 3) && 3 <= i)) || (((((y <= 4 && 0 <= y) && x <= 2) && 6 <= i) && N <= 10) && 0 <= x)) || ((((0 <= y + 5 && 0 <= x + 3 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && 8 <= i) && x <= 0) && y <= 0)) || ((((y <= 4 && ((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && N <= 10) && 0 <= x + 6) && x <= 0) && 10 <= i)) || ((((0 <= y + 4 && 8 <= i) && x <= 4) && ((0 <= i && N <= 10) && 0 <= x) && 0 <= y + 2147483648) && y <= 0)) || (((((0 <= x + 5 && 0 <= y) && 6 <= i) && x <= 0) && y <= 1) && N <= 10)) || (((((((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && N <= 10) && y <= 6) && x <= 4) && 0 <= x) && 10 <= i)) || (((((5 <= i && 0 <= y) && N <= 10) && 0 <= x) && y <= 0) && x <= 5)) || (((((0 <= y && x <= 8) && 8 <= i) && N <= 10) && 0 <= x) && y <= 0)) || (((((0 <= x + 3 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && 6 <= i) && 0 <= y + 3) && x <= 0) && y <= 0)) || (((((((0 <= x + 2147483648 && 0 <= i) && 0 <= y + 2) && x <= 0) && N <= 10) && 0 <= x + 6) && 8 <= i) && y <= 0)) || (((((x <= 9 && 9 <= i) && 0 <= y) && N <= 10) && 0 <= x) && y <= 0)) || (((((0 <= y + 1 && 5 <= i) && x <= 4) && N <= 10) && 0 <= x) && y <= 0)) || (((((0 <= y + 1 && 6 <= i) && N <= 10) && 0 <= x) && y <= 0) && x <= 5)) || ((((((0 <= i && 0 <= y) && x <= 0) && N <= 10) && 0 <= x) && 5 <= i) && y <= 5)) || (((((0 <= x + 4 && 5 <= i) && 0 <= y) && x <= 0) && y <= 1) && N <= 10)) || ((((7 <= i && ((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && N <= 10) && y <= 2) && 0 <= x) && x <= 5)) || ((((((((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && x <= 4) && 6 <= i) && 0 <= y + 2) && 0 <= x) && y <= 0)) || (((((0 <= y + 4 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && 0 <= x + 6) && x <= 0) && 10 <= i) && y <= 0)) || ((((((0 <= i && 0 <= y) && x <= 0) && N <= 10) && 0 <= x) && 7 <= i) && y <= 7)) || (((((0 <= y && x <= 2) && 3 <= i) && y <= 1) && N <= 10) && 0 <= x)) || (((((8 <= i && 0 <= y) && x <= 7) && y <= 1) && N <= 10) && 0 <= x)) || ((((0 <= y && (x <= 3 && 0 <= i) && N <= 10) && y <= 7) && 0 <= x) && 10 <= i)) || (((((9 <= i && 0 <= y) && x <= 8) && y <= 1) && N <= 10) && 0 <= x)) || ((((((0 <= x + 1 && 3 <= i) && x <= 0) && N <= 10) || (((x <= 1 && 3 <= i) && N <= 10) && 0 <= x)) && 0 <= y + 2) && y <= 0)) || (((0 <= x + 3 && 4 <= i) && (((0 <= x + 2147483648 && 0 <= y + 1) && 0 <= i) && x <= 0) && N <= 10) && y <= 0)) || (((0 <= y + 7 && 9 <= i) && x <= 0) && (0 <= x + 2 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && y <= 0)) || (((((0 <= x + 2 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && 8 <= i) && 0 <= y + 6) && x <= 0) && y <= 0)) || (((((x <= 6 && 0 <= y) && 6 <= i) && N <= 10) && 0 <= x) && y <= 0)) || ((((0 <= y && (x <= 3 && 0 <= i) && N <= 10) && 8 <= i) && y <= 5) && 0 <= x)) || (((((2 <= i && x <= 1) && 0 <= y) && y <= 1) && N <= 10) && 0 <= x)) || (((((2 <= i && 0 <= y + 2) && x <= 0) && N <= 10) && 0 <= x) && y <= 0)) || (((((((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && N <= 10) && y <= 5) && 0 <= x) && 10 <= i) && x <= 5)) || ((((((((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && 0 <= y + 3) && x <= 0) && 0 <= x + 7) && 10 <= i) && y <= 0)) || (((((0 <= y + 1 && 7 <= i) && x <= 6) && N <= 10) && 0 <= x) && y <= 0)) || (0 <= y + 9 && (((((x <= 1 && 9 <= i) && N <= 10) && 0 <= x) && y <= 0) || ((((9 <= i && 0 <= x + 1) && x <= 0) && N <= 10) && y <= 0)))) || ((((7 <= i && 0 <= y + 5) && 0 <= x + 2 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && x <= 0) && y <= 0)) || (((((((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && x <= 0) && N <= 10) && 0 <= x + 6) && 6 <= i) && y <= 0)) || (((0 <= y + 5 && ((0 <= x + 5 && x <= 0) && N <= 10) && 0 <= y + 2147483648) && 10 <= i) && y <= 0)) || ((y <= 4 && (((0 <= i && 0 <= y) && x <= 0) && N <= 10) && 0 <= x) && 4 <= i)) || ((((8 <= i && 0 <= y + 3) && ((0 <= i && N <= 10) && 0 <= x) && 0 <= y + 2147483648) && y <= 0) && x <= 5)) || ((0 <= y + 7 && (x <= 3 && ((0 <= i && N <= 10) && 0 <= x) && 0 <= y + 2147483648) && y <= 0) && 10 <= i)) || (((((((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && N <= 10) && x <= 4) && y <= 2) && 6 <= i) && 0 <= x)) || ((((0 <= y && 0 <= x + 2 && (0 <= x + 2147483648 && 0 <= i) && N <= 10) && x <= 0) && y <= 8) && 10 <= i)) || (((((7 <= i && 0 <= x + 4) && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && 0 <= y + 3) && x <= 0) && y <= 0)) || (((0 <= y + 7 && (0 <= x + 3 && N <= 10) && y <= 0) && x <= 0) && 10 <= i)) || (((9 <= i && y <= 6) && 0 <= y && (x <= 3 && 0 <= i) && N <= 10) && 0 <= x)) || (((0 <= x + 8 && 9 <= i) && (((0 <= x + 2147483648 && 0 <= y + 1) && 0 <= i) && x <= 0) && N <= 10) && y <= 0)) || ((((((0 <= i && N <= 10) && 0 <= y) && y <= 2) && 0 <= x + 1) && 3 <= i) && x <= 0)) || ((((((0 <= y + 5 && 0 <= x + 1) && 6 <= i) && x <= 0) && N <= 10) || ((((0 <= y + 5 && x <= 1) && 6 <= i) && N <= 10) && 0 <= x)) && y <= 0)) || (((8 <= i && 0 <= y + 6) && (((0 <= i && x <= 2) && N <= 10) && 0 <= x) && 0 <= y + 2147483648) && y <= 0)) || (((((0 <= x + 5 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && 8 <= i) && 0 <= y + 3) && x <= 0) && y <= 0)) || ((((7 <= i && 0 <= y) && y <= 5) && 0 <= x + 2 && (0 <= x + 2147483648 && 0 <= i) && N <= 10) && x <= 0)) || (((((((0 <= x + 2147483648 && 0 <= i) && 0 <= y + 2) && x <= 0) && N <= 10) && 0 <= x + 4) && 6 <= i) && y <= 0)) || (((((0 <= i && x <= 1) && 0 <= y) && N <= 10) && 0 <= x) && 10 <= i)) || ((((((0 <= i && N <= 10) && 0 <= y) && 0 <= x + 1) && y <= 5) && 6 <= i) && x <= 0)) || (((((((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && N <= 10) && 9 <= i) && y <= 5) && x <= 4) && 0 <= x)) || (((((((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && N <= 10) && y <= 3) && 0 <= x) && 9 <= i) && x <= 6)) || (((0 <= x + 2 && (((0 <= x + 2147483648 && 0 <= y + 1) && 0 <= i) && x <= 0) && N <= 10) && 3 <= i) && y <= 0)) || ((((0 <= y + 6 && 0 <= x + 4 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && x <= 0) && 10 <= i) && y <= 0)) || (((((x <= 3 && 4 <= i) && 0 <= y) && y <= 1) && N <= 10) && 0 <= x)) || ((x <= 0 && (0 <= x + 2 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && y <= 0) && 10 <= i)) || ((((y <= 3 && ((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && N <= 10) && x <= 0) && 0 <= x + 7) && 10 <= i)) || (((((0 <= y + 8 && 8 <= i) && x <= 0) && N <= 10) && 0 <= x) && y <= 0)) || ((((x <= 4 && 0 <= y + 6) && 10 <= i) && ((0 <= i && N <= 10) && 0 <= x) && 0 <= y + 2147483648) && y <= 0)) || (((((((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && y <= 2) && x <= 0) && N <= 10) && 9 <= i) && 0 <= x + 7)) || (((0 <= x + 5 && (((0 <= x + 2147483648 && 0 <= y + 1) && 0 <= i) && x <= 0) && N <= 10) && 6 <= i) && y <= 0)) || (((0 <= x + 8 && (((0 <= x + 2147483648 && 0 <= i) && 0 <= y + 2) && x <= 0) && N <= 10) && 10 <= i) && y <= 0)) || (((((7 <= i && 0 <= y) && x <= 7) && N <= 10) && 0 <= x) && y <= 0)) || (((((2 <= i && 0 <= y) && 0 <= x + 1) && x <= 0) && y <= 1) && N <= 10)) || (((y <= 4 && 0 <= y) && (((0 <= i && 0 <= x + 4) && x <= 0) && N <= 10) && 0 <= y + 2147483648) && 8 <= i)) || ((((((x <= 1 && 4 <= i) && N <= 10) && 0 <= x) || (((4 <= i && 0 <= x + 1) && x <= 0) && N <= 10)) && 0 <= y + 3) && y <= 0)) || (((((0 <= x + 2 && 0 <= y) && 3 <= i) && x <= 0) && y <= 1) && N <= 10)) || (((((0 <= x + 3 && 4 <= i) && 0 <= y) && x <= 0) && y <= 1) && N <= 10)) || (((y <= 7 && ((0 <= x + 3 && 0 <= i) && 0 <= y) && N <= 10) && x <= 0) && 10 <= i)) || (((((2 <= i && 0 <= y) && y <= 2) && x <= 0) && N <= 10) && 0 <= x)) || (((((x <= 1 && 0 <= y) && y <= 2) && 3 <= i) && N <= 10) && 0 <= x)) || (((((0 <= y && 8 <= i) && x <= 0) && y <= 1) && 0 <= x + 7) && N <= 10)) || (((((0 <= x + 4 && 0 <= y) && (0 <= x + 2147483648 && 0 <= i) && N <= 10) && y <= 2) && 6 <= i) && x <= 0)) || (((((x <= 8 && 0 <= y + 2) && N <= 10) && 0 <= x) && 10 <= i) && y <= 0)) || (((9 <= i && 0 <= y) && y <= 5) && (((0 <= i && 0 <= x + 4) && x <= 0) && N <= 10) && 0 <= y + 2147483648)) || (((((((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && y <= 2) && x <= 0) && N <= 10) && 7 <= i) && 0 <= x + 5)) || ((0 <= x + 8 && 10 <= i) && ((((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && y <= 2) && x <= 0) && N <= 10)) || ((((x <= 6 && ((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && N <= 10) && 8 <= i) && y <= 2) && 0 <= x)) || ((((y <= 4 && ((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && N <= 10) && 8 <= i) && x <= 4) && 0 <= x)) || (7 <= i && ((y <= 4 && x <= 3) && 0 <= y) && ((0 <= i && N <= 10) && 0 <= x) && 0 <= y + 2147483648)) || ((((x <= 3 && 5 <= i) && 0 <= y + 2) && ((0 <= i && N <= 10) && 0 <= x) && 0 <= y + 2147483648) && y <= 0)) || ((((0 <= y + 5 && 10 <= i) && ((0 <= i && N <= 10) && 0 <= x) && 0 <= y + 2147483648) && y <= 0) && x <= 5)) || ((((0 <= y + 5 && 9 <= i) && 0 <= x + 4 && ((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && x <= 0) && y <= 0)) || (((0 <= x + 2 && 2 <= i) && (((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && x <= 0) && N <= 10) && y <= 0)) || (((9 <= i && (y <= 4 && 0 <= x + 5) && N <= 10) && 0 <= y) && x <= 0)) || (((7 <= i && 0 <= y + 5) && (((0 <= i && x <= 2) && N <= 10) && 0 <= x) && 0 <= y + 2147483648) && y <= 0)) || ((((((2 <= i && 0 <= y + 1) && 0 <= x + 1) && x <= 0) && N <= 10) || ((((2 <= i && 0 <= y + 1) && x <= 1) && N <= 10) && 0 <= x)) && y <= 0)) || ((((4 <= i && 0 <= y) && y <= 2) && 0 <= x + 2 && (0 <= x + 2147483648 && 0 <= i) && N <= 10) && x <= 0)) || (((((((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && N <= 10) && y <= 3) && 0 <= x) && x <= 7) && 10 <= i)) || ((0 <= y + 4 && ((((5 <= i && 0 <= x + 1) && x <= 0) && N <= 10) || (((x <= 1 && 5 <= i) && N <= 10) && 0 <= x))) && y <= 0)) || (((0 <= x + 3 && (((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && x <= 0) && N <= 10) && 3 <= i) && y <= 0)) || ((((7 <= i && ((0 <= x + 2147483648 && 0 <= i) && 0 <= y) && N <= 10) && y <= 3) && x <= 4) && 0 <= x)) || (((7 <= i && 0 <= x + 6) && (((0 <= x + 2147483648 && 0 <= y + 1) && 0 <= i) && x <= 0) && N <= 10) && y <= 0)) || ((((((((0 <= x + 2147483648 && 0 <= i) && N <= 10) && 0 <= y + 2147483648) && 9 <= i) && x <= 7) && 0 <= y + 2) && 0 <= x) && y <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 36 locations, 10 error locations. SAFE Result, 132.3s OverallTime, 45 OverallIterations, 12 TraceHistogramMax, 14.4s AutomataDifference, 0.0s DeadEndRemovalTime, 98.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 1320 SDtfs, 7931 SDslu, 5774 SDs, 0 SdLazy, 1770 SolverSat, 1185 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2498 GetRequests, 2167 SyntacticMatches, 0 SemanticMatches, 331 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2405 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80157occurred in iteration=41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 15.3s AutomataMinimizationTime, 45 MinimizatonAttempts, 203067 StatesRemovedByMinimization, 42 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 1838 NumberOfFragments, 5715 HoareAnnotationTreeSize, 5 FomulaSimplifications, 604260 FormulaSimplificationTreeSizeReduction, 39.1s HoareSimplificationTime, 5 FomulaSimplificationsInter, 87620 FormulaSimplificationTreeSizeReductionInter, 59.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 4417 NumberOfCodeBlocks, 4417 NumberOfCodeBlocksAsserted, 188 NumberOfCheckSat, 4333 ConstructedInterpolants, 0 QuantifiedInterpolants, 1059983 SizeOfPredicates, 2 NumberOfNonLiveVariables, 5003 ConjunctsInSsa, 280 ConjunctsInUnsatCore, 84 InterpolantComputations, 9 PerfectInterpolantSequences, 464/12684 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...