./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b0a853f0131530f88013a3fcfdf4f133f41c0569 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 11:31:03,837 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 11:31:03,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 11:31:03,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 11:31:03,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 11:31:03,857 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 11:31:03,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 11:31:03,861 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 11:31:03,863 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 11:31:03,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 11:31:03,865 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 11:31:03,867 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 11:31:03,867 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 11:31:03,868 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 11:31:03,869 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 11:31:03,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 11:31:03,872 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 11:31:03,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 11:31:03,875 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 11:31:03,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 11:31:03,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 11:31:03,881 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 11:31:03,882 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 11:31:03,883 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 11:31:03,886 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 11:31:03,887 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 11:31:03,887 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 11:31:03,888 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 11:31:03,888 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 11:31:03,889 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 11:31:03,890 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 11:31:03,891 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 11:31:03,891 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 11:31:03,892 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 11:31:03,893 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 11:31:03,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 11:31:03,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 11:31:03,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 11:31:03,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 11:31:03,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 11:31:03,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 11:31:03,898 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-20 11:31:03,911 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 11:31:03,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 11:31:03,913 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 11:31:03,913 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 11:31:03,913 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 11:31:03,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 11:31:03,915 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 11:31:03,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 11:31:03,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 11:31:03,915 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 11:31:03,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 11:31:03,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 11:31:03,916 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-20 11:31:03,916 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 11:31:03,917 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 11:31:03,917 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 11:31:03,917 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 11:31:03,917 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 11:31:03,918 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 11:31:03,918 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 11:31:03,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 11:31:03,918 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 11:31:03,919 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 11:31:03,919 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 11:31:03,919 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 11:31:03,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 11:31:03,919 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 11:31:03,920 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0a853f0131530f88013a3fcfdf4f133f41c0569 [2019-11-20 11:31:04,086 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 11:31:04,101 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 11:31:04,103 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 11:31:04,105 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 11:31:04,105 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 11:31:04,106 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c [2019-11-20 11:31:04,160 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/data/4a641ff25/3490160018254081836c938fa2b7c838/FLAGc7c738c76 [2019-11-20 11:31:04,572 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 11:31:04,572 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c [2019-11-20 11:31:04,579 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/data/4a641ff25/3490160018254081836c938fa2b7c838/FLAGc7c738c76 [2019-11-20 11:31:04,596 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/data/4a641ff25/3490160018254081836c938fa2b7c838 [2019-11-20 11:31:04,600 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 11:31:04,602 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 11:31:04,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 11:31:04,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 11:31:04,608 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 11:31:04,609 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:31:04" (1/1) ... [2019-11-20 11:31:04,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11486719 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:04, skipping insertion in model container [2019-11-20 11:31:04,612 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:31:04" (1/1) ... [2019-11-20 11:31:04,620 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 11:31:04,641 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 11:31:04,822 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:31:04,825 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 11:31:04,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:31:04,928 INFO L192 MainTranslator]: Completed translation [2019-11-20 11:31:04,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:04 WrapperNode [2019-11-20 11:31:04,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 11:31:04,931 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 11:31:04,931 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 11:31:04,931 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 11:31:04,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:04" (1/1) ... [2019-11-20 11:31:04,945 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:04" (1/1) ... [2019-11-20 11:31:04,961 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 11:31:04,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 11:31:04,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 11:31:04,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 11:31:04,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:04" (1/1) ... [2019-11-20 11:31:04,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:04" (1/1) ... [2019-11-20 11:31:04,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:04" (1/1) ... [2019-11-20 11:31:04,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:04" (1/1) ... [2019-11-20 11:31:04,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:04" (1/1) ... [2019-11-20 11:31:04,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:04" (1/1) ... [2019-11-20 11:31:04,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:04" (1/1) ... [2019-11-20 11:31:04,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 11:31:04,994 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 11:31:04,995 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 11:31:04,995 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 11:31:04,996 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 11:31:05,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 11:31:05,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 11:31:05,456 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 11:31:05,457 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 11:31:05,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:31:05 BoogieIcfgContainer [2019-11-20 11:31:05,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 11:31:05,459 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 11:31:05,459 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 11:31:05,463 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 11:31:05,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:31:04" (1/3) ... [2019-11-20 11:31:05,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33c2811f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:31:05, skipping insertion in model container [2019-11-20 11:31:05,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:04" (2/3) ... [2019-11-20 11:31:05,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33c2811f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:31:05, skipping insertion in model container [2019-11-20 11:31:05,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:31:05" (3/3) ... [2019-11-20 11:31:05,469 INFO L109 eAbstractionObserver]: Analyzing ICFG ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c [2019-11-20 11:31:05,477 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 11:31:05,483 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2019-11-20 11:31:05,493 INFO L249 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2019-11-20 11:31:05,514 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 11:31:05,514 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 11:31:05,514 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 11:31:05,514 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 11:31:05,514 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 11:31:05,514 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 11:31:05,515 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 11:31:05,515 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 11:31:05,529 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2019-11-20 11:31:05,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-20 11:31:05,535 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:05,536 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-20 11:31:05,536 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]=== [2019-11-20 11:31:05,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:05,543 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-11-20 11:31:05,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:05,552 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81917941] [2019-11-20 11:31:05,553 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:05,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:05,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:05,674 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81917941] [2019-11-20 11:31:05,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:31:05,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-20 11:31:05,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157058126] [2019-11-20 11:31:05,682 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 11:31:05,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:05,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 11:31:05,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 11:31:05,698 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 3 states. [2019-11-20 11:31:05,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:05,748 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2019-11-20 11:31:05,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 11:31:05,750 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-11-20 11:31:05,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:05,759 INFO L225 Difference]: With dead ends: 43 [2019-11-20 11:31:05,759 INFO L226 Difference]: Without dead ends: 30 [2019-11-20 11:31:05,762 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 [2019-11-20 11:31:05,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-20 11:31:05,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2019-11-20 11:31:05,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-20 11:31:05,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2019-11-20 11:31:05,800 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 3 [2019-11-20 11:31:05,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:05,801 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2019-11-20 11:31:05,801 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 11:31:05,801 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2019-11-20 11:31:05,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-20 11:31:05,802 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:05,802 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-20 11:31:05,802 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]=== [2019-11-20 11:31:05,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:05,803 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2019-11-20 11:31:05,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:05,803 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055042202] [2019-11-20 11:31:05,804 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:05,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:05,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:05,821 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055042202] [2019-11-20 11:31:05,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:31:05,822 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-20 11:31:05,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906203185] [2019-11-20 11:31:05,823 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 11:31:05,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:05,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 11:31:05,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 11:31:05,824 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand 3 states. [2019-11-20 11:31:05,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:05,846 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2019-11-20 11:31:05,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 11:31:05,847 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-20 11:31:05,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:05,848 INFO L225 Difference]: With dead ends: 29 [2019-11-20 11:31:05,848 INFO L226 Difference]: Without dead ends: 28 [2019-11-20 11:31:05,849 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 [2019-11-20 11:31:05,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-11-20 11:31:05,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-11-20 11:31:05,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-20 11:31:05,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2019-11-20 11:31:05,856 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 4 [2019-11-20 11:31:05,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:05,856 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2019-11-20 11:31:05,856 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 11:31:05,856 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2019-11-20 11:31:05,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 11:31:05,857 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:05,857 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:31:05,857 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]=== [2019-11-20 11:31:05,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:05,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1366845466, now seen corresponding path program 1 times [2019-11-20 11:31:05,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:05,858 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666395807] [2019-11-20 11:31:05,858 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:05,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:05,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:05,886 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666395807] [2019-11-20 11:31:05,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:31:05,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-20 11:31:05,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540822337] [2019-11-20 11:31:05,887 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 11:31:05,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:05,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 11:31:05,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 11:31:05,888 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand 3 states. [2019-11-20 11:31:05,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:05,939 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2019-11-20 11:31:05,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 11:31:05,940 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-11-20 11:31:05,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:05,941 INFO L225 Difference]: With dead ends: 51 [2019-11-20 11:31:05,941 INFO L226 Difference]: Without dead ends: 49 [2019-11-20 11:31:05,942 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 [2019-11-20 11:31:05,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-11-20 11:31:05,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2019-11-20 11:31:05,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-11-20 11:31:05,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 59 transitions. [2019-11-20 11:31:05,951 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 59 transitions. Word has length 7 [2019-11-20 11:31:05,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:05,951 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 59 transitions. [2019-11-20 11:31:05,951 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 11:31:05,951 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 59 transitions. [2019-11-20 11:31:05,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 11:31:05,952 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:05,952 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-11-20 11:31:05,953 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]=== [2019-11-20 11:31:05,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:05,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1366808307, now seen corresponding path program 1 times [2019-11-20 11:31:05,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:05,954 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206363741] [2019-11-20 11:31:05,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:05,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:05,985 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:05,986 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206363741] [2019-11-20 11:31:05,986 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780777424] [2019-11-20 11:31:05,986 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/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 [2019-11-20 11:31:06,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:06,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 11:31:06,034 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:06,054 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:06,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:06,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-11-20 11:31:06,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128402146] [2019-11-20 11:31:06,055 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 11:31:06,055 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:06,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 11:31:06,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 11:31:06,056 INFO L87 Difference]: Start difference. First operand 43 states and 59 transitions. Second operand 4 states. [2019-11-20 11:31:06,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:06,090 INFO L93 Difference]: Finished difference Result 70 states and 92 transitions. [2019-11-20 11:31:06,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 11:31:06,094 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-20 11:31:06,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:06,095 INFO L225 Difference]: With dead ends: 70 [2019-11-20 11:31:06,096 INFO L226 Difference]: Without dead ends: 69 [2019-11-20 11:31:06,096 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 11:31:06,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-11-20 11:31:06,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 61. [2019-11-20 11:31:06,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-11-20 11:31:06,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 88 transitions. [2019-11-20 11:31:06,105 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 88 transitions. Word has length 7 [2019-11-20 11:31:06,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:06,105 INFO L462 AbstractCegarLoop]: Abstraction has 61 states and 88 transitions. [2019-11-20 11:31:06,105 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 11:31:06,105 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 88 transitions. [2019-11-20 11:31:06,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-20 11:31:06,106 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:06,106 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:31:06,312 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:06,313 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]=== [2019-11-20 11:31:06,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:06,313 INFO L82 PathProgramCache]: Analyzing trace with hash 577463568, now seen corresponding path program 1 times [2019-11-20 11:31:06,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:06,314 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613852815] [2019-11-20 11:31:06,314 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:06,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:06,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:06,345 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613852815] [2019-11-20 11:31:06,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:31:06,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-20 11:31:06,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225670131] [2019-11-20 11:31:06,346 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 11:31:06,347 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:06,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 11:31:06,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 11:31:06,347 INFO L87 Difference]: Start difference. First operand 61 states and 88 transitions. Second operand 3 states. [2019-11-20 11:31:06,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:06,396 INFO L93 Difference]: Finished difference Result 101 states and 146 transitions. [2019-11-20 11:31:06,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 11:31:06,397 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-20 11:31:06,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:06,398 INFO L225 Difference]: With dead ends: 101 [2019-11-20 11:31:06,399 INFO L226 Difference]: Without dead ends: 99 [2019-11-20 11:31:06,399 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 [2019-11-20 11:31:06,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-11-20 11:31:06,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 94. [2019-11-20 11:31:06,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-11-20 11:31:06,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 141 transitions. [2019-11-20 11:31:06,412 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 141 transitions. Word has length 8 [2019-11-20 11:31:06,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:06,413 INFO L462 AbstractCegarLoop]: Abstraction has 94 states and 141 transitions. [2019-11-20 11:31:06,413 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 11:31:06,413 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 141 transitions. [2019-11-20 11:31:06,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 11:31:06,414 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:06,414 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:31:06,414 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]=== [2019-11-20 11:31:06,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:06,415 INFO L82 PathProgramCache]: Analyzing trace with hash 721693167, now seen corresponding path program 1 times [2019-11-20 11:31:06,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:06,415 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809256596] [2019-11-20 11:31:06,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:06,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:06,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:06,465 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809256596] [2019-11-20 11:31:06,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:31:06,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-20 11:31:06,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560479359] [2019-11-20 11:31:06,466 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 11:31:06,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:06,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 11:31:06,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 11:31:06,467 INFO L87 Difference]: Start difference. First operand 94 states and 141 transitions. Second operand 3 states. [2019-11-20 11:31:06,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:06,499 INFO L93 Difference]: Finished difference Result 165 states and 252 transitions. [2019-11-20 11:31:06,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 11:31:06,500 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-20 11:31:06,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:06,502 INFO L225 Difference]: With dead ends: 165 [2019-11-20 11:31:06,502 INFO L226 Difference]: Without dead ends: 163 [2019-11-20 11:31:06,503 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 [2019-11-20 11:31:06,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2019-11-20 11:31:06,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 154. [2019-11-20 11:31:06,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-11-20 11:31:06,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 234 transitions. [2019-11-20 11:31:06,522 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 234 transitions. Word has length 9 [2019-11-20 11:31:06,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:06,522 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 234 transitions. [2019-11-20 11:31:06,522 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 11:31:06,523 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 234 transitions. [2019-11-20 11:31:06,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 11:31:06,523 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:06,523 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:31:06,524 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]=== [2019-11-20 11:31:06,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:06,524 INFO L82 PathProgramCache]: Analyzing trace with hash 897651769, now seen corresponding path program 1 times [2019-11-20 11:31:06,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:06,525 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635463309] [2019-11-20 11:31:06,525 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:06,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:06,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:06,581 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635463309] [2019-11-20 11:31:06,581 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:31:06,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-20 11:31:06,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734678563] [2019-11-20 11:31:06,581 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 11:31:06,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:06,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 11:31:06,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 11:31:06,582 INFO L87 Difference]: Start difference. First operand 154 states and 234 transitions. Second operand 3 states. [2019-11-20 11:31:06,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:06,651 INFO L93 Difference]: Finished difference Result 283 states and 438 transitions. [2019-11-20 11:31:06,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 11:31:06,652 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-11-20 11:31:06,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:06,655 INFO L225 Difference]: With dead ends: 283 [2019-11-20 11:31:06,656 INFO L226 Difference]: Without dead ends: 281 [2019-11-20 11:31:06,656 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 [2019-11-20 11:31:06,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2019-11-20 11:31:06,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 276. [2019-11-20 11:31:06,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2019-11-20 11:31:06,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 424 transitions. [2019-11-20 11:31:06,699 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 424 transitions. Word has length 10 [2019-11-20 11:31:06,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:06,699 INFO L462 AbstractCegarLoop]: Abstraction has 276 states and 424 transitions. [2019-11-20 11:31:06,699 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 11:31:06,699 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 424 transitions. [2019-11-20 11:31:06,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 11:31:06,700 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:06,700 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1] [2019-11-20 11:31:06,700 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]=== [2019-11-20 11:31:06,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:06,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1830298297, now seen corresponding path program 2 times [2019-11-20 11:31:06,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:06,701 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187597472] [2019-11-20 11:31:06,701 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:06,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:06,730 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-20 11:31:06,731 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187597472] [2019-11-20 11:31:06,731 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [583741165] [2019-11-20 11:31:06,731 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2019-11-20 11:31:06,754 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-20 11:31:06,754 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 11:31:06,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 11:31:06,755 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:06,758 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-20 11:31:06,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:06,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-11-20 11:31:06,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668588706] [2019-11-20 11:31:06,759 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 11:31:06,759 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:06,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 11:31:06,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 11:31:06,760 INFO L87 Difference]: Start difference. First operand 276 states and 424 transitions. Second operand 4 states. Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:06,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:06,795 INFO L93 Difference]: Finished difference Result 276 states and 424 transitions. [2019-11-20 11:31:06,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 11:31:06,802 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-20 11:31:06,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:06,805 INFO L225 Difference]: With dead ends: 276 [2019-11-20 11:31:06,805 INFO L226 Difference]: Without dead ends: 275 [2019-11-20 11:31:06,806 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:31:06,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2019-11-20 11:31:06,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 249. [2019-11-20 11:31:06,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2019-11-20 11:31:06,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 377 transitions. [2019-11-20 11:31:06,836 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 377 transitions. Word has length 11 [2019-11-20 11:31:06,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:06,837 INFO L462 AbstractCegarLoop]: Abstraction has 249 states and 377 transitions. [2019-11-20 11:31:06,837 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 11:31:06,837 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 377 transitions. [2019-11-20 11:31:06,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-20 11:31:06,838 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:06,838 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1] [2019-11-20 11:31:07,048 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:07,048 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]=== [2019-11-20 11:31:07,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:07,049 INFO L82 PathProgramCache]: Analyzing trace with hash -795491305, now seen corresponding path program 1 times [2019-11-20 11:31:07,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:07,049 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582932523] [2019-11-20 11:31:07,049 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:07,097 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:07,098 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582932523] [2019-11-20 11:31:07,098 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131039476] [2019-11-20 11:31:07,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/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 [2019-11-20 11:31:07,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:07,130 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 11:31:07,131 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:07,135 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:07,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:07,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-11-20 11:31:07,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782294512] [2019-11-20 11:31:07,136 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 11:31:07,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:07,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 11:31:07,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 11:31:07,137 INFO L87 Difference]: Start difference. First operand 249 states and 377 transitions. Second operand 4 states. [2019-11-20 11:31:07,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:07,202 INFO L93 Difference]: Finished difference Result 449 states and 688 transitions. [2019-11-20 11:31:07,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 11:31:07,202 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-11-20 11:31:07,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:07,206 INFO L225 Difference]: With dead ends: 449 [2019-11-20 11:31:07,206 INFO L226 Difference]: Without dead ends: 447 [2019-11-20 11:31:07,207 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 11:31:07,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2019-11-20 11:31:07,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 357. [2019-11-20 11:31:07,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 357 states. [2019-11-20 11:31:07,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 543 transitions. [2019-11-20 11:31:07,228 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 543 transitions. Word has length 14 [2019-11-20 11:31:07,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:07,228 INFO L462 AbstractCegarLoop]: Abstraction has 357 states and 543 transitions. [2019-11-20 11:31:07,228 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 11:31:07,229 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 543 transitions. [2019-11-20 11:31:07,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 11:31:07,230 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:07,230 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:31:07,430 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:07,431 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]=== [2019-11-20 11:31:07,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:07,431 INFO L82 PathProgramCache]: Analyzing trace with hash 592160614, now seen corresponding path program 1 times [2019-11-20 11:31:07,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:07,432 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59803735] [2019-11-20 11:31:07,432 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:07,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:07,497 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:07,497 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59803735] [2019-11-20 11:31:07,498 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970800156] [2019-11-20 11:31:07,498 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/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 [2019-11-20 11:31:07,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:07,537 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 11:31:07,538 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:07,553 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:07,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 11:31:07,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 4 [2019-11-20 11:31:07,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920479523] [2019-11-20 11:31:07,555 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 11:31:07,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:07,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 11:31:07,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:31:07,555 INFO L87 Difference]: Start difference. First operand 357 states and 543 transitions. Second operand 3 states. [2019-11-20 11:31:07,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:07,593 INFO L93 Difference]: Finished difference Result 357 states and 543 transitions. [2019-11-20 11:31:07,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 11:31:07,595 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-20 11:31:07,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:07,598 INFO L225 Difference]: With dead ends: 357 [2019-11-20 11:31:07,598 INFO L226 Difference]: Without dead ends: 356 [2019-11-20 11:31:07,599 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:31:07,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2019-11-20 11:31:07,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2019-11-20 11:31:07,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2019-11-20 11:31:07,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 535 transitions. [2019-11-20 11:31:07,618 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 535 transitions. Word has length 16 [2019-11-20 11:31:07,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:07,618 INFO L462 AbstractCegarLoop]: Abstraction has 356 states and 535 transitions. [2019-11-20 11:31:07,618 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 11:31:07,618 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 535 transitions. [2019-11-20 11:31:07,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 11:31:07,624 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:07,625 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2019-11-20 11:31:07,827 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:07,828 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]=== [2019-11-20 11:31:07,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:07,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1177295603, now seen corresponding path program 1 times [2019-11-20 11:31:07,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:07,828 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454994541] [2019-11-20 11:31:07,828 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:07,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:07,876 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:07,876 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454994541] [2019-11-20 11:31:07,877 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486636315] [2019-11-20 11:31:07,877 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/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 [2019-11-20 11:31:07,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:07,911 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 11:31:07,912 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:07,916 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:07,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:07,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-11-20 11:31:07,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551274691] [2019-11-20 11:31:07,917 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 11:31:07,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:07,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 11:31:07,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 11:31:07,918 INFO L87 Difference]: Start difference. First operand 356 states and 535 transitions. Second operand 4 states. [2019-11-20 11:31:07,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:07,985 INFO L93 Difference]: Finished difference Result 609 states and 919 transitions. [2019-11-20 11:31:07,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 11:31:07,986 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-11-20 11:31:07,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:07,991 INFO L225 Difference]: With dead ends: 609 [2019-11-20 11:31:07,991 INFO L226 Difference]: Without dead ends: 608 [2019-11-20 11:31:07,993 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 11:31:07,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2019-11-20 11:31:08,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 464. [2019-11-20 11:31:08,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2019-11-20 11:31:08,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 701 transitions. [2019-11-20 11:31:08,017 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 701 transitions. Word has length 17 [2019-11-20 11:31:08,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:08,017 INFO L462 AbstractCegarLoop]: Abstraction has 464 states and 701 transitions. [2019-11-20 11:31:08,018 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 11:31:08,019 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 701 transitions. [2019-11-20 11:31:08,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-20 11:31:08,023 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:08,023 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2019-11-20 11:31:08,226 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:08,226 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]=== [2019-11-20 11:31:08,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:08,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1222343671, now seen corresponding path program 1 times [2019-11-20 11:31:08,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:08,227 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674718095] [2019-11-20 11:31:08,227 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:08,278 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:08,278 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674718095] [2019-11-20 11:31:08,278 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644129845] [2019-11-20 11:31:08,279 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/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 [2019-11-20 11:31:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:08,308 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 11:31:08,309 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:08,313 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:08,313 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:08,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-11-20 11:31:08,314 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466291669] [2019-11-20 11:31:08,314 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 11:31:08,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:08,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 11:31:08,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 11:31:08,315 INFO L87 Difference]: Start difference. First operand 464 states and 701 transitions. Second operand 4 states. [2019-11-20 11:31:08,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:08,382 INFO L93 Difference]: Finished difference Result 834 states and 1284 transitions. [2019-11-20 11:31:08,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 11:31:08,383 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-11-20 11:31:08,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:08,388 INFO L225 Difference]: With dead ends: 834 [2019-11-20 11:31:08,389 INFO L226 Difference]: Without dead ends: 832 [2019-11-20 11:31:08,390 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 11:31:08,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2019-11-20 11:31:08,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 668. [2019-11-20 11:31:08,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 668 states. [2019-11-20 11:31:08,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 1007 transitions. [2019-11-20 11:31:08,419 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 1007 transitions. Word has length 18 [2019-11-20 11:31:08,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:08,419 INFO L462 AbstractCegarLoop]: Abstraction has 668 states and 1007 transitions. [2019-11-20 11:31:08,419 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 11:31:08,419 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 1007 transitions. [2019-11-20 11:31:08,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 11:31:08,420 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:08,420 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:31:08,630 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:08,634 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]=== [2019-11-20 11:31:08,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:08,634 INFO L82 PathProgramCache]: Analyzing trace with hash -668230362, now seen corresponding path program 1 times [2019-11-20 11:31:08,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:08,635 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117641342] [2019-11-20 11:31:08,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:08,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:08,677 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:08,677 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117641342] [2019-11-20 11:31:08,677 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244409455] [2019-11-20 11:31:08,677 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/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 [2019-11-20 11:31:08,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:08,703 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 11:31:08,704 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:08,715 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:08,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 11:31:08,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 4 [2019-11-20 11:31:08,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796184600] [2019-11-20 11:31:08,716 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 11:31:08,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:08,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 11:31:08,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:31:08,717 INFO L87 Difference]: Start difference. First operand 668 states and 1007 transitions. Second operand 3 states. [2019-11-20 11:31:08,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:08,755 INFO L93 Difference]: Finished difference Result 668 states and 1007 transitions. [2019-11-20 11:31:08,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 11:31:08,756 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-11-20 11:31:08,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:08,763 INFO L225 Difference]: With dead ends: 668 [2019-11-20 11:31:08,763 INFO L226 Difference]: Without dead ends: 667 [2019-11-20 11:31:08,764 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:31:08,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2019-11-20 11:31:08,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 667. [2019-11-20 11:31:08,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 667 states. [2019-11-20 11:31:08,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 991 transitions. [2019-11-20 11:31:08,791 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 991 transitions. Word has length 20 [2019-11-20 11:31:08,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:08,791 INFO L462 AbstractCegarLoop]: Abstraction has 667 states and 991 transitions. [2019-11-20 11:31:08,792 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 11:31:08,792 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 991 transitions. [2019-11-20 11:31:08,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-20 11:31:08,793 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:08,793 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1] [2019-11-20 11:31:08,998 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:08,998 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]=== [2019-11-20 11:31:08,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:08,999 INFO L82 PathProgramCache]: Analyzing trace with hash 2023206598, now seen corresponding path program 2 times [2019-11-20 11:31:08,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:08,999 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643831246] [2019-11-20 11:31:08,999 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:09,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:09,053 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:09,053 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643831246] [2019-11-20 11:31:09,054 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207604085] [2019-11-20 11:31:09,054 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/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 [2019-11-20 11:31:09,094 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 11:31:09,094 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 11:31:09,095 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 11:31:09,097 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:09,105 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:09,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:09,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2019-11-20 11:31:09,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868160427] [2019-11-20 11:31:09,107 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 11:31:09,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:09,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 11:31:09,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:31:09,107 INFO L87 Difference]: Start difference. First operand 667 states and 991 transitions. Second operand 5 states. [2019-11-20 11:31:09,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:09,174 INFO L93 Difference]: Finished difference Result 1152 states and 1729 transitions. [2019-11-20 11:31:09,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 11:31:09,175 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2019-11-20 11:31:09,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:09,182 INFO L225 Difference]: With dead ends: 1152 [2019-11-20 11:31:09,182 INFO L226 Difference]: Without dead ends: 1150 [2019-11-20 11:31:09,183 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:31:09,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2019-11-20 11:31:09,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 913. [2019-11-20 11:31:09,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 913 states. [2019-11-20 11:31:09,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1351 transitions. [2019-11-20 11:31:09,214 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1351 transitions. Word has length 21 [2019-11-20 11:31:09,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:09,214 INFO L462 AbstractCegarLoop]: Abstraction has 913 states and 1351 transitions. [2019-11-20 11:31:09,214 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 11:31:09,215 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1351 transitions. [2019-11-20 11:31:09,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-20 11:31:09,215 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:09,216 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2019-11-20 11:31:09,428 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:09,428 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]=== [2019-11-20 11:31:09,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:09,428 INFO L82 PathProgramCache]: Analyzing trace with hash 759881029, now seen corresponding path program 1 times [2019-11-20 11:31:09,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:09,429 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539229664] [2019-11-20 11:31:09,429 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:09,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:09,481 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:09,481 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539229664] [2019-11-20 11:31:09,481 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485353191] [2019-11-20 11:31:09,481 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/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 [2019-11-20 11:31:09,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:09,520 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 11:31:09,523 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:09,533 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:09,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:09,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-11-20 11:31:09,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136317728] [2019-11-20 11:31:09,538 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 11:31:09,540 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:09,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 11:31:09,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 11:31:09,542 INFO L87 Difference]: Start difference. First operand 913 states and 1351 transitions. Second operand 4 states. [2019-11-20 11:31:09,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:09,601 INFO L93 Difference]: Finished difference Result 1557 states and 2328 transitions. [2019-11-20 11:31:09,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 11:31:09,602 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2019-11-20 11:31:09,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:09,612 INFO L225 Difference]: With dead ends: 1557 [2019-11-20 11:31:09,612 INFO L226 Difference]: Without dead ends: 1556 [2019-11-20 11:31:09,615 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 11:31:09,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2019-11-20 11:31:09,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1193. [2019-11-20 11:31:09,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1193 states. [2019-11-20 11:31:09,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1768 transitions. [2019-11-20 11:31:09,659 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1768 transitions. Word has length 21 [2019-11-20 11:31:09,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:09,660 INFO L462 AbstractCegarLoop]: Abstraction has 1193 states and 1768 transitions. [2019-11-20 11:31:09,660 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 11:31:09,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1768 transitions. [2019-11-20 11:31:09,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 11:31:09,661 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:09,662 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1] [2019-11-20 11:31:09,865 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:09,865 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]=== [2019-11-20 11:31:09,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:09,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1092753757, now seen corresponding path program 2 times [2019-11-20 11:31:09,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:09,866 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826284030] [2019-11-20 11:31:09,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:09,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:09,920 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:09,920 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826284030] [2019-11-20 11:31:09,920 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902928952] [2019-11-20 11:31:09,920 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/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 [2019-11-20 11:31:09,955 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 11:31:09,956 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 11:31:09,956 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 11:31:09,958 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:09,966 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:09,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:09,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2019-11-20 11:31:09,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723503682] [2019-11-20 11:31:09,967 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 11:31:09,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:09,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 11:31:09,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:31:09,968 INFO L87 Difference]: Start difference. First operand 1193 states and 1768 transitions. Second operand 5 states. [2019-11-20 11:31:10,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:10,063 INFO L93 Difference]: Finished difference Result 1951 states and 2902 transitions. [2019-11-20 11:31:10,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 11:31:10,063 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-20 11:31:10,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:10,075 INFO L225 Difference]: With dead ends: 1951 [2019-11-20 11:31:10,075 INFO L226 Difference]: Without dead ends: 1950 [2019-11-20 11:31:10,077 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:31:10,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2019-11-20 11:31:10,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1429. [2019-11-20 11:31:10,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1429 states. [2019-11-20 11:31:10,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 2114 transitions. [2019-11-20 11:31:10,129 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 2114 transitions. Word has length 25 [2019-11-20 11:31:10,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:10,129 INFO L462 AbstractCegarLoop]: Abstraction has 1429 states and 2114 transitions. [2019-11-20 11:31:10,129 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 11:31:10,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 2114 transitions. [2019-11-20 11:31:10,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 11:31:10,131 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:10,131 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1] [2019-11-20 11:31:10,338 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:10,338 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]=== [2019-11-20 11:31:10,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:10,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1883170607, now seen corresponding path program 2 times [2019-11-20 11:31:10,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:10,339 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510428293] [2019-11-20 11:31:10,339 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:10,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:10,380 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:10,380 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510428293] [2019-11-20 11:31:10,380 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51417395] [2019-11-20 11:31:10,381 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/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 [2019-11-20 11:31:10,406 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 11:31:10,407 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 11:31:10,407 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 11:31:10,408 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:10,411 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:10,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:10,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2019-11-20 11:31:10,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117491377] [2019-11-20 11:31:10,413 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 11:31:10,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:10,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 11:31:10,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:31:10,413 INFO L87 Difference]: Start difference. First operand 1429 states and 2114 transitions. Second operand 5 states. [2019-11-20 11:31:10,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:10,480 INFO L93 Difference]: Finished difference Result 2462 states and 3693 transitions. [2019-11-20 11:31:10,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 11:31:10,480 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-11-20 11:31:10,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:10,494 INFO L225 Difference]: With dead ends: 2462 [2019-11-20 11:31:10,495 INFO L226 Difference]: Without dead ends: 2460 [2019-11-20 11:31:10,497 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:31:10,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2460 states. [2019-11-20 11:31:10,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2460 to 1959. [2019-11-20 11:31:10,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1959 states. [2019-11-20 11:31:10,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 2882 transitions. [2019-11-20 11:31:10,558 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 2882 transitions. Word has length 27 [2019-11-20 11:31:10,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:10,558 INFO L462 AbstractCegarLoop]: Abstraction has 1959 states and 2882 transitions. [2019-11-20 11:31:10,558 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 11:31:10,558 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 2882 transitions. [2019-11-20 11:31:10,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 11:31:10,559 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:10,559 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 1, 1] [2019-11-20 11:31:10,771 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:10,771 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]=== [2019-11-20 11:31:10,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:10,771 INFO L82 PathProgramCache]: Analyzing trace with hash -748146377, now seen corresponding path program 3 times [2019-11-20 11:31:10,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:10,771 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849348187] [2019-11-20 11:31:10,772 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:10,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:10,824 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:10,824 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849348187] [2019-11-20 11:31:10,824 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824943973] [2019-11-20 11:31:10,824 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/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 [2019-11-20 11:31:10,864 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-11-20 11:31:10,864 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 11:31:10,865 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 11:31:10,868 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:10,873 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:10,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:10,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-20 11:31:10,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683392692] [2019-11-20 11:31:10,876 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 11:31:10,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:10,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 11:31:10,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-20 11:31:10,877 INFO L87 Difference]: Start difference. First operand 1959 states and 2882 transitions. Second operand 6 states. [2019-11-20 11:31:10,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:10,967 INFO L93 Difference]: Finished difference Result 3173 states and 4732 transitions. [2019-11-20 11:31:10,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 11:31:10,968 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2019-11-20 11:31:10,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:10,987 INFO L225 Difference]: With dead ends: 3173 [2019-11-20 11:31:10,987 INFO L226 Difference]: Without dead ends: 3171 [2019-11-20 11:31:10,990 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-20 11:31:10,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3171 states. [2019-11-20 11:31:11,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3171 to 2563. [2019-11-20 11:31:11,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2563 states. [2019-11-20 11:31:11,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2563 states to 2563 states and 3749 transitions. [2019-11-20 11:31:11,067 INFO L78 Accepts]: Start accepts. Automaton has 2563 states and 3749 transitions. Word has length 28 [2019-11-20 11:31:11,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:11,067 INFO L462 AbstractCegarLoop]: Abstraction has 2563 states and 3749 transitions. [2019-11-20 11:31:11,067 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 11:31:11,067 INFO L276 IsEmpty]: Start isEmpty. Operand 2563 states and 3749 transitions. [2019-11-20 11:31:11,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-20 11:31:11,068 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:11,069 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1] [2019-11-20 11:31:11,272 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:11,272 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]=== [2019-11-20 11:31:11,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:11,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1682870728, now seen corresponding path program 2 times [2019-11-20 11:31:11,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:11,273 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443151752] [2019-11-20 11:31:11,273 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:11,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:11,312 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:11,313 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443151752] [2019-11-20 11:31:11,313 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19525285] [2019-11-20 11:31:11,313 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/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 [2019-11-20 11:31:11,354 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 11:31:11,354 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 11:31:11,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 11:31:11,356 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:11,361 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:11,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:11,361 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2019-11-20 11:31:11,361 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109970873] [2019-11-20 11:31:11,362 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 11:31:11,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:11,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 11:31:11,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:31:11,362 INFO L87 Difference]: Start difference. First operand 2563 states and 3749 transitions. Second operand 5 states. [2019-11-20 11:31:11,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:11,446 INFO L93 Difference]: Finished difference Result 4182 states and 6155 transitions. [2019-11-20 11:31:11,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 11:31:11,447 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-11-20 11:31:11,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:11,469 INFO L225 Difference]: With dead ends: 4182 [2019-11-20 11:31:11,469 INFO L226 Difference]: Without dead ends: 4181 [2019-11-20 11:31:11,473 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:31:11,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4181 states. [2019-11-20 11:31:11,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4181 to 3071. [2019-11-20 11:31:11,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3071 states. [2019-11-20 11:31:11,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3071 states to 3071 states and 4483 transitions. [2019-11-20 11:31:11,560 INFO L78 Accepts]: Start accepts. Automaton has 3071 states and 4483 transitions. Word has length 31 [2019-11-20 11:31:11,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:11,561 INFO L462 AbstractCegarLoop]: Abstraction has 3071 states and 4483 transitions. [2019-11-20 11:31:11,561 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 11:31:11,561 INFO L276 IsEmpty]: Start isEmpty. Operand 3071 states and 4483 transitions. [2019-11-20 11:31:11,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-20 11:31:11,562 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:11,562 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 1, 1] [2019-11-20 11:31:11,774 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:11,774 INFO L410 AbstractCegarLoop]: === Iteration 20 === [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]=== [2019-11-20 11:31:11,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:11,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1047523897, now seen corresponding path program 3 times [2019-11-20 11:31:11,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:11,775 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87883531] [2019-11-20 11:31:11,775 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:11,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:11,824 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:11,824 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87883531] [2019-11-20 11:31:11,824 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95599467] [2019-11-20 11:31:11,824 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:11,858 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-11-20 11:31:11,858 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 11:31:11,859 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 11:31:11,860 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:11,866 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:11,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:11,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-20 11:31:11,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072746337] [2019-11-20 11:31:11,868 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 11:31:11,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:11,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 11:31:11,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-20 11:31:11,869 INFO L87 Difference]: Start difference. First operand 3071 states and 4483 transitions. Second operand 6 states. [2019-11-20 11:31:11,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:11,976 INFO L93 Difference]: Finished difference Result 4727 states and 6947 transitions. [2019-11-20 11:31:11,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 11:31:11,976 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-11-20 11:31:11,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:12,002 INFO L225 Difference]: With dead ends: 4727 [2019-11-20 11:31:12,003 INFO L226 Difference]: Without dead ends: 4726 [2019-11-20 11:31:12,007 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-20 11:31:12,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4726 states. [2019-11-20 11:31:12,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4726 to 3459. [2019-11-20 11:31:12,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3459 states. [2019-11-20 11:31:12,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3459 states to 3459 states and 5047 transitions. [2019-11-20 11:31:12,099 INFO L78 Accepts]: Start accepts. Automaton has 3459 states and 5047 transitions. Word has length 33 [2019-11-20 11:31:12,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:12,099 INFO L462 AbstractCegarLoop]: Abstraction has 3459 states and 5047 transitions. [2019-11-20 11:31:12,099 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 11:31:12,099 INFO L276 IsEmpty]: Start isEmpty. Operand 3459 states and 5047 transitions. [2019-11-20 11:31:12,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-20 11:31:12,101 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:12,101 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 1, 1] [2019-11-20 11:31:12,304 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:12,304 INFO L410 AbstractCegarLoop]: === Iteration 21 === [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]=== [2019-11-20 11:31:12,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:12,305 INFO L82 PathProgramCache]: Analyzing trace with hash -507101786, now seen corresponding path program 4 times [2019-11-20 11:31:12,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:12,305 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699846468] [2019-11-20 11:31:12,306 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:12,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:12,375 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:12,375 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699846468] [2019-11-20 11:31:12,375 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458481157] [2019-11-20 11:31:12,375 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:12,422 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-20 11:31:12,423 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 11:31:12,424 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 11:31:12,425 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:12,431 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:12,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:12,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2019-11-20 11:31:12,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072275234] [2019-11-20 11:31:12,433 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 11:31:12,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:12,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 11:31:12,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-20 11:31:12,434 INFO L87 Difference]: Start difference. First operand 3459 states and 5047 transitions. Second operand 7 states. [2019-11-20 11:31:12,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:12,546 INFO L93 Difference]: Finished difference Result 5326 states and 7884 transitions. [2019-11-20 11:31:12,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 11:31:12,547 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-11-20 11:31:12,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:12,586 INFO L225 Difference]: With dead ends: 5326 [2019-11-20 11:31:12,589 INFO L226 Difference]: Without dead ends: 5324 [2019-11-20 11:31:12,594 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-20 11:31:12,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5324 states. [2019-11-20 11:31:12,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5324 to 4377. [2019-11-20 11:31:12,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4377 states. [2019-11-20 11:31:12,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4377 states to 4377 states and 6353 transitions. [2019-11-20 11:31:12,726 INFO L78 Accepts]: Start accepts. Automaton has 4377 states and 6353 transitions. Word has length 35 [2019-11-20 11:31:12,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:12,726 INFO L462 AbstractCegarLoop]: Abstraction has 4377 states and 6353 transitions. [2019-11-20 11:31:12,727 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 11:31:12,727 INFO L276 IsEmpty]: Start isEmpty. Operand 4377 states and 6353 transitions. [2019-11-20 11:31:12,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-20 11:31:12,729 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:12,729 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1] [2019-11-20 11:31:12,933 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:12,933 INFO L410 AbstractCegarLoop]: === Iteration 22 === [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]=== [2019-11-20 11:31:12,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:12,934 INFO L82 PathProgramCache]: Analyzing trace with hash -32854327, now seen corresponding path program 3 times [2019-11-20 11:31:12,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:12,934 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829277967] [2019-11-20 11:31:12,934 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:12,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:13,000 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:13,000 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829277967] [2019-11-20 11:31:13,001 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761680089] [2019-11-20 11:31:13,001 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:13,040 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-11-20 11:31:13,040 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 11:31:13,041 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 11:31:13,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:13,058 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:13,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:13,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-20 11:31:13,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793555468] [2019-11-20 11:31:13,059 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 11:31:13,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:13,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 11:31:13,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-20 11:31:13,060 INFO L87 Difference]: Start difference. First operand 4377 states and 6353 transitions. Second operand 6 states. [2019-11-20 11:31:13,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:13,225 INFO L93 Difference]: Finished difference Result 7069 states and 10425 transitions. [2019-11-20 11:31:13,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 11:31:13,226 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2019-11-20 11:31:13,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:13,241 INFO L225 Difference]: With dead ends: 7069 [2019-11-20 11:31:13,241 INFO L226 Difference]: Without dead ends: 7067 [2019-11-20 11:31:13,248 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-20 11:31:13,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7067 states. [2019-11-20 11:31:13,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7067 to 5729. [2019-11-20 11:31:13,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5729 states. [2019-11-20 11:31:13,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5729 states to 5729 states and 8265 transitions. [2019-11-20 11:31:13,387 INFO L78 Accepts]: Start accepts. Automaton has 5729 states and 8265 transitions. Word has length 36 [2019-11-20 11:31:13,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:13,387 INFO L462 AbstractCegarLoop]: Abstraction has 5729 states and 8265 transitions. [2019-11-20 11:31:13,388 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 11:31:13,388 INFO L276 IsEmpty]: Start isEmpty. Operand 5729 states and 8265 transitions. [2019-11-20 11:31:13,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-20 11:31:13,390 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:13,390 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1] [2019-11-20 11:31:13,594 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:13,594 INFO L410 AbstractCegarLoop]: === Iteration 23 === [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]=== [2019-11-20 11:31:13,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:13,595 INFO L82 PathProgramCache]: Analyzing trace with hash -1137071253, now seen corresponding path program 3 times [2019-11-20 11:31:13,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:13,595 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591656731] [2019-11-20 11:31:13,595 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:13,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:13,655 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:13,655 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591656731] [2019-11-20 11:31:13,656 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093427264] [2019-11-20 11:31:13,656 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:13,706 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-11-20 11:31:13,706 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 11:31:13,707 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 11:31:13,709 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:13,715 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:13,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:13,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-20 11:31:13,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654005450] [2019-11-20 11:31:13,716 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 11:31:13,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:13,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 11:31:13,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-20 11:31:13,717 INFO L87 Difference]: Start difference. First operand 5729 states and 8265 transitions. Second operand 6 states. [2019-11-20 11:31:13,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:13,839 INFO L93 Difference]: Finished difference Result 8806 states and 12809 transitions. [2019-11-20 11:31:13,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 11:31:13,840 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 41 [2019-11-20 11:31:13,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:13,857 INFO L225 Difference]: With dead ends: 8806 [2019-11-20 11:31:13,858 INFO L226 Difference]: Without dead ends: 8805 [2019-11-20 11:31:13,865 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-20 11:31:13,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8805 states. [2019-11-20 11:31:13,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8805 to 6453. [2019-11-20 11:31:13,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6453 states. [2019-11-20 11:31:13,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6453 states to 6453 states and 9305 transitions. [2019-11-20 11:31:14,000 INFO L78 Accepts]: Start accepts. Automaton has 6453 states and 9305 transitions. Word has length 41 [2019-11-20 11:31:14,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:14,000 INFO L462 AbstractCegarLoop]: Abstraction has 6453 states and 9305 transitions. [2019-11-20 11:31:14,000 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 11:31:14,001 INFO L276 IsEmpty]: Start isEmpty. Operand 6453 states and 9305 transitions. [2019-11-20 11:31:14,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-20 11:31:14,002 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:14,003 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 1, 1] [2019-11-20 11:31:14,206 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:14,206 INFO L410 AbstractCegarLoop]: === Iteration 24 === [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]=== [2019-11-20 11:31:14,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:14,207 INFO L82 PathProgramCache]: Analyzing trace with hash 589297713, now seen corresponding path program 4 times [2019-11-20 11:31:14,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:14,207 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165538418] [2019-11-20 11:31:14,207 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:14,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:14,260 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:14,260 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165538418] [2019-11-20 11:31:14,260 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120277987] [2019-11-20 11:31:14,260 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:14,310 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-20 11:31:14,310 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 11:31:14,311 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 11:31:14,312 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:14,322 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:14,322 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:14,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2019-11-20 11:31:14,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074269787] [2019-11-20 11:31:14,323 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 11:31:14,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:14,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 11:31:14,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-20 11:31:14,324 INFO L87 Difference]: Start difference. First operand 6453 states and 9305 transitions. Second operand 7 states. [2019-11-20 11:31:14,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:14,460 INFO L93 Difference]: Finished difference Result 9500 states and 13815 transitions. [2019-11-20 11:31:14,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 11:31:14,460 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2019-11-20 11:31:14,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:14,480 INFO L225 Difference]: With dead ends: 9500 [2019-11-20 11:31:14,480 INFO L226 Difference]: Without dead ends: 9499 [2019-11-20 11:31:14,489 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-20 11:31:14,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9499 states. [2019-11-20 11:31:14,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9499 to 7025. [2019-11-20 11:31:14,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7025 states. [2019-11-20 11:31:14,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7025 states to 7025 states and 10131 transitions. [2019-11-20 11:31:14,631 INFO L78 Accepts]: Start accepts. Automaton has 7025 states and 10131 transitions. Word has length 41 [2019-11-20 11:31:14,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:14,631 INFO L462 AbstractCegarLoop]: Abstraction has 7025 states and 10131 transitions. [2019-11-20 11:31:14,631 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 11:31:14,632 INFO L276 IsEmpty]: Start isEmpty. Operand 7025 states and 10131 transitions. [2019-11-20 11:31:14,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-11-20 11:31:14,633 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:14,634 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 1, 1] [2019-11-20 11:31:14,838 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:14,838 INFO L410 AbstractCegarLoop]: === Iteration 25 === [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]=== [2019-11-20 11:31:14,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:14,838 INFO L82 PathProgramCache]: Analyzing trace with hash 644163159, now seen corresponding path program 5 times [2019-11-20 11:31:14,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:14,839 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57176163] [2019-11-20 11:31:14,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:14,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:14,895 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:14,895 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57176163] [2019-11-20 11:31:14,895 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655729680] [2019-11-20 11:31:14,895 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:14,940 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-11-20 11:31:14,940 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 11:31:14,942 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 11:31:14,943 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:14,957 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:14,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:14,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2019-11-20 11:31:14,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704196532] [2019-11-20 11:31:14,958 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 11:31:14,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:14,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 11:31:14,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-11-20 11:31:14,959 INFO L87 Difference]: Start difference. First operand 7025 states and 10131 transitions. Second operand 8 states. [2019-11-20 11:31:15,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:15,098 INFO L93 Difference]: Finished difference Result 10381 states and 15206 transitions. [2019-11-20 11:31:15,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 11:31:15,099 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2019-11-20 11:31:15,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:15,126 INFO L225 Difference]: With dead ends: 10381 [2019-11-20 11:31:15,126 INFO L226 Difference]: Without dead ends: 10379 [2019-11-20 11:31:15,136 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-11-20 11:31:15,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10379 states. [2019-11-20 11:31:15,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10379 to 8665. [2019-11-20 11:31:15,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8665 states. [2019-11-20 11:31:15,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8665 states to 8665 states and 12438 transitions. [2019-11-20 11:31:15,388 INFO L78 Accepts]: Start accepts. Automaton has 8665 states and 12438 transitions. Word has length 42 [2019-11-20 11:31:15,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:15,388 INFO L462 AbstractCegarLoop]: Abstraction has 8665 states and 12438 transitions. [2019-11-20 11:31:15,389 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 11:31:15,389 INFO L276 IsEmpty]: Start isEmpty. Operand 8665 states and 12438 transitions. [2019-11-20 11:31:15,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-11-20 11:31:15,391 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:15,391 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1] [2019-11-20 11:31:15,595 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:15,597 INFO L410 AbstractCegarLoop]: === Iteration 26 === [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]=== [2019-11-20 11:31:15,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:15,597 INFO L82 PathProgramCache]: Analyzing trace with hash -809708433, now seen corresponding path program 4 times [2019-11-20 11:31:15,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:15,598 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721212344] [2019-11-20 11:31:15,598 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:15,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:15,671 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:15,671 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721212344] [2019-11-20 11:31:15,672 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247614658] [2019-11-20 11:31:15,672 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:15,718 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-20 11:31:15,719 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 11:31:15,720 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 11:31:15,721 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:15,728 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:15,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:15,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2019-11-20 11:31:15,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566381994] [2019-11-20 11:31:15,729 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 11:31:15,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:15,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 11:31:15,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-20 11:31:15,730 INFO L87 Difference]: Start difference. First operand 8665 states and 12438 transitions. Second operand 7 states. [2019-11-20 11:31:15,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:15,879 INFO L93 Difference]: Finished difference Result 13312 states and 19429 transitions. [2019-11-20 11:31:15,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 11:31:15,880 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2019-11-20 11:31:15,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:15,918 INFO L225 Difference]: With dead ends: 13312 [2019-11-20 11:31:15,919 INFO L226 Difference]: Without dead ends: 13310 [2019-11-20 11:31:15,924 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-20 11:31:15,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13310 states. [2019-11-20 11:31:16,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13310 to 10967. [2019-11-20 11:31:16,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10967 states. [2019-11-20 11:31:16,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10967 states to 10967 states and 15657 transitions. [2019-11-20 11:31:16,128 INFO L78 Accepts]: Start accepts. Automaton has 10967 states and 15657 transitions. Word has length 45 [2019-11-20 11:31:16,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:16,128 INFO L462 AbstractCegarLoop]: Abstraction has 10967 states and 15657 transitions. [2019-11-20 11:31:16,128 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 11:31:16,128 INFO L276 IsEmpty]: Start isEmpty. Operand 10967 states and 15657 transitions. [2019-11-20 11:31:16,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-11-20 11:31:16,131 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:16,131 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 1, 1] [2019-11-20 11:31:16,334 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:16,334 INFO L410 AbstractCegarLoop]: === Iteration 27 === [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]=== [2019-11-20 11:31:16,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:16,335 INFO L82 PathProgramCache]: Analyzing trace with hash -144620410, now seen corresponding path program 6 times [2019-11-20 11:31:16,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:16,335 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932258391] [2019-11-20 11:31:16,335 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:16,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:16,430 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:16,430 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932258391] [2019-11-20 11:31:16,431 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548033654] [2019-11-20 11:31:16,431 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:16,470 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-11-20 11:31:16,471 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 11:31:16,471 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 11:31:16,472 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:16,482 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:16,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:16,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2019-11-20 11:31:16,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361307941] [2019-11-20 11:31:16,485 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 11:31:16,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:16,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 11:31:16,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-11-20 11:31:16,486 INFO L87 Difference]: Start difference. First operand 10967 states and 15657 transitions. Second operand 9 states. [2019-11-20 11:31:16,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:16,664 INFO L93 Difference]: Finished difference Result 15622 states and 22665 transitions. [2019-11-20 11:31:16,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 11:31:16,665 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2019-11-20 11:31:16,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:16,696 INFO L225 Difference]: With dead ends: 15622 [2019-11-20 11:31:16,696 INFO L226 Difference]: Without dead ends: 15620 [2019-11-20 11:31:16,701 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-11-20 11:31:16,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15620 states. [2019-11-20 11:31:16,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15620 to 13091. [2019-11-20 11:31:16,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13091 states. [2019-11-20 11:31:16,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13091 states to 13091 states and 18609 transitions. [2019-11-20 11:31:16,931 INFO L78 Accepts]: Start accepts. Automaton has 13091 states and 18609 transitions. Word has length 49 [2019-11-20 11:31:16,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:16,931 INFO L462 AbstractCegarLoop]: Abstraction has 13091 states and 18609 transitions. [2019-11-20 11:31:16,932 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 11:31:16,932 INFO L276 IsEmpty]: Start isEmpty. Operand 13091 states and 18609 transitions. [2019-11-20 11:31:16,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-11-20 11:31:16,935 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:16,935 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 1, 1] [2019-11-20 11:31:17,138 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:17,139 INFO L410 AbstractCegarLoop]: === Iteration 28 === [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]=== [2019-11-20 11:31:17,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:17,139 INFO L82 PathProgramCache]: Analyzing trace with hash 2004605083, now seen corresponding path program 5 times [2019-11-20 11:31:17,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:17,139 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92405277] [2019-11-20 11:31:17,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:17,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:17,212 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:17,212 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92405277] [2019-11-20 11:31:17,212 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454291647] [2019-11-20 11:31:17,213 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:17,253 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-11-20 11:31:17,253 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 11:31:17,254 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 11:31:17,255 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:17,266 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:17,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:17,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2019-11-20 11:31:17,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161267873] [2019-11-20 11:31:17,268 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 11:31:17,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:17,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 11:31:17,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-11-20 11:31:17,269 INFO L87 Difference]: Start difference. First operand 13091 states and 18609 transitions. Second operand 8 states. [2019-11-20 11:31:17,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:17,544 INFO L93 Difference]: Finished difference Result 19890 states and 28521 transitions. [2019-11-20 11:31:17,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 11:31:17,545 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2019-11-20 11:31:17,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:17,577 INFO L225 Difference]: With dead ends: 19890 [2019-11-20 11:31:17,578 INFO L226 Difference]: Without dead ends: 19889 [2019-11-20 11:31:17,584 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-11-20 11:31:17,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19889 states. [2019-11-20 11:31:17,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19889 to 14129. [2019-11-20 11:31:17,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14129 states. [2019-11-20 11:31:17,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14129 states to 14129 states and 20097 transitions. [2019-11-20 11:31:17,843 INFO L78 Accepts]: Start accepts. Automaton has 14129 states and 20097 transitions. Word has length 49 [2019-11-20 11:31:17,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:17,844 INFO L462 AbstractCegarLoop]: Abstraction has 14129 states and 20097 transitions. [2019-11-20 11:31:17,844 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 11:31:17,844 INFO L276 IsEmpty]: Start isEmpty. Operand 14129 states and 20097 transitions. [2019-11-20 11:31:17,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-11-20 11:31:17,847 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:17,847 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1] [2019-11-20 11:31:18,050 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:18,051 INFO L410 AbstractCegarLoop]: === Iteration 29 === [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]=== [2019-11-20 11:31:18,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:18,051 INFO L82 PathProgramCache]: Analyzing trace with hash -85375778, now seen corresponding path program 4 times [2019-11-20 11:31:18,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:18,051 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792494382] [2019-11-20 11:31:18,052 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:18,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:18,103 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:18,104 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792494382] [2019-11-20 11:31:18,104 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692010862] [2019-11-20 11:31:18,104 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:18,140 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-20 11:31:18,140 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 11:31:18,141 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 11:31:18,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:18,151 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:18,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:18,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2019-11-20 11:31:18,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624256635] [2019-11-20 11:31:18,152 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 11:31:18,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:18,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 11:31:18,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-20 11:31:18,152 INFO L87 Difference]: Start difference. First operand 14129 states and 20097 transitions. Second operand 7 states. [2019-11-20 11:31:18,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:18,363 INFO L93 Difference]: Finished difference Result 20774 states and 29837 transitions. [2019-11-20 11:31:18,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 11:31:18,364 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-11-20 11:31:18,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:18,391 INFO L225 Difference]: With dead ends: 20774 [2019-11-20 11:31:18,391 INFO L226 Difference]: Without dead ends: 20773 [2019-11-20 11:31:18,399 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-20 11:31:18,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20773 states. [2019-11-20 11:31:18,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20773 to 15381. [2019-11-20 11:31:18,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15381 states. [2019-11-20 11:31:18,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15381 states to 15381 states and 21881 transitions. [2019-11-20 11:31:18,659 INFO L78 Accepts]: Start accepts. Automaton has 15381 states and 21881 transitions. Word has length 51 [2019-11-20 11:31:18,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:18,659 INFO L462 AbstractCegarLoop]: Abstraction has 15381 states and 21881 transitions. [2019-11-20 11:31:18,660 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 11:31:18,660 INFO L276 IsEmpty]: Start isEmpty. Operand 15381 states and 21881 transitions. [2019-11-20 11:31:18,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-11-20 11:31:18,663 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:18,663 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 1, 1] [2019-11-20 11:31:18,866 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:18,867 INFO L410 AbstractCegarLoop]: === Iteration 30 === [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]=== [2019-11-20 11:31:18,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:18,867 INFO L82 PathProgramCache]: Analyzing trace with hash -884758135, now seen corresponding path program 5 times [2019-11-20 11:31:18,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:18,867 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611145366] [2019-11-20 11:31:18,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:18,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:18,947 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:18,948 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611145366] [2019-11-20 11:31:18,948 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853228898] [2019-11-20 11:31:18,948 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:18,991 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-11-20 11:31:18,991 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 11:31:18,992 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 11:31:18,993 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:19,001 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:19,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:19,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2019-11-20 11:31:19,002 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977728202] [2019-11-20 11:31:19,004 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 11:31:19,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:19,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 11:31:19,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-11-20 11:31:19,005 INFO L87 Difference]: Start difference. First operand 15381 states and 21881 transitions. Second operand 8 states. [2019-11-20 11:31:19,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:19,271 INFO L93 Difference]: Finished difference Result 22697 states and 32841 transitions. [2019-11-20 11:31:19,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 11:31:19,272 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2019-11-20 11:31:19,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:19,303 INFO L225 Difference]: With dead ends: 22697 [2019-11-20 11:31:19,303 INFO L226 Difference]: Without dead ends: 22695 [2019-11-20 11:31:19,312 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-11-20 11:31:19,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22695 states. [2019-11-20 11:31:19,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22695 to 18973. [2019-11-20 11:31:19,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18973 states. [2019-11-20 11:31:19,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18973 states to 18973 states and 26864 transitions. [2019-11-20 11:31:19,664 INFO L78 Accepts]: Start accepts. Automaton has 18973 states and 26864 transitions. Word has length 54 [2019-11-20 11:31:19,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:19,665 INFO L462 AbstractCegarLoop]: Abstraction has 18973 states and 26864 transitions. [2019-11-20 11:31:19,665 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 11:31:19,665 INFO L276 IsEmpty]: Start isEmpty. Operand 18973 states and 26864 transitions. [2019-11-20 11:31:19,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-20 11:31:19,669 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:19,669 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 1, 1] [2019-11-20 11:31:19,871 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:19,872 INFO L410 AbstractCegarLoop]: === Iteration 31 === [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]=== [2019-11-20 11:31:19,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:19,872 INFO L82 PathProgramCache]: Analyzing trace with hash -931224713, now seen corresponding path program 7 times [2019-11-20 11:31:19,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:19,872 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458690309] [2019-11-20 11:31:19,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:19,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:19,971 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:19,972 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458690309] [2019-11-20 11:31:19,972 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487141426] [2019-11-20 11:31:19,972 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:20,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:20,019 INFO L255 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 11:31:20,020 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:20,030 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:20,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:20,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2019-11-20 11:31:20,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647300138] [2019-11-20 11:31:20,032 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 11:31:20,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:20,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 11:31:20,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-11-20 11:31:20,033 INFO L87 Difference]: Start difference. First operand 18973 states and 26864 transitions. Second operand 10 states. [2019-11-20 11:31:20,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:20,276 INFO L93 Difference]: Finished difference Result 26251 states and 37778 transitions. [2019-11-20 11:31:20,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-20 11:31:20,277 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 56 [2019-11-20 11:31:20,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:20,309 INFO L225 Difference]: With dead ends: 26251 [2019-11-20 11:31:20,309 INFO L226 Difference]: Without dead ends: 26249 [2019-11-20 11:31:20,317 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-11-20 11:31:20,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26249 states. [2019-11-20 11:31:20,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26249 to 22311. [2019-11-20 11:31:20,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22311 states. [2019-11-20 11:31:20,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22311 states to 22311 states and 31473 transitions. [2019-11-20 11:31:20,670 INFO L78 Accepts]: Start accepts. Automaton has 22311 states and 31473 transitions. Word has length 56 [2019-11-20 11:31:20,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:20,670 INFO L462 AbstractCegarLoop]: Abstraction has 22311 states and 31473 transitions. [2019-11-20 11:31:20,671 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 11:31:20,671 INFO L276 IsEmpty]: Start isEmpty. Operand 22311 states and 31473 transitions. [2019-11-20 11:31:20,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-11-20 11:31:20,674 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:20,674 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 1, 1] [2019-11-20 11:31:20,877 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:20,878 INFO L410 AbstractCegarLoop]: === Iteration 32 === [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]=== [2019-11-20 11:31:20,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:20,878 INFO L82 PathProgramCache]: Analyzing trace with hash -2041729275, now seen corresponding path program 6 times [2019-11-20 11:31:20,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:20,878 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957397304] [2019-11-20 11:31:20,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:20,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:20,963 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:20,963 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957397304] [2019-11-20 11:31:20,963 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494391405] [2019-11-20 11:31:20,963 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:21,011 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-11-20 11:31:21,012 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 11:31:21,013 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 11:31:21,014 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:21,025 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:21,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:21,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2019-11-20 11:31:21,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664568295] [2019-11-20 11:31:21,026 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 11:31:21,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:21,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 11:31:21,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-11-20 11:31:21,028 INFO L87 Difference]: Start difference. First operand 22311 states and 31473 transitions. Second operand 9 states. [2019-11-20 11:31:21,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:21,452 INFO L93 Difference]: Finished difference Result 32955 states and 46932 transitions. [2019-11-20 11:31:21,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 11:31:21,452 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 57 [2019-11-20 11:31:21,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:21,484 INFO L225 Difference]: With dead ends: 32955 [2019-11-20 11:31:21,485 INFO L226 Difference]: Without dead ends: 32954 [2019-11-20 11:31:21,494 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-11-20 11:31:21,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32954 states. [2019-11-20 11:31:21,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32954 to 23705. [2019-11-20 11:31:21,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23705 states. [2019-11-20 11:31:21,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23705 states to 23705 states and 33462 transitions. [2019-11-20 11:31:21,858 INFO L78 Accepts]: Start accepts. Automaton has 23705 states and 33462 transitions. Word has length 57 [2019-11-20 11:31:21,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:21,859 INFO L462 AbstractCegarLoop]: Abstraction has 23705 states and 33462 transitions. [2019-11-20 11:31:21,859 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 11:31:21,859 INFO L276 IsEmpty]: Start isEmpty. Operand 23705 states and 33462 transitions. [2019-11-20 11:31:21,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-11-20 11:31:21,862 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:21,862 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 1, 1] [2019-11-20 11:31:22,062 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:22,063 INFO L410 AbstractCegarLoop]: === Iteration 33 === [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]=== [2019-11-20 11:31:22,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:22,063 INFO L82 PathProgramCache]: Analyzing trace with hash 2087316113, now seen corresponding path program 5 times [2019-11-20 11:31:22,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:22,063 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090253494] [2019-11-20 11:31:22,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:22,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:22,128 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:22,128 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090253494] [2019-11-20 11:31:22,128 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870835642] [2019-11-20 11:31:22,128 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:22,168 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-11-20 11:31:22,168 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 11:31:22,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 11:31:22,170 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:22,180 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:22,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:22,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2019-11-20 11:31:22,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320653995] [2019-11-20 11:31:22,182 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 11:31:22,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:22,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 11:31:22,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-11-20 11:31:22,182 INFO L87 Difference]: Start difference. First operand 23705 states and 33462 transitions. Second operand 8 states. [2019-11-20 11:31:22,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:22,462 INFO L93 Difference]: Finished difference Result 33669 states and 48018 transitions. [2019-11-20 11:31:22,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 11:31:22,462 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2019-11-20 11:31:22,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:22,508 INFO L225 Difference]: With dead ends: 33669 [2019-11-20 11:31:22,509 INFO L226 Difference]: Without dead ends: 33668 [2019-11-20 11:31:22,519 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-11-20 11:31:22,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33668 states. [2019-11-20 11:31:22,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33668 to 25269. [2019-11-20 11:31:22,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25269 states. [2019-11-20 11:31:23,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25269 states to 25269 states and 35684 transitions. [2019-11-20 11:31:23,032 INFO L78 Accepts]: Start accepts. Automaton has 25269 states and 35684 transitions. Word has length 61 [2019-11-20 11:31:23,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:23,032 INFO L462 AbstractCegarLoop]: Abstraction has 25269 states and 35684 transitions. [2019-11-20 11:31:23,033 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 11:31:23,033 INFO L276 IsEmpty]: Start isEmpty. Operand 25269 states and 35684 transitions. [2019-11-20 11:31:23,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-11-20 11:31:23,038 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:23,038 INFO L410 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 1, 1] [2019-11-20 11:31:23,241 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:23,242 INFO L410 AbstractCegarLoop]: === Iteration 34 === [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]=== [2019-11-20 11:31:23,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:23,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1714864998, now seen corresponding path program 8 times [2019-11-20 11:31:23,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:23,242 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762279561] [2019-11-20 11:31:23,242 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:23,355 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:23,356 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762279561] [2019-11-20 11:31:23,356 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150900785] [2019-11-20 11:31:23,356 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:23,398 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 11:31:23,398 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 11:31:23,399 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 11:31:23,400 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:23,413 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:23,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:23,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2019-11-20 11:31:23,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483014219] [2019-11-20 11:31:23,414 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-20 11:31:23,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:23,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-20 11:31:23,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-11-20 11:31:23,415 INFO L87 Difference]: Start difference. First operand 25269 states and 35684 transitions. Second operand 11 states. [2019-11-20 11:31:23,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:23,877 INFO L93 Difference]: Finished difference Result 34130 states and 48968 transitions. [2019-11-20 11:31:23,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-20 11:31:23,877 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 63 [2019-11-20 11:31:23,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:23,911 INFO L225 Difference]: With dead ends: 34130 [2019-11-20 11:31:23,911 INFO L226 Difference]: Without dead ends: 34128 [2019-11-20 11:31:23,917 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-11-20 11:31:23,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34128 states. [2019-11-20 11:31:24,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34128 to 29345. [2019-11-20 11:31:24,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29345 states. [2019-11-20 11:31:24,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29345 states to 29345 states and 41306 transitions. [2019-11-20 11:31:24,281 INFO L78 Accepts]: Start accepts. Automaton has 29345 states and 41306 transitions. Word has length 63 [2019-11-20 11:31:24,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:24,281 INFO L462 AbstractCegarLoop]: Abstraction has 29345 states and 41306 transitions. [2019-11-20 11:31:24,281 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-20 11:31:24,282 INFO L276 IsEmpty]: Start isEmpty. Operand 29345 states and 41306 transitions. [2019-11-20 11:31:24,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-11-20 11:31:24,284 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:24,284 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 1, 1] [2019-11-20 11:31:24,485 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:24,485 INFO L410 AbstractCegarLoop]: === Iteration 35 === [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]=== [2019-11-20 11:31:24,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:24,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1360130479, now seen corresponding path program 6 times [2019-11-20 11:31:24,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:24,486 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771834321] [2019-11-20 11:31:24,486 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:24,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:24,578 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:24,579 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771834321] [2019-11-20 11:31:24,579 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902969016] [2019-11-20 11:31:24,579 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:24,624 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-11-20 11:31:24,624 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 11:31:24,625 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 11:31:24,626 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:24,644 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:24,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:24,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2019-11-20 11:31:24,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736412320] [2019-11-20 11:31:24,646 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 11:31:24,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:24,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 11:31:24,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-11-20 11:31:24,649 INFO L87 Difference]: Start difference. First operand 29345 states and 41306 transitions. Second operand 9 states. [2019-11-20 11:31:24,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:24,931 INFO L93 Difference]: Finished difference Result 41880 states and 59971 transitions. [2019-11-20 11:31:24,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 11:31:24,932 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 63 [2019-11-20 11:31:24,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:24,979 INFO L225 Difference]: With dead ends: 41880 [2019-11-20 11:31:24,979 INFO L226 Difference]: Without dead ends: 41878 [2019-11-20 11:31:24,987 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-11-20 11:31:25,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41878 states. [2019-11-20 11:31:25,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41878 to 35465. [2019-11-20 11:31:25,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35465 states. [2019-11-20 11:31:25,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35465 states to 35465 states and 49718 transitions. [2019-11-20 11:31:25,676 INFO L78 Accepts]: Start accepts. Automaton has 35465 states and 49718 transitions. Word has length 63 [2019-11-20 11:31:25,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:25,677 INFO L462 AbstractCegarLoop]: Abstraction has 35465 states and 49718 transitions. [2019-11-20 11:31:25,677 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 11:31:25,677 INFO L276 IsEmpty]: Start isEmpty. Operand 35465 states and 49718 transitions. [2019-11-20 11:31:25,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-20 11:31:25,680 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:25,680 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 1, 1] [2019-11-20 11:31:25,881 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:25,881 INFO L410 AbstractCegarLoop]: === Iteration 36 === [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]=== [2019-11-20 11:31:25,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:25,881 INFO L82 PathProgramCache]: Analyzing trace with hash -851477649, now seen corresponding path program 7 times [2019-11-20 11:31:25,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:25,882 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088646211] [2019-11-20 11:31:25,882 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:25,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:25,970 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:25,970 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088646211] [2019-11-20 11:31:25,970 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071742843] [2019-11-20 11:31:25,970 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:26,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:26,009 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 11:31:26,010 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:26,021 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:26,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:26,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2019-11-20 11:31:26,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944579590] [2019-11-20 11:31:26,022 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 11:31:26,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:26,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 11:31:26,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-11-20 11:31:26,023 INFO L87 Difference]: Start difference. First operand 35465 states and 49718 transitions. Second operand 10 states. [2019-11-20 11:31:26,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:26,320 INFO L93 Difference]: Finished difference Result 51129 states and 72397 transitions. [2019-11-20 11:31:26,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-20 11:31:26,320 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 65 [2019-11-20 11:31:26,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:26,378 INFO L225 Difference]: With dead ends: 51129 [2019-11-20 11:31:26,378 INFO L226 Difference]: Without dead ends: 51128 [2019-11-20 11:31:26,388 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-11-20 11:31:26,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51128 states. [2019-11-20 11:31:26,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51128 to 37261. [2019-11-20 11:31:26,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37261 states. [2019-11-20 11:31:26,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37261 states to 37261 states and 52271 transitions. [2019-11-20 11:31:26,930 INFO L78 Accepts]: Start accepts. Automaton has 37261 states and 52271 transitions. Word has length 65 [2019-11-20 11:31:26,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:26,930 INFO L462 AbstractCegarLoop]: Abstraction has 37261 states and 52271 transitions. [2019-11-20 11:31:26,930 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 11:31:26,930 INFO L276 IsEmpty]: Start isEmpty. Operand 37261 states and 52271 transitions. [2019-11-20 11:31:26,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-11-20 11:31:26,934 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:26,935 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 1, 1] [2019-11-20 11:31:27,135 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:27,135 INFO L410 AbstractCegarLoop]: === Iteration 37 === [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]=== [2019-11-20 11:31:27,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:27,136 INFO L82 PathProgramCache]: Analyzing trace with hash -1457084265, now seen corresponding path program 9 times [2019-11-20 11:31:27,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:27,136 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142750728] [2019-11-20 11:31:27,136 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:27,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:27,238 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:27,238 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142750728] [2019-11-20 11:31:27,238 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881955045] [2019-11-20 11:31:27,238 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:27,280 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2019-11-20 11:31:27,281 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 11:31:27,281 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 11:31:27,283 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:27,295 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:27,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:27,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2019-11-20 11:31:27,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804045881] [2019-11-20 11:31:27,296 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-20 11:31:27,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:27,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-20 11:31:27,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-11-20 11:31:27,297 INFO L87 Difference]: Start difference. First operand 37261 states and 52271 transitions. Second operand 12 states. [2019-11-20 11:31:27,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:27,750 INFO L93 Difference]: Finished difference Result 49299 states and 70254 transitions. [2019-11-20 11:31:27,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-20 11:31:27,750 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 70 [2019-11-20 11:31:27,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:27,820 INFO L225 Difference]: With dead ends: 49299 [2019-11-20 11:31:27,820 INFO L226 Difference]: Without dead ends: 49297 [2019-11-20 11:31:27,831 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-11-20 11:31:27,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49297 states. [2019-11-20 11:31:28,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49297 to 42813. [2019-11-20 11:31:28,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42813 states. [2019-11-20 11:31:28,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42813 states to 42813 states and 59889 transitions. [2019-11-20 11:31:28,748 INFO L78 Accepts]: Start accepts. Automaton has 42813 states and 59889 transitions. Word has length 70 [2019-11-20 11:31:28,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:28,748 INFO L462 AbstractCegarLoop]: Abstraction has 42813 states and 59889 transitions. [2019-11-20 11:31:28,748 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-20 11:31:28,749 INFO L276 IsEmpty]: Start isEmpty. Operand 42813 states and 59889 transitions. [2019-11-20 11:31:28,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-11-20 11:31:28,753 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:28,753 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1] [2019-11-20 11:31:28,957 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:28,957 INFO L410 AbstractCegarLoop]: === Iteration 38 === [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]=== [2019-11-20 11:31:28,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:28,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1593226108, now seen corresponding path program 6 times [2019-11-20 11:31:28,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:28,958 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621862182] [2019-11-20 11:31:28,958 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:28,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:29,035 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:29,036 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621862182] [2019-11-20 11:31:29,036 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31640710] [2019-11-20 11:31:29,036 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:29,075 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-11-20 11:31:29,075 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 11:31:29,076 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 11:31:29,076 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:29,088 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:29,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:29,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2019-11-20 11:31:29,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102197268] [2019-11-20 11:31:29,089 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 11:31:29,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:29,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 11:31:29,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-11-20 11:31:29,090 INFO L87 Difference]: Start difference. First operand 42813 states and 59889 transitions. Second operand 9 states. [2019-11-20 11:31:29,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:29,413 INFO L93 Difference]: Finished difference Result 59102 states and 83563 transitions. [2019-11-20 11:31:29,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 11:31:29,414 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2019-11-20 11:31:29,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:29,481 INFO L225 Difference]: With dead ends: 59102 [2019-11-20 11:31:29,481 INFO L226 Difference]: Without dead ends: 59101 [2019-11-20 11:31:29,492 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-11-20 11:31:29,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59101 states. [2019-11-20 11:31:30,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59101 to 45005. [2019-11-20 11:31:30,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45005 states. [2019-11-20 11:31:30,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45005 states to 45005 states and 62987 transitions. [2019-11-20 11:31:30,685 INFO L78 Accepts]: Start accepts. Automaton has 45005 states and 62987 transitions. Word has length 71 [2019-11-20 11:31:30,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:30,685 INFO L462 AbstractCegarLoop]: Abstraction has 45005 states and 62987 transitions. [2019-11-20 11:31:30,685 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 11:31:30,685 INFO L276 IsEmpty]: Start isEmpty. Operand 45005 states and 62987 transitions. [2019-11-20 11:31:30,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-11-20 11:31:30,693 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:30,693 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 1, 1] [2019-11-20 11:31:30,893 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:30,894 INFO L410 AbstractCegarLoop]: === Iteration 39 === [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]=== [2019-11-20 11:31:30,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:30,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1572566089, now seen corresponding path program 7 times [2019-11-20 11:31:30,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:30,895 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296324163] [2019-11-20 11:31:30,895 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:30,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:30,976 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:30,976 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296324163] [2019-11-20 11:31:30,976 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565220104] [2019-11-20 11:31:30,976 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:31,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:31,008 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 11:31:31,009 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:31,017 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:31,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:31,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2019-11-20 11:31:31,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204901237] [2019-11-20 11:31:31,017 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 11:31:31,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:31,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 11:31:31,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-11-20 11:31:31,018 INFO L87 Difference]: Start difference. First operand 45005 states and 62987 transitions. Second operand 10 states. [2019-11-20 11:31:31,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:31,443 INFO L93 Difference]: Finished difference Result 62465 states and 88920 transitions. [2019-11-20 11:31:31,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-20 11:31:31,444 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 72 [2019-11-20 11:31:31,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:31,548 INFO L225 Difference]: With dead ends: 62465 [2019-11-20 11:31:31,549 INFO L226 Difference]: Without dead ends: 62463 [2019-11-20 11:31:31,565 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-11-20 11:31:31,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62463 states. [2019-11-20 11:31:32,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62463 to 53489. [2019-11-20 11:31:32,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53489 states. [2019-11-20 11:31:32,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53489 states to 53489 states and 74598 transitions. [2019-11-20 11:31:32,294 INFO L78 Accepts]: Start accepts. Automaton has 53489 states and 74598 transitions. Word has length 72 [2019-11-20 11:31:32,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:32,295 INFO L462 AbstractCegarLoop]: Abstraction has 53489 states and 74598 transitions. [2019-11-20 11:31:32,295 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 11:31:32,295 INFO L276 IsEmpty]: Start isEmpty. Operand 53489 states and 74598 transitions. [2019-11-20 11:31:32,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-11-20 11:31:32,300 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:32,300 INFO L410 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 1, 1] [2019-11-20 11:31:32,502 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:32,502 INFO L410 AbstractCegarLoop]: === Iteration 40 === [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]=== [2019-11-20 11:31:32,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:32,502 INFO L82 PathProgramCache]: Analyzing trace with hash 2147171801, now seen corresponding path program 8 times [2019-11-20 11:31:32,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:32,503 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633460119] [2019-11-20 11:31:32,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:32,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:32,613 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:32,614 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633460119] [2019-11-20 11:31:32,614 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737177526] [2019-11-20 11:31:32,614 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:32,653 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 11:31:32,654 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 11:31:32,654 INFO L255 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 11:31:32,655 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:32,669 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:32,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:32,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2019-11-20 11:31:32,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612193188] [2019-11-20 11:31:32,670 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-20 11:31:32,670 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:32,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-20 11:31:32,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-11-20 11:31:32,671 INFO L87 Difference]: Start difference. First operand 53489 states and 74598 transitions. Second operand 11 states. [2019-11-20 11:31:33,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:33,210 INFO L93 Difference]: Finished difference Result 75498 states and 106380 transitions. [2019-11-20 11:31:33,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-20 11:31:33,211 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 73 [2019-11-20 11:31:33,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:33,332 INFO L225 Difference]: With dead ends: 75498 [2019-11-20 11:31:33,333 INFO L226 Difference]: Without dead ends: 75497 [2019-11-20 11:31:33,352 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-11-20 11:31:33,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75497 states. [2019-11-20 11:31:34,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75497 to 55733. [2019-11-20 11:31:34,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55733 states. [2019-11-20 11:31:34,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55733 states to 55733 states and 77778 transitions. [2019-11-20 11:31:34,855 INFO L78 Accepts]: Start accepts. Automaton has 55733 states and 77778 transitions. Word has length 73 [2019-11-20 11:31:34,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:34,856 INFO L462 AbstractCegarLoop]: Abstraction has 55733 states and 77778 transitions. [2019-11-20 11:31:34,856 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-20 11:31:34,856 INFO L276 IsEmpty]: Start isEmpty. Operand 55733 states and 77778 transitions. [2019-11-20 11:31:34,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-11-20 11:31:34,864 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:34,864 INFO L410 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 1, 1] [2019-11-20 11:31:35,067 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:35,067 INFO L410 AbstractCegarLoop]: === Iteration 41 === [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]=== [2019-11-20 11:31:35,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:35,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1519696454, now seen corresponding path program 10 times [2019-11-20 11:31:35,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:35,069 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274848286] [2019-11-20 11:31:35,069 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:35,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:35,136 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2019-11-20 11:31:35,136 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274848286] [2019-11-20 11:31:35,137 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992073087] [2019-11-20 11:31:35,137 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:35,189 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-20 11:31:35,189 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 11:31:35,190 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-20 11:31:35,192 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:35,403 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 375 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:35,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 11:31:35,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [3] total 15 [2019-11-20 11:31:35,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103970569] [2019-11-20 11:31:35,405 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-20 11:31:35,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:35,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-20 11:31:35,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2019-11-20 11:31:35,405 INFO L87 Difference]: Start difference. First operand 55733 states and 77778 transitions. Second operand 13 states. [2019-11-20 11:31:35,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:35,963 INFO L93 Difference]: Finished difference Result 74113 states and 102475 transitions. [2019-11-20 11:31:35,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-20 11:31:35,963 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 77 [2019-11-20 11:31:35,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:35,965 INFO L225 Difference]: With dead ends: 74113 [2019-11-20 11:31:35,965 INFO L226 Difference]: Without dead ends: 1343 [2019-11-20 11:31:36,026 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2019-11-20 11:31:36,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2019-11-20 11:31:36,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 585. [2019-11-20 11:31:36,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2019-11-20 11:31:36,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 700 transitions. [2019-11-20 11:31:36,049 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 700 transitions. Word has length 77 [2019-11-20 11:31:36,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:36,050 INFO L462 AbstractCegarLoop]: Abstraction has 585 states and 700 transitions. [2019-11-20 11:31:36,050 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-20 11:31:36,050 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 700 transitions. [2019-11-20 11:31:36,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-11-20 11:31:36,051 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:36,051 INFO L410 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 1, 1] [2019-11-20 11:31:36,255 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:36,255 INFO L410 AbstractCegarLoop]: === Iteration 42 === [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]=== [2019-11-20 11:31:36,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:36,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1093517585, now seen corresponding path program 8 times [2019-11-20 11:31:36,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:36,256 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839617517] [2019-11-20 11:31:36,256 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:36,356 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:36,357 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839617517] [2019-11-20 11:31:36,357 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461988377] [2019-11-20 11:31:36,357 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:36,407 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 11:31:36,407 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 11:31:36,408 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 11:31:36,410 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:36,426 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:36,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:36,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2019-11-20 11:31:36,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633200658] [2019-11-20 11:31:36,427 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-20 11:31:36,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:36,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-20 11:31:36,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-11-20 11:31:36,428 INFO L87 Difference]: Start difference. First operand 585 states and 700 transitions. Second operand 11 states. [2019-11-20 11:31:36,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:36,504 INFO L93 Difference]: Finished difference Result 701 states and 822 transitions. [2019-11-20 11:31:36,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-20 11:31:36,505 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 81 [2019-11-20 11:31:36,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:36,506 INFO L225 Difference]: With dead ends: 701 [2019-11-20 11:31:36,506 INFO L226 Difference]: Without dead ends: 587 [2019-11-20 11:31:36,506 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-11-20 11:31:36,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2019-11-20 11:31:36,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 481. [2019-11-20 11:31:36,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2019-11-20 11:31:36,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 563 transitions. [2019-11-20 11:31:36,523 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 563 transitions. Word has length 81 [2019-11-20 11:31:36,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:36,523 INFO L462 AbstractCegarLoop]: Abstraction has 481 states and 563 transitions. [2019-11-20 11:31:36,524 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-20 11:31:36,524 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 563 transitions. [2019-11-20 11:31:36,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-11-20 11:31:36,525 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:36,525 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 1, 1] [2019-11-20 11:31:36,728 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:36,729 INFO L410 AbstractCegarLoop]: === Iteration 43 === [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]=== [2019-11-20 11:31:36,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:36,729 INFO L82 PathProgramCache]: Analyzing trace with hash -944170313, now seen corresponding path program 7 times [2019-11-20 11:31:36,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:36,729 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238568585] [2019-11-20 11:31:36,729 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:36,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:36,823 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:36,823 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238568585] [2019-11-20 11:31:36,823 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062172531] [2019-11-20 11:31:36,823 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:36,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:36,866 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 11:31:36,867 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:36,887 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:36,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:36,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2019-11-20 11:31:36,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444415676] [2019-11-20 11:31:36,889 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 11:31:36,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:36,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 11:31:36,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-11-20 11:31:36,890 INFO L87 Difference]: Start difference. First operand 481 states and 563 transitions. Second operand 10 states. [2019-11-20 11:31:36,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:36,973 INFO L93 Difference]: Finished difference Result 546 states and 639 transitions. [2019-11-20 11:31:36,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-20 11:31:36,974 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2019-11-20 11:31:36,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:36,974 INFO L225 Difference]: With dead ends: 546 [2019-11-20 11:31:36,974 INFO L226 Difference]: Without dead ends: 379 [2019-11-20 11:31:36,975 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-11-20 11:31:36,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2019-11-20 11:31:36,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2019-11-20 11:31:36,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2019-11-20 11:31:36,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 417 transitions. [2019-11-20 11:31:36,985 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 417 transitions. Word has length 81 [2019-11-20 11:31:36,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:36,985 INFO L462 AbstractCegarLoop]: Abstraction has 379 states and 417 transitions. [2019-11-20 11:31:36,985 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 11:31:36,985 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 417 transitions. [2019-11-20 11:31:36,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-11-20 11:31:36,986 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:36,987 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 1, 1] [2019-11-20 11:31:37,189 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:37,190 INFO L410 AbstractCegarLoop]: === Iteration 44 === [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]=== [2019-11-20 11:31:37,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:37,190 INFO L82 PathProgramCache]: Analyzing trace with hash -2010450365, now seen corresponding path program 9 times [2019-11-20 11:31:37,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:37,190 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147182275] [2019-11-20 11:31:37,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:37,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:37,321 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:37,322 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147182275] [2019-11-20 11:31:37,322 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026285515] [2019-11-20 11:31:37,322 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:37,371 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2019-11-20 11:31:37,372 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 11:31:37,373 INFO L255 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 11:31:37,374 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:37,390 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:37,390 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:37,391 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2019-11-20 11:31:37,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073979883] [2019-11-20 11:31:37,393 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-20 11:31:37,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:37,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-20 11:31:37,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-11-20 11:31:37,394 INFO L87 Difference]: Start difference. First operand 379 states and 417 transitions. Second operand 12 states. [2019-11-20 11:31:37,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:37,441 INFO L93 Difference]: Finished difference Result 464 states and 501 transitions. [2019-11-20 11:31:37,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-20 11:31:37,442 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 81 [2019-11-20 11:31:37,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:37,443 INFO L225 Difference]: With dead ends: 464 [2019-11-20 11:31:37,443 INFO L226 Difference]: Without dead ends: 397 [2019-11-20 11:31:37,443 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-11-20 11:31:37,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2019-11-20 11:31:37,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 306. [2019-11-20 11:31:37,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2019-11-20 11:31:37,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 344 transitions. [2019-11-20 11:31:37,453 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 344 transitions. Word has length 81 [2019-11-20 11:31:37,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:37,454 INFO L462 AbstractCegarLoop]: Abstraction has 306 states and 344 transitions. [2019-11-20 11:31:37,454 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-20 11:31:37,454 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 344 transitions. [2019-11-20 11:31:37,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2019-11-20 11:31:37,455 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:37,456 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 1, 1] [2019-11-20 11:31:37,659 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:37,659 INFO L410 AbstractCegarLoop]: === Iteration 45 === [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]=== [2019-11-20 11:31:37,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:37,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1856106743, now seen corresponding path program 9 times [2019-11-20 11:31:37,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:37,660 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563238953] [2019-11-20 11:31:37,660 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:37,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:37,787 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:37,787 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563238953] [2019-11-20 11:31:37,788 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201035954] [2019-11-20 11:31:37,788 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:37,852 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2019-11-20 11:31:37,852 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 11:31:37,853 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 11:31:37,854 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:37,877 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:37,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:37,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2019-11-20 11:31:37,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206354408] [2019-11-20 11:31:37,878 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-20 11:31:37,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:37,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-20 11:31:37,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-11-20 11:31:37,879 INFO L87 Difference]: Start difference. First operand 306 states and 344 transitions. Second operand 12 states. [2019-11-20 11:31:37,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:37,925 INFO L93 Difference]: Finished difference Result 319 states and 357 transitions. [2019-11-20 11:31:37,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-20 11:31:37,926 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 90 [2019-11-20 11:31:37,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:37,926 INFO L225 Difference]: With dead ends: 319 [2019-11-20 11:31:37,926 INFO L226 Difference]: Without dead ends: 242 [2019-11-20 11:31:37,926 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-11-20 11:31:37,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2019-11-20 11:31:37,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 222. [2019-11-20 11:31:37,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2019-11-20 11:31:37,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 260 transitions. [2019-11-20 11:31:37,930 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 260 transitions. Word has length 90 [2019-11-20 11:31:37,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:37,931 INFO L462 AbstractCegarLoop]: Abstraction has 222 states and 260 transitions. [2019-11-20 11:31:37,931 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-20 11:31:37,931 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 260 transitions. [2019-11-20 11:31:37,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-11-20 11:31:37,932 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:37,932 INFO L410 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 1, 1] [2019-11-20 11:31:38,135 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:38,136 INFO L410 AbstractCegarLoop]: === Iteration 46 === [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]=== [2019-11-20 11:31:38,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:38,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1359938858, now seen corresponding path program 8 times [2019-11-20 11:31:38,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:38,136 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65942138] [2019-11-20 11:31:38,136 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:38,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:38,235 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:38,235 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65942138] [2019-11-20 11:31:38,236 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173237356] [2019-11-20 11:31:38,236 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:38,279 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 11:31:38,280 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 11:31:38,281 INFO L255 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 11:31:38,282 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:38,299 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:38,299 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:38,299 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2019-11-20 11:31:38,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533041492] [2019-11-20 11:31:38,301 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-20 11:31:38,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:38,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-20 11:31:38,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-11-20 11:31:38,301 INFO L87 Difference]: Start difference. First operand 222 states and 260 transitions. Second operand 11 states. [2019-11-20 11:31:38,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:38,343 INFO L93 Difference]: Finished difference Result 243 states and 280 transitions. [2019-11-20 11:31:38,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-20 11:31:38,344 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 91 [2019-11-20 11:31:38,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:38,344 INFO L225 Difference]: With dead ends: 243 [2019-11-20 11:31:38,344 INFO L226 Difference]: Without dead ends: 102 [2019-11-20 11:31:38,345 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-11-20 11:31:38,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2019-11-20 11:31:38,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2019-11-20 11:31:38,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-11-20 11:31:38,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 101 transitions. [2019-11-20 11:31:38,347 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 101 transitions. Word has length 91 [2019-11-20 11:31:38,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:38,348 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 101 transitions. [2019-11-20 11:31:38,348 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-20 11:31:38,348 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 101 transitions. [2019-11-20 11:31:38,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-11-20 11:31:38,349 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:31:38,349 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 1, 1] [2019-11-20 11:31:38,552 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:38,552 INFO L410 AbstractCegarLoop]: === Iteration 47 === [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]=== [2019-11-20 11:31:38,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:31:38,552 INFO L82 PathProgramCache]: Analyzing trace with hash -498811939, now seen corresponding path program 9 times [2019-11-20 11:31:38,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:31:38,553 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298800569] [2019-11-20 11:31:38,553 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:31:38,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:31:38,685 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:38,686 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298800569] [2019-11-20 11:31:38,686 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [941289220] [2019-11-20 11:31:38,686 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:38,750 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2019-11-20 11:31:38,750 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 11:31:38,752 INFO L255 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 11:31:38,754 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:31:38,780 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:31:38,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:31:38,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2019-11-20 11:31:38,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888489256] [2019-11-20 11:31:38,781 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-20 11:31:38,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:31:38,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-20 11:31:38,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-11-20 11:31:38,782 INFO L87 Difference]: Start difference. First operand 102 states and 101 transitions. Second operand 12 states. [2019-11-20 11:31:38,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:31:38,811 INFO L93 Difference]: Finished difference Result 102 states and 101 transitions. [2019-11-20 11:31:38,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-20 11:31:38,811 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 101 [2019-11-20 11:31:38,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:31:38,812 INFO L225 Difference]: With dead ends: 102 [2019-11-20 11:31:38,812 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 11:31:38,812 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-11-20 11:31:38,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 11:31:38,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 11:31:38,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 11:31:38,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 11:31:38,813 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 101 [2019-11-20 11:31:38,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:31:38,813 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 11:31:38,813 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-20 11:31:38,813 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 11:31:38,813 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 11:31:39,014 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:31:39,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 11:32:04,673 WARN L191 SmtUtils]: Spent 25.64 s on a formula simplification. DAG size of input: 2170 DAG size of output: 1834 [2019-11-20 11:33:35,437 WARN L191 SmtUtils]: Spent 1.51 m on a formula simplification. DAG size of input: 1797 DAG size of output: 328 [2019-11-20 11:33:35,441 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2019-11-20 11:33:35,441 INFO L444 ceAbstractionStarter]: For program point L27(lines 27 31) no Hoare annotation was computed. [2019-11-20 11:33:35,441 INFO L444 ceAbstractionStarter]: For program point L23(lines 23 31) no Hoare annotation was computed. [2019-11-20 11:33:35,441 INFO L444 ceAbstractionStarter]: For program point L19-2(lines 19 33) no Hoare annotation was computed. [2019-11-20 11:33:35,441 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2019-11-20 11:33:35,441 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-20 11:33:35,442 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 11:33:35,442 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2019-11-20 11:33:35,442 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 11:33:35,442 INFO L444 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2019-11-20 11:33:35,442 INFO L444 ceAbstractionStarter]: For program point L28-1(line 28) no Hoare annotation was computed. [2019-11-20 11:33:35,442 INFO L444 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2019-11-20 11:33:35,442 INFO L444 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2019-11-20 11:33:35,442 INFO L444 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2019-11-20 11:33:35,442 INFO L444 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2019-11-20 11:33:35,442 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2019-11-20 11:33:35,442 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-20 11:33:35,442 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 11:33:35,442 INFO L444 ceAbstractionStarter]: For program point L29(lines 29 31) no Hoare annotation was computed. [2019-11-20 11:33:35,442 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2019-11-20 11:33:35,442 INFO L444 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2019-11-20 11:33:35,443 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2019-11-20 11:33:35,443 INFO L447 ceAbstractionStarter]: At program point L34(lines 13 35) the Hoare annotation is: true [2019-11-20 11:33:35,443 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2019-11-20 11:33:35,443 INFO L444 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2019-11-20 11:33:35,443 INFO L444 ceAbstractionStarter]: For program point L30-1(line 30) no Hoare annotation was computed. [2019-11-20 11:33:35,443 INFO L444 ceAbstractionStarter]: For program point L26(line 26) no Hoare annotation was computed. [2019-11-20 11:33:35,443 INFO L444 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2019-11-20 11:33:35,443 INFO L444 ceAbstractionStarter]: For program point L22(lines 22 32) no Hoare annotation was computed. [2019-11-20 11:33:35,446 INFO L440 ceAbstractionStarter]: At program point L22-1(lines 19 33) the Hoare annotation is: (let ((.cse5 (<= 0 ULTIMATE.start_main_~y~0)) (.cse28 (<= 0 (+ ULTIMATE.start_main_~x~0 1))) (.cse27 (<= ULTIMATE.start_main_~x~0 1)) (.cse11 (<= 8 ULTIMATE.start_main_~i~0)) (.cse37 (<= 0 (+ ULTIMATE.start_main_~x~0 2))) (.cse3 (<= ULTIMATE.start_main_~x~0 0)) (.cse6 (<= 9 ULTIMATE.start_main_~i~0)) (.cse9 (<= ULTIMATE.start_main_~y~0 0)) (.cse1 (<= ULTIMATE.start_main_~N~0 10)) (.cse49 (<= 0 (+ ULTIMATE.start_main_~y~0 2147483648))) (.cse19 (<= ULTIMATE.start_main_~x~0 2)) (.cse4 (<= 0 ULTIMATE.start_main_~x~0))) (let ((.cse43 (or (and .cse6 .cse9 .cse1 .cse37 .cse3 .cse49) (and .cse6 .cse9 .cse1 .cse49 .cse19 .cse4))) (.cse10 (<= ULTIMATE.start_main_~x~0 7)) (.cse15 (<= ULTIMATE.start_main_~x~0 8)) (.cse46 (<= ULTIMATE.start_main_~x~0 9)) (.cse18 (<= 2 ULTIMATE.start_main_~i~0)) (.cse33 (<= ULTIMATE.start_main_~y~0 2)) (.cse0 (<= 3 ULTIMATE.start_main_~i~0)) (.cse31 (<= 0 (+ ULTIMATE.start_main_~x~0 3))) (.cse32 (<= ULTIMATE.start_main_~y~0 6)) (.cse36 (<= ULTIMATE.start_main_~y~0 8)) (.cse41 (<= ULTIMATE.start_main_~x~0 4)) (.cse45 (<= 0 (+ ULTIMATE.start_main_~x~0 8))) (.cse13 (<= 5 ULTIMATE.start_main_~i~0)) (.cse50 (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648))) (.cse26 (<= 0 (+ ULTIMATE.start_main_~y~0 4))) (.cse8 (<= ULTIMATE.start_main_~x~0 5)) (.cse17 (<= 0 (+ ULTIMATE.start_main_~x~0 4))) (.cse24 (<= 0 (+ ULTIMATE.start_main_~y~0 3))) (.cse48 (<= 0 (+ ULTIMATE.start_main_~y~0 6))) (.cse51 (or (and .cse28 .cse9 .cse1 .cse3 .cse11 .cse49) (and .cse9 .cse1 .cse27 .cse11 .cse49 .cse4))) (.cse16 (<= ULTIMATE.start_main_~y~0 1)) (.cse40 (<= ULTIMATE.start_main_~x~0 3)) (.cse29 (<= ULTIMATE.start_main_~y~0 5)) (.cse21 (<= 6 ULTIMATE.start_main_~i~0)) (.cse39 (<= 1 ULTIMATE.start_main_~i~0)) (.cse12 (<= 0 (+ ULTIMATE.start_main_~y~0 1))) (.cse35 (or (and .cse6 .cse28 .cse1 .cse3 .cse5) (and .cse6 .cse1 .cse27 .cse4 .cse5))) (.cse2 (<= ULTIMATE.start_main_~y~0 3)) (.cse34 (<= 0 (+ ULTIMATE.start_main_~x~0 6))) (.cse42 (<= 0 (+ ULTIMATE.start_main_~x~0 5))) (.cse14 (<= 0 (+ ULTIMATE.start_main_~y~0 5))) (.cse22 (<= ULTIMATE.start_main_~x~0 6)) (.cse20 (<= ULTIMATE.start_main_~y~0 7)) (.cse30 (<= 7 ULTIMATE.start_main_~i~0)) (.cse44 (<= 0 (+ ULTIMATE.start_main_~y~0 7))) (.cse7 (<= ULTIMATE.start_main_~y~0 4)) (.cse47 (<= 4 ULTIMATE.start_main_~i~0)) (.cse38 (<= 0 (+ ULTIMATE.start_main_~y~0 2))) (.cse25 (<= 0 (+ ULTIMATE.start_main_~x~0 7))) (.cse23 (<= 10 ULTIMATE.start_main_~i~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse1 .cse8 .cse4 .cse5) (and .cse9 .cse10 .cse1 .cse11 .cse12 .cse4) (and .cse9 .cse1 .cse3 .cse13 .cse14 .cse4) (and .cse15 .cse9 .cse1 .cse11 .cse4 .cse5) (and .cse16 .cse17 .cse1 .cse3 .cse13 .cse5) (and .cse9 .cse1 .cse18 .cse19 .cse4 .cse5) (and .cse6 .cse1 .cse19 .cse4 .cse5 .cse20) (and .cse9 .cse1 .cse21 .cse4 .cse5 .cse22) (and .cse23 .cse9 .cse1 .cse3 .cse24 .cse25) (and .cse17 .cse26 .cse9 .cse1 .cse3 .cse11) (and (or (and .cse1 .cse27 .cse21 .cse4) (and .cse28 .cse1 .cse3 .cse21)) .cse9 .cse14) (and .cse17 .cse7 .cse1 .cse3 .cse11 .cse5) (and .cse29 .cse1 .cse30 .cse19 .cse4 .cse5) (and .cse6 .cse1 .cse3 .cse31 .cse5 .cse32) (and .cse33 .cse1 .cse3 .cse11 .cse34 .cse5) (and .cse6 .cse1 .cse2 .cse4 .cse5 .cse22) (and .cse6 .cse29 .cse17 .cse1 .cse3 .cse5) (and .cse33 .cse28 .cse0 .cse1 .cse3 .cse5) (and .cse35 .cse36) (and .cse1 .cse2 .cse19 .cse13 .cse4 .cse5) (and .cse16 (or (and .cse28 .cse1 .cse18 .cse3 .cse5) (and .cse1 .cse27 .cse18 .cse4 .cse5))) (and .cse1 .cse2 .cse37 .cse3 .cse13 .cse5) (and .cse6 .cse9 .cse10 .cse1 .cse38 .cse4) (and .cse1 .cse37 .cse3 .cse11 .cse5 .cse32) (and .cse5 (or (and .cse39 .cse9 .cse1 .cse27 .cse4) (and .cse39 .cse16 .cse1 .cse3 .cse4) (and .cse39 .cse28 .cse9 .cse1 .cse3))) (and (or (and .cse1 .cse27 .cse11 .cse4 .cse5) (and .cse28 .cse1 .cse3 .cse11 .cse5)) .cse20) (and .cse40 .cse33 .cse1 .cse13 .cse4 .cse5) (and .cse9 .cse1 .cse3 .cse34 .cse21 .cse5) (and .cse41 .cse26 .cse9 .cse1 .cse11 .cse4) (and .cse29 .cse23 .cse1 .cse8 .cse4 .cse5) (and .cse9 .cse42 .cse1 .cse3 .cse21 .cse12) (and .cse40 .cse9 .cse1 .cse38 .cse13 .cse4) (and .cse33 .cse0 .cse1 .cse27 .cse4 .cse5) (and .cse9 .cse1 .cse3 .cse31 .cse24 .cse21) (and .cse43 .cse44) (and .cse9 .cse1 .cse8 .cse21 .cse12 .cse4) (and .cse23 .cse33 .cse1 .cse3 .cse45 .cse5) (and .cse41 .cse9 .cse1 .cse13 .cse12 .cse4) (and .cse23 .cse26 .cse9 .cse1 .cse3 .cse34) (and .cse41 .cse9 .cse1 .cse30 .cse24 .cse4) (and .cse17 .cse1 .cse2 .cse30 .cse3 .cse5) (and .cse33 .cse41 .cse1 .cse21 .cse4 .cse5) (and .cse40 .cse1 .cse2 .cse21 .cse4 .cse5) (and .cse6 .cse9 .cse1 .cse24 .cse4 .cse22) (and (or (and .cse1 .cse27 .cse18 .cse4) (and .cse28 .cse1 .cse18 .cse3)) .cse9 .cse12) (and (or (and .cse0 .cse1 .cse27 .cse4) (and .cse28 .cse0 .cse1 .cse3)) .cse9 .cse38) (and .cse16 .cse41 .cse1 .cse13 .cse4 .cse5) (and .cse23 .cse1 .cse2 .cse3 .cse25 .cse5) (and .cse16 .cse1 .cse8 .cse21 .cse4 .cse5) (and .cse9 .cse1 .cse18 .cse38 .cse3 .cse4) (and .cse40 .cse23 .cse1 .cse4 .cse5 .cse20) (and .cse6 .cse7 .cse42 .cse1 .cse3 .cse5) (and .cse6 .cse9 .cse1 .cse3 .cse24 .cse34) (and .cse23 .cse9 .cse1 .cse3 .cse38 .cse45) (and .cse6 .cse26 .cse9 .cse42 .cse1 .cse3) (and .cse26 .cse9 .cse1 .cse27 .cse13 .cse4) (and .cse23 .cse15 .cse33 .cse1 .cse4 .cse5) (and .cse9 .cse1 .cse18 .cse37 .cse3 .cse5) (and .cse9 .cse1 .cse30 .cse3 .cse34 .cse12) (and (<= 0 (+ ULTIMATE.start_main_~y~0 9)) (and .cse28 .cse43)) (and .cse23 .cse16 .cse1 .cse46 .cse4 .cse5) (and .cse9 .cse1 .cse30 .cse3 .cse25 .cse5) (and .cse1 .cse2 .cse3 .cse31 .cse21 .cse5) (and .cse23 .cse1 .cse19 .cse4 .cse5) (and .cse28 .cse1 .cse2 .cse3 .cse47 .cse5) (and .cse1 .cse2 .cse27 .cse47 .cse4 .cse5) (and .cse16 .cse1 .cse3 .cse11 .cse25 .cse5) (and .cse23 .cse9 .cse1 .cse8 .cse14 .cse4) (and .cse33 .cse1 .cse11 .cse4 .cse5 .cse22) (and .cse33 .cse1 .cse3 .cse31 .cse13 .cse5) (and .cse9 .cse1 .cse30 .cse12 .cse4 .cse22) (and .cse29 .cse1 .cse3 .cse11 .cse31 .cse5) (and .cse23 .cse17 .cse9 .cse48 .cse1 .cse3) (and .cse40 .cse9 .cse1 .cse11 .cse14 .cse4) (and .cse6 .cse17 .cse9 .cse1 .cse3 .cse14) (and .cse29 .cse23 .cse42 .cse1 .cse3 .cse5) (and (or (and .cse9 .cse1 .cse30 .cse19 .cse4) (and .cse9 .cse1 .cse30 .cse37 .cse3)) .cse14) (and .cse28 .cse7 .cse1 .cse3 .cse13 .cse5) (and .cse6 .cse29 .cse41 .cse1 .cse4 .cse5) (and .cse9 .cse0 .cse1 .cse3 .cse31 .cse5) (and .cse41 .cse9 .cse1 .cse47 .cse4 .cse5) (and .cse33 .cse42 .cse1 .cse30 .cse3 .cse5) (and .cse33 .cse1 .cse19 .cse47 .cse4 .cse5) (and .cse9 .cse1 .cse10 .cse30 .cse4 .cse5) (and .cse17 .cse9 .cse1 .cse3 .cse38 .cse21) (and .cse7 .cse1 .cse30 .cse3 .cse31 .cse5) (and .cse33 .cse1 .cse30 .cse8 .cse4 .cse5) (and .cse7 .cse1 .cse19 .cse21 .cse4 .cse5) (and .cse23 .cse9 .cse1 .cse46 .cse12 .cse4) (and .cse17 .cse9 .cse1 .cse3 .cse47 .cse5) (and .cse41 .cse9 .cse1 .cse38 .cse21 .cse4) (and (or (and .cse1 .cse30 .cse27 .cse4 .cse5) (and .cse28 .cse1 .cse30 .cse3 .cse5)) .cse32) (and .cse29 .cse1 .cse30 .cse37 .cse3 .cse5) (and .cse33 .cse1 .cse37 .cse3 .cse47 .cse5) (and .cse26 .cse9 .cse1 .cse37 .cse3 .cse21) (and .cse16 .cse1 .cse3 .cse31 .cse47 .cse5) (and .cse23 .cse9 .cse1 .cse3 .cse49 .cse31) (and .cse40 .cse16 .cse1 .cse47 .cse4 .cse5) (and .cse26 .cse9 .cse1 .cse3 .cse47 .cse4) (and .cse16 .cse10 .cse1 .cse11 .cse4 .cse5) (and .cse29 .cse1 .cse3 .cse13 .cse4 .cse5) (and .cse6 .cse33 .cse10 .cse1 .cse4 .cse5) (or (and .cse28 .cse9 .cse48 .cse1 .cse30 .cse3) (and .cse9 .cse48 .cse1 .cse30 .cse27 .cse4)) (and .cse7 .cse1 .cse37 .cse3 .cse21 .cse5) (and .cse9 .cse42 .cse1 .cse30 .cse3 .cse38) (and .cse16 .cse1 .cse30 .cse4 .cse5 .cse22) (and .cse6 .cse33 .cse1 .cse3 .cse25 .cse5) (and .cse23 .cse41 .cse1 .cse4 .cse5 .cse32) (and .cse9 .cse48 .cse1 .cse11 .cse19 .cse4) (and .cse29 .cse28 .cse1 .cse3 .cse21 .cse5) (and .cse9 .cse1 .cse3 .cse31 .cse47 .cse12) (and .cse23 .cse15 .cse9 .cse1 .cse38 .cse4) (and .cse6 .cse16 .cse1 .cse3 .cse45 .cse5) (and .cse6 .cse16 .cse15 .cse1 .cse4 .cse5) (and .cse28 .cse26 .cse9 .cse1 .cse3 .cse13) (and .cse26 .cse9 .cse1 .cse30 .cse3 .cse31) (and .cse23 .cse16 .cse50 .cse1 .cse3 .cse5) (and .cse23 .cse9 .cse10 .cse1 .cse24 .cse4) (and .cse40 .cse29 .cse1 .cse11 .cse4 .cse5) (and .cse16 .cse0 .cse1 .cse19 .cse4 .cse5) (and .cse40 .cse6 .cse9 .cse48 .cse1 .cse4) (and (or (and .cse28 .cse9 .cse1 .cse3 .cse47) (and .cse9 .cse1 .cse27 .cse47 .cse4)) .cse24) (and .cse23 .cse10 .cse1 .cse2 .cse4 .cse5) (and .cse6 .cse41 .cse9 .cse1 .cse14 .cse4) (and .cse9 .cse0 .cse1 .cse3 .cse24 .cse4) (and .cse17 .cse9 .cse1 .cse3 .cse13 .cse12) (and .cse42 .cse1 .cse2 .cse3 .cse11 .cse5) (and .cse16 .cse1 .cse30 .cse3 .cse34 .cse5) (and .cse41 .cse1 .cse2 .cse30 .cse4 .cse5) (and .cse23 .cse7 .cse1 .cse4 .cse5 .cse22) (and .cse6 .cse9 .cse1 .cse3 (<= 0 (+ ULTIMATE.start_main_~x~0 9)) .cse5) (and .cse9 .cse1 .cse38 .cse19 .cse47 .cse4) (and .cse40 .cse9 .cse1 .cse24 .cse21 .cse4) (and .cse6 .cse15 .cse9 .cse1 .cse12 .cse4) (and .cse6 .cse9 .cse46 .cse1 .cse4 .cse5) (and .cse1 .cse11 .cse19 .cse4 .cse5 .cse32) (and .cse23 .cse1 .cse3 .cse31 .cse5 .cse20) (and .cse6 .cse9 .cse1 .cse3 .cse45 .cse12) (and .cse9 .cse1 .cse3 .cse11 .cse31 .cse14) (and .cse9 .cse42 .cse1 .cse3 .cse13 .cse5) (and .cse51 (<= 0 (+ ULTIMATE.start_main_~y~0 8)) .cse4) (and .cse9 .cse0 .cse1 .cse19 .cse12 .cse4) (and .cse9 .cse42 .cse1 .cse3 .cse11 .cse24) (and .cse1 .cse3 .cse21 .cse5 .cse4 .cse32) (and .cse9 .cse1 .cse3 .cse38 .cse31 .cse13) (and .cse9 .cse1 .cse30 .cse38 .cse8 .cse4) (and .cse33 .cse1 .cse18 .cse3 .cse4 .cse5) (and .cse40 .cse9 .cse0 .cse1 .cse4 .cse5) (and .cse23 .cse7 .cse1 .cse3 .cse34 .cse5) (and .cse23 .cse1 .cse37 .cse3 .cse5) (and .cse23 .cse17 .cse1 .cse3 .cse5 .cse32) (and .cse40 .cse26 .cse9 .cse1 .cse30 .cse4) (and .cse9 .cse1 .cse13 .cse8 .cse4 .cse5) (and .cse9 .cse1 .cse3 .cse4 .cse5 (<= 0 ULTIMATE.start_main_~i~0)) (and .cse16 .cse0 .cse1 .cse37 .cse3 .cse5) (and .cse1 .cse2 .cse11 .cse8 .cse4 .cse5) (and .cse9 .cse1 .cse11 .cse24 .cse8 .cse4) (and .cse9 .cse48 .cse1 .cse37 .cse3 .cse11) (and .cse40 .cse23 .cse9 .cse1 .cse49 .cse4) (and .cse26 .cse9 .cse1 .cse19 .cse21 .cse4) (and .cse33 .cse17 .cse1 .cse3 .cse21 .cse5) (and .cse9 .cse0 .cse1 .cse37 .cse3 .cse12) (and .cse6 .cse9 .cse48 .cse1 .cse3 .cse31) (and .cse23 .cse41 .cse9 .cse48 .cse1 .cse4) (and .cse1 .cse30 .cse3 .cse5 .cse4 .cse20) (and .cse40 .cse6 .cse1 .cse4 .cse5 .cse32) (and .cse1 .cse11 .cse3 .cse36 .cse5 .cse4) (and .cse23 .cse26 .cse9 .cse1 .cse4 .cse22) (or (and .cse9 .cse1 .cse37 .cse3 .cse13 .cse24) (and .cse9 .cse1 .cse19 .cse13 .cse24 .cse4)) (and .cse41 .cse7 .cse1 .cse11 .cse4 .cse5) (and .cse9 .cse1 .cse3 .cse11 .cse45 .cse5) (and .cse9 .cse1 .cse3 .cse11 .cse38 .cse34) (and .cse7 .cse1 .cse27 .cse13 .cse4 .cse5) (and .cse9 .cse1 .cse3 .cse11 .cse25 .cse12) (and .cse23 .cse50 .cse9 .cse1 .cse3 .cse12) (and .cse6 .cse26 .cse9 .cse1 .cse8 .cse4) (and .cse17 .cse9 .cse1 .cse30 .cse3 .cse24) (and .cse9 .cse48 .cse1 .cse3 .cse21 .cse4) (and .cse51 .cse44) (and .cse16 .cse42 .cse1 .cse3 .cse21 .cse5) (and .cse40 .cse9 .cse1 .cse47 .cse12 .cse4) (and .cse40 .cse7 .cse1 .cse30 .cse4 .cse5) (and .cse29 .cse1 .cse27 .cse21 .cse4 .cse5) (and .cse39 .cse9 .cse1 .cse3 .cse12 .cse4) (and .cse35 (<= ULTIMATE.start_main_~y~0 9) .cse4) (and .cse9 .cse1 .cse37 .cse3 .cse38 .cse47) (and .cse6 .cse1 .cse2 .cse3 .cse34 .cse5) (and .cse23 .cse9 .cse42 .cse1 .cse3 .cse14) (and .cse9 .cse1 .cse11 .cse38 .cse4 .cse22) (and .cse6 .cse1 .cse37 .cse3 .cse5 .cse20) (and .cse9 .cse1 .cse30 .cse3 .cse44 .cse4) (and .cse7 .cse1 .cse3 .cse47 .cse4 .cse5) (and .cse6 .cse9 .cse1 .cse3 .cse38 .cse25) (and .cse23 .cse9 .cse1 .cse4 .cse5)))) [2019-11-20 11:33:35,446 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2019-11-20 11:33:35,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:33:35 BoogieIcfgContainer [2019-11-20 11:33:35,534 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 11:33:35,534 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 11:33:35,535 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 11:33:35,535 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 11:33:35,535 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:31:05" (3/4) ... [2019-11-20 11:33:35,539 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 11:33:35,554 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 11:33:35,555 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 11:33:35,640 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c981622c-804c-4798-8e41-b96fea334eed/bin/uautomizer/witness.graphml [2019-11-20 11:33:35,640 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 11:33:35,641 INFO L168 Benchmark]: Toolchain (without parser) took 151039.77 ms. Allocated memory was 1.0 GB in the beginning and 5.2 GB in the end (delta: 4.1 GB). Free memory was 946.0 MB in the beginning and 3.5 GB in the end (delta: -2.6 GB). Peak memory consumption was 1.6 GB. Max. memory is 11.5 GB. [2019-11-20 11:33:35,642 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:33:35,642 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 946.0 MB in the beginning and 1.2 GB in the end (delta: -209.9 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-20 11:33:35,643 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-20 11:33:35,643 INFO L168 Benchmark]: Boogie Preprocessor took 32.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-20 11:33:35,644 INFO L168 Benchmark]: RCFGBuilder took 463.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-11-20 11:33:35,644 INFO L168 Benchmark]: TraceAbstraction took 150075.19 ms. Allocated memory was 1.2 GB in the beginning and 5.2 GB in the end (delta: 4.0 GB). Free memory was 1.1 GB in the beginning and 3.6 GB in the end (delta: -2.5 GB). Peak memory consumption was 4.8 GB. Max. memory is 11.5 GB. [2019-11-20 11:33:35,645 INFO L168 Benchmark]: Witness Printer took 105.71 ms. Allocated memory is still 5.2 GB. Free memory was 3.6 GB in the beginning and 3.5 GB in the end (delta: 100.2 MB). Peak memory consumption was 100.2 MB. Max. memory is 11.5 GB. [2019-11-20 11:33:35,647 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 326.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 946.0 MB in the beginning and 1.2 GB in the end (delta: -209.9 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 463.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 150075.19 ms. Allocated memory was 1.2 GB in the beginning and 5.2 GB in the end (delta: 4.0 GB). Free memory was 1.1 GB in the beginning and 3.6 GB in the end (delta: -2.5 GB). Peak memory consumption was 4.8 GB. Max. memory is 11.5 GB. * Witness Printer took 105.71 ms. Allocated memory is still 5.2 GB. Free memory was 3.6 GB in the beginning and 3.5 GB in the end (delta: 100.2 MB). Peak memory consumption was 100.2 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: ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((3 <= i && N <= 10) && y <= 3) && x <= 0) && 0 <= x) && 0 <= y) || (((((9 <= i && y <= 4) && N <= 10) && x <= 5) && 0 <= x) && 0 <= y)) || (((((y <= 0 && x <= 7) && N <= 10) && 8 <= i) && 0 <= y + 1) && 0 <= x)) || (((((y <= 0 && N <= 10) && x <= 0) && 5 <= i) && 0 <= y + 5) && 0 <= x)) || (((((x <= 8 && y <= 0) && N <= 10) && 8 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 1 && 0 <= x + 4) && N <= 10) && x <= 0) && 5 <= i) && 0 <= y)) || (((((y <= 0 && N <= 10) && 2 <= i) && x <= 2) && 0 <= x) && 0 <= y)) || (((((9 <= i && N <= 10) && x <= 2) && 0 <= x) && 0 <= y) && y <= 7)) || (((((y <= 0 && N <= 10) && 6 <= i) && 0 <= x) && 0 <= y) && x <= 6)) || (((((10 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 3) && 0 <= x + 7)) || (((((0 <= x + 4 && 0 <= y + 4) && y <= 0) && N <= 10) && x <= 0) && 8 <= i)) || ((((((N <= 10 && x <= 1) && 6 <= i) && 0 <= x) || (((0 <= x + 1 && N <= 10) && x <= 0) && 6 <= i)) && y <= 0) && 0 <= y + 5)) || (((((0 <= x + 4 && y <= 4) && N <= 10) && x <= 0) && 8 <= i) && 0 <= y)) || (((((y <= 5 && N <= 10) && 7 <= i) && x <= 2) && 0 <= x) && 0 <= y)) || (((((9 <= i && N <= 10) && x <= 0) && 0 <= x + 3) && 0 <= y) && y <= 6)) || (((((y <= 2 && N <= 10) && x <= 0) && 8 <= i) && 0 <= x + 6) && 0 <= y)) || (((((9 <= i && N <= 10) && y <= 3) && 0 <= x) && 0 <= y) && x <= 6)) || (((((9 <= i && y <= 5) && 0 <= x + 4) && N <= 10) && x <= 0) && 0 <= y)) || (((((y <= 2 && 0 <= x + 1) && 3 <= i) && N <= 10) && x <= 0) && 0 <= y)) || ((((((9 <= i && 0 <= x + 1) && N <= 10) && x <= 0) && 0 <= y) || ((((9 <= i && N <= 10) && x <= 1) && 0 <= x) && 0 <= y)) && y <= 8)) || (((((N <= 10 && y <= 3) && x <= 2) && 5 <= i) && 0 <= x) && 0 <= y)) || (y <= 1 && (((((0 <= x + 1 && N <= 10) && 2 <= i) && x <= 0) && 0 <= y) || ((((N <= 10 && x <= 1) && 2 <= i) && 0 <= x) && 0 <= y)))) || (((((N <= 10 && y <= 3) && 0 <= x + 2) && x <= 0) && 5 <= i) && 0 <= y)) || (((((9 <= i && y <= 0) && x <= 7) && N <= 10) && 0 <= y + 2) && 0 <= x)) || (((((N <= 10 && 0 <= x + 2) && x <= 0) && 8 <= i) && 0 <= y) && y <= 6)) || (0 <= y && ((((((1 <= i && y <= 0) && N <= 10) && x <= 1) && 0 <= x) || ((((1 <= i && y <= 1) && N <= 10) && x <= 0) && 0 <= x)) || ((((1 <= i && 0 <= x + 1) && y <= 0) && N <= 10) && x <= 0)))) || ((((((N <= 10 && x <= 1) && 8 <= i) && 0 <= x) && 0 <= y) || ((((0 <= x + 1 && N <= 10) && x <= 0) && 8 <= i) && 0 <= y)) && y <= 7)) || (((((x <= 3 && y <= 2) && N <= 10) && 5 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 0) && 0 <= x + 6) && 6 <= i) && 0 <= y)) || (((((x <= 4 && 0 <= y + 4) && y <= 0) && N <= 10) && 8 <= i) && 0 <= x)) || (((((y <= 5 && 10 <= i) && N <= 10) && x <= 5) && 0 <= x) && 0 <= y)) || (((((y <= 0 && 0 <= x + 5) && N <= 10) && x <= 0) && 6 <= i) && 0 <= y + 1)) || (((((x <= 3 && y <= 0) && N <= 10) && 0 <= y + 2) && 5 <= i) && 0 <= x)) || (((((y <= 2 && 3 <= i) && N <= 10) && x <= 1) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 0) && 0 <= x + 3) && 0 <= y + 3) && 6 <= i)) || (((((((9 <= i && y <= 0) && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y + 2147483648) || (((((9 <= i && y <= 0) && N <= 10) && 0 <= y + 2147483648) && x <= 2) && 0 <= x)) && 0 <= y + 7)) || (((((y <= 0 && N <= 10) && x <= 5) && 6 <= i) && 0 <= y + 1) && 0 <= x)) || (((((10 <= i && y <= 2) && N <= 10) && x <= 0) && 0 <= x + 8) && 0 <= y)) || (((((x <= 4 && y <= 0) && N <= 10) && 5 <= i) && 0 <= y + 1) && 0 <= x)) || (((((10 <= i && 0 <= y + 4) && y <= 0) && N <= 10) && x <= 0) && 0 <= x + 6)) || (((((x <= 4 && y <= 0) && N <= 10) && 7 <= i) && 0 <= y + 3) && 0 <= x)) || (((((0 <= x + 4 && N <= 10) && y <= 3) && 7 <= i) && x <= 0) && 0 <= y)) || (((((y <= 2 && x <= 4) && N <= 10) && 6 <= i) && 0 <= x) && 0 <= y)) || (((((x <= 3 && N <= 10) && y <= 3) && 6 <= i) && 0 <= x) && 0 <= y)) || (((((9 <= i && y <= 0) && N <= 10) && 0 <= y + 3) && 0 <= x) && x <= 6)) || ((((((N <= 10 && x <= 1) && 2 <= i) && 0 <= x) || (((0 <= x + 1 && N <= 10) && 2 <= i) && x <= 0)) && y <= 0) && 0 <= y + 1)) || ((((((3 <= i && N <= 10) && x <= 1) && 0 <= x) || (((0 <= x + 1 && 3 <= i) && N <= 10) && x <= 0)) && y <= 0) && 0 <= y + 2)) || (((((y <= 1 && x <= 4) && N <= 10) && 5 <= i) && 0 <= x) && 0 <= y)) || (((((10 <= i && N <= 10) && y <= 3) && x <= 0) && 0 <= x + 7) && 0 <= y)) || (((((y <= 1 && N <= 10) && x <= 5) && 6 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && 2 <= i) && 0 <= y + 2) && x <= 0) && 0 <= x)) || (((((x <= 3 && 10 <= i) && N <= 10) && 0 <= x) && 0 <= y) && y <= 7)) || (((((9 <= i && y <= 4) && 0 <= x + 5) && N <= 10) && x <= 0) && 0 <= y)) || (((((9 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 3) && 0 <= x + 6)) || (((((10 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 2) && 0 <= x + 8)) || (((((9 <= i && 0 <= y + 4) && y <= 0) && 0 <= x + 5) && N <= 10) && x <= 0)) || (((((0 <= y + 4 && y <= 0) && N <= 10) && x <= 1) && 5 <= i) && 0 <= x)) || (((((10 <= i && x <= 8) && y <= 2) && N <= 10) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && 2 <= i) && 0 <= x + 2) && x <= 0) && 0 <= y)) || (((((y <= 0 && N <= 10) && 7 <= i) && x <= 0) && 0 <= x + 6) && 0 <= y + 1)) || (0 <= y + 9 && 0 <= x + 1 && ((((((9 <= i && y <= 0) && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y + 2147483648) || (((((9 <= i && y <= 0) && N <= 10) && 0 <= y + 2147483648) && x <= 2) && 0 <= x)))) || (((((10 <= i && y <= 1) && N <= 10) && x <= 9) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && 7 <= i) && x <= 0) && 0 <= x + 7) && 0 <= y)) || (((((N <= 10 && y <= 3) && x <= 0) && 0 <= x + 3) && 6 <= i) && 0 <= y)) || ((((10 <= i && N <= 10) && x <= 2) && 0 <= x) && 0 <= y)) || (((((0 <= x + 1 && N <= 10) && y <= 3) && x <= 0) && 4 <= i) && 0 <= y)) || (((((N <= 10 && y <= 3) && x <= 1) && 4 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 1 && N <= 10) && x <= 0) && 8 <= i) && 0 <= x + 7) && 0 <= y)) || (((((10 <= i && y <= 0) && N <= 10) && x <= 5) && 0 <= y + 5) && 0 <= x)) || (((((y <= 2 && N <= 10) && 8 <= i) && 0 <= x) && 0 <= y) && x <= 6)) || (((((y <= 2 && N <= 10) && x <= 0) && 0 <= x + 3) && 5 <= i) && 0 <= y)) || (((((y <= 0 && N <= 10) && 7 <= i) && 0 <= y + 1) && 0 <= x) && x <= 6)) || (((((y <= 5 && N <= 10) && x <= 0) && 8 <= i) && 0 <= x + 3) && 0 <= y)) || (((((10 <= i && 0 <= x + 4) && y <= 0) && 0 <= y + 6) && N <= 10) && x <= 0)) || (((((x <= 3 && y <= 0) && N <= 10) && 8 <= i) && 0 <= y + 5) && 0 <= x)) || (((((9 <= i && 0 <= x + 4) && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 5)) || (((((y <= 5 && 10 <= i) && 0 <= x + 5) && N <= 10) && x <= 0) && 0 <= y)) || ((((((y <= 0 && N <= 10) && 7 <= i) && x <= 2) && 0 <= x) || ((((y <= 0 && N <= 10) && 7 <= i) && 0 <= x + 2) && x <= 0)) && 0 <= y + 5)) || (((((0 <= x + 1 && y <= 4) && N <= 10) && x <= 0) && 5 <= i) && 0 <= y)) || (((((9 <= i && y <= 5) && x <= 4) && N <= 10) && 0 <= x) && 0 <= y)) || (((((y <= 0 && 3 <= i) && N <= 10) && x <= 0) && 0 <= x + 3) && 0 <= y)) || (((((x <= 4 && y <= 0) && N <= 10) && 4 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 2 && 0 <= x + 5) && N <= 10) && 7 <= i) && x <= 0) && 0 <= y)) || (((((y <= 2 && N <= 10) && x <= 2) && 4 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 7) && 7 <= i) && 0 <= x) && 0 <= y)) || (((((0 <= x + 4 && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 2) && 6 <= i)) || (((((y <= 4 && N <= 10) && 7 <= i) && x <= 0) && 0 <= x + 3) && 0 <= y)) || (((((y <= 2 && N <= 10) && 7 <= i) && x <= 5) && 0 <= x) && 0 <= y)) || (((((y <= 4 && N <= 10) && x <= 2) && 6 <= i) && 0 <= x) && 0 <= y)) || (((((10 <= i && y <= 0) && N <= 10) && x <= 9) && 0 <= y + 1) && 0 <= x)) || (((((0 <= x + 4 && y <= 0) && N <= 10) && x <= 0) && 4 <= i) && 0 <= y)) || (((((x <= 4 && y <= 0) && N <= 10) && 0 <= y + 2) && 6 <= i) && 0 <= x)) || ((((((N <= 10 && 7 <= i) && x <= 1) && 0 <= x) && 0 <= y) || ((((0 <= x + 1 && N <= 10) && 7 <= i) && x <= 0) && 0 <= y)) && y <= 6)) || (((((y <= 5 && N <= 10) && 7 <= i) && 0 <= x + 2) && x <= 0) && 0 <= y)) || (((((y <= 2 && N <= 10) && 0 <= x + 2) && x <= 0) && 4 <= i) && 0 <= y)) || (((((0 <= y + 4 && y <= 0) && N <= 10) && 0 <= x + 2) && x <= 0) && 6 <= i)) || (((((y <= 1 && N <= 10) && x <= 0) && 0 <= x + 3) && 4 <= i) && 0 <= y)) || (((((10 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 2147483648) && 0 <= x + 3)) || (((((x <= 3 && y <= 1) && N <= 10) && 4 <= i) && 0 <= x) && 0 <= y)) || (((((0 <= y + 4 && y <= 0) && N <= 10) && x <= 0) && 4 <= i) && 0 <= x)) || (((((y <= 1 && x <= 7) && N <= 10) && 8 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 5 && N <= 10) && x <= 0) && 5 <= i) && 0 <= x) && 0 <= y)) || (((((9 <= i && y <= 2) && x <= 7) && N <= 10) && 0 <= x) && 0 <= y)) || (((((0 <= x + 1 && y <= 0) && 0 <= y + 6) && N <= 10) && 7 <= i) && x <= 0) || (((((y <= 0 && 0 <= y + 6) && N <= 10) && 7 <= i) && x <= 1) && 0 <= x)) || (((((y <= 4 && N <= 10) && 0 <= x + 2) && x <= 0) && 6 <= i) && 0 <= y)) || (((((y <= 0 && 0 <= x + 5) && N <= 10) && 7 <= i) && x <= 0) && 0 <= y + 2)) || (((((y <= 1 && N <= 10) && 7 <= i) && 0 <= x) && 0 <= y) && x <= 6)) || (((((9 <= i && y <= 2) && N <= 10) && x <= 0) && 0 <= x + 7) && 0 <= y)) || (((((10 <= i && x <= 4) && N <= 10) && 0 <= x) && 0 <= y) && y <= 6)) || (((((y <= 0 && 0 <= y + 6) && N <= 10) && 8 <= i) && x <= 2) && 0 <= x)) || (((((y <= 5 && 0 <= x + 1) && N <= 10) && x <= 0) && 6 <= i) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 0) && 0 <= x + 3) && 4 <= i) && 0 <= y + 1)) || (((((10 <= i && x <= 8) && y <= 0) && N <= 10) && 0 <= y + 2) && 0 <= x)) || (((((9 <= i && y <= 1) && N <= 10) && x <= 0) && 0 <= x + 8) && 0 <= y)) || (((((9 <= i && y <= 1) && x <= 8) && N <= 10) && 0 <= x) && 0 <= y)) || (((((0 <= x + 1 && 0 <= y + 4) && y <= 0) && N <= 10) && x <= 0) && 5 <= i)) || (((((0 <= y + 4 && y <= 0) && N <= 10) && 7 <= i) && x <= 0) && 0 <= x + 3)) || (((((10 <= i && y <= 1) && 0 <= x + 2147483648) && N <= 10) && x <= 0) && 0 <= y)) || (((((10 <= i && y <= 0) && x <= 7) && N <= 10) && 0 <= y + 3) && 0 <= x)) || (((((x <= 3 && y <= 5) && N <= 10) && 8 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 1 && 3 <= i) && N <= 10) && x <= 2) && 0 <= x) && 0 <= y)) || (((((x <= 3 && 9 <= i) && y <= 0) && 0 <= y + 6) && N <= 10) && 0 <= x)) || ((((((0 <= x + 1 && y <= 0) && N <= 10) && x <= 0) && 4 <= i) || ((((y <= 0 && N <= 10) && x <= 1) && 4 <= i) && 0 <= x)) && 0 <= y + 3)) || (((((10 <= i && x <= 7) && N <= 10) && y <= 3) && 0 <= x) && 0 <= y)) || (((((9 <= i && x <= 4) && y <= 0) && N <= 10) && 0 <= y + 5) && 0 <= x)) || (((((y <= 0 && 3 <= i) && N <= 10) && x <= 0) && 0 <= y + 3) && 0 <= x)) || (((((0 <= x + 4 && y <= 0) && N <= 10) && x <= 0) && 5 <= i) && 0 <= y + 1)) || (((((0 <= x + 5 && N <= 10) && y <= 3) && x <= 0) && 8 <= i) && 0 <= y)) || (((((y <= 1 && N <= 10) && 7 <= i) && x <= 0) && 0 <= x + 6) && 0 <= y)) || (((((x <= 4 && N <= 10) && y <= 3) && 7 <= i) && 0 <= x) && 0 <= y)) || (((((10 <= i && y <= 4) && N <= 10) && 0 <= x) && 0 <= y) && x <= 6)) || (((((9 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= x + 9) && 0 <= y)) || (((((y <= 0 && N <= 10) && 0 <= y + 2) && x <= 2) && 4 <= i) && 0 <= x)) || (((((x <= 3 && y <= 0) && N <= 10) && 0 <= y + 3) && 6 <= i) && 0 <= x)) || (((((9 <= i && x <= 8) && y <= 0) && N <= 10) && 0 <= y + 1) && 0 <= x)) || (((((9 <= i && y <= 0) && x <= 9) && N <= 10) && 0 <= x) && 0 <= y)) || (((((N <= 10 && 8 <= i) && x <= 2) && 0 <= x) && 0 <= y) && y <= 6)) || (((((10 <= i && N <= 10) && x <= 0) && 0 <= x + 3) && 0 <= y) && y <= 7)) || (((((9 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= x + 8) && 0 <= y + 1)) || (((((y <= 0 && N <= 10) && x <= 0) && 8 <= i) && 0 <= x + 3) && 0 <= y + 5)) || (((((y <= 0 && 0 <= x + 5) && N <= 10) && x <= 0) && 5 <= i) && 0 <= y)) || ((((((((0 <= x + 1 && y <= 0) && N <= 10) && x <= 0) && 8 <= i) && 0 <= y + 2147483648) || (((((y <= 0 && N <= 10) && x <= 1) && 8 <= i) && 0 <= y + 2147483648) && 0 <= x)) && 0 <= y + 8) && 0 <= x)) || (((((y <= 0 && 3 <= i) && N <= 10) && x <= 2) && 0 <= y + 1) && 0 <= x)) || (((((y <= 0 && 0 <= x + 5) && N <= 10) && x <= 0) && 8 <= i) && 0 <= y + 3)) || (((((N <= 10 && x <= 0) && 6 <= i) && 0 <= y) && 0 <= x) && y <= 6)) || (((((y <= 0 && N <= 10) && x <= 0) && 0 <= y + 2) && 0 <= x + 3) && 5 <= i)) || (((((y <= 0 && N <= 10) && 7 <= i) && 0 <= y + 2) && x <= 5) && 0 <= x)) || (((((y <= 2 && N <= 10) && 2 <= i) && x <= 0) && 0 <= x) && 0 <= y)) || (((((x <= 3 && y <= 0) && 3 <= i) && N <= 10) && 0 <= x) && 0 <= y)) || (((((10 <= i && y <= 4) && N <= 10) && x <= 0) && 0 <= x + 6) && 0 <= y)) || ((((10 <= i && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y)) || (((((10 <= i && 0 <= x + 4) && N <= 10) && x <= 0) && 0 <= y) && y <= 6)) || (((((x <= 3 && 0 <= y + 4) && y <= 0) && N <= 10) && 7 <= i) && 0 <= x)) || (((((y <= 0 && N <= 10) && 5 <= i) && x <= 5) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 0) && 0 <= x) && 0 <= y) && 0 <= i)) || (((((y <= 1 && 3 <= i) && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y)) || (((((N <= 10 && y <= 3) && 8 <= i) && x <= 5) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && 8 <= i) && 0 <= y + 3) && x <= 5) && 0 <= x)) || (((((y <= 0 && 0 <= y + 6) && N <= 10) && 0 <= x + 2) && x <= 0) && 8 <= i)) || (((((x <= 3 && 10 <= i) && y <= 0) && N <= 10) && 0 <= y + 2147483648) && 0 <= x)) || (((((0 <= y + 4 && y <= 0) && N <= 10) && x <= 2) && 6 <= i) && 0 <= x)) || (((((y <= 2 && 0 <= x + 4) && N <= 10) && x <= 0) && 6 <= i) && 0 <= y)) || (((((y <= 0 && 3 <= i) && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y + 1)) || (((((9 <= i && y <= 0) && 0 <= y + 6) && N <= 10) && x <= 0) && 0 <= x + 3)) || (((((10 <= i && x <= 4) && y <= 0) && 0 <= y + 6) && N <= 10) && 0 <= x)) || (((((N <= 10 && 7 <= i) && x <= 0) && 0 <= y) && 0 <= x) && y <= 7)) || (((((x <= 3 && 9 <= i) && N <= 10) && 0 <= x) && 0 <= y) && y <= 6)) || (((((N <= 10 && 8 <= i) && x <= 0) && y <= 8) && 0 <= y) && 0 <= x)) || (((((10 <= i && 0 <= y + 4) && y <= 0) && N <= 10) && 0 <= x) && x <= 6)) || (((((y <= 0 && N <= 10) && 0 <= x + 2) && x <= 0) && 5 <= i) && 0 <= y + 3) || (((((y <= 0 && N <= 10) && x <= 2) && 5 <= i) && 0 <= y + 3) && 0 <= x)) || (((((x <= 4 && y <= 4) && N <= 10) && 8 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 0) && 8 <= i) && 0 <= x + 8) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 0) && 8 <= i) && 0 <= y + 2) && 0 <= x + 6)) || (((((y <= 4 && N <= 10) && x <= 1) && 5 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 0) && 8 <= i) && 0 <= x + 7) && 0 <= y + 1)) || (((((10 <= i && 0 <= x + 2147483648) && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 1)) || (((((9 <= i && 0 <= y + 4) && y <= 0) && N <= 10) && x <= 5) && 0 <= x)) || (((((0 <= x + 4 && y <= 0) && N <= 10) && 7 <= i) && x <= 0) && 0 <= y + 3)) || (((((y <= 0 && 0 <= y + 6) && N <= 10) && x <= 0) && 6 <= i) && 0 <= x)) || (((((((0 <= x + 1 && y <= 0) && N <= 10) && x <= 0) && 8 <= i) && 0 <= y + 2147483648) || (((((y <= 0 && N <= 10) && x <= 1) && 8 <= i) && 0 <= y + 2147483648) && 0 <= x)) && 0 <= y + 7)) || (((((y <= 1 && 0 <= x + 5) && N <= 10) && x <= 0) && 6 <= i) && 0 <= y)) || (((((x <= 3 && y <= 0) && N <= 10) && 4 <= i) && 0 <= y + 1) && 0 <= x)) || (((((x <= 3 && y <= 4) && N <= 10) && 7 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 5 && N <= 10) && x <= 1) && 6 <= i) && 0 <= x) && 0 <= y)) || (((((1 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 1) && 0 <= x)) || (((((((9 <= i && 0 <= x + 1) && N <= 10) && x <= 0) && 0 <= y) || ((((9 <= i && N <= 10) && x <= 1) && 0 <= x) && 0 <= y)) && y <= 9) && 0 <= x)) || (((((y <= 0 && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y + 2) && 4 <= i)) || (((((9 <= i && N <= 10) && y <= 3) && x <= 0) && 0 <= x + 6) && 0 <= y)) || (((((10 <= i && y <= 0) && 0 <= x + 5) && N <= 10) && x <= 0) && 0 <= y + 5)) || (((((y <= 0 && N <= 10) && 8 <= i) && 0 <= y + 2) && 0 <= x) && x <= 6)) || (((((9 <= i && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y) && y <= 7)) || (((((y <= 0 && N <= 10) && 7 <= i) && x <= 0) && 0 <= y + 7) && 0 <= x)) || (((((y <= 4 && N <= 10) && x <= 0) && 4 <= i) && 0 <= x) && 0 <= y)) || (((((9 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 2) && 0 <= x + 7)) || ((((10 <= i && y <= 0) && N <= 10) && 0 <= x) && 0 <= y) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 10 error locations. Result: SAFE, OverallTime: 149.9s, OverallIterations: 47, TraceHistogramMax: 11, AutomataDifference: 8.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 116.4s, HoareTripleCheckerStatistics: 1231 SDtfs, 5757 SDslu, 4420 SDs, 0 SdLazy, 1307 SolverSat, 863 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2197 GetRequests, 1950 SyntacticMatches, 0 SemanticMatches, 247 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55733occurred in iteration=40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 10.0s AutomataMinimizationTime, 47 MinimizatonAttempts, 130578 StatesRemovedByMinimization, 41 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 1768 NumberOfFragments, 4435 HoareAnnotationTreeSize, 2 FomulaSimplifications, 58518 FormulaSimplificationTreeSizeReduction, 25.6s HoareSimplificationTime, 2 FomulaSimplificationsInter, 66442 FormulaSimplificationTreeSizeReductionInter, 90.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 4011 NumberOfCodeBlocks, 4003 NumberOfCodeBlocksAsserted, 193 NumberOfCheckSat, 3923 ConstructedInterpolants, 0 QuantifiedInterpolants, 966205 SizeOfPredicates, 3 NumberOfNonLiveVariables, 4584 ConjunctsInSsa, 277 ConjunctsInUnsatCore, 88 InterpolantComputations, 9 PerfectInterpolantSequences, 724/11834 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...