./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 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/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_023ec078-4061-4393-898a-466251db6c08/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/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 0.1.23-0cd3be1 [2018-11-28 13:06:46,808 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 13:06:46,809 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 13:06:46,816 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 13:06:46,816 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 13:06:46,816 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 13:06:46,817 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 13:06:46,818 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 13:06:46,819 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 13:06:46,820 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 13:06:46,820 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 13:06:46,821 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 13:06:46,821 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 13:06:46,822 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 13:06:46,823 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 13:06:46,823 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 13:06:46,824 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 13:06:46,825 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 13:06:46,826 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 13:06:46,827 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 13:06:46,828 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 13:06:46,829 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 13:06:46,830 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 13:06:46,830 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 13:06:46,830 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 13:06:46,831 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 13:06:46,831 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 13:06:46,832 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 13:06:46,832 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 13:06:46,833 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 13:06:46,833 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 13:06:46,834 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 13:06:46,834 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 13:06:46,834 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 13:06:46,835 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 13:06:46,835 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 13:06:46,835 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-28 13:06:46,844 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 13:06:46,844 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 13:06:46,845 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 13:06:46,845 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 13:06:46,845 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 13:06:46,845 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 13:06:46,846 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 13:06:46,846 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 13:06:46,846 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 13:06:46,846 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 13:06:46,846 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 13:06:46,846 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 13:06:46,846 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 13:06:46,846 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 13:06:46,847 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-28 13:06:46,847 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 13:06:46,847 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 13:06:46,847 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 13:06:46,847 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 13:06:46,847 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 13:06:46,847 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 13:06:46,848 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 13:06:46,848 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 13:06:46,848 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 13:06:46,848 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 13:06:46,848 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 13:06:46,848 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 13:06:46,848 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 13:06:46,848 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 13:06:46,848 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_023ec078-4061-4393-898a-466251db6c08/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 [2018-11-28 13:06:46,870 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 13:06:46,878 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 13:06:46,880 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 13:06:46,881 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 13:06:46,881 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 13:06:46,881 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d_true-termination_true-no-overflow.c [2018-11-28 13:06:46,918 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/bin-2019/uautomizer/data/d232ea327/6df8e1a033544ef89c7e4d9fab8b89b2/FLAGb024b1ae7 [2018-11-28 13:06:47,317 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 13:06:47,317 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d_true-termination_true-no-overflow.c [2018-11-28 13:06:47,321 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/bin-2019/uautomizer/data/d232ea327/6df8e1a033544ef89c7e4d9fab8b89b2/FLAGb024b1ae7 [2018-11-28 13:06:47,329 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/bin-2019/uautomizer/data/d232ea327/6df8e1a033544ef89c7e4d9fab8b89b2 [2018-11-28 13:06:47,331 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 13:06:47,332 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 13:06:47,332 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 13:06:47,333 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 13:06:47,335 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 13:06:47,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:06:47" (1/1) ... [2018-11-28 13:06:47,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b52991 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:06:47, skipping insertion in model container [2018-11-28 13:06:47,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:06:47" (1/1) ... [2018-11-28 13:06:47,341 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 13:06:47,350 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 13:06:47,444 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:06:47,446 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 13:06:47,456 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:06:47,463 INFO L195 MainTranslator]: Completed translation [2018-11-28 13:06:47,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:06:47 WrapperNode [2018-11-28 13:06:47,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 13:06:47,464 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 13:06:47,464 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 13:06:47,464 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 13:06:47,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:06:47" (1/1) ... [2018-11-28 13:06:47,473 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:06:47" (1/1) ... [2018-11-28 13:06:47,476 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 13:06:47,477 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 13:06:47,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 13:06:47,477 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 13:06:47,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:06:47" (1/1) ... [2018-11-28 13:06:47,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:06:47" (1/1) ... [2018-11-28 13:06:47,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:06:47" (1/1) ... [2018-11-28 13:06:47,483 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:06:47" (1/1) ... [2018-11-28 13:06:47,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:06:47" (1/1) ... [2018-11-28 13:06:47,489 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:06:47" (1/1) ... [2018-11-28 13:06:47,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:06:47" (1/1) ... [2018-11-28 13:06:47,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 13:06:47,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 13:06:47,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 13:06:47,491 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 13:06:47,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:06:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 13:06:47,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 13:06:47,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 13:06:47,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 13:06:47,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 13:06:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 13:06:47,561 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 13:06:47,670 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 13:06:47,670 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-28 13:06:47,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:06:47 BoogieIcfgContainer [2018-11-28 13:06:47,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 13:06:47,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 13:06:47,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 13:06:47,673 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 13:06:47,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 01:06:47" (1/3) ... [2018-11-28 13:06:47,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ff7d6ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:06:47, skipping insertion in model container [2018-11-28 13:06:47,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:06:47" (2/3) ... [2018-11-28 13:06:47,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ff7d6ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:06:47, skipping insertion in model container [2018-11-28 13:06:47,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:06:47" (3/3) ... [2018-11-28 13:06:47,675 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-random2d_true-termination_true-no-overflow.c [2018-11-28 13:06:47,681 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 13:06:47,686 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2018-11-28 13:06:47,698 INFO L257 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2018-11-28 13:06:47,722 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 13:06:47,722 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 13:06:47,723 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 13:06:47,723 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 13:06:47,723 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 13:06:47,723 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 13:06:47,723 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 13:06:47,723 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 13:06:47,723 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 13:06:47,736 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-11-28 13:06:47,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 13:06:47,740 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:06:47,740 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:47,741 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:06:47,744 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:47,744 INFO L82 PathProgramCache]: Analyzing trace with hash 252417093, now seen corresponding path program 1 times [2018-11-28 13:06:47,745 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:47,746 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:47,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:47,781 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:06:47,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:47,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:47,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:47,826 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:06:47,826 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 13:06:47,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 13:06:47,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 13:06:47,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 13:06:47,837 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 3 states. [2018-11-28 13:06:47,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:06:47,875 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2018-11-28 13:06:47,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 13:06:47,876 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 13:06:47,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:06:47,884 INFO L225 Difference]: With dead ends: 48 [2018-11-28 13:06:47,884 INFO L226 Difference]: Without dead ends: 34 [2018-11-28 13:06:47,886 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 13:06:47,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-28 13:06:47,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2018-11-28 13:06:47,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-28 13:06:47,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2018-11-28 13:06:47,910 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 7 [2018-11-28 13:06:47,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:06:47,911 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2018-11-28 13:06:47,911 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 13:06:47,911 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2018-11-28 13:06:47,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-28 13:06:47,911 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:06:47,911 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:47,912 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:06:47,912 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:47,912 INFO L82 PathProgramCache]: Analyzing trace with hash -765004662, now seen corresponding path program 1 times [2018-11-28 13:06:47,912 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:47,912 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:47,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:47,913 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:06:47,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:47,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:47,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:47,927 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:06:47,927 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 13:06:47,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 13:06:47,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 13:06:47,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 13:06:47,929 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 3 states. [2018-11-28 13:06:47,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:06:47,945 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2018-11-28 13:06:47,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 13:06:47,946 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-28 13:06:47,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:06:47,946 INFO L225 Difference]: With dead ends: 33 [2018-11-28 13:06:47,946 INFO L226 Difference]: Without dead ends: 32 [2018-11-28 13:06:47,947 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 13:06:47,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-28 13:06:47,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-28 13:06:47,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-28 13:06:47,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2018-11-28 13:06:47,952 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 8 [2018-11-28 13:06:47,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:06:47,952 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2018-11-28 13:06:47,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 13:06:47,952 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2018-11-28 13:06:47,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 13:06:47,952 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:06:47,952 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:47,953 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:06:47,953 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:47,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1157363318, now seen corresponding path program 1 times [2018-11-28 13:06:47,953 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:47,953 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:47,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:47,955 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:06:47,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:47,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:47,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:47,973 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:06:47,973 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 13:06:47,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 13:06:47,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 13:06:47,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 13:06:47,974 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand 3 states. [2018-11-28 13:06:48,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:06:48,012 INFO L93 Difference]: Finished difference Result 55 states and 67 transitions. [2018-11-28 13:06:48,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 13:06:48,013 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-28 13:06:48,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:06:48,014 INFO L225 Difference]: With dead ends: 55 [2018-11-28 13:06:48,015 INFO L226 Difference]: Without dead ends: 53 [2018-11-28 13:06:48,015 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 13:06:48,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-11-28 13:06:48,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 47. [2018-11-28 13:06:48,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-11-28 13:06:48,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 63 transitions. [2018-11-28 13:06:48,021 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 63 transitions. Word has length 11 [2018-11-28 13:06:48,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:06:48,021 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 63 transitions. [2018-11-28 13:06:48,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 13:06:48,022 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 63 transitions. [2018-11-28 13:06:48,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 13:06:48,022 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:06:48,022 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:48,023 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:06:48,023 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:48,023 INFO L82 PathProgramCache]: Analyzing trace with hash -1157326159, now seen corresponding path program 1 times [2018-11-28 13:06:48,023 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:48,024 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:48,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:48,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:06:48,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:48,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:48,055 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 13:06:48,055 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:06:48,055 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 13:06:48,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:06:48,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:48,077 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:06:48,113 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:48,128 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:06:48,128 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2018-11-28 13:06:48,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 13:06:48,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 13:06:48,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-28 13:06:48,129 INFO L87 Difference]: Start difference. First operand 47 states and 63 transitions. Second operand 6 states. [2018-11-28 13:06:48,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:06:48,200 INFO L93 Difference]: Finished difference Result 108 states and 146 transitions. [2018-11-28 13:06:48,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 13:06:48,201 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2018-11-28 13:06:48,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:06:48,202 INFO L225 Difference]: With dead ends: 108 [2018-11-28 13:06:48,202 INFO L226 Difference]: Without dead ends: 107 [2018-11-28 13:06:48,202 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 [2018-11-28 13:06:48,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2018-11-28 13:06:48,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 44. [2018-11-28 13:06:48,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-28 13:06:48,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 59 transitions. [2018-11-28 13:06:48,210 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 59 transitions. Word has length 11 [2018-11-28 13:06:48,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:06:48,210 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 59 transitions. [2018-11-28 13:06:48,210 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 13:06:48,210 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 59 transitions. [2018-11-28 13:06:48,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-28 13:06:48,210 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:06:48,211 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:48,211 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:06:48,211 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:48,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1518524433, now seen corresponding path program 1 times [2018-11-28 13:06:48,211 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:48,211 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:48,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:48,213 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:06:48,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:48,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:48,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:48,232 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:06:48,232 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 13:06:48,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 13:06:48,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 13:06:48,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 13:06:48,233 INFO L87 Difference]: Start difference. First operand 44 states and 59 transitions. Second operand 3 states. [2018-11-28 13:06:48,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:06:48,268 INFO L93 Difference]: Finished difference Result 81 states and 113 transitions. [2018-11-28 13:06:48,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 13:06:48,268 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-11-28 13:06:48,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:06:48,269 INFO L225 Difference]: With dead ends: 81 [2018-11-28 13:06:48,269 INFO L226 Difference]: Without dead ends: 79 [2018-11-28 13:06:48,269 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 [2018-11-28 13:06:48,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-11-28 13:06:48,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 75. [2018-11-28 13:06:48,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-11-28 13:06:48,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 110 transitions. [2018-11-28 13:06:48,275 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 110 transitions. Word has length 12 [2018-11-28 13:06:48,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:06:48,275 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 110 transitions. [2018-11-28 13:06:48,275 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 13:06:48,275 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 110 transitions. [2018-11-28 13:06:48,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 13:06:48,276 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:06:48,276 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:48,276 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:06:48,276 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:48,276 INFO L82 PathProgramCache]: Analyzing trace with hash 170574579, now seen corresponding path program 1 times [2018-11-28 13:06:48,276 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:48,276 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:48,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:48,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:06:48,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:48,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:48,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:48,299 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:06:48,299 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 13:06:48,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 13:06:48,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 13:06:48,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 13:06:48,300 INFO L87 Difference]: Start difference. First operand 75 states and 110 transitions. Second operand 3 states. [2018-11-28 13:06:48,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:06:48,343 INFO L93 Difference]: Finished difference Result 143 states and 215 transitions. [2018-11-28 13:06:48,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 13:06:48,343 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-11-28 13:06:48,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:06:48,344 INFO L225 Difference]: With dead ends: 143 [2018-11-28 13:06:48,344 INFO L226 Difference]: Without dead ends: 141 [2018-11-28 13:06:48,344 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 13:06:48,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-11-28 13:06:48,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 133. [2018-11-28 13:06:48,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2018-11-28 13:06:48,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 199 transitions. [2018-11-28 13:06:48,355 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 199 transitions. Word has length 13 [2018-11-28 13:06:48,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:06:48,355 INFO L480 AbstractCegarLoop]: Abstraction has 133 states and 199 transitions. [2018-11-28 13:06:48,355 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 13:06:48,355 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 199 transitions. [2018-11-28 13:06:48,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-28 13:06:48,356 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:06:48,356 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:48,356 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:06:48,357 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:48,357 INFO L82 PathProgramCache]: Analyzing trace with hash 992844728, now seen corresponding path program 1 times [2018-11-28 13:06:48,357 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:48,357 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:48,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:48,358 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:06:48,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:48,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:48,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:48,377 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:06:48,377 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 13:06:48,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 13:06:48,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 13:06:48,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 13:06:48,378 INFO L87 Difference]: Start difference. First operand 133 states and 199 transitions. Second operand 3 states. [2018-11-28 13:06:48,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:06:48,400 INFO L93 Difference]: Finished difference Result 259 states and 393 transitions. [2018-11-28 13:06:48,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 13:06:48,401 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-11-28 13:06:48,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:06:48,402 INFO L225 Difference]: With dead ends: 259 [2018-11-28 13:06:48,402 INFO L226 Difference]: Without dead ends: 257 [2018-11-28 13:06:48,403 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 13:06:48,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2018-11-28 13:06:48,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 253. [2018-11-28 13:06:48,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2018-11-28 13:06:48,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 381 transitions. [2018-11-28 13:06:48,421 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 381 transitions. Word has length 14 [2018-11-28 13:06:48,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:06:48,421 INFO L480 AbstractCegarLoop]: Abstraction has 253 states and 381 transitions. [2018-11-28 13:06:48,421 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 13:06:48,421 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 381 transitions. [2018-11-28 13:06:48,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-28 13:06:48,422 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:06:48,422 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:48,422 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:06:48,422 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:48,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1784292138, now seen corresponding path program 1 times [2018-11-28 13:06:48,423 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:48,423 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:48,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:48,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:06:48,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:48,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:48,442 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:48,442 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:06:48,442 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 13:06:48,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:06:48,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:48,466 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:06:48,469 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:48,484 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:06:48,485 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2018-11-28 13:06:48,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 13:06:48,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 13:06:48,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 13:06:48,485 INFO L87 Difference]: Start difference. First operand 253 states and 381 transitions. Second operand 4 states. [2018-11-28 13:06:48,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:06:48,533 INFO L93 Difference]: Finished difference Result 453 states and 692 transitions. [2018-11-28 13:06:48,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 13:06:48,533 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-11-28 13:06:48,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:06:48,535 INFO L225 Difference]: With dead ends: 453 [2018-11-28 13:06:48,535 INFO L226 Difference]: Without dead ends: 451 [2018-11-28 13:06:48,535 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 [2018-11-28 13:06:48,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2018-11-28 13:06:48,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 361. [2018-11-28 13:06:48,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2018-11-28 13:06:48,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 547 transitions. [2018-11-28 13:06:48,551 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 547 transitions. Word has length 18 [2018-11-28 13:06:48,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:06:48,552 INFO L480 AbstractCegarLoop]: Abstraction has 361 states and 547 transitions. [2018-11-28 13:06:48,552 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 13:06:48,552 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 547 transitions. [2018-11-28 13:06:48,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-28 13:06:48,552 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:06:48,552 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:48,553 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:06:48,553 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:48,553 INFO L82 PathProgramCache]: Analyzing trace with hash -457667387, now seen corresponding path program 1 times [2018-11-28 13:06:48,553 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:48,553 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:48,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:48,554 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:06:48,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:48,573 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:48,573 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:06:48,574 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 13:06:48,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:06:48,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:48,586 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:06:48,612 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:48,626 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-28 13:06:48,626 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-11-28 13:06:48,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 13:06:48,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 13:06:48,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-28 13:06:48,627 INFO L87 Difference]: Start difference. First operand 361 states and 547 transitions. Second operand 5 states. [2018-11-28 13:06:48,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:06:48,670 INFO L93 Difference]: Finished difference Result 614 states and 943 transitions. [2018-11-28 13:06:48,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 13:06:48,671 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-11-28 13:06:48,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:06:48,672 INFO L225 Difference]: With dead ends: 614 [2018-11-28 13:06:48,672 INFO L226 Difference]: Without dead ends: 612 [2018-11-28 13:06:48,673 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 [2018-11-28 13:06:48,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2018-11-28 13:06:48,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 468. [2018-11-28 13:06:48,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2018-11-28 13:06:48,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 705 transitions. [2018-11-28 13:06:48,693 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 705 transitions. Word has length 20 [2018-11-28 13:06:48,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:06:48,693 INFO L480 AbstractCegarLoop]: Abstraction has 468 states and 705 transitions. [2018-11-28 13:06:48,693 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 13:06:48,694 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 705 transitions. [2018-11-28 13:06:48,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 13:06:48,694 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:06:48,695 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:48,695 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:06:48,695 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:48,695 INFO L82 PathProgramCache]: Analyzing trace with hash -789737976, now seen corresponding path program 1 times [2018-11-28 13:06:48,696 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:48,696 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:48,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:48,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:06:48,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:48,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:48,722 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:48,723 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:06:48,723 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 13:06:48,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:06:48,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:48,744 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:06:48,747 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:48,761 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:06:48,761 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2018-11-28 13:06:48,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 13:06:48,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 13:06:48,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 13:06:48,762 INFO L87 Difference]: Start difference. First operand 468 states and 705 transitions. Second operand 4 states. [2018-11-28 13:06:48,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:06:48,810 INFO L93 Difference]: Finished difference Result 838 states and 1288 transitions. [2018-11-28 13:06:48,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 13:06:48,810 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-11-28 13:06:48,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:06:48,812 INFO L225 Difference]: With dead ends: 838 [2018-11-28 13:06:48,812 INFO L226 Difference]: Without dead ends: 836 [2018-11-28 13:06:48,813 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 [2018-11-28 13:06:48,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2018-11-28 13:06:48,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 672. [2018-11-28 13:06:48,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 672 states. [2018-11-28 13:06:48,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 1011 transitions. [2018-11-28 13:06:48,830 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 1011 transitions. Word has length 22 [2018-11-28 13:06:48,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:06:48,830 INFO L480 AbstractCegarLoop]: Abstraction has 672 states and 1011 transitions. [2018-11-28 13:06:48,830 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 13:06:48,831 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 1011 transitions. [2018-11-28 13:06:48,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 13:06:48,831 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:06:48,832 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:48,832 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:06:48,832 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:48,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1545985083, now seen corresponding path program 1 times [2018-11-28 13:06:48,832 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:48,832 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:48,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:48,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:06:48,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:48,858 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:48,858 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:06:48,858 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 13:06:48,875 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:06:48,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:48,882 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:06:48,888 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:48,903 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-28 13:06:48,903 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-11-28 13:06:48,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 13:06:48,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 13:06:48,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-28 13:06:48,904 INFO L87 Difference]: Start difference. First operand 672 states and 1011 transitions. Second operand 5 states. [2018-11-28 13:06:48,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:06:48,955 INFO L93 Difference]: Finished difference Result 1143 states and 1751 transitions. [2018-11-28 13:06:48,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 13:06:48,955 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2018-11-28 13:06:48,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:06:48,958 INFO L225 Difference]: With dead ends: 1143 [2018-11-28 13:06:48,958 INFO L226 Difference]: Without dead ends: 1141 [2018-11-28 13:06:48,958 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 [2018-11-28 13:06:48,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2018-11-28 13:06:48,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 875. [2018-11-28 13:06:48,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 875 states. [2018-11-28 13:06:48,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1301 transitions. [2018-11-28 13:06:48,981 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1301 transitions. Word has length 24 [2018-11-28 13:06:48,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:06:48,981 INFO L480 AbstractCegarLoop]: Abstraction has 875 states and 1301 transitions. [2018-11-28 13:06:48,981 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 13:06:48,982 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1301 transitions. [2018-11-28 13:06:48,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 13:06:48,982 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:06:48,983 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:48,983 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:06:48,983 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:48,983 INFO L82 PathProgramCache]: Analyzing trace with hash 582614026, now seen corresponding path program 2 times [2018-11-28 13:06:48,983 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:48,984 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:48,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:48,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:06:48,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:48,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:49,031 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:49,032 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:06:49,032 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 13:06:49,050 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 13:06:49,060 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 13:06:49,060 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:06:49,061 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:06:49,065 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:49,083 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:06:49,083 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-11-28 13:06:49,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 13:06:49,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 13:06:49,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-28 13:06:49,084 INFO L87 Difference]: Start difference. First operand 875 states and 1301 transitions. Second operand 5 states. [2018-11-28 13:06:49,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:06:49,137 INFO L93 Difference]: Finished difference Result 1508 states and 2270 transitions. [2018-11-28 13:06:49,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 13:06:49,138 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-11-28 13:06:49,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:06:49,141 INFO L225 Difference]: With dead ends: 1508 [2018-11-28 13:06:49,141 INFO L226 Difference]: Without dead ends: 1506 [2018-11-28 13:06:49,142 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 [2018-11-28 13:06:49,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2018-11-28 13:06:49,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1197. [2018-11-28 13:06:49,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1197 states. [2018-11-28 13:06:49,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1772 transitions. [2018-11-28 13:06:49,170 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1772 transitions. Word has length 25 [2018-11-28 13:06:49,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:06:49,171 INFO L480 AbstractCegarLoop]: Abstraction has 1197 states and 1772 transitions. [2018-11-28 13:06:49,171 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 13:06:49,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1772 transitions. [2018-11-28 13:06:49,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-28 13:06:49,172 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:06:49,172 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:49,173 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:06:49,173 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:49,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1259703649, now seen corresponding path program 1 times [2018-11-28 13:06:49,173 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:49,173 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:49,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:49,174 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:06:49,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:49,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:49,215 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:49,215 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:06:49,215 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 13:06:49,231 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:06:49,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:49,239 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:06:49,243 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:49,258 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:06:49,258 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-11-28 13:06:49,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 13:06:49,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 13:06:49,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-28 13:06:49,259 INFO L87 Difference]: Start difference. First operand 1197 states and 1772 transitions. Second operand 5 states. [2018-11-28 13:06:49,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:06:49,315 INFO L93 Difference]: Finished difference Result 1955 states and 2906 transitions. [2018-11-28 13:06:49,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 13:06:49,315 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2018-11-28 13:06:49,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:06:49,319 INFO L225 Difference]: With dead ends: 1955 [2018-11-28 13:06:49,319 INFO L226 Difference]: Without dead ends: 1954 [2018-11-28 13:06:49,320 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 [2018-11-28 13:06:49,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2018-11-28 13:06:49,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1433. [2018-11-28 13:06:49,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1433 states. [2018-11-28 13:06:49,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1433 states to 1433 states and 2118 transitions. [2018-11-28 13:06:49,356 INFO L78 Accepts]: Start accepts. Automaton has 1433 states and 2118 transitions. Word has length 29 [2018-11-28 13:06:49,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:06:49,356 INFO L480 AbstractCegarLoop]: Abstraction has 1433 states and 2118 transitions. [2018-11-28 13:06:49,356 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 13:06:49,356 INFO L276 IsEmpty]: Start isEmpty. Operand 1433 states and 2118 transitions. [2018-11-28 13:06:49,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-28 13:06:49,357 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:06:49,357 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:49,358 INFO L423 AbstractCegarLoop]: === Iteration 14 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:06:49,358 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:49,358 INFO L82 PathProgramCache]: Analyzing trace with hash -886740333, now seen corresponding path program 2 times [2018-11-28 13:06:49,358 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:49,358 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:49,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:49,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:06:49,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:49,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:49,403 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:49,403 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:06:49,403 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 13:06:49,425 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 13:06:49,438 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 13:06:49,438 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:06:49,440 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:06:49,444 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:49,469 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:06:49,469 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-11-28 13:06:49,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 13:06:49,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 13:06:49,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-28 13:06:49,470 INFO L87 Difference]: Start difference. First operand 1433 states and 2118 transitions. Second operand 5 states. [2018-11-28 13:06:49,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:06:49,569 INFO L93 Difference]: Finished difference Result 2466 states and 3697 transitions. [2018-11-28 13:06:49,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 13:06:49,570 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2018-11-28 13:06:49,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:06:49,578 INFO L225 Difference]: With dead ends: 2466 [2018-11-28 13:06:49,578 INFO L226 Difference]: Without dead ends: 2464 [2018-11-28 13:06:49,580 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 [2018-11-28 13:06:49,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2464 states. [2018-11-28 13:06:49,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2464 to 1963. [2018-11-28 13:06:49,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1963 states. [2018-11-28 13:06:49,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1963 states to 1963 states and 2886 transitions. [2018-11-28 13:06:49,642 INFO L78 Accepts]: Start accepts. Automaton has 1963 states and 2886 transitions. Word has length 31 [2018-11-28 13:06:49,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:06:49,643 INFO L480 AbstractCegarLoop]: Abstraction has 1963 states and 2886 transitions. [2018-11-28 13:06:49,643 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 13:06:49,643 INFO L276 IsEmpty]: Start isEmpty. Operand 1963 states and 2886 transitions. [2018-11-28 13:06:49,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 13:06:49,644 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:06:49,644 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:49,644 INFO L423 AbstractCegarLoop]: === Iteration 15 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:06:49,644 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:49,644 INFO L82 PathProgramCache]: Analyzing trace with hash -716039594, now seen corresponding path program 3 times [2018-11-28 13:06:49,645 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:49,645 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:49,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:49,646 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:06:49,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:49,693 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:49,693 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:06:49,693 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 13:06:49,709 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-28 13:06:49,722 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-11-28 13:06:49,722 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:06:49,724 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:06:49,728 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:49,751 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:06:49,752 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2018-11-28 13:06:49,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 13:06:49,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 13:06:49,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-28 13:06:49,752 INFO L87 Difference]: Start difference. First operand 1963 states and 2886 transitions. Second operand 6 states. [2018-11-28 13:06:49,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:06:49,852 INFO L93 Difference]: Finished difference Result 3177 states and 4736 transitions. [2018-11-28 13:06:49,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 13:06:49,853 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2018-11-28 13:06:49,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:06:49,862 INFO L225 Difference]: With dead ends: 3177 [2018-11-28 13:06:49,862 INFO L226 Difference]: Without dead ends: 3175 [2018-11-28 13:06:49,864 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 [2018-11-28 13:06:49,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3175 states. [2018-11-28 13:06:49,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3175 to 2567. [2018-11-28 13:06:49,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2567 states. [2018-11-28 13:06:49,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2567 states to 2567 states and 3753 transitions. [2018-11-28 13:06:49,944 INFO L78 Accepts]: Start accepts. Automaton has 2567 states and 3753 transitions. Word has length 32 [2018-11-28 13:06:49,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:06:49,944 INFO L480 AbstractCegarLoop]: Abstraction has 2567 states and 3753 transitions. [2018-11-28 13:06:49,944 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 13:06:49,944 INFO L276 IsEmpty]: Start isEmpty. Operand 2567 states and 3753 transitions. [2018-11-28 13:06:49,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-28 13:06:49,945 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:06:49,945 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:49,945 INFO L423 AbstractCegarLoop]: === Iteration 16 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:06:49,946 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:49,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1327564892, now seen corresponding path program 1 times [2018-11-28 13:06:49,946 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:49,946 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:49,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:49,947 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:06:49,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:49,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:50,007 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:50,007 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:06:50,007 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/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 [2018-11-28 13:06:50,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:06:50,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:50,026 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:06:50,029 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:50,054 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:06:50,054 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-11-28 13:06:50,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 13:06:50,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 13:06:50,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-28 13:06:50,055 INFO L87 Difference]: Start difference. First operand 2567 states and 3753 transitions. Second operand 5 states. [2018-11-28 13:06:50,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:06:50,170 INFO L93 Difference]: Finished difference Result 4186 states and 6159 transitions. [2018-11-28 13:06:50,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 13:06:50,170 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2018-11-28 13:06:50,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:06:50,181 INFO L225 Difference]: With dead ends: 4186 [2018-11-28 13:06:50,181 INFO L226 Difference]: Without dead ends: 4185 [2018-11-28 13:06:50,184 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 [2018-11-28 13:06:50,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4185 states. [2018-11-28 13:06:50,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4185 to 3075. [2018-11-28 13:06:50,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3075 states. [2018-11-28 13:06:50,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3075 states to 3075 states and 4487 transitions. [2018-11-28 13:06:50,292 INFO L78 Accepts]: Start accepts. Automaton has 3075 states and 4487 transitions. Word has length 35 [2018-11-28 13:06:50,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:06:50,293 INFO L480 AbstractCegarLoop]: Abstraction has 3075 states and 4487 transitions. [2018-11-28 13:06:50,293 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 13:06:50,293 INFO L276 IsEmpty]: Start isEmpty. Operand 3075 states and 4487 transitions. [2018-11-28 13:06:50,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-28 13:06:50,294 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:06:50,294 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:50,294 INFO L423 AbstractCegarLoop]: === Iteration 17 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:06:50,296 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:50,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1468116811, now seen corresponding path program 2 times [2018-11-28 13:06:50,296 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:50,297 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:50,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:50,297 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:06:50,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:50,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:50,335 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:50,335 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:06:50,335 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/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 [2018-11-28 13:06:50,346 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 13:06:50,370 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 13:06:50,371 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:06:50,372 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:06:50,377 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:50,402 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:06:50,402 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2018-11-28 13:06:50,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 13:06:50,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 13:06:50,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-28 13:06:50,403 INFO L87 Difference]: Start difference. First operand 3075 states and 4487 transitions. Second operand 6 states. [2018-11-28 13:06:50,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:06:50,535 INFO L93 Difference]: Finished difference Result 4731 states and 6951 transitions. [2018-11-28 13:06:50,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 13:06:50,536 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2018-11-28 13:06:50,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:06:50,548 INFO L225 Difference]: With dead ends: 4731 [2018-11-28 13:06:50,548 INFO L226 Difference]: Without dead ends: 4730 [2018-11-28 13:06:50,551 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 [2018-11-28 13:06:50,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4730 states. [2018-11-28 13:06:50,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4730 to 3463. [2018-11-28 13:06:50,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3463 states. [2018-11-28 13:06:50,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3463 states to 3463 states and 5051 transitions. [2018-11-28 13:06:50,664 INFO L78 Accepts]: Start accepts. Automaton has 3463 states and 5051 transitions. Word has length 37 [2018-11-28 13:06:50,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:06:50,665 INFO L480 AbstractCegarLoop]: Abstraction has 3463 states and 5051 transitions. [2018-11-28 13:06:50,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 13:06:50,665 INFO L276 IsEmpty]: Start isEmpty. Operand 3463 states and 5051 transitions. [2018-11-28 13:06:50,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-28 13:06:50,666 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:06:50,666 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:50,667 INFO L423 AbstractCegarLoop]: === Iteration 18 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:06:50,667 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:50,667 INFO L82 PathProgramCache]: Analyzing trace with hash -1042968950, now seen corresponding path program 4 times [2018-11-28 13:06:50,667 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:50,667 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:50,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:50,668 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:06:50,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:50,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:50,735 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:50,735 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:06:50,735 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/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 [2018-11-28 13:06:50,750 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-28 13:06:50,765 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-11-28 13:06:50,765 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:06:50,767 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:06:50,779 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:50,797 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:06:50,797 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-11-28 13:06:50,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 13:06:50,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 13:06:50,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-11-28 13:06:50,798 INFO L87 Difference]: Start difference. First operand 3463 states and 5051 transitions. Second operand 7 states. [2018-11-28 13:06:50,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:06:50,951 INFO L93 Difference]: Finished difference Result 5330 states and 7888 transitions. [2018-11-28 13:06:50,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 13:06:50,952 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2018-11-28 13:06:50,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:06:50,965 INFO L225 Difference]: With dead ends: 5330 [2018-11-28 13:06:50,965 INFO L226 Difference]: Without dead ends: 5328 [2018-11-28 13:06:50,967 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 [2018-11-28 13:06:50,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5328 states. [2018-11-28 13:06:51,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5328 to 4381. [2018-11-28 13:06:51,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4381 states. [2018-11-28 13:06:51,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4381 states to 4381 states and 6357 transitions. [2018-11-28 13:06:51,059 INFO L78 Accepts]: Start accepts. Automaton has 4381 states and 6357 transitions. Word has length 39 [2018-11-28 13:06:51,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:06:51,059 INFO L480 AbstractCegarLoop]: Abstraction has 4381 states and 6357 transitions. [2018-11-28 13:06:51,060 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 13:06:51,060 INFO L276 IsEmpty]: Start isEmpty. Operand 4381 states and 6357 transitions. [2018-11-28 13:06:51,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-28 13:06:51,061 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:06:51,061 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:51,061 INFO L423 AbstractCegarLoop]: === Iteration 19 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:06:51,061 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:51,061 INFO L82 PathProgramCache]: Analyzing trace with hash 535132776, now seen corresponding path program 3 times [2018-11-28 13:06:51,061 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:51,062 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:51,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:51,062 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:06:51,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:51,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:51,094 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:51,094 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:06:51,094 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/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 [2018-11-28 13:06:51,117 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-28 13:06:51,134 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-11-28 13:06:51,134 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:06:51,136 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:06:51,143 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:51,169 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:06:51,169 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2018-11-28 13:06:51,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 13:06:51,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 13:06:51,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-28 13:06:51,170 INFO L87 Difference]: Start difference. First operand 4381 states and 6357 transitions. Second operand 6 states. [2018-11-28 13:06:51,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:06:51,320 INFO L93 Difference]: Finished difference Result 7073 states and 10429 transitions. [2018-11-28 13:06:51,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 13:06:51,321 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2018-11-28 13:06:51,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:06:51,333 INFO L225 Difference]: With dead ends: 7073 [2018-11-28 13:06:51,333 INFO L226 Difference]: Without dead ends: 7071 [2018-11-28 13:06:51,336 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 [2018-11-28 13:06:51,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7071 states. [2018-11-28 13:06:51,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7071 to 5733. [2018-11-28 13:06:51,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5733 states. [2018-11-28 13:06:51,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5733 states to 5733 states and 8269 transitions. [2018-11-28 13:06:51,488 INFO L78 Accepts]: Start accepts. Automaton has 5733 states and 8269 transitions. Word has length 40 [2018-11-28 13:06:51,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:06:51,488 INFO L480 AbstractCegarLoop]: Abstraction has 5733 states and 8269 transitions. [2018-11-28 13:06:51,489 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 13:06:51,489 INFO L276 IsEmpty]: Start isEmpty. Operand 5733 states and 8269 transitions. [2018-11-28 13:06:51,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-28 13:06:51,490 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:06:51,490 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:51,490 INFO L423 AbstractCegarLoop]: === Iteration 20 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:06:51,491 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:51,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1865791691, now seen corresponding path program 3 times [2018-11-28 13:06:51,491 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:51,491 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:51,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:51,492 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:06:51,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:51,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:51,555 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:51,555 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:06:51,556 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/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 [2018-11-28 13:06:51,569 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-28 13:06:51,577 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2018-11-28 13:06:51,577 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:06:51,578 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:06:51,583 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:51,599 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:06:51,599 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-11-28 13:06:51,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 13:06:51,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 13:06:51,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-11-28 13:06:51,600 INFO L87 Difference]: Start difference. First operand 5733 states and 8269 transitions. Second operand 7 states. [2018-11-28 13:06:51,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:06:51,735 INFO L93 Difference]: Finished difference Result 8442 states and 12279 transitions. [2018-11-28 13:06:51,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 13:06:51,735 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2018-11-28 13:06:51,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:06:51,744 INFO L225 Difference]: With dead ends: 8442 [2018-11-28 13:06:51,744 INFO L226 Difference]: Without dead ends: 8441 [2018-11-28 13:06:51,747 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 [2018-11-28 13:06:51,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8441 states. [2018-11-28 13:06:51,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8441 to 6241. [2018-11-28 13:06:51,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6241 states. [2018-11-28 13:06:51,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6241 states to 6241 states and 9003 transitions. [2018-11-28 13:06:51,849 INFO L78 Accepts]: Start accepts. Automaton has 6241 states and 9003 transitions. Word has length 45 [2018-11-28 13:06:51,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:06:51,850 INFO L480 AbstractCegarLoop]: Abstraction has 6241 states and 9003 transitions. [2018-11-28 13:06:51,850 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 13:06:51,850 INFO L276 IsEmpty]: Start isEmpty. Operand 6241 states and 9003 transitions. [2018-11-28 13:06:51,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-28 13:06:51,851 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:06:51,851 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:51,852 INFO L423 AbstractCegarLoop]: === Iteration 21 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:06:51,852 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:51,852 INFO L82 PathProgramCache]: Analyzing trace with hash 702806639, now seen corresponding path program 2 times [2018-11-28 13:06:51,852 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:51,852 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:51,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:51,853 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:06:51,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:51,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:51,891 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:51,891 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:06:51,891 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/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 [2018-11-28 13:06:51,898 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 13:06:51,914 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 13:06:51,914 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:06:51,916 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:06:51,920 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:51,937 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:06:51,938 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2018-11-28 13:06:51,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 13:06:51,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 13:06:51,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-28 13:06:51,938 INFO L87 Difference]: Start difference. First operand 6241 states and 9003 transitions. Second operand 6 states. [2018-11-28 13:06:52,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:06:52,077 INFO L93 Difference]: Finished difference Result 9588 states and 13947 transitions. [2018-11-28 13:06:52,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 13:06:52,077 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2018-11-28 13:06:52,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:06:52,087 INFO L225 Difference]: With dead ends: 9588 [2018-11-28 13:06:52,087 INFO L226 Difference]: Without dead ends: 9587 [2018-11-28 13:06:52,091 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 [2018-11-28 13:06:52,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9587 states. [2018-11-28 13:06:52,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9587 to 7029. [2018-11-28 13:06:52,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7029 states. [2018-11-28 13:06:52,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7029 states to 7029 states and 10135 transitions. [2018-11-28 13:06:52,230 INFO L78 Accepts]: Start accepts. Automaton has 7029 states and 10135 transitions. Word has length 45 [2018-11-28 13:06:52,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:06:52,231 INFO L480 AbstractCegarLoop]: Abstraction has 7029 states and 10135 transitions. [2018-11-28 13:06:52,231 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 13:06:52,231 INFO L276 IsEmpty]: Start isEmpty. Operand 7029 states and 10135 transitions. [2018-11-28 13:06:52,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-28 13:06:52,232 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:06:52,232 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:52,232 INFO L423 AbstractCegarLoop]: === Iteration 22 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:06:52,232 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:52,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1845802966, now seen corresponding path program 5 times [2018-11-28 13:06:52,233 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:52,233 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:52,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:52,233 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:06:52,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:52,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:52,281 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:52,281 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:06:52,281 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/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 [2018-11-28 13:06:52,291 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-11-28 13:06:52,302 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2018-11-28 13:06:52,302 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:06:52,304 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:06:52,307 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:52,322 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:06:52,322 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-11-28 13:06:52,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 13:06:52,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 13:06:52,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-11-28 13:06:52,323 INFO L87 Difference]: Start difference. First operand 7029 states and 10135 transitions. Second operand 8 states. [2018-11-28 13:06:52,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:06:52,455 INFO L93 Difference]: Finished difference Result 10385 states and 15210 transitions. [2018-11-28 13:06:52,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 13:06:52,456 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 46 [2018-11-28 13:06:52,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:06:52,463 INFO L225 Difference]: With dead ends: 10385 [2018-11-28 13:06:52,464 INFO L226 Difference]: Without dead ends: 10383 [2018-11-28 13:06:52,467 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 [2018-11-28 13:06:52,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10383 states. [2018-11-28 13:06:52,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10383 to 8669. [2018-11-28 13:06:52,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8669 states. [2018-11-28 13:06:52,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8669 states to 8669 states and 12442 transitions. [2018-11-28 13:06:52,639 INFO L78 Accepts]: Start accepts. Automaton has 8669 states and 12442 transitions. Word has length 46 [2018-11-28 13:06:52,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:06:52,639 INFO L480 AbstractCegarLoop]: Abstraction has 8669 states and 12442 transitions. [2018-11-28 13:06:52,639 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 13:06:52,639 INFO L276 IsEmpty]: Start isEmpty. Operand 8669 states and 12442 transitions. [2018-11-28 13:06:52,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-28 13:06:52,640 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:06:52,640 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:52,641 INFO L423 AbstractCegarLoop]: === Iteration 23 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:06:52,641 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:52,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1310627277, now seen corresponding path program 4 times [2018-11-28 13:06:52,641 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:52,641 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:52,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:52,642 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:06:52,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:52,690 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:52,690 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:06:52,690 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/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 [2018-11-28 13:06:52,697 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-28 13:06:52,704 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-11-28 13:06:52,704 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:06:52,705 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:06:52,709 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:52,723 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:06:52,723 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-11-28 13:06:52,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 13:06:52,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 13:06:52,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-11-28 13:06:52,724 INFO L87 Difference]: Start difference. First operand 8669 states and 12442 transitions. Second operand 7 states. [2018-11-28 13:06:52,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:06:52,875 INFO L93 Difference]: Finished difference Result 13316 states and 19433 transitions. [2018-11-28 13:06:52,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 13:06:52,876 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 49 [2018-11-28 13:06:52,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:06:52,885 INFO L225 Difference]: With dead ends: 13316 [2018-11-28 13:06:52,885 INFO L226 Difference]: Without dead ends: 13314 [2018-11-28 13:06:52,890 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 [2018-11-28 13:06:52,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13314 states. [2018-11-28 13:06:53,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13314 to 10971. [2018-11-28 13:06:53,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10971 states. [2018-11-28 13:06:53,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10971 states to 10971 states and 15661 transitions. [2018-11-28 13:06:53,095 INFO L78 Accepts]: Start accepts. Automaton has 10971 states and 15661 transitions. Word has length 49 [2018-11-28 13:06:53,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:06:53,095 INFO L480 AbstractCegarLoop]: Abstraction has 10971 states and 15661 transitions. [2018-11-28 13:06:53,095 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 13:06:53,095 INFO L276 IsEmpty]: Start isEmpty. Operand 10971 states and 15661 transitions. [2018-11-28 13:06:53,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-28 13:06:53,097 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:06:53,097 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:53,097 INFO L423 AbstractCegarLoop]: === Iteration 24 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:06:53,097 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:53,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1711194378, now seen corresponding path program 6 times [2018-11-28 13:06:53,097 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:53,097 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:53,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:53,098 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:06:53,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:53,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:53,157 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:53,157 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:06:53,157 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/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 [2018-11-28 13:06:53,163 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-11-28 13:06:53,174 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2018-11-28 13:06:53,174 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:06:53,175 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:06:53,178 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:53,193 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:06:53,193 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2018-11-28 13:06:53,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 13:06:53,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 13:06:53,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-11-28 13:06:53,194 INFO L87 Difference]: Start difference. First operand 10971 states and 15661 transitions. Second operand 9 states. [2018-11-28 13:06:53,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:06:53,361 INFO L93 Difference]: Finished difference Result 15626 states and 22669 transitions. [2018-11-28 13:06:53,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 13:06:53,362 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 53 [2018-11-28 13:06:53,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:06:53,377 INFO L225 Difference]: With dead ends: 15626 [2018-11-28 13:06:53,377 INFO L226 Difference]: Without dead ends: 15624 [2018-11-28 13:06:53,382 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 [2018-11-28 13:06:53,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15624 states. [2018-11-28 13:06:53,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15624 to 13095. [2018-11-28 13:06:53,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13095 states. [2018-11-28 13:06:53,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13095 states to 13095 states and 18613 transitions. [2018-11-28 13:06:53,586 INFO L78 Accepts]: Start accepts. Automaton has 13095 states and 18613 transitions. Word has length 53 [2018-11-28 13:06:53,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:06:53,586 INFO L480 AbstractCegarLoop]: Abstraction has 13095 states and 18613 transitions. [2018-11-28 13:06:53,586 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 13:06:53,586 INFO L276 IsEmpty]: Start isEmpty. Operand 13095 states and 18613 transitions. [2018-11-28 13:06:53,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-28 13:06:53,588 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:06:53,588 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:53,588 INFO L423 AbstractCegarLoop]: === Iteration 25 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:06:53,588 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:53,588 INFO L82 PathProgramCache]: Analyzing trace with hash -434547425, now seen corresponding path program 4 times [2018-11-28 13:06:53,589 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:53,589 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:53,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:53,589 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:06:53,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:53,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:53,651 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:53,651 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:06:53,651 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/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 [2018-11-28 13:06:53,661 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-28 13:06:53,669 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-11-28 13:06:53,669 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:06:53,670 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:06:53,676 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:53,694 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:06:53,694 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-11-28 13:06:53,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 13:06:53,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 13:06:53,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-11-28 13:06:53,695 INFO L87 Difference]: Start difference. First operand 13095 states and 18613 transitions. Second operand 8 states. [2018-11-28 13:06:53,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:06:53,993 INFO L93 Difference]: Finished difference Result 19894 states and 28525 transitions. [2018-11-28 13:06:53,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 13:06:53,994 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2018-11-28 13:06:53,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:06:54,008 INFO L225 Difference]: With dead ends: 19894 [2018-11-28 13:06:54,008 INFO L226 Difference]: Without dead ends: 19893 [2018-11-28 13:06:54,012 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 [2018-11-28 13:06:54,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19893 states. [2018-11-28 13:06:54,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19893 to 14133. [2018-11-28 13:06:54,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14133 states. [2018-11-28 13:06:54,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14133 states to 14133 states and 20101 transitions. [2018-11-28 13:06:54,254 INFO L78 Accepts]: Start accepts. Automaton has 14133 states and 20101 transitions. Word has length 53 [2018-11-28 13:06:54,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:06:54,254 INFO L480 AbstractCegarLoop]: Abstraction has 14133 states and 20101 transitions. [2018-11-28 13:06:54,254 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 13:06:54,254 INFO L276 IsEmpty]: Start isEmpty. Operand 14133 states and 20101 transitions. [2018-11-28 13:06:54,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-11-28 13:06:54,256 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:06:54,256 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:54,256 INFO L423 AbstractCegarLoop]: === Iteration 26 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:06:54,256 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:54,256 INFO L82 PathProgramCache]: Analyzing trace with hash 941207746, now seen corresponding path program 3 times [2018-11-28 13:06:54,256 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:54,257 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:54,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:54,257 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:06:54,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:54,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:54,304 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:54,304 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:06:54,304 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/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 [2018-11-28 13:06:54,317 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-28 13:06:54,330 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2018-11-28 13:06:54,330 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:06:54,332 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:06:54,338 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:54,362 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:06:54,363 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-11-28 13:06:54,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 13:06:54,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 13:06:54,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-11-28 13:06:54,363 INFO L87 Difference]: Start difference. First operand 14133 states and 20101 transitions. Second operand 7 states. [2018-11-28 13:06:54,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:06:54,659 INFO L93 Difference]: Finished difference Result 20778 states and 29841 transitions. [2018-11-28 13:06:54,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 13:06:54,660 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 55 [2018-11-28 13:06:54,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:06:54,674 INFO L225 Difference]: With dead ends: 20778 [2018-11-28 13:06:54,674 INFO L226 Difference]: Without dead ends: 20777 [2018-11-28 13:06:54,679 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 [2018-11-28 13:06:54,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20777 states. [2018-11-28 13:06:54,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20777 to 15385. [2018-11-28 13:06:54,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15385 states. [2018-11-28 13:06:54,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15385 states to 15385 states and 21885 transitions. [2018-11-28 13:06:54,979 INFO L78 Accepts]: Start accepts. Automaton has 15385 states and 21885 transitions. Word has length 55 [2018-11-28 13:06:54,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:06:54,979 INFO L480 AbstractCegarLoop]: Abstraction has 15385 states and 21885 transitions. [2018-11-28 13:06:54,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 13:06:54,979 INFO L276 IsEmpty]: Start isEmpty. Operand 15385 states and 21885 transitions. [2018-11-28 13:06:54,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-28 13:06:54,981 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:06:54,981 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:54,981 INFO L423 AbstractCegarLoop]: === Iteration 27 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:06:54,982 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:54,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1897860808, now seen corresponding path program 5 times [2018-11-28 13:06:54,982 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:54,982 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:54,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:54,982 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:06:54,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:54,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:55,022 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:55,022 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:06:55,022 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/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 [2018-11-28 13:06:55,028 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-11-28 13:06:55,037 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2018-11-28 13:06:55,037 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:06:55,038 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:06:55,041 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:55,056 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:06:55,056 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-11-28 13:06:55,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 13:06:55,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 13:06:55,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-11-28 13:06:55,056 INFO L87 Difference]: Start difference. First operand 15385 states and 21885 transitions. Second operand 8 states. [2018-11-28 13:06:55,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:06:55,325 INFO L93 Difference]: Finished difference Result 22701 states and 32845 transitions. [2018-11-28 13:06:55,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 13:06:55,325 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2018-11-28 13:06:55,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:06:55,341 INFO L225 Difference]: With dead ends: 22701 [2018-11-28 13:06:55,341 INFO L226 Difference]: Without dead ends: 22699 [2018-11-28 13:06:55,344 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 [2018-11-28 13:06:55,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22699 states. [2018-11-28 13:06:55,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22699 to 18977. [2018-11-28 13:06:55,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18977 states. [2018-11-28 13:06:55,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18977 states to 18977 states and 26868 transitions. [2018-11-28 13:06:55,656 INFO L78 Accepts]: Start accepts. Automaton has 18977 states and 26868 transitions. Word has length 58 [2018-11-28 13:06:55,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:06:55,656 INFO L480 AbstractCegarLoop]: Abstraction has 18977 states and 26868 transitions. [2018-11-28 13:06:55,656 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 13:06:55,656 INFO L276 IsEmpty]: Start isEmpty. Operand 18977 states and 26868 transitions. [2018-11-28 13:06:55,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-11-28 13:06:55,657 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:06:55,657 INFO L402 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:55,657 INFO L423 AbstractCegarLoop]: === Iteration 28 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:06:55,657 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:55,657 INFO L82 PathProgramCache]: Analyzing trace with hash 1695921494, now seen corresponding path program 7 times [2018-11-28 13:06:55,657 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:55,657 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:55,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:55,658 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:06:55,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:55,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:55,722 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:55,722 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:06:55,722 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/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 [2018-11-28 13:06:55,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:06:55,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:55,740 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:06:55,744 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:55,759 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:06:55,759 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2018-11-28 13:06:55,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 13:06:55,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 13:06:55,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-11-28 13:06:55,760 INFO L87 Difference]: Start difference. First operand 18977 states and 26868 transitions. Second operand 10 states. [2018-11-28 13:06:56,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:06:56,135 INFO L93 Difference]: Finished difference Result 26255 states and 37782 transitions. [2018-11-28 13:06:56,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 13:06:56,136 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 60 [2018-11-28 13:06:56,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:06:56,157 INFO L225 Difference]: With dead ends: 26255 [2018-11-28 13:06:56,157 INFO L226 Difference]: Without dead ends: 26253 [2018-11-28 13:06:56,162 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 [2018-11-28 13:06:56,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26253 states. [2018-11-28 13:06:56,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26253 to 22315. [2018-11-28 13:06:56,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22315 states. [2018-11-28 13:06:56,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22315 states to 22315 states and 31477 transitions. [2018-11-28 13:06:56,596 INFO L78 Accepts]: Start accepts. Automaton has 22315 states and 31477 transitions. Word has length 60 [2018-11-28 13:06:56,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:06:56,596 INFO L480 AbstractCegarLoop]: Abstraction has 22315 states and 31477 transitions. [2018-11-28 13:06:56,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 13:06:56,596 INFO L276 IsEmpty]: Start isEmpty. Operand 22315 states and 31477 transitions. [2018-11-28 13:06:56,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-11-28 13:06:56,597 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:06:56,597 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:56,598 INFO L423 AbstractCegarLoop]: === Iteration 29 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:06:56,598 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:56,598 INFO L82 PathProgramCache]: Analyzing trace with hash 2090391817, now seen corresponding path program 5 times [2018-11-28 13:06:56,598 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:56,598 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:56,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:56,599 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:06:56,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:56,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:56,666 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:56,666 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:06:56,667 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/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 [2018-11-28 13:06:56,677 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-11-28 13:06:56,694 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2018-11-28 13:06:56,694 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:06:56,695 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:06:56,702 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:56,726 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:06:56,727 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2018-11-28 13:06:56,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 13:06:56,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 13:06:56,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-11-28 13:06:56,727 INFO L87 Difference]: Start difference. First operand 22315 states and 31477 transitions. Second operand 9 states. [2018-11-28 13:06:57,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:06:57,184 INFO L93 Difference]: Finished difference Result 32959 states and 46936 transitions. [2018-11-28 13:06:57,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 13:06:57,184 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 61 [2018-11-28 13:06:57,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:06:57,212 INFO L225 Difference]: With dead ends: 32959 [2018-11-28 13:06:57,212 INFO L226 Difference]: Without dead ends: 32958 [2018-11-28 13:06:57,218 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 [2018-11-28 13:06:57,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32958 states. [2018-11-28 13:06:57,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32958 to 23709. [2018-11-28 13:06:57,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23709 states. [2018-11-28 13:06:57,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23709 states to 23709 states and 33466 transitions. [2018-11-28 13:06:57,757 INFO L78 Accepts]: Start accepts. Automaton has 23709 states and 33466 transitions. Word has length 61 [2018-11-28 13:06:57,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:06:57,757 INFO L480 AbstractCegarLoop]: Abstraction has 23709 states and 33466 transitions. [2018-11-28 13:06:57,757 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 13:06:57,757 INFO L276 IsEmpty]: Start isEmpty. Operand 23709 states and 33466 transitions. [2018-11-28 13:06:57,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-11-28 13:06:57,759 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:06:57,759 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:57,759 INFO L423 AbstractCegarLoop]: === Iteration 30 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:06:57,759 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:57,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1521886379, now seen corresponding path program 4 times [2018-11-28 13:06:57,759 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:57,759 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:57,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:57,760 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:06:57,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:57,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:57,822 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:57,823 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:06:57,823 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/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 [2018-11-28 13:06:57,833 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-28 13:06:57,846 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-11-28 13:06:57,846 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:06:57,847 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:06:57,855 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:57,879 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:06:57,879 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-11-28 13:06:57,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 13:06:57,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 13:06:57,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-11-28 13:06:57,880 INFO L87 Difference]: Start difference. First operand 23709 states and 33466 transitions. Second operand 8 states. [2018-11-28 13:06:58,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:06:58,369 INFO L93 Difference]: Finished difference Result 33673 states and 48022 transitions. [2018-11-28 13:06:58,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 13:06:58,369 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2018-11-28 13:06:58,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:06:58,394 INFO L225 Difference]: With dead ends: 33673 [2018-11-28 13:06:58,394 INFO L226 Difference]: Without dead ends: 33672 [2018-11-28 13:06:58,400 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 [2018-11-28 13:06:58,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33672 states. [2018-11-28 13:06:58,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33672 to 25273. [2018-11-28 13:06:58,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25273 states. [2018-11-28 13:06:58,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25273 states to 25273 states and 35688 transitions. [2018-11-28 13:06:58,860 INFO L78 Accepts]: Start accepts. Automaton has 25273 states and 35688 transitions. Word has length 65 [2018-11-28 13:06:58,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:06:58,860 INFO L480 AbstractCegarLoop]: Abstraction has 25273 states and 35688 transitions. [2018-11-28 13:06:58,860 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 13:06:58,860 INFO L276 IsEmpty]: Start isEmpty. Operand 25273 states and 35688 transitions. [2018-11-28 13:06:58,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-11-28 13:06:58,862 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:06:58,862 INFO L402 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:58,862 INFO L423 AbstractCegarLoop]: === Iteration 31 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:06:58,862 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:58,862 INFO L82 PathProgramCache]: Analyzing trace with hash -690121846, now seen corresponding path program 8 times [2018-11-28 13:06:58,862 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:58,862 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:58,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:58,863 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:06:58,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:58,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:58,936 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:58,936 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:06:58,936 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/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 [2018-11-28 13:06:58,948 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 13:06:58,959 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 13:06:58,959 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:06:58,960 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:06:58,965 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:06:58,980 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:06:58,980 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2018-11-28 13:06:58,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-28 13:06:58,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-28 13:06:58,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-11-28 13:06:58,981 INFO L87 Difference]: Start difference. First operand 25273 states and 35688 transitions. Second operand 11 states. [2018-11-28 13:06:59,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:06:59,615 INFO L93 Difference]: Finished difference Result 34134 states and 48972 transitions. [2018-11-28 13:06:59,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 13:06:59,615 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 67 [2018-11-28 13:06:59,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:06:59,640 INFO L225 Difference]: With dead ends: 34134 [2018-11-28 13:06:59,640 INFO L226 Difference]: Without dead ends: 34132 [2018-11-28 13:06:59,645 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 [2018-11-28 13:06:59,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34132 states. [2018-11-28 13:07:00,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34132 to 29349. [2018-11-28 13:07:00,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29349 states. [2018-11-28 13:07:00,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29349 states to 29349 states and 41310 transitions. [2018-11-28 13:07:00,169 INFO L78 Accepts]: Start accepts. Automaton has 29349 states and 41310 transitions. Word has length 67 [2018-11-28 13:07:00,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:07:00,170 INFO L480 AbstractCegarLoop]: Abstraction has 29349 states and 41310 transitions. [2018-11-28 13:07:00,170 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-28 13:07:00,170 INFO L276 IsEmpty]: Start isEmpty. Operand 29349 states and 41310 transitions. [2018-11-28 13:07:00,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-11-28 13:07:00,172 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:07:00,172 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1] [2018-11-28 13:07:00,172 INFO L423 AbstractCegarLoop]: === Iteration 32 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:07:00,172 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:07:00,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1044856365, now seen corresponding path program 6 times [2018-11-28 13:07:00,173 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:07:00,173 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:07:00,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:07:00,173 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:07:00,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:07:00,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:07:00,224 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:07:00,224 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:07:00,224 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/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 [2018-11-28 13:07:00,232 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-11-28 13:07:00,244 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2018-11-28 13:07:00,245 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:07:00,246 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:07:00,252 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:07:00,267 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:07:00,267 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2018-11-28 13:07:00,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 13:07:00,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 13:07:00,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-11-28 13:07:00,268 INFO L87 Difference]: Start difference. First operand 29349 states and 41310 transitions. Second operand 9 states. [2018-11-28 13:07:00,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:07:00,736 INFO L93 Difference]: Finished difference Result 41884 states and 59975 transitions. [2018-11-28 13:07:00,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 13:07:00,736 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2018-11-28 13:07:00,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:07:00,768 INFO L225 Difference]: With dead ends: 41884 [2018-11-28 13:07:00,768 INFO L226 Difference]: Without dead ends: 41882 [2018-11-28 13:07:00,776 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 [2018-11-28 13:07:00,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41882 states. [2018-11-28 13:07:01,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41882 to 35469. [2018-11-28 13:07:01,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35469 states. [2018-11-28 13:07:01,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35469 states to 35469 states and 49722 transitions. [2018-11-28 13:07:01,497 INFO L78 Accepts]: Start accepts. Automaton has 35469 states and 49722 transitions. Word has length 67 [2018-11-28 13:07:01,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:07:01,498 INFO L480 AbstractCegarLoop]: Abstraction has 35469 states and 49722 transitions. [2018-11-28 13:07:01,498 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 13:07:01,498 INFO L276 IsEmpty]: Start isEmpty. Operand 35469 states and 49722 transitions. [2018-11-28 13:07:01,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-11-28 13:07:01,500 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:07:01,500 INFO L402 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1] [2018-11-28 13:07:01,500 INFO L423 AbstractCegarLoop]: === Iteration 33 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:07:01,500 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:07:01,500 INFO L82 PathProgramCache]: Analyzing trace with hash -1351429389, now seen corresponding path program 6 times [2018-11-28 13:07:01,500 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:07:01,500 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:07:01,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:07:01,501 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:07:01,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:07:01,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:07:01,556 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:07:01,556 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:07:01,556 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/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 [2018-11-28 13:07:01,571 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-11-28 13:07:01,584 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2018-11-28 13:07:01,584 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:07:01,585 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:07:01,594 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:07:01,615 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:07:01,616 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2018-11-28 13:07:01,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 13:07:01,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 13:07:01,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-11-28 13:07:01,616 INFO L87 Difference]: Start difference. First operand 35469 states and 49722 transitions. Second operand 10 states. [2018-11-28 13:07:02,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:07:02,221 INFO L93 Difference]: Finished difference Result 51133 states and 72401 transitions. [2018-11-28 13:07:02,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 13:07:02,221 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 69 [2018-11-28 13:07:02,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:07:02,264 INFO L225 Difference]: With dead ends: 51133 [2018-11-28 13:07:02,264 INFO L226 Difference]: Without dead ends: 51132 [2018-11-28 13:07:02,273 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 [2018-11-28 13:07:02,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51132 states. [2018-11-28 13:07:03,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51132 to 37265. [2018-11-28 13:07:03,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37265 states. [2018-11-28 13:07:03,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37265 states to 37265 states and 52275 transitions. [2018-11-28 13:07:03,152 INFO L78 Accepts]: Start accepts. Automaton has 37265 states and 52275 transitions. Word has length 69 [2018-11-28 13:07:03,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:07:03,153 INFO L480 AbstractCegarLoop]: Abstraction has 37265 states and 52275 transitions. [2018-11-28 13:07:03,153 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 13:07:03,153 INFO L276 IsEmpty]: Start isEmpty. Operand 37265 states and 52275 transitions. [2018-11-28 13:07:03,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-11-28 13:07:03,156 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:07:03,156 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1] [2018-11-28 13:07:03,156 INFO L423 AbstractCegarLoop]: === Iteration 34 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:07:03,156 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:07:03,156 INFO L82 PathProgramCache]: Analyzing trace with hash -2049109290, now seen corresponding path program 9 times [2018-11-28 13:07:03,156 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:07:03,156 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:07:03,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:07:03,157 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:07:03,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:07:03,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:07:03,236 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:07:03,236 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:07:03,237 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/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 [2018-11-28 13:07:03,243 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-28 13:07:03,256 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2018-11-28 13:07:03,256 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:07:03,257 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:07:03,263 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:07:03,277 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:07:03,277 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2018-11-28 13:07:03,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-28 13:07:03,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-28 13:07:03,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-11-28 13:07:03,278 INFO L87 Difference]: Start difference. First operand 37265 states and 52275 transitions. Second operand 12 states. [2018-11-28 13:07:03,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:07:03,854 INFO L93 Difference]: Finished difference Result 49303 states and 70258 transitions. [2018-11-28 13:07:03,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 13:07:03,855 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 74 [2018-11-28 13:07:03,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:07:03,895 INFO L225 Difference]: With dead ends: 49303 [2018-11-28 13:07:03,896 INFO L226 Difference]: Without dead ends: 49301 [2018-11-28 13:07:03,903 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 [2018-11-28 13:07:03,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49301 states. [2018-11-28 13:07:04,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49301 to 42817. [2018-11-28 13:07:04,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42817 states. [2018-11-28 13:07:04,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42817 states to 42817 states and 59893 transitions. [2018-11-28 13:07:04,676 INFO L78 Accepts]: Start accepts. Automaton has 42817 states and 59893 transitions. Word has length 74 [2018-11-28 13:07:04,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:07:04,677 INFO L480 AbstractCegarLoop]: Abstraction has 42817 states and 59893 transitions. [2018-11-28 13:07:04,677 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-28 13:07:04,677 INFO L276 IsEmpty]: Start isEmpty. Operand 42817 states and 59893 transitions. [2018-11-28 13:07:04,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-11-28 13:07:04,679 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:07:04,679 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1] [2018-11-28 13:07:04,680 INFO L423 AbstractCegarLoop]: === Iteration 35 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:07:04,680 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:07:04,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1528834600, now seen corresponding path program 5 times [2018-11-28 13:07:04,680 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:07:04,680 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:07:04,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:07:04,680 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:07:04,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:07:04,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:07:04,737 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:07:04,737 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:07:04,737 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/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 [2018-11-28 13:07:04,744 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-11-28 13:07:04,756 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2018-11-28 13:07:04,756 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:07:04,757 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:07:04,765 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:07:04,779 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:07:04,780 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2018-11-28 13:07:04,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 13:07:04,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 13:07:04,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-11-28 13:07:04,780 INFO L87 Difference]: Start difference. First operand 42817 states and 59893 transitions. Second operand 9 states. [2018-11-28 13:07:05,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:07:05,484 INFO L93 Difference]: Finished difference Result 59106 states and 83567 transitions. [2018-11-28 13:07:05,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 13:07:05,485 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 75 [2018-11-28 13:07:05,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:07:05,534 INFO L225 Difference]: With dead ends: 59106 [2018-11-28 13:07:05,534 INFO L226 Difference]: Without dead ends: 59105 [2018-11-28 13:07:05,544 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 [2018-11-28 13:07:05,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59105 states. [2018-11-28 13:07:06,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59105 to 45009. [2018-11-28 13:07:06,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45009 states. [2018-11-28 13:07:06,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45009 states to 45009 states and 62991 transitions. [2018-11-28 13:07:06,391 INFO L78 Accepts]: Start accepts. Automaton has 45009 states and 62991 transitions. Word has length 75 [2018-11-28 13:07:06,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:07:06,391 INFO L480 AbstractCegarLoop]: Abstraction has 45009 states and 62991 transitions. [2018-11-28 13:07:06,391 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 13:07:06,391 INFO L276 IsEmpty]: Start isEmpty. Operand 45009 states and 62991 transitions. [2018-11-28 13:07:06,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-11-28 13:07:06,393 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:07:06,394 INFO L402 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 1, 1, 1, 1, 1, 1] [2018-11-28 13:07:06,394 INFO L423 AbstractCegarLoop]: === Iteration 36 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:07:06,394 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:07:06,394 INFO L82 PathProgramCache]: Analyzing trace with hash -427799768, now seen corresponding path program 7 times [2018-11-28 13:07:06,394 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:07:06,394 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:07:06,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:07:06,395 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:07:06,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:07:06,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:07:06,459 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:07:06,459 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:07:06,459 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/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 [2018-11-28 13:07:06,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:07:06,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:07:06,479 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:07:06,484 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:07:06,506 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:07:06,506 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2018-11-28 13:07:06,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 13:07:06,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 13:07:06,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-11-28 13:07:06,507 INFO L87 Difference]: Start difference. First operand 45009 states and 62991 transitions. Second operand 10 states. [2018-11-28 13:07:07,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:07:07,295 INFO L93 Difference]: Finished difference Result 62469 states and 88924 transitions. [2018-11-28 13:07:07,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 13:07:07,295 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 76 [2018-11-28 13:07:07,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:07:07,354 INFO L225 Difference]: With dead ends: 62469 [2018-11-28 13:07:07,354 INFO L226 Difference]: Without dead ends: 62467 [2018-11-28 13:07:07,366 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 [2018-11-28 13:07:07,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62467 states. [2018-11-28 13:07:08,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62467 to 53493. [2018-11-28 13:07:08,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53493 states. [2018-11-28 13:07:08,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53493 states to 53493 states and 74602 transitions. [2018-11-28 13:07:08,472 INFO L78 Accepts]: Start accepts. Automaton has 53493 states and 74602 transitions. Word has length 76 [2018-11-28 13:07:08,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:07:08,472 INFO L480 AbstractCegarLoop]: Abstraction has 53493 states and 74602 transitions. [2018-11-28 13:07:08,473 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 13:07:08,473 INFO L276 IsEmpty]: Start isEmpty. Operand 53493 states and 74602 transitions. [2018-11-28 13:07:08,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-11-28 13:07:08,475 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:07:08,475 INFO L402 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1] [2018-11-28 13:07:08,476 INFO L423 AbstractCegarLoop]: === Iteration 37 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:07:08,476 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:07:08,476 INFO L82 PathProgramCache]: Analyzing trace with hash 265372381, now seen corresponding path program 7 times [2018-11-28 13:07:08,476 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:07:08,476 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:07:08,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:07:08,477 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:07:08,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:07:08,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:07:08,549 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:07:08,549 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:07:08,549 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/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 [2018-11-28 13:07:08,561 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:07:08,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:07:08,573 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:07:08,579 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:07:08,602 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:07:08,602 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2018-11-28 13:07:08,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-28 13:07:08,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-28 13:07:08,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-11-28 13:07:08,603 INFO L87 Difference]: Start difference. First operand 53493 states and 74602 transitions. Second operand 11 states. [2018-11-28 13:07:09,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:07:09,551 INFO L93 Difference]: Finished difference Result 75502 states and 106384 transitions. [2018-11-28 13:07:09,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 13:07:09,551 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 77 [2018-11-28 13:07:09,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:07:09,616 INFO L225 Difference]: With dead ends: 75502 [2018-11-28 13:07:09,616 INFO L226 Difference]: Without dead ends: 75501 [2018-11-28 13:07:09,629 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 [2018-11-28 13:07:09,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75501 states. [2018-11-28 13:07:10,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75501 to 55737. [2018-11-28 13:07:10,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55737 states. [2018-11-28 13:07:10,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55737 states to 55737 states and 77782 transitions. [2018-11-28 13:07:10,872 INFO L78 Accepts]: Start accepts. Automaton has 55737 states and 77782 transitions. Word has length 77 [2018-11-28 13:07:10,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:07:10,872 INFO L480 AbstractCegarLoop]: Abstraction has 55737 states and 77782 transitions. [2018-11-28 13:07:10,872 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-28 13:07:10,872 INFO L276 IsEmpty]: Start isEmpty. Operand 55737 states and 77782 transitions. [2018-11-28 13:07:10,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-11-28 13:07:10,875 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:07:10,875 INFO L402 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 1, 1, 1, 1, 1, 1] [2018-11-28 13:07:10,875 INFO L423 AbstractCegarLoop]: === Iteration 38 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:07:10,875 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:07:10,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1444546058, now seen corresponding path program 10 times [2018-11-28 13:07:10,876 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:07:10,876 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:07:10,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:07:10,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:07:10,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:07:10,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:07:10,946 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:07:10,946 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:07:10,946 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/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 [2018-11-28 13:07:10,953 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-28 13:07:10,964 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-11-28 13:07:10,965 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:07:10,966 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:07:10,972 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:07:10,986 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:07:10,986 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 12 [2018-11-28 13:07:10,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-28 13:07:10,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-28 13:07:10,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2018-11-28 13:07:10,987 INFO L87 Difference]: Start difference. First operand 55737 states and 77782 transitions. Second operand 13 states. [2018-11-28 13:07:11,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:07:11,827 INFO L93 Difference]: Finished difference Result 72432 states and 102654 transitions. [2018-11-28 13:07:11,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-28 13:07:11,828 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 81 [2018-11-28 13:07:11,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:07:11,889 INFO L225 Difference]: With dead ends: 72432 [2018-11-28 13:07:11,889 INFO L226 Difference]: Without dead ends: 72430 [2018-11-28 13:07:11,901 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 [2018-11-28 13:07:11,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72430 states. [2018-11-28 13:07:13,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72430 to 63455. [2018-11-28 13:07:13,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63455 states. [2018-11-28 13:07:13,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63455 states to 63455 states and 88331 transitions. [2018-11-28 13:07:13,149 INFO L78 Accepts]: Start accepts. Automaton has 63455 states and 88331 transitions. Word has length 81 [2018-11-28 13:07:13,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:07:13,150 INFO L480 AbstractCegarLoop]: Abstraction has 63455 states and 88331 transitions. [2018-11-28 13:07:13,150 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-28 13:07:13,150 INFO L276 IsEmpty]: Start isEmpty. Operand 63455 states and 88331 transitions. [2018-11-28 13:07:13,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-11-28 13:07:13,155 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:07:13,155 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1] [2018-11-28 13:07:13,156 INFO L423 AbstractCegarLoop]: === Iteration 39 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:07:13,156 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:07:13,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1692281031, now seen corresponding path program 8 times [2018-11-28 13:07:13,156 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:07:13,156 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:07:13,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:07:13,157 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:07:13,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:07:13,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:07:13,249 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:07:13,250 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:07:13,250 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/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 [2018-11-28 13:07:13,257 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 13:07:13,269 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 13:07:13,269 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:07:13,271 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:07:13,282 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:07:13,296 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:07:13,296 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2018-11-28 13:07:13,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-28 13:07:13,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-28 13:07:13,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-11-28 13:07:13,296 INFO L87 Difference]: Start difference. First operand 63455 states and 88331 transitions. Second operand 12 states. [2018-11-28 13:07:14,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:07:14,441 INFO L93 Difference]: Finished difference Result 87915 states and 123650 transitions. [2018-11-28 13:07:14,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 13:07:14,441 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 85 [2018-11-28 13:07:14,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:07:14,517 INFO L225 Difference]: With dead ends: 87915 [2018-11-28 13:07:14,517 INFO L226 Difference]: Without dead ends: 87914 [2018-11-28 13:07:14,531 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 [2018-11-28 13:07:14,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87914 states. [2018-11-28 13:07:15,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87914 to 65699. [2018-11-28 13:07:15,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65699 states. [2018-11-28 13:07:15,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65699 states to 65699 states and 91511 transitions. [2018-11-28 13:07:15,926 INFO L78 Accepts]: Start accepts. Automaton has 65699 states and 91511 transitions. Word has length 85 [2018-11-28 13:07:15,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:07:15,926 INFO L480 AbstractCegarLoop]: Abstraction has 65699 states and 91511 transitions. [2018-11-28 13:07:15,926 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-28 13:07:15,926 INFO L276 IsEmpty]: Start isEmpty. Operand 65699 states and 91511 transitions. [2018-11-28 13:07:15,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-11-28 13:07:15,930 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:07:15,930 INFO L402 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 1, 1, 1, 1, 1, 1] [2018-11-28 13:07:15,931 INFO L423 AbstractCegarLoop]: === Iteration 40 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:07:15,931 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:07:15,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1685753485, now seen corresponding path program 8 times [2018-11-28 13:07:15,931 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:07:15,931 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:07:15,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:07:15,931 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:07:15,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:07:15,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:07:15,990 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:07:15,990 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:07:15,990 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/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 [2018-11-28 13:07:15,997 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 13:07:16,007 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 13:07:16,007 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:07:16,008 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:07:16,013 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:07:16,027 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:07:16,027 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2018-11-28 13:07:16,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-28 13:07:16,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-28 13:07:16,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-11-28 13:07:16,028 INFO L87 Difference]: Start difference. First operand 65699 states and 91511 transitions. Second operand 11 states. [2018-11-28 13:07:17,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:07:17,117 INFO L93 Difference]: Finished difference Result 88656 states and 125565 transitions. [2018-11-28 13:07:17,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 13:07:17,232 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 85 [2018-11-28 13:07:17,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:07:17,305 INFO L225 Difference]: With dead ends: 88656 [2018-11-28 13:07:17,305 INFO L226 Difference]: Without dead ends: 88654 [2018-11-28 13:07:17,316 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 [2018-11-28 13:07:17,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88654 states. [2018-11-28 13:07:18,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88654 to 76293. [2018-11-28 13:07:18,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76293 states. [2018-11-28 13:07:18,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76293 states to 76293 states and 105928 transitions. [2018-11-28 13:07:18,765 INFO L78 Accepts]: Start accepts. Automaton has 76293 states and 105928 transitions. Word has length 85 [2018-11-28 13:07:18,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:07:18,766 INFO L480 AbstractCegarLoop]: Abstraction has 76293 states and 105928 transitions. [2018-11-28 13:07:18,766 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-28 13:07:18,766 INFO L276 IsEmpty]: Start isEmpty. Operand 76293 states and 105928 transitions. [2018-11-28 13:07:18,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-11-28 13:07:18,770 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:07:18,770 INFO L402 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1] [2018-11-28 13:07:18,770 INFO L423 AbstractCegarLoop]: === Iteration 41 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:07:18,770 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:07:18,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1536406213, now seen corresponding path program 6 times [2018-11-28 13:07:18,770 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:07:18,770 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:07:18,771 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:07:18,771 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:07:18,771 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:07:18,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:07:18,838 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:07:18,838 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:07:18,838 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/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 [2018-11-28 13:07:18,845 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-11-28 13:07:18,858 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2018-11-28 13:07:18,859 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:07:18,859 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:07:18,866 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:07:18,880 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:07:18,880 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2018-11-28 13:07:18,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 13:07:18,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 13:07:18,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-11-28 13:07:18,881 INFO L87 Difference]: Start difference. First operand 76293 states and 105928 transitions. Second operand 10 states. [2018-11-28 13:07:20,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:07:20,168 INFO L93 Difference]: Finished difference Result 109927 states and 154225 transitions. [2018-11-28 13:07:20,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 13:07:20,168 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2018-11-28 13:07:20,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:07:20,272 INFO L225 Difference]: With dead ends: 109927 [2018-11-28 13:07:20,272 INFO L226 Difference]: Without dead ends: 109926 [2018-11-28 13:07:20,292 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 [2018-11-28 13:07:20,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109926 states. [2018-11-28 13:07:22,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109926 to 80157. [2018-11-28 13:07:22,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80157 states. [2018-11-28 13:07:22,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80157 states to 80157 states and 111367 transitions. [2018-11-28 13:07:22,273 INFO L78 Accepts]: Start accepts. Automaton has 80157 states and 111367 transitions. Word has length 85 [2018-11-28 13:07:22,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:07:22,273 INFO L480 AbstractCegarLoop]: Abstraction has 80157 states and 111367 transitions. [2018-11-28 13:07:22,273 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 13:07:22,273 INFO L276 IsEmpty]: Start isEmpty. Operand 80157 states and 111367 transitions. [2018-11-28 13:07:22,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-11-28 13:07:22,278 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:07:22,278 INFO L402 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 11, 11, 1, 1, 1, 1, 1, 1] [2018-11-28 13:07:22,278 INFO L423 AbstractCegarLoop]: === Iteration 42 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:07:22,278 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:07:22,278 INFO L82 PathProgramCache]: Analyzing trace with hash -508374954, now seen corresponding path program 11 times [2018-11-28 13:07:22,279 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:07:22,279 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:07:22,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:07:22,279 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:07:22,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:07:22,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:07:22,379 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 0 proven. 451 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:07:22,379 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:07:22,379 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/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 [2018-11-28 13:07:22,394 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-11-28 13:07:22,415 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2018-11-28 13:07:22,415 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:07:22,417 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:07:22,556 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 446 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-28 13:07:22,571 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-28 13:07:22,571 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 25 [2018-11-28 13:07:22,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-11-28 13:07:22,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-11-28 13:07:22,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2018-11-28 13:07:22,571 INFO L87 Difference]: Start difference. First operand 80157 states and 111367 transitions. Second operand 25 states. [2018-11-28 13:07:23,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:07:23,877 INFO L93 Difference]: Finished difference Result 99235 states and 136781 transitions. [2018-11-28 13:07:23,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2018-11-28 13:07:23,878 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 88 [2018-11-28 13:07:23,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:07:23,879 INFO L225 Difference]: With dead ends: 99235 [2018-11-28 13:07:23,879 INFO L226 Difference]: Without dead ends: 501 [2018-11-28 13:07:23,937 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2402 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=2313, Invalid=5877, Unknown=0, NotChecked=0, Total=8190 [2018-11-28 13:07:23,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2018-11-28 13:07:23,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 310. [2018-11-28 13:07:23,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2018-11-28 13:07:23,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 348 transitions. [2018-11-28 13:07:23,945 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 348 transitions. Word has length 88 [2018-11-28 13:07:23,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:07:23,945 INFO L480 AbstractCegarLoop]: Abstraction has 310 states and 348 transitions. [2018-11-28 13:07:23,945 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-11-28 13:07:23,945 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 348 transitions. [2018-11-28 13:07:23,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-11-28 13:07:23,946 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:07:23,946 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1] [2018-11-28 13:07:23,946 INFO L423 AbstractCegarLoop]: === Iteration 43 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:07:23,946 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:07:23,946 INFO L82 PathProgramCache]: Analyzing trace with hash 879701896, now seen corresponding path program 9 times [2018-11-28 13:07:23,947 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:07:23,947 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:07:23,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:07:23,947 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:07:23,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:07:23,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:07:24,004 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:07:24,004 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:07:24,004 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/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 [2018-11-28 13:07:24,011 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-28 13:07:24,025 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2018-11-28 13:07:24,026 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:07:24,027 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:07:24,036 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:07:24,050 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:07:24,050 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2018-11-28 13:07:24,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-28 13:07:24,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-28 13:07:24,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-11-28 13:07:24,051 INFO L87 Difference]: Start difference. First operand 310 states and 348 transitions. Second operand 12 states. [2018-11-28 13:07:24,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:07:24,078 INFO L93 Difference]: Finished difference Result 323 states and 361 transitions. [2018-11-28 13:07:24,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 13:07:24,078 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 94 [2018-11-28 13:07:24,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:07:24,079 INFO L225 Difference]: With dead ends: 323 [2018-11-28 13:07:24,079 INFO L226 Difference]: Without dead ends: 246 [2018-11-28 13:07:24,079 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 [2018-11-28 13:07:24,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2018-11-28 13:07:24,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 226. [2018-11-28 13:07:24,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2018-11-28 13:07:24,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 264 transitions. [2018-11-28 13:07:24,085 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 264 transitions. Word has length 94 [2018-11-28 13:07:24,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:07:24,085 INFO L480 AbstractCegarLoop]: Abstraction has 226 states and 264 transitions. [2018-11-28 13:07:24,085 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-28 13:07:24,085 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 264 transitions. [2018-11-28 13:07:24,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-11-28 13:07:24,085 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:07:24,086 INFO L402 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1] [2018-11-28 13:07:24,086 INFO L423 AbstractCegarLoop]: === Iteration 44 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:07:24,086 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:07:24,086 INFO L82 PathProgramCache]: Analyzing trace with hash 270660750, now seen corresponding path program 7 times [2018-11-28 13:07:24,086 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:07:24,086 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:07:24,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:07:24,087 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:07:24,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:07:24,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:07:24,137 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:07:24,137 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:07:24,137 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/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 [2018-11-28 13:07:24,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:07:24,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:07:24,156 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:07:24,166 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:07:24,180 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:07:24,180 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2018-11-28 13:07:24,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-28 13:07:24,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-28 13:07:24,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-11-28 13:07:24,180 INFO L87 Difference]: Start difference. First operand 226 states and 264 transitions. Second operand 11 states. [2018-11-28 13:07:24,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:07:24,200 INFO L93 Difference]: Finished difference Result 247 states and 284 transitions. [2018-11-28 13:07:24,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 13:07:24,200 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 95 [2018-11-28 13:07:24,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:07:24,200 INFO L225 Difference]: With dead ends: 247 [2018-11-28 13:07:24,201 INFO L226 Difference]: Without dead ends: 106 [2018-11-28 13:07:24,201 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 [2018-11-28 13:07:24,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-11-28 13:07:24,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2018-11-28 13:07:24,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2018-11-28 13:07:24,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 105 transitions. [2018-11-28 13:07:24,203 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 105 transitions. Word has length 95 [2018-11-28 13:07:24,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:07:24,203 INFO L480 AbstractCegarLoop]: Abstraction has 106 states and 105 transitions. [2018-11-28 13:07:24,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-28 13:07:24,203 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 105 transitions. [2018-11-28 13:07:24,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-11-28 13:07:24,203 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:07:24,203 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1] [2018-11-28 13:07:24,204 INFO L423 AbstractCegarLoop]: === Iteration 45 === [mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:07:24,204 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:07:24,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1806118879, now seen corresponding path program 8 times [2018-11-28 13:07:24,204 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:07:24,204 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:07:24,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:07:24,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:07:24,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:07:24,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:07:24,274 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:07:24,275 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:07:24,275 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/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 [2018-11-28 13:07:24,284 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 13:07:24,298 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 13:07:24,298 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:07:24,300 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:07:24,315 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:07:24,329 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:07:24,330 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2018-11-28 13:07:24,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-28 13:07:24,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-28 13:07:24,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-11-28 13:07:24,330 INFO L87 Difference]: Start difference. First operand 106 states and 105 transitions. Second operand 12 states. [2018-11-28 13:07:24,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:07:24,351 INFO L93 Difference]: Finished difference Result 106 states and 105 transitions. [2018-11-28 13:07:24,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 13:07:24,351 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 105 [2018-11-28 13:07:24,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:07:24,352 INFO L225 Difference]: With dead ends: 106 [2018-11-28 13:07:24,352 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 13:07:24,352 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 [2018-11-28 13:07:24,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 13:07:24,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 13:07:24,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 13:07:24,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 13:07:24,353 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 105 [2018-11-28 13:07:24,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:07:24,353 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:07:24,353 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-28 13:07:24,353 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 13:07:24,353 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 13:07:24,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 13:07:25,077 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:25,079 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:25,134 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:25,165 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:25,181 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:25,197 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:25,249 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:25,257 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:25,285 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:25,419 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:25,577 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:25,837 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:25,869 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:25,927 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:25,927 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:25,927 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:26,242 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:26,270 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:26,304 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:26,327 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:26,339 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:26,345 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:26,767 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:26,845 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:26,896 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:26,951 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:27,028 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:27,128 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:27,147 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:28,070 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:28,654 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:28,887 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:32,641 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:33,894 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:34,162 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:35,447 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:36,007 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:36,636 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:36,769 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:37,085 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:37,105 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:37,557 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:37,595 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:37,742 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:38,283 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:38,365 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:40,720 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:41,569 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:45,459 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:45,563 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:46,860 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:50,511 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:51,183 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:51,332 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:53,818 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:54,459 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:56,040 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:57,356 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:07:59,855 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:08:05,552 WARN L180 SmtUtils]: Spent 41.18 s on a formula simplification. DAG size of input: 4688 DAG size of output: 2713 [2018-11-28 13:09:04,522 WARN L180 SmtUtils]: Spent 58.93 s on a formula simplification. DAG size of input: 2296 DAG size of output: 370 [2018-11-28 13:09:04,525 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 13:09:04,525 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 13:09:04,525 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 13:09:04,525 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 13:09:04,525 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 13:09:04,525 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 13:09:04,525 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-28 13:09:04,525 INFO L448 ceAbstractionStarter]: For program point mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2018-11-28 13:09:04,525 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 31) no Hoare annotation was computed. [2018-11-28 13:09:04,526 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 13 35) no Hoare annotation was computed. [2018-11-28 13:09:04,526 INFO L448 ceAbstractionStarter]: For program point L23(lines 23 31) no Hoare annotation was computed. [2018-11-28 13:09:04,526 INFO L448 ceAbstractionStarter]: For program point L19-2(lines 19 33) no Hoare annotation was computed. [2018-11-28 13:09:04,526 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-28 13:09:04,526 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-11-28 13:09:04,526 INFO L448 ceAbstractionStarter]: For program point L28-1(line 28) no Hoare annotation was computed. [2018-11-28 13:09:04,526 INFO L448 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-11-28 13:09:04,526 INFO L448 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2018-11-28 13:09:04,526 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-11-28 13:09:04,526 INFO L448 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-11-28 13:09:04,526 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2018-11-28 13:09:04,526 INFO L448 ceAbstractionStarter]: For program point mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2018-11-28 13:09:04,526 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 31) no Hoare annotation was computed. [2018-11-28 13:09:04,526 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2018-11-28 13:09:04,526 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 13 35) no Hoare annotation was computed. [2018-11-28 13:09:04,526 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2018-11-28 13:09:04,526 INFO L448 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2018-11-28 13:09:04,526 INFO L448 ceAbstractionStarter]: For program point mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2018-11-28 13:09:04,526 INFO L448 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2018-11-28 13:09:04,526 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 13 35) the Hoare annotation is: true [2018-11-28 13:09:04,526 INFO L448 ceAbstractionStarter]: For program point L30-1(line 30) no Hoare annotation was computed. [2018-11-28 13:09:04,526 INFO L448 ceAbstractionStarter]: For program point L26(line 26) no Hoare annotation was computed. [2018-11-28 13:09:04,527 INFO L448 ceAbstractionStarter]: For program point mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2018-11-28 13:09:04,527 INFO L448 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2018-11-28 13:09:04,527 INFO L448 ceAbstractionStarter]: For program point L22(lines 22 32) no Hoare annotation was computed. [2018-11-28 13:09:04,528 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)))))) [2018-11-28 13:09:04,528 INFO L448 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2018-11-28 13:09:04,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 01:09:04 BoogieIcfgContainer [2018-11-28 13:09:04,578 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 13:09:04,579 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 13:09:04,579 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 13:09:04,579 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 13:09:04,579 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:06:47" (3/4) ... [2018-11-28 13:09:04,583 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 13:09:04,589 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 13:09:04,589 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 13:09:04,592 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-28 13:09:04,593 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 13:09:04,593 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 13:09:04,593 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 13:09:04,639 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_023ec078-4061-4393-898a-466251db6c08/bin-2019/uautomizer/witness.graphml [2018-11-28 13:09:04,639 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 13:09:04,640 INFO L168 Benchmark]: Toolchain (without parser) took 137308.68 ms. Allocated memory was 1.0 GB in the beginning and 3.8 GB in the end (delta: 2.7 GB). Free memory was 958.0 MB in the beginning and 1.6 GB in the end (delta: -630.4 MB). Peak memory consumption was 2.1 GB. Max. memory is 11.5 GB. [2018-11-28 13:09:04,640 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 984.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:09:04,642 INFO L168 Benchmark]: CACSL2BoogieTranslator took 131.46 ms. Allocated memory is still 1.0 GB. Free memory was 958.0 MB in the beginning and 947.2 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-11-28 13:09:04,643 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.44 ms. Allocated memory is still 1.0 GB. Free memory is still 947.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:09:04,643 INFO L168 Benchmark]: Boogie Preprocessor took 13.76 ms. Allocated memory is still 1.0 GB. Free memory is still 947.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:09:04,643 INFO L168 Benchmark]: RCFGBuilder took 179.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -176.0 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-11-28 13:09:04,643 INFO L168 Benchmark]: TraceAbstraction took 136907.69 ms. Allocated memory was 1.2 GB in the beginning and 3.8 GB in the end (delta: 2.6 GB). Free memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: -467.8 MB). Peak memory consumption was 4.3 GB. Max. memory is 11.5 GB. [2018-11-28 13:09:04,643 INFO L168 Benchmark]: Witness Printer took 60.47 ms. Allocated memory is still 3.8 GB. Free memory is still 1.6 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:09:04,645 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 984.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 131.46 ms. Allocated memory is still 1.0 GB. Free memory was 958.0 MB in the beginning and 947.2 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 12.44 ms. Allocated memory is still 1.0 GB. Free memory is still 947.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.76 ms. Allocated memory is still 1.0 GB. Free memory is still 947.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 179.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -176.0 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 136907.69 ms. Allocated memory was 1.2 GB in the beginning and 3.8 GB in the end (delta: 2.6 GB). Free memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: -467.8 MB). Peak memory consumption was 4.3 GB. Max. memory is 11.5 GB. * Witness Printer took 60.47 ms. Allocated memory is still 3.8 GB. Free memory is still 1.6 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 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: 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: 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: 24]: 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: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((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, 136.8s OverallTime, 45 OverallIterations, 12 TraceHistogramMax, 15.9s AutomataDifference, 0.0s DeadEndRemovalTime, 100.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 1320 SDtfs, 7931 SDslu, 5774 SDs, 0 SdLazy, 1770 SolverSat, 1185 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2498 GetRequests, 2167 SyntacticMatches, 0 SemanticMatches, 331 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2405 ImplicationChecksByTransitivity, 2.0s 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: 16.0s AutomataMinimizationTime, 45 MinimizatonAttempts, 203067 StatesRemovedByMinimization, 42 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 1838 NumberOfFragments, 5715 HoareAnnotationTreeSize, 5 FomulaSimplifications, 604260 FormulaSimplificationTreeSizeReduction, 41.1s HoareSimplificationTime, 5 FomulaSimplificationsInter, 87620 FormulaSimplificationTreeSizeReductionInter, 58.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.3s 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...