./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b01c260e-3504-426c-9b44-a6636ce24f71/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b01c260e-3504-426c-9b44-a6636ce24f71/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b01c260e-3504-426c-9b44-a6636ce24f71/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b01c260e-3504-426c-9b44-a6636ce24f71/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b01c260e-3504-426c-9b44-a6636ce24f71/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b01c260e-3504-426c-9b44-a6636ce24f71/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 932d0be5444dce6d8d9a378b61966d0cdf64a5cb ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 22:08:39,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 22:08:39,351 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 22:08:39,358 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 22:08:39,358 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 22:08:39,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 22:08:39,360 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 22:08:39,361 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 22:08:39,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 22:08:39,363 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 22:08:39,364 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 22:08:39,365 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 22:08:39,365 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 22:08:39,366 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 22:08:39,367 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 22:08:39,368 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 22:08:39,368 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 22:08:39,369 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 22:08:39,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 22:08:39,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 22:08:39,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 22:08:39,374 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 22:08:39,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 22:08:39,375 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 22:08:39,377 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 22:08:39,377 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 22:08:39,377 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 22:08:39,378 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 22:08:39,378 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 22:08:39,378 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 22:08:39,379 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 22:08:39,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 22:08:39,379 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 22:08:39,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 22:08:39,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 22:08:39,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 22:08:39,381 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 22:08:39,381 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 22:08:39,381 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 22:08:39,382 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 22:08:39,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 22:08:39,383 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b01c260e-3504-426c-9b44-a6636ce24f71/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2019-12-07 22:08:39,393 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 22:08:39,393 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 22:08:39,394 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 22:08:39,394 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 22:08:39,394 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 22:08:39,394 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 22:08:39,394 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 22:08:39,395 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 22:08:39,395 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 22:08:39,395 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 22:08:39,395 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 22:08:39,395 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 22:08:39,395 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 22:08:39,395 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 22:08:39,396 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 22:08:39,396 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 22:08:39,396 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 22:08:39,396 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 22:08:39,396 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 22:08:39,397 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 22:08:39,397 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 22:08:39,397 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 22:08:39,397 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-12-07 22:08:39,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 22:08:39,397 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 22:08:39,397 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 22:08:39,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 22:08:39,398 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 22:08:39,398 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 22:08:39,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 22:08:39,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 22:08:39,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 22:08:39,398 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 22:08:39,398 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 22:08:39,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 22:08:39,399 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 22:08:39,399 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 22:08:39,399 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 22:08:39,399 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b01c260e-3504-426c-9b44-a6636ce24f71/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 932d0be5444dce6d8d9a378b61966d0cdf64a5cb [2019-12-07 22:08:39,497 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 22:08:39,508 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 22:08:39,511 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 22:08:39,512 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 22:08:39,512 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 22:08:39,513 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b01c260e-3504-426c-9b44-a6636ce24f71/bin/utaipan/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d.c [2019-12-07 22:08:39,560 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b01c260e-3504-426c-9b44-a6636ce24f71/bin/utaipan/data/ec67b0491/88d8dac7f453419d875a92d56e93454b/FLAGf07671e5e [2019-12-07 22:08:39,894 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 22:08:39,895 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b01c260e-3504-426c-9b44-a6636ce24f71/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d.c [2019-12-07 22:08:39,899 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b01c260e-3504-426c-9b44-a6636ce24f71/bin/utaipan/data/ec67b0491/88d8dac7f453419d875a92d56e93454b/FLAGf07671e5e [2019-12-07 22:08:39,907 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b01c260e-3504-426c-9b44-a6636ce24f71/bin/utaipan/data/ec67b0491/88d8dac7f453419d875a92d56e93454b [2019-12-07 22:08:39,909 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 22:08:39,910 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 22:08:39,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 22:08:39,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 22:08:39,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 22:08:39,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:08:39" (1/1) ... [2019-12-07 22:08:39,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@354778c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:39, skipping insertion in model container [2019-12-07 22:08:39,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:08:39" (1/1) ... [2019-12-07 22:08:39,920 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 22:08:39,930 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 22:08:40,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 22:08:40,034 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 22:08:40,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 22:08:40,089 INFO L208 MainTranslator]: Completed translation [2019-12-07 22:08:40,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:40 WrapperNode [2019-12-07 22:08:40,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 22:08:40,090 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 22:08:40,090 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 22:08:40,090 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 22:08:40,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:40" (1/1) ... [2019-12-07 22:08:40,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:40" (1/1) ... [2019-12-07 22:08:40,111 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 22:08:40,112 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 22:08:40,112 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 22:08:40,112 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 22:08:40,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:40" (1/1) ... [2019-12-07 22:08:40,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:40" (1/1) ... [2019-12-07 22:08:40,118 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:40" (1/1) ... [2019-12-07 22:08:40,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:40" (1/1) ... [2019-12-07 22:08:40,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:40" (1/1) ... [2019-12-07 22:08:40,122 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:40" (1/1) ... [2019-12-07 22:08:40,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:40" (1/1) ... [2019-12-07 22:08:40,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 22:08:40,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 22:08:40,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 22:08:40,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 22:08:40,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b01c260e-3504-426c-9b44-a6636ce24f71/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 22:08:40,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 22:08:40,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 22:08:40,293 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 22:08:40,294 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 22:08:40,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:08:40 BoogieIcfgContainer [2019-12-07 22:08:40,295 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 22:08:40,295 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 22:08:40,295 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 22:08:40,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 22:08:40,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 10:08:39" (1/3) ... [2019-12-07 22:08:40,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d903f57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:08:40, skipping insertion in model container [2019-12-07 22:08:40,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:40" (2/3) ... [2019-12-07 22:08:40,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d903f57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:08:40, skipping insertion in model container [2019-12-07 22:08:40,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:08:40" (3/3) ... [2019-12-07 22:08:40,299 INFO L109 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-random2d.c [2019-12-07 22:08:40,306 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 22:08:40,310 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2019-12-07 22:08:40,317 INFO L249 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2019-12-07 22:08:40,331 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 22:08:40,332 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 22:08:40,332 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 22:08:40,332 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 22:08:40,332 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 22:08:40,332 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 22:08:40,332 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 22:08:40,332 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 22:08:40,343 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-12-07 22:08:40,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-07 22:08:40,346 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:40,347 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-07 22:08:40,347 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 22:08:40,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:40,352 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-12-07 22:08:40,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:40,359 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634627592] [2019-12-07 22:08:40,359 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:40,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:40,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:40,443 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634627592] [2019-12-07 22:08:40,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:08:40,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 22:08:40,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769406549] [2019-12-07 22:08:40,447 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 22:08:40,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:40,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 22:08:40,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 22:08:40,458 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 3 states. [2019-12-07 22:08:40,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:40,485 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2019-12-07 22:08:40,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:08:40,487 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-12-07 22:08:40,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:40,494 INFO L225 Difference]: With dead ends: 33 [2019-12-07 22:08:40,494 INFO L226 Difference]: Without dead ends: 30 [2019-12-07 22:08:40,496 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 22:08:40,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-12-07 22:08:40,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2019-12-07 22:08:40,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-12-07 22:08:40,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2019-12-07 22:08:40,520 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 3 [2019-12-07 22:08:40,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:40,520 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2019-12-07 22:08:40,520 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 22:08:40,520 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2019-12-07 22:08:40,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 22:08:40,520 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:40,520 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 22:08:40,521 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 22:08:40,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:40,521 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2019-12-07 22:08:40,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:40,521 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513286457] [2019-12-07 22:08:40,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:40,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:40,533 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513286457] [2019-12-07 22:08:40,533 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:08:40,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 22:08:40,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653788324] [2019-12-07 22:08:40,535 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 22:08:40,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:40,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 22:08:40,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 22:08:40,536 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand 3 states. [2019-12-07 22:08:40,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:40,544 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2019-12-07 22:08:40,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:08:40,544 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-07 22:08:40,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:40,545 INFO L225 Difference]: With dead ends: 29 [2019-12-07 22:08:40,545 INFO L226 Difference]: Without dead ends: 28 [2019-12-07 22:08:40,546 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 22:08:40,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-07 22:08:40,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-07 22:08:40,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-07 22:08:40,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2019-12-07 22:08:40,550 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 4 [2019-12-07 22:08:40,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:40,550 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2019-12-07 22:08:40,550 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 22:08:40,550 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2019-12-07 22:08:40,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 22:08:40,550 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:40,550 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 22:08:40,551 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 22:08:40,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:40,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1366845466, now seen corresponding path program 1 times [2019-12-07 22:08:40,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:40,551 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24633946] [2019-12-07 22:08:40,551 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:40,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:40,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:40,567 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24633946] [2019-12-07 22:08:40,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:08:40,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 22:08:40,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554244708] [2019-12-07 22:08:40,567 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 22:08:40,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:40,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 22:08:40,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 22:08:40,568 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand 3 states. [2019-12-07 22:08:40,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:40,591 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2019-12-07 22:08:40,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:08:40,591 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-07 22:08:40,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:40,592 INFO L225 Difference]: With dead ends: 51 [2019-12-07 22:08:40,593 INFO L226 Difference]: Without dead ends: 49 [2019-12-07 22:08:40,593 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 22:08:40,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-12-07 22:08:40,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2019-12-07 22:08:40,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-12-07 22:08:40,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 59 transitions. [2019-12-07 22:08:40,600 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 59 transitions. Word has length 7 [2019-12-07 22:08:40,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:40,600 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 59 transitions. [2019-12-07 22:08:40,600 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 22:08:40,600 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 59 transitions. [2019-12-07 22:08:40,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 22:08:40,601 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:40,601 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-12-07 22:08:40,601 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 22:08:40,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:40,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1366808307, now seen corresponding path program 1 times [2019-12-07 22:08:40,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:40,602 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143333361] [2019-12-07 22:08:40,602 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:40,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:40,624 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:40,625 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143333361] [2019-12-07 22:08:40,625 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1310873083] [2019-12-07 22:08:40,625 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b01c260e-3504-426c-9b44-a6636ce24f71/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:08:40,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:40,649 INFO L264 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 22:08:40,652 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:08:40,664 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:40,664 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:08:40,676 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:40,677 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [947561721] [2019-12-07 22:08:40,691 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2019-12-07 22:08:40,691 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 22:08:40,695 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 22:08:40,699 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 22:08:40,700 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 22:08:40,803 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 22:08:40,943 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 22:08:40,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-12-07 22:08:40,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2019-12-07 22:08:40,944 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619043327] [2019-12-07 22:08:40,944 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 22:08:40,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:40,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 22:08:40,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2019-12-07 22:08:40,945 INFO L87 Difference]: Start difference. First operand 43 states and 59 transitions. Second operand 6 states. [2019-12-07 22:08:40,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:40,973 INFO L93 Difference]: Finished difference Result 146 states and 202 transitions. [2019-12-07 22:08:40,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 22:08:40,973 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 [2019-12-07 22:08:40,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:40,975 INFO L225 Difference]: With dead ends: 146 [2019-12-07 22:08:40,975 INFO L226 Difference]: Without dead ends: 145 [2019-12-07 22:08:40,975 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2019-12-07 22:08:40,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2019-12-07 22:08:40,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 123. [2019-12-07 22:08:40,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-12-07 22:08:40,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 196 transitions. [2019-12-07 22:08:40,987 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 196 transitions. Word has length 7 [2019-12-07 22:08:40,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:40,987 INFO L462 AbstractCegarLoop]: Abstraction has 123 states and 196 transitions. [2019-12-07 22:08:40,988 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 22:08:40,988 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 196 transitions. [2019-12-07 22:08:40,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 22:08:40,988 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:40,988 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 22:08:41,189 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:08:41,189 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 22:08:41,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:41,189 INFO L82 PathProgramCache]: Analyzing trace with hash 577463568, now seen corresponding path program 1 times [2019-12-07 22:08:41,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:41,190 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085789078] [2019-12-07 22:08:41,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:41,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:41,202 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085789078] [2019-12-07 22:08:41,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:08:41,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 22:08:41,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935020591] [2019-12-07 22:08:41,202 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 22:08:41,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:41,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 22:08:41,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 22:08:41,203 INFO L87 Difference]: Start difference. First operand 123 states and 196 transitions. Second operand 3 states. [2019-12-07 22:08:41,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:41,223 INFO L93 Difference]: Finished difference Result 212 states and 337 transitions. [2019-12-07 22:08:41,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:08:41,224 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-07 22:08:41,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:41,226 INFO L225 Difference]: With dead ends: 212 [2019-12-07 22:08:41,226 INFO L226 Difference]: Without dead ends: 210 [2019-12-07 22:08:41,226 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 22:08:41,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2019-12-07 22:08:41,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 205. [2019-12-07 22:08:41,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2019-12-07 22:08:41,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 326 transitions. [2019-12-07 22:08:41,241 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 326 transitions. Word has length 8 [2019-12-07 22:08:41,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:41,241 INFO L462 AbstractCegarLoop]: Abstraction has 205 states and 326 transitions. [2019-12-07 22:08:41,241 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 22:08:41,241 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 326 transitions. [2019-12-07 22:08:41,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 22:08:41,241 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:41,241 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 22:08:41,242 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 22:08:41,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:41,242 INFO L82 PathProgramCache]: Analyzing trace with hash 721693167, now seen corresponding path program 1 times [2019-12-07 22:08:41,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:41,242 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600690810] [2019-12-07 22:08:41,242 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:41,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:41,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:41,254 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600690810] [2019-12-07 22:08:41,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:08:41,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 22:08:41,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64775291] [2019-12-07 22:08:41,255 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 22:08:41,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:41,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 22:08:41,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 22:08:41,255 INFO L87 Difference]: Start difference. First operand 205 states and 326 transitions. Second operand 3 states. [2019-12-07 22:08:41,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:41,272 INFO L93 Difference]: Finished difference Result 345 states and 546 transitions. [2019-12-07 22:08:41,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:08:41,273 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-07 22:08:41,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:41,275 INFO L225 Difference]: With dead ends: 345 [2019-12-07 22:08:41,275 INFO L226 Difference]: Without dead ends: 343 [2019-12-07 22:08:41,275 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 22:08:41,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2019-12-07 22:08:41,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 330. [2019-12-07 22:08:41,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2019-12-07 22:08:41,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 506 transitions. [2019-12-07 22:08:41,292 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 506 transitions. Word has length 9 [2019-12-07 22:08:41,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:41,292 INFO L462 AbstractCegarLoop]: Abstraction has 330 states and 506 transitions. [2019-12-07 22:08:41,292 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 22:08:41,292 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 506 transitions. [2019-12-07 22:08:41,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 22:08:41,292 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:41,293 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 22:08:41,293 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 22:08:41,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:41,293 INFO L82 PathProgramCache]: Analyzing trace with hash 897651769, now seen corresponding path program 1 times [2019-12-07 22:08:41,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:41,293 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394148821] [2019-12-07 22:08:41,293 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:41,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:41,305 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394148821] [2019-12-07 22:08:41,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:08:41,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 22:08:41,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052057846] [2019-12-07 22:08:41,306 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 22:08:41,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:41,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 22:08:41,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 22:08:41,307 INFO L87 Difference]: Start difference. First operand 330 states and 506 transitions. Second operand 3 states. [2019-12-07 22:08:41,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:41,325 INFO L93 Difference]: Finished difference Result 549 states and 840 transitions. [2019-12-07 22:08:41,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:08:41,326 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-07 22:08:41,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:41,328 INFO L225 Difference]: With dead ends: 549 [2019-12-07 22:08:41,328 INFO L226 Difference]: Without dead ends: 547 [2019-12-07 22:08:41,329 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 22:08:41,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2019-12-07 22:08:41,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 542. [2019-12-07 22:08:41,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2019-12-07 22:08:41,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 808 transitions. [2019-12-07 22:08:41,347 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 808 transitions. Word has length 10 [2019-12-07 22:08:41,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:41,348 INFO L462 AbstractCegarLoop]: Abstraction has 542 states and 808 transitions. [2019-12-07 22:08:41,348 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 22:08:41,348 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 808 transitions. [2019-12-07 22:08:41,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 22:08:41,348 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:41,348 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1] [2019-12-07 22:08:41,349 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 22:08:41,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:41,349 INFO L82 PathProgramCache]: Analyzing trace with hash -795491305, now seen corresponding path program 1 times [2019-12-07 22:08:41,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:41,349 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128334750] [2019-12-07 22:08:41,349 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:41,365 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:41,365 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128334750] [2019-12-07 22:08:41,365 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082976500] [2019-12-07 22:08:41,365 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b01c260e-3504-426c-9b44-a6636ce24f71/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:08:41,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:41,381 INFO L264 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 22:08:41,382 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:08:41,385 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:41,385 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:08:41,395 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:41,395 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1631965438] [2019-12-07 22:08:41,396 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2019-12-07 22:08:41,396 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 22:08:41,397 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 22:08:41,397 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 22:08:41,397 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 22:08:41,473 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 22:08:41,778 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 22:08:41,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-12-07 22:08:41,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2019-12-07 22:08:41,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482508124] [2019-12-07 22:08:41,779 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 22:08:41,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:41,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 22:08:41,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2019-12-07 22:08:41,780 INFO L87 Difference]: Start difference. First operand 542 states and 808 transitions. Second operand 6 states. [2019-12-07 22:08:41,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:41,842 INFO L93 Difference]: Finished difference Result 1046 states and 1607 transitions. [2019-12-07 22:08:41,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 22:08:41,843 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-12-07 22:08:41,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:41,847 INFO L225 Difference]: With dead ends: 1046 [2019-12-07 22:08:41,847 INFO L226 Difference]: Without dead ends: 1044 [2019-12-07 22:08:41,848 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2019-12-07 22:08:41,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2019-12-07 22:08:41,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 903. [2019-12-07 22:08:41,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 903 states. [2019-12-07 22:08:41,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1366 transitions. [2019-12-07 22:08:41,868 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1366 transitions. Word has length 14 [2019-12-07 22:08:41,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:41,868 INFO L462 AbstractCegarLoop]: Abstraction has 903 states and 1366 transitions. [2019-12-07 22:08:41,868 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 22:08:41,869 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1366 transitions. [2019-12-07 22:08:41,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 22:08:41,869 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:41,870 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 22:08:42,070 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:08:42,071 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 22:08:42,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:42,071 INFO L82 PathProgramCache]: Analyzing trace with hash 592160614, now seen corresponding path program 1 times [2019-12-07 22:08:42,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:42,072 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385050716] [2019-12-07 22:08:42,072 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:42,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:42,101 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:42,102 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385050716] [2019-12-07 22:08:42,102 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648410021] [2019-12-07 22:08:42,102 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b01c260e-3504-426c-9b44-a6636ce24f71/bin/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:08:42,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:42,120 INFO L264 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 22:08:42,120 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:08:42,125 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:42,125 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:08:42,132 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:42,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-12-07 22:08:42,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [2] total 5 [2019-12-07 22:08:42,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126519795] [2019-12-07 22:08:42,132 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 22:08:42,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:42,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 22:08:42,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-12-07 22:08:42,133 INFO L87 Difference]: Start difference. First operand 903 states and 1366 transitions. Second operand 4 states. [2019-12-07 22:08:42,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:42,150 INFO L93 Difference]: Finished difference Result 903 states and 1366 transitions. [2019-12-07 22:08:42,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:08:42,151 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2019-12-07 22:08:42,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:42,156 INFO L225 Difference]: With dead ends: 903 [2019-12-07 22:08:42,156 INFO L226 Difference]: Without dead ends: 902 [2019-12-07 22:08:42,157 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-12-07 22:08:42,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2019-12-07 22:08:42,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 902. [2019-12-07 22:08:42,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 902 states. [2019-12-07 22:08:42,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1345 transitions. [2019-12-07 22:08:42,181 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1345 transitions. Word has length 16 [2019-12-07 22:08:42,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:42,181 INFO L462 AbstractCegarLoop]: Abstraction has 902 states and 1345 transitions. [2019-12-07 22:08:42,181 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 22:08:42,182 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1345 transitions. [2019-12-07 22:08:42,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 22:08:42,183 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:42,183 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2019-12-07 22:08:42,383 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:08:42,384 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 22:08:42,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:42,385 INFO L82 PathProgramCache]: Analyzing trace with hash 1177295603, now seen corresponding path program 1 times [2019-12-07 22:08:42,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:42,386 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921606903] [2019-12-07 22:08:42,386 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:42,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:42,443 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:42,444 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921606903] [2019-12-07 22:08:42,444 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828394706] [2019-12-07 22:08:42,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b01c260e-3504-426c-9b44-a6636ce24f71/bin/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:08:42,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:42,496 INFO L264 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 22:08:42,498 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:08:42,503 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:42,503 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:08:42,539 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:42,539 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2119331221] [2019-12-07 22:08:42,541 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2019-12-07 22:08:42,541 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 22:08:42,542 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 22:08:42,542 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 22:08:42,543 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 22:08:42,678 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 22:08:42,942 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 22:08:42,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-12-07 22:08:42,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2019-12-07 22:08:42,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840346225] [2019-12-07 22:08:42,942 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 22:08:42,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:42,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 22:08:42,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2019-12-07 22:08:42,943 INFO L87 Difference]: Start difference. First operand 902 states and 1345 transitions. Second operand 6 states. [2019-12-07 22:08:42,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:42,993 INFO L93 Difference]: Finished difference Result 1851 states and 2825 transitions. [2019-12-07 22:08:42,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 22:08:42,993 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-12-07 22:08:42,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:43,003 INFO L225 Difference]: With dead ends: 1851 [2019-12-07 22:08:43,003 INFO L226 Difference]: Without dead ends: 1850 [2019-12-07 22:08:43,005 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2019-12-07 22:08:43,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1850 states. [2019-12-07 22:08:43,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1850 to 1514. [2019-12-07 22:08:43,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1514 states. [2019-12-07 22:08:43,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 2310 transitions. [2019-12-07 22:08:43,045 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 2310 transitions. Word has length 17 [2019-12-07 22:08:43,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:43,045 INFO L462 AbstractCegarLoop]: Abstraction has 1514 states and 2310 transitions. [2019-12-07 22:08:43,045 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 22:08:43,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 2310 transitions. [2019-12-07 22:08:43,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 22:08:43,046 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:43,046 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2019-12-07 22:08:43,246 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:08:43,247 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 22:08:43,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:43,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1222343671, now seen corresponding path program 1 times [2019-12-07 22:08:43,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:43,247 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757337111] [2019-12-07 22:08:43,247 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:43,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:43,263 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:43,263 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757337111] [2019-12-07 22:08:43,264 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50445720] [2019-12-07 22:08:43,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b01c260e-3504-426c-9b44-a6636ce24f71/bin/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:08:43,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:43,281 INFO L264 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 22:08:43,282 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:08:43,284 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:43,284 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:08:43,292 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:43,292 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [415352453] [2019-12-07 22:08:43,293 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2019-12-07 22:08:43,294 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 22:08:43,294 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 22:08:43,294 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 22:08:43,294 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 22:08:43,358 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 22:08:43,725 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 22:08:43,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-12-07 22:08:43,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2019-12-07 22:08:43,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568745772] [2019-12-07 22:08:43,727 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 22:08:43,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:43,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 22:08:43,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2019-12-07 22:08:43,727 INFO L87 Difference]: Start difference. First operand 1514 states and 2310 transitions. Second operand 6 states. [2019-12-07 22:08:43,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:43,792 INFO L93 Difference]: Finished difference Result 3726 states and 5920 transitions. [2019-12-07 22:08:43,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 22:08:43,793 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2019-12-07 22:08:43,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:43,812 INFO L225 Difference]: With dead ends: 3726 [2019-12-07 22:08:43,812 INFO L226 Difference]: Without dead ends: 3724 [2019-12-07 22:08:43,815 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2019-12-07 22:08:43,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3724 states. [2019-12-07 22:08:43,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3724 to 3221. [2019-12-07 22:08:43,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3221 states. [2019-12-07 22:08:43,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3221 states to 3221 states and 4918 transitions. [2019-12-07 22:08:43,875 INFO L78 Accepts]: Start accepts. Automaton has 3221 states and 4918 transitions. Word has length 18 [2019-12-07 22:08:43,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:43,875 INFO L462 AbstractCegarLoop]: Abstraction has 3221 states and 4918 transitions. [2019-12-07 22:08:43,875 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 22:08:43,875 INFO L276 IsEmpty]: Start isEmpty. Operand 3221 states and 4918 transitions. [2019-12-07 22:08:43,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 22:08:43,876 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:43,876 INFO L410 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 1, 1] [2019-12-07 22:08:44,076 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:08:44,076 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 22:08:44,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:44,077 INFO L82 PathProgramCache]: Analyzing trace with hash -134417391, now seen corresponding path program 2 times [2019-12-07 22:08:44,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:44,077 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478938333] [2019-12-07 22:08:44,077 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:44,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:44,095 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-12-07 22:08:44,096 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478938333] [2019-12-07 22:08:44,096 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297517740] [2019-12-07 22:08:44,096 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b01c260e-3504-426c-9b44-a6636ce24f71/bin/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:08:44,115 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-12-07 22:08:44,115 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 22:08:44,116 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 22:08:44,117 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:08:44,119 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-12-07 22:08:44,119 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:08:44,132 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-12-07 22:08:44,132 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1595403722] [2019-12-07 22:08:44,133 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2019-12-07 22:08:44,133 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 22:08:44,133 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 22:08:44,133 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 22:08:44,133 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 22:08:44,158 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 22:08:44,276 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 22:08:44,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-12-07 22:08:44,276 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2019-12-07 22:08:44,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763650427] [2019-12-07 22:08:44,277 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 22:08:44,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:44,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 22:08:44,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2019-12-07 22:08:44,277 INFO L87 Difference]: Start difference. First operand 3221 states and 4918 transitions. Second operand 6 states. [2019-12-07 22:08:44,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:44,310 INFO L93 Difference]: Finished difference Result 3221 states and 4918 transitions. [2019-12-07 22:08:44,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 22:08:44,310 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2019-12-07 22:08:44,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:44,322 INFO L225 Difference]: With dead ends: 3221 [2019-12-07 22:08:44,322 INFO L226 Difference]: Without dead ends: 3220 [2019-12-07 22:08:44,324 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2019-12-07 22:08:44,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3220 states. [2019-12-07 22:08:44,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3220 to 2888. [2019-12-07 22:08:44,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2888 states. [2019-12-07 22:08:44,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2888 states to 2888 states and 4272 transitions. [2019-12-07 22:08:44,367 INFO L78 Accepts]: Start accepts. Automaton has 2888 states and 4272 transitions. Word has length 19 [2019-12-07 22:08:44,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:44,367 INFO L462 AbstractCegarLoop]: Abstraction has 2888 states and 4272 transitions. [2019-12-07 22:08:44,367 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 22:08:44,367 INFO L276 IsEmpty]: Start isEmpty. Operand 2888 states and 4272 transitions. [2019-12-07 22:08:44,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-07 22:08:44,368 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:44,368 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 22:08:44,568 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:08:44,569 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 22:08:44,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:44,569 INFO L82 PathProgramCache]: Analyzing trace with hash -668230362, now seen corresponding path program 1 times [2019-12-07 22:08:44,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:44,569 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122235377] [2019-12-07 22:08:44,570 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:44,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:44,598 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:44,599 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122235377] [2019-12-07 22:08:44,599 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090182250] [2019-12-07 22:08:44,600 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b01c260e-3504-426c-9b44-a6636ce24f71/bin/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:08:44,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:44,650 INFO L264 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 22:08:44,652 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:08:44,668 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:44,668 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:08:44,692 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:44,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-12-07 22:08:44,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [2] total 5 [2019-12-07 22:08:44,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089006910] [2019-12-07 22:08:44,694 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 22:08:44,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:44,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 22:08:44,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-12-07 22:08:44,695 INFO L87 Difference]: Start difference. First operand 2888 states and 4272 transitions. Second operand 4 states. [2019-12-07 22:08:44,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:44,761 INFO L93 Difference]: Finished difference Result 2888 states and 4272 transitions. [2019-12-07 22:08:44,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:08:44,761 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2019-12-07 22:08:44,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:44,775 INFO L225 Difference]: With dead ends: 2888 [2019-12-07 22:08:44,775 INFO L226 Difference]: Without dead ends: 2887 [2019-12-07 22:08:44,778 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-12-07 22:08:44,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2887 states. [2019-12-07 22:08:44,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2887 to 2887. [2019-12-07 22:08:44,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2887 states. [2019-12-07 22:08:44,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2887 states to 2887 states and 4188 transitions. [2019-12-07 22:08:44,826 INFO L78 Accepts]: Start accepts. Automaton has 2887 states and 4188 transitions. Word has length 20 [2019-12-07 22:08:44,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:44,826 INFO L462 AbstractCegarLoop]: Abstraction has 2887 states and 4188 transitions. [2019-12-07 22:08:44,827 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 22:08:44,827 INFO L276 IsEmpty]: Start isEmpty. Operand 2887 states and 4188 transitions. [2019-12-07 22:08:44,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-12-07 22:08:44,827 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:44,827 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2019-12-07 22:08:45,027 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:08:45,029 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 22:08:45,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:45,029 INFO L82 PathProgramCache]: Analyzing trace with hash 759881029, now seen corresponding path program 1 times [2019-12-07 22:08:45,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:45,030 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856091348] [2019-12-07 22:08:45,030 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:45,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:45,071 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:45,072 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856091348] [2019-12-07 22:08:45,072 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34586595] [2019-12-07 22:08:45,072 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b01c260e-3504-426c-9b44-a6636ce24f71/bin/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:08:45,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:45,125 INFO L264 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 22:08:45,127 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:08:45,133 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:45,133 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:08:45,164 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:45,165 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1226969083] [2019-12-07 22:08:45,167 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2019-12-07 22:08:45,167 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 22:08:45,168 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 22:08:45,168 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 22:08:45,169 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 22:08:45,267 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 22:08:45,641 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 22:08:45,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-12-07 22:08:45,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2019-12-07 22:08:45,642 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171140223] [2019-12-07 22:08:45,642 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 22:08:45,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:45,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 22:08:45,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2019-12-07 22:08:45,643 INFO L87 Difference]: Start difference. First operand 2887 states and 4188 transitions. Second operand 6 states. [2019-12-07 22:08:45,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:45,704 INFO L93 Difference]: Finished difference Result 7367 states and 10815 transitions. [2019-12-07 22:08:45,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 22:08:45,704 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2019-12-07 22:08:45,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:45,728 INFO L225 Difference]: With dead ends: 7367 [2019-12-07 22:08:45,728 INFO L226 Difference]: Without dead ends: 7366 [2019-12-07 22:08:45,732 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 46 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2019-12-07 22:08:45,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7366 states. [2019-12-07 22:08:45,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7366 to 5929. [2019-12-07 22:08:45,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5929 states. [2019-12-07 22:08:45,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5929 states to 5929 states and 8590 transitions. [2019-12-07 22:08:45,812 INFO L78 Accepts]: Start accepts. Automaton has 5929 states and 8590 transitions. Word has length 21 [2019-12-07 22:08:45,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:45,812 INFO L462 AbstractCegarLoop]: Abstraction has 5929 states and 8590 transitions. [2019-12-07 22:08:45,812 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 22:08:45,812 INFO L276 IsEmpty]: Start isEmpty. Operand 5929 states and 8590 transitions. [2019-12-07 22:08:45,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-07 22:08:45,813 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:45,814 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 1, 1] [2019-12-07 22:08:46,014 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:08:46,014 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 22:08:46,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:46,014 INFO L82 PathProgramCache]: Analyzing trace with hash -507101786, now seen corresponding path program 2 times [2019-12-07 22:08:46,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:46,015 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425107681] [2019-12-07 22:08:46,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:46,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:46,046 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:46,046 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425107681] [2019-12-07 22:08:46,046 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403753335] [2019-12-07 22:08:46,046 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b01c260e-3504-426c-9b44-a6636ce24f71/bin/utaipan/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:08:46,071 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-12-07 22:08:46,072 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 22:08:46,072 INFO L264 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 22:08:46,073 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:08:46,078 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:46,078 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:08:46,115 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:46,115 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1880734498] [2019-12-07 22:08:46,116 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2019-12-07 22:08:46,116 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 22:08:46,116 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 22:08:46,116 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 22:08:46,117 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 22:08:46,149 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 22:08:46,417 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 22:08:46,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-12-07 22:08:46,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2019-12-07 22:08:46,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813850125] [2019-12-07 22:08:46,418 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 22:08:46,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:46,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 22:08:46,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2019-12-07 22:08:46,419 INFO L87 Difference]: Start difference. First operand 5929 states and 8590 transitions. Second operand 12 states. [2019-12-07 22:08:46,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:46,620 INFO L93 Difference]: Finished difference Result 21315 states and 31698 transitions. [2019-12-07 22:08:46,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-07 22:08:46,620 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2019-12-07 22:08:46,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:46,670 INFO L225 Difference]: With dead ends: 21315 [2019-12-07 22:08:46,670 INFO L226 Difference]: Without dead ends: 21313 [2019-12-07 22:08:46,685 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2019-12-07 22:08:46,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21313 states. [2019-12-07 22:08:46,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21313 to 14527. [2019-12-07 22:08:46,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14527 states. [2019-12-07 22:08:46,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14527 states to 14527 states and 20794 transitions. [2019-12-07 22:08:46,900 INFO L78 Accepts]: Start accepts. Automaton has 14527 states and 20794 transitions. Word has length 35 [2019-12-07 22:08:46,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:46,900 INFO L462 AbstractCegarLoop]: Abstraction has 14527 states and 20794 transitions. [2019-12-07 22:08:46,900 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 22:08:46,900 INFO L276 IsEmpty]: Start isEmpty. Operand 14527 states and 20794 transitions. [2019-12-07 22:08:46,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-12-07 22:08:46,902 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:46,902 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 1, 1] [2019-12-07 22:08:47,102 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:08:47,103 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 22:08:47,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:47,104 INFO L82 PathProgramCache]: Analyzing trace with hash 589297713, now seen corresponding path program 2 times [2019-12-07 22:08:47,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:47,104 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443907044] [2019-12-07 22:08:47,104 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:47,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:47,168 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:47,168 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443907044] [2019-12-07 22:08:47,168 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009372991] [2019-12-07 22:08:47,168 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b01c260e-3504-426c-9b44-a6636ce24f71/bin/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:08:47,188 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-12-07 22:08:47,188 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 22:08:47,189 INFO L264 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 22:08:47,190 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:08:47,194 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:47,194 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:08:47,235 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:47,235 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1600464096] [2019-12-07 22:08:47,235 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2019-12-07 22:08:47,236 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 22:08:47,236 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 22:08:47,236 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 22:08:47,236 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 22:08:47,271 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 22:08:47,579 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 22:08:47,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-12-07 22:08:47,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2019-12-07 22:08:47,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979266646] [2019-12-07 22:08:47,580 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 22:08:47,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:47,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 22:08:47,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2019-12-07 22:08:47,580 INFO L87 Difference]: Start difference. First operand 14527 states and 20794 transitions. Second operand 12 states. [2019-12-07 22:08:47,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:47,864 INFO L93 Difference]: Finished difference Result 41738 states and 60115 transitions. [2019-12-07 22:08:47,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-07 22:08:47,864 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 41 [2019-12-07 22:08:47,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:47,905 INFO L225 Difference]: With dead ends: 41738 [2019-12-07 22:08:47,905 INFO L226 Difference]: Without dead ends: 41737 [2019-12-07 22:08:47,921 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 103 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2019-12-07 22:08:47,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41737 states. [2019-12-07 22:08:48,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41737 to 23461. [2019-12-07 22:08:48,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23461 states. [2019-12-07 22:08:48,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23461 states to 23461 states and 33460 transitions. [2019-12-07 22:08:48,307 INFO L78 Accepts]: Start accepts. Automaton has 23461 states and 33460 transitions. Word has length 41 [2019-12-07 22:08:48,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:48,307 INFO L462 AbstractCegarLoop]: Abstraction has 23461 states and 33460 transitions. [2019-12-07 22:08:48,307 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 22:08:48,307 INFO L276 IsEmpty]: Start isEmpty. Operand 23461 states and 33460 transitions. [2019-12-07 22:08:48,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-12-07 22:08:48,309 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:48,309 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1] [2019-12-07 22:08:48,509 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:08:48,510 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 22:08:48,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:48,510 INFO L82 PathProgramCache]: Analyzing trace with hash -809708433, now seen corresponding path program 2 times [2019-12-07 22:08:48,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:48,511 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846063783] [2019-12-07 22:08:48,511 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:48,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:48,594 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:48,594 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846063783] [2019-12-07 22:08:48,594 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924099027] [2019-12-07 22:08:48,594 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b01c260e-3504-426c-9b44-a6636ce24f71/bin/utaipan/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:08:48,621 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-12-07 22:08:48,621 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 22:08:48,622 INFO L264 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 22:08:48,623 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:08:48,627 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:48,627 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:08:48,664 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:48,664 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [164589916] [2019-12-07 22:08:48,665 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2019-12-07 22:08:48,665 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 22:08:48,665 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 22:08:48,666 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 22:08:48,666 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 22:08:48,704 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 22:08:49,046 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 22:08:49,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-12-07 22:08:49,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2019-12-07 22:08:49,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113481142] [2019-12-07 22:08:49,047 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 22:08:49,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:49,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 22:08:49,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=346, Unknown=0, NotChecked=0, Total=462 [2019-12-07 22:08:49,048 INFO L87 Difference]: Start difference. First operand 23461 states and 33460 transitions. Second operand 12 states. [2019-12-07 22:08:49,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:49,606 INFO L93 Difference]: Finished difference Result 84231 states and 123408 transitions. [2019-12-07 22:08:49,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-07 22:08:49,607 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 45 [2019-12-07 22:08:49,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:49,692 INFO L225 Difference]: With dead ends: 84231 [2019-12-07 22:08:49,692 INFO L226 Difference]: Without dead ends: 84229 [2019-12-07 22:08:49,708 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=116, Invalid=346, Unknown=0, NotChecked=0, Total=462 [2019-12-07 22:08:49,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84229 states. [2019-12-07 22:08:50,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84229 to 57499. [2019-12-07 22:08:50,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57499 states. [2019-12-07 22:08:50,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57499 states to 57499 states and 81004 transitions. [2019-12-07 22:08:50,511 INFO L78 Accepts]: Start accepts. Automaton has 57499 states and 81004 transitions. Word has length 45 [2019-12-07 22:08:50,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:50,511 INFO L462 AbstractCegarLoop]: Abstraction has 57499 states and 81004 transitions. [2019-12-07 22:08:50,511 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 22:08:50,511 INFO L276 IsEmpty]: Start isEmpty. Operand 57499 states and 81004 transitions. [2019-12-07 22:08:50,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-12-07 22:08:50,513 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:50,514 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1] [2019-12-07 22:08:50,714 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:08:50,715 INFO L410 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 22:08:50,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:50,716 INFO L82 PathProgramCache]: Analyzing trace with hash -85375778, now seen corresponding path program 2 times [2019-12-07 22:08:50,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:50,717 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298179898] [2019-12-07 22:08:50,717 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:50,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:50,768 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:50,768 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298179898] [2019-12-07 22:08:50,768 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441175701] [2019-12-07 22:08:50,768 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b01c260e-3504-426c-9b44-a6636ce24f71/bin/utaipan/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:08:50,790 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-12-07 22:08:50,790 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 22:08:50,791 INFO L264 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 22:08:50,792 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:08:50,797 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:50,797 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:08:50,838 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:50,838 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1746240342] [2019-12-07 22:08:50,839 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2019-12-07 22:08:50,839 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 22:08:50,839 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 22:08:50,839 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 22:08:50,839 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 22:08:50,876 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 22:08:51,059 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 30 [2019-12-07 22:08:51,416 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 22:08:51,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-12-07 22:08:51,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2019-12-07 22:08:51,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83824780] [2019-12-07 22:08:51,417 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 22:08:51,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:51,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 22:08:51,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2019-12-07 22:08:51,417 INFO L87 Difference]: Start difference. First operand 57499 states and 81004 transitions. Second operand 12 states. [2019-12-07 22:08:52,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:52,523 INFO L93 Difference]: Finished difference Result 164990 states and 234085 transitions. [2019-12-07 22:08:52,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-07 22:08:52,524 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 51 [2019-12-07 22:08:52,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:52,690 INFO L225 Difference]: With dead ends: 164990 [2019-12-07 22:08:52,691 INFO L226 Difference]: Without dead ends: 164989 [2019-12-07 22:08:52,714 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 127 SyntacticMatches, 10 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2019-12-07 22:08:52,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164989 states. [2019-12-07 22:08:54,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164989 to 92833. [2019-12-07 22:08:54,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92833 states. [2019-12-07 22:08:54,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92833 states to 92833 states and 130330 transitions. [2019-12-07 22:08:54,375 INFO L78 Accepts]: Start accepts. Automaton has 92833 states and 130330 transitions. Word has length 51 [2019-12-07 22:08:54,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:54,376 INFO L462 AbstractCegarLoop]: Abstraction has 92833 states and 130330 transitions. [2019-12-07 22:08:54,376 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 22:08:54,376 INFO L276 IsEmpty]: Start isEmpty. Operand 92833 states and 130330 transitions. [2019-12-07 22:08:54,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-12-07 22:08:54,384 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:54,384 INFO L410 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 1, 1] [2019-12-07 22:08:54,585 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:08:54,586 INFO L410 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 22:08:54,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:54,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1519696454, now seen corresponding path program 3 times [2019-12-07 22:08:54,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:54,587 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039739623] [2019-12-07 22:08:54,587 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:54,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:54,659 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2019-12-07 22:08:54,660 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039739623] [2019-12-07 22:08:54,660 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140443221] [2019-12-07 22:08:54,660 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b01c260e-3504-426c-9b44-a6636ce24f71/bin/utaipan/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:08:54,689 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-12-07 22:08:54,690 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 22:08:54,690 INFO L264 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 13 conjunts are in the unsatisfiable core [2019-12-07 22:08:54,692 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:08:54,802 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 375 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:54,803 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:08:54,916 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 375 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 22:08:54,917 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-12-07 22:08:54,917 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [3] total 26 [2019-12-07 22:08:54,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681745925] [2019-12-07 22:08:54,917 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-12-07 22:08:54,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:54,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-12-07 22:08:54,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=474, Unknown=0, NotChecked=0, Total=702 [2019-12-07 22:08:54,918 INFO L87 Difference]: Start difference. First operand 92833 states and 130330 transitions. Second operand 24 states. [2019-12-07 22:08:55,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:55,525 INFO L93 Difference]: Finished difference Result 110691 states and 154358 transitions. [2019-12-07 22:08:55,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 22:08:55,525 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 77 [2019-12-07 22:08:55,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:55,526 INFO L225 Difference]: With dead ends: 110691 [2019-12-07 22:08:55,526 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 22:08:55,583 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=228, Invalid=474, Unknown=0, NotChecked=0, Total=702 [2019-12-07 22:08:55,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 22:08:55,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 22:08:55,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 22:08:55,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 22:08:55,584 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 77 [2019-12-07 22:08:55,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:55,584 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 22:08:55,584 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-12-07 22:08:55,584 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 22:08:55,584 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 22:08:55,784 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:08:55,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 22:10:24,531 WARN L192 SmtUtils]: Spent 1.48 m on a formula simplification. DAG size of input: 7030 DAG size of output: 4055 [2019-12-07 22:12:24,084 WARN L192 SmtUtils]: Spent 1.99 m on a formula simplification. DAG size of input: 3535 DAG size of output: 403 [2019-12-07 22:12:24,088 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2019-12-07 22:12:24,089 INFO L246 CegarLoopResult]: For program point L27(lines 27 31) no Hoare annotation was computed. [2019-12-07 22:12:24,089 INFO L246 CegarLoopResult]: For program point L23(lines 23 31) no Hoare annotation was computed. [2019-12-07 22:12:24,089 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2019-12-07 22:12:24,089 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-12-07 22:12:24,089 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 22:12:24,089 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2019-12-07 22:12:24,089 INFO L246 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2019-12-07 22:12:24,089 INFO L246 CegarLoopResult]: For program point L28-1(line 28) no Hoare annotation was computed. [2019-12-07 22:12:24,089 INFO L246 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2019-12-07 22:12:24,089 INFO L246 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2019-12-07 22:12:24,090 INFO L246 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2019-12-07 22:12:24,090 INFO L246 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2019-12-07 22:12:24,090 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2019-12-07 22:12:24,090 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-12-07 22:12:24,090 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 22:12:24,090 INFO L246 CegarLoopResult]: For program point L29(lines 29 31) no Hoare annotation was computed. [2019-12-07 22:12:24,090 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2019-12-07 22:12:24,090 INFO L246 CegarLoopResult]: For program point L25(lines 25 31) no Hoare annotation was computed. [2019-12-07 22:12:24,090 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2019-12-07 22:12:24,090 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2019-12-07 22:12:24,090 INFO L246 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2019-12-07 22:12:24,090 INFO L246 CegarLoopResult]: For program point L30-1(line 30) no Hoare annotation was computed. [2019-12-07 22:12:24,090 INFO L246 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2019-12-07 22:12:24,091 INFO L246 CegarLoopResult]: For program point L26-1(line 26) no Hoare annotation was computed. [2019-12-07 22:12:24,091 INFO L246 CegarLoopResult]: For program point L22(lines 22 32) no Hoare annotation was computed. [2019-12-07 22:12:24,093 INFO L242 CegarLoopResult]: At program point L22-1(lines 19 33) the Hoare annotation is: (let ((.cse55 (+ ULTIMATE.start_main_~y~0 2147483647)) (.cse54 (+ ULTIMATE.start_main_~x~0 2147483647))) (let ((.cse51 (<= ULTIMATE.start_main_~y~0 2147483646)) (.cse53 (<= 1 ULTIMATE.start_main_~i~0)) (.cse48 (<= 0 .cse54)) (.cse46 (<= ULTIMATE.start_main_~x~0 2147483646)) (.cse29 (< 0 (+ ULTIMATE.start_main_~x~0 2147483645))) (.cse7 (<= ULTIMATE.start_main_~y~0 4)) (.cse30 (< 0 (+ ULTIMATE.start_main_~y~0 2147483644))) (.cse12 (< ULTIMATE.start_main_~y~0 2147483645)) (.cse45 (< 0 (+ ULTIMATE.start_main_~y~0 2147483646))) (.cse27 (< ULTIMATE.start_main_~y~0 2147483646)) (.cse18 (< 0 (+ ULTIMATE.start_main_~x~0 2147483644))) (.cse49 (< 0 .cse55)) (.cse34 (< ULTIMATE.start_main_~y~0 2147483643)) (.cse22 (< ULTIMATE.start_main_~x~0 2147483645)) (.cse1 (<= 0 (+ ULTIMATE.start_main_~x~0 1))) (.cse13 (<= 0 (+ ULTIMATE.start_main_~x~0 2))) (.cse43 (< 0 (+ ULTIMATE.start_main_~x~0 2147483646))) (.cse9 (<= 5 ULTIMATE.start_main_~i~0)) (.cse11 (<= 9 ULTIMATE.start_main_~i~0)) (.cse38 (< ULTIMATE.start_main_~x~0 2147483646)) (.cse47 (< 0 (+ ULTIMATE.start_main_~y~0 2147483645))) (.cse37 (<= 4 ULTIMATE.start_main_~i~0)) (.cse20 (<= 0 (+ ULTIMATE.start_main_~y~0 1))) (.cse40 (< ULTIMATE.start_main_~x~0 2147483643)) (.cse39 (<= ULTIMATE.start_main_~x~0 3)) (.cse16 (<= ULTIMATE.start_main_~y~0 3)) (.cse19 (<= 6 ULTIMATE.start_main_~i~0)) (.cse50 (<= 2 ULTIMATE.start_main_~i~0)) (.cse33 (<= 0 (+ ULTIMATE.start_main_~x~0 4))) (.cse23 (<= 0 (+ ULTIMATE.start_main_~y~0 3))) (.cse21 (<= 10 ULTIMATE.start_main_~i~0)) (.cse35 (<= 0 .cse55)) (.cse0 (<= ULTIMATE.start_main_~y~0 2)) (.cse2 (<= 3 ULTIMATE.start_main_~i~0)) (.cse8 (<= ULTIMATE.start_main_~x~0 1)) (.cse31 (<= 0 (+ ULTIMATE.start_main_~y~0 2))) (.cse28 (<= 0 (+ ULTIMATE.start_main_~x~0 3))) (.cse15 (< ULTIMATE.start_main_~x~0 2147483644)) (.cse36 (<= ULTIMATE.start_main_~y~0 1)) (.cse25 (<= 7 ULTIMATE.start_main_~i~0)) (.cse52 (< 0 .cse54)) (.cse4 (<= ULTIMATE.start_main_~x~0 0)) (.cse41 (< ULTIMATE.start_main_~y~0 2147483644)) (.cse42 (<= ULTIMATE.start_main_~x~0 2)) (.cse6 (<= 0 ULTIMATE.start_main_~y~0)) (.cse32 (<= ULTIMATE.start_main_~x~0 4)) (.cse17 (<= ULTIMATE.start_main_~y~0 0)) (.cse24 (<= 0 (+ ULTIMATE.start_main_~y~0 4))) (.cse3 (<= ULTIMATE.start_main_~N~0 10)) (.cse44 (<= 0 (+ ULTIMATE.start_main_~y~0 2147483648))) (.cse26 (<= 8 ULTIMATE.start_main_~i~0)) (.cse5 (<= ULTIMATE.start_main_~i~0 2147483646)) (.cse10 (<= 0 ULTIMATE.start_main_~x~0)) (.cse14 (<= 0 ULTIMATE.start_main_~i~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse3 .cse8 .cse9 .cse5 .cse10 .cse6) (and .cse11 .cse12 .cse3 .cse4 .cse13 .cse5 .cse6 .cse14) (and .cse11 .cse15 .cse16 .cse3 .cse5 .cse10 .cse6) (and .cse17 .cse18 .cse3 .cse4 .cse19 .cse20 .cse5) (and .cse21 .cse17 .cse3 .cse22 .cse23 .cse5 .cse10) (and .cse24 .cse17 .cse3 .cse8 .cse9 .cse5 .cse10) (and .cse12 .cse3 .cse25 .cse4 .cse5 .cse10 .cse6) (and .cse3 .cse4 .cse26 .cse27 .cse5 .cse10 .cse6) (and .cse16 .cse3 .cse4 .cse28 .cse5 .cse19 .cse6) (and .cse11 .cse3 .cse16 .cse4 .cse5 .cse29 .cse6) (and .cse30 .cse17 .cse3 .cse8 .cse5 .cse19 .cse10) (and .cse21 .cse24 .cse17 .cse3 .cse4 .cse5 .cse29) (and .cse17 .cse3 .cse31 .cse4 .cse26 .cse5 .cse29) (and .cse17 .cse3 .cse4 .cse29 .cse19 .cse5 .cse6) (and .cse32 .cse17 .cse3 .cse9 .cse5 .cse20 .cse10) (and .cse33 .cse17 .cse3 .cse4 .cse9 .cse20 .cse5) (and .cse21 .cse3 .cse18 .cse34 .cse4 .cse5 .cse6) (and .cse0 .cse3 .cse4 .cse26 .cse5 .cse29 .cse6) (and .cse21 .cse1 .cse17 .cse3 .cse35 .cse4 .cse5) (and .cse36 .cse3 .cse26 .cse22 .cse5 .cse10 .cse6) (and .cse11 .cse17 .cse3 .cse35 .cse4 .cse5 .cse10) (and .cse1 .cse17 .cse3 .cse4 .cse23 .cse5 .cse37) (and .cse21 .cse17 .cse3 .cse31 .cse38 .cse5 .cse10) (and .cse21 .cse17 .cse30 .cse18 .cse3 .cse4 .cse5) (and .cse21 (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648)) .cse17 .cse3 .cse5 .cse6) (and .cse39 .cse34 .cse3 .cse26 .cse5 .cse6 .cse10) (and .cse17 .cse3 .cse40 .cse26 .cse23 .cse5 .cse10) (and .cse21 .cse7 .cse3 .cse4 .cse5 .cse29 .cse6) (and .cse17 .cse24 .cse3 .cse4 .cse5 .cse37 .cse10) (and .cse3 .cse16 .cse4 .cse13 .cse9 .cse5 .cse6) (and .cse41 .cse3 .cse26 .cse4 .cse13 .cse5 .cse6 .cse14) (and .cse36 .cse33 .cse3 .cse4 .cse9 .cse5 .cse6) (and .cse7 .cse3 .cse4 .cse13 .cse5 .cse19 .cse6 .cse14) (and .cse34 .cse3 .cse25 .cse42 .cse5 .cse6 .cse10) (and .cse39 .cse24 .cse17 .cse3 .cse25 .cse5 .cse10) (and .cse36 .cse3 .cse26 .cse4 .cse43 .cse5 .cse6) (and .cse21 .cse17 .cse3 .cse4 .cse44 .cse28 .cse45 .cse5 .cse14) (and .cse1 .cse30 .cse17 .cse3 .cse4 .cse19 .cse5) (and .cse34 .cse3 .cse26 .cse4 .cse28 .cse5 .cse6) (and .cse21 .cse3 .cse4 .cse13 .cse27 .cse5 .cse6 .cse14) (and .cse0 .cse32 .cse3 .cse5 .cse19 .cse10 .cse6) (and .cse1 .cse17 .cse2 .cse3 .cse31 .cse4 .cse5) (and .cse11 .cse15 .cse17 .cse3 .cse44 .cse23 .cse5 .cse10 .cse14) (and .cse15 .cse17 .cse3 .cse25 .cse5 .cse20 .cse10) (and .cse21 .cse36 .cse3 .cse5 .cse10 .cse6 .cse46) (and .cse17 .cse3 .cse25 .cse8 .cse47 .cse5 .cse10) (and .cse21 .cse17 .cse3 .cse4 .cse20 .cse5 .cse48) (and .cse11 .cse39 .cse41 .cse3 .cse5 .cse6 .cse10) (and .cse21 .cse17 .cse49 .cse3 .cse44 .cse42 .cse5 .cse10 .cse14) (and .cse17 .cse3 .cse44 .cse42 .cse23 .cse9 .cse5 .cse10 .cse14) (and .cse1 .cse12 .cse3 .cse26 .cse4 .cse5 .cse6) (and .cse11 .cse17 .cse24 .cse18 .cse3 .cse4 .cse5) (and .cse0 .cse3 .cse42 .cse5 .cse37 .cse10 .cse6) (and .cse21 .cse30 .cse17 .cse3 .cse40 .cse44 .cse5 .cse10 .cse14) (and .cse21 .cse3 .cse4 .cse44 .cse5 .cse10) (and .cse17 .cse3 .cse8 .cse50 .cse5 .cse20 .cse10) (and .cse17 .cse3 .cse4 .cse47 .cse5 .cse19 .cse10) (and .cse17 .cse3 .cse26 .cse47 .cse44 .cse42 .cse5 .cse10 .cse14) (and .cse39 .cse30 .cse17 .cse3 .cse26 .cse5 .cse10) (and .cse36 .cse3 .cse40 .cse5 .cse19 .cse10 .cse6) (and .cse11 .cse7 .cse3 .cse18 .cse4 .cse5 .cse6) (and .cse11 .cse24 .cse17 .cse3 .cse40 .cse44 .cse5 .cse10 .cse14) (and .cse0 .cse3 .cse4 .cse13 .cse5 .cse37 .cse6) (and .cse11 .cse17 .cse3 .cse4 .cse5 .cse6 .cse48) (and .cse33 .cse17 .cse3 .cse4 .cse37 .cse5 .cse6) (and .cse3 .cse18 .cse16 .cse4 .cse26 .cse5 .cse6) (and .cse17 .cse18 .cse3 .cse4 .cse26 .cse23 .cse5) (and .cse11 .cse36 .cse3 .cse38 .cse5 .cse10 .cse6) (and .cse16 .cse3 .cse42 .cse9 .cse5 .cse6 .cse10) (and .cse21 .cse34 .cse3 .cse40 .cse5 .cse6 .cse10) (and .cse11 .cse17 .cse3 .cse31 .cse22 .cse5 .cse10) (and .cse17 .cse3 .cse25 .cse22 .cse5 .cse10 .cse6) (and .cse17 .cse3 .cse26 .cse22 .cse5 .cse20 .cse10) (and .cse11 .cse1 .cse3 .cse4 .cse27 .cse5 .cse6) (and .cse17 .cse2 .cse3 .cse13 .cse4 .cse20 .cse5) (and .cse21 .cse3 .cse8 .cse51 .cse5 .cse10 .cse6) (and .cse15 .cse0 .cse3 .cse26 .cse5 .cse10 .cse6) (and .cse39 .cse36 .cse3 .cse5 .cse37 .cse10 .cse6) (and .cse1 .cse24 .cse17 .cse3 .cse4 .cse9 .cse5) (and .cse11 .cse3 .cse4 .cse51 .cse5 .cse10 .cse6) (and .cse7 .cse32 .cse3 .cse26 .cse5 .cse10 .cse6) (and .cse17 .cse18 .cse3 .cse25 .cse31 .cse4 .cse5) (and .cse33 .cse7 .cse3 .cse26 .cse4 .cse5 .cse6) (and .cse36 .cse3 .cse25 .cse4 .cse5 .cse29 .cse6) (and .cse39 .cse7 .cse3 .cse25 .cse5 .cse6 .cse10) (and .cse3 .cse16 .cse8 .cse5 .cse37 .cse6 .cse10) (and .cse17 .cse3 .cse50 .cse13 .cse4 .cse5 .cse6) (and .cse41 .cse3 .cse4 .cse5 .cse19 .cse10 .cse6) (and .cse11 .cse32 .cse17 .cse30 .cse3 .cse44 .cse5 .cse10 .cse14) (and .cse11 .cse36 .cse52 .cse3 .cse4 .cse5 .cse6) (and .cse11 .cse0 .cse3 .cse4 .cse43 .cse5 .cse6) (and .cse30 .cse17 .cse3 .cse25 .cse44 .cse42 .cse5 .cse10 .cse14) (and .cse17 .cse3 .cse8 .cse23 .cse5 .cse37 .cse10) (and .cse11 .cse33 .cse3 .cse34 .cse4 .cse5 .cse6) (and .cse53 .cse36 .cse3 .cse4 .cse5 .cse10 .cse6) (and .cse21 .cse17 .cse3 .cse5 .cse20 .cse10 .cse46) (and .cse41 .cse3 .cse25 .cse8 .cse5 .cse10 .cse6) (and .cse32 .cse16 .cse3 .cse25 .cse5 .cse10 .cse6) (and .cse21 .cse1 .cse3 .cse4 .cse51 .cse5 .cse6) (and .cse0 .cse18 .cse3 .cse25 .cse4 .cse5 .cse6) (and .cse17 .cse3 .cse40 .cse9 .cse5 .cse10 .cse6) (and .cse36 .cse3 .cse4 .cse28 .cse5 .cse37 .cse6) (and .cse17 .cse3 .cse25 .cse4 .cse43 .cse5 .cse6) (and .cse1 .cse16 .cse3 .cse4 .cse5 .cse37 .cse6) (and .cse7 .cse3 .cse25 .cse4 .cse28 .cse5 .cse6) (and .cse17 .cse3 .cse4 .cse28 .cse20 .cse5 .cse37) (and .cse1 .cse7 .cse3 .cse4 .cse9 .cse5 .cse6) (and .cse21 .cse0 .cse52 .cse3 .cse4 .cse5 .cse6) (and .cse39 .cse17 .cse3 .cse31 .cse9 .cse5 .cse10) (and .cse1 .cse17 .cse3 .cse26 .cse4 .cse45 .cse5) (and .cse36 .cse2 .cse3 .cse42 .cse5 .cse6 .cse10) (and .cse17 .cse30 .cse3 .cse4 .cse9 .cse5 .cse10) (and .cse17 .cse2 .cse3 .cse8 .cse31 .cse5 .cse10) (and .cse39 .cse21 .cse17 .cse3 .cse45 .cse5 .cse10) (and .cse11 .cse17 .cse49 .cse3 .cse8 .cse5 .cse10) (and .cse21 .cse12 .cse3 .cse4 .cse28 .cse5 .cse6) (and .cse11 .cse17 .cse3 .cse4 .cse31 .cse43 .cse5) (and .cse7 .cse3 .cse4 .cse5 .cse37 .cse10 .cse6) (and .cse21 .cse17 .cse52 .cse3 .cse31 .cse4 .cse5) (and .cse1 .cse41 .cse3 .cse25 .cse4 .cse5 .cse6) (and .cse24 .cse17 .cse3 .cse44 .cse42 .cse5 .cse19 .cse10 .cse14) (and .cse15 .cse21 .cse7 .cse3 .cse5 .cse10 .cse6) (and .cse33 .cse16 .cse3 .cse25 .cse4 .cse5 .cse6) (and .cse36 .cse3 .cse8 .cse50 .cse5 .cse10 .cse6) (and .cse17 .cse3 .cse4 .cse5 .cse10 .cse6 .cse14) (and .cse39 .cse21 .cse12 .cse3 .cse5 .cse6 .cse10) (and .cse17 .cse2 .cse3 .cse42 .cse5 .cse20 .cse10) (and .cse11 .cse3 .cse8 .cse27 .cse5 .cse10 .cse6) (and .cse0 .cse33 .cse3 .cse4 .cse19 .cse5 .cse6) (and .cse17 .cse3 .cse13 .cse4 .cse44 .cse23 .cse9 .cse5 .cse14) (and .cse36 .cse32 .cse3 .cse9 .cse5 .cse10 .cse6) (and .cse17 .cse3 .cse13 .cse4 .cse44 .cse26 .cse47 .cse5 .cse14) (and .cse17 .cse3 .cse4 .cse28 .cse23 .cse5 .cse19) (and .cse36 .cse2 .cse3 .cse13 .cse4 .cse5 .cse6) (and .cse21 .cse0 .cse3 .cse38 .cse5 .cse10 .cse6) (and .cse11 .cse17 .cse52 .cse3 .cse4 .cse20 .cse5) (and .cse15 .cse21 .cse17 .cse24 .cse3 .cse44 .cse5 .cse10 .cse14) (and .cse53 .cse1 .cse17 .cse3 .cse4 .cse5 .cse6) (and .cse21 .cse33 .cse17 .cse3 .cse4 .cse44 .cse47 .cse5 .cse14) (and .cse17 .cse2 .cse3 .cse4 .cse23 .cse5 .cse10) (and .cse33 .cse24 .cse17 .cse3 .cse4 .cse44 .cse26 .cse5 .cse14) (and .cse34 .cse3 .cse8 .cse5 .cse19 .cse10 .cse6) (and .cse11 .cse17 .cse3 .cse44 .cse42 .cse45 .cse5 .cse10 .cse14) (and .cse11 .cse12 .cse3 .cse42 .cse5 .cse6 .cse10) (and .cse17 .cse3 .cse25 .cse4 .cse29 .cse20 .cse5) (and .cse39 .cse17 .cse3 .cse23 .cse5 .cse19 .cse10) (and .cse30 .cse17 .cse3 .cse25 .cse13 .cse4 .cse44 .cse5 .cse14) (and .cse1 .cse17 .cse3 .cse25 .cse47 .cse4 .cse5) (and .cse53 .cse17 .cse3 .cse4 .cse5 .cse20 .cse10) (and .cse21 .cse33 .cse41 .cse3 .cse4 .cse5 .cse6) (and .cse53 .cse17 .cse3 .cse8 .cse5 .cse10 .cse6) (and .cse32 .cse17 .cse3 .cse25 .cse35 .cse23 .cse5 .cse10 .cse14) (and .cse39 .cse17 .cse2 .cse3 .cse5 .cse10 .cse6) (and .cse17 .cse3 .cse8 .cse26 .cse45 .cse5 .cse10) (and .cse17 .cse3 .cse25 .cse4 .cse45 .cse5 .cse10) (and .cse17 .cse18 .cse3 .cse4 .cse9 .cse5 .cse6) (and .cse33 .cse17 .cse3 .cse4 .cse44 .cse31 .cse5 .cse19 .cse14) (and .cse11 .cse33 .cse30 .cse17 .cse3 .cse4 .cse44 .cse5 .cse14) (and .cse21 .cse17 .cse3 .cse4 .cse43 .cse23 .cse5) (and .cse11 .cse39 .cse17 .cse3 .cse47 .cse5 .cse10) (and .cse17 .cse3 .cse26 .cse4 .cse43 .cse20 .cse5) (and .cse21 .cse36 .cse3 .cse4 .cse5 .cse6 .cse48) (and .cse2 .cse3 .cse16 .cse4 .cse5 .cse10 .cse6) (and .cse17 .cse3 .cse50 .cse42 .cse5 .cse10 .cse6) (and .cse0 .cse3 .cse25 .cse40 .cse5 .cse10 .cse6) (and .cse11 .cse17 .cse3 .cse5 .cse10 .cse6 .cse46) (and .cse24 .cse17 .cse3 .cse13 .cse4 .cse44 .cse5 .cse19 .cse14) (and .cse17 .cse3 .cse26 .cse38 .cse5 .cse10 .cse6) (and .cse11 .cse17 .cse3 .cse4 .cse23 .cse5 .cse29) (and .cse34 .cse3 .cse4 .cse9 .cse5 .cse10 .cse6) (and .cse32 .cse17 .cse3 .cse35 .cse31 .cse5 .cse19 .cse10 .cse14) (and .cse11 .cse32 .cse3 .cse34 .cse5 .cse10 .cse6) (and .cse36 .cse1 .cse3 .cse50 .cse4 .cse5 .cse6) (and .cse7 .cse3 .cse42 .cse5 .cse19 .cse6 .cse10) (and .cse11 .cse7 .cse3 .cse40 .cse5 .cse6 .cse10) (and .cse34 .cse3 .cse25 .cse4 .cse13 .cse5 .cse6 .cse14) (and .cse21 .cse16 .cse3 .cse22 .cse5 .cse10 .cse6) (and .cse11 .cse1 .cse17 .cse49 .cse3 .cse4 .cse5) (and .cse21 .cse32 .cse41 .cse3 .cse5 .cse10 .cse6) (and .cse17 .cse30 .cse3 .cse4 .cse44 .cse26 .cse28 .cse5 .cse14) (and .cse12 .cse3 .cse8 .cse26 .cse5 .cse10 .cse6) (and .cse17 .cse49 .cse3 .cse4 .cse26 .cse5 .cse10) (and .cse11 .cse17 .cse3 .cse13 .cse4 .cse44 .cse45 .cse5 .cse14) (and .cse21 .cse3 .cse42 .cse27 .cse5 .cse6 .cse10) (and .cse17 .cse3 .cse31 .cse4 .cse28 .cse9 .cse5) (and .cse36 .cse18 .cse3 .cse4 .cse5 .cse19 .cse6) (and .cse21 .cse17 .cse49 .cse3 .cse13 .cse4 .cse44 .cse5 .cse14) (and .cse11 .cse17 .cse3 .cse4 .cse44 .cse47 .cse28 .cse5 .cse14) (and .cse1 .cse3 .cse34 .cse4 .cse5 .cse19 .cse6) (and .cse11 .cse0 .cse3 .cse22 .cse5 .cse10 .cse6) (and .cse17 .cse3 .cse40 .cse19 .cse5 .cse20 .cse10) (and .cse1 .cse17 .cse3 .cse50 .cse4 .cse5 .cse20) (and .cse17 .cse3 .cse31 .cse42 .cse5 .cse37 .cse10) (and .cse17 .cse3 .cse13 .cse4 .cse44 .cse31 .cse5 .cse37 .cse14) (and .cse21 .cse16 .cse3 .cse4 .cse43 .cse5 .cse6) (and .cse32 .cse17 .cse3 .cse5 .cse37 .cse10 .cse6) (and .cse11 .cse41 .cse3 .cse4 .cse28 .cse5 .cse6) (and .cse17 .cse2 .cse3 .cse4 .cse28 .cse5 .cse6) (and .cse39 .cse0 .cse3 .cse9 .cse5 .cse10 .cse6) (and .cse0 .cse3 .cse4 .cse28 .cse9 .cse5 .cse6) (and .cse11 .cse17 .cse3 .cse38 .cse5 .cse20 .cse10) (and .cse21 .cse32 .cse17 .cse3 .cse44 .cse47 .cse5 .cse10 .cse14) (and .cse39 .cse17 .cse3 .cse5 .cse37 .cse20 .cse10) (and .cse17 .cse3 .cse25 .cse31 .cse40 .cse44 .cse5 .cse10 .cse14) (and .cse15 .cse17 .cse3 .cse5 .cse19 .cse10 .cse6) (and .cse16 .cse3 .cse26 .cse40 .cse5 .cse10 .cse6) (and .cse0 .cse3 .cse50 .cse4 .cse5 .cse10 .cse6) (and .cse39 .cse16 .cse3 .cse5 .cse19 .cse10 .cse6) (and .cse17 .cse3 .cse50 .cse4 .cse31 .cse5 .cse10) (and .cse33 .cse17 .cse3 .cse25 .cse4 .cse44 .cse23 .cse5 .cse14) (and .cse21 .cse17 .cse3 .cse35 .cse8 .cse5 .cse10) (and .cse0 .cse2 .cse3 .cse8 .cse5 .cse10 .cse6) (and .cse15 .cse17 .cse3 .cse31 .cse26 .cse5 .cse10) (and .cse17 .cse24 .cse3 .cse25 .cse4 .cse44 .cse28 .cse5 .cse14) (and .cse15 .cse36 .cse3 .cse25 .cse5 .cse10 .cse6) (and .cse17 .cse52 .cse3 .cse26 .cse4 .cse5 .cse6) (and .cse41 .cse3 .cse26 .cse42 .cse5 .cse6 .cse10) (and .cse32 .cse17 .cse24 .cse3 .cse44 .cse26 .cse5 .cse10 .cse14)))) [2019-12-07 22:12:24,093 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2019-12-07 22:12:24,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 10:12:24 BoogieIcfgContainer [2019-12-07 22:12:24,143 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 22:12:24,143 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 22:12:24,143 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 22:12:24,143 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 22:12:24,144 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:08:40" (3/4) ... [2019-12-07 22:12:24,146 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 22:12:24,153 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-12-07 22:12:24,153 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 22:12:24,153 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 22:12:24,199 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b01c260e-3504-426c-9b44-a6636ce24f71/bin/utaipan/witness.graphml [2019-12-07 22:12:24,199 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 22:12:24,200 INFO L168 Benchmark]: Toolchain (without parser) took 224290.32 ms. Allocated memory was 1.0 GB in the beginning and 3.0 GB in the end (delta: 2.0 GB). Free memory was 945.1 MB in the beginning and 1.9 GB in the end (delta: -1.0 GB). Peak memory consumption was 968.0 MB. Max. memory is 11.5 GB. [2019-12-07 22:12:24,200 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 22:12:24,201 INFO L168 Benchmark]: CACSL2BoogieTranslator took 179.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 945.1 MB in the beginning and 1.1 GB in the end (delta: -181.2 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 22:12:24,201 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.33 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 22:12:24,201 INFO L168 Benchmark]: Boogie Preprocessor took 12.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-07 22:12:24,201 INFO L168 Benchmark]: RCFGBuilder took 170.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-12-07 22:12:24,202 INFO L168 Benchmark]: TraceAbstraction took 223847.69 ms. Allocated memory was 1.2 GB in the beginning and 3.0 GB in the end (delta: 1.8 GB). Free memory was 1.1 GB in the beginning and 2.0 GB in the end (delta: -858.1 MB). Peak memory consumption was 4.7 GB. Max. memory is 11.5 GB. [2019-12-07 22:12:24,202 INFO L168 Benchmark]: Witness Printer took 56.11 ms. Allocated memory is still 3.0 GB. Free memory was 2.0 GB in the beginning and 1.9 GB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2019-12-07 22:12:24,203 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 179.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 945.1 MB in the beginning and 1.1 GB in the end (delta: -181.2 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.33 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 170.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 223847.69 ms. Allocated memory was 1.2 GB in the beginning and 3.0 GB in the end (delta: 1.8 GB). Free memory was 1.1 GB in the beginning and 2.0 GB in the end (delta: -858.1 MB). Peak memory consumption was 4.7 GB. Max. memory is 11.5 GB. * Witness Printer took 56.11 ms. Allocated memory is still 3.0 GB. Free memory was 2.0 GB in the beginning and 1.9 GB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: 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: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((y <= 2 && 0 <= x + 1) && 3 <= i) && N <= 10) && x <= 0) && i <= 2147483646) && 0 <= y) || ((((((y <= 4 && N <= 10) && x <= 1) && 5 <= i) && i <= 2147483646) && 0 <= x) && 0 <= y)) || (((((((9 <= i && y < 2147483645) && N <= 10) && x <= 0) && 0 <= x + 2) && i <= 2147483646) && 0 <= y) && 0 <= i)) || ((((((9 <= i && x < 2147483644) && y <= 3) && N <= 10) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((y <= 0 && 0 < x + 2147483644) && N <= 10) && x <= 0) && 6 <= i) && 0 <= y + 1) && i <= 2147483646)) || ((((((10 <= i && y <= 0) && N <= 10) && x < 2147483645) && 0 <= y + 3) && i <= 2147483646) && 0 <= x)) || ((((((0 <= y + 4 && y <= 0) && N <= 10) && x <= 1) && 5 <= i) && i <= 2147483646) && 0 <= x)) || ((((((y < 2147483645 && N <= 10) && 7 <= i) && x <= 0) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((N <= 10 && x <= 0) && 8 <= i) && y < 2147483646) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((y <= 3 && N <= 10) && x <= 0) && 0 <= x + 3) && i <= 2147483646) && 6 <= i) && 0 <= y)) || ((((((9 <= i && N <= 10) && y <= 3) && x <= 0) && i <= 2147483646) && 0 < x + 2147483645) && 0 <= y)) || ((((((0 < y + 2147483644 && y <= 0) && N <= 10) && x <= 1) && i <= 2147483646) && 6 <= i) && 0 <= x)) || ((((((10 <= i && 0 <= y + 4) && y <= 0) && N <= 10) && x <= 0) && i <= 2147483646) && 0 < x + 2147483645)) || ((((((y <= 0 && N <= 10) && 0 <= y + 2) && x <= 0) && 8 <= i) && i <= 2147483646) && 0 < x + 2147483645)) || ((((((y <= 0 && N <= 10) && x <= 0) && 0 < x + 2147483645) && 6 <= i) && i <= 2147483646) && 0 <= y)) || ((((((x <= 4 && y <= 0) && N <= 10) && 5 <= i) && i <= 2147483646) && 0 <= y + 1) && 0 <= x)) || ((((((0 <= x + 4 && y <= 0) && N <= 10) && x <= 0) && 5 <= i) && 0 <= y + 1) && i <= 2147483646)) || ((((((10 <= i && N <= 10) && 0 < x + 2147483644) && y < 2147483643) && x <= 0) && i <= 2147483646) && 0 <= y)) || ((((((y <= 2 && N <= 10) && x <= 0) && 8 <= i) && i <= 2147483646) && 0 < x + 2147483645) && 0 <= y)) || ((((((10 <= i && 0 <= x + 1) && y <= 0) && N <= 10) && 0 <= y + 2147483647) && x <= 0) && i <= 2147483646)) || ((((((y <= 1 && N <= 10) && 8 <= i) && x < 2147483645) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((9 <= i && y <= 0) && N <= 10) && 0 <= y + 2147483647) && x <= 0) && i <= 2147483646) && 0 <= x)) || ((((((0 <= x + 1 && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 3) && i <= 2147483646) && 4 <= i)) || ((((((10 <= i && y <= 0) && N <= 10) && 0 <= y + 2) && x < 2147483646) && i <= 2147483646) && 0 <= x)) || ((((((10 <= i && y <= 0) && 0 < y + 2147483644) && 0 < x + 2147483644) && N <= 10) && x <= 0) && i <= 2147483646)) || (((((10 <= i && 0 <= x + 2147483648) && y <= 0) && N <= 10) && i <= 2147483646) && 0 <= y)) || ((((((x <= 3 && y < 2147483643) && N <= 10) && 8 <= i) && i <= 2147483646) && 0 <= y) && 0 <= x)) || ((((((y <= 0 && N <= 10) && x < 2147483643) && 8 <= i) && 0 <= y + 3) && i <= 2147483646) && 0 <= x)) || ((((((10 <= i && y <= 4) && N <= 10) && x <= 0) && i <= 2147483646) && 0 < x + 2147483645) && 0 <= y)) || ((((((y <= 0 && 0 <= y + 4) && N <= 10) && x <= 0) && i <= 2147483646) && 4 <= i) && 0 <= x)) || ((((((N <= 10 && y <= 3) && x <= 0) && 0 <= x + 2) && 5 <= i) && i <= 2147483646) && 0 <= y)) || (((((((y < 2147483644 && N <= 10) && 8 <= i) && x <= 0) && 0 <= x + 2) && i <= 2147483646) && 0 <= y) && 0 <= i)) || ((((((y <= 1 && 0 <= x + 4) && N <= 10) && x <= 0) && 5 <= i) && i <= 2147483646) && 0 <= y)) || (((((((y <= 4 && N <= 10) && x <= 0) && 0 <= x + 2) && i <= 2147483646) && 6 <= i) && 0 <= y) && 0 <= i)) || ((((((y < 2147483643 && N <= 10) && 7 <= i) && x <= 2) && i <= 2147483646) && 0 <= y) && 0 <= x)) || ((((((x <= 3 && 0 <= y + 4) && y <= 0) && N <= 10) && 7 <= i) && i <= 2147483646) && 0 <= x)) || ((((((y <= 1 && N <= 10) && 8 <= i) && x <= 0) && 0 < x + 2147483646) && i <= 2147483646) && 0 <= y)) || ((((((((10 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 2147483648) && 0 <= x + 3) && 0 < y + 2147483646) && i <= 2147483646) && 0 <= i)) || ((((((0 <= x + 1 && 0 < y + 2147483644) && y <= 0) && N <= 10) && x <= 0) && 6 <= i) && i <= 2147483646)) || ((((((y < 2147483643 && N <= 10) && 8 <= i) && x <= 0) && 0 <= x + 3) && i <= 2147483646) && 0 <= y)) || (((((((10 <= i && N <= 10) && x <= 0) && 0 <= x + 2) && y < 2147483646) && i <= 2147483646) && 0 <= y) && 0 <= i)) || ((((((y <= 2 && x <= 4) && N <= 10) && i <= 2147483646) && 6 <= i) && 0 <= x) && 0 <= y)) || ((((((0 <= x + 1 && y <= 0) && 3 <= i) && N <= 10) && 0 <= y + 2) && x <= 0) && i <= 2147483646)) || ((((((((9 <= i && x < 2147483644) && y <= 0) && N <= 10) && 0 <= y + 2147483648) && 0 <= y + 3) && i <= 2147483646) && 0 <= x) && 0 <= i)) || ((((((x < 2147483644 && y <= 0) && N <= 10) && 7 <= i) && i <= 2147483646) && 0 <= y + 1) && 0 <= x)) || ((((((10 <= i && y <= 1) && N <= 10) && i <= 2147483646) && 0 <= x) && 0 <= y) && x <= 2147483646)) || ((((((y <= 0 && N <= 10) && 7 <= i) && x <= 1) && 0 < y + 2147483645) && i <= 2147483646) && 0 <= x)) || ((((((10 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 1) && i <= 2147483646) && 0 <= x + 2147483647)) || ((((((9 <= i && x <= 3) && y < 2147483644) && N <= 10) && i <= 2147483646) && 0 <= y) && 0 <= x)) || ((((((((10 <= i && y <= 0) && 0 < y + 2147483647) && N <= 10) && 0 <= y + 2147483648) && x <= 2) && i <= 2147483646) && 0 <= x) && 0 <= i)) || ((((((((y <= 0 && N <= 10) && 0 <= y + 2147483648) && x <= 2) && 0 <= y + 3) && 5 <= i) && i <= 2147483646) && 0 <= x) && 0 <= i)) || ((((((0 <= x + 1 && y < 2147483645) && N <= 10) && 8 <= i) && x <= 0) && i <= 2147483646) && 0 <= y)) || ((((((9 <= i && y <= 0) && 0 <= y + 4) && 0 < x + 2147483644) && N <= 10) && x <= 0) && i <= 2147483646)) || ((((((y <= 2 && N <= 10) && x <= 2) && i <= 2147483646) && 4 <= i) && 0 <= x) && 0 <= y)) || ((((((((10 <= i && 0 < y + 2147483644) && y <= 0) && N <= 10) && x < 2147483643) && 0 <= y + 2147483648) && i <= 2147483646) && 0 <= x) && 0 <= i)) || (((((10 <= i && N <= 10) && x <= 0) && 0 <= y + 2147483648) && i <= 2147483646) && 0 <= x)) || ((((((y <= 0 && N <= 10) && x <= 1) && 2 <= i) && i <= 2147483646) && 0 <= y + 1) && 0 <= x)) || ((((((y <= 0 && N <= 10) && x <= 0) && 0 < y + 2147483645) && i <= 2147483646) && 6 <= i) && 0 <= x)) || ((((((((y <= 0 && N <= 10) && 8 <= i) && 0 < y + 2147483645) && 0 <= y + 2147483648) && x <= 2) && i <= 2147483646) && 0 <= x) && 0 <= i)) || ((((((x <= 3 && 0 < y + 2147483644) && y <= 0) && N <= 10) && 8 <= i) && i <= 2147483646) && 0 <= x)) || ((((((y <= 1 && N <= 10) && x < 2147483643) && i <= 2147483646) && 6 <= i) && 0 <= x) && 0 <= y)) || ((((((9 <= i && y <= 4) && N <= 10) && 0 < x + 2147483644) && x <= 0) && i <= 2147483646) && 0 <= y)) || ((((((((9 <= i && 0 <= y + 4) && y <= 0) && N <= 10) && x < 2147483643) && 0 <= y + 2147483648) && i <= 2147483646) && 0 <= x) && 0 <= i)) || ((((((y <= 2 && N <= 10) && x <= 0) && 0 <= x + 2) && i <= 2147483646) && 4 <= i) && 0 <= y)) || ((((((9 <= i && y <= 0) && N <= 10) && x <= 0) && i <= 2147483646) && 0 <= y) && 0 <= x + 2147483647)) || ((((((0 <= x + 4 && y <= 0) && N <= 10) && x <= 0) && 4 <= i) && i <= 2147483646) && 0 <= y)) || ((((((N <= 10 && 0 < x + 2147483644) && y <= 3) && x <= 0) && 8 <= i) && i <= 2147483646) && 0 <= y)) || ((((((y <= 0 && 0 < x + 2147483644) && N <= 10) && x <= 0) && 8 <= i) && 0 <= y + 3) && i <= 2147483646)) || ((((((9 <= i && y <= 1) && N <= 10) && x < 2147483646) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((y <= 3 && N <= 10) && x <= 2) && 5 <= i) && i <= 2147483646) && 0 <= y) && 0 <= x)) || ((((((10 <= i && y < 2147483643) && N <= 10) && x < 2147483643) && i <= 2147483646) && 0 <= y) && 0 <= x)) || ((((((9 <= i && y <= 0) && N <= 10) && 0 <= y + 2) && x < 2147483645) && i <= 2147483646) && 0 <= x)) || ((((((y <= 0 && N <= 10) && 7 <= i) && x < 2147483645) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((y <= 0 && N <= 10) && 8 <= i) && x < 2147483645) && i <= 2147483646) && 0 <= y + 1) && 0 <= x)) || ((((((9 <= i && 0 <= x + 1) && N <= 10) && x <= 0) && y < 2147483646) && i <= 2147483646) && 0 <= y)) || ((((((y <= 0 && 3 <= i) && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y + 1) && i <= 2147483646)) || ((((((10 <= i && N <= 10) && x <= 1) && y <= 2147483646) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((x < 2147483644 && y <= 2) && N <= 10) && 8 <= i) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((x <= 3 && y <= 1) && N <= 10) && i <= 2147483646) && 4 <= i) && 0 <= x) && 0 <= y)) || ((((((0 <= x + 1 && 0 <= y + 4) && y <= 0) && N <= 10) && x <= 0) && 5 <= i) && i <= 2147483646)) || ((((((9 <= i && N <= 10) && x <= 0) && y <= 2147483646) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((y <= 4 && x <= 4) && N <= 10) && 8 <= i) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((y <= 0 && 0 < x + 2147483644) && N <= 10) && 7 <= i) && 0 <= y + 2) && x <= 0) && i <= 2147483646)) || ((((((0 <= x + 4 && y <= 4) && N <= 10) && 8 <= i) && x <= 0) && i <= 2147483646) && 0 <= y)) || ((((((y <= 1 && N <= 10) && 7 <= i) && x <= 0) && i <= 2147483646) && 0 < x + 2147483645) && 0 <= y)) || ((((((x <= 3 && y <= 4) && N <= 10) && 7 <= i) && i <= 2147483646) && 0 <= y) && 0 <= x)) || ((((((N <= 10 && y <= 3) && x <= 1) && i <= 2147483646) && 4 <= i) && 0 <= y) && 0 <= x)) || ((((((y <= 0 && N <= 10) && 2 <= i) && 0 <= x + 2) && x <= 0) && i <= 2147483646) && 0 <= y)) || ((((((y < 2147483644 && N <= 10) && x <= 0) && i <= 2147483646) && 6 <= i) && 0 <= x) && 0 <= y)) || ((((((((9 <= i && x <= 4) && y <= 0) && 0 < y + 2147483644) && N <= 10) && 0 <= y + 2147483648) && i <= 2147483646) && 0 <= x) && 0 <= i)) || ((((((9 <= i && y <= 1) && 0 < x + 2147483647) && N <= 10) && x <= 0) && i <= 2147483646) && 0 <= y)) || ((((((9 <= i && y <= 2) && N <= 10) && x <= 0) && 0 < x + 2147483646) && i <= 2147483646) && 0 <= y)) || ((((((((0 < y + 2147483644 && y <= 0) && N <= 10) && 7 <= i) && 0 <= y + 2147483648) && x <= 2) && i <= 2147483646) && 0 <= x) && 0 <= i)) || ((((((y <= 0 && N <= 10) && x <= 1) && 0 <= y + 3) && i <= 2147483646) && 4 <= i) && 0 <= x)) || ((((((9 <= i && 0 <= x + 4) && N <= 10) && y < 2147483643) && x <= 0) && i <= 2147483646) && 0 <= y)) || ((((((1 <= i && y <= 1) && N <= 10) && x <= 0) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((10 <= i && y <= 0) && N <= 10) && i <= 2147483646) && 0 <= y + 1) && 0 <= x) && x <= 2147483646)) || ((((((y < 2147483644 && N <= 10) && 7 <= i) && x <= 1) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((x <= 4 && y <= 3) && N <= 10) && 7 <= i) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((10 <= i && 0 <= x + 1) && N <= 10) && x <= 0) && y <= 2147483646) && i <= 2147483646) && 0 <= y)) || ((((((y <= 2 && 0 < x + 2147483644) && N <= 10) && 7 <= i) && x <= 0) && i <= 2147483646) && 0 <= y)) || ((((((y <= 0 && N <= 10) && x < 2147483643) && 5 <= i) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((y <= 1 && N <= 10) && x <= 0) && 0 <= x + 3) && i <= 2147483646) && 4 <= i) && 0 <= y)) || ((((((y <= 0 && N <= 10) && 7 <= i) && x <= 0) && 0 < x + 2147483646) && i <= 2147483646) && 0 <= y)) || ((((((0 <= x + 1 && y <= 3) && N <= 10) && x <= 0) && i <= 2147483646) && 4 <= i) && 0 <= y)) || ((((((y <= 4 && N <= 10) && 7 <= i) && x <= 0) && 0 <= x + 3) && i <= 2147483646) && 0 <= y)) || ((((((y <= 0 && N <= 10) && x <= 0) && 0 <= x + 3) && 0 <= y + 1) && i <= 2147483646) && 4 <= i)) || ((((((0 <= x + 1 && y <= 4) && N <= 10) && x <= 0) && 5 <= i) && i <= 2147483646) && 0 <= y)) || ((((((10 <= i && y <= 2) && 0 < x + 2147483647) && N <= 10) && x <= 0) && i <= 2147483646) && 0 <= y)) || ((((((x <= 3 && y <= 0) && N <= 10) && 0 <= y + 2) && 5 <= i) && i <= 2147483646) && 0 <= x)) || ((((((0 <= x + 1 && y <= 0) && N <= 10) && 8 <= i) && x <= 0) && 0 < y + 2147483646) && i <= 2147483646)) || ((((((y <= 1 && 3 <= i) && N <= 10) && x <= 2) && i <= 2147483646) && 0 <= y) && 0 <= x)) || ((((((y <= 0 && 0 < y + 2147483644) && N <= 10) && x <= 0) && 5 <= i) && i <= 2147483646) && 0 <= x)) || ((((((y <= 0 && 3 <= i) && N <= 10) && x <= 1) && 0 <= y + 2) && i <= 2147483646) && 0 <= x)) || ((((((x <= 3 && 10 <= i) && y <= 0) && N <= 10) && 0 < y + 2147483646) && i <= 2147483646) && 0 <= x)) || ((((((9 <= i && y <= 0) && 0 < y + 2147483647) && N <= 10) && x <= 1) && i <= 2147483646) && 0 <= x)) || ((((((10 <= i && y < 2147483645) && N <= 10) && x <= 0) && 0 <= x + 3) && i <= 2147483646) && 0 <= y)) || ((((((9 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 2) && 0 < x + 2147483646) && i <= 2147483646)) || ((((((y <= 4 && N <= 10) && x <= 0) && i <= 2147483646) && 4 <= i) && 0 <= x) && 0 <= y)) || ((((((10 <= i && y <= 0) && 0 < x + 2147483647) && N <= 10) && 0 <= y + 2) && x <= 0) && i <= 2147483646)) || ((((((0 <= x + 1 && y < 2147483644) && N <= 10) && 7 <= i) && x <= 0) && i <= 2147483646) && 0 <= y)) || ((((((((0 <= y + 4 && y <= 0) && N <= 10) && 0 <= y + 2147483648) && x <= 2) && i <= 2147483646) && 6 <= i) && 0 <= x) && 0 <= i)) || ((((((x < 2147483644 && 10 <= i) && y <= 4) && N <= 10) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((0 <= x + 4 && y <= 3) && N <= 10) && 7 <= i) && x <= 0) && i <= 2147483646) && 0 <= y)) || ((((((y <= 1 && N <= 10) && x <= 1) && 2 <= i) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((y <= 0 && N <= 10) && x <= 0) && i <= 2147483646) && 0 <= x) && 0 <= y) && 0 <= i)) || ((((((x <= 3 && 10 <= i) && y < 2147483645) && N <= 10) && i <= 2147483646) && 0 <= y) && 0 <= x)) || ((((((y <= 0 && 3 <= i) && N <= 10) && x <= 2) && i <= 2147483646) && 0 <= y + 1) && 0 <= x)) || ((((((9 <= i && N <= 10) && x <= 1) && y < 2147483646) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((y <= 2 && 0 <= x + 4) && N <= 10) && x <= 0) && 6 <= i) && i <= 2147483646) && 0 <= y)) || ((((((((y <= 0 && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y + 2147483648) && 0 <= y + 3) && 5 <= i) && i <= 2147483646) && 0 <= i)) || ((((((y <= 1 && x <= 4) && N <= 10) && 5 <= i) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((((y <= 0 && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y + 2147483648) && 8 <= i) && 0 < y + 2147483645) && i <= 2147483646) && 0 <= i)) || ((((((y <= 0 && N <= 10) && x <= 0) && 0 <= x + 3) && 0 <= y + 3) && i <= 2147483646) && 6 <= i)) || ((((((y <= 1 && 3 <= i) && N <= 10) && 0 <= x + 2) && x <= 0) && i <= 2147483646) && 0 <= y)) || ((((((10 <= i && y <= 2) && N <= 10) && x < 2147483646) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((9 <= i && y <= 0) && 0 < x + 2147483647) && N <= 10) && x <= 0) && 0 <= y + 1) && i <= 2147483646)) || ((((((((x < 2147483644 && 10 <= i) && y <= 0) && 0 <= y + 4) && N <= 10) && 0 <= y + 2147483648) && i <= 2147483646) && 0 <= x) && 0 <= i)) || ((((((1 <= i && 0 <= x + 1) && y <= 0) && N <= 10) && x <= 0) && i <= 2147483646) && 0 <= y)) || ((((((((10 <= i && 0 <= x + 4) && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 2147483648) && 0 < y + 2147483645) && i <= 2147483646) && 0 <= i)) || ((((((y <= 0 && 3 <= i) && N <= 10) && x <= 0) && 0 <= y + 3) && i <= 2147483646) && 0 <= x)) || ((((((((0 <= x + 4 && 0 <= y + 4) && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 2147483648) && 8 <= i) && i <= 2147483646) && 0 <= i)) || ((((((y < 2147483643 && N <= 10) && x <= 1) && i <= 2147483646) && 6 <= i) && 0 <= x) && 0 <= y)) || ((((((((9 <= i && y <= 0) && N <= 10) && 0 <= y + 2147483648) && x <= 2) && 0 < y + 2147483646) && i <= 2147483646) && 0 <= x) && 0 <= i)) || ((((((9 <= i && y < 2147483645) && N <= 10) && x <= 2) && i <= 2147483646) && 0 <= y) && 0 <= x)) || ((((((y <= 0 && N <= 10) && 7 <= i) && x <= 0) && 0 < x + 2147483645) && 0 <= y + 1) && i <= 2147483646)) || ((((((x <= 3 && y <= 0) && N <= 10) && 0 <= y + 3) && i <= 2147483646) && 6 <= i) && 0 <= x)) || ((((((((0 < y + 2147483644 && y <= 0) && N <= 10) && 7 <= i) && 0 <= x + 2) && x <= 0) && 0 <= y + 2147483648) && i <= 2147483646) && 0 <= i)) || ((((((0 <= x + 1 && y <= 0) && N <= 10) && 7 <= i) && 0 < y + 2147483645) && x <= 0) && i <= 2147483646)) || ((((((1 <= i && y <= 0) && N <= 10) && x <= 0) && i <= 2147483646) && 0 <= y + 1) && 0 <= x)) || ((((((10 <= i && 0 <= x + 4) && y < 2147483644) && N <= 10) && x <= 0) && i <= 2147483646) && 0 <= y)) || ((((((1 <= i && y <= 0) && N <= 10) && x <= 1) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((((x <= 4 && y <= 0) && N <= 10) && 7 <= i) && 0 <= y + 2147483647) && 0 <= y + 3) && i <= 2147483646) && 0 <= x) && 0 <= i)) || ((((((x <= 3 && y <= 0) && 3 <= i) && N <= 10) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((y <= 0 && N <= 10) && x <= 1) && 8 <= i) && 0 < y + 2147483646) && i <= 2147483646) && 0 <= x)) || ((((((y <= 0 && N <= 10) && 7 <= i) && x <= 0) && 0 < y + 2147483646) && i <= 2147483646) && 0 <= x)) || ((((((y <= 0 && 0 < x + 2147483644) && N <= 10) && x <= 0) && 5 <= i) && i <= 2147483646) && 0 <= y)) || ((((((((0 <= x + 4 && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 2147483648) && 0 <= y + 2) && i <= 2147483646) && 6 <= i) && 0 <= i)) || ((((((((9 <= i && 0 <= x + 4) && 0 < y + 2147483644) && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 2147483648) && i <= 2147483646) && 0 <= i)) || ((((((10 <= i && y <= 0) && N <= 10) && x <= 0) && 0 < x + 2147483646) && 0 <= y + 3) && i <= 2147483646)) || ((((((9 <= i && x <= 3) && y <= 0) && N <= 10) && 0 < y + 2147483645) && i <= 2147483646) && 0 <= x)) || ((((((y <= 0 && N <= 10) && 8 <= i) && x <= 0) && 0 < x + 2147483646) && 0 <= y + 1) && i <= 2147483646)) || ((((((10 <= i && y <= 1) && N <= 10) && x <= 0) && i <= 2147483646) && 0 <= y) && 0 <= x + 2147483647)) || ((((((3 <= i && N <= 10) && y <= 3) && x <= 0) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((y <= 0 && N <= 10) && 2 <= i) && x <= 2) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((y <= 2 && N <= 10) && 7 <= i) && x < 2147483643) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((9 <= i && y <= 0) && N <= 10) && i <= 2147483646) && 0 <= x) && 0 <= y) && x <= 2147483646)) || ((((((((0 <= y + 4 && y <= 0) && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y + 2147483648) && i <= 2147483646) && 6 <= i) && 0 <= i)) || ((((((y <= 0 && N <= 10) && 8 <= i) && x < 2147483646) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((9 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 3) && i <= 2147483646) && 0 < x + 2147483645)) || ((((((y < 2147483643 && N <= 10) && x <= 0) && 5 <= i) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((((x <= 4 && y <= 0) && N <= 10) && 0 <= y + 2147483647) && 0 <= y + 2) && i <= 2147483646) && 6 <= i) && 0 <= x) && 0 <= i)) || ((((((9 <= i && x <= 4) && N <= 10) && y < 2147483643) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((y <= 1 && 0 <= x + 1) && N <= 10) && 2 <= i) && x <= 0) && i <= 2147483646) && 0 <= y)) || ((((((y <= 4 && N <= 10) && x <= 2) && i <= 2147483646) && 6 <= i) && 0 <= y) && 0 <= x)) || ((((((9 <= i && y <= 4) && N <= 10) && x < 2147483643) && i <= 2147483646) && 0 <= y) && 0 <= x)) || (((((((y < 2147483643 && N <= 10) && 7 <= i) && x <= 0) && 0 <= x + 2) && i <= 2147483646) && 0 <= y) && 0 <= i)) || ((((((10 <= i && y <= 3) && N <= 10) && x < 2147483645) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((9 <= i && 0 <= x + 1) && y <= 0) && 0 < y + 2147483647) && N <= 10) && x <= 0) && i <= 2147483646)) || ((((((10 <= i && x <= 4) && y < 2147483644) && N <= 10) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((((y <= 0 && 0 < y + 2147483644) && N <= 10) && x <= 0) && 0 <= y + 2147483648) && 8 <= i) && 0 <= x + 3) && i <= 2147483646) && 0 <= i)) || ((((((y < 2147483645 && N <= 10) && x <= 1) && 8 <= i) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((y <= 0 && 0 < y + 2147483647) && N <= 10) && x <= 0) && 8 <= i) && i <= 2147483646) && 0 <= x)) || ((((((((9 <= i && y <= 0) && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y + 2147483648) && 0 < y + 2147483646) && i <= 2147483646) && 0 <= i)) || ((((((10 <= i && N <= 10) && x <= 2) && y < 2147483646) && i <= 2147483646) && 0 <= y) && 0 <= x)) || ((((((y <= 0 && N <= 10) && 0 <= y + 2) && x <= 0) && 0 <= x + 3) && 5 <= i) && i <= 2147483646)) || ((((((y <= 1 && 0 < x + 2147483644) && N <= 10) && x <= 0) && i <= 2147483646) && 6 <= i) && 0 <= y)) || ((((((((10 <= i && y <= 0) && 0 < y + 2147483647) && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y + 2147483648) && i <= 2147483646) && 0 <= i)) || ((((((((9 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 2147483648) && 0 < y + 2147483645) && 0 <= x + 3) && i <= 2147483646) && 0 <= i)) || ((((((0 <= x + 1 && N <= 10) && y < 2147483643) && x <= 0) && i <= 2147483646) && 6 <= i) && 0 <= y)) || ((((((9 <= i && y <= 2) && N <= 10) && x < 2147483645) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((y <= 0 && N <= 10) && x < 2147483643) && 6 <= i) && i <= 2147483646) && 0 <= y + 1) && 0 <= x)) || ((((((0 <= x + 1 && y <= 0) && N <= 10) && 2 <= i) && x <= 0) && i <= 2147483646) && 0 <= y + 1)) || ((((((y <= 0 && N <= 10) && 0 <= y + 2) && x <= 2) && i <= 2147483646) && 4 <= i) && 0 <= x)) || ((((((((y <= 0 && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y + 2147483648) && 0 <= y + 2) && i <= 2147483646) && 4 <= i) && 0 <= i)) || ((((((10 <= i && y <= 3) && N <= 10) && x <= 0) && 0 < x + 2147483646) && i <= 2147483646) && 0 <= y)) || ((((((x <= 4 && y <= 0) && N <= 10) && i <= 2147483646) && 4 <= i) && 0 <= x) && 0 <= y)) || ((((((9 <= i && y < 2147483644) && N <= 10) && x <= 0) && 0 <= x + 3) && i <= 2147483646) && 0 <= y)) || ((((((y <= 0 && 3 <= i) && N <= 10) && x <= 0) && 0 <= x + 3) && i <= 2147483646) && 0 <= y)) || ((((((x <= 3 && y <= 2) && N <= 10) && 5 <= i) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((y <= 2 && N <= 10) && x <= 0) && 0 <= x + 3) && 5 <= i) && i <= 2147483646) && 0 <= y)) || ((((((9 <= i && y <= 0) && N <= 10) && x < 2147483646) && i <= 2147483646) && 0 <= y + 1) && 0 <= x)) || ((((((((10 <= i && x <= 4) && y <= 0) && N <= 10) && 0 <= y + 2147483648) && 0 < y + 2147483645) && i <= 2147483646) && 0 <= x) && 0 <= i)) || ((((((x <= 3 && y <= 0) && N <= 10) && i <= 2147483646) && 4 <= i) && 0 <= y + 1) && 0 <= x)) || ((((((((y <= 0 && N <= 10) && 7 <= i) && 0 <= y + 2) && x < 2147483643) && 0 <= y + 2147483648) && i <= 2147483646) && 0 <= x) && 0 <= i)) || ((((((x < 2147483644 && y <= 0) && N <= 10) && i <= 2147483646) && 6 <= i) && 0 <= x) && 0 <= y)) || ((((((y <= 3 && N <= 10) && 8 <= i) && x < 2147483643) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((y <= 2 && N <= 10) && 2 <= i) && x <= 0) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((x <= 3 && y <= 3) && N <= 10) && i <= 2147483646) && 6 <= i) && 0 <= x) && 0 <= y)) || ((((((y <= 0 && N <= 10) && 2 <= i) && x <= 0) && 0 <= y + 2) && i <= 2147483646) && 0 <= x)) || ((((((((0 <= x + 4 && y <= 0) && N <= 10) && 7 <= i) && x <= 0) && 0 <= y + 2147483648) && 0 <= y + 3) && i <= 2147483646) && 0 <= i)) || ((((((10 <= i && y <= 0) && N <= 10) && 0 <= y + 2147483647) && x <= 1) && i <= 2147483646) && 0 <= x)) || ((((((y <= 2 && 3 <= i) && N <= 10) && x <= 1) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((x < 2147483644 && y <= 0) && N <= 10) && 0 <= y + 2) && 8 <= i) && i <= 2147483646) && 0 <= x)) || ((((((((y <= 0 && 0 <= y + 4) && N <= 10) && 7 <= i) && x <= 0) && 0 <= y + 2147483648) && 0 <= x + 3) && i <= 2147483646) && 0 <= i)) || ((((((x < 2147483644 && y <= 1) && N <= 10) && 7 <= i) && i <= 2147483646) && 0 <= x) && 0 <= y)) || ((((((y <= 0 && 0 < x + 2147483647) && N <= 10) && 8 <= i) && x <= 0) && i <= 2147483646) && 0 <= y)) || ((((((y < 2147483644 && N <= 10) && 8 <= i) && x <= 2) && i <= 2147483646) && 0 <= y) && 0 <= x)) || ((((((((x <= 4 && y <= 0) && 0 <= y + 4) && N <= 10) && 0 <= y + 2147483648) && 8 <= i) && i <= 2147483646) && 0 <= x) && 0 <= i) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 10 error locations. Result: SAFE, OverallTime: 15.4s, OverallIterations: 19, TraceHistogramMax: 11, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 208.3s, HoareTripleCheckerStatistics: 619 SDtfs, 2349 SDslu, 1941 SDs, 0 SdLazy, 524 SolverSat, 360 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1070 GetRequests, 864 SyntacticMatches, 21 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1131 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92833occurred in iteration=18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.4s AutomataMinimizationTime, 19 MinimizatonAttempts, 126749 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1797 NumberOfFragments, 5484 HoareAnnotationTreeSize, 1 FomulaSimplifications, 951719 FormulaSimplificationTreeSizeReduction, 88.7s HoareSimplificationTime, 1 FomulaSimplificationsInter, 254857 FormulaSimplificationTreeSizeReductionInter, 119.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 803 NumberOfCodeBlocks, 787 NumberOfCodeBlocksAsserted, 49 NumberOfCheckSat, 1139 ConstructedInterpolants, 0 QuantifiedInterpolants, 212021 SizeOfPredicates, 6 NumberOfNonLiveVariables, 896 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 45 InterpolantComputations, 12 PerfectInterpolantSequences, 1183/2355 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...