./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/byte_add_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a4044ca2-21ea-46fa-bbd7-6a0dfe2b4c61/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a4044ca2-21ea-46fa-bbd7-6a0dfe2b4c61/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a4044ca2-21ea-46fa-bbd7-6a0dfe2b4c61/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a4044ca2-21ea-46fa-bbd7-6a0dfe2b4c61/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/byte_add_1-2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_a4044ca2-21ea-46fa-bbd7-6a0dfe2b4c61/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a4044ca2-21ea-46fa-bbd7-6a0dfe2b4c61/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 32bit --witnessprinter.graph.data.programhash c172e82b435756efbbcf3396e72051c66081518f ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/working_dir_a4044ca2-21ea-46fa-bbd7-6a0dfe2b4c61/bin/uautomizer/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:00:24,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:00:24,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:00:24,686 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:00:24,687 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:00:24,689 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:00:24,690 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:00:24,692 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:00:24,695 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:00:24,696 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:00:24,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:00:24,699 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:00:24,699 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:00:24,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:00:24,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:00:24,702 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:00:24,703 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:00:24,704 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:00:24,705 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:00:24,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:00:24,708 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:00:24,709 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:00:24,710 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:00:24,711 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:00:24,713 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:00:24,713 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:00:24,714 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:00:24,714 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:00:24,715 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:00:24,716 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:00:24,716 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:00:24,717 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:00:24,718 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:00:24,718 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:00:24,719 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:00:24,719 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:00:24,720 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:00:24,720 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:00:24,721 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:00:24,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:00:24,722 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:00:24,723 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a4044ca2-21ea-46fa-bbd7-6a0dfe2b4c61/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2019-10-22 09:00:24,735 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:00:24,735 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:00:24,737 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:00:24,737 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:00:24,737 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:00:24,737 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:00:24,738 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:00:24,738 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:00:24,738 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:00:24,738 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:00:24,738 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:00:24,739 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:00:24,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:00:24,739 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:00:24,739 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-10-22 09:00:24,739 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:00:24,740 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:00:24,740 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:00:24,740 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:00:24,741 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:00:24,741 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:00:24,741 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:00:24,741 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:00:24,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:00:24,742 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:00:24,742 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:00:24,742 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:00:24,742 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:00:24,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:00:24,743 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:00:24,743 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/working_dir_a4044ca2-21ea-46fa-bbd7-6a0dfe2b4c61/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c172e82b435756efbbcf3396e72051c66081518f [2019-10-22 09:00:24,771 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:00:24,783 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:00:24,786 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:00:24,788 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:00:24,788 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:00:24,789 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a4044ca2-21ea-46fa-bbd7-6a0dfe2b4c61/bin/uautomizer/../../sv-benchmarks/c/bitvector/byte_add_1-2.i [2019-10-22 09:00:24,841 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a4044ca2-21ea-46fa-bbd7-6a0dfe2b4c61/bin/uautomizer/data/a4a7b94b4/59e16ef4e8a94a7da9afb8b4eaca8ec0/FLAGc9b690ddc [2019-10-22 09:00:25,268 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:00:25,269 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a4044ca2-21ea-46fa-bbd7-6a0dfe2b4c61/sv-benchmarks/c/bitvector/byte_add_1-2.i [2019-10-22 09:00:25,276 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a4044ca2-21ea-46fa-bbd7-6a0dfe2b4c61/bin/uautomizer/data/a4a7b94b4/59e16ef4e8a94a7da9afb8b4eaca8ec0/FLAGc9b690ddc [2019-10-22 09:00:25,287 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a4044ca2-21ea-46fa-bbd7-6a0dfe2b4c61/bin/uautomizer/data/a4a7b94b4/59e16ef4e8a94a7da9afb8b4eaca8ec0 [2019-10-22 09:00:25,290 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:00:25,291 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:00:25,294 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:25,294 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:00:25,298 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:00:25,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:25" (1/1) ... [2019-10-22 09:00:25,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8f4274c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:25, skipping insertion in model container [2019-10-22 09:00:25,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:25" (1/1) ... [2019-10-22 09:00:25,310 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:00:25,335 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:00:25,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:25,661 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:00:25,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:25,709 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:00:25,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:25 WrapperNode [2019-10-22 09:00:25,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:25,710 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:25,710 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:00:25,710 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:00:25,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:25" (1/1) ... [2019-10-22 09:00:25,729 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:25" (1/1) ... [2019-10-22 09:00:25,762 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:25,762 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:00:25,762 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:00:25,762 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:00:25,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:25" (1/1) ... [2019-10-22 09:00:25,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:25" (1/1) ... [2019-10-22 09:00:25,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:25" (1/1) ... [2019-10-22 09:00:25,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:25" (1/1) ... [2019-10-22 09:00:25,799 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:25" (1/1) ... [2019-10-22 09:00:25,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:25" (1/1) ... [2019-10-22 09:00:25,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:25" (1/1) ... [2019-10-22 09:00:25,816 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:00:25,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:00:25,816 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:00:25,816 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:00:25,817 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4044ca2-21ea-46fa-bbd7-6a0dfe2b4c61/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 [2019-10-22 09:00:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:00:25,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:00:26,390 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:00:26,391 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-22 09:00:26,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:26 BoogieIcfgContainer [2019-10-22 09:00:26,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:00:26,393 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:00:26,393 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:00:26,396 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:00:26,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:00:25" (1/3) ... [2019-10-22 09:00:26,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c3923da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:26, skipping insertion in model container [2019-10-22 09:00:26,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:25" (2/3) ... [2019-10-22 09:00:26,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c3923da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:26, skipping insertion in model container [2019-10-22 09:00:26,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:26" (3/3) ... [2019-10-22 09:00:26,400 INFO L109 eAbstractionObserver]: Analyzing ICFG byte_add_1-2.i [2019-10-22 09:00:26,410 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:00:26,422 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 38 error locations. [2019-10-22 09:00:26,433 INFO L249 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2019-10-22 09:00:26,473 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:00:26,473 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:00:26,473 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:00:26,473 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:00:26,473 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:00:26,474 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:00:26,474 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:00:26,474 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:00:26,504 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2019-10-22 09:00:26,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 09:00:26,515 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:26,516 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 09:00:26,519 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:00:26,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:26,527 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-10-22 09:00:26,535 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:26,536 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661272897] [2019-10-22 09:00:26,536 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:26,536 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:26,536 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:26,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:26,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:26,664 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661272897] [2019-10-22 09:00:26,665 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:26,665 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-10-22 09:00:26,665 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941553966] [2019-10-22 09:00:26,670 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 09:00:26,670 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:26,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 09:00:26,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 09:00:26,684 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2019-10-22 09:00:26,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:26,705 INFO L93 Difference]: Finished difference Result 134 states and 176 transitions. [2019-10-22 09:00:26,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 09:00:26,706 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 3 [2019-10-22 09:00:26,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:26,716 INFO L225 Difference]: With dead ends: 134 [2019-10-22 09:00:26,717 INFO L226 Difference]: Without dead ends: 68 [2019-10-22 09:00:26,720 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 09:00:26,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2019-10-22 09:00:26,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2019-10-22 09:00:26,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-10-22 09:00:26,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 94 transitions. [2019-10-22 09:00:26,756 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 94 transitions. Word has length 3 [2019-10-22 09:00:26,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:26,756 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 94 transitions. [2019-10-22 09:00:26,757 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 09:00:26,757 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions. [2019-10-22 09:00:26,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 09:00:26,758 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:26,758 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:26,759 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:00:26,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:26,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1126401592, now seen corresponding path program 1 times [2019-10-22 09:00:26,760 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:26,760 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437526624] [2019-10-22 09:00:26,760 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:26,761 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:26,761 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:26,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:26,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:26,866 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437526624] [2019-10-22 09:00:26,866 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:26,866 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:00:26,866 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576256289] [2019-10-22 09:00:26,868 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:00:26,868 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:26,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:00:26,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:00:26,869 INFO L87 Difference]: Start difference. First operand 68 states and 94 transitions. Second operand 3 states. [2019-10-22 09:00:27,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:27,050 INFO L93 Difference]: Finished difference Result 144 states and 211 transitions. [2019-10-22 09:00:27,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:00:27,051 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-10-22 09:00:27,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:27,052 INFO L225 Difference]: With dead ends: 144 [2019-10-22 09:00:27,053 INFO L226 Difference]: Without dead ends: 97 [2019-10-22 09:00:27,054 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:00:27,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-10-22 09:00:27,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 93. [2019-10-22 09:00:27,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-10-22 09:00:27,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 123 transitions. [2019-10-22 09:00:27,064 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 123 transitions. Word has length 12 [2019-10-22 09:00:27,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:27,065 INFO L462 AbstractCegarLoop]: Abstraction has 93 states and 123 transitions. [2019-10-22 09:00:27,065 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:00:27,065 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 123 transitions. [2019-10-22 09:00:27,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 09:00:27,066 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:27,066 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:27,067 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:00:27,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:27,067 INFO L82 PathProgramCache]: Analyzing trace with hash 1247347973, now seen corresponding path program 1 times [2019-10-22 09:00:27,068 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:27,068 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295448308] [2019-10-22 09:00:27,068 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:27,069 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:27,069 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:27,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:27,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:27,219 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295448308] [2019-10-22 09:00:27,219 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:27,219 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:00:27,222 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595907012] [2019-10-22 09:00:27,223 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:00:27,223 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:27,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:00:27,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:00:27,224 INFO L87 Difference]: Start difference. First operand 93 states and 123 transitions. Second operand 5 states. [2019-10-22 09:00:27,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:27,591 INFO L93 Difference]: Finished difference Result 237 states and 316 transitions. [2019-10-22 09:00:27,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:00:27,592 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-10-22 09:00:27,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:27,594 INFO L225 Difference]: With dead ends: 237 [2019-10-22 09:00:27,594 INFO L226 Difference]: Without dead ends: 173 [2019-10-22 09:00:27,594 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:00:27,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2019-10-22 09:00:27,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 106. [2019-10-22 09:00:27,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-10-22 09:00:27,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 139 transitions. [2019-10-22 09:00:27,605 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 139 transitions. Word has length 19 [2019-10-22 09:00:27,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:27,606 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 139 transitions. [2019-10-22 09:00:27,606 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:00:27,606 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 139 transitions. [2019-10-22 09:00:27,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 09:00:27,607 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:27,607 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:27,609 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:00:27,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:27,609 INFO L82 PathProgramCache]: Analyzing trace with hash 630219950, now seen corresponding path program 1 times [2019-10-22 09:00:27,609 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:27,610 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590476250] [2019-10-22 09:00:27,610 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:27,610 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:27,610 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:27,712 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 09:00:27,712 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590476250] [2019-10-22 09:00:27,712 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:27,712 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:00:27,713 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986840549] [2019-10-22 09:00:27,713 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:00:27,713 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:27,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:00:27,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:00:27,714 INFO L87 Difference]: Start difference. First operand 106 states and 139 transitions. Second operand 3 states. [2019-10-22 09:00:27,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:27,729 INFO L93 Difference]: Finished difference Result 171 states and 226 transitions. [2019-10-22 09:00:27,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:00:27,730 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-10-22 09:00:27,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:27,731 INFO L225 Difference]: With dead ends: 171 [2019-10-22 09:00:27,731 INFO L226 Difference]: Without dead ends: 80 [2019-10-22 09:00:27,731 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:00:27,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2019-10-22 09:00:27,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2019-10-22 09:00:27,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-10-22 09:00:27,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 105 transitions. [2019-10-22 09:00:27,747 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 105 transitions. Word has length 22 [2019-10-22 09:00:27,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:27,747 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 105 transitions. [2019-10-22 09:00:27,747 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:00:27,747 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 105 transitions. [2019-10-22 09:00:27,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 09:00:27,748 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:27,748 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:27,749 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:00:27,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:27,749 INFO L82 PathProgramCache]: Analyzing trace with hash 898692249, now seen corresponding path program 1 times [2019-10-22 09:00:27,750 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:27,750 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605319981] [2019-10-22 09:00:27,750 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:27,750 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:27,750 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:27,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:27,848 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605319981] [2019-10-22 09:00:27,848 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:27,848 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:00:27,848 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278122399] [2019-10-22 09:00:27,849 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:00:27,849 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:27,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:00:27,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:00:27,850 INFO L87 Difference]: Start difference. First operand 80 states and 105 transitions. Second operand 3 states. [2019-10-22 09:00:27,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:27,867 INFO L93 Difference]: Finished difference Result 104 states and 138 transitions. [2019-10-22 09:00:27,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:00:27,869 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2019-10-22 09:00:27,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:27,870 INFO L225 Difference]: With dead ends: 104 [2019-10-22 09:00:27,870 INFO L226 Difference]: Without dead ends: 91 [2019-10-22 09:00:27,870 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:00:27,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-10-22 09:00:27,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2019-10-22 09:00:27,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-10-22 09:00:27,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 120 transitions. [2019-10-22 09:00:27,879 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 120 transitions. Word has length 28 [2019-10-22 09:00:27,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:27,879 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 120 transitions. [2019-10-22 09:00:27,879 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:00:27,879 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 120 transitions. [2019-10-22 09:00:27,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 09:00:27,880 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:27,881 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:27,882 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:00:27,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:27,882 INFO L82 PathProgramCache]: Analyzing trace with hash -112425001, now seen corresponding path program 1 times [2019-10-22 09:00:27,882 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:27,882 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729075071] [2019-10-22 09:00:27,883 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:27,883 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:27,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:27,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:28,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:28,116 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729075071] [2019-10-22 09:00:28,117 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:28,117 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 09:00:28,117 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473133487] [2019-10-22 09:00:28,118 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:00:28,118 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:28,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:00:28,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:00:28,119 INFO L87 Difference]: Start difference. First operand 91 states and 120 transitions. Second operand 6 states. [2019-10-22 09:00:28,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:28,621 INFO L93 Difference]: Finished difference Result 278 states and 378 transitions. [2019-10-22 09:00:28,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 09:00:28,622 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2019-10-22 09:00:28,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:28,624 INFO L225 Difference]: With dead ends: 278 [2019-10-22 09:00:28,624 INFO L226 Difference]: Without dead ends: 215 [2019-10-22 09:00:28,625 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:00:28,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2019-10-22 09:00:28,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 129. [2019-10-22 09:00:28,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-10-22 09:00:28,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 164 transitions. [2019-10-22 09:00:28,641 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 164 transitions. Word has length 28 [2019-10-22 09:00:28,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:28,641 INFO L462 AbstractCegarLoop]: Abstraction has 129 states and 164 transitions. [2019-10-22 09:00:28,641 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:00:28,641 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 164 transitions. [2019-10-22 09:00:28,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 09:00:28,643 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:28,643 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:28,644 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:00:28,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:28,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1196873997, now seen corresponding path program 1 times [2019-10-22 09:00:28,645 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:28,645 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477684990] [2019-10-22 09:00:28,646 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:28,646 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:28,646 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:28,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:28,739 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:28,740 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477684990] [2019-10-22 09:00:28,740 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025949754] [2019-10-22 09:00:28,741 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4044ca2-21ea-46fa-bbd7-6a0dfe2b4c61/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 [2019-10-22 09:00:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:28,796 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 09:00:28,802 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:28,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:28,881 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-22 09:00:28,882 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2019-10-22 09:00:28,883 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996875445] [2019-10-22 09:00:28,883 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:00:28,884 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:28,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:00:28,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:00:28,884 INFO L87 Difference]: Start difference. First operand 129 states and 164 transitions. Second operand 4 states. [2019-10-22 09:00:29,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:29,159 INFO L93 Difference]: Finished difference Result 251 states and 358 transitions. [2019-10-22 09:00:29,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:00:29,159 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-10-22 09:00:29,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:29,161 INFO L225 Difference]: With dead ends: 251 [2019-10-22 09:00:29,161 INFO L226 Difference]: Without dead ends: 185 [2019-10-22 09:00:29,161 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:00:29,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2019-10-22 09:00:29,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 158. [2019-10-22 09:00:29,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-10-22 09:00:29,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 193 transitions. [2019-10-22 09:00:29,179 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 193 transitions. Word has length 31 [2019-10-22 09:00:29,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:29,179 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 193 transitions. [2019-10-22 09:00:29,179 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:00:29,180 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 193 transitions. [2019-10-22 09:00:29,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-22 09:00:29,181 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:29,181 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:29,382 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:00:29,383 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:00:29,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:29,384 INFO L82 PathProgramCache]: Analyzing trace with hash 885794486, now seen corresponding path program 1 times [2019-10-22 09:00:29,384 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:29,384 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220539128] [2019-10-22 09:00:29,385 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:29,385 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:29,385 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:29,584 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:29,585 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220539128] [2019-10-22 09:00:29,585 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151242967] [2019-10-22 09:00:29,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4044ca2-21ea-46fa-bbd7-6a0dfe2b4c61/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:00:29,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:29,632 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 09:00:29,634 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:29,689 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 09:00:29,689 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-22 09:00:29,689 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2019-10-22 09:00:29,689 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513626262] [2019-10-22 09:00:29,690 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:00:29,711 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:29,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:00:29,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-10-22 09:00:29,712 INFO L87 Difference]: Start difference. First operand 158 states and 193 transitions. Second operand 4 states. [2019-10-22 09:00:29,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:29,928 INFO L93 Difference]: Finished difference Result 337 states and 447 transitions. [2019-10-22 09:00:29,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:00:29,929 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2019-10-22 09:00:29,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:29,930 INFO L225 Difference]: With dead ends: 337 [2019-10-22 09:00:29,930 INFO L226 Difference]: Without dead ends: 227 [2019-10-22 09:00:29,931 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-10-22 09:00:29,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2019-10-22 09:00:29,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 190. [2019-10-22 09:00:29,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2019-10-22 09:00:29,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 229 transitions. [2019-10-22 09:00:29,939 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 229 transitions. Word has length 38 [2019-10-22 09:00:29,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:29,940 INFO L462 AbstractCegarLoop]: Abstraction has 190 states and 229 transitions. [2019-10-22 09:00:29,940 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:00:29,940 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 229 transitions. [2019-10-22 09:00:29,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-22 09:00:29,941 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:29,942 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:30,142 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:00:30,143 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:00:30,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:30,143 INFO L82 PathProgramCache]: Analyzing trace with hash -606603049, now seen corresponding path program 1 times [2019-10-22 09:00:30,143 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:30,144 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114481410] [2019-10-22 09:00:30,144 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:30,144 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:30,144 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:30,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:30,286 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-22 09:00:30,286 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114481410] [2019-10-22 09:00:30,287 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642972967] [2019-10-22 09:00:30,287 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4044ca2-21ea-46fa-bbd7-6a0dfe2b4c61/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 [2019-10-22 09:00:30,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:30,333 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 09:00:30,334 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:30,377 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-22 09:00:30,378 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-22 09:00:30,378 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2019-10-22 09:00:30,378 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656072158] [2019-10-22 09:00:30,379 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:00:30,379 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:30,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:00:30,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-10-22 09:00:30,381 INFO L87 Difference]: Start difference. First operand 190 states and 229 transitions. Second operand 4 states. [2019-10-22 09:00:30,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:30,601 INFO L93 Difference]: Finished difference Result 401 states and 517 transitions. [2019-10-22 09:00:30,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:00:30,602 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 45 [2019-10-22 09:00:30,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:30,603 INFO L225 Difference]: With dead ends: 401 [2019-10-22 09:00:30,603 INFO L226 Difference]: Without dead ends: 259 [2019-10-22 09:00:30,604 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-10-22 09:00:30,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2019-10-22 09:00:30,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 222. [2019-10-22 09:00:30,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2019-10-22 09:00:30,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 265 transitions. [2019-10-22 09:00:30,612 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 265 transitions. Word has length 45 [2019-10-22 09:00:30,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:30,613 INFO L462 AbstractCegarLoop]: Abstraction has 222 states and 265 transitions. [2019-10-22 09:00:30,613 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:00:30,613 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 265 transitions. [2019-10-22 09:00:30,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-22 09:00:30,614 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:30,615 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:30,815 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:00:30,816 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:00:30,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:30,816 INFO L82 PathProgramCache]: Analyzing trace with hash 491566034, now seen corresponding path program 1 times [2019-10-22 09:00:30,816 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:30,817 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965680005] [2019-10-22 09:00:30,817 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:30,817 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:30,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:30,868 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-22 09:00:30,869 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965680005] [2019-10-22 09:00:30,869 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:30,869 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:00:30,869 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889453140] [2019-10-22 09:00:30,870 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:00:30,870 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:30,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:00:30,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:00:30,870 INFO L87 Difference]: Start difference. First operand 222 states and 265 transitions. Second operand 3 states. [2019-10-22 09:00:30,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:30,883 INFO L93 Difference]: Finished difference Result 259 states and 306 transitions. [2019-10-22 09:00:30,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:00:30,883 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-10-22 09:00:30,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:30,884 INFO L225 Difference]: With dead ends: 259 [2019-10-22 09:00:30,885 INFO L226 Difference]: Without dead ends: 198 [2019-10-22 09:00:30,885 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:00:30,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2019-10-22 09:00:30,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 177. [2019-10-22 09:00:30,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2019-10-22 09:00:30,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 213 transitions. [2019-10-22 09:00:30,892 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 213 transitions. Word has length 52 [2019-10-22 09:00:30,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:30,892 INFO L462 AbstractCegarLoop]: Abstraction has 177 states and 213 transitions. [2019-10-22 09:00:30,893 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:00:30,893 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 213 transitions. [2019-10-22 09:00:30,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-10-22 09:00:30,896 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:30,896 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:30,897 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:00:30,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:30,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1569323720, now seen corresponding path program 1 times [2019-10-22 09:00:30,897 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:30,897 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872120053] [2019-10-22 09:00:30,897 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:30,897 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:30,898 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:30,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:30,969 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-22 09:00:30,969 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872120053] [2019-10-22 09:00:30,970 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:30,970 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:00:30,970 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099634442] [2019-10-22 09:00:30,970 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:00:30,970 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:30,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:00:30,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:00:30,971 INFO L87 Difference]: Start difference. First operand 177 states and 213 transitions. Second operand 4 states. [2019-10-22 09:00:31,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:31,055 INFO L93 Difference]: Finished difference Result 442 states and 535 transitions. [2019-10-22 09:00:31,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:00:31,056 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2019-10-22 09:00:31,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:31,057 INFO L225 Difference]: With dead ends: 442 [2019-10-22 09:00:31,058 INFO L226 Difference]: Without dead ends: 313 [2019-10-22 09:00:31,058 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:00:31,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2019-10-22 09:00:31,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 218. [2019-10-22 09:00:31,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2019-10-22 09:00:31,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 270 transitions. [2019-10-22 09:00:31,066 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 270 transitions. Word has length 61 [2019-10-22 09:00:31,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:31,066 INFO L462 AbstractCegarLoop]: Abstraction has 218 states and 270 transitions. [2019-10-22 09:00:31,066 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:00:31,067 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 270 transitions. [2019-10-22 09:00:31,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-10-22 09:00:31,068 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:31,069 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:31,069 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:00:31,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:31,069 INFO L82 PathProgramCache]: Analyzing trace with hash 481660278, now seen corresponding path program 2 times [2019-10-22 09:00:31,070 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:31,070 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327711507] [2019-10-22 09:00:31,070 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:31,070 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:31,070 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:31,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:31,159 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-22 09:00:31,159 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327711507] [2019-10-22 09:00:31,159 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116785315] [2019-10-22 09:00:31,159 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4044ca2-21ea-46fa-bbd7-6a0dfe2b4c61/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 [2019-10-22 09:00:31,205 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-22 09:00:31,205 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-22 09:00:31,206 INFO L256 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-22 09:00:31,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:31,237 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:31,280 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-22 09:00:31,280 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 09:00:31,281 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2019-10-22 09:00:31,281 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565751971] [2019-10-22 09:00:31,281 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:00:31,281 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:31,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:00:31,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:00:31,282 INFO L87 Difference]: Start difference. First operand 218 states and 270 transitions. Second operand 6 states. [2019-10-22 09:00:31,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:31,507 INFO L93 Difference]: Finished difference Result 493 states and 615 transitions. [2019-10-22 09:00:31,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:00:31,508 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2019-10-22 09:00:31,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:31,509 INFO L225 Difference]: With dead ends: 493 [2019-10-22 09:00:31,509 INFO L226 Difference]: Without dead ends: 323 [2019-10-22 09:00:31,510 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:00:31,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2019-10-22 09:00:31,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 221. [2019-10-22 09:00:31,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2019-10-22 09:00:31,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 273 transitions. [2019-10-22 09:00:31,518 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 273 transitions. Word has length 61 [2019-10-22 09:00:31,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:31,518 INFO L462 AbstractCegarLoop]: Abstraction has 221 states and 273 transitions. [2019-10-22 09:00:31,518 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:00:31,519 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 273 transitions. [2019-10-22 09:00:31,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-10-22 09:00:31,519 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:31,519 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:31,720 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:00:31,721 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:00:31,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:31,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1399599652, now seen corresponding path program 1 times [2019-10-22 09:00:31,721 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:31,721 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166530567] [2019-10-22 09:00:31,721 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:31,721 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:31,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:31,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:31,879 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 44 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-22 09:00:31,879 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166530567] [2019-10-22 09:00:31,879 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3976573] [2019-10-22 09:00:31,879 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4044ca2-21ea-46fa-bbd7-6a0dfe2b4c61/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 [2019-10-22 09:00:31,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:31,927 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 09:00:31,929 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:31,961 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 44 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-22 09:00:31,961 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 09:00:31,961 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4] total 9 [2019-10-22 09:00:31,961 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017672800] [2019-10-22 09:00:31,962 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 09:00:31,962 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:31,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 09:00:31,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2019-10-22 09:00:31,962 INFO L87 Difference]: Start difference. First operand 221 states and 273 transitions. Second operand 9 states. [2019-10-22 09:00:32,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:32,292 INFO L93 Difference]: Finished difference Result 584 states and 733 transitions. [2019-10-22 09:00:32,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 09:00:32,293 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2019-10-22 09:00:32,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:32,294 INFO L225 Difference]: With dead ends: 584 [2019-10-22 09:00:32,294 INFO L226 Difference]: Without dead ends: 406 [2019-10-22 09:00:32,295 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 66 SyntacticMatches, 5 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2019-10-22 09:00:32,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2019-10-22 09:00:32,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 344. [2019-10-22 09:00:32,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2019-10-22 09:00:32,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 422 transitions. [2019-10-22 09:00:32,306 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 422 transitions. Word has length 67 [2019-10-22 09:00:32,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:32,307 INFO L462 AbstractCegarLoop]: Abstraction has 344 states and 422 transitions. [2019-10-22 09:00:32,307 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 09:00:32,307 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 422 transitions. [2019-10-22 09:00:32,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-10-22 09:00:32,308 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:32,308 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:32,509 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:00:32,510 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:00:32,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:32,514 INFO L82 PathProgramCache]: Analyzing trace with hash 642833928, now seen corresponding path program 1 times [2019-10-22 09:00:32,515 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:32,515 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87718382] [2019-10-22 09:00:32,515 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:32,515 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:32,515 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:32,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:32,691 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 09:00:32,691 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87718382] [2019-10-22 09:00:32,691 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:32,692 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 09:00:32,692 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931976677] [2019-10-22 09:00:32,692 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 09:00:32,692 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:32,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 09:00:32,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:00:32,693 INFO L87 Difference]: Start difference. First operand 344 states and 422 transitions. Second operand 8 states. [2019-10-22 09:00:33,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:33,132 INFO L93 Difference]: Finished difference Result 976 states and 1208 transitions. [2019-10-22 09:00:33,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-22 09:00:33,133 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2019-10-22 09:00:33,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:33,135 INFO L225 Difference]: With dead ends: 976 [2019-10-22 09:00:33,135 INFO L226 Difference]: Without dead ends: 627 [2019-10-22 09:00:33,136 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=78, Unknown=0, NotChecked=0, Total=132 [2019-10-22 09:00:33,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2019-10-22 09:00:33,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 541. [2019-10-22 09:00:33,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 541 states. [2019-10-22 09:00:33,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 673 transitions. [2019-10-22 09:00:33,151 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 673 transitions. Word has length 67 [2019-10-22 09:00:33,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:33,151 INFO L462 AbstractCegarLoop]: Abstraction has 541 states and 673 transitions. [2019-10-22 09:00:33,151 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 09:00:33,151 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 673 transitions. [2019-10-22 09:00:33,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-10-22 09:00:33,153 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:33,153 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:33,153 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:00:33,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:33,153 INFO L82 PathProgramCache]: Analyzing trace with hash 127965796, now seen corresponding path program 1 times [2019-10-22 09:00:33,154 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:33,154 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878038835] [2019-10-22 09:00:33,154 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:33,154 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:33,154 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:33,232 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 39 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-22 09:00:33,233 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878038835] [2019-10-22 09:00:33,233 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501142903] [2019-10-22 09:00:33,233 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4044ca2-21ea-46fa-bbd7-6a0dfe2b4c61/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 [2019-10-22 09:00:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:33,273 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 09:00:33,275 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:33,305 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 10 proven. 18 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-22 09:00:33,306 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 09:00:33,306 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 7 [2019-10-22 09:00:33,306 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551806550] [2019-10-22 09:00:33,307 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 09:00:33,307 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:33,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 09:00:33,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:00:33,307 INFO L87 Difference]: Start difference. First operand 541 states and 673 transitions. Second operand 7 states. [2019-10-22 09:00:33,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:33,894 INFO L93 Difference]: Finished difference Result 1476 states and 1835 transitions. [2019-10-22 09:00:33,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-22 09:00:33,895 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 73 [2019-10-22 09:00:33,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:33,898 INFO L225 Difference]: With dead ends: 1476 [2019-10-22 09:00:33,898 INFO L226 Difference]: Without dead ends: 886 [2019-10-22 09:00:33,899 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2019-10-22 09:00:33,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2019-10-22 09:00:33,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 438. [2019-10-22 09:00:33,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 438 states. [2019-10-22 09:00:33,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 577 transitions. [2019-10-22 09:00:33,918 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 577 transitions. Word has length 73 [2019-10-22 09:00:33,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:33,919 INFO L462 AbstractCegarLoop]: Abstraction has 438 states and 577 transitions. [2019-10-22 09:00:33,919 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 09:00:33,919 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 577 transitions. [2019-10-22 09:00:33,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-10-22 09:00:33,919 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:33,923 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:34,123 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:00:34,124 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:00:34,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:34,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1286610050, now seen corresponding path program 1 times [2019-10-22 09:00:34,124 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:34,124 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045482884] [2019-10-22 09:00:34,124 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:34,125 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:34,125 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:34,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:34,249 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2019-10-22 09:00:34,249 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045482884] [2019-10-22 09:00:34,249 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:34,249 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 09:00:34,249 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809216759] [2019-10-22 09:00:34,250 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 09:00:34,250 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:34,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 09:00:34,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:00:34,251 INFO L87 Difference]: Start difference. First operand 438 states and 577 transitions. Second operand 7 states. [2019-10-22 09:00:34,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:34,733 INFO L93 Difference]: Finished difference Result 1486 states and 2011 transitions. [2019-10-22 09:00:34,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-22 09:00:34,733 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2019-10-22 09:00:34,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:34,737 INFO L225 Difference]: With dead ends: 1486 [2019-10-22 09:00:34,737 INFO L226 Difference]: Without dead ends: 1092 [2019-10-22 09:00:34,738 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-10-22 09:00:34,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2019-10-22 09:00:34,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 888. [2019-10-22 09:00:34,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 888 states. [2019-10-22 09:00:34,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 888 states to 888 states and 1202 transitions. [2019-10-22 09:00:34,766 INFO L78 Accepts]: Start accepts. Automaton has 888 states and 1202 transitions. Word has length 79 [2019-10-22 09:00:34,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:34,766 INFO L462 AbstractCegarLoop]: Abstraction has 888 states and 1202 transitions. [2019-10-22 09:00:34,766 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 09:00:34,767 INFO L276 IsEmpty]: Start isEmpty. Operand 888 states and 1202 transitions. [2019-10-22 09:00:34,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-10-22 09:00:34,768 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:34,768 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:34,768 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:00:34,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:34,771 INFO L82 PathProgramCache]: Analyzing trace with hash -56372555, now seen corresponding path program 1 times [2019-10-22 09:00:34,771 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:34,771 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30976139] [2019-10-22 09:00:34,771 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:34,772 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:34,772 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:34,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:34,878 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2019-10-22 09:00:34,878 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30976139] [2019-10-22 09:00:34,878 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:34,879 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 09:00:34,879 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114480719] [2019-10-22 09:00:34,879 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:00:34,879 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:34,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:00:34,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:00:34,879 INFO L87 Difference]: Start difference. First operand 888 states and 1202 transitions. Second operand 6 states. [2019-10-22 09:00:35,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:35,050 INFO L93 Difference]: Finished difference Result 2376 states and 3128 transitions. [2019-10-22 09:00:35,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 09:00:35,050 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 82 [2019-10-22 09:00:35,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:35,055 INFO L225 Difference]: With dead ends: 2376 [2019-10-22 09:00:35,055 INFO L226 Difference]: Without dead ends: 1512 [2019-10-22 09:00:35,056 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:00:35,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2019-10-22 09:00:35,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1060. [2019-10-22 09:00:35,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1060 states. [2019-10-22 09:00:35,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1382 transitions. [2019-10-22 09:00:35,090 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 1382 transitions. Word has length 82 [2019-10-22 09:00:35,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:35,090 INFO L462 AbstractCegarLoop]: Abstraction has 1060 states and 1382 transitions. [2019-10-22 09:00:35,090 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:00:35,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 1382 transitions. [2019-10-22 09:00:35,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-10-22 09:00:35,091 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:35,091 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:35,092 INFO L410 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:00:35,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:35,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1721162641, now seen corresponding path program 1 times [2019-10-22 09:00:35,092 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:35,092 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272181553] [2019-10-22 09:00:35,093 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:35,093 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:35,093 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:35,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:35,209 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2019-10-22 09:00:35,209 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272181553] [2019-10-22 09:00:35,209 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:35,210 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 09:00:35,210 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898590845] [2019-10-22 09:00:35,210 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 09:00:35,210 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:35,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 09:00:35,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:00:35,211 INFO L87 Difference]: Start difference. First operand 1060 states and 1382 transitions. Second operand 8 states. [2019-10-22 09:00:36,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:36,033 INFO L93 Difference]: Finished difference Result 2563 states and 3343 transitions. [2019-10-22 09:00:36,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-22 09:00:36,034 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 82 [2019-10-22 09:00:36,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:36,038 INFO L225 Difference]: With dead ends: 2563 [2019-10-22 09:00:36,038 INFO L226 Difference]: Without dead ends: 1520 [2019-10-22 09:00:36,040 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2019-10-22 09:00:36,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1520 states. [2019-10-22 09:00:36,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1520 to 1284. [2019-10-22 09:00:36,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1284 states. [2019-10-22 09:00:36,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1284 states to 1284 states and 1669 transitions. [2019-10-22 09:00:36,080 INFO L78 Accepts]: Start accepts. Automaton has 1284 states and 1669 transitions. Word has length 82 [2019-10-22 09:00:36,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:36,080 INFO L462 AbstractCegarLoop]: Abstraction has 1284 states and 1669 transitions. [2019-10-22 09:00:36,080 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 09:00:36,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1284 states and 1669 transitions. [2019-10-22 09:00:36,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-10-22 09:00:36,081 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:36,082 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:36,082 INFO L410 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:00:36,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:36,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1869916981, now seen corresponding path program 1 times [2019-10-22 09:00:36,082 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:36,082 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523999336] [2019-10-22 09:00:36,083 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:36,083 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:36,083 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:36,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:36,209 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2019-10-22 09:00:36,209 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523999336] [2019-10-22 09:00:36,209 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:36,212 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-22 09:00:36,212 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609998073] [2019-10-22 09:00:36,213 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 09:00:36,213 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:36,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 09:00:36,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-10-22 09:00:36,213 INFO L87 Difference]: Start difference. First operand 1284 states and 1669 transitions. Second operand 9 states. [2019-10-22 09:00:36,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:36,824 INFO L93 Difference]: Finished difference Result 2347 states and 3046 transitions. [2019-10-22 09:00:36,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 09:00:36,825 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 84 [2019-10-22 09:00:36,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:36,827 INFO L225 Difference]: With dead ends: 2347 [2019-10-22 09:00:36,828 INFO L226 Difference]: Without dead ends: 1084 [2019-10-22 09:00:36,829 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2019-10-22 09:00:36,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2019-10-22 09:00:36,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 943. [2019-10-22 09:00:36,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 943 states. [2019-10-22 09:00:36,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1219 transitions. [2019-10-22 09:00:36,852 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1219 transitions. Word has length 84 [2019-10-22 09:00:36,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:36,853 INFO L462 AbstractCegarLoop]: Abstraction has 943 states and 1219 transitions. [2019-10-22 09:00:36,853 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 09:00:36,853 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1219 transitions. [2019-10-22 09:00:36,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2019-10-22 09:00:36,855 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:36,855 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:36,855 INFO L410 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:00:36,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:36,856 INFO L82 PathProgramCache]: Analyzing trace with hash 344699391, now seen corresponding path program 1 times [2019-10-22 09:00:36,856 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:36,856 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925268426] [2019-10-22 09:00:36,856 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:36,856 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:36,856 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:36,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:37,099 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 56 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-22 09:00:37,099 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925268426] [2019-10-22 09:00:37,099 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853927967] [2019-10-22 09:00:37,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4044ca2-21ea-46fa-bbd7-6a0dfe2b4c61/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 [2019-10-22 09:00:37,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:37,168 INFO L256 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 15 conjunts are in the unsatisfiable core [2019-10-22 09:00:37,170 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:37,219 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 56 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-22 09:00:37,219 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 09:00:37,220 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2019-10-22 09:00:37,220 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211568860] [2019-10-22 09:00:37,220 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-22 09:00:37,220 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:37,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-22 09:00:37,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-10-22 09:00:37,221 INFO L87 Difference]: Start difference. First operand 943 states and 1219 transitions. Second operand 11 states. [2019-10-22 09:00:37,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:37,435 INFO L93 Difference]: Finished difference Result 1321 states and 1624 transitions. [2019-10-22 09:00:37,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:00:37,435 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 90 [2019-10-22 09:00:37,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:37,438 INFO L225 Difference]: With dead ends: 1321 [2019-10-22 09:00:37,438 INFO L226 Difference]: Without dead ends: 1123 [2019-10-22 09:00:37,439 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2019-10-22 09:00:37,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2019-10-22 09:00:37,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 841. [2019-10-22 09:00:37,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 841 states. [2019-10-22 09:00:37,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1086 transitions. [2019-10-22 09:00:37,462 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1086 transitions. Word has length 90 [2019-10-22 09:00:37,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:37,463 INFO L462 AbstractCegarLoop]: Abstraction has 841 states and 1086 transitions. [2019-10-22 09:00:37,463 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-22 09:00:37,463 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1086 transitions. [2019-10-22 09:00:37,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2019-10-22 09:00:37,465 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:37,466 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:37,666 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:00:37,666 INFO L410 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:00:37,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:37,667 INFO L82 PathProgramCache]: Analyzing trace with hash -1999362949, now seen corresponding path program 2 times [2019-10-22 09:00:37,667 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:37,667 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809647239] [2019-10-22 09:00:37,667 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:37,667 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:37,667 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:37,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:37,792 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-22 09:00:37,792 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809647239] [2019-10-22 09:00:37,792 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912991820] [2019-10-22 09:00:37,793 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4044ca2-21ea-46fa-bbd7-6a0dfe2b4c61/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 [2019-10-22 09:00:37,861 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-22 09:00:37,861 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-22 09:00:37,862 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 22 conjunts are in the unsatisfiable core [2019-10-22 09:00:37,864 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:37,982 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 44 proven. 28 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-22 09:00:37,983 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 09:00:37,983 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2019-10-22 09:00:37,983 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776122080] [2019-10-22 09:00:37,984 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-22 09:00:37,984 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:37,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-22 09:00:37,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2019-10-22 09:00:37,984 INFO L87 Difference]: Start difference. First operand 841 states and 1086 transitions. Second operand 12 states. [2019-10-22 09:00:38,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:38,627 INFO L93 Difference]: Finished difference Result 3051 states and 3643 transitions. [2019-10-22 09:00:38,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-22 09:00:38,627 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 90 [2019-10-22 09:00:38,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:38,633 INFO L225 Difference]: With dead ends: 3051 [2019-10-22 09:00:38,634 INFO L226 Difference]: Without dead ends: 2647 [2019-10-22 09:00:38,635 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 83 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2019-10-22 09:00:38,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2647 states. [2019-10-22 09:00:38,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2647 to 742. [2019-10-22 09:00:38,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2019-10-22 09:00:38,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 964 transitions. [2019-10-22 09:00:38,671 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 964 transitions. Word has length 90 [2019-10-22 09:00:38,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:38,671 INFO L462 AbstractCegarLoop]: Abstraction has 742 states and 964 transitions. [2019-10-22 09:00:38,671 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-22 09:00:38,671 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 964 transitions. [2019-10-22 09:00:38,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-22 09:00:38,672 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:38,672 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:38,873 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:00:38,873 INFO L410 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:00:38,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:38,873 INFO L82 PathProgramCache]: Analyzing trace with hash 114949769, now seen corresponding path program 1 times [2019-10-22 09:00:38,874 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:38,874 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325698093] [2019-10-22 09:00:38,874 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:38,874 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:38,874 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:38,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:39,059 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 67 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-22 09:00:39,059 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325698093] [2019-10-22 09:00:39,059 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166318735] [2019-10-22 09:00:39,059 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4044ca2-21ea-46fa-bbd7-6a0dfe2b4c61/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 [2019-10-22 09:00:39,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:39,114 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 22 conjunts are in the unsatisfiable core [2019-10-22 09:00:39,116 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:39,182 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 24 proven. 35 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-10-22 09:00:39,183 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 09:00:39,183 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 11 [2019-10-22 09:00:39,183 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089682197] [2019-10-22 09:00:39,183 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-22 09:00:39,183 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:39,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-22 09:00:39,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2019-10-22 09:00:39,184 INFO L87 Difference]: Start difference. First operand 742 states and 964 transitions. Second operand 12 states. [2019-10-22 09:00:39,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:39,943 INFO L93 Difference]: Finished difference Result 2031 states and 2503 transitions. [2019-10-22 09:00:39,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-22 09:00:39,948 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 94 [2019-10-22 09:00:39,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:39,950 INFO L225 Difference]: With dead ends: 2031 [2019-10-22 09:00:39,950 INFO L226 Difference]: Without dead ends: 747 [2019-10-22 09:00:39,953 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=347, Unknown=0, NotChecked=0, Total=462 [2019-10-22 09:00:39,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2019-10-22 09:00:39,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 244. [2019-10-22 09:00:39,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2019-10-22 09:00:39,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 320 transitions. [2019-10-22 09:00:39,965 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 320 transitions. Word has length 94 [2019-10-22 09:00:39,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:39,965 INFO L462 AbstractCegarLoop]: Abstraction has 244 states and 320 transitions. [2019-10-22 09:00:39,965 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-22 09:00:39,965 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 320 transitions. [2019-10-22 09:00:39,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-10-22 09:00:39,966 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:39,966 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:40,167 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:00:40,167 INFO L410 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:00:40,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:40,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1499605514, now seen corresponding path program 1 times [2019-10-22 09:00:40,168 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:40,168 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930688357] [2019-10-22 09:00:40,168 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:40,168 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:40,168 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:40,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:40,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:40,353 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:40,353 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 09:00:40,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:00:40 BoogieIcfgContainer [2019-10-22 09:00:40,405 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:00:40,405 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:00:40,405 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:00:40,406 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:00:40,406 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:26" (3/4) ... [2019-10-22 09:00:40,410 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 09:00:40,410 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:00:40,413 INFO L168 Benchmark]: Toolchain (without parser) took 15120.32 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 345.5 MB). Free memory was 944.7 MB in the beginning and 967.0 MB in the end (delta: -22.3 MB). Peak memory consumption was 323.2 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:40,414 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:40,415 INFO L168 Benchmark]: CACSL2BoogieTranslator took 415.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -196.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:40,415 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:40,415 INFO L168 Benchmark]: Boogie Preprocessor took 53.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:40,418 INFO L168 Benchmark]: RCFGBuilder took 575.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.1 MB). Peak memory consumption was 35.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:40,418 INFO L168 Benchmark]: TraceAbstraction took 14012.00 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 196.1 MB). Free memory was 1.1 GB in the beginning and 977.3 MB in the end (delta: 119.8 MB). Peak memory consumption was 315.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:40,418 INFO L168 Benchmark]: Witness Printer took 4.83 ms. Allocated memory is still 1.4 GB. Free memory is still 967.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:40,420 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 415.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -196.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 575.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.1 MB). Peak memory consumption was 35.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 14012.00 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 196.1 MB). Free memory was 1.1 GB in the beginning and 977.3 MB in the end (delta: 119.8 MB). Peak memory consumption was 315.9 MB. Max. memory is 11.5 GB. * Witness Printer took 4.83 ms. Allocated memory is still 1.4 GB. Free memory is still 967.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 97]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseAnd at line 77. Possible FailurePath: [L105] unsigned int a, b, r; [L107] b = __VERIFIER_nondet_uint() [L109] a = 234770789 [L23] unsigned char a0, a1, a2, a3; [L24] unsigned char b0, b1, b2, b3; [L25] unsigned char r0, r1, r2, r3; [L26] unsigned short carry; [L27] unsigned short partial_sum; [L28] unsigned int r; [L29] unsigned char i; [L30] unsigned char na, nb; [L31] a0 = a [L32] a1 = a >> 8 [L33] a2 = a >> 16U [L34] a3 = a >> 24U [L35] b0 = b [L36] b1 = b >> 8U [L37] b2 = b >> 16U [L38] b3 = b >> 24U [L39] na = (unsigned char)4 [L40] COND FALSE !(a3 == (unsigned char)0) [L49] nb = (unsigned char)4 [L50] COND FALSE !(b3 == (unsigned char)0) [L59] carry = (unsigned short)0 [L60] i = (unsigned char)0 [L61] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L62] partial_sum = carry [L63] carry = (unsigned short)0 [L64] COND TRUE i < na [L65] COND TRUE i == (unsigned char)0 [L65] EXPR partial_sum + a0 [L65] partial_sum = partial_sum + a0 [L66] COND FALSE !(i == (unsigned char)1) [L67] COND FALSE !(i == (unsigned char)2) [L68] COND FALSE !(i == (unsigned char)3) [L70] COND TRUE i < nb [L71] COND TRUE i == (unsigned char)0 [L71] EXPR partial_sum + b0 [L71] partial_sum = partial_sum + b0 [L72] COND FALSE !(i == (unsigned char)1) [L73] COND FALSE !(i == (unsigned char)2) [L74] COND FALSE !(i == (unsigned char)3) [L76] COND TRUE partial_sum > ((unsigned char)255) [L77] partial_sum = partial_sum & ((unsigned char)255) [L78] carry = (unsigned short)1 [L80] COND TRUE i == (unsigned char)0 [L80] r0 = (unsigned char)partial_sum [L81] COND FALSE !(i == (unsigned char)1) [L82] COND FALSE !(i == (unsigned char)2) [L83] COND FALSE !(i == (unsigned char)3) [L85] EXPR i + (unsigned char)1 [L85] i = i + (unsigned char)1 [L61] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L62] partial_sum = carry [L63] carry = (unsigned short)0 [L64] COND TRUE i < na [L65] COND FALSE !(i == (unsigned char)0) [L66] COND TRUE i == (unsigned char)1 [L66] EXPR partial_sum + a1 [L66] partial_sum = partial_sum + a1 [L67] COND FALSE !(i == (unsigned char)2) [L68] COND FALSE !(i == (unsigned char)3) [L70] COND TRUE i < nb [L71] COND FALSE !(i == (unsigned char)0) [L72] COND TRUE i == (unsigned char)1 [L72] EXPR partial_sum + b1 [L72] partial_sum = partial_sum + b1 [L73] COND FALSE !(i == (unsigned char)2) [L74] COND FALSE !(i == (unsigned char)3) [L76] COND TRUE partial_sum > ((unsigned char)255) [L77] partial_sum = partial_sum & ((unsigned char)255) [L78] carry = (unsigned short)1 [L80] COND FALSE !(i == (unsigned char)0) [L81] COND TRUE i == (unsigned char)1 [L81] r1 = (unsigned char)partial_sum [L82] COND FALSE !(i == (unsigned char)2) [L83] COND FALSE !(i == (unsigned char)3) [L85] EXPR i + (unsigned char)1 [L85] i = i + (unsigned char)1 [L61] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L62] partial_sum = carry [L63] carry = (unsigned short)0 [L64] COND TRUE i < na [L65] COND FALSE !(i == (unsigned char)0) [L66] COND FALSE !(i == (unsigned char)1) [L67] COND TRUE i == (unsigned char)2 [L67] EXPR partial_sum + a2 [L67] partial_sum = partial_sum + a2 [L68] COND FALSE !(i == (unsigned char)3) [L70] COND TRUE i < nb [L71] COND FALSE !(i == (unsigned char)0) [L72] COND FALSE !(i == (unsigned char)1) [L73] COND TRUE i == (unsigned char)2 [L73] EXPR partial_sum + b2 [L73] partial_sum = partial_sum + b2 [L74] COND FALSE !(i == (unsigned char)3) [L76] COND TRUE partial_sum > ((unsigned char)255) [L77] partial_sum = partial_sum & ((unsigned char)255) [L78] carry = (unsigned short)1 [L80] COND FALSE !(i == (unsigned char)0) [L81] COND FALSE !(i == (unsigned char)1) [L82] COND TRUE i == (unsigned char)2 [L82] r2 = (unsigned char)partial_sum [L83] COND FALSE !(i == (unsigned char)3) [L85] EXPR i + (unsigned char)1 [L85] i = i + (unsigned char)1 [L61] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L62] partial_sum = carry [L63] carry = (unsigned short)0 [L64] COND TRUE i < na [L65] COND FALSE !(i == (unsigned char)0) [L66] COND FALSE !(i == (unsigned char)1) [L67] COND FALSE !(i == (unsigned char)2) [L68] COND TRUE i == (unsigned char)3 [L68] EXPR partial_sum + a3 [L68] partial_sum = partial_sum + a3 [L70] COND TRUE i < nb [L71] COND FALSE !(i == (unsigned char)0) [L72] COND FALSE !(i == (unsigned char)1) [L73] COND FALSE !(i == (unsigned char)2) [L74] COND TRUE i == (unsigned char)3 [L74] EXPR partial_sum + b3 [L74] partial_sum = partial_sum + b3 [L76] COND FALSE !(partial_sum > ((unsigned char)255)) [L80] COND FALSE !(i == (unsigned char)0) [L81] COND FALSE !(i == (unsigned char)1) [L82] COND FALSE !(i == (unsigned char)2) [L83] COND TRUE i == (unsigned char)3 [L83] r3 = (unsigned char)partial_sum [L85] EXPR i + (unsigned char)1 [L85] i = i + (unsigned char)1 [L61] COND FALSE !((i < na) || (i < nb) || (carry != (unsigned short)0)) [L88] COND FALSE !(i < (unsigned char)4) [L97] r1 << 8U [L97] r2 << 16U [L97] r3 << 24U - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 113 locations, 38 error locations. Result: UNSAFE, OverallTime: 13.9s, OverallIterations: 23, TraceHistogramMax: 4, AutomataDifference: 7.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 2156 SDtfs, 4074 SDslu, 5007 SDs, 0 SdLazy, 5605 SolverSat, 432 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 784 GetRequests, 600 SyntacticMatches, 18 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1284occurred in iteration=18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 22 MinimizatonAttempts, 4795 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 1897 NumberOfCodeBlocks, 1897 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 1766 ConstructedInterpolants, 19 QuantifiedInterpolants, 578378 SizeOfPredicates, 27 NumberOfNonLiveVariables, 1334 ConjunctsInSsa, 95 ConjunctsInUnsatCore, 31 InterpolantComputations, 16 PerfectInterpolantSequences, 1293/1483 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...