./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b0a853f0131530f88013a3fcfdf4f133f41c0569 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 14:14:31,937 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:14:31,939 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:14:31,949 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:14:31,949 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:14:31,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:14:31,950 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:14:31,952 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:14:31,953 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:14:31,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:14:31,954 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:14:31,955 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:14:31,955 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:14:31,956 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:14:31,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:14:31,957 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:14:31,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:14:31,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:14:31,959 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:14:31,961 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:14:31,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:14:31,963 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:14:31,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:14:31,964 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:14:31,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:14:31,966 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:14:31,966 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:14:31,967 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:14:31,967 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:14:31,968 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:14:31,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:14:31,968 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:14:31,969 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:14:31,969 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:14:31,970 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:14:31,970 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:14:31,971 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:14:31,971 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:14:31,971 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:14:31,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:14:31,973 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:14:31,973 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-12-07 14:14:31,985 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:14:31,985 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:14:31,986 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 14:14:31,986 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 14:14:31,986 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 14:14:31,986 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:14:31,987 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 14:14:31,987 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:14:31,987 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:14:31,987 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 14:14:31,987 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 14:14:31,987 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 14:14:31,987 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-12-07 14:14:31,988 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:14:31,988 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:14:31,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 14:14:31,988 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:14:31,988 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:14:31,988 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 14:14:31,988 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 14:14:31,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:14:31,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:14:31,989 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 14:14:31,989 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 14:14:31,989 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 14:14:31,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 14:14:31,989 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 14:14:31,990 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:14:31,990 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0a853f0131530f88013a3fcfdf4f133f41c0569 [2019-12-07 14:14:32,098 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:14:32,105 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:14:32,108 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:14:32,109 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:14:32,109 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:14:32,109 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c [2019-12-07 14:14:32,145 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/data/0972f2bbb/41846d7813a64ab4b3051dbc1926734a/FLAG2102b44c5 [2019-12-07 14:14:32,481 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:14:32,481 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c [2019-12-07 14:14:32,485 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/data/0972f2bbb/41846d7813a64ab4b3051dbc1926734a/FLAG2102b44c5 [2019-12-07 14:14:32,493 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/data/0972f2bbb/41846d7813a64ab4b3051dbc1926734a [2019-12-07 14:14:32,495 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:14:32,495 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:14:32,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:14:32,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:14:32,498 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:14:32,499 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:14:32" (1/1) ... [2019-12-07 14:14:32,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a8ebb28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:14:32, skipping insertion in model container [2019-12-07 14:14:32,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:14:32" (1/1) ... [2019-12-07 14:14:32,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:14:32,515 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:14:32,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:14:32,615 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:14:32,661 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:14:32,670 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:14:32,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:14:32 WrapperNode [2019-12-07 14:14:32,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:14:32,671 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:14:32,671 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:14:32,671 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:14:32,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:14:32" (1/1) ... [2019-12-07 14:14:32,680 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:14:32" (1/1) ... [2019-12-07 14:14:32,692 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:14:32,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:14:32,692 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:14:32,692 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:14:32,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:14:32" (1/1) ... [2019-12-07 14:14:32,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:14:32" (1/1) ... [2019-12-07 14:14:32,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:14:32" (1/1) ... [2019-12-07 14:14:32,699 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:14:32" (1/1) ... [2019-12-07 14:14:32,700 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:14:32" (1/1) ... [2019-12-07 14:14:32,703 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:14:32" (1/1) ... [2019-12-07 14:14:32,704 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:14:32" (1/1) ... [2019-12-07 14:14:32,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:14:32,705 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:14:32,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:14:32,705 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:14:32,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:14:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/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 [2019-12-07 14:14:32,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:14:32,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:14:32,868 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:14:32,868 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 14:14:32,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:14:32 BoogieIcfgContainer [2019-12-07 14:14:32,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:14:32,869 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 14:14:32,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 14:14:32,871 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 14:14:32,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 02:14:32" (1/3) ... [2019-12-07 14:14:32,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3acc598b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:14:32, skipping insertion in model container [2019-12-07 14:14:32,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:14:32" (2/3) ... [2019-12-07 14:14:32,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3acc598b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:14:32, skipping insertion in model container [2019-12-07 14:14:32,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:14:32" (3/3) ... [2019-12-07 14:14:32,874 INFO L109 eAbstractionObserver]: Analyzing ICFG ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c [2019-12-07 14:14:32,880 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 14:14:32,884 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2019-12-07 14:14:32,891 INFO L249 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2019-12-07 14:14:32,906 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 14:14:32,906 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 14:14:32,906 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 14:14:32,906 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:14:32,906 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:14:32,906 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 14:14:32,906 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:14:32,907 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 14:14:32,917 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2019-12-07 14:14:32,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-07 14:14:32,921 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:32,921 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-07 14:14:32,922 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:32,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:32,925 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-12-07 14:14:32,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:32,931 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384842906] [2019-12-07 14:14:32,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:32,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:33,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:33,017 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384842906] [2019-12-07 14:14:33,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:14:33,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 14:14:33,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519889388] [2019-12-07 14:14:33,021 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:14:33,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:33,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:14:33,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:14:33,031 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 3 states. [2019-12-07 14:14:33,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:33,064 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2019-12-07 14:14:33,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:14:33,065 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-12-07 14:14:33,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:33,072 INFO L225 Difference]: With dead ends: 43 [2019-12-07 14:14:33,072 INFO L226 Difference]: Without dead ends: 30 [2019-12-07 14:14:33,074 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:14:33,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-12-07 14:14:33,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2019-12-07 14:14:33,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-12-07 14:14:33,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2019-12-07 14:14:33,097 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 3 [2019-12-07 14:14:33,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:33,097 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2019-12-07 14:14:33,097 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:14:33,097 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2019-12-07 14:14:33,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 14:14:33,098 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:33,098 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 14:14:33,098 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:33,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:33,098 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2019-12-07 14:14:33,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:33,099 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842380214] [2019-12-07 14:14:33,099 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:33,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:33,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:33,111 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842380214] [2019-12-07 14:14:33,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:14:33,112 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 14:14:33,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034145474] [2019-12-07 14:14:33,113 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:14:33,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:33,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:14:33,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:14:33,114 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand 3 states. [2019-12-07 14:14:33,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:33,125 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2019-12-07 14:14:33,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:14:33,126 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-07 14:14:33,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:33,127 INFO L225 Difference]: With dead ends: 29 [2019-12-07 14:14:33,127 INFO L226 Difference]: Without dead ends: 28 [2019-12-07 14:14:33,128 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:14:33,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-07 14:14:33,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-07 14:14:33,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-07 14:14:33,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2019-12-07 14:14:33,133 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 4 [2019-12-07 14:14:33,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:33,133 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2019-12-07 14:14:33,133 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:14:33,134 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2019-12-07 14:14:33,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 14:14:33,134 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:33,134 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:14:33,134 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:33,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:33,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1366845466, now seen corresponding path program 1 times [2019-12-07 14:14:33,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:33,135 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480067907] [2019-12-07 14:14:33,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:33,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:33,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:33,155 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480067907] [2019-12-07 14:14:33,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:14:33,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 14:14:33,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608849429] [2019-12-07 14:14:33,156 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:14:33,156 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:33,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:14:33,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:14:33,157 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand 3 states. [2019-12-07 14:14:33,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:33,178 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2019-12-07 14:14:33,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:14:33,178 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-07 14:14:33,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:33,180 INFO L225 Difference]: With dead ends: 51 [2019-12-07 14:14:33,180 INFO L226 Difference]: Without dead ends: 49 [2019-12-07 14:14:33,180 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:14:33,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-12-07 14:14:33,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2019-12-07 14:14:33,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-12-07 14:14:33,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 59 transitions. [2019-12-07 14:14:33,185 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 59 transitions. Word has length 7 [2019-12-07 14:14:33,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:33,186 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 59 transitions. [2019-12-07 14:14:33,186 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:14:33,186 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 59 transitions. [2019-12-07 14:14:33,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 14:14:33,186 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:33,186 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-12-07 14:14:33,186 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:33,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:33,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1366808307, now seen corresponding path program 1 times [2019-12-07 14:14:33,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:33,187 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265621575] [2019-12-07 14:14:33,187 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:33,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:33,206 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:33,206 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265621575] [2019-12-07 14:14:33,206 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140522262] [2019-12-07 14:14:33,206 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/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 [2019-12-07 14:14:33,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:33,230 INFO L264 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 14:14:33,234 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:33,251 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:33,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:33,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-12-07 14:14:33,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602628485] [2019-12-07 14:14:33,252 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:14:33,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:33,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:14:33,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:14:33,252 INFO L87 Difference]: Start difference. First operand 43 states and 59 transitions. Second operand 4 states. [2019-12-07 14:14:33,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:33,269 INFO L93 Difference]: Finished difference Result 70 states and 92 transitions. [2019-12-07 14:14:33,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 14:14:33,269 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-12-07 14:14:33,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:33,270 INFO L225 Difference]: With dead ends: 70 [2019-12-07 14:14:33,270 INFO L226 Difference]: Without dead ends: 69 [2019-12-07 14:14:33,271 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:14:33,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-12-07 14:14:33,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 61. [2019-12-07 14:14:33,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-12-07 14:14:33,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 88 transitions. [2019-12-07 14:14:33,277 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 88 transitions. Word has length 7 [2019-12-07 14:14:33,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:33,277 INFO L462 AbstractCegarLoop]: Abstraction has 61 states and 88 transitions. [2019-12-07 14:14:33,277 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:14:33,277 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 88 transitions. [2019-12-07 14:14:33,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 14:14:33,277 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:33,277 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:14:33,478 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:33,479 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:33,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:33,480 INFO L82 PathProgramCache]: Analyzing trace with hash 577463568, now seen corresponding path program 1 times [2019-12-07 14:14:33,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:33,481 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976174342] [2019-12-07 14:14:33,481 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:33,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:33,524 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976174342] [2019-12-07 14:14:33,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:14:33,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 14:14:33,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812734771] [2019-12-07 14:14:33,525 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:14:33,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:33,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:14:33,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:14:33,526 INFO L87 Difference]: Start difference. First operand 61 states and 88 transitions. Second operand 3 states. [2019-12-07 14:14:33,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:33,548 INFO L93 Difference]: Finished difference Result 101 states and 146 transitions. [2019-12-07 14:14:33,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:14:33,548 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-07 14:14:33,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:33,549 INFO L225 Difference]: With dead ends: 101 [2019-12-07 14:14:33,549 INFO L226 Difference]: Without dead ends: 99 [2019-12-07 14:14:33,550 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:14:33,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-12-07 14:14:33,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 94. [2019-12-07 14:14:33,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-12-07 14:14:33,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 141 transitions. [2019-12-07 14:14:33,557 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 141 transitions. Word has length 8 [2019-12-07 14:14:33,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:33,557 INFO L462 AbstractCegarLoop]: Abstraction has 94 states and 141 transitions. [2019-12-07 14:14:33,557 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:14:33,557 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 141 transitions. [2019-12-07 14:14:33,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 14:14:33,558 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:33,558 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:14:33,558 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:33,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:33,558 INFO L82 PathProgramCache]: Analyzing trace with hash 721693167, now seen corresponding path program 1 times [2019-12-07 14:14:33,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:33,559 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120393849] [2019-12-07 14:14:33,559 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:33,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:33,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:33,574 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120393849] [2019-12-07 14:14:33,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:14:33,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 14:14:33,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522305490] [2019-12-07 14:14:33,574 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:14:33,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:33,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:14:33,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:14:33,575 INFO L87 Difference]: Start difference. First operand 94 states and 141 transitions. Second operand 3 states. [2019-12-07 14:14:33,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:33,595 INFO L93 Difference]: Finished difference Result 165 states and 252 transitions. [2019-12-07 14:14:33,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:14:33,595 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-07 14:14:33,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:33,597 INFO L225 Difference]: With dead ends: 165 [2019-12-07 14:14:33,597 INFO L226 Difference]: Without dead ends: 163 [2019-12-07 14:14:33,597 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:14:33,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2019-12-07 14:14:33,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 154. [2019-12-07 14:14:33,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-12-07 14:14:33,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 234 transitions. [2019-12-07 14:14:33,607 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 234 transitions. Word has length 9 [2019-12-07 14:14:33,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:33,607 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 234 transitions. [2019-12-07 14:14:33,607 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:14:33,608 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 234 transitions. [2019-12-07 14:14:33,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 14:14:33,608 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:33,608 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:14:33,608 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:33,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:33,608 INFO L82 PathProgramCache]: Analyzing trace with hash 897651769, now seen corresponding path program 1 times [2019-12-07 14:14:33,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:33,609 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002946954] [2019-12-07 14:14:33,609 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:33,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:33,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:33,622 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002946954] [2019-12-07 14:14:33,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:14:33,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 14:14:33,622 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66448187] [2019-12-07 14:14:33,622 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:14:33,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:33,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:14:33,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:14:33,623 INFO L87 Difference]: Start difference. First operand 154 states and 234 transitions. Second operand 3 states. [2019-12-07 14:14:33,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:33,644 INFO L93 Difference]: Finished difference Result 283 states and 438 transitions. [2019-12-07 14:14:33,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:14:33,645 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-07 14:14:33,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:33,646 INFO L225 Difference]: With dead ends: 283 [2019-12-07 14:14:33,646 INFO L226 Difference]: Without dead ends: 281 [2019-12-07 14:14:33,647 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:14:33,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2019-12-07 14:14:33,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 276. [2019-12-07 14:14:33,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2019-12-07 14:14:33,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 424 transitions. [2019-12-07 14:14:33,661 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 424 transitions. Word has length 10 [2019-12-07 14:14:33,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:33,661 INFO L462 AbstractCegarLoop]: Abstraction has 276 states and 424 transitions. [2019-12-07 14:14:33,661 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:14:33,661 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 424 transitions. [2019-12-07 14:14:33,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 14:14:33,662 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:33,662 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1] [2019-12-07 14:14:33,662 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:33,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:33,662 INFO L82 PathProgramCache]: Analyzing trace with hash 1830298297, now seen corresponding path program 2 times [2019-12-07 14:14:33,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:33,662 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042704570] [2019-12-07 14:14:33,663 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:33,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:33,680 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-12-07 14:14:33,681 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042704570] [2019-12-07 14:14:33,681 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947738491] [2019-12-07 14:14:33,681 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/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 [2019-12-07 14:14:33,699 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-12-07 14:14:33,700 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 14:14:33,700 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 14:14:33,701 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:33,702 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-12-07 14:14:33,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:33,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-12-07 14:14:33,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134092892] [2019-12-07 14:14:33,703 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:14:33,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:33,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:14:33,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:14:33,704 INFO L87 Difference]: Start difference. First operand 276 states and 424 transitions. Second operand 4 states. [2019-12-07 14:14:33,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:33,717 INFO L93 Difference]: Finished difference Result 276 states and 424 transitions. [2019-12-07 14:14:33,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 14:14:33,717 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-07 14:14:33,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:33,718 INFO L225 Difference]: With dead ends: 276 [2019-12-07 14:14:33,718 INFO L226 Difference]: Without dead ends: 275 [2019-12-07 14:14:33,719 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:14:33,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2019-12-07 14:14:33,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 249. [2019-12-07 14:14:33,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2019-12-07 14:14:33,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 377 transitions. [2019-12-07 14:14:33,727 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 377 transitions. Word has length 11 [2019-12-07 14:14:33,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:33,727 INFO L462 AbstractCegarLoop]: Abstraction has 249 states and 377 transitions. [2019-12-07 14:14:33,727 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:14:33,728 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 377 transitions. [2019-12-07 14:14:33,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 14:14:33,728 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:33,728 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1] [2019-12-07 14:14:33,928 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:33,929 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:33,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:33,930 INFO L82 PathProgramCache]: Analyzing trace with hash -795491305, now seen corresponding path program 1 times [2019-12-07 14:14:33,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:33,931 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603503025] [2019-12-07 14:14:33,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:33,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:34,002 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:34,003 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603503025] [2019-12-07 14:14:34,004 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342343806] [2019-12-07 14:14:34,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/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 [2019-12-07 14:14:34,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:34,059 INFO L264 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 14:14:34,061 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:34,066 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:34,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:34,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-12-07 14:14:34,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100684344] [2019-12-07 14:14:34,068 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:14:34,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:34,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:14:34,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:14:34,069 INFO L87 Difference]: Start difference. First operand 249 states and 377 transitions. Second operand 4 states. [2019-12-07 14:14:34,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:34,109 INFO L93 Difference]: Finished difference Result 449 states and 688 transitions. [2019-12-07 14:14:34,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 14:14:34,109 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-12-07 14:14:34,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:34,112 INFO L225 Difference]: With dead ends: 449 [2019-12-07 14:14:34,112 INFO L226 Difference]: Without dead ends: 447 [2019-12-07 14:14:34,112 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:14:34,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2019-12-07 14:14:34,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 357. [2019-12-07 14:14:34,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 357 states. [2019-12-07 14:14:34,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 543 transitions. [2019-12-07 14:14:34,121 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 543 transitions. Word has length 14 [2019-12-07 14:14:34,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:34,121 INFO L462 AbstractCegarLoop]: Abstraction has 357 states and 543 transitions. [2019-12-07 14:14:34,121 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:14:34,121 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 543 transitions. [2019-12-07 14:14:34,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 14:14:34,122 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:34,122 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:14:34,322 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:34,323 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:34,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:34,324 INFO L82 PathProgramCache]: Analyzing trace with hash 592160614, now seen corresponding path program 1 times [2019-12-07 14:14:34,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:34,325 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062758179] [2019-12-07 14:14:34,325 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:34,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:34,397 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:34,398 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062758179] [2019-12-07 14:14:34,399 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956073819] [2019-12-07 14:14:34,400 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/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 [2019-12-07 14:14:34,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:34,457 INFO L264 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 14:14:34,458 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:34,466 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:34,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 14:14:34,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 4 [2019-12-07 14:14:34,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546170414] [2019-12-07 14:14:34,468 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:14:34,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:34,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:14:34,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:14:34,469 INFO L87 Difference]: Start difference. First operand 357 states and 543 transitions. Second operand 3 states. [2019-12-07 14:14:34,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:34,483 INFO L93 Difference]: Finished difference Result 357 states and 543 transitions. [2019-12-07 14:14:34,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:14:34,483 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-12-07 14:14:34,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:34,485 INFO L225 Difference]: With dead ends: 357 [2019-12-07 14:14:34,485 INFO L226 Difference]: Without dead ends: 356 [2019-12-07 14:14:34,486 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:14:34,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2019-12-07 14:14:34,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2019-12-07 14:14:34,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2019-12-07 14:14:34,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 535 transitions. [2019-12-07 14:14:34,495 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 535 transitions. Word has length 16 [2019-12-07 14:14:34,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:34,495 INFO L462 AbstractCegarLoop]: Abstraction has 356 states and 535 transitions. [2019-12-07 14:14:34,495 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:14:34,496 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 535 transitions. [2019-12-07 14:14:34,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 14:14:34,496 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:34,496 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2019-12-07 14:14:34,697 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:34,698 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:34,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:34,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1177295603, now seen corresponding path program 1 times [2019-12-07 14:14:34,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:34,700 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394609807] [2019-12-07 14:14:34,701 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:34,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:34,766 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:34,767 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394609807] [2019-12-07 14:14:34,767 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307241080] [2019-12-07 14:14:34,768 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/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 [2019-12-07 14:14:34,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:34,837 INFO L264 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 14:14:34,839 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:34,843 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:34,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:34,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-12-07 14:14:34,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214440938] [2019-12-07 14:14:34,845 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:14:34,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:34,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:14:34,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:14:34,846 INFO L87 Difference]: Start difference. First operand 356 states and 535 transitions. Second operand 4 states. [2019-12-07 14:14:34,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:34,896 INFO L93 Difference]: Finished difference Result 609 states and 919 transitions. [2019-12-07 14:14:34,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 14:14:34,897 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-12-07 14:14:34,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:34,903 INFO L225 Difference]: With dead ends: 609 [2019-12-07 14:14:34,903 INFO L226 Difference]: Without dead ends: 608 [2019-12-07 14:14:34,905 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:14:34,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2019-12-07 14:14:34,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 464. [2019-12-07 14:14:34,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2019-12-07 14:14:34,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 701 transitions. [2019-12-07 14:14:34,932 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 701 transitions. Word has length 17 [2019-12-07 14:14:34,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:34,933 INFO L462 AbstractCegarLoop]: Abstraction has 464 states and 701 transitions. [2019-12-07 14:14:34,933 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:14:34,933 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 701 transitions. [2019-12-07 14:14:34,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 14:14:34,935 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:34,935 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2019-12-07 14:14:35,136 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:35,137 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:35,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:35,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1222343671, now seen corresponding path program 1 times [2019-12-07 14:14:35,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:35,139 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690775052] [2019-12-07 14:14:35,140 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:35,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:35,208 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:35,209 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690775052] [2019-12-07 14:14:35,210 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161984090] [2019-12-07 14:14:35,210 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/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 [2019-12-07 14:14:35,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:35,264 INFO L264 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 14:14:35,265 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:35,269 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:35,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:35,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-12-07 14:14:35,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096812117] [2019-12-07 14:14:35,270 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:14:35,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:35,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:14:35,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:14:35,270 INFO L87 Difference]: Start difference. First operand 464 states and 701 transitions. Second operand 4 states. [2019-12-07 14:14:35,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:35,304 INFO L93 Difference]: Finished difference Result 834 states and 1284 transitions. [2019-12-07 14:14:35,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 14:14:35,304 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-12-07 14:14:35,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:35,308 INFO L225 Difference]: With dead ends: 834 [2019-12-07 14:14:35,308 INFO L226 Difference]: Without dead ends: 832 [2019-12-07 14:14:35,308 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:14:35,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2019-12-07 14:14:35,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 668. [2019-12-07 14:14:35,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 668 states. [2019-12-07 14:14:35,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 1007 transitions. [2019-12-07 14:14:35,324 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 1007 transitions. Word has length 18 [2019-12-07 14:14:35,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:35,324 INFO L462 AbstractCegarLoop]: Abstraction has 668 states and 1007 transitions. [2019-12-07 14:14:35,324 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:14:35,324 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 1007 transitions. [2019-12-07 14:14:35,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-07 14:14:35,325 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:35,325 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:14:35,525 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:35,526 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:35,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:35,526 INFO L82 PathProgramCache]: Analyzing trace with hash -668230362, now seen corresponding path program 1 times [2019-12-07 14:14:35,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:35,526 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044119164] [2019-12-07 14:14:35,526 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:35,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:35,543 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:35,543 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044119164] [2019-12-07 14:14:35,544 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159160848] [2019-12-07 14:14:35,544 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/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 [2019-12-07 14:14:35,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:35,564 INFO L264 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 14:14:35,565 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:35,572 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:35,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 14:14:35,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 4 [2019-12-07 14:14:35,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615147265] [2019-12-07 14:14:35,573 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:14:35,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:35,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:14:35,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:14:35,574 INFO L87 Difference]: Start difference. First operand 668 states and 1007 transitions. Second operand 3 states. [2019-12-07 14:14:35,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:35,593 INFO L93 Difference]: Finished difference Result 668 states and 1007 transitions. [2019-12-07 14:14:35,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:14:35,594 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-12-07 14:14:35,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:35,597 INFO L225 Difference]: With dead ends: 668 [2019-12-07 14:14:35,597 INFO L226 Difference]: Without dead ends: 667 [2019-12-07 14:14:35,598 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:14:35,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2019-12-07 14:14:35,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 667. [2019-12-07 14:14:35,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 667 states. [2019-12-07 14:14:35,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 991 transitions. [2019-12-07 14:14:35,612 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 991 transitions. Word has length 20 [2019-12-07 14:14:35,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:35,612 INFO L462 AbstractCegarLoop]: Abstraction has 667 states and 991 transitions. [2019-12-07 14:14:35,612 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:14:35,612 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 991 transitions. [2019-12-07 14:14:35,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-12-07 14:14:35,613 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:35,613 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1] [2019-12-07 14:14:35,813 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:35,814 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:35,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:35,814 INFO L82 PathProgramCache]: Analyzing trace with hash 2023206598, now seen corresponding path program 2 times [2019-12-07 14:14:35,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:35,814 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324719650] [2019-12-07 14:14:35,815 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:35,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:35,842 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:35,842 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324719650] [2019-12-07 14:14:35,843 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634865288] [2019-12-07 14:14:35,843 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/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 [2019-12-07 14:14:35,861 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 14:14:35,861 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 14:14:35,861 INFO L264 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 14:14:35,862 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:35,866 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:35,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:35,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2019-12-07 14:14:35,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72990202] [2019-12-07 14:14:35,867 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 14:14:35,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:35,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 14:14:35,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:14:35,867 INFO L87 Difference]: Start difference. First operand 667 states and 991 transitions. Second operand 5 states. [2019-12-07 14:14:35,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:35,910 INFO L93 Difference]: Finished difference Result 1152 states and 1729 transitions. [2019-12-07 14:14:35,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 14:14:35,910 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2019-12-07 14:14:35,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:35,915 INFO L225 Difference]: With dead ends: 1152 [2019-12-07 14:14:35,915 INFO L226 Difference]: Without dead ends: 1150 [2019-12-07 14:14:35,916 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:14:35,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2019-12-07 14:14:35,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 913. [2019-12-07 14:14:35,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 913 states. [2019-12-07 14:14:35,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1351 transitions. [2019-12-07 14:14:35,937 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1351 transitions. Word has length 21 [2019-12-07 14:14:35,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:35,937 INFO L462 AbstractCegarLoop]: Abstraction has 913 states and 1351 transitions. [2019-12-07 14:14:35,937 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 14:14:35,937 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1351 transitions. [2019-12-07 14:14:35,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-12-07 14:14:35,938 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:35,938 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2019-12-07 14:14:36,138 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:36,139 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:36,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:36,139 INFO L82 PathProgramCache]: Analyzing trace with hash 759881029, now seen corresponding path program 1 times [2019-12-07 14:14:36,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:36,140 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749958830] [2019-12-07 14:14:36,140 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:36,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:36,168 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:36,169 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749958830] [2019-12-07 14:14:36,169 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667430047] [2019-12-07 14:14:36,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/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 [2019-12-07 14:14:36,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:36,186 INFO L264 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 14:14:36,187 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:36,189 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:36,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:36,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-12-07 14:14:36,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989066235] [2019-12-07 14:14:36,189 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:14:36,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:36,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:14:36,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:14:36,190 INFO L87 Difference]: Start difference. First operand 913 states and 1351 transitions. Second operand 4 states. [2019-12-07 14:14:36,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:36,217 INFO L93 Difference]: Finished difference Result 1557 states and 2328 transitions. [2019-12-07 14:14:36,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 14:14:36,218 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2019-12-07 14:14:36,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:36,223 INFO L225 Difference]: With dead ends: 1557 [2019-12-07 14:14:36,223 INFO L226 Difference]: Without dead ends: 1556 [2019-12-07 14:14:36,224 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:14:36,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2019-12-07 14:14:36,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1193. [2019-12-07 14:14:36,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1193 states. [2019-12-07 14:14:36,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1768 transitions. [2019-12-07 14:14:36,245 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1768 transitions. Word has length 21 [2019-12-07 14:14:36,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:36,246 INFO L462 AbstractCegarLoop]: Abstraction has 1193 states and 1768 transitions. [2019-12-07 14:14:36,246 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:14:36,246 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1768 transitions. [2019-12-07 14:14:36,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 14:14:36,246 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:36,246 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1] [2019-12-07 14:14:36,447 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:36,447 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:36,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:36,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1092753757, now seen corresponding path program 2 times [2019-12-07 14:14:36,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:36,448 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673380235] [2019-12-07 14:14:36,448 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:36,469 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:36,469 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673380235] [2019-12-07 14:14:36,469 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768319525] [2019-12-07 14:14:36,469 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:36,488 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 14:14:36,488 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 14:14:36,489 INFO L264 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 14:14:36,490 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:36,492 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:36,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:36,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2019-12-07 14:14:36,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105200527] [2019-12-07 14:14:36,493 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 14:14:36,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:36,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 14:14:36,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:14:36,493 INFO L87 Difference]: Start difference. First operand 1193 states and 1768 transitions. Second operand 5 states. [2019-12-07 14:14:36,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:36,534 INFO L93 Difference]: Finished difference Result 1951 states and 2902 transitions. [2019-12-07 14:14:36,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 14:14:36,535 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-12-07 14:14:36,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:36,544 INFO L225 Difference]: With dead ends: 1951 [2019-12-07 14:14:36,544 INFO L226 Difference]: Without dead ends: 1950 [2019-12-07 14:14:36,546 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:14:36,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2019-12-07 14:14:36,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1429. [2019-12-07 14:14:36,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1429 states. [2019-12-07 14:14:36,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 2114 transitions. [2019-12-07 14:14:36,579 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 2114 transitions. Word has length 25 [2019-12-07 14:14:36,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:36,579 INFO L462 AbstractCegarLoop]: Abstraction has 1429 states and 2114 transitions. [2019-12-07 14:14:36,579 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 14:14:36,579 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 2114 transitions. [2019-12-07 14:14:36,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 14:14:36,580 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:36,580 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1] [2019-12-07 14:14:36,780 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:36,782 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:36,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:36,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1883170607, now seen corresponding path program 2 times [2019-12-07 14:14:36,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:36,783 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970214646] [2019-12-07 14:14:36,783 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:36,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:36,857 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:36,858 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970214646] [2019-12-07 14:14:36,858 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924043109] [2019-12-07 14:14:36,859 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:36,925 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 14:14:36,925 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 14:14:36,926 INFO L264 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 14:14:36,927 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:36,931 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:36,932 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:36,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2019-12-07 14:14:36,932 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807883867] [2019-12-07 14:14:36,933 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 14:14:36,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:36,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 14:14:36,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:14:36,933 INFO L87 Difference]: Start difference. First operand 1429 states and 2114 transitions. Second operand 5 states. [2019-12-07 14:14:36,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:36,978 INFO L93 Difference]: Finished difference Result 2462 states and 3693 transitions. [2019-12-07 14:14:36,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 14:14:36,978 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-12-07 14:14:36,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:36,990 INFO L225 Difference]: With dead ends: 2462 [2019-12-07 14:14:36,990 INFO L226 Difference]: Without dead ends: 2460 [2019-12-07 14:14:36,992 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:14:36,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2460 states. [2019-12-07 14:14:37,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2460 to 1959. [2019-12-07 14:14:37,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1959 states. [2019-12-07 14:14:37,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 2882 transitions. [2019-12-07 14:14:37,028 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 2882 transitions. Word has length 27 [2019-12-07 14:14:37,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:37,028 INFO L462 AbstractCegarLoop]: Abstraction has 1959 states and 2882 transitions. [2019-12-07 14:14:37,029 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 14:14:37,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 2882 transitions. [2019-12-07 14:14:37,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-07 14:14:37,029 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:37,029 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 1, 1] [2019-12-07 14:14:37,230 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:37,231 INFO L410 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:37,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:37,232 INFO L82 PathProgramCache]: Analyzing trace with hash -748146377, now seen corresponding path program 3 times [2019-12-07 14:14:37,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:37,233 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416525792] [2019-12-07 14:14:37,233 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:37,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:37,324 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:37,325 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416525792] [2019-12-07 14:14:37,325 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120703394] [2019-12-07 14:14:37,325 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:37,389 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-12-07 14:14:37,390 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 14:14:37,390 INFO L264 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 14:14:37,392 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:37,398 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:37,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:37,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-12-07 14:14:37,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180752998] [2019-12-07 14:14:37,400 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 14:14:37,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:37,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 14:14:37,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-12-07 14:14:37,401 INFO L87 Difference]: Start difference. First operand 1959 states and 2882 transitions. Second operand 6 states. [2019-12-07 14:14:37,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:37,457 INFO L93 Difference]: Finished difference Result 3173 states and 4732 transitions. [2019-12-07 14:14:37,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 14:14:37,458 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2019-12-07 14:14:37,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:37,469 INFO L225 Difference]: With dead ends: 3173 [2019-12-07 14:14:37,469 INFO L226 Difference]: Without dead ends: 3171 [2019-12-07 14:14:37,471 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-12-07 14:14:37,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3171 states. [2019-12-07 14:14:37,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3171 to 2563. [2019-12-07 14:14:37,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2563 states. [2019-12-07 14:14:37,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2563 states to 2563 states and 3749 transitions. [2019-12-07 14:14:37,512 INFO L78 Accepts]: Start accepts. Automaton has 2563 states and 3749 transitions. Word has length 28 [2019-12-07 14:14:37,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:37,512 INFO L462 AbstractCegarLoop]: Abstraction has 2563 states and 3749 transitions. [2019-12-07 14:14:37,512 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 14:14:37,512 INFO L276 IsEmpty]: Start isEmpty. Operand 2563 states and 3749 transitions. [2019-12-07 14:14:37,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 14:14:37,513 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:37,513 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1] [2019-12-07 14:14:37,713 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:37,714 INFO L410 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:37,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:37,715 INFO L82 PathProgramCache]: Analyzing trace with hash -1682870728, now seen corresponding path program 2 times [2019-12-07 14:14:37,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:37,716 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067941868] [2019-12-07 14:14:37,716 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:37,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:37,815 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:37,816 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067941868] [2019-12-07 14:14:37,817 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062165823] [2019-12-07 14:14:37,817 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:37,883 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 14:14:37,883 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 14:14:37,884 INFO L264 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 14:14:37,885 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:37,889 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:37,890 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:37,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2019-12-07 14:14:37,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660092758] [2019-12-07 14:14:37,890 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 14:14:37,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:37,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 14:14:37,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:14:37,891 INFO L87 Difference]: Start difference. First operand 2563 states and 3749 transitions. Second operand 5 states. [2019-12-07 14:14:37,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:37,940 INFO L93 Difference]: Finished difference Result 4182 states and 6155 transitions. [2019-12-07 14:14:37,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 14:14:37,940 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-07 14:14:37,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:37,954 INFO L225 Difference]: With dead ends: 4182 [2019-12-07 14:14:37,954 INFO L226 Difference]: Without dead ends: 4181 [2019-12-07 14:14:37,957 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:14:37,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4181 states. [2019-12-07 14:14:37,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4181 to 3071. [2019-12-07 14:14:37,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3071 states. [2019-12-07 14:14:38,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3071 states to 3071 states and 4483 transitions. [2019-12-07 14:14:38,002 INFO L78 Accepts]: Start accepts. Automaton has 3071 states and 4483 transitions. Word has length 31 [2019-12-07 14:14:38,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:38,002 INFO L462 AbstractCegarLoop]: Abstraction has 3071 states and 4483 transitions. [2019-12-07 14:14:38,002 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 14:14:38,002 INFO L276 IsEmpty]: Start isEmpty. Operand 3071 states and 4483 transitions. [2019-12-07 14:14:38,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-07 14:14:38,003 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:38,003 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 1, 1] [2019-12-07 14:14:38,203 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:38,204 INFO L410 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:38,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:38,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1047523897, now seen corresponding path program 3 times [2019-12-07 14:14:38,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:38,204 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999822623] [2019-12-07 14:14:38,204 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:38,228 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:38,228 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999822623] [2019-12-07 14:14:38,228 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394852242] [2019-12-07 14:14:38,228 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:38,253 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-12-07 14:14:38,253 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 14:14:38,254 INFO L264 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 14:14:38,255 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:38,269 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:38,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:38,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-12-07 14:14:38,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247326788] [2019-12-07 14:14:38,270 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 14:14:38,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:38,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 14:14:38,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-12-07 14:14:38,271 INFO L87 Difference]: Start difference. First operand 3071 states and 4483 transitions. Second operand 6 states. [2019-12-07 14:14:38,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:38,335 INFO L93 Difference]: Finished difference Result 4727 states and 6947 transitions. [2019-12-07 14:14:38,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 14:14:38,335 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-07 14:14:38,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:38,353 INFO L225 Difference]: With dead ends: 4727 [2019-12-07 14:14:38,353 INFO L226 Difference]: Without dead ends: 4726 [2019-12-07 14:14:38,356 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-12-07 14:14:38,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4726 states. [2019-12-07 14:14:38,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4726 to 3459. [2019-12-07 14:14:38,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3459 states. [2019-12-07 14:14:38,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3459 states to 3459 states and 5047 transitions. [2019-12-07 14:14:38,412 INFO L78 Accepts]: Start accepts. Automaton has 3459 states and 5047 transitions. Word has length 33 [2019-12-07 14:14:38,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:38,412 INFO L462 AbstractCegarLoop]: Abstraction has 3459 states and 5047 transitions. [2019-12-07 14:14:38,412 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 14:14:38,412 INFO L276 IsEmpty]: Start isEmpty. Operand 3459 states and 5047 transitions. [2019-12-07 14:14:38,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-07 14:14:38,413 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:38,413 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 1, 1] [2019-12-07 14:14:38,614 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:38,614 INFO L410 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:38,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:38,614 INFO L82 PathProgramCache]: Analyzing trace with hash -507101786, now seen corresponding path program 4 times [2019-12-07 14:14:38,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:38,615 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201141406] [2019-12-07 14:14:38,615 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:38,659 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:38,659 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201141406] [2019-12-07 14:14:38,659 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817501914] [2019-12-07 14:14:38,659 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:38,679 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-12-07 14:14:38,679 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 14:14:38,680 INFO L264 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 14:14:38,681 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:38,684 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:38,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:38,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2019-12-07 14:14:38,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718133068] [2019-12-07 14:14:38,685 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 14:14:38,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:38,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 14:14:38,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-12-07 14:14:38,685 INFO L87 Difference]: Start difference. First operand 3459 states and 5047 transitions. Second operand 7 states. [2019-12-07 14:14:38,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:38,742 INFO L93 Difference]: Finished difference Result 5326 states and 7884 transitions. [2019-12-07 14:14:38,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 14:14:38,743 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-12-07 14:14:38,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:38,762 INFO L225 Difference]: With dead ends: 5326 [2019-12-07 14:14:38,763 INFO L226 Difference]: Without dead ends: 5324 [2019-12-07 14:14:38,767 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-12-07 14:14:38,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5324 states. [2019-12-07 14:14:38,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5324 to 4377. [2019-12-07 14:14:38,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4377 states. [2019-12-07 14:14:38,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4377 states to 4377 states and 6353 transitions. [2019-12-07 14:14:38,819 INFO L78 Accepts]: Start accepts. Automaton has 4377 states and 6353 transitions. Word has length 35 [2019-12-07 14:14:38,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:38,819 INFO L462 AbstractCegarLoop]: Abstraction has 4377 states and 6353 transitions. [2019-12-07 14:14:38,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 14:14:38,819 INFO L276 IsEmpty]: Start isEmpty. Operand 4377 states and 6353 transitions. [2019-12-07 14:14:38,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-12-07 14:14:38,820 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:38,820 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1] [2019-12-07 14:14:39,020 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:39,021 INFO L410 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:39,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:39,022 INFO L82 PathProgramCache]: Analyzing trace with hash -32854327, now seen corresponding path program 3 times [2019-12-07 14:14:39,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:39,022 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352664882] [2019-12-07 14:14:39,023 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:39,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:39,081 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:39,081 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352664882] [2019-12-07 14:14:39,081 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821569651] [2019-12-07 14:14:39,081 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:39,100 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-12-07 14:14:39,100 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 14:14:39,100 INFO L264 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 14:14:39,101 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:39,104 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:39,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:39,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-12-07 14:14:39,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257998826] [2019-12-07 14:14:39,105 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 14:14:39,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:39,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 14:14:39,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-12-07 14:14:39,106 INFO L87 Difference]: Start difference. First operand 4377 states and 6353 transitions. Second operand 6 states. [2019-12-07 14:14:39,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:39,162 INFO L93 Difference]: Finished difference Result 7069 states and 10425 transitions. [2019-12-07 14:14:39,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 14:14:39,163 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2019-12-07 14:14:39,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:39,172 INFO L225 Difference]: With dead ends: 7069 [2019-12-07 14:14:39,172 INFO L226 Difference]: Without dead ends: 7067 [2019-12-07 14:14:39,176 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-12-07 14:14:39,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7067 states. [2019-12-07 14:14:39,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7067 to 5729. [2019-12-07 14:14:39,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5729 states. [2019-12-07 14:14:39,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5729 states to 5729 states and 8265 transitions. [2019-12-07 14:14:39,242 INFO L78 Accepts]: Start accepts. Automaton has 5729 states and 8265 transitions. Word has length 36 [2019-12-07 14:14:39,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:39,242 INFO L462 AbstractCegarLoop]: Abstraction has 5729 states and 8265 transitions. [2019-12-07 14:14:39,242 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 14:14:39,242 INFO L276 IsEmpty]: Start isEmpty. Operand 5729 states and 8265 transitions. [2019-12-07 14:14:39,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-12-07 14:14:39,243 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:39,244 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1] [2019-12-07 14:14:39,444 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:39,444 INFO L410 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:39,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:39,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1137071253, now seen corresponding path program 3 times [2019-12-07 14:14:39,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:39,445 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890699702] [2019-12-07 14:14:39,445 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:39,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:39,468 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:39,468 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890699702] [2019-12-07 14:14:39,469 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371912880] [2019-12-07 14:14:39,469 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:39,488 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-12-07 14:14:39,488 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 14:14:39,489 INFO L264 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 14:14:39,490 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:39,494 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:39,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:39,494 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-12-07 14:14:39,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916477514] [2019-12-07 14:14:39,494 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 14:14:39,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:39,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 14:14:39,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-12-07 14:14:39,495 INFO L87 Difference]: Start difference. First operand 5729 states and 8265 transitions. Second operand 6 states. [2019-12-07 14:14:39,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:39,574 INFO L93 Difference]: Finished difference Result 8806 states and 12809 transitions. [2019-12-07 14:14:39,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 14:14:39,574 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 41 [2019-12-07 14:14:39,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:39,592 INFO L225 Difference]: With dead ends: 8806 [2019-12-07 14:14:39,592 INFO L226 Difference]: Without dead ends: 8805 [2019-12-07 14:14:39,597 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-12-07 14:14:39,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8805 states. [2019-12-07 14:14:39,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8805 to 6453. [2019-12-07 14:14:39,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6453 states. [2019-12-07 14:14:39,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6453 states to 6453 states and 9305 transitions. [2019-12-07 14:14:39,667 INFO L78 Accepts]: Start accepts. Automaton has 6453 states and 9305 transitions. Word has length 41 [2019-12-07 14:14:39,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:39,667 INFO L462 AbstractCegarLoop]: Abstraction has 6453 states and 9305 transitions. [2019-12-07 14:14:39,667 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 14:14:39,667 INFO L276 IsEmpty]: Start isEmpty. Operand 6453 states and 9305 transitions. [2019-12-07 14:14:39,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-12-07 14:14:39,668 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:39,668 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 1, 1] [2019-12-07 14:14:39,868 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:39,869 INFO L410 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:39,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:39,869 INFO L82 PathProgramCache]: Analyzing trace with hash 589297713, now seen corresponding path program 4 times [2019-12-07 14:14:39,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:39,869 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110530504] [2019-12-07 14:14:39,869 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:39,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:39,926 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:39,926 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110530504] [2019-12-07 14:14:39,926 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2115340850] [2019-12-07 14:14:39,926 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:39,946 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-12-07 14:14:39,946 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 14:14:39,947 INFO L264 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 14:14:39,948 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:39,952 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:39,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:39,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2019-12-07 14:14:39,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609789569] [2019-12-07 14:14:39,953 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 14:14:39,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:39,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 14:14:39,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-12-07 14:14:39,953 INFO L87 Difference]: Start difference. First operand 6453 states and 9305 transitions. Second operand 7 states. [2019-12-07 14:14:40,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:40,022 INFO L93 Difference]: Finished difference Result 9500 states and 13815 transitions. [2019-12-07 14:14:40,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 14:14:40,022 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2019-12-07 14:14:40,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:40,029 INFO L225 Difference]: With dead ends: 9500 [2019-12-07 14:14:40,029 INFO L226 Difference]: Without dead ends: 9499 [2019-12-07 14:14:40,035 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-12-07 14:14:40,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9499 states. [2019-12-07 14:14:40,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9499 to 7025. [2019-12-07 14:14:40,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7025 states. [2019-12-07 14:14:40,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7025 states to 7025 states and 10131 transitions. [2019-12-07 14:14:40,109 INFO L78 Accepts]: Start accepts. Automaton has 7025 states and 10131 transitions. Word has length 41 [2019-12-07 14:14:40,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:40,110 INFO L462 AbstractCegarLoop]: Abstraction has 7025 states and 10131 transitions. [2019-12-07 14:14:40,110 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 14:14:40,110 INFO L276 IsEmpty]: Start isEmpty. Operand 7025 states and 10131 transitions. [2019-12-07 14:14:40,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-12-07 14:14:40,111 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:40,111 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 1, 1] [2019-12-07 14:14:40,311 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:40,312 INFO L410 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:40,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:40,312 INFO L82 PathProgramCache]: Analyzing trace with hash 644163159, now seen corresponding path program 5 times [2019-12-07 14:14:40,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:40,312 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419355634] [2019-12-07 14:14:40,312 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:40,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:40,347 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:40,347 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419355634] [2019-12-07 14:14:40,348 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744384579] [2019-12-07 14:14:40,348 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:40,370 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-12-07 14:14:40,370 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 14:14:40,371 INFO L264 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 14:14:40,371 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:40,375 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:40,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:40,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2019-12-07 14:14:40,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879907039] [2019-12-07 14:14:40,376 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 14:14:40,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:40,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 14:14:40,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-12-07 14:14:40,376 INFO L87 Difference]: Start difference. First operand 7025 states and 10131 transitions. Second operand 8 states. [2019-12-07 14:14:40,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:40,457 INFO L93 Difference]: Finished difference Result 10381 states and 15206 transitions. [2019-12-07 14:14:40,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 14:14:40,457 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2019-12-07 14:14:40,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:40,468 INFO L225 Difference]: With dead ends: 10381 [2019-12-07 14:14:40,469 INFO L226 Difference]: Without dead ends: 10379 [2019-12-07 14:14:40,476 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-12-07 14:14:40,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10379 states. [2019-12-07 14:14:40,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10379 to 8665. [2019-12-07 14:14:40,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8665 states. [2019-12-07 14:14:40,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8665 states to 8665 states and 12438 transitions. [2019-12-07 14:14:40,592 INFO L78 Accepts]: Start accepts. Automaton has 8665 states and 12438 transitions. Word has length 42 [2019-12-07 14:14:40,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:40,592 INFO L462 AbstractCegarLoop]: Abstraction has 8665 states and 12438 transitions. [2019-12-07 14:14:40,592 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 14:14:40,592 INFO L276 IsEmpty]: Start isEmpty. Operand 8665 states and 12438 transitions. [2019-12-07 14:14:40,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-12-07 14:14:40,594 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:40,594 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1] [2019-12-07 14:14:40,795 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:40,795 INFO L410 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:40,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:40,796 INFO L82 PathProgramCache]: Analyzing trace with hash -809708433, now seen corresponding path program 4 times [2019-12-07 14:14:40,796 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:40,797 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711693655] [2019-12-07 14:14:40,797 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:40,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:40,857 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:40,857 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711693655] [2019-12-07 14:14:40,857 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99907599] [2019-12-07 14:14:40,857 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:40,876 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-12-07 14:14:40,876 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 14:14:40,876 INFO L264 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 14:14:40,877 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:40,882 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:40,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:40,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2019-12-07 14:14:40,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811236848] [2019-12-07 14:14:40,883 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 14:14:40,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:40,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 14:14:40,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-12-07 14:14:40,883 INFO L87 Difference]: Start difference. First operand 8665 states and 12438 transitions. Second operand 7 states. [2019-12-07 14:14:40,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:40,957 INFO L93 Difference]: Finished difference Result 13312 states and 19429 transitions. [2019-12-07 14:14:40,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 14:14:40,957 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2019-12-07 14:14:40,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:40,966 INFO L225 Difference]: With dead ends: 13312 [2019-12-07 14:14:40,966 INFO L226 Difference]: Without dead ends: 13310 [2019-12-07 14:14:40,969 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-12-07 14:14:40,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13310 states. [2019-12-07 14:14:41,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13310 to 10967. [2019-12-07 14:14:41,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10967 states. [2019-12-07 14:14:41,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10967 states to 10967 states and 15657 transitions. [2019-12-07 14:14:41,084 INFO L78 Accepts]: Start accepts. Automaton has 10967 states and 15657 transitions. Word has length 45 [2019-12-07 14:14:41,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:41,084 INFO L462 AbstractCegarLoop]: Abstraction has 10967 states and 15657 transitions. [2019-12-07 14:14:41,084 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 14:14:41,084 INFO L276 IsEmpty]: Start isEmpty. Operand 10967 states and 15657 transitions. [2019-12-07 14:14:41,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-12-07 14:14:41,086 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:41,086 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 1, 1] [2019-12-07 14:14:41,286 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:41,287 INFO L410 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:41,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:41,288 INFO L82 PathProgramCache]: Analyzing trace with hash -144620410, now seen corresponding path program 6 times [2019-12-07 14:14:41,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:41,288 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562369095] [2019-12-07 14:14:41,289 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:41,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:41,336 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:41,336 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562369095] [2019-12-07 14:14:41,336 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632276537] [2019-12-07 14:14:41,336 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:41,358 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-12-07 14:14:41,358 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 14:14:41,358 INFO L264 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 14:14:41,359 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:41,365 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:41,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:41,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2019-12-07 14:14:41,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649860239] [2019-12-07 14:14:41,366 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-07 14:14:41,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:41,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 14:14:41,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-12-07 14:14:41,366 INFO L87 Difference]: Start difference. First operand 10967 states and 15657 transitions. Second operand 9 states. [2019-12-07 14:14:41,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:41,453 INFO L93 Difference]: Finished difference Result 15622 states and 22665 transitions. [2019-12-07 14:14:41,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 14:14:41,453 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2019-12-07 14:14:41,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:41,464 INFO L225 Difference]: With dead ends: 15622 [2019-12-07 14:14:41,464 INFO L226 Difference]: Without dead ends: 15620 [2019-12-07 14:14:41,468 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-12-07 14:14:41,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15620 states. [2019-12-07 14:14:41,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15620 to 13091. [2019-12-07 14:14:41,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13091 states. [2019-12-07 14:14:41,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13091 states to 13091 states and 18609 transitions. [2019-12-07 14:14:41,627 INFO L78 Accepts]: Start accepts. Automaton has 13091 states and 18609 transitions. Word has length 49 [2019-12-07 14:14:41,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:41,627 INFO L462 AbstractCegarLoop]: Abstraction has 13091 states and 18609 transitions. [2019-12-07 14:14:41,627 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-07 14:14:41,627 INFO L276 IsEmpty]: Start isEmpty. Operand 13091 states and 18609 transitions. [2019-12-07 14:14:41,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-12-07 14:14:41,629 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:41,629 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 1, 1] [2019-12-07 14:14:41,830 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:41,830 INFO L410 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:41,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:41,831 INFO L82 PathProgramCache]: Analyzing trace with hash 2004605083, now seen corresponding path program 5 times [2019-12-07 14:14:41,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:41,832 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193956137] [2019-12-07 14:14:41,832 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:41,886 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:41,887 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193956137] [2019-12-07 14:14:41,887 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484062546] [2019-12-07 14:14:41,887 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:41,913 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-12-07 14:14:41,914 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 14:14:41,914 INFO L264 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 14:14:41,915 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:41,922 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:41,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:41,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2019-12-07 14:14:41,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604797594] [2019-12-07 14:14:41,923 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 14:14:41,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:41,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 14:14:41,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-12-07 14:14:41,923 INFO L87 Difference]: Start difference. First operand 13091 states and 18609 transitions. Second operand 8 states. [2019-12-07 14:14:42,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:42,037 INFO L93 Difference]: Finished difference Result 19890 states and 28521 transitions. [2019-12-07 14:14:42,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 14:14:42,038 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2019-12-07 14:14:42,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:42,052 INFO L225 Difference]: With dead ends: 19890 [2019-12-07 14:14:42,052 INFO L226 Difference]: Without dead ends: 19889 [2019-12-07 14:14:42,057 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-12-07 14:14:42,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19889 states. [2019-12-07 14:14:42,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19889 to 14129. [2019-12-07 14:14:42,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14129 states. [2019-12-07 14:14:42,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14129 states to 14129 states and 20097 transitions. [2019-12-07 14:14:42,228 INFO L78 Accepts]: Start accepts. Automaton has 14129 states and 20097 transitions. Word has length 49 [2019-12-07 14:14:42,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:42,228 INFO L462 AbstractCegarLoop]: Abstraction has 14129 states and 20097 transitions. [2019-12-07 14:14:42,228 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 14:14:42,228 INFO L276 IsEmpty]: Start isEmpty. Operand 14129 states and 20097 transitions. [2019-12-07 14:14:42,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-12-07 14:14:42,230 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:42,230 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1] [2019-12-07 14:14:42,430 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:42,431 INFO L410 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:42,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:42,432 INFO L82 PathProgramCache]: Analyzing trace with hash -85375778, now seen corresponding path program 4 times [2019-12-07 14:14:42,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:42,433 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469485268] [2019-12-07 14:14:42,433 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:42,493 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:42,493 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469485268] [2019-12-07 14:14:42,493 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412574972] [2019-12-07 14:14:42,493 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:42,518 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-12-07 14:14:42,518 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 14:14:42,519 INFO L264 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 14:14:42,519 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:42,524 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:42,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:42,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2019-12-07 14:14:42,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238565477] [2019-12-07 14:14:42,525 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 14:14:42,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:42,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 14:14:42,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-12-07 14:14:42,525 INFO L87 Difference]: Start difference. First operand 14129 states and 20097 transitions. Second operand 7 states. [2019-12-07 14:14:42,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:42,674 INFO L93 Difference]: Finished difference Result 20774 states and 29837 transitions. [2019-12-07 14:14:42,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 14:14:42,675 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-12-07 14:14:42,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:42,692 INFO L225 Difference]: With dead ends: 20774 [2019-12-07 14:14:42,692 INFO L226 Difference]: Without dead ends: 20773 [2019-12-07 14:14:42,699 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-12-07 14:14:42,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20773 states. [2019-12-07 14:14:42,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20773 to 15381. [2019-12-07 14:14:42,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15381 states. [2019-12-07 14:14:42,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15381 states to 15381 states and 21881 transitions. [2019-12-07 14:14:42,884 INFO L78 Accepts]: Start accepts. Automaton has 15381 states and 21881 transitions. Word has length 51 [2019-12-07 14:14:42,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:42,884 INFO L462 AbstractCegarLoop]: Abstraction has 15381 states and 21881 transitions. [2019-12-07 14:14:42,884 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 14:14:42,884 INFO L276 IsEmpty]: Start isEmpty. Operand 15381 states and 21881 transitions. [2019-12-07 14:14:42,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-12-07 14:14:42,886 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:42,886 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 1, 1] [2019-12-07 14:14:43,087 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:43,087 INFO L410 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:43,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:43,088 INFO L82 PathProgramCache]: Analyzing trace with hash -884758135, now seen corresponding path program 5 times [2019-12-07 14:14:43,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:43,089 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612055241] [2019-12-07 14:14:43,089 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:43,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:43,128 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:43,128 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612055241] [2019-12-07 14:14:43,128 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054526815] [2019-12-07 14:14:43,128 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:43,149 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-12-07 14:14:43,149 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 14:14:43,150 INFO L264 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 14:14:43,150 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:43,155 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:43,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:43,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2019-12-07 14:14:43,155 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460999971] [2019-12-07 14:14:43,155 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 14:14:43,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:43,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 14:14:43,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-12-07 14:14:43,156 INFO L87 Difference]: Start difference. First operand 15381 states and 21881 transitions. Second operand 8 states. [2019-12-07 14:14:43,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:43,264 INFO L93 Difference]: Finished difference Result 22697 states and 32841 transitions. [2019-12-07 14:14:43,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 14:14:43,264 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2019-12-07 14:14:43,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:43,281 INFO L225 Difference]: With dead ends: 22697 [2019-12-07 14:14:43,281 INFO L226 Difference]: Without dead ends: 22695 [2019-12-07 14:14:43,284 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-12-07 14:14:43,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22695 states. [2019-12-07 14:14:43,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22695 to 18973. [2019-12-07 14:14:43,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18973 states. [2019-12-07 14:14:43,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18973 states to 18973 states and 26864 transitions. [2019-12-07 14:14:43,540 INFO L78 Accepts]: Start accepts. Automaton has 18973 states and 26864 transitions. Word has length 54 [2019-12-07 14:14:43,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:43,540 INFO L462 AbstractCegarLoop]: Abstraction has 18973 states and 26864 transitions. [2019-12-07 14:14:43,540 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 14:14:43,540 INFO L276 IsEmpty]: Start isEmpty. Operand 18973 states and 26864 transitions. [2019-12-07 14:14:43,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-12-07 14:14:43,542 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:43,542 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 1, 1] [2019-12-07 14:14:43,743 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:43,743 INFO L410 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:43,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:43,744 INFO L82 PathProgramCache]: Analyzing trace with hash -931224713, now seen corresponding path program 7 times [2019-12-07 14:14:43,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:43,745 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461896992] [2019-12-07 14:14:43,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:43,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:43,806 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:43,806 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461896992] [2019-12-07 14:14:43,807 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061432003] [2019-12-07 14:14:43,807 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:43,828 INFO L264 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 14:14:43,829 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:43,835 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:43,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:43,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2019-12-07 14:14:43,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775298723] [2019-12-07 14:14:43,836 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 14:14:43,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:43,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 14:14:43,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-12-07 14:14:43,836 INFO L87 Difference]: Start difference. First operand 18973 states and 26864 transitions. Second operand 10 states. [2019-12-07 14:14:43,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:43,980 INFO L93 Difference]: Finished difference Result 26251 states and 37778 transitions. [2019-12-07 14:14:43,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 14:14:43,980 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 56 [2019-12-07 14:14:43,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:44,002 INFO L225 Difference]: With dead ends: 26251 [2019-12-07 14:14:44,002 INFO L226 Difference]: Without dead ends: 26249 [2019-12-07 14:14:44,006 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-12-07 14:14:44,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26249 states. [2019-12-07 14:14:44,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26249 to 22311. [2019-12-07 14:14:44,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22311 states. [2019-12-07 14:14:44,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22311 states to 22311 states and 31473 transitions. [2019-12-07 14:14:44,248 INFO L78 Accepts]: Start accepts. Automaton has 22311 states and 31473 transitions. Word has length 56 [2019-12-07 14:14:44,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:44,249 INFO L462 AbstractCegarLoop]: Abstraction has 22311 states and 31473 transitions. [2019-12-07 14:14:44,249 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 14:14:44,249 INFO L276 IsEmpty]: Start isEmpty. Operand 22311 states and 31473 transitions. [2019-12-07 14:14:44,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-12-07 14:14:44,251 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:44,251 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 1, 1] [2019-12-07 14:14:44,452 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:44,452 INFO L410 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:44,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:44,453 INFO L82 PathProgramCache]: Analyzing trace with hash -2041729275, now seen corresponding path program 6 times [2019-12-07 14:14:44,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:44,454 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120472192] [2019-12-07 14:14:44,454 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:44,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:44,507 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:44,507 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120472192] [2019-12-07 14:14:44,507 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550152354] [2019-12-07 14:14:44,507 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:44,536 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-12-07 14:14:44,536 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 14:14:44,537 INFO L264 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 14:14:44,537 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:44,543 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:44,544 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:44,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2019-12-07 14:14:44,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085457787] [2019-12-07 14:14:44,544 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-07 14:14:44,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:44,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 14:14:44,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-12-07 14:14:44,544 INFO L87 Difference]: Start difference. First operand 22311 states and 31473 transitions. Second operand 9 states. [2019-12-07 14:14:44,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:44,730 INFO L93 Difference]: Finished difference Result 32955 states and 46932 transitions. [2019-12-07 14:14:44,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 14:14:44,731 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 57 [2019-12-07 14:14:44,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:44,761 INFO L225 Difference]: With dead ends: 32955 [2019-12-07 14:14:44,761 INFO L226 Difference]: Without dead ends: 32954 [2019-12-07 14:14:44,766 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-12-07 14:14:44,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32954 states. [2019-12-07 14:14:45,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32954 to 23705. [2019-12-07 14:14:45,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23705 states. [2019-12-07 14:14:45,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23705 states to 23705 states and 33462 transitions. [2019-12-07 14:14:45,056 INFO L78 Accepts]: Start accepts. Automaton has 23705 states and 33462 transitions. Word has length 57 [2019-12-07 14:14:45,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:45,056 INFO L462 AbstractCegarLoop]: Abstraction has 23705 states and 33462 transitions. [2019-12-07 14:14:45,056 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-07 14:14:45,056 INFO L276 IsEmpty]: Start isEmpty. Operand 23705 states and 33462 transitions. [2019-12-07 14:14:45,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-12-07 14:14:45,059 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:45,059 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 1, 1] [2019-12-07 14:14:45,260 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:45,260 INFO L410 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:45,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:45,261 INFO L82 PathProgramCache]: Analyzing trace with hash 2087316113, now seen corresponding path program 5 times [2019-12-07 14:14:45,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:45,262 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099027462] [2019-12-07 14:14:45,262 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:45,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:45,334 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:45,334 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099027462] [2019-12-07 14:14:45,334 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504769815] [2019-12-07 14:14:45,334 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:45,355 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-12-07 14:14:45,355 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 14:14:45,355 INFO L264 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 14:14:45,356 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:45,362 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:45,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:45,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2019-12-07 14:14:45,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443469479] [2019-12-07 14:14:45,363 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 14:14:45,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:45,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 14:14:45,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-12-07 14:14:45,363 INFO L87 Difference]: Start difference. First operand 23705 states and 33462 transitions. Second operand 8 states. [2019-12-07 14:14:45,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:45,522 INFO L93 Difference]: Finished difference Result 33669 states and 48018 transitions. [2019-12-07 14:14:45,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 14:14:45,523 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2019-12-07 14:14:45,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:45,551 INFO L225 Difference]: With dead ends: 33669 [2019-12-07 14:14:45,551 INFO L226 Difference]: Without dead ends: 33668 [2019-12-07 14:14:45,556 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-12-07 14:14:45,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33668 states. [2019-12-07 14:14:45,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33668 to 25269. [2019-12-07 14:14:45,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25269 states. [2019-12-07 14:14:45,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25269 states to 25269 states and 35684 transitions. [2019-12-07 14:14:45,905 INFO L78 Accepts]: Start accepts. Automaton has 25269 states and 35684 transitions. Word has length 61 [2019-12-07 14:14:45,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:45,906 INFO L462 AbstractCegarLoop]: Abstraction has 25269 states and 35684 transitions. [2019-12-07 14:14:45,906 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 14:14:45,906 INFO L276 IsEmpty]: Start isEmpty. Operand 25269 states and 35684 transitions. [2019-12-07 14:14:45,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-12-07 14:14:45,909 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:45,909 INFO L410 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 1, 1] [2019-12-07 14:14:46,109 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:46,110 INFO L410 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:46,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:46,111 INFO L82 PathProgramCache]: Analyzing trace with hash 1714864998, now seen corresponding path program 8 times [2019-12-07 14:14:46,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:46,111 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330543617] [2019-12-07 14:14:46,112 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:46,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:46,184 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:46,184 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330543617] [2019-12-07 14:14:46,185 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198339923] [2019-12-07 14:14:46,185 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:46,207 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 14:14:46,207 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 14:14:46,208 INFO L264 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 14:14:46,208 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:46,215 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:46,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:46,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2019-12-07 14:14:46,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884620788] [2019-12-07 14:14:46,215 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-12-07 14:14:46,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:46,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-12-07 14:14:46,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-12-07 14:14:46,216 INFO L87 Difference]: Start difference. First operand 25269 states and 35684 transitions. Second operand 11 states. [2019-12-07 14:14:46,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:46,412 INFO L93 Difference]: Finished difference Result 34130 states and 48968 transitions. [2019-12-07 14:14:46,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-07 14:14:46,413 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 63 [2019-12-07 14:14:46,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:46,446 INFO L225 Difference]: With dead ends: 34130 [2019-12-07 14:14:46,446 INFO L226 Difference]: Without dead ends: 34128 [2019-12-07 14:14:46,452 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-12-07 14:14:46,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34128 states. [2019-12-07 14:14:46,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34128 to 29345. [2019-12-07 14:14:46,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29345 states. [2019-12-07 14:14:46,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29345 states to 29345 states and 41306 transitions. [2019-12-07 14:14:46,845 INFO L78 Accepts]: Start accepts. Automaton has 29345 states and 41306 transitions. Word has length 63 [2019-12-07 14:14:46,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:46,845 INFO L462 AbstractCegarLoop]: Abstraction has 29345 states and 41306 transitions. [2019-12-07 14:14:46,845 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-12-07 14:14:46,845 INFO L276 IsEmpty]: Start isEmpty. Operand 29345 states and 41306 transitions. [2019-12-07 14:14:46,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-12-07 14:14:46,848 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:46,848 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 1, 1] [2019-12-07 14:14:47,048 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:47,049 INFO L410 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:47,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:47,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1360130479, now seen corresponding path program 6 times [2019-12-07 14:14:47,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:47,050 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47046881] [2019-12-07 14:14:47,051 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:47,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:47,128 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:47,129 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47046881] [2019-12-07 14:14:47,129 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67934745] [2019-12-07 14:14:47,129 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:47,153 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-12-07 14:14:47,153 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 14:14:47,154 INFO L264 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 14:14:47,154 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:47,160 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:47,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:47,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2019-12-07 14:14:47,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511970566] [2019-12-07 14:14:47,161 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-07 14:14:47,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:47,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 14:14:47,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-12-07 14:14:47,161 INFO L87 Difference]: Start difference. First operand 29345 states and 41306 transitions. Second operand 9 states. [2019-12-07 14:14:47,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:47,348 INFO L93 Difference]: Finished difference Result 41880 states and 59971 transitions. [2019-12-07 14:14:47,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 14:14:47,348 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 63 [2019-12-07 14:14:47,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:47,383 INFO L225 Difference]: With dead ends: 41880 [2019-12-07 14:14:47,383 INFO L226 Difference]: Without dead ends: 41878 [2019-12-07 14:14:47,390 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-12-07 14:14:47,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41878 states. [2019-12-07 14:14:47,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41878 to 35465. [2019-12-07 14:14:47,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35465 states. [2019-12-07 14:14:47,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35465 states to 35465 states and 49718 transitions. [2019-12-07 14:14:47,802 INFO L78 Accepts]: Start accepts. Automaton has 35465 states and 49718 transitions. Word has length 63 [2019-12-07 14:14:47,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:47,803 INFO L462 AbstractCegarLoop]: Abstraction has 35465 states and 49718 transitions. [2019-12-07 14:14:47,803 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-07 14:14:47,803 INFO L276 IsEmpty]: Start isEmpty. Operand 35465 states and 49718 transitions. [2019-12-07 14:14:47,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-12-07 14:14:47,807 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:47,807 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 1, 1] [2019-12-07 14:14:48,008 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:48,008 INFO L410 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:48,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:48,009 INFO L82 PathProgramCache]: Analyzing trace with hash -851477649, now seen corresponding path program 7 times [2019-12-07 14:14:48,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:48,010 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273344409] [2019-12-07 14:14:48,010 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:48,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:48,073 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:48,073 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273344409] [2019-12-07 14:14:48,073 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838744344] [2019-12-07 14:14:48,073 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:48,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:48,096 INFO L264 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 14:14:48,097 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:48,104 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:48,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:48,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2019-12-07 14:14:48,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662522838] [2019-12-07 14:14:48,105 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 14:14:48,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:48,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 14:14:48,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-12-07 14:14:48,105 INFO L87 Difference]: Start difference. First operand 35465 states and 49718 transitions. Second operand 10 states. [2019-12-07 14:14:48,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:48,427 INFO L93 Difference]: Finished difference Result 51129 states and 72397 transitions. [2019-12-07 14:14:48,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 14:14:48,427 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 65 [2019-12-07 14:14:48,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:48,477 INFO L225 Difference]: With dead ends: 51129 [2019-12-07 14:14:48,477 INFO L226 Difference]: Without dead ends: 51128 [2019-12-07 14:14:48,485 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-12-07 14:14:48,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51128 states. [2019-12-07 14:14:48,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51128 to 37261. [2019-12-07 14:14:48,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37261 states. [2019-12-07 14:14:48,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37261 states to 37261 states and 52271 transitions. [2019-12-07 14:14:48,957 INFO L78 Accepts]: Start accepts. Automaton has 37261 states and 52271 transitions. Word has length 65 [2019-12-07 14:14:48,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:48,957 INFO L462 AbstractCegarLoop]: Abstraction has 37261 states and 52271 transitions. [2019-12-07 14:14:48,957 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 14:14:48,957 INFO L276 IsEmpty]: Start isEmpty. Operand 37261 states and 52271 transitions. [2019-12-07 14:14:48,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-12-07 14:14:48,961 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:48,961 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 1, 1] [2019-12-07 14:14:49,162 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:49,163 INFO L410 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:49,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:49,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1457084265, now seen corresponding path program 9 times [2019-12-07 14:14:49,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:49,164 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206329945] [2019-12-07 14:14:49,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:49,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:49,238 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:49,238 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206329945] [2019-12-07 14:14:49,239 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687147335] [2019-12-07 14:14:49,239 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:49,266 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2019-12-07 14:14:49,266 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 14:14:49,267 INFO L264 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 14:14:49,267 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:49,274 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:49,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:49,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2019-12-07 14:14:49,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184148786] [2019-12-07 14:14:49,275 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 14:14:49,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:49,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 14:14:49,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-12-07 14:14:49,275 INFO L87 Difference]: Start difference. First operand 37261 states and 52271 transitions. Second operand 12 states. [2019-12-07 14:14:49,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:49,597 INFO L93 Difference]: Finished difference Result 49299 states and 70254 transitions. [2019-12-07 14:14:49,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-07 14:14:49,598 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 70 [2019-12-07 14:14:49,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:49,642 INFO L225 Difference]: With dead ends: 49299 [2019-12-07 14:14:49,642 INFO L226 Difference]: Without dead ends: 49297 [2019-12-07 14:14:49,648 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-12-07 14:14:49,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49297 states. [2019-12-07 14:14:50,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49297 to 42813. [2019-12-07 14:14:50,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42813 states. [2019-12-07 14:14:50,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42813 states to 42813 states and 59889 transitions. [2019-12-07 14:14:50,123 INFO L78 Accepts]: Start accepts. Automaton has 42813 states and 59889 transitions. Word has length 70 [2019-12-07 14:14:50,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:50,123 INFO L462 AbstractCegarLoop]: Abstraction has 42813 states and 59889 transitions. [2019-12-07 14:14:50,123 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 14:14:50,123 INFO L276 IsEmpty]: Start isEmpty. Operand 42813 states and 59889 transitions. [2019-12-07 14:14:50,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-12-07 14:14:50,128 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:50,128 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1] [2019-12-07 14:14:50,328 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:50,329 INFO L410 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:50,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:50,330 INFO L82 PathProgramCache]: Analyzing trace with hash -1593226108, now seen corresponding path program 6 times [2019-12-07 14:14:50,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:50,330 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362132417] [2019-12-07 14:14:50,330 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:50,382 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:50,382 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362132417] [2019-12-07 14:14:50,382 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096087827] [2019-12-07 14:14:50,382 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:50,407 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-12-07 14:14:50,407 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 14:14:50,408 INFO L264 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 14:14:50,409 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:50,417 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:50,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:50,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2019-12-07 14:14:50,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255378868] [2019-12-07 14:14:50,417 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-07 14:14:50,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:50,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 14:14:50,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-12-07 14:14:50,418 INFO L87 Difference]: Start difference. First operand 42813 states and 59889 transitions. Second operand 9 states. [2019-12-07 14:14:50,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:50,682 INFO L93 Difference]: Finished difference Result 59102 states and 83563 transitions. [2019-12-07 14:14:50,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 14:14:50,682 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2019-12-07 14:14:50,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:50,743 INFO L225 Difference]: With dead ends: 59102 [2019-12-07 14:14:50,743 INFO L226 Difference]: Without dead ends: 59101 [2019-12-07 14:14:50,758 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-12-07 14:14:50,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59101 states. [2019-12-07 14:14:51,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59101 to 45005. [2019-12-07 14:14:51,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45005 states. [2019-12-07 14:14:51,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45005 states to 45005 states and 62987 transitions. [2019-12-07 14:14:51,374 INFO L78 Accepts]: Start accepts. Automaton has 45005 states and 62987 transitions. Word has length 71 [2019-12-07 14:14:51,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:51,374 INFO L462 AbstractCegarLoop]: Abstraction has 45005 states and 62987 transitions. [2019-12-07 14:14:51,374 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-07 14:14:51,374 INFO L276 IsEmpty]: Start isEmpty. Operand 45005 states and 62987 transitions. [2019-12-07 14:14:51,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-12-07 14:14:51,378 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:51,378 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 1, 1] [2019-12-07 14:14:51,579 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:51,579 INFO L410 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:51,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:51,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1572566089, now seen corresponding path program 7 times [2019-12-07 14:14:51,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:51,581 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210773025] [2019-12-07 14:14:51,581 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:51,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:51,632 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:51,632 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210773025] [2019-12-07 14:14:51,632 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673573271] [2019-12-07 14:14:51,632 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:51,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:51,661 INFO L264 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 14:14:51,661 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:51,668 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:51,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:51,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2019-12-07 14:14:51,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443528677] [2019-12-07 14:14:51,668 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 14:14:51,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:51,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 14:14:51,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-12-07 14:14:51,669 INFO L87 Difference]: Start difference. First operand 45005 states and 62987 transitions. Second operand 10 states. [2019-12-07 14:14:51,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:51,952 INFO L93 Difference]: Finished difference Result 62465 states and 88920 transitions. [2019-12-07 14:14:51,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 14:14:51,953 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 72 [2019-12-07 14:14:51,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:52,014 INFO L225 Difference]: With dead ends: 62465 [2019-12-07 14:14:52,014 INFO L226 Difference]: Without dead ends: 62463 [2019-12-07 14:14:52,025 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-12-07 14:14:52,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62463 states. [2019-12-07 14:14:52,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62463 to 53489. [2019-12-07 14:14:52,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53489 states. [2019-12-07 14:14:52,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53489 states to 53489 states and 74598 transitions. [2019-12-07 14:14:52,776 INFO L78 Accepts]: Start accepts. Automaton has 53489 states and 74598 transitions. Word has length 72 [2019-12-07 14:14:52,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:52,776 INFO L462 AbstractCegarLoop]: Abstraction has 53489 states and 74598 transitions. [2019-12-07 14:14:52,776 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 14:14:52,776 INFO L276 IsEmpty]: Start isEmpty. Operand 53489 states and 74598 transitions. [2019-12-07 14:14:52,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-12-07 14:14:52,781 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:52,781 INFO L410 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 1, 1] [2019-12-07 14:14:52,981 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:52,982 INFO L410 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:52,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:52,983 INFO L82 PathProgramCache]: Analyzing trace with hash 2147171801, now seen corresponding path program 8 times [2019-12-07 14:14:52,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:52,983 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132749287] [2019-12-07 14:14:52,984 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:52,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:53,073 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:53,073 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132749287] [2019-12-07 14:14:53,073 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504157381] [2019-12-07 14:14:53,073 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:53,096 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 14:14:53,096 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 14:14:53,096 INFO L264 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 14:14:53,097 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:53,109 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:53,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:53,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2019-12-07 14:14:53,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121431518] [2019-12-07 14:14:53,109 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-12-07 14:14:53,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:53,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-12-07 14:14:53,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-12-07 14:14:53,110 INFO L87 Difference]: Start difference. First operand 53489 states and 74598 transitions. Second operand 11 states. [2019-12-07 14:14:53,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:53,452 INFO L93 Difference]: Finished difference Result 75498 states and 106380 transitions. [2019-12-07 14:14:53,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-07 14:14:53,453 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 73 [2019-12-07 14:14:53,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:53,521 INFO L225 Difference]: With dead ends: 75498 [2019-12-07 14:14:53,521 INFO L226 Difference]: Without dead ends: 75497 [2019-12-07 14:14:53,533 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-12-07 14:14:53,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75497 states. [2019-12-07 14:14:54,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75497 to 55733. [2019-12-07 14:14:54,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55733 states. [2019-12-07 14:14:54,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55733 states to 55733 states and 77778 transitions. [2019-12-07 14:14:54,292 INFO L78 Accepts]: Start accepts. Automaton has 55733 states and 77778 transitions. Word has length 73 [2019-12-07 14:14:54,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:54,292 INFO L462 AbstractCegarLoop]: Abstraction has 55733 states and 77778 transitions. [2019-12-07 14:14:54,292 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-12-07 14:14:54,292 INFO L276 IsEmpty]: Start isEmpty. Operand 55733 states and 77778 transitions. [2019-12-07 14:14:54,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-12-07 14:14:54,297 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:54,298 INFO L410 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 1, 1] [2019-12-07 14:14:54,498 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:54,498 INFO L410 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:54,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:54,499 INFO L82 PathProgramCache]: Analyzing trace with hash 1519696454, now seen corresponding path program 10 times [2019-12-07 14:14:54,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:54,500 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105292301] [2019-12-07 14:14:54,500 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:54,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:54,551 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2019-12-07 14:14:54,552 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105292301] [2019-12-07 14:14:54,552 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056581639] [2019-12-07 14:14:54,552 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:54,577 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-12-07 14:14:54,578 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 14:14:54,578 INFO L264 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 13 conjunts are in the unsatisfiable core [2019-12-07 14:14:54,579 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:54,690 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 375 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:54,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 14:14:54,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [3] total 15 [2019-12-07 14:14:54,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144310321] [2019-12-07 14:14:54,691 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-12-07 14:14:54,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:54,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-12-07 14:14:54,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2019-12-07 14:14:54,692 INFO L87 Difference]: Start difference. First operand 55733 states and 77778 transitions. Second operand 13 states. [2019-12-07 14:14:55,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:55,026 INFO L93 Difference]: Finished difference Result 74113 states and 102475 transitions. [2019-12-07 14:14:55,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 14:14:55,027 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 77 [2019-12-07 14:14:55,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:55,028 INFO L225 Difference]: With dead ends: 74113 [2019-12-07 14:14:55,029 INFO L226 Difference]: Without dead ends: 1343 [2019-12-07 14:14:55,077 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2019-12-07 14:14:55,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2019-12-07 14:14:55,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 585. [2019-12-07 14:14:55,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2019-12-07 14:14:55,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 700 transitions. [2019-12-07 14:14:55,092 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 700 transitions. Word has length 77 [2019-12-07 14:14:55,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:55,092 INFO L462 AbstractCegarLoop]: Abstraction has 585 states and 700 transitions. [2019-12-07 14:14:55,092 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-12-07 14:14:55,092 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 700 transitions. [2019-12-07 14:14:55,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-12-07 14:14:55,093 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:55,094 INFO L410 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 1, 1] [2019-12-07 14:14:55,294 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:55,295 INFO L410 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:55,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:55,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1093517585, now seen corresponding path program 8 times [2019-12-07 14:14:55,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:55,297 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123379617] [2019-12-07 14:14:55,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:55,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:55,388 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:55,388 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123379617] [2019-12-07 14:14:55,388 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936032072] [2019-12-07 14:14:55,388 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:55,518 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 14:14:55,518 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 14:14:55,519 INFO L264 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 14:14:55,519 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:55,527 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:55,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:55,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2019-12-07 14:14:55,528 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778629113] [2019-12-07 14:14:55,528 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-12-07 14:14:55,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:55,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-12-07 14:14:55,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-12-07 14:14:55,528 INFO L87 Difference]: Start difference. First operand 585 states and 700 transitions. Second operand 11 states. [2019-12-07 14:14:55,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:55,563 INFO L93 Difference]: Finished difference Result 701 states and 822 transitions. [2019-12-07 14:14:55,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-07 14:14:55,563 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 81 [2019-12-07 14:14:55,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:55,563 INFO L225 Difference]: With dead ends: 701 [2019-12-07 14:14:55,564 INFO L226 Difference]: Without dead ends: 587 [2019-12-07 14:14:55,564 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-12-07 14:14:55,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2019-12-07 14:14:55,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 481. [2019-12-07 14:14:55,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2019-12-07 14:14:55,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 563 transitions. [2019-12-07 14:14:55,570 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 563 transitions. Word has length 81 [2019-12-07 14:14:55,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:55,570 INFO L462 AbstractCegarLoop]: Abstraction has 481 states and 563 transitions. [2019-12-07 14:14:55,570 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-12-07 14:14:55,570 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 563 transitions. [2019-12-07 14:14:55,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-12-07 14:14:55,570 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:55,571 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 1, 1] [2019-12-07 14:14:55,771 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:55,771 INFO L410 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:55,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:55,772 INFO L82 PathProgramCache]: Analyzing trace with hash -944170313, now seen corresponding path program 7 times [2019-12-07 14:14:55,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:55,773 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772582328] [2019-12-07 14:14:55,773 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:55,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:55,866 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:55,866 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772582328] [2019-12-07 14:14:55,866 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856567077] [2019-12-07 14:14:55,866 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:55,890 INFO L264 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 14:14:55,891 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:55,901 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:55,901 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:55,901 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2019-12-07 14:14:55,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832890883] [2019-12-07 14:14:55,901 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 14:14:55,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:55,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 14:14:55,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-12-07 14:14:55,902 INFO L87 Difference]: Start difference. First operand 481 states and 563 transitions. Second operand 10 states. [2019-12-07 14:14:55,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:55,939 INFO L93 Difference]: Finished difference Result 546 states and 639 transitions. [2019-12-07 14:14:55,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 14:14:55,939 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2019-12-07 14:14:55,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:55,940 INFO L225 Difference]: With dead ends: 546 [2019-12-07 14:14:55,940 INFO L226 Difference]: Without dead ends: 379 [2019-12-07 14:14:55,940 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-12-07 14:14:55,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2019-12-07 14:14:55,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2019-12-07 14:14:55,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2019-12-07 14:14:55,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 417 transitions. [2019-12-07 14:14:55,945 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 417 transitions. Word has length 81 [2019-12-07 14:14:55,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:55,945 INFO L462 AbstractCegarLoop]: Abstraction has 379 states and 417 transitions. [2019-12-07 14:14:55,945 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 14:14:55,945 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 417 transitions. [2019-12-07 14:14:55,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-12-07 14:14:55,945 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:55,946 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 1, 1] [2019-12-07 14:14:56,146 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:56,146 INFO L410 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:56,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:56,146 INFO L82 PathProgramCache]: Analyzing trace with hash -2010450365, now seen corresponding path program 9 times [2019-12-07 14:14:56,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:56,146 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035754074] [2019-12-07 14:14:56,146 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:56,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:56,210 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:56,210 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035754074] [2019-12-07 14:14:56,210 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977691714] [2019-12-07 14:14:56,210 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:56,237 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2019-12-07 14:14:56,237 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 14:14:56,238 INFO L264 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 14:14:56,238 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:56,249 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:56,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:56,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2019-12-07 14:14:56,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731733031] [2019-12-07 14:14:56,249 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 14:14:56,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:56,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 14:14:56,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-12-07 14:14:56,250 INFO L87 Difference]: Start difference. First operand 379 states and 417 transitions. Second operand 12 states. [2019-12-07 14:14:56,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:56,271 INFO L93 Difference]: Finished difference Result 464 states and 501 transitions. [2019-12-07 14:14:56,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-07 14:14:56,271 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 81 [2019-12-07 14:14:56,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:56,272 INFO L225 Difference]: With dead ends: 464 [2019-12-07 14:14:56,272 INFO L226 Difference]: Without dead ends: 397 [2019-12-07 14:14:56,272 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-12-07 14:14:56,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2019-12-07 14:14:56,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 306. [2019-12-07 14:14:56,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2019-12-07 14:14:56,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 344 transitions. [2019-12-07 14:14:56,276 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 344 transitions. Word has length 81 [2019-12-07 14:14:56,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:56,276 INFO L462 AbstractCegarLoop]: Abstraction has 306 states and 344 transitions. [2019-12-07 14:14:56,276 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 14:14:56,276 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 344 transitions. [2019-12-07 14:14:56,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2019-12-07 14:14:56,276 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:56,276 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 1, 1] [2019-12-07 14:14:56,477 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:56,477 INFO L410 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:56,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:56,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1856106743, now seen corresponding path program 9 times [2019-12-07 14:14:56,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:56,479 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51780442] [2019-12-07 14:14:56,479 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:56,544 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:56,545 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51780442] [2019-12-07 14:14:56,545 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972784660] [2019-12-07 14:14:56,545 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:56,575 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2019-12-07 14:14:56,575 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 14:14:56,576 INFO L264 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 14:14:56,576 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:56,586 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:56,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:56,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2019-12-07 14:14:56,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730105701] [2019-12-07 14:14:56,586 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 14:14:56,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:56,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 14:14:56,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-12-07 14:14:56,587 INFO L87 Difference]: Start difference. First operand 306 states and 344 transitions. Second operand 12 states. [2019-12-07 14:14:56,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:56,611 INFO L93 Difference]: Finished difference Result 319 states and 357 transitions. [2019-12-07 14:14:56,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-07 14:14:56,612 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 90 [2019-12-07 14:14:56,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:56,612 INFO L225 Difference]: With dead ends: 319 [2019-12-07 14:14:56,612 INFO L226 Difference]: Without dead ends: 242 [2019-12-07 14:14:56,612 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-12-07 14:14:56,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2019-12-07 14:14:56,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 222. [2019-12-07 14:14:56,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2019-12-07 14:14:56,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 260 transitions. [2019-12-07 14:14:56,615 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 260 transitions. Word has length 90 [2019-12-07 14:14:56,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:56,615 INFO L462 AbstractCegarLoop]: Abstraction has 222 states and 260 transitions. [2019-12-07 14:14:56,615 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 14:14:56,615 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 260 transitions. [2019-12-07 14:14:56,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-12-07 14:14:56,616 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:56,616 INFO L410 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 1, 1] [2019-12-07 14:14:56,816 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:56,817 INFO L410 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:56,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:56,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1359938858, now seen corresponding path program 8 times [2019-12-07 14:14:56,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:56,818 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288232937] [2019-12-07 14:14:56,818 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:56,908 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:56,908 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288232937] [2019-12-07 14:14:56,908 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359840810] [2019-12-07 14:14:56,908 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:56,933 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 14:14:56,933 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 14:14:56,934 INFO L264 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 14:14:56,934 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:56,946 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:56,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:56,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2019-12-07 14:14:56,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620078387] [2019-12-07 14:14:56,947 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-12-07 14:14:56,947 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:56,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-12-07 14:14:56,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-12-07 14:14:56,947 INFO L87 Difference]: Start difference. First operand 222 states and 260 transitions. Second operand 11 states. [2019-12-07 14:14:56,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:56,970 INFO L93 Difference]: Finished difference Result 243 states and 280 transitions. [2019-12-07 14:14:56,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-07 14:14:56,971 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 91 [2019-12-07 14:14:56,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:56,971 INFO L225 Difference]: With dead ends: 243 [2019-12-07 14:14:56,971 INFO L226 Difference]: Without dead ends: 102 [2019-12-07 14:14:56,971 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-12-07 14:14:56,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2019-12-07 14:14:56,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2019-12-07 14:14:56,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-12-07 14:14:56,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 101 transitions. [2019-12-07 14:14:56,973 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 101 transitions. Word has length 91 [2019-12-07 14:14:56,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:56,973 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 101 transitions. [2019-12-07 14:14:56,973 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-12-07 14:14:56,973 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 101 transitions. [2019-12-07 14:14:56,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-12-07 14:14:56,973 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:14:56,973 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 1, 1] [2019-12-07 14:14:57,174 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:57,174 INFO L410 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:14:57,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:14:57,174 INFO L82 PathProgramCache]: Analyzing trace with hash -498811939, now seen corresponding path program 9 times [2019-12-07 14:14:57,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:14:57,174 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833191381] [2019-12-07 14:14:57,174 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:14:57,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:14:57,251 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:57,251 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833191381] [2019-12-07 14:14:57,251 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527296735] [2019-12-07 14:14:57,251 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:57,282 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2019-12-07 14:14:57,282 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 14:14:57,283 INFO L264 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 14:14:57,284 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:14:57,301 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:14:57,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:14:57,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2019-12-07 14:14:57,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818411314] [2019-12-07 14:14:57,302 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 14:14:57,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:14:57,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 14:14:57,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-12-07 14:14:57,302 INFO L87 Difference]: Start difference. First operand 102 states and 101 transitions. Second operand 12 states. [2019-12-07 14:14:57,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:14:57,319 INFO L93 Difference]: Finished difference Result 102 states and 101 transitions. [2019-12-07 14:14:57,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-07 14:14:57,319 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 101 [2019-12-07 14:14:57,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:14:57,319 INFO L225 Difference]: With dead ends: 102 [2019-12-07 14:14:57,319 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 14:14:57,320 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-12-07 14:14:57,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 14:14:57,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 14:14:57,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 14:14:57,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 14:14:57,320 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 101 [2019-12-07 14:14:57,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:14:57,320 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:14:57,320 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 14:14:57,320 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 14:14:57,320 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 14:14:57,521 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:14:57,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 14:15:16,255 WARN L192 SmtUtils]: Spent 18.72 s on a formula simplification. DAG size of input: 2170 DAG size of output: 1834 [2019-12-07 14:16:14,973 WARN L192 SmtUtils]: Spent 58.70 s on a formula simplification. DAG size of input: 1797 DAG size of output: 328 [2019-12-07 14:16:14,978 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2019-12-07 14:16:14,978 INFO L246 CegarLoopResult]: For program point L27(lines 27 31) no Hoare annotation was computed. [2019-12-07 14:16:14,978 INFO L246 CegarLoopResult]: For program point L23(lines 23 31) no Hoare annotation was computed. [2019-12-07 14:16:14,978 INFO L246 CegarLoopResult]: For program point L19-2(lines 19 33) no Hoare annotation was computed. [2019-12-07 14:16:14,978 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2019-12-07 14:16:14,978 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-12-07 14:16:14,978 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 14:16:14,978 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2019-12-07 14:16:14,978 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 14:16:14,979 INFO L246 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2019-12-07 14:16:14,979 INFO L246 CegarLoopResult]: For program point L28-1(line 28) no Hoare annotation was computed. [2019-12-07 14:16:14,979 INFO L246 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2019-12-07 14:16:14,979 INFO L246 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2019-12-07 14:16:14,979 INFO L246 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2019-12-07 14:16:14,979 INFO L246 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2019-12-07 14:16:14,979 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2019-12-07 14:16:14,979 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-12-07 14:16:14,979 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 14:16:14,979 INFO L246 CegarLoopResult]: For program point L29(lines 29 31) no Hoare annotation was computed. [2019-12-07 14:16:14,979 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2019-12-07 14:16:14,979 INFO L246 CegarLoopResult]: For program point L25(lines 25 31) no Hoare annotation was computed. [2019-12-07 14:16:14,979 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2019-12-07 14:16:14,980 INFO L249 CegarLoopResult]: At program point L34(lines 13 35) the Hoare annotation is: true [2019-12-07 14:16:14,980 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2019-12-07 14:16:14,980 INFO L246 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2019-12-07 14:16:14,980 INFO L246 CegarLoopResult]: For program point L30-1(line 30) no Hoare annotation was computed. [2019-12-07 14:16:14,980 INFO L246 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2019-12-07 14:16:14,980 INFO L246 CegarLoopResult]: For program point L26-1(line 26) no Hoare annotation was computed. [2019-12-07 14:16:14,980 INFO L246 CegarLoopResult]: For program point L22(lines 22 32) no Hoare annotation was computed. [2019-12-07 14:16:14,982 INFO L242 CegarLoopResult]: At program point L22-1(lines 19 33) the Hoare annotation is: (let ((.cse14 (<= 0 (+ ULTIMATE.start_main_~x~0 2))) (.cse42 (<= ULTIMATE.start_main_~x~0 2)) (.cse32 (<= 9 ULTIMATE.start_main_~i~0)) (.cse12 (<= 0 ULTIMATE.start_main_~y~0)) (.cse9 (<= ULTIMATE.start_main_~x~0 1)) (.cse11 (<= 0 ULTIMATE.start_main_~x~0)) (.cse19 (<= 0 (+ ULTIMATE.start_main_~x~0 1))) (.cse0 (<= ULTIMATE.start_main_~y~0 0)) (.cse1 (<= ULTIMATE.start_main_~N~0 10)) (.cse2 (<= ULTIMATE.start_main_~x~0 0)) (.cse3 (<= 8 ULTIMATE.start_main_~i~0)) (.cse48 (<= 0 (+ ULTIMATE.start_main_~y~0 2147483648)))) (let ((.cse46 (or (and .cse0 .cse1 .cse9 .cse3 .cse48 .cse11) (and .cse19 .cse0 .cse1 .cse2 .cse3 .cse48))) (.cse18 (<= 1 ULTIMATE.start_main_~i~0)) (.cse39 (<= ULTIMATE.start_main_~x~0 9)) (.cse50 (or (and .cse32 .cse1 .cse9 .cse11 .cse12) (and .cse32 .cse19 .cse1 .cse2 .cse12))) (.cse51 (<= ULTIMATE.start_main_~y~0 8)) (.cse41 (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648))) (.cse23 (<= 0 (+ ULTIMATE.start_main_~x~0 5))) (.cse49 (or (and .cse32 .cse0 .cse1 .cse14 .cse2 .cse48) (and .cse32 .cse0 .cse1 .cse48 .cse42 .cse11))) (.cse47 (<= 0 (+ ULTIMATE.start_main_~y~0 7))) (.cse29 (<= 4 ULTIMATE.start_main_~i~0)) (.cse40 (<= ULTIMATE.start_main_~y~0 5)) (.cse37 (<= ULTIMATE.start_main_~x~0 3)) (.cse34 (<= 3 ULTIMATE.start_main_~i~0)) (.cse36 (<= 0 (+ ULTIMATE.start_main_~x~0 8))) (.cse35 (<= 0 (+ ULTIMATE.start_main_~y~0 3))) (.cse17 (<= ULTIMATE.start_main_~x~0 6)) (.cse16 (<= 0 (+ ULTIMATE.start_main_~y~0 4))) (.cse31 (<= ULTIMATE.start_main_~x~0 5)) (.cse26 (<= ULTIMATE.start_main_~x~0 4)) (.cse6 (<= 0 (+ ULTIMATE.start_main_~y~0 2))) (.cse25 (<= 0 (+ ULTIMATE.start_main_~y~0 6))) (.cse20 (<= ULTIMATE.start_main_~y~0 1)) (.cse44 (<= ULTIMATE.start_main_~x~0 8)) (.cse22 (<= 6 ULTIMATE.start_main_~i~0)) (.cse27 (<= ULTIMATE.start_main_~y~0 6)) (.cse7 (<= 0 (+ ULTIMATE.start_main_~x~0 6))) (.cse13 (<= 2 ULTIMATE.start_main_~i~0)) (.cse33 (<= 0 (+ ULTIMATE.start_main_~y~0 5))) (.cse30 (<= 7 ULTIMATE.start_main_~i~0)) (.cse45 (<= ULTIMATE.start_main_~y~0 7)) (.cse24 (<= ULTIMATE.start_main_~y~0 3)) (.cse4 (<= 0 (+ ULTIMATE.start_main_~x~0 7))) (.cse15 (<= 10 ULTIMATE.start_main_~i~0)) (.cse21 (<= 0 (+ ULTIMATE.start_main_~x~0 4))) (.cse8 (<= ULTIMATE.start_main_~y~0 4)) (.cse43 (<= ULTIMATE.start_main_~y~0 2)) (.cse28 (<= 0 (+ ULTIMATE.start_main_~x~0 3))) (.cse10 (<= 5 ULTIMATE.start_main_~i~0)) (.cse38 (<= ULTIMATE.start_main_~x~0 7)) (.cse5 (<= 0 (+ ULTIMATE.start_main_~y~0 1)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse3 .cse6 .cse7) (and .cse8 .cse1 .cse9 .cse10 .cse11 .cse12) (and .cse0 .cse1 .cse13 .cse14 .cse2 .cse12) (and .cse15 .cse16 .cse0 .cse1 .cse11 .cse17) (and (or (and .cse18 .cse0 .cse1 .cse9 .cse11) (and .cse18 .cse19 .cse0 .cse1 .cse2) (and .cse18 .cse20 .cse1 .cse2 .cse11)) .cse12) (and .cse21 .cse0 .cse1 .cse2 .cse6 .cse22) (and .cse23 .cse1 .cse24 .cse2 .cse3 .cse12) (and .cse0 .cse25 .cse1 .cse2 .cse22 .cse11) (and .cse15 .cse26 .cse1 .cse11 .cse12 .cse27) (and .cse20 .cse26 .cse1 .cse10 .cse11 .cse12) (and .cse1 .cse2 .cse22 .cse12 .cse11 .cse27) (and .cse0 .cse1 .cse2 .cse6 .cse28 .cse10) (and .cse20 (or (and .cse19 .cse1 .cse13 .cse2 .cse12) (and .cse1 .cse9 .cse13 .cse11 .cse12))) (and .cse20 .cse1 .cse2 .cse28 .cse29 .cse12) (and .cse0 .cse1 .cse30 .cse6 .cse31 .cse11) (and .cse32 .cse16 .cse0 .cse23 .cse1 .cse2) (and .cse32 .cse1 .cse24 .cse11 .cse12 .cse17) (and .cse32 .cse21 .cse0 .cse1 .cse2 .cse33) (and .cse34 .cse1 .cse24 .cse2 .cse11 .cse12) (and .cse0 .cse23 .cse1 .cse2 .cse3 .cse35) (and .cse0 .cse1 .cse10 .cse31 .cse11 .cse12) (and .cse0 .cse1 .cse2 .cse11 .cse12 (<= 0 ULTIMATE.start_main_~i~0)) (and .cse32 .cse8 .cse1 .cse31 .cse11 .cse12) (and .cse32 .cse0 .cse1 .cse2 .cse36 .cse5) (and .cse37 .cse8 .cse1 .cse30 .cse11 .cse12) (and .cse0 .cse23 .cse1 .cse2 .cse10 .cse12) (and .cse20 .cse34 .cse1 .cse14 .cse2 .cse12) (and .cse0 .cse34 .cse1 .cse2 .cse28 .cse12) (and .cse0 .cse1 .cse38 .cse30 .cse11 .cse12) (and .cse32 .cse0 .cse39 .cse1 .cse11 .cse12) (and .cse21 .cse0 .cse1 .cse2 .cse10 .cse5) (and .cse0 .cse1 .cse30 .cse5 .cse11 .cse17) (and .cse32 .cse26 .cse0 .cse1 .cse33 .cse11) (and .cse0 .cse25 .cse1 .cse30 .cse9 .cse11) (and .cse40 .cse1 .cse2 .cse3 .cse28 .cse12) (and .cse15 .cse21 .cse0 .cse25 .cse1 .cse2) (and .cse8 .cse1 .cse2 .cse29 .cse11 .cse12) (and .cse15 .cse41 .cse0 .cse1 .cse2 .cse5) (and .cse40 .cse15 .cse1 .cse31 .cse11 .cse12) (and .cse0 (or (and .cse19 .cse1 .cse2 .cse22) (and .cse1 .cse9 .cse22 .cse11)) .cse33) (and .cse20 .cse1 .cse31 .cse22 .cse11 .cse12) (and .cse26 .cse0 .cse1 .cse29 .cse11 .cse12) (and .cse8 .cse1 .cse30 .cse2 .cse28 .cse12) (and .cse19 .cse1 .cse24 .cse2 .cse29 .cse12) (and .cse20 .cse1 .cse30 .cse2 .cse7 .cse12) (and .cse0 .cse1 .cse30 .cse2 .cse7 .cse5) (and .cse15 .cse26 .cse0 .cse25 .cse1 .cse11) (and .cse0 .cse1 .cse6 .cse42 .cse29 .cse11) (and .cse35 (or (and .cse0 .cse1 .cse9 .cse29 .cse11) (and .cse19 .cse0 .cse1 .cse2 .cse29))) (and .cse21 .cse16 .cse0 .cse1 .cse2 .cse3) (and .cse15 .cse1 .cse42 .cse11 .cse12) (and .cse15 .cse0 .cse1 .cse2 .cse6 .cse36) (and .cse1 .cse24 .cse42 .cse10 .cse11 .cse12) (and .cse37 .cse32 .cse1 .cse11 .cse12 .cse27) (and .cse1 .cse24 .cse2 .cse28 .cse22 .cse12) (and .cse15 .cse0 .cse1 .cse11 .cse12) (and .cse26 .cse16 .cse0 .cse1 .cse3 .cse11) (and .cse32 .cse0 .cse1 .cse2 .cse6 .cse4) (and .cse40 .cse19 .cse1 .cse2 .cse22 .cse12) (and .cse0 .cse1 .cse42 .cse10 .cse35 .cse11) (and (or (and .cse19 .cse1 .cse30 .cse2 .cse12) (and .cse1 .cse30 .cse9 .cse11 .cse12)) .cse27) (and .cse43 .cse26 .cse1 .cse22 .cse11 .cse12) (and .cse32 .cse0 .cse38 .cse1 .cse6 .cse11) (and .cse40 .cse1 .cse9 .cse22 .cse11 .cse12) (and .cse26 .cse0 .cse1 .cse10 .cse5 .cse11) (and .cse0 .cse1 .cse2 .cse28 .cse35 .cse22) (and .cse15 .cse44 .cse43 .cse1 .cse11 .cse12) (and .cse32 .cse1 .cse14 .cse2 .cse12 .cse45) (and .cse8 .cse1 .cse14 .cse2 .cse22 .cse12) (and .cse0 .cse1 .cse2 .cse28 .cse29 .cse5) (and .cse0 .cse34 .cse1 .cse42 .cse5 .cse11) (and .cse15 .cse1 .cse2 .cse28 .cse12 .cse45) (and .cse32 .cse20 .cse1 .cse2 .cse36 .cse12) (and .cse32 .cse0 .cse1 .cse2 .cse35 .cse7) (and .cse15 .cse20 .cse1 .cse39 .cse11 .cse12) (and .cse1 .cse14 .cse2 .cse3 .cse12 .cse27) (and .cse16 .cse0 .cse1 .cse42 .cse22 .cse11) (and .cse26 .cse0 .cse1 .cse30 .cse35 .cse11) (and (or (and .cse0 .cse1 .cse30 .cse14 .cse2) (and .cse0 .cse1 .cse30 .cse42 .cse11)) .cse33) (and (<= 0 (+ ULTIMATE.start_main_~y~0 8)) .cse46 .cse11) (and .cse19 .cse0 .cse25 .cse1 .cse30 .cse2) (and .cse15 .cse38 .cse1 .cse24 .cse11 .cse12) (and .cse16 .cse0 .cse1 .cse2 .cse29 .cse11) (and .cse0 (or (and .cse19 .cse1 .cse13 .cse2) (and .cse1 .cse9 .cse13 .cse11)) .cse5) (and .cse37 .cse40 .cse1 .cse3 .cse11 .cse12) (and .cse37 .cse43 .cse1 .cse10 .cse11 .cse12) (and .cse15 .cse16 .cse0 .cse1 .cse2 .cse7) (and .cse0 .cse23 .cse1 .cse2 .cse22 .cse5) (and .cse1 .cse24 .cse9 .cse29 .cse11 .cse12) (and .cse47 .cse46) (and .cse21 .cse0 .cse1 .cse30 .cse2 .cse35) (and .cse20 .cse38 .cse1 .cse3 .cse11 .cse12) (and .cse37 .cse15 .cse0 .cse1 .cse48 .cse11) (and .cse0 .cse23 .cse1 .cse30 .cse2 .cse6) (and .cse37 .cse0 .cse1 .cse3 .cse33 .cse11) (and .cse43 .cse23 .cse1 .cse30 .cse2 .cse12) (and .cse0 .cse25 .cse1 .cse14 .cse2 .cse3) (and .cse32 .cse40 .cse21 .cse1 .cse2 .cse12) (and .cse32 .cse40 .cse26 .cse1 .cse11 .cse12) (and .cse40 .cse1 .cse30 .cse14 .cse2 .cse12) (and .cse21 .cse0 .cse1 .cse2 .cse29 .cse12) (and .cse20 .cse1 .cse30 .cse11 .cse12 .cse17) (and .cse16 .cse0 .cse1 .cse30 .cse2 .cse28) (and .cse18 .cse0 .cse1 .cse2 .cse5 .cse11) (and (<= 0 (+ ULTIMATE.start_main_~y~0 9)) .cse19 .cse49) (and .cse0 .cse1 .cse14 .cse2 .cse6 .cse29) (and .cse43 .cse19 .cse34 .cse1 .cse2 .cse12) (and .cse0 .cse1 .cse13 .cse42 .cse11 .cse12) (and .cse15 .cse0 .cse1 .cse2 .cse48 .cse28) (and .cse37 .cse0 .cse1 .cse29 .cse5 .cse11) (and .cse15 .cse0 .cse1 .cse39 .cse5 .cse11) (and (<= ULTIMATE.start_main_~y~0 9) .cse50 .cse11) (and .cse0 .cse1 .cse31 .cse22 .cse5 .cse11) (and .cse32 .cse43 .cse38 .cse1 .cse11 .cse12) (and .cse43 .cse1 .cse42 .cse29 .cse11 .cse12) (and .cse20 .cse1 .cse2 .cse3 .cse4 .cse12) (and .cse15 .cse0 .cse1 .cse2 .cse35 .cse4) (and .cse8 .cse1 .cse42 .cse22 .cse11 .cse12) (and .cse37 .cse15 .cse1 .cse11 .cse12 .cse45) (and .cse0 .cse1 .cse13 .cse6 .cse2 .cse11) (and .cse15 .cse0 .cse1 .cse31 .cse33 .cse11) (and .cse19 .cse8 .cse1 .cse2 .cse10 .cse12) (and .cse0 .cse1 .cse3 .cse35 .cse31 .cse11) (and .cse26 .cse1 .cse24 .cse30 .cse11 .cse12) (and .cse26 .cse8 .cse1 .cse3 .cse11 .cse12) (and .cse44 .cse0 .cse1 .cse3 .cse11 .cse12) (and .cse15 .cse0 .cse38 .cse1 .cse35 .cse11) (and .cse50 .cse51) (and .cse0 .cse34 .cse1 .cse2 .cse35 .cse11) (and .cse16 .cse0 .cse1 .cse9 .cse10 .cse11) (and .cse37 .cse20 .cse1 .cse29 .cse11 .cse12) (and .cse15 .cse44 .cse0 .cse1 .cse6 .cse11) (and .cse43 .cse1 .cse3 .cse11 .cse12 .cse17) (and .cse40 .cse15 .cse23 .cse1 .cse2 .cse12) (and .cse0 .cse1 .cse30 .cse2 .cse47 .cse11) (and .cse1 .cse3 .cse2 .cse51 .cse12 .cse11) (and .cse32 .cse8 .cse23 .cse1 .cse2 .cse12) (and .cse37 .cse0 .cse1 .cse35 .cse22 .cse11) (and .cse0 .cse1 .cse2 .cse3 .cse36 .cse12) (and .cse21 .cse1 .cse24 .cse30 .cse2 .cse12) (and .cse20 .cse23 .cse1 .cse2 .cse22 .cse12) (and .cse15 .cse20 .cse41 .cse1 .cse2 .cse12) (and .cse37 .cse16 .cse0 .cse1 .cse30 .cse11) (and .cse40 .cse1 .cse2 .cse10 .cse11 .cse12) (and .cse0 .cse6 (or (and .cse19 .cse34 .cse1 .cse2) (and .cse34 .cse1 .cse9 .cse11))) (and .cse0 .cse1 .cse2 .cse10 .cse33 .cse11) (and .cse37 .cse0 .cse34 .cse1 .cse11 .cse12) (and .cse32 .cse0 .cse1 .cse2 (<= 0 (+ ULTIMATE.start_main_~x~0 9)) .cse12) (and .cse15 .cse0 .cse23 .cse1 .cse2 .cse33) (and .cse16 .cse0 .cse1 .cse14 .cse2 .cse22) (and .cse43 .cse34 .cse1 .cse9 .cse11 .cse12) (and .cse49 .cse47) (and .cse0 .cse34 .cse1 .cse14 .cse2 .cse5) (and .cse43 .cse1 .cse14 .cse2 .cse29 .cse12) (and .cse19 .cse16 .cse0 .cse1 .cse2 .cse10) (and .cse0 .cse1 .cse3 .cse6 .cse11 .cse17) (and .cse43 .cse1 .cse2 .cse3 .cse7 .cse12) (and .cse32 .cse43 .cse1 .cse2 .cse4 .cse12) (and .cse20 .cse21 .cse1 .cse2 .cse10 .cse12) (and .cse32 .cse44 .cse0 .cse1 .cse5 .cse11) (and .cse32 .cse0 .cse25 .cse1 .cse2 .cse28) (and .cse37 .cse32 .cse0 .cse25 .cse1 .cse11) (and .cse40 .cse1 .cse30 .cse42 .cse11 .cse12) (and .cse1 .cse24 .cse3 .cse31 .cse11 .cse12) (and .cse43 .cse21 .cse1 .cse2 .cse22 .cse12) (and .cse37 .cse1 .cse24 .cse22 .cse11 .cse12) (and (or (and .cse1 .cse9 .cse3 .cse11 .cse12) (and .cse19 .cse1 .cse2 .cse3 .cse12)) .cse45) (and .cse15 .cse8 .cse1 .cse11 .cse12 .cse17) (and .cse37 .cse0 .cse1 .cse6 .cse10 .cse11) (and .cse20 .cse34 .cse1 .cse42 .cse11 .cse12) (and .cse0 .cse1 .cse14 .cse2 .cse10 .cse35) (and .cse15 .cse43 .cse1 .cse2 .cse36 .cse12) (and .cse43 .cse1 .cse30 .cse31 .cse11 .cse12) (and .cse0 .cse1 .cse22 .cse11 .cse12 .cse17) (and .cse15 .cse8 .cse1 .cse2 .cse7 .cse12) (and .cse15 .cse21 .cse1 .cse2 .cse12 .cse27) (and .cse32 .cse0 .cse1 .cse35 .cse11 .cse17) (and .cse32 .cse16 .cse0 .cse1 .cse31 .cse11) (and .cse26 .cse0 .cse1 .cse6 .cse22 .cse11) (and .cse32 .cse1 .cse2 .cse28 .cse12 .cse27) (and .cse0 .cse25 .cse1 .cse3 .cse42 .cse11) (and .cse32 .cse20 .cse44 .cse1 .cse11 .cse12) (and .cse0 .cse1 .cse2 .cse7 .cse22 .cse12) (and .cse1 .cse3 .cse42 .cse11 .cse12 .cse27) (and .cse32 .cse1 .cse24 .cse2 .cse7 .cse12) (and .cse0 .cse1 .cse30 .cse2 .cse4 .cse12) (and .cse43 .cse1 .cse13 .cse2 .cse11 .cse12) (and .cse0 .cse1 .cse2 .cse3 .cse28 .cse33) (and .cse1 .cse24 .cse14 .cse2 .cse10 .cse12) (and .cse1 .cse30 .cse2 .cse12 .cse11 .cse45) (and .cse32 .cse1 .cse42 .cse11 .cse12 .cse45) (and .cse15 .cse1 .cse24 .cse2 .cse4 .cse12) (and .cse15 .cse1 .cse14 .cse2 .cse12) (and .cse21 .cse8 .cse1 .cse2 .cse3 .cse12) (and .cse43 .cse1 .cse2 .cse28 .cse10 .cse12) (and .cse0 .cse38 .cse1 .cse3 .cse5 .cse11)))) [2019-12-07 14:16:14,983 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2019-12-07 14:16:15,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 02:16:15 BoogieIcfgContainer [2019-12-07 14:16:15,037 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 14:16:15,038 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:16:15,038 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:16:15,038 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:16:15,039 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:14:32" (3/4) ... [2019-12-07 14:16:15,041 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 14:16:15,051 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 14:16:15,051 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 14:16:15,091 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5fe532a4-a740-43a8-9168-8529134a9915/bin/uautomizer/witness.graphml [2019-12-07 14:16:15,091 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:16:15,092 INFO L168 Benchmark]: Toolchain (without parser) took 102596.90 ms. Allocated memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: 1.3 GB). Free memory was 946.2 MB in the beginning and 882.6 MB in the end (delta: 63.7 MB). Peak memory consumption was 1.4 GB. Max. memory is 11.5 GB. [2019-12-07 14:16:15,092 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:16:15,093 INFO L168 Benchmark]: CACSL2BoogieTranslator took 174.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -157.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 14:16:15,093 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.02 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:16:15,093 INFO L168 Benchmark]: Boogie Preprocessor took 12.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-07 14:16:15,093 INFO L168 Benchmark]: RCFGBuilder took 164.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. [2019-12-07 14:16:15,094 INFO L168 Benchmark]: TraceAbstraction took 102168.04 ms. Allocated memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: 1.2 GB). Free memory was 1.1 GB in the beginning and 892.4 MB in the end (delta: 191.7 MB). Peak memory consumption was 3.0 GB. Max. memory is 11.5 GB. [2019-12-07 14:16:15,094 INFO L168 Benchmark]: Witness Printer took 53.49 ms. Allocated memory is still 2.3 GB. Free memory was 892.4 MB in the beginning and 882.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2019-12-07 14:16:15,095 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 174.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -157.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.02 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 164.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 102168.04 ms. Allocated memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: 1.2 GB). Free memory was 1.1 GB in the beginning and 892.4 MB in the end (delta: 191.7 MB). Peak memory consumption was 3.0 GB. Max. memory is 11.5 GB. * Witness Printer took 53.49 ms. Allocated memory is still 2.3 GB. Free memory was 892.4 MB in the beginning and 882.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((y <= 0 && N <= 10) && x <= 0) && 8 <= i) && 0 <= x + 7) && 0 <= y + 1) || (((((y <= 0 && N <= 10) && x <= 0) && 8 <= i) && 0 <= y + 2) && 0 <= x + 6)) || (((((y <= 4 && N <= 10) && x <= 1) && 5 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && 2 <= i) && 0 <= x + 2) && x <= 0) && 0 <= y)) || (((((10 <= i && 0 <= y + 4) && y <= 0) && N <= 10) && 0 <= x) && x <= 6)) || (((((((1 <= i && y <= 0) && N <= 10) && x <= 1) && 0 <= x) || ((((1 <= i && 0 <= x + 1) && y <= 0) && N <= 10) && x <= 0)) || ((((1 <= i && y <= 1) && N <= 10) && x <= 0) && 0 <= x)) && 0 <= y)) || (((((0 <= x + 4 && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 2) && 6 <= i)) || (((((0 <= x + 5 && N <= 10) && y <= 3) && x <= 0) && 8 <= i) && 0 <= y)) || (((((y <= 0 && 0 <= y + 6) && N <= 10) && x <= 0) && 6 <= i) && 0 <= x)) || (((((10 <= i && x <= 4) && N <= 10) && 0 <= x) && 0 <= y) && y <= 6)) || (((((y <= 1 && x <= 4) && N <= 10) && 5 <= i) && 0 <= x) && 0 <= y)) || (((((N <= 10 && x <= 0) && 6 <= i) && 0 <= y) && 0 <= x) && y <= 6)) || (((((y <= 0 && N <= 10) && x <= 0) && 0 <= y + 2) && 0 <= x + 3) && 5 <= i)) || (y <= 1 && (((((0 <= x + 1 && N <= 10) && 2 <= i) && x <= 0) && 0 <= y) || ((((N <= 10 && x <= 1) && 2 <= i) && 0 <= x) && 0 <= y)))) || (((((y <= 1 && N <= 10) && x <= 0) && 0 <= x + 3) && 4 <= i) && 0 <= y)) || (((((y <= 0 && N <= 10) && 7 <= i) && 0 <= y + 2) && x <= 5) && 0 <= x)) || (((((9 <= i && 0 <= y + 4) && y <= 0) && 0 <= x + 5) && N <= 10) && x <= 0)) || (((((9 <= i && N <= 10) && y <= 3) && 0 <= x) && 0 <= y) && x <= 6)) || (((((9 <= i && 0 <= x + 4) && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 5)) || (((((3 <= i && N <= 10) && y <= 3) && x <= 0) && 0 <= x) && 0 <= y)) || (((((y <= 0 && 0 <= x + 5) && N <= 10) && x <= 0) && 8 <= i) && 0 <= y + 3)) || (((((y <= 0 && N <= 10) && 5 <= i) && x <= 5) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 0) && 0 <= x) && 0 <= y) && 0 <= i)) || (((((9 <= i && y <= 4) && N <= 10) && x <= 5) && 0 <= x) && 0 <= y)) || (((((9 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= x + 8) && 0 <= y + 1)) || (((((x <= 3 && y <= 4) && N <= 10) && 7 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 0 && 0 <= x + 5) && N <= 10) && x <= 0) && 5 <= i) && 0 <= y)) || (((((y <= 1 && 3 <= i) && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y)) || (((((y <= 0 && 3 <= i) && N <= 10) && x <= 0) && 0 <= x + 3) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 7) && 7 <= i) && 0 <= x) && 0 <= y)) || (((((9 <= i && y <= 0) && x <= 9) && N <= 10) && 0 <= x) && 0 <= y)) || (((((0 <= x + 4 && y <= 0) && N <= 10) && x <= 0) && 5 <= i) && 0 <= y + 1)) || (((((y <= 0 && N <= 10) && 7 <= i) && 0 <= y + 1) && 0 <= x) && x <= 6)) || (((((9 <= i && x <= 4) && y <= 0) && N <= 10) && 0 <= y + 5) && 0 <= x)) || (((((y <= 0 && 0 <= y + 6) && N <= 10) && 7 <= i) && x <= 1) && 0 <= x)) || (((((y <= 5 && N <= 10) && x <= 0) && 8 <= i) && 0 <= x + 3) && 0 <= y)) || (((((10 <= i && 0 <= x + 4) && y <= 0) && 0 <= y + 6) && N <= 10) && x <= 0)) || (((((y <= 4 && N <= 10) && x <= 0) && 4 <= i) && 0 <= x) && 0 <= y)) || (((((10 <= i && 0 <= x + 2147483648) && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 1)) || (((((y <= 5 && 10 <= i) && N <= 10) && x <= 5) && 0 <= x) && 0 <= y)) || ((y <= 0 && ((((0 <= x + 1 && N <= 10) && x <= 0) && 6 <= i) || (((N <= 10 && x <= 1) && 6 <= i) && 0 <= x))) && 0 <= y + 5)) || (((((y <= 1 && N <= 10) && x <= 5) && 6 <= i) && 0 <= x) && 0 <= y)) || (((((x <= 4 && y <= 0) && N <= 10) && 4 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 4 && N <= 10) && 7 <= i) && x <= 0) && 0 <= x + 3) && 0 <= y)) || (((((0 <= x + 1 && N <= 10) && y <= 3) && x <= 0) && 4 <= i) && 0 <= y)) || (((((y <= 1 && N <= 10) && 7 <= i) && x <= 0) && 0 <= x + 6) && 0 <= y)) || (((((y <= 0 && N <= 10) && 7 <= i) && x <= 0) && 0 <= x + 6) && 0 <= y + 1)) || (((((10 <= i && x <= 4) && y <= 0) && 0 <= y + 6) && N <= 10) && 0 <= x)) || (((((y <= 0 && N <= 10) && 0 <= y + 2) && x <= 2) && 4 <= i) && 0 <= x)) || (0 <= y + 3 && (((((y <= 0 && N <= 10) && x <= 1) && 4 <= i) && 0 <= x) || ((((0 <= x + 1 && y <= 0) && N <= 10) && x <= 0) && 4 <= i)))) || (((((0 <= x + 4 && 0 <= y + 4) && y <= 0) && N <= 10) && x <= 0) && 8 <= i)) || ((((10 <= i && N <= 10) && x <= 2) && 0 <= x) && 0 <= y)) || (((((10 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 2) && 0 <= x + 8)) || (((((N <= 10 && y <= 3) && x <= 2) && 5 <= i) && 0 <= x) && 0 <= y)) || (((((x <= 3 && 9 <= i) && N <= 10) && 0 <= x) && 0 <= y) && y <= 6)) || (((((N <= 10 && y <= 3) && x <= 0) && 0 <= x + 3) && 6 <= i) && 0 <= y)) || ((((10 <= i && y <= 0) && N <= 10) && 0 <= x) && 0 <= y)) || (((((x <= 4 && 0 <= y + 4) && y <= 0) && N <= 10) && 8 <= i) && 0 <= x)) || (((((9 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 2) && 0 <= x + 7)) || (((((y <= 5 && 0 <= x + 1) && N <= 10) && x <= 0) && 6 <= i) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 2) && 5 <= i) && 0 <= y + 3) && 0 <= x)) || ((((((0 <= x + 1 && N <= 10) && 7 <= i) && x <= 0) && 0 <= y) || ((((N <= 10 && 7 <= i) && x <= 1) && 0 <= x) && 0 <= y)) && y <= 6)) || (((((y <= 2 && x <= 4) && N <= 10) && 6 <= i) && 0 <= x) && 0 <= y)) || (((((9 <= i && y <= 0) && x <= 7) && N <= 10) && 0 <= y + 2) && 0 <= x)) || (((((y <= 5 && N <= 10) && x <= 1) && 6 <= i) && 0 <= x) && 0 <= y)) || (((((x <= 4 && y <= 0) && N <= 10) && 5 <= i) && 0 <= y + 1) && 0 <= x)) || (((((y <= 0 && N <= 10) && x <= 0) && 0 <= x + 3) && 0 <= y + 3) && 6 <= i)) || (((((10 <= i && x <= 8) && y <= 2) && N <= 10) && 0 <= x) && 0 <= y)) || (((((9 <= i && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y) && y <= 7)) || (((((y <= 4 && N <= 10) && 0 <= x + 2) && x <= 0) && 6 <= i) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 0) && 0 <= x + 3) && 4 <= i) && 0 <= y + 1)) || (((((y <= 0 && 3 <= i) && N <= 10) && x <= 2) && 0 <= y + 1) && 0 <= x)) || (((((10 <= i && N <= 10) && x <= 0) && 0 <= x + 3) && 0 <= y) && y <= 7)) || (((((9 <= i && y <= 1) && N <= 10) && x <= 0) && 0 <= x + 8) && 0 <= y)) || (((((9 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 3) && 0 <= x + 6)) || (((((10 <= i && y <= 1) && N <= 10) && x <= 9) && 0 <= x) && 0 <= y)) || (((((N <= 10 && 0 <= x + 2) && x <= 0) && 8 <= i) && 0 <= y) && y <= 6)) || (((((0 <= y + 4 && y <= 0) && N <= 10) && x <= 2) && 6 <= i) && 0 <= x)) || (((((x <= 4 && y <= 0) && N <= 10) && 7 <= i) && 0 <= y + 3) && 0 <= x)) || ((((((y <= 0 && N <= 10) && 7 <= i) && 0 <= x + 2) && x <= 0) || ((((y <= 0 && N <= 10) && 7 <= i) && x <= 2) && 0 <= x)) && 0 <= y + 5)) || ((0 <= y + 8 && ((((((y <= 0 && N <= 10) && x <= 1) && 8 <= i) && 0 <= y + 2147483648) && 0 <= x) || (((((0 <= x + 1 && y <= 0) && N <= 10) && x <= 0) && 8 <= i) && 0 <= y + 2147483648))) && 0 <= x)) || (((((0 <= x + 1 && y <= 0) && 0 <= y + 6) && N <= 10) && 7 <= i) && x <= 0)) || (((((10 <= i && x <= 7) && N <= 10) && y <= 3) && 0 <= x) && 0 <= y)) || (((((0 <= y + 4 && y <= 0) && N <= 10) && x <= 0) && 4 <= i) && 0 <= x)) || ((y <= 0 && ((((0 <= x + 1 && N <= 10) && 2 <= i) && x <= 0) || (((N <= 10 && x <= 1) && 2 <= i) && 0 <= x))) && 0 <= y + 1)) || (((((x <= 3 && y <= 5) && N <= 10) && 8 <= i) && 0 <= x) && 0 <= y)) || (((((x <= 3 && y <= 2) && N <= 10) && 5 <= i) && 0 <= x) && 0 <= y)) || (((((10 <= i && 0 <= y + 4) && y <= 0) && N <= 10) && x <= 0) && 0 <= x + 6)) || (((((y <= 0 && 0 <= x + 5) && N <= 10) && x <= 0) && 6 <= i) && 0 <= y + 1)) || (((((N <= 10 && y <= 3) && x <= 1) && 4 <= i) && 0 <= x) && 0 <= y)) || (0 <= y + 7 && ((((((y <= 0 && N <= 10) && x <= 1) && 8 <= i) && 0 <= y + 2147483648) && 0 <= x) || (((((0 <= x + 1 && y <= 0) && N <= 10) && x <= 0) && 8 <= i) && 0 <= y + 2147483648)))) || (((((0 <= x + 4 && y <= 0) && N <= 10) && 7 <= i) && x <= 0) && 0 <= y + 3)) || (((((y <= 1 && x <= 7) && N <= 10) && 8 <= i) && 0 <= x) && 0 <= y)) || (((((x <= 3 && 10 <= i) && y <= 0) && N <= 10) && 0 <= y + 2147483648) && 0 <= x)) || (((((y <= 0 && 0 <= x + 5) && N <= 10) && 7 <= i) && x <= 0) && 0 <= y + 2)) || (((((x <= 3 && y <= 0) && N <= 10) && 8 <= i) && 0 <= y + 5) && 0 <= x)) || (((((y <= 2 && 0 <= x + 5) && N <= 10) && 7 <= i) && x <= 0) && 0 <= y)) || (((((y <= 0 && 0 <= y + 6) && N <= 10) && 0 <= x + 2) && x <= 0) && 8 <= i)) || (((((9 <= i && y <= 5) && 0 <= x + 4) && N <= 10) && x <= 0) && 0 <= y)) || (((((9 <= i && y <= 5) && x <= 4) && N <= 10) && 0 <= x) && 0 <= y)) || (((((y <= 5 && N <= 10) && 7 <= i) && 0 <= x + 2) && x <= 0) && 0 <= y)) || (((((0 <= x + 4 && y <= 0) && N <= 10) && x <= 0) && 4 <= i) && 0 <= y)) || (((((y <= 1 && N <= 10) && 7 <= i) && 0 <= x) && 0 <= y) && x <= 6)) || (((((0 <= y + 4 && y <= 0) && N <= 10) && 7 <= i) && x <= 0) && 0 <= x + 3)) || (((((1 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 1) && 0 <= x)) || ((0 <= y + 9 && 0 <= x + 1) && ((((((9 <= i && y <= 0) && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y + 2147483648) || (((((9 <= i && y <= 0) && N <= 10) && 0 <= y + 2147483648) && x <= 2) && 0 <= x)))) || (((((y <= 0 && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y + 2) && 4 <= i)) || (((((y <= 2 && 0 <= x + 1) && 3 <= i) && N <= 10) && x <= 0) && 0 <= y)) || (((((y <= 0 && N <= 10) && 2 <= i) && x <= 2) && 0 <= x) && 0 <= y)) || (((((10 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 2147483648) && 0 <= x + 3)) || (((((x <= 3 && y <= 0) && N <= 10) && 4 <= i) && 0 <= y + 1) && 0 <= x)) || (((((10 <= i && y <= 0) && N <= 10) && x <= 9) && 0 <= y + 1) && 0 <= x)) || ((y <= 9 && (((((9 <= i && N <= 10) && x <= 1) && 0 <= x) && 0 <= y) || ((((9 <= i && 0 <= x + 1) && N <= 10) && x <= 0) && 0 <= y))) && 0 <= x)) || (((((y <= 0 && N <= 10) && x <= 5) && 6 <= i) && 0 <= y + 1) && 0 <= x)) || (((((9 <= i && y <= 2) && x <= 7) && N <= 10) && 0 <= x) && 0 <= y)) || (((((y <= 2 && N <= 10) && x <= 2) && 4 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 1 && N <= 10) && x <= 0) && 8 <= i) && 0 <= x + 7) && 0 <= y)) || (((((10 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 3) && 0 <= x + 7)) || (((((y <= 4 && N <= 10) && x <= 2) && 6 <= i) && 0 <= x) && 0 <= y)) || (((((x <= 3 && 10 <= i) && N <= 10) && 0 <= x) && 0 <= y) && y <= 7)) || (((((y <= 0 && N <= 10) && 2 <= i) && 0 <= y + 2) && x <= 0) && 0 <= x)) || (((((10 <= i && y <= 0) && N <= 10) && x <= 5) && 0 <= y + 5) && 0 <= x)) || (((((0 <= x + 1 && y <= 4) && N <= 10) && x <= 0) && 5 <= i) && 0 <= y)) || (((((y <= 0 && N <= 10) && 8 <= i) && 0 <= y + 3) && x <= 5) && 0 <= x)) || (((((x <= 4 && N <= 10) && y <= 3) && 7 <= i) && 0 <= x) && 0 <= y)) || (((((x <= 4 && y <= 4) && N <= 10) && 8 <= i) && 0 <= x) && 0 <= y)) || (((((x <= 8 && y <= 0) && N <= 10) && 8 <= i) && 0 <= x) && 0 <= y)) || (((((10 <= i && y <= 0) && x <= 7) && N <= 10) && 0 <= y + 3) && 0 <= x)) || ((((((9 <= i && N <= 10) && x <= 1) && 0 <= x) && 0 <= y) || ((((9 <= i && 0 <= x + 1) && N <= 10) && x <= 0) && 0 <= y)) && y <= 8)) || (((((y <= 0 && 3 <= i) && N <= 10) && x <= 0) && 0 <= y + 3) && 0 <= x)) || (((((0 <= y + 4 && y <= 0) && N <= 10) && x <= 1) && 5 <= i) && 0 <= x)) || (((((x <= 3 && y <= 1) && N <= 10) && 4 <= i) && 0 <= x) && 0 <= y)) || (((((10 <= i && x <= 8) && y <= 0) && N <= 10) && 0 <= y + 2) && 0 <= x)) || (((((y <= 2 && N <= 10) && 8 <= i) && 0 <= x) && 0 <= y) && x <= 6)) || (((((y <= 5 && 10 <= i) && 0 <= x + 5) && N <= 10) && x <= 0) && 0 <= y)) || (((((y <= 0 && N <= 10) && 7 <= i) && x <= 0) && 0 <= y + 7) && 0 <= x)) || (((((N <= 10 && 8 <= i) && x <= 0) && y <= 8) && 0 <= y) && 0 <= x)) || (((((9 <= i && y <= 4) && 0 <= x + 5) && N <= 10) && x <= 0) && 0 <= y)) || (((((x <= 3 && y <= 0) && N <= 10) && 0 <= y + 3) && 6 <= i) && 0 <= x)) || (((((y <= 0 && N <= 10) && x <= 0) && 8 <= i) && 0 <= x + 8) && 0 <= y)) || (((((0 <= x + 4 && N <= 10) && y <= 3) && 7 <= i) && x <= 0) && 0 <= y)) || (((((y <= 1 && 0 <= x + 5) && N <= 10) && x <= 0) && 6 <= i) && 0 <= y)) || (((((10 <= i && y <= 1) && 0 <= x + 2147483648) && N <= 10) && x <= 0) && 0 <= y)) || (((((x <= 3 && 0 <= y + 4) && y <= 0) && N <= 10) && 7 <= i) && 0 <= x)) || (((((y <= 5 && N <= 10) && x <= 0) && 5 <= i) && 0 <= x) && 0 <= y)) || ((y <= 0 && 0 <= y + 2) && ((((0 <= x + 1 && 3 <= i) && N <= 10) && x <= 0) || (((3 <= i && N <= 10) && x <= 1) && 0 <= x)))) || (((((y <= 0 && N <= 10) && x <= 0) && 5 <= i) && 0 <= y + 5) && 0 <= x)) || (((((x <= 3 && y <= 0) && 3 <= i) && N <= 10) && 0 <= x) && 0 <= y)) || (((((9 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= x + 9) && 0 <= y)) || (((((10 <= i && y <= 0) && 0 <= x + 5) && N <= 10) && x <= 0) && 0 <= y + 5)) || (((((0 <= y + 4 && y <= 0) && N <= 10) && 0 <= x + 2) && x <= 0) && 6 <= i)) || (((((y <= 2 && 3 <= i) && N <= 10) && x <= 1) && 0 <= x) && 0 <= y)) || (((((((9 <= i && y <= 0) && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y + 2147483648) || (((((9 <= i && y <= 0) && N <= 10) && 0 <= y + 2147483648) && x <= 2) && 0 <= x)) && 0 <= y + 7)) || (((((y <= 0 && 3 <= i) && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y + 1)) || (((((y <= 2 && N <= 10) && 0 <= x + 2) && x <= 0) && 4 <= i) && 0 <= y)) || (((((0 <= x + 1 && 0 <= y + 4) && y <= 0) && N <= 10) && x <= 0) && 5 <= i)) || (((((y <= 0 && N <= 10) && 8 <= i) && 0 <= y + 2) && 0 <= x) && x <= 6)) || (((((y <= 2 && N <= 10) && x <= 0) && 8 <= i) && 0 <= x + 6) && 0 <= y)) || (((((9 <= i && y <= 2) && N <= 10) && x <= 0) && 0 <= x + 7) && 0 <= y)) || (((((y <= 1 && 0 <= x + 4) && N <= 10) && x <= 0) && 5 <= i) && 0 <= y)) || (((((9 <= i && x <= 8) && y <= 0) && N <= 10) && 0 <= y + 1) && 0 <= x)) || (((((9 <= i && y <= 0) && 0 <= y + 6) && N <= 10) && x <= 0) && 0 <= x + 3)) || (((((x <= 3 && 9 <= i) && y <= 0) && 0 <= y + 6) && N <= 10) && 0 <= x)) || (((((y <= 5 && N <= 10) && 7 <= i) && x <= 2) && 0 <= x) && 0 <= y)) || (((((N <= 10 && y <= 3) && 8 <= i) && x <= 5) && 0 <= x) && 0 <= y)) || (((((y <= 2 && 0 <= x + 4) && N <= 10) && x <= 0) && 6 <= i) && 0 <= y)) || (((((x <= 3 && N <= 10) && y <= 3) && 6 <= i) && 0 <= x) && 0 <= y)) || ((((((N <= 10 && x <= 1) && 8 <= i) && 0 <= x) && 0 <= y) || ((((0 <= x + 1 && N <= 10) && x <= 0) && 8 <= i) && 0 <= y)) && y <= 7)) || (((((10 <= i && y <= 4) && N <= 10) && 0 <= x) && 0 <= y) && x <= 6)) || (((((x <= 3 && y <= 0) && N <= 10) && 0 <= y + 2) && 5 <= i) && 0 <= x)) || (((((y <= 1 && 3 <= i) && N <= 10) && x <= 2) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && 0 <= x + 2) && x <= 0) && 5 <= i) && 0 <= y + 3)) || (((((10 <= i && y <= 2) && N <= 10) && x <= 0) && 0 <= x + 8) && 0 <= y)) || (((((y <= 2 && N <= 10) && 7 <= i) && x <= 5) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && 6 <= i) && 0 <= x) && 0 <= y) && x <= 6)) || (((((10 <= i && y <= 4) && N <= 10) && x <= 0) && 0 <= x + 6) && 0 <= y)) || (((((10 <= i && 0 <= x + 4) && N <= 10) && x <= 0) && 0 <= y) && y <= 6)) || (((((9 <= i && y <= 0) && N <= 10) && 0 <= y + 3) && 0 <= x) && x <= 6)) || (((((9 <= i && 0 <= y + 4) && y <= 0) && N <= 10) && x <= 5) && 0 <= x)) || (((((x <= 4 && y <= 0) && N <= 10) && 0 <= y + 2) && 6 <= i) && 0 <= x)) || (((((9 <= i && N <= 10) && x <= 0) && 0 <= x + 3) && 0 <= y) && y <= 6)) || (((((y <= 0 && 0 <= y + 6) && N <= 10) && 8 <= i) && x <= 2) && 0 <= x)) || (((((9 <= i && y <= 1) && x <= 8) && N <= 10) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 0) && 0 <= x + 6) && 6 <= i) && 0 <= y)) || (((((N <= 10 && 8 <= i) && x <= 2) && 0 <= x) && 0 <= y) && y <= 6)) || (((((9 <= i && N <= 10) && y <= 3) && x <= 0) && 0 <= x + 6) && 0 <= y)) || (((((y <= 0 && N <= 10) && 7 <= i) && x <= 0) && 0 <= x + 7) && 0 <= y)) || (((((y <= 2 && N <= 10) && 2 <= i) && x <= 0) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 0) && 8 <= i) && 0 <= x + 3) && 0 <= y + 5)) || (((((N <= 10 && y <= 3) && 0 <= x + 2) && x <= 0) && 5 <= i) && 0 <= y)) || (((((N <= 10 && 7 <= i) && x <= 0) && 0 <= y) && 0 <= x) && y <= 7)) || (((((9 <= i && N <= 10) && x <= 2) && 0 <= x) && 0 <= y) && y <= 7)) || (((((10 <= i && N <= 10) && y <= 3) && x <= 0) && 0 <= x + 7) && 0 <= y)) || ((((10 <= i && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y)) || (((((0 <= x + 4 && y <= 4) && N <= 10) && x <= 0) && 8 <= i) && 0 <= y)) || (((((y <= 2 && N <= 10) && x <= 0) && 0 <= x + 3) && 5 <= i) && 0 <= y)) || (((((y <= 0 && x <= 7) && N <= 10) && 8 <= i) && 0 <= y + 1) && 0 <= x) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 10 error locations. Result: SAFE, OverallTime: 24.6s, OverallIterations: 47, TraceHistogramMax: 11, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 77.4s, HoareTripleCheckerStatistics: 1231 SDtfs, 5757 SDslu, 4420 SDs, 0 SdLazy, 1307 SolverSat, 863 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2197 GetRequests, 1950 SyntacticMatches, 0 SemanticMatches, 247 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55733occurred in iteration=40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.4s AutomataMinimizationTime, 47 MinimizatonAttempts, 130578 StatesRemovedByMinimization, 41 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 1768 NumberOfFragments, 4432 HoareAnnotationTreeSize, 2 FomulaSimplifications, 59037 FormulaSimplificationTreeSizeReduction, 18.7s HoareSimplificationTime, 2 FomulaSimplificationsInter, 66445 FormulaSimplificationTreeSizeReductionInter, 58.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 4011 NumberOfCodeBlocks, 4003 NumberOfCodeBlocksAsserted, 193 NumberOfCheckSat, 3923 ConstructedInterpolants, 0 QuantifiedInterpolants, 966205 SizeOfPredicates, 3 NumberOfNonLiveVariables, 4584 ConjunctsInSsa, 277 ConjunctsInUnsatCore, 88 InterpolantComputations, 9 PerfectInterpolantSequences, 724/11834 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...