./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 cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b0a853f0131530f88013a3fcfdf4f133f41c0569 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 21:22:16,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 21:22:16,326 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 21:22:16,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 21:22:16,336 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 21:22:16,337 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 21:22:16,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 21:22:16,340 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 21:22:16,352 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 21:22:16,353 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 21:22:16,354 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 21:22:16,354 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 21:22:16,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 21:22:16,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 21:22:16,356 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 21:22:16,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 21:22:16,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 21:22:16,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 21:22:16,360 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 21:22:16,362 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 21:22:16,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 21:22:16,364 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 21:22:16,369 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 21:22:16,370 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 21:22:16,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 21:22:16,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 21:22:16,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 21:22:16,381 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 21:22:16,382 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 21:22:16,384 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 21:22:16,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 21:22:16,384 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 21:22:16,385 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 21:22:16,385 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 21:22:16,388 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 21:22:16,388 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 21:22:16,389 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 21:22:16,389 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 21:22:16,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 21:22:16,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 21:22:16,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 21:22:16,394 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-15 21:22:16,413 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 21:22:16,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 21:22:16,414 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 21:22:16,415 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 21:22:16,415 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 21:22:16,415 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 21:22:16,415 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 21:22:16,415 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 21:22:16,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 21:22:16,416 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 21:22:16,417 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 21:22:16,417 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 21:22:16,417 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-15 21:22:16,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 21:22:16,418 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 21:22:16,418 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 21:22:16,418 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 21:22:16,418 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 21:22:16,419 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 21:22:16,419 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 21:22:16,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 21:22:16,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 21:22:16,419 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 21:22:16,420 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 21:22:16,420 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 21:22:16,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 21:22:16,420 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 21:22:16,421 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_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0a853f0131530f88013a3fcfdf4f133f41c0569 [2019-11-15 21:22:16,461 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 21:22:16,477 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 21:22:16,481 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 21:22:16,482 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 21:22:16,482 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 21:22:16,483 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c [2019-11-15 21:22:16,535 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/data/a68326f24/387d4600ef294952a4ccde389b873cc7/FLAGc1f8e85df [2019-11-15 21:22:16,919 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 21:22:16,919 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c [2019-11-15 21:22:16,925 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/data/a68326f24/387d4600ef294952a4ccde389b873cc7/FLAGc1f8e85df [2019-11-15 21:22:16,936 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/data/a68326f24/387d4600ef294952a4ccde389b873cc7 [2019-11-15 21:22:16,939 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 21:22:16,940 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 21:22:16,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 21:22:16,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 21:22:16,944 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 21:22:16,944 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:22:16" (1/1) ... [2019-11-15 21:22:16,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40a61265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:22:16, skipping insertion in model container [2019-11-15 21:22:16,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:22:16" (1/1) ... [2019-11-15 21:22:16,953 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 21:22:16,967 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 21:22:17,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:22:17,105 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 21:22:17,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:22:17,199 INFO L192 MainTranslator]: Completed translation [2019-11-15 21:22:17,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:22:17 WrapperNode [2019-11-15 21:22:17,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 21:22:17,201 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 21:22:17,201 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 21:22:17,201 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 21:22:17,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:22:17" (1/1) ... [2019-11-15 21:22:17,215 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:22:17" (1/1) ... [2019-11-15 21:22:17,233 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 21:22:17,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 21:22:17,235 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 21:22:17,235 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 21:22:17,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:22:17" (1/1) ... [2019-11-15 21:22:17,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:22:17" (1/1) ... [2019-11-15 21:22:17,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:22:17" (1/1) ... [2019-11-15 21:22:17,245 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:22:17" (1/1) ... [2019-11-15 21:22:17,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:22:17" (1/1) ... [2019-11-15 21:22:17,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:22:17" (1/1) ... [2019-11-15 21:22:17,260 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:22:17" (1/1) ... [2019-11-15 21:22:17,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 21:22:17,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 21:22:17,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 21:22:17,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 21:22:17,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:22:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 21:22:17,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 21:22:17,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 21:22:17,537 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 21:22:17,537 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-15 21:22:17,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:22:17 BoogieIcfgContainer [2019-11-15 21:22:17,538 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 21:22:17,539 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 21:22:17,539 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 21:22:17,543 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 21:22:17,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 09:22:16" (1/3) ... [2019-11-15 21:22:17,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fa396e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:22:17, skipping insertion in model container [2019-11-15 21:22:17,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:22:17" (2/3) ... [2019-11-15 21:22:17,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fa396e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:22:17, skipping insertion in model container [2019-11-15 21:22:17,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:22:17" (3/3) ... [2019-11-15 21:22:17,546 INFO L109 eAbstractionObserver]: Analyzing ICFG ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c [2019-11-15 21:22:17,554 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 21:22:17,560 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2019-11-15 21:22:17,569 INFO L249 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2019-11-15 21:22:17,589 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 21:22:17,589 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 21:22:17,589 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 21:22:17,590 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 21:22:17,590 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 21:22:17,590 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 21:22:17,590 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 21:22:17,591 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 21:22:17,604 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2019-11-15 21:22:17,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-15 21:22:17,609 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:17,609 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-15 21:22:17,611 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:17,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:17,616 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-11-15 21:22:17,623 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:17,623 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500106411] [2019-11-15 21:22:17,624 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:17,624 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:17,624 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:17,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:17,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:17,756 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500106411] [2019-11-15 21:22:17,756 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:22:17,757 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-15 21:22:17,757 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489518612] [2019-11-15 21:22:17,760 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:22:17,761 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:17,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:22:17,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:22:17,771 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 3 states. [2019-11-15 21:22:17,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:17,827 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2019-11-15 21:22:17,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:22:17,828 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-11-15 21:22:17,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:17,836 INFO L225 Difference]: With dead ends: 43 [2019-11-15 21:22:17,836 INFO L226 Difference]: Without dead ends: 30 [2019-11-15 21:22:17,839 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:22:17,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-15 21:22:17,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2019-11-15 21:22:17,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-15 21:22:17,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2019-11-15 21:22:17,870 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 3 [2019-11-15 21:22:17,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:17,870 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2019-11-15 21:22:17,870 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:22:17,871 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2019-11-15 21:22:17,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-15 21:22:17,871 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:17,871 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-15 21:22:17,872 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:17,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:17,872 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2019-11-15 21:22:17,872 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:17,872 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032246047] [2019-11-15 21:22:17,873 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:17,873 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:17,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:17,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:17,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:17,889 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032246047] [2019-11-15 21:22:17,889 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:22:17,889 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-15 21:22:17,889 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827960823] [2019-11-15 21:22:17,891 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:22:17,891 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:17,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:22:17,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:22:17,892 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand 3 states. [2019-11-15 21:22:17,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:17,907 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2019-11-15 21:22:17,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:22:17,908 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-15 21:22:17,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:17,909 INFO L225 Difference]: With dead ends: 29 [2019-11-15 21:22:17,909 INFO L226 Difference]: Without dead ends: 28 [2019-11-15 21:22:17,910 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:22:17,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-11-15 21:22:17,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-11-15 21:22:17,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-15 21:22:17,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2019-11-15 21:22:17,914 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 4 [2019-11-15 21:22:17,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:17,914 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2019-11-15 21:22:17,915 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:22:17,915 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2019-11-15 21:22:17,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-15 21:22:17,915 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:17,915 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:22:17,916 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:17,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:17,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1366845466, now seen corresponding path program 1 times [2019-11-15 21:22:17,916 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:17,917 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816299096] [2019-11-15 21:22:17,917 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:17,917 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:17,920 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:17,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:17,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:17,942 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816299096] [2019-11-15 21:22:17,942 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:22:17,942 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-15 21:22:17,942 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109688214] [2019-11-15 21:22:17,943 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:22:17,943 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:17,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:22:17,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:22:17,943 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand 3 states. [2019-11-15 21:22:17,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:17,988 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2019-11-15 21:22:17,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:22:17,990 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-11-15 21:22:17,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:17,991 INFO L225 Difference]: With dead ends: 51 [2019-11-15 21:22:17,991 INFO L226 Difference]: Without dead ends: 49 [2019-11-15 21:22:17,992 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:22:17,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-11-15 21:22:17,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2019-11-15 21:22:17,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-11-15 21:22:18,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 59 transitions. [2019-11-15 21:22:18,003 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 59 transitions. Word has length 7 [2019-11-15 21:22:18,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:18,004 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 59 transitions. [2019-11-15 21:22:18,004 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:22:18,004 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 59 transitions. [2019-11-15 21:22:18,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-15 21:22:18,005 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:18,005 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-11-15 21:22:18,006 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:18,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:18,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1366808307, now seen corresponding path program 1 times [2019-11-15 21:22:18,007 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:18,007 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465272563] [2019-11-15 21:22:18,007 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:18,007 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:18,008 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:18,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:18,047 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:18,047 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465272563] [2019-11-15 21:22:18,048 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250393448] [2019-11-15 21:22:18,048 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:18,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:18,077 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 21:22:18,082 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:18,099 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:18,100 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:18,100 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-11-15 21:22:18,100 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769346105] [2019-11-15 21:22:18,101 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 21:22:18,101 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:18,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 21:22:18,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:22:18,102 INFO L87 Difference]: Start difference. First operand 43 states and 59 transitions. Second operand 4 states. [2019-11-15 21:22:18,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:18,138 INFO L93 Difference]: Finished difference Result 70 states and 92 transitions. [2019-11-15 21:22:18,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 21:22:18,141 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-15 21:22:18,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:18,142 INFO L225 Difference]: With dead ends: 70 [2019-11-15 21:22:18,142 INFO L226 Difference]: Without dead ends: 69 [2019-11-15 21:22:18,143 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:22:18,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-11-15 21:22:18,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 61. [2019-11-15 21:22:18,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-11-15 21:22:18,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 88 transitions. [2019-11-15 21:22:18,151 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 88 transitions. Word has length 7 [2019-11-15 21:22:18,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:18,151 INFO L462 AbstractCegarLoop]: Abstraction has 61 states and 88 transitions. [2019-11-15 21:22:18,151 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 21:22:18,151 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 88 transitions. [2019-11-15 21:22:18,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-15 21:22:18,152 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:18,152 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:22:18,352 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:18,353 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:18,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:18,353 INFO L82 PathProgramCache]: Analyzing trace with hash 577463568, now seen corresponding path program 1 times [2019-11-15 21:22:18,353 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:18,354 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544229172] [2019-11-15 21:22:18,354 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:18,354 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:18,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:18,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:18,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:18,377 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544229172] [2019-11-15 21:22:18,377 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:22:18,378 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-15 21:22:18,378 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466894617] [2019-11-15 21:22:18,378 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:22:18,378 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:18,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:22:18,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:22:18,379 INFO L87 Difference]: Start difference. First operand 61 states and 88 transitions. Second operand 3 states. [2019-11-15 21:22:18,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:18,425 INFO L93 Difference]: Finished difference Result 101 states and 146 transitions. [2019-11-15 21:22:18,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:22:18,426 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-15 21:22:18,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:18,427 INFO L225 Difference]: With dead ends: 101 [2019-11-15 21:22:18,428 INFO L226 Difference]: Without dead ends: 99 [2019-11-15 21:22:18,428 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:22:18,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-11-15 21:22:18,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 94. [2019-11-15 21:22:18,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-11-15 21:22:18,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 141 transitions. [2019-11-15 21:22:18,438 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 141 transitions. Word has length 8 [2019-11-15 21:22:18,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:18,439 INFO L462 AbstractCegarLoop]: Abstraction has 94 states and 141 transitions. [2019-11-15 21:22:18,439 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:22:18,439 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 141 transitions. [2019-11-15 21:22:18,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-15 21:22:18,439 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:18,440 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:22:18,440 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:18,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:18,440 INFO L82 PathProgramCache]: Analyzing trace with hash 721693167, now seen corresponding path program 1 times [2019-11-15 21:22:18,441 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:18,441 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556289888] [2019-11-15 21:22:18,441 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:18,441 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:18,441 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:18,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:18,478 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556289888] [2019-11-15 21:22:18,478 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:22:18,478 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-15 21:22:18,479 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213938856] [2019-11-15 21:22:18,479 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:22:18,479 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:18,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:22:18,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:22:18,480 INFO L87 Difference]: Start difference. First operand 94 states and 141 transitions. Second operand 3 states. [2019-11-15 21:22:18,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:18,512 INFO L93 Difference]: Finished difference Result 165 states and 252 transitions. [2019-11-15 21:22:18,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:22:18,512 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-15 21:22:18,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:18,514 INFO L225 Difference]: With dead ends: 165 [2019-11-15 21:22:18,514 INFO L226 Difference]: Without dead ends: 163 [2019-11-15 21:22:18,515 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:22:18,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2019-11-15 21:22:18,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 154. [2019-11-15 21:22:18,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-11-15 21:22:18,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 234 transitions. [2019-11-15 21:22:18,530 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 234 transitions. Word has length 9 [2019-11-15 21:22:18,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:18,530 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 234 transitions. [2019-11-15 21:22:18,530 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:22:18,530 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 234 transitions. [2019-11-15 21:22:18,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 21:22:18,531 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:18,531 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:22:18,532 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:18,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:18,532 INFO L82 PathProgramCache]: Analyzing trace with hash 897651769, now seen corresponding path program 1 times [2019-11-15 21:22:18,532 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:18,532 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629144397] [2019-11-15 21:22:18,533 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:18,533 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:18,533 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:18,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:18,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:18,552 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629144397] [2019-11-15 21:22:18,552 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:22:18,553 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-15 21:22:18,553 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471603908] [2019-11-15 21:22:18,553 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:22:18,553 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:18,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:22:18,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:22:18,554 INFO L87 Difference]: Start difference. First operand 154 states and 234 transitions. Second operand 3 states. [2019-11-15 21:22:18,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:18,592 INFO L93 Difference]: Finished difference Result 283 states and 438 transitions. [2019-11-15 21:22:18,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:22:18,592 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-11-15 21:22:18,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:18,594 INFO L225 Difference]: With dead ends: 283 [2019-11-15 21:22:18,594 INFO L226 Difference]: Without dead ends: 281 [2019-11-15 21:22:18,595 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:22:18,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2019-11-15 21:22:18,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 276. [2019-11-15 21:22:18,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2019-11-15 21:22:18,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 424 transitions. [2019-11-15 21:22:18,624 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 424 transitions. Word has length 10 [2019-11-15 21:22:18,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:18,625 INFO L462 AbstractCegarLoop]: Abstraction has 276 states and 424 transitions. [2019-11-15 21:22:18,625 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:22:18,625 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 424 transitions. [2019-11-15 21:22:18,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 21:22:18,626 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:18,626 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1] [2019-11-15 21:22:18,627 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:18,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:18,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1830298297, now seen corresponding path program 2 times [2019-11-15 21:22:18,628 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:18,628 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696734288] [2019-11-15 21:22:18,628 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:18,628 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:18,628 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:18,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:18,681 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-15 21:22:18,681 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696734288] [2019-11-15 21:22:18,681 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887116462] [2019-11-15 21:22:18,681 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/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 [2019-11-15 21:22:18,718 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-15 21:22:18,718 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:22:18,719 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 21:22:18,720 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:18,722 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-15 21:22:18,728 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:18,728 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-11-15 21:22:18,728 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223252507] [2019-11-15 21:22:18,729 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 21:22:18,729 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:18,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 21:22:18,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:22:18,730 INFO L87 Difference]: Start difference. First operand 276 states and 424 transitions. Second operand 4 states. [2019-11-15 21:22:18,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:18,758 INFO L93 Difference]: Finished difference Result 276 states and 424 transitions. [2019-11-15 21:22:18,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 21:22:18,758 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-15 21:22:18,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:18,760 INFO L225 Difference]: With dead ends: 276 [2019-11-15 21:22:18,761 INFO L226 Difference]: Without dead ends: 275 [2019-11-15 21:22:18,761 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:22:18,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2019-11-15 21:22:18,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 249. [2019-11-15 21:22:18,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2019-11-15 21:22:18,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 377 transitions. [2019-11-15 21:22:18,787 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 377 transitions. Word has length 11 [2019-11-15 21:22:18,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:18,787 INFO L462 AbstractCegarLoop]: Abstraction has 249 states and 377 transitions. [2019-11-15 21:22:18,788 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 21:22:18,788 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 377 transitions. [2019-11-15 21:22:18,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 21:22:18,789 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:18,789 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1] [2019-11-15 21:22:18,992 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:18,993 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:18,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:18,993 INFO L82 PathProgramCache]: Analyzing trace with hash -795491305, now seen corresponding path program 1 times [2019-11-15 21:22:18,993 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:18,993 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751110293] [2019-11-15 21:22:18,993 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:18,993 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:18,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:19,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:19,038 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:19,038 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751110293] [2019-11-15 21:22:19,039 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312323921] [2019-11-15 21:22:19,039 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:19,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:19,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 21:22:19,076 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:19,079 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:19,079 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:19,080 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-11-15 21:22:19,080 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426872681] [2019-11-15 21:22:19,080 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 21:22:19,081 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:19,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 21:22:19,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:22:19,081 INFO L87 Difference]: Start difference. First operand 249 states and 377 transitions. Second operand 4 states. [2019-11-15 21:22:19,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:19,139 INFO L93 Difference]: Finished difference Result 449 states and 688 transitions. [2019-11-15 21:22:19,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 21:22:19,140 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-11-15 21:22:19,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:19,143 INFO L225 Difference]: With dead ends: 449 [2019-11-15 21:22:19,143 INFO L226 Difference]: Without dead ends: 447 [2019-11-15 21:22:19,143 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:22:19,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2019-11-15 21:22:19,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 357. [2019-11-15 21:22:19,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 357 states. [2019-11-15 21:22:19,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 543 transitions. [2019-11-15 21:22:19,168 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 543 transitions. Word has length 14 [2019-11-15 21:22:19,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:19,170 INFO L462 AbstractCegarLoop]: Abstraction has 357 states and 543 transitions. [2019-11-15 21:22:19,170 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 21:22:19,171 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 543 transitions. [2019-11-15 21:22:19,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-15 21:22:19,173 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:19,173 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:22:19,381 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:19,382 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:19,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:19,382 INFO L82 PathProgramCache]: Analyzing trace with hash 592160614, now seen corresponding path program 1 times [2019-11-15 21:22:19,382 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:19,382 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954114260] [2019-11-15 21:22:19,382 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:19,383 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:19,383 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:19,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:19,438 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:19,438 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954114260] [2019-11-15 21:22:19,438 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971152667] [2019-11-15 21:22:19,438 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:19,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 21:22:19,466 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:19,474 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:19,474 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-15 21:22:19,474 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 4 [2019-11-15 21:22:19,474 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290878096] [2019-11-15 21:22:19,475 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:22:19,475 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:19,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:22:19,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:22:19,476 INFO L87 Difference]: Start difference. First operand 357 states and 543 transitions. Second operand 3 states. [2019-11-15 21:22:19,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:19,493 INFO L93 Difference]: Finished difference Result 357 states and 543 transitions. [2019-11-15 21:22:19,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:22:19,493 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-15 21:22:19,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:19,496 INFO L225 Difference]: With dead ends: 357 [2019-11-15 21:22:19,496 INFO L226 Difference]: Without dead ends: 356 [2019-11-15 21:22:19,496 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:22:19,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2019-11-15 21:22:19,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2019-11-15 21:22:19,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2019-11-15 21:22:19,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 535 transitions. [2019-11-15 21:22:19,508 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 535 transitions. Word has length 16 [2019-11-15 21:22:19,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:19,508 INFO L462 AbstractCegarLoop]: Abstraction has 356 states and 535 transitions. [2019-11-15 21:22:19,509 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:22:19,509 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 535 transitions. [2019-11-15 21:22:19,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-15 21:22:19,510 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:19,510 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2019-11-15 21:22:19,713 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:19,714 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:19,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:19,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1177295603, now seen corresponding path program 1 times [2019-11-15 21:22:19,714 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:19,714 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412690337] [2019-11-15 21:22:19,714 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:19,715 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:19,715 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:19,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:19,737 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:19,738 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412690337] [2019-11-15 21:22:19,738 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666666622] [2019-11-15 21:22:19,738 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:19,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:19,766 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 21:22:19,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:19,769 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:19,769 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:19,770 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-11-15 21:22:19,770 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775634591] [2019-11-15 21:22:19,770 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 21:22:19,770 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:19,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 21:22:19,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:22:19,771 INFO L87 Difference]: Start difference. First operand 356 states and 535 transitions. Second operand 4 states. [2019-11-15 21:22:19,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:19,819 INFO L93 Difference]: Finished difference Result 609 states and 919 transitions. [2019-11-15 21:22:19,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 21:22:19,821 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-11-15 21:22:19,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:19,825 INFO L225 Difference]: With dead ends: 609 [2019-11-15 21:22:19,825 INFO L226 Difference]: Without dead ends: 608 [2019-11-15 21:22:19,826 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:22:19,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2019-11-15 21:22:19,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 464. [2019-11-15 21:22:19,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2019-11-15 21:22:19,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 701 transitions. [2019-11-15 21:22:19,845 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 701 transitions. Word has length 17 [2019-11-15 21:22:19,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:19,845 INFO L462 AbstractCegarLoop]: Abstraction has 464 states and 701 transitions. [2019-11-15 21:22:19,845 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 21:22:19,845 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 701 transitions. [2019-11-15 21:22:19,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-15 21:22:19,847 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:19,847 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2019-11-15 21:22:20,051 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:20,051 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:20,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:20,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1222343671, now seen corresponding path program 1 times [2019-11-15 21:22:20,052 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:20,052 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248499710] [2019-11-15 21:22:20,052 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:20,052 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:20,053 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:20,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:20,099 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:20,100 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248499710] [2019-11-15 21:22:20,100 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842047081] [2019-11-15 21:22:20,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:20,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:20,136 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 21:22:20,137 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:20,141 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:20,144 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:20,144 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-11-15 21:22:20,144 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027884732] [2019-11-15 21:22:20,145 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 21:22:20,146 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:20,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 21:22:20,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:22:20,147 INFO L87 Difference]: Start difference. First operand 464 states and 701 transitions. Second operand 4 states. [2019-11-15 21:22:20,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:20,195 INFO L93 Difference]: Finished difference Result 834 states and 1284 transitions. [2019-11-15 21:22:20,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 21:22:20,196 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-11-15 21:22:20,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:20,201 INFO L225 Difference]: With dead ends: 834 [2019-11-15 21:22:20,201 INFO L226 Difference]: Without dead ends: 832 [2019-11-15 21:22:20,202 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:22:20,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2019-11-15 21:22:20,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 668. [2019-11-15 21:22:20,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 668 states. [2019-11-15 21:22:20,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 1007 transitions. [2019-11-15 21:22:20,227 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 1007 transitions. Word has length 18 [2019-11-15 21:22:20,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:20,228 INFO L462 AbstractCegarLoop]: Abstraction has 668 states and 1007 transitions. [2019-11-15 21:22:20,228 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 21:22:20,228 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 1007 transitions. [2019-11-15 21:22:20,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-15 21:22:20,231 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:20,232 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:22:20,435 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:20,436 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:20,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:20,436 INFO L82 PathProgramCache]: Analyzing trace with hash -668230362, now seen corresponding path program 1 times [2019-11-15 21:22:20,437 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:20,437 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973605680] [2019-11-15 21:22:20,437 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:20,437 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:20,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:20,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:20,464 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:20,464 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973605680] [2019-11-15 21:22:20,464 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752846561] [2019-11-15 21:22:20,464 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:20,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:20,494 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 21:22:20,495 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:20,511 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:20,511 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-15 21:22:20,511 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 4 [2019-11-15 21:22:20,511 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732228323] [2019-11-15 21:22:20,512 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:22:20,512 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:20,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:22:20,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:22:20,512 INFO L87 Difference]: Start difference. First operand 668 states and 1007 transitions. Second operand 3 states. [2019-11-15 21:22:20,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:20,539 INFO L93 Difference]: Finished difference Result 668 states and 1007 transitions. [2019-11-15 21:22:20,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:22:20,540 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-11-15 21:22:20,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:20,544 INFO L225 Difference]: With dead ends: 668 [2019-11-15 21:22:20,544 INFO L226 Difference]: Without dead ends: 667 [2019-11-15 21:22:20,545 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:22:20,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2019-11-15 21:22:20,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 667. [2019-11-15 21:22:20,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 667 states. [2019-11-15 21:22:20,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 991 transitions. [2019-11-15 21:22:20,567 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 991 transitions. Word has length 20 [2019-11-15 21:22:20,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:20,567 INFO L462 AbstractCegarLoop]: Abstraction has 667 states and 991 transitions. [2019-11-15 21:22:20,567 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:22:20,568 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 991 transitions. [2019-11-15 21:22:20,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-15 21:22:20,568 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:20,569 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1] [2019-11-15 21:22:20,772 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:20,773 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:20,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:20,773 INFO L82 PathProgramCache]: Analyzing trace with hash 2023206598, now seen corresponding path program 2 times [2019-11-15 21:22:20,773 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:20,773 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056695854] [2019-11-15 21:22:20,774 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:20,774 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:20,774 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:20,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:20,833 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:20,833 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056695854] [2019-11-15 21:22:20,834 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916112036] [2019-11-15 21:22:20,834 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:20,873 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 21:22:20,874 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:22:20,875 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 21:22:20,876 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:20,880 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:20,880 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:20,880 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2019-11-15 21:22:20,880 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501557149] [2019-11-15 21:22:20,881 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 21:22:20,881 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:20,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 21:22:20,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:22:20,882 INFO L87 Difference]: Start difference. First operand 667 states and 991 transitions. Second operand 5 states. [2019-11-15 21:22:20,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:20,946 INFO L93 Difference]: Finished difference Result 1152 states and 1729 transitions. [2019-11-15 21:22:20,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 21:22:20,947 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2019-11-15 21:22:20,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:20,953 INFO L225 Difference]: With dead ends: 1152 [2019-11-15 21:22:20,953 INFO L226 Difference]: Without dead ends: 1150 [2019-11-15 21:22:20,954 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:22:20,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2019-11-15 21:22:20,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 913. [2019-11-15 21:22:20,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 913 states. [2019-11-15 21:22:20,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1351 transitions. [2019-11-15 21:22:20,987 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1351 transitions. Word has length 21 [2019-11-15 21:22:20,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:20,987 INFO L462 AbstractCegarLoop]: Abstraction has 913 states and 1351 transitions. [2019-11-15 21:22:20,987 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 21:22:20,987 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1351 transitions. [2019-11-15 21:22:20,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-15 21:22:20,988 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:20,988 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2019-11-15 21:22:21,193 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:21,194 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:21,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:21,194 INFO L82 PathProgramCache]: Analyzing trace with hash 759881029, now seen corresponding path program 1 times [2019-11-15 21:22:21,194 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:21,194 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132346073] [2019-11-15 21:22:21,194 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:21,194 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:21,195 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:21,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:21,242 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:21,242 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132346073] [2019-11-15 21:22:21,242 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967079048] [2019-11-15 21:22:21,243 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:21,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:21,281 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 21:22:21,281 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:21,283 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:21,283 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:21,284 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-11-15 21:22:21,284 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633780251] [2019-11-15 21:22:21,284 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 21:22:21,284 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:21,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 21:22:21,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:22:21,284 INFO L87 Difference]: Start difference. First operand 913 states and 1351 transitions. Second operand 4 states. [2019-11-15 21:22:21,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:21,344 INFO L93 Difference]: Finished difference Result 1557 states and 2328 transitions. [2019-11-15 21:22:21,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 21:22:21,344 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2019-11-15 21:22:21,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:21,352 INFO L225 Difference]: With dead ends: 1557 [2019-11-15 21:22:21,353 INFO L226 Difference]: Without dead ends: 1556 [2019-11-15 21:22:21,355 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:22:21,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2019-11-15 21:22:21,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1193. [2019-11-15 21:22:21,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1193 states. [2019-11-15 21:22:21,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1768 transitions. [2019-11-15 21:22:21,391 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1768 transitions. Word has length 21 [2019-11-15 21:22:21,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:21,391 INFO L462 AbstractCegarLoop]: Abstraction has 1193 states and 1768 transitions. [2019-11-15 21:22:21,391 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 21:22:21,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1768 transitions. [2019-11-15 21:22:21,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-15 21:22:21,392 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:21,393 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1] [2019-11-15 21:22:21,597 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:21,598 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:21,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:21,598 INFO L82 PathProgramCache]: Analyzing trace with hash 1092753757, now seen corresponding path program 2 times [2019-11-15 21:22:21,598 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:21,598 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118441110] [2019-11-15 21:22:21,598 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:21,598 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:21,598 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:21,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:21,647 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:21,647 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118441110] [2019-11-15 21:22:21,647 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913464289] [2019-11-15 21:22:21,647 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:21,685 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 21:22:21,685 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:22:21,686 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 21:22:21,688 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:21,691 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:21,692 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:21,692 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2019-11-15 21:22:21,692 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831421391] [2019-11-15 21:22:21,692 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 21:22:21,693 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:21,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 21:22:21,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:22:21,693 INFO L87 Difference]: Start difference. First operand 1193 states and 1768 transitions. Second operand 5 states. [2019-11-15 21:22:21,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:21,762 INFO L93 Difference]: Finished difference Result 1951 states and 2902 transitions. [2019-11-15 21:22:21,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 21:22:21,763 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-15 21:22:21,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:21,773 INFO L225 Difference]: With dead ends: 1951 [2019-11-15 21:22:21,773 INFO L226 Difference]: Without dead ends: 1950 [2019-11-15 21:22:21,775 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:22:21,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2019-11-15 21:22:21,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1429. [2019-11-15 21:22:21,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1429 states. [2019-11-15 21:22:21,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 2114 transitions. [2019-11-15 21:22:21,816 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 2114 transitions. Word has length 25 [2019-11-15 21:22:21,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:21,817 INFO L462 AbstractCegarLoop]: Abstraction has 1429 states and 2114 transitions. [2019-11-15 21:22:21,817 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 21:22:21,817 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 2114 transitions. [2019-11-15 21:22:21,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-15 21:22:21,818 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:21,818 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1] [2019-11-15 21:22:22,027 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:22,027 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:22,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:22,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1883170607, now seen corresponding path program 2 times [2019-11-15 21:22:22,028 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:22,028 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368702448] [2019-11-15 21:22:22,028 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:22,028 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:22,028 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:22,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:22,062 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:22,062 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368702448] [2019-11-15 21:22:22,062 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344327637] [2019-11-15 21:22:22,062 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:22,091 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 21:22:22,091 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:22:22,092 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 21:22:22,093 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:22,096 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:22,097 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:22,097 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2019-11-15 21:22:22,097 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490445481] [2019-11-15 21:22:22,097 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 21:22:22,098 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:22,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 21:22:22,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:22:22,098 INFO L87 Difference]: Start difference. First operand 1429 states and 2114 transitions. Second operand 5 states. [2019-11-15 21:22:22,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:22,166 INFO L93 Difference]: Finished difference Result 2462 states and 3693 transitions. [2019-11-15 21:22:22,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 21:22:22,166 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-11-15 21:22:22,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:22,178 INFO L225 Difference]: With dead ends: 2462 [2019-11-15 21:22:22,178 INFO L226 Difference]: Without dead ends: 2460 [2019-11-15 21:22:22,180 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:22:22,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2460 states. [2019-11-15 21:22:22,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2460 to 1959. [2019-11-15 21:22:22,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1959 states. [2019-11-15 21:22:22,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 2882 transitions. [2019-11-15 21:22:22,235 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 2882 transitions. Word has length 27 [2019-11-15 21:22:22,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:22,235 INFO L462 AbstractCegarLoop]: Abstraction has 1959 states and 2882 transitions. [2019-11-15 21:22:22,236 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 21:22:22,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 2882 transitions. [2019-11-15 21:22:22,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-15 21:22:22,237 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:22,237 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 1, 1] [2019-11-15 21:22:22,440 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:22,440 INFO L410 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:22,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:22,441 INFO L82 PathProgramCache]: Analyzing trace with hash -748146377, now seen corresponding path program 3 times [2019-11-15 21:22:22,441 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:22,441 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832456772] [2019-11-15 21:22:22,441 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:22,441 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:22,442 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:22,474 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:22,474 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832456772] [2019-11-15 21:22:22,474 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808310574] [2019-11-15 21:22:22,474 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:22,512 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-11-15 21:22:22,512 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:22:22,513 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 21:22:22,514 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:22,518 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:22,518 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:22,519 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-15 21:22:22,519 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885461942] [2019-11-15 21:22:22,519 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 21:22:22,519 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:22,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 21:22:22,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-15 21:22:22,520 INFO L87 Difference]: Start difference. First operand 1959 states and 2882 transitions. Second operand 6 states. [2019-11-15 21:22:22,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:22,603 INFO L93 Difference]: Finished difference Result 3173 states and 4732 transitions. [2019-11-15 21:22:22,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 21:22:22,603 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2019-11-15 21:22:22,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:22,619 INFO L225 Difference]: With dead ends: 3173 [2019-11-15 21:22:22,620 INFO L226 Difference]: Without dead ends: 3171 [2019-11-15 21:22:22,622 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-15 21:22:22,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3171 states. [2019-11-15 21:22:22,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3171 to 2563. [2019-11-15 21:22:22,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2563 states. [2019-11-15 21:22:22,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2563 states to 2563 states and 3749 transitions. [2019-11-15 21:22:22,693 INFO L78 Accepts]: Start accepts. Automaton has 2563 states and 3749 transitions. Word has length 28 [2019-11-15 21:22:22,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:22,694 INFO L462 AbstractCegarLoop]: Abstraction has 2563 states and 3749 transitions. [2019-11-15 21:22:22,694 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 21:22:22,694 INFO L276 IsEmpty]: Start isEmpty. Operand 2563 states and 3749 transitions. [2019-11-15 21:22:22,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-15 21:22:22,695 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:22,695 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1] [2019-11-15 21:22:22,899 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:22,899 INFO L410 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:22,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:22,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1682870728, now seen corresponding path program 2 times [2019-11-15 21:22:22,900 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:22,900 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619287179] [2019-11-15 21:22:22,900 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:22,900 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:22,900 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:22,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:22,942 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:22,942 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619287179] [2019-11-15 21:22:22,943 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327030330] [2019-11-15 21:22:22,943 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:22,987 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 21:22:22,987 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:22:22,988 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 21:22:22,989 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:22,998 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:22,999 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:22,999 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2019-11-15 21:22:22,999 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561373362] [2019-11-15 21:22:22,999 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 21:22:23,004 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:23,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 21:22:23,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:22:23,005 INFO L87 Difference]: Start difference. First operand 2563 states and 3749 transitions. Second operand 5 states. [2019-11-15 21:22:23,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:23,081 INFO L93 Difference]: Finished difference Result 4182 states and 6155 transitions. [2019-11-15 21:22:23,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 21:22:23,082 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-11-15 21:22:23,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:23,103 INFO L225 Difference]: With dead ends: 4182 [2019-11-15 21:22:23,103 INFO L226 Difference]: Without dead ends: 4181 [2019-11-15 21:22:23,107 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:22:23,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4181 states. [2019-11-15 21:22:23,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4181 to 3071. [2019-11-15 21:22:23,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3071 states. [2019-11-15 21:22:23,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3071 states to 3071 states and 4483 transitions. [2019-11-15 21:22:23,240 INFO L78 Accepts]: Start accepts. Automaton has 3071 states and 4483 transitions. Word has length 31 [2019-11-15 21:22:23,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:23,241 INFO L462 AbstractCegarLoop]: Abstraction has 3071 states and 4483 transitions. [2019-11-15 21:22:23,241 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 21:22:23,241 INFO L276 IsEmpty]: Start isEmpty. Operand 3071 states and 4483 transitions. [2019-11-15 21:22:23,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-15 21:22:23,242 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:23,242 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 1, 1] [2019-11-15 21:22:23,445 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:23,446 INFO L410 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:23,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:23,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1047523897, now seen corresponding path program 3 times [2019-11-15 21:22:23,447 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:23,447 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563871921] [2019-11-15 21:22:23,447 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:23,447 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:23,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:23,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:23,513 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:23,513 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563871921] [2019-11-15 21:22:23,514 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779397963] [2019-11-15 21:22:23,514 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:23,552 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-11-15 21:22:23,552 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:22:23,553 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 21:22:23,554 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:23,561 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:23,562 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:23,562 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-15 21:22:23,562 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752156815] [2019-11-15 21:22:23,562 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 21:22:23,563 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:23,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 21:22:23,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-15 21:22:23,563 INFO L87 Difference]: Start difference. First operand 3071 states and 4483 transitions. Second operand 6 states. [2019-11-15 21:22:23,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:23,659 INFO L93 Difference]: Finished difference Result 4727 states and 6947 transitions. [2019-11-15 21:22:23,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 21:22:23,660 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-11-15 21:22:23,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:23,684 INFO L225 Difference]: With dead ends: 4727 [2019-11-15 21:22:23,684 INFO L226 Difference]: Without dead ends: 4726 [2019-11-15 21:22:23,688 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-15 21:22:23,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4726 states. [2019-11-15 21:22:23,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4726 to 3459. [2019-11-15 21:22:23,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3459 states. [2019-11-15 21:22:23,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3459 states to 3459 states and 5047 transitions. [2019-11-15 21:22:23,782 INFO L78 Accepts]: Start accepts. Automaton has 3459 states and 5047 transitions. Word has length 33 [2019-11-15 21:22:23,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:23,782 INFO L462 AbstractCegarLoop]: Abstraction has 3459 states and 5047 transitions. [2019-11-15 21:22:23,782 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 21:22:23,782 INFO L276 IsEmpty]: Start isEmpty. Operand 3459 states and 5047 transitions. [2019-11-15 21:22:23,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-15 21:22:23,783 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:23,783 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 1, 1] [2019-11-15 21:22:23,987 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:23,987 INFO L410 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:23,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:23,987 INFO L82 PathProgramCache]: Analyzing trace with hash -507101786, now seen corresponding path program 4 times [2019-11-15 21:22:23,988 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:23,988 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724996505] [2019-11-15 21:22:23,988 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:23,988 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:23,988 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:24,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:24,052 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:24,052 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724996505] [2019-11-15 21:22:24,052 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520874150] [2019-11-15 21:22:24,053 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:24,097 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-15 21:22:24,097 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:22:24,098 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-15 21:22:24,099 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:24,105 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:24,110 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:24,110 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2019-11-15 21:22:24,111 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123555230] [2019-11-15 21:22:24,111 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 21:22:24,112 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:24,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 21:22:24,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-15 21:22:24,112 INFO L87 Difference]: Start difference. First operand 3459 states and 5047 transitions. Second operand 7 states. [2019-11-15 21:22:24,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:24,223 INFO L93 Difference]: Finished difference Result 5326 states and 7884 transitions. [2019-11-15 21:22:24,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 21:22:24,223 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-11-15 21:22:24,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:24,258 INFO L225 Difference]: With dead ends: 5326 [2019-11-15 21:22:24,258 INFO L226 Difference]: Without dead ends: 5324 [2019-11-15 21:22:24,262 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-15 21:22:24,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5324 states. [2019-11-15 21:22:24,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5324 to 4377. [2019-11-15 21:22:24,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4377 states. [2019-11-15 21:22:24,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4377 states to 4377 states and 6353 transitions. [2019-11-15 21:22:24,379 INFO L78 Accepts]: Start accepts. Automaton has 4377 states and 6353 transitions. Word has length 35 [2019-11-15 21:22:24,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:24,379 INFO L462 AbstractCegarLoop]: Abstraction has 4377 states and 6353 transitions. [2019-11-15 21:22:24,380 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 21:22:24,380 INFO L276 IsEmpty]: Start isEmpty. Operand 4377 states and 6353 transitions. [2019-11-15 21:22:24,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-15 21:22:24,381 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:24,381 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1] [2019-11-15 21:22:24,585 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:24,585 INFO L410 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:24,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:24,585 INFO L82 PathProgramCache]: Analyzing trace with hash -32854327, now seen corresponding path program 3 times [2019-11-15 21:22:24,586 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:24,586 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121528298] [2019-11-15 21:22:24,586 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:24,586 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:24,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:24,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:24,628 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:24,628 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121528298] [2019-11-15 21:22:24,628 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [705565097] [2019-11-15 21:22:24,629 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:24,677 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-11-15 21:22:24,677 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:22:24,678 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 21:22:24,679 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:24,684 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:24,684 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:24,684 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-15 21:22:24,684 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266507596] [2019-11-15 21:22:24,685 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 21:22:24,685 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:24,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 21:22:24,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-15 21:22:24,689 INFO L87 Difference]: Start difference. First operand 4377 states and 6353 transitions. Second operand 6 states. [2019-11-15 21:22:24,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:24,789 INFO L93 Difference]: Finished difference Result 7069 states and 10425 transitions. [2019-11-15 21:22:24,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 21:22:24,790 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2019-11-15 21:22:24,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:24,803 INFO L225 Difference]: With dead ends: 7069 [2019-11-15 21:22:24,803 INFO L226 Difference]: Without dead ends: 7067 [2019-11-15 21:22:24,809 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-15 21:22:24,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7067 states. [2019-11-15 21:22:24,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7067 to 5729. [2019-11-15 21:22:24,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5729 states. [2019-11-15 21:22:24,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5729 states to 5729 states and 8265 transitions. [2019-11-15 21:22:24,959 INFO L78 Accepts]: Start accepts. Automaton has 5729 states and 8265 transitions. Word has length 36 [2019-11-15 21:22:24,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:24,960 INFO L462 AbstractCegarLoop]: Abstraction has 5729 states and 8265 transitions. [2019-11-15 21:22:24,960 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 21:22:24,960 INFO L276 IsEmpty]: Start isEmpty. Operand 5729 states and 8265 transitions. [2019-11-15 21:22:24,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-15 21:22:24,962 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:24,962 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1] [2019-11-15 21:22:25,165 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:25,166 INFO L410 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:25,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:25,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1137071253, now seen corresponding path program 3 times [2019-11-15 21:22:25,167 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:25,167 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522071075] [2019-11-15 21:22:25,167 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:25,167 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:25,168 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:25,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:25,215 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:25,215 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522071075] [2019-11-15 21:22:25,215 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40804177] [2019-11-15 21:22:25,216 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:25,261 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-11-15 21:22:25,262 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:22:25,262 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 21:22:25,269 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:25,316 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:25,316 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:25,316 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-15 21:22:25,317 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356390795] [2019-11-15 21:22:25,317 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 21:22:25,317 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:25,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 21:22:25,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-15 21:22:25,317 INFO L87 Difference]: Start difference. First operand 5729 states and 8265 transitions. Second operand 6 states. [2019-11-15 21:22:25,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:25,441 INFO L93 Difference]: Finished difference Result 8806 states and 12809 transitions. [2019-11-15 21:22:25,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 21:22:25,441 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 41 [2019-11-15 21:22:25,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:25,455 INFO L225 Difference]: With dead ends: 8806 [2019-11-15 21:22:25,456 INFO L226 Difference]: Without dead ends: 8805 [2019-11-15 21:22:25,463 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-15 21:22:25,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8805 states. [2019-11-15 21:22:25,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8805 to 6453. [2019-11-15 21:22:25,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6453 states. [2019-11-15 21:22:25,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6453 states to 6453 states and 9305 transitions. [2019-11-15 21:22:25,609 INFO L78 Accepts]: Start accepts. Automaton has 6453 states and 9305 transitions. Word has length 41 [2019-11-15 21:22:25,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:25,609 INFO L462 AbstractCegarLoop]: Abstraction has 6453 states and 9305 transitions. [2019-11-15 21:22:25,609 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 21:22:25,609 INFO L276 IsEmpty]: Start isEmpty. Operand 6453 states and 9305 transitions. [2019-11-15 21:22:25,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-15 21:22:25,611 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:25,611 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 1, 1] [2019-11-15 21:22:25,814 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:25,817 INFO L410 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:25,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:25,817 INFO L82 PathProgramCache]: Analyzing trace with hash 589297713, now seen corresponding path program 4 times [2019-11-15 21:22:25,818 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:25,818 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810989677] [2019-11-15 21:22:25,818 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:25,818 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:25,818 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:25,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:25,868 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:25,868 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810989677] [2019-11-15 21:22:25,869 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216589905] [2019-11-15 21:22:25,869 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:25,917 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-15 21:22:25,918 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:22:25,918 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-15 21:22:25,919 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:25,927 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:25,927 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:25,927 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2019-11-15 21:22:25,927 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837551191] [2019-11-15 21:22:25,928 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 21:22:25,928 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:25,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 21:22:25,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-15 21:22:25,928 INFO L87 Difference]: Start difference. First operand 6453 states and 9305 transitions. Second operand 7 states. [2019-11-15 21:22:26,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:26,061 INFO L93 Difference]: Finished difference Result 9500 states and 13815 transitions. [2019-11-15 21:22:26,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 21:22:26,062 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2019-11-15 21:22:26,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:26,078 INFO L225 Difference]: With dead ends: 9500 [2019-11-15 21:22:26,078 INFO L226 Difference]: Without dead ends: 9499 [2019-11-15 21:22:26,085 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-15 21:22:26,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9499 states. [2019-11-15 21:22:26,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9499 to 7025. [2019-11-15 21:22:26,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7025 states. [2019-11-15 21:22:26,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7025 states to 7025 states and 10131 transitions. [2019-11-15 21:22:26,233 INFO L78 Accepts]: Start accepts. Automaton has 7025 states and 10131 transitions. Word has length 41 [2019-11-15 21:22:26,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:26,234 INFO L462 AbstractCegarLoop]: Abstraction has 7025 states and 10131 transitions. [2019-11-15 21:22:26,234 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 21:22:26,234 INFO L276 IsEmpty]: Start isEmpty. Operand 7025 states and 10131 transitions. [2019-11-15 21:22:26,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-11-15 21:22:26,235 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:26,236 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 1, 1] [2019-11-15 21:22:26,439 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:26,440 INFO L410 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:26,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:26,440 INFO L82 PathProgramCache]: Analyzing trace with hash 644163159, now seen corresponding path program 5 times [2019-11-15 21:22:26,440 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:26,441 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138195653] [2019-11-15 21:22:26,441 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:26,441 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:26,441 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:26,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:26,499 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:26,500 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138195653] [2019-11-15 21:22:26,500 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594312499] [2019-11-15 21:22:26,500 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:26,547 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-11-15 21:22:26,547 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:22:26,548 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-15 21:22:26,549 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:26,555 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:26,555 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:26,555 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2019-11-15 21:22:26,555 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490435093] [2019-11-15 21:22:26,556 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 21:22:26,556 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:26,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 21:22:26,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-11-15 21:22:26,556 INFO L87 Difference]: Start difference. First operand 7025 states and 10131 transitions. Second operand 8 states. [2019-11-15 21:22:26,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:26,715 INFO L93 Difference]: Finished difference Result 10381 states and 15206 transitions. [2019-11-15 21:22:26,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 21:22:26,716 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2019-11-15 21:22:26,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:26,732 INFO L225 Difference]: With dead ends: 10381 [2019-11-15 21:22:26,732 INFO L226 Difference]: Without dead ends: 10379 [2019-11-15 21:22:26,740 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-11-15 21:22:26,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10379 states. [2019-11-15 21:22:26,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10379 to 8665. [2019-11-15 21:22:26,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8665 states. [2019-11-15 21:22:26,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8665 states to 8665 states and 12438 transitions. [2019-11-15 21:22:26,895 INFO L78 Accepts]: Start accepts. Automaton has 8665 states and 12438 transitions. Word has length 42 [2019-11-15 21:22:26,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:26,896 INFO L462 AbstractCegarLoop]: Abstraction has 8665 states and 12438 transitions. [2019-11-15 21:22:26,896 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 21:22:26,896 INFO L276 IsEmpty]: Start isEmpty. Operand 8665 states and 12438 transitions. [2019-11-15 21:22:26,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-11-15 21:22:26,898 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:26,898 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1] [2019-11-15 21:22:27,101 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:27,107 INFO L410 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:27,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:27,107 INFO L82 PathProgramCache]: Analyzing trace with hash -809708433, now seen corresponding path program 4 times [2019-11-15 21:22:27,107 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:27,107 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954182519] [2019-11-15 21:22:27,107 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:27,108 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:27,108 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:27,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:27,172 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:27,172 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954182519] [2019-11-15 21:22:27,172 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983025073] [2019-11-15 21:22:27,172 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:27,209 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-15 21:22:27,210 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:22:27,210 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-15 21:22:27,213 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:27,219 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:27,221 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:27,221 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2019-11-15 21:22:27,221 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171216467] [2019-11-15 21:22:27,221 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 21:22:27,222 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:27,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 21:22:27,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-15 21:22:27,222 INFO L87 Difference]: Start difference. First operand 8665 states and 12438 transitions. Second operand 7 states. [2019-11-15 21:22:27,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:27,355 INFO L93 Difference]: Finished difference Result 13312 states and 19429 transitions. [2019-11-15 21:22:27,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 21:22:27,355 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2019-11-15 21:22:27,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:27,378 INFO L225 Difference]: With dead ends: 13312 [2019-11-15 21:22:27,378 INFO L226 Difference]: Without dead ends: 13310 [2019-11-15 21:22:27,382 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-15 21:22:27,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13310 states. [2019-11-15 21:22:27,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13310 to 10967. [2019-11-15 21:22:27,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10967 states. [2019-11-15 21:22:27,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10967 states to 10967 states and 15657 transitions. [2019-11-15 21:22:27,563 INFO L78 Accepts]: Start accepts. Automaton has 10967 states and 15657 transitions. Word has length 45 [2019-11-15 21:22:27,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:27,563 INFO L462 AbstractCegarLoop]: Abstraction has 10967 states and 15657 transitions. [2019-11-15 21:22:27,563 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 21:22:27,563 INFO L276 IsEmpty]: Start isEmpty. Operand 10967 states and 15657 transitions. [2019-11-15 21:22:27,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-11-15 21:22:27,566 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:27,566 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 1, 1] [2019-11-15 21:22:27,773 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:27,773 INFO L410 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:27,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:27,774 INFO L82 PathProgramCache]: Analyzing trace with hash -144620410, now seen corresponding path program 6 times [2019-11-15 21:22:27,774 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:27,774 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794120623] [2019-11-15 21:22:27,774 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:27,774 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:27,774 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:27,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:27,839 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:27,839 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794120623] [2019-11-15 21:22:27,839 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217859050] [2019-11-15 21:22:27,840 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:27,882 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-11-15 21:22:27,883 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:22:27,883 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 21:22:27,884 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:27,892 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:27,892 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:27,892 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2019-11-15 21:22:27,892 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492860082] [2019-11-15 21:22:27,894 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-15 21:22:27,894 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:27,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-15 21:22:27,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-11-15 21:22:27,895 INFO L87 Difference]: Start difference. First operand 10967 states and 15657 transitions. Second operand 9 states. [2019-11-15 21:22:28,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:28,121 INFO L93 Difference]: Finished difference Result 15622 states and 22665 transitions. [2019-11-15 21:22:28,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-15 21:22:28,122 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2019-11-15 21:22:28,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:28,142 INFO L225 Difference]: With dead ends: 15622 [2019-11-15 21:22:28,143 INFO L226 Difference]: Without dead ends: 15620 [2019-11-15 21:22:28,146 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-11-15 21:22:28,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15620 states. [2019-11-15 21:22:28,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15620 to 13091. [2019-11-15 21:22:28,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13091 states. [2019-11-15 21:22:28,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13091 states to 13091 states and 18609 transitions. [2019-11-15 21:22:28,346 INFO L78 Accepts]: Start accepts. Automaton has 13091 states and 18609 transitions. Word has length 49 [2019-11-15 21:22:28,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:28,346 INFO L462 AbstractCegarLoop]: Abstraction has 13091 states and 18609 transitions. [2019-11-15 21:22:28,346 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-15 21:22:28,346 INFO L276 IsEmpty]: Start isEmpty. Operand 13091 states and 18609 transitions. [2019-11-15 21:22:28,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-11-15 21:22:28,351 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:28,351 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 1, 1] [2019-11-15 21:22:28,554 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:28,555 INFO L410 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:28,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:28,556 INFO L82 PathProgramCache]: Analyzing trace with hash 2004605083, now seen corresponding path program 5 times [2019-11-15 21:22:28,556 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:28,556 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282353418] [2019-11-15 21:22:28,556 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:28,556 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:28,556 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:28,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:28,631 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:28,632 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282353418] [2019-11-15 21:22:28,632 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629754154] [2019-11-15 21:22:28,632 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:28,673 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-11-15 21:22:28,673 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:22:28,674 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-15 21:22:28,674 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:28,683 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:28,684 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:28,684 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2019-11-15 21:22:28,684 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655024255] [2019-11-15 21:22:28,685 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 21:22:28,685 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:28,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 21:22:28,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-11-15 21:22:28,686 INFO L87 Difference]: Start difference. First operand 13091 states and 18609 transitions. Second operand 8 states. [2019-11-15 21:22:28,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:28,877 INFO L93 Difference]: Finished difference Result 19890 states and 28521 transitions. [2019-11-15 21:22:28,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 21:22:28,877 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2019-11-15 21:22:28,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:28,907 INFO L225 Difference]: With dead ends: 19890 [2019-11-15 21:22:28,907 INFO L226 Difference]: Without dead ends: 19889 [2019-11-15 21:22:28,913 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-11-15 21:22:28,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19889 states. [2019-11-15 21:22:29,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19889 to 14129. [2019-11-15 21:22:29,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14129 states. [2019-11-15 21:22:29,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14129 states to 14129 states and 20097 transitions. [2019-11-15 21:22:29,236 INFO L78 Accepts]: Start accepts. Automaton has 14129 states and 20097 transitions. Word has length 49 [2019-11-15 21:22:29,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:29,236 INFO L462 AbstractCegarLoop]: Abstraction has 14129 states and 20097 transitions. [2019-11-15 21:22:29,236 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 21:22:29,236 INFO L276 IsEmpty]: Start isEmpty. Operand 14129 states and 20097 transitions. [2019-11-15 21:22:29,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-11-15 21:22:29,239 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:29,239 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1] [2019-11-15 21:22:29,442 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:29,442 INFO L410 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:29,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:29,443 INFO L82 PathProgramCache]: Analyzing trace with hash -85375778, now seen corresponding path program 4 times [2019-11-15 21:22:29,443 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:29,443 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621118989] [2019-11-15 21:22:29,443 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:29,443 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:29,443 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:29,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:29,504 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:29,505 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621118989] [2019-11-15 21:22:29,505 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142207] [2019-11-15 21:22:29,505 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:29,543 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-15 21:22:29,543 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:22:29,544 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-15 21:22:29,545 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:29,552 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:29,552 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:29,553 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2019-11-15 21:22:29,553 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823646379] [2019-11-15 21:22:29,554 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 21:22:29,554 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:29,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 21:22:29,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-15 21:22:29,554 INFO L87 Difference]: Start difference. First operand 14129 states and 20097 transitions. Second operand 7 states. [2019-11-15 21:22:29,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:29,737 INFO L93 Difference]: Finished difference Result 20774 states and 29837 transitions. [2019-11-15 21:22:29,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 21:22:29,738 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-11-15 21:22:29,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:29,761 INFO L225 Difference]: With dead ends: 20774 [2019-11-15 21:22:29,762 INFO L226 Difference]: Without dead ends: 20773 [2019-11-15 21:22:29,769 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-15 21:22:29,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20773 states. [2019-11-15 21:22:29,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20773 to 15381. [2019-11-15 21:22:29,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15381 states. [2019-11-15 21:22:30,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15381 states to 15381 states and 21881 transitions. [2019-11-15 21:22:30,024 INFO L78 Accepts]: Start accepts. Automaton has 15381 states and 21881 transitions. Word has length 51 [2019-11-15 21:22:30,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:30,024 INFO L462 AbstractCegarLoop]: Abstraction has 15381 states and 21881 transitions. [2019-11-15 21:22:30,024 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 21:22:30,025 INFO L276 IsEmpty]: Start isEmpty. Operand 15381 states and 21881 transitions. [2019-11-15 21:22:30,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-11-15 21:22:30,027 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:30,028 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 1, 1] [2019-11-15 21:22:30,231 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:30,231 INFO L410 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:30,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:30,231 INFO L82 PathProgramCache]: Analyzing trace with hash -884758135, now seen corresponding path program 5 times [2019-11-15 21:22:30,231 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:30,231 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391569723] [2019-11-15 21:22:30,231 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:30,232 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:30,232 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:30,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:30,291 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:30,291 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391569723] [2019-11-15 21:22:30,291 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331811350] [2019-11-15 21:22:30,291 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:30,336 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-11-15 21:22:30,336 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:22:30,337 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-15 21:22:30,338 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:30,348 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:30,350 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:30,350 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2019-11-15 21:22:30,350 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571833390] [2019-11-15 21:22:30,351 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 21:22:30,352 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:30,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 21:22:30,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-11-15 21:22:30,352 INFO L87 Difference]: Start difference. First operand 15381 states and 21881 transitions. Second operand 8 states. [2019-11-15 21:22:30,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:30,548 INFO L93 Difference]: Finished difference Result 22697 states and 32841 transitions. [2019-11-15 21:22:30,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 21:22:30,549 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2019-11-15 21:22:30,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:30,578 INFO L225 Difference]: With dead ends: 22697 [2019-11-15 21:22:30,578 INFO L226 Difference]: Without dead ends: 22695 [2019-11-15 21:22:30,585 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-11-15 21:22:30,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22695 states. [2019-11-15 21:22:30,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22695 to 18973. [2019-11-15 21:22:30,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18973 states. [2019-11-15 21:22:31,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18973 states to 18973 states and 26864 transitions. [2019-11-15 21:22:31,025 INFO L78 Accepts]: Start accepts. Automaton has 18973 states and 26864 transitions. Word has length 54 [2019-11-15 21:22:31,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:31,025 INFO L462 AbstractCegarLoop]: Abstraction has 18973 states and 26864 transitions. [2019-11-15 21:22:31,025 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 21:22:31,025 INFO L276 IsEmpty]: Start isEmpty. Operand 18973 states and 26864 transitions. [2019-11-15 21:22:31,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-15 21:22:31,031 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:31,031 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 1, 1] [2019-11-15 21:22:31,234 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:31,234 INFO L410 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:31,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:31,235 INFO L82 PathProgramCache]: Analyzing trace with hash -931224713, now seen corresponding path program 7 times [2019-11-15 21:22:31,235 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:31,235 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045938542] [2019-11-15 21:22:31,235 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:31,235 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:31,235 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:31,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:31,319 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:31,319 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045938542] [2019-11-15 21:22:31,319 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083117139] [2019-11-15 21:22:31,319 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:31,363 INFO L256 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-15 21:22:31,364 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:31,374 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:31,374 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:31,375 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2019-11-15 21:22:31,375 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187542261] [2019-11-15 21:22:31,375 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-15 21:22:31,375 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:31,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-15 21:22:31,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-11-15 21:22:31,376 INFO L87 Difference]: Start difference. First operand 18973 states and 26864 transitions. Second operand 10 states. [2019-11-15 21:22:31,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:31,604 INFO L93 Difference]: Finished difference Result 26251 states and 37778 transitions. [2019-11-15 21:22:31,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-15 21:22:31,605 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 56 [2019-11-15 21:22:31,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:31,642 INFO L225 Difference]: With dead ends: 26251 [2019-11-15 21:22:31,642 INFO L226 Difference]: Without dead ends: 26249 [2019-11-15 21:22:31,650 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-11-15 21:22:31,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26249 states. [2019-11-15 21:22:32,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26249 to 22311. [2019-11-15 21:22:32,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22311 states. [2019-11-15 21:22:32,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22311 states to 22311 states and 31473 transitions. [2019-11-15 21:22:32,200 INFO L78 Accepts]: Start accepts. Automaton has 22311 states and 31473 transitions. Word has length 56 [2019-11-15 21:22:32,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:32,200 INFO L462 AbstractCegarLoop]: Abstraction has 22311 states and 31473 transitions. [2019-11-15 21:22:32,200 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-15 21:22:32,201 INFO L276 IsEmpty]: Start isEmpty. Operand 22311 states and 31473 transitions. [2019-11-15 21:22:32,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-11-15 21:22:32,204 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:32,204 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 1, 1] [2019-11-15 21:22:32,407 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:32,407 INFO L410 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:32,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:32,407 INFO L82 PathProgramCache]: Analyzing trace with hash -2041729275, now seen corresponding path program 6 times [2019-11-15 21:22:32,407 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:32,407 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636633135] [2019-11-15 21:22:32,407 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:32,407 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:32,407 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:32,484 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:32,484 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636633135] [2019-11-15 21:22:32,485 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [415435273] [2019-11-15 21:22:32,485 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:32,529 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-11-15 21:22:32,529 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:22:32,530 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 21:22:32,531 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:32,540 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:32,540 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:32,540 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2019-11-15 21:22:32,541 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744465903] [2019-11-15 21:22:32,541 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-15 21:22:32,541 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:32,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-15 21:22:32,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-11-15 21:22:32,542 INFO L87 Difference]: Start difference. First operand 22311 states and 31473 transitions. Second operand 9 states. [2019-11-15 21:22:32,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:32,792 INFO L93 Difference]: Finished difference Result 32955 states and 46932 transitions. [2019-11-15 21:22:32,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-15 21:22:32,793 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 57 [2019-11-15 21:22:32,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:32,834 INFO L225 Difference]: With dead ends: 32955 [2019-11-15 21:22:32,834 INFO L226 Difference]: Without dead ends: 32954 [2019-11-15 21:22:32,844 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-11-15 21:22:32,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32954 states. [2019-11-15 21:22:33,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32954 to 23705. [2019-11-15 21:22:33,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23705 states. [2019-11-15 21:22:33,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23705 states to 23705 states and 33462 transitions. [2019-11-15 21:22:33,248 INFO L78 Accepts]: Start accepts. Automaton has 23705 states and 33462 transitions. Word has length 57 [2019-11-15 21:22:33,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:33,248 INFO L462 AbstractCegarLoop]: Abstraction has 23705 states and 33462 transitions. [2019-11-15 21:22:33,248 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-15 21:22:33,248 INFO L276 IsEmpty]: Start isEmpty. Operand 23705 states and 33462 transitions. [2019-11-15 21:22:33,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-11-15 21:22:33,252 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:33,253 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 1, 1] [2019-11-15 21:22:33,456 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:33,456 INFO L410 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:33,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:33,456 INFO L82 PathProgramCache]: Analyzing trace with hash 2087316113, now seen corresponding path program 5 times [2019-11-15 21:22:33,456 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:33,457 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493817229] [2019-11-15 21:22:33,457 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:33,457 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:33,457 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:33,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:33,522 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:33,523 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493817229] [2019-11-15 21:22:33,523 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1904294535] [2019-11-15 21:22:33,524 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:33,567 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-11-15 21:22:33,567 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:22:33,568 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-15 21:22:33,569 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:33,578 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:33,579 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:33,579 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2019-11-15 21:22:33,579 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443514084] [2019-11-15 21:22:33,580 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 21:22:33,580 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:33,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 21:22:33,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-11-15 21:22:33,580 INFO L87 Difference]: Start difference. First operand 23705 states and 33462 transitions. Second operand 8 states. [2019-11-15 21:22:34,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:34,046 INFO L93 Difference]: Finished difference Result 33669 states and 48018 transitions. [2019-11-15 21:22:34,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 21:22:34,047 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2019-11-15 21:22:34,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:34,084 INFO L225 Difference]: With dead ends: 33669 [2019-11-15 21:22:34,084 INFO L226 Difference]: Without dead ends: 33668 [2019-11-15 21:22:34,091 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-11-15 21:22:34,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33668 states. [2019-11-15 21:22:34,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33668 to 25269. [2019-11-15 21:22:34,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25269 states. [2019-11-15 21:22:34,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25269 states to 25269 states and 35684 transitions. [2019-11-15 21:22:34,453 INFO L78 Accepts]: Start accepts. Automaton has 25269 states and 35684 transitions. Word has length 61 [2019-11-15 21:22:34,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:34,453 INFO L462 AbstractCegarLoop]: Abstraction has 25269 states and 35684 transitions. [2019-11-15 21:22:34,453 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 21:22:34,453 INFO L276 IsEmpty]: Start isEmpty. Operand 25269 states and 35684 transitions. [2019-11-15 21:22:34,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-11-15 21:22:34,458 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:34,458 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 1, 1] [2019-11-15 21:22:34,662 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:34,662 INFO L410 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:34,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:34,662 INFO L82 PathProgramCache]: Analyzing trace with hash 1714864998, now seen corresponding path program 8 times [2019-11-15 21:22:34,662 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:34,662 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650223630] [2019-11-15 21:22:34,662 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:34,663 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:34,663 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:34,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:34,769 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:34,769 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650223630] [2019-11-15 21:22:34,769 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471923916] [2019-11-15 21:22:34,769 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:34,817 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 21:22:34,817 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:22:34,818 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-15 21:22:34,819 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:34,831 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:34,836 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:34,836 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2019-11-15 21:22:34,836 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999857392] [2019-11-15 21:22:34,837 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-15 21:22:34,837 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:34,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-15 21:22:34,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-11-15 21:22:34,838 INFO L87 Difference]: Start difference. First operand 25269 states and 35684 transitions. Second operand 11 states. [2019-11-15 21:22:35,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:35,102 INFO L93 Difference]: Finished difference Result 34130 states and 48968 transitions. [2019-11-15 21:22:35,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-15 21:22:35,103 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 63 [2019-11-15 21:22:35,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:35,139 INFO L225 Difference]: With dead ends: 34130 [2019-11-15 21:22:35,140 INFO L226 Difference]: Without dead ends: 34128 [2019-11-15 21:22:35,147 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-11-15 21:22:35,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34128 states. [2019-11-15 21:22:35,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34128 to 29345. [2019-11-15 21:22:35,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29345 states. [2019-11-15 21:22:35,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29345 states to 29345 states and 41306 transitions. [2019-11-15 21:22:35,752 INFO L78 Accepts]: Start accepts. Automaton has 29345 states and 41306 transitions. Word has length 63 [2019-11-15 21:22:35,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:35,752 INFO L462 AbstractCegarLoop]: Abstraction has 29345 states and 41306 transitions. [2019-11-15 21:22:35,752 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-15 21:22:35,753 INFO L276 IsEmpty]: Start isEmpty. Operand 29345 states and 41306 transitions. [2019-11-15 21:22:35,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-11-15 21:22:35,756 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:35,756 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 1, 1] [2019-11-15 21:22:35,956 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:35,956 INFO L410 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:35,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:35,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1360130479, now seen corresponding path program 6 times [2019-11-15 21:22:35,957 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:35,957 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131592651] [2019-11-15 21:22:35,957 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:35,957 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:35,957 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:35,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:36,023 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:36,023 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131592651] [2019-11-15 21:22:36,024 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141777292] [2019-11-15 21:22:36,024 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:36,073 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-11-15 21:22:36,074 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:22:36,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 21:22:36,075 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:36,085 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:36,086 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:36,086 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2019-11-15 21:22:36,086 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729879529] [2019-11-15 21:22:36,087 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-15 21:22:36,087 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:36,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-15 21:22:36,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-11-15 21:22:36,088 INFO L87 Difference]: Start difference. First operand 29345 states and 41306 transitions. Second operand 9 states. [2019-11-15 21:22:36,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:36,374 INFO L93 Difference]: Finished difference Result 41880 states and 59971 transitions. [2019-11-15 21:22:36,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-15 21:22:36,374 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 63 [2019-11-15 21:22:36,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:36,419 INFO L225 Difference]: With dead ends: 41880 [2019-11-15 21:22:36,420 INFO L226 Difference]: Without dead ends: 41878 [2019-11-15 21:22:36,429 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-11-15 21:22:36,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41878 states. [2019-11-15 21:22:36,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41878 to 35465. [2019-11-15 21:22:36,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35465 states. [2019-11-15 21:22:36,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35465 states to 35465 states and 49718 transitions. [2019-11-15 21:22:36,974 INFO L78 Accepts]: Start accepts. Automaton has 35465 states and 49718 transitions. Word has length 63 [2019-11-15 21:22:36,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:36,974 INFO L462 AbstractCegarLoop]: Abstraction has 35465 states and 49718 transitions. [2019-11-15 21:22:36,974 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-15 21:22:36,974 INFO L276 IsEmpty]: Start isEmpty. Operand 35465 states and 49718 transitions. [2019-11-15 21:22:36,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-15 21:22:36,979 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:36,980 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 1, 1] [2019-11-15 21:22:37,182 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:37,183 INFO L410 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:37,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:37,184 INFO L82 PathProgramCache]: Analyzing trace with hash -851477649, now seen corresponding path program 7 times [2019-11-15 21:22:37,184 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:37,185 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510763293] [2019-11-15 21:22:37,185 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:37,185 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:37,185 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:37,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:37,278 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:37,279 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510763293] [2019-11-15 21:22:37,279 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711292429] [2019-11-15 21:22:37,279 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:37,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:37,738 INFO L256 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-15 21:22:37,739 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:37,749 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:37,750 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:37,750 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2019-11-15 21:22:37,750 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885448215] [2019-11-15 21:22:37,750 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-15 21:22:37,750 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:37,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-15 21:22:37,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-11-15 21:22:37,751 INFO L87 Difference]: Start difference. First operand 35465 states and 49718 transitions. Second operand 10 states. [2019-11-15 21:22:38,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:38,036 INFO L93 Difference]: Finished difference Result 51129 states and 72397 transitions. [2019-11-15 21:22:38,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-15 21:22:38,036 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 65 [2019-11-15 21:22:38,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:38,083 INFO L225 Difference]: With dead ends: 51129 [2019-11-15 21:22:38,083 INFO L226 Difference]: Without dead ends: 51128 [2019-11-15 21:22:38,092 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-11-15 21:22:38,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51128 states. [2019-11-15 21:22:38,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51128 to 37261. [2019-11-15 21:22:38,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37261 states. [2019-11-15 21:22:38,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37261 states to 37261 states and 52271 transitions. [2019-11-15 21:22:38,547 INFO L78 Accepts]: Start accepts. Automaton has 37261 states and 52271 transitions. Word has length 65 [2019-11-15 21:22:38,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:38,547 INFO L462 AbstractCegarLoop]: Abstraction has 37261 states and 52271 transitions. [2019-11-15 21:22:38,547 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-15 21:22:38,547 INFO L276 IsEmpty]: Start isEmpty. Operand 37261 states and 52271 transitions. [2019-11-15 21:22:38,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-11-15 21:22:38,552 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:38,552 INFO L380 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 1, 1] [2019-11-15 21:22:38,754 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:38,755 INFO L410 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:38,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:38,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1457084265, now seen corresponding path program 9 times [2019-11-15 21:22:38,755 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:38,755 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988088590] [2019-11-15 21:22:38,755 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:38,755 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:38,755 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:38,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:38,857 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:38,857 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988088590] [2019-11-15 21:22:38,858 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487347728] [2019-11-15 21:22:38,858 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:38,909 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2019-11-15 21:22:38,909 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:22:38,910 INFO L256 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-15 21:22:38,911 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:38,920 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:38,921 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:38,921 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2019-11-15 21:22:38,921 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656025247] [2019-11-15 21:22:38,921 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-15 21:22:38,922 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:38,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-15 21:22:38,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-11-15 21:22:38,922 INFO L87 Difference]: Start difference. First operand 37261 states and 52271 transitions. Second operand 12 states. [2019-11-15 21:22:39,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:39,493 INFO L93 Difference]: Finished difference Result 49299 states and 70254 transitions. [2019-11-15 21:22:39,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-15 21:22:39,494 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 70 [2019-11-15 21:22:39,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:39,536 INFO L225 Difference]: With dead ends: 49299 [2019-11-15 21:22:39,536 INFO L226 Difference]: Without dead ends: 49297 [2019-11-15 21:22:39,543 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-11-15 21:22:39,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49297 states. [2019-11-15 21:22:39,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49297 to 42813. [2019-11-15 21:22:39,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42813 states. [2019-11-15 21:22:39,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42813 states to 42813 states and 59889 transitions. [2019-11-15 21:22:39,989 INFO L78 Accepts]: Start accepts. Automaton has 42813 states and 59889 transitions. Word has length 70 [2019-11-15 21:22:39,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:39,989 INFO L462 AbstractCegarLoop]: Abstraction has 42813 states and 59889 transitions. [2019-11-15 21:22:39,989 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-15 21:22:39,989 INFO L276 IsEmpty]: Start isEmpty. Operand 42813 states and 59889 transitions. [2019-11-15 21:22:39,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-11-15 21:22:39,993 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:39,993 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1] [2019-11-15 21:22:40,193 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:40,194 INFO L410 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:40,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:40,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1593226108, now seen corresponding path program 6 times [2019-11-15 21:22:40,194 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:40,194 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441298726] [2019-11-15 21:22:40,195 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:40,195 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:40,195 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:40,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:40,259 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:40,260 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441298726] [2019-11-15 21:22:40,260 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343692870] [2019-11-15 21:22:40,261 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:40,308 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-11-15 21:22:40,308 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:22:40,309 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 21:22:40,310 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:40,320 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:40,321 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:40,321 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2019-11-15 21:22:40,321 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940178471] [2019-11-15 21:22:40,322 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-15 21:22:40,322 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:40,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-15 21:22:40,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-11-15 21:22:40,322 INFO L87 Difference]: Start difference. First operand 42813 states and 59889 transitions. Second operand 9 states. [2019-11-15 21:22:40,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:40,645 INFO L93 Difference]: Finished difference Result 59102 states and 83563 transitions. [2019-11-15 21:22:40,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-15 21:22:40,645 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2019-11-15 21:22:40,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:40,699 INFO L225 Difference]: With dead ends: 59102 [2019-11-15 21:22:40,699 INFO L226 Difference]: Without dead ends: 59101 [2019-11-15 21:22:40,709 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-11-15 21:22:40,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59101 states. [2019-11-15 21:22:41,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59101 to 45005. [2019-11-15 21:22:41,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45005 states. [2019-11-15 21:22:41,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45005 states to 45005 states and 62987 transitions. [2019-11-15 21:22:41,456 INFO L78 Accepts]: Start accepts. Automaton has 45005 states and 62987 transitions. Word has length 71 [2019-11-15 21:22:41,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:41,456 INFO L462 AbstractCegarLoop]: Abstraction has 45005 states and 62987 transitions. [2019-11-15 21:22:41,456 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-15 21:22:41,456 INFO L276 IsEmpty]: Start isEmpty. Operand 45005 states and 62987 transitions. [2019-11-15 21:22:41,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-11-15 21:22:41,460 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:41,460 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 1, 1] [2019-11-15 21:22:41,660 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:41,661 INFO L410 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:41,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:41,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1572566089, now seen corresponding path program 7 times [2019-11-15 21:22:41,661 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:41,661 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203552470] [2019-11-15 21:22:41,662 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:41,662 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:41,662 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:41,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:41,759 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:41,759 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203552470] [2019-11-15 21:22:41,760 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606286912] [2019-11-15 21:22:41,760 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:41,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:41,807 INFO L256 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-15 21:22:41,808 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:41,818 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:41,818 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:41,819 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2019-11-15 21:22:41,819 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855510818] [2019-11-15 21:22:41,819 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-15 21:22:41,820 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:41,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-15 21:22:41,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-11-15 21:22:41,820 INFO L87 Difference]: Start difference. First operand 45005 states and 62987 transitions. Second operand 10 states. [2019-11-15 21:22:42,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:42,225 INFO L93 Difference]: Finished difference Result 62465 states and 88920 transitions. [2019-11-15 21:22:42,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-15 21:22:42,225 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 72 [2019-11-15 21:22:42,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:42,300 INFO L225 Difference]: With dead ends: 62465 [2019-11-15 21:22:42,301 INFO L226 Difference]: Without dead ends: 62463 [2019-11-15 21:22:42,316 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-11-15 21:22:42,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62463 states. [2019-11-15 21:22:42,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62463 to 53489. [2019-11-15 21:22:42,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53489 states. [2019-11-15 21:22:42,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53489 states to 53489 states and 74598 transitions. [2019-11-15 21:22:42,934 INFO L78 Accepts]: Start accepts. Automaton has 53489 states and 74598 transitions. Word has length 72 [2019-11-15 21:22:42,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:42,934 INFO L462 AbstractCegarLoop]: Abstraction has 53489 states and 74598 transitions. [2019-11-15 21:22:42,934 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-15 21:22:42,934 INFO L276 IsEmpty]: Start isEmpty. Operand 53489 states and 74598 transitions. [2019-11-15 21:22:42,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-11-15 21:22:42,939 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:42,939 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 1, 1] [2019-11-15 21:22:43,140 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:43,140 INFO L410 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:43,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:43,140 INFO L82 PathProgramCache]: Analyzing trace with hash 2147171801, now seen corresponding path program 8 times [2019-11-15 21:22:43,140 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:43,141 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398847501] [2019-11-15 21:22:43,141 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:43,141 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:43,141 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:43,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:43,260 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:43,260 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398847501] [2019-11-15 21:22:43,260 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746928604] [2019-11-15 21:22:43,260 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:43,297 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 21:22:43,297 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:22:43,298 INFO L256 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-15 21:22:43,302 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:43,327 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:43,327 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:43,327 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2019-11-15 21:22:43,327 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553301086] [2019-11-15 21:22:43,328 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-15 21:22:43,328 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:43,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-15 21:22:43,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-11-15 21:22:43,329 INFO L87 Difference]: Start difference. First operand 53489 states and 74598 transitions. Second operand 11 states. [2019-11-15 21:22:43,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:43,849 INFO L93 Difference]: Finished difference Result 75498 states and 106380 transitions. [2019-11-15 21:22:43,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-15 21:22:43,850 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 73 [2019-11-15 21:22:43,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:43,915 INFO L225 Difference]: With dead ends: 75498 [2019-11-15 21:22:43,915 INFO L226 Difference]: Without dead ends: 75497 [2019-11-15 21:22:43,926 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-11-15 21:22:43,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75497 states. [2019-11-15 21:22:44,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75497 to 55733. [2019-11-15 21:22:44,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55733 states. [2019-11-15 21:22:44,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55733 states to 55733 states and 77778 transitions. [2019-11-15 21:22:44,668 INFO L78 Accepts]: Start accepts. Automaton has 55733 states and 77778 transitions. Word has length 73 [2019-11-15 21:22:44,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:44,669 INFO L462 AbstractCegarLoop]: Abstraction has 55733 states and 77778 transitions. [2019-11-15 21:22:44,669 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-15 21:22:44,669 INFO L276 IsEmpty]: Start isEmpty. Operand 55733 states and 77778 transitions. [2019-11-15 21:22:44,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-11-15 21:22:44,673 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:44,674 INFO L380 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 1, 1] [2019-11-15 21:22:44,876 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:44,876 INFO L410 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:44,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:44,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1519696454, now seen corresponding path program 10 times [2019-11-15 21:22:44,877 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:44,877 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785603989] [2019-11-15 21:22:44,877 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:44,877 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:44,877 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:44,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:44,927 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2019-11-15 21:22:44,928 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785603989] [2019-11-15 21:22:44,928 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688852573] [2019-11-15 21:22:44,928 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:44,978 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-15 21:22:44,979 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:22:44,980 INFO L256 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-15 21:22:44,981 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:45,172 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 375 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:45,172 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-15 21:22:45,173 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [3] total 15 [2019-11-15 21:22:45,173 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687778605] [2019-11-15 21:22:45,175 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-15 21:22:45,175 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:45,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-15 21:22:45,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2019-11-15 21:22:45,175 INFO L87 Difference]: Start difference. First operand 55733 states and 77778 transitions. Second operand 13 states. [2019-11-15 21:22:45,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:45,787 INFO L93 Difference]: Finished difference Result 74113 states and 102475 transitions. [2019-11-15 21:22:45,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-15 21:22:45,787 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 77 [2019-11-15 21:22:45,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:45,789 INFO L225 Difference]: With dead ends: 74113 [2019-11-15 21:22:45,789 INFO L226 Difference]: Without dead ends: 1343 [2019-11-15 21:22:45,839 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2019-11-15 21:22:45,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2019-11-15 21:22:45,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 585. [2019-11-15 21:22:45,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2019-11-15 21:22:45,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 700 transitions. [2019-11-15 21:22:45,856 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 700 transitions. Word has length 77 [2019-11-15 21:22:45,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:45,856 INFO L462 AbstractCegarLoop]: Abstraction has 585 states and 700 transitions. [2019-11-15 21:22:45,856 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-15 21:22:45,857 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 700 transitions. [2019-11-15 21:22:45,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-11-15 21:22:45,858 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:45,858 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 1, 1] [2019-11-15 21:22:46,061 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:46,061 INFO L410 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:46,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:46,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1093517585, now seen corresponding path program 8 times [2019-11-15 21:22:46,062 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:46,062 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019697805] [2019-11-15 21:22:46,062 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:46,062 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:46,062 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:46,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:46,145 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:46,146 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019697805] [2019-11-15 21:22:46,146 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752570793] [2019-11-15 21:22:46,146 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:46,196 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 21:22:46,197 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:22:46,198 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-15 21:22:46,199 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:46,211 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:46,212 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:46,212 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2019-11-15 21:22:46,212 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815746985] [2019-11-15 21:22:46,212 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-15 21:22:46,212 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:46,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-15 21:22:46,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-11-15 21:22:46,213 INFO L87 Difference]: Start difference. First operand 585 states and 700 transitions. Second operand 11 states. [2019-11-15 21:22:46,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:46,281 INFO L93 Difference]: Finished difference Result 701 states and 822 transitions. [2019-11-15 21:22:46,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-15 21:22:46,282 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 81 [2019-11-15 21:22:46,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:46,282 INFO L225 Difference]: With dead ends: 701 [2019-11-15 21:22:46,282 INFO L226 Difference]: Without dead ends: 587 [2019-11-15 21:22:46,283 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-11-15 21:22:46,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2019-11-15 21:22:46,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 481. [2019-11-15 21:22:46,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2019-11-15 21:22:46,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 563 transitions. [2019-11-15 21:22:46,295 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 563 transitions. Word has length 81 [2019-11-15 21:22:46,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:46,296 INFO L462 AbstractCegarLoop]: Abstraction has 481 states and 563 transitions. [2019-11-15 21:22:46,296 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-15 21:22:46,296 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 563 transitions. [2019-11-15 21:22:46,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-11-15 21:22:46,297 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:46,297 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 1, 1] [2019-11-15 21:22:46,500 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:46,501 INFO L410 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:46,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:46,501 INFO L82 PathProgramCache]: Analyzing trace with hash -944170313, now seen corresponding path program 7 times [2019-11-15 21:22:46,501 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:46,501 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792726374] [2019-11-15 21:22:46,502 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:46,502 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:46,502 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:46,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:46,595 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:46,596 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792726374] [2019-11-15 21:22:46,596 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090285500] [2019-11-15 21:22:46,596 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:46,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:46,645 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-15 21:22:46,646 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:46,664 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:46,665 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:46,665 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2019-11-15 21:22:46,665 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702608475] [2019-11-15 21:22:46,665 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-15 21:22:46,666 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:46,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-15 21:22:46,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-11-15 21:22:46,666 INFO L87 Difference]: Start difference. First operand 481 states and 563 transitions. Second operand 10 states. [2019-11-15 21:22:46,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:46,741 INFO L93 Difference]: Finished difference Result 546 states and 639 transitions. [2019-11-15 21:22:46,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-15 21:22:46,741 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2019-11-15 21:22:46,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:46,742 INFO L225 Difference]: With dead ends: 546 [2019-11-15 21:22:46,742 INFO L226 Difference]: Without dead ends: 379 [2019-11-15 21:22:46,742 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-11-15 21:22:46,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2019-11-15 21:22:46,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2019-11-15 21:22:46,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2019-11-15 21:22:46,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 417 transitions. [2019-11-15 21:22:46,753 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 417 transitions. Word has length 81 [2019-11-15 21:22:46,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:46,755 INFO L462 AbstractCegarLoop]: Abstraction has 379 states and 417 transitions. [2019-11-15 21:22:46,755 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-15 21:22:46,755 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 417 transitions. [2019-11-15 21:22:46,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-11-15 21:22:46,756 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:46,756 INFO L380 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 1, 1] [2019-11-15 21:22:46,959 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:46,960 INFO L410 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:46,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:46,960 INFO L82 PathProgramCache]: Analyzing trace with hash -2010450365, now seen corresponding path program 9 times [2019-11-15 21:22:46,961 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:46,961 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832454277] [2019-11-15 21:22:46,961 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:46,961 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:46,961 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:47,077 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:47,077 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832454277] [2019-11-15 21:22:47,078 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391789549] [2019-11-15 21:22:47,078 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:47,133 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2019-11-15 21:22:47,133 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:22:47,134 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-15 21:22:47,134 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:47,146 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:47,146 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:47,146 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2019-11-15 21:22:47,146 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731519731] [2019-11-15 21:22:47,147 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-15 21:22:47,147 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:47,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-15 21:22:47,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-11-15 21:22:47,147 INFO L87 Difference]: Start difference. First operand 379 states and 417 transitions. Second operand 12 states. [2019-11-15 21:22:47,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:47,187 INFO L93 Difference]: Finished difference Result 464 states and 501 transitions. [2019-11-15 21:22:47,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-15 21:22:47,187 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 81 [2019-11-15 21:22:47,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:47,188 INFO L225 Difference]: With dead ends: 464 [2019-11-15 21:22:47,188 INFO L226 Difference]: Without dead ends: 397 [2019-11-15 21:22:47,188 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-11-15 21:22:47,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2019-11-15 21:22:47,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 306. [2019-11-15 21:22:47,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2019-11-15 21:22:47,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 344 transitions. [2019-11-15 21:22:47,195 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 344 transitions. Word has length 81 [2019-11-15 21:22:47,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:47,195 INFO L462 AbstractCegarLoop]: Abstraction has 306 states and 344 transitions. [2019-11-15 21:22:47,195 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-15 21:22:47,195 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 344 transitions. [2019-11-15 21:22:47,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2019-11-15 21:22:47,196 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:47,196 INFO L380 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 1, 1] [2019-11-15 21:22:47,400 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:47,400 INFO L410 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:47,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:47,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1856106743, now seen corresponding path program 9 times [2019-11-15 21:22:47,401 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:47,401 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790864150] [2019-11-15 21:22:47,401 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:47,401 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:47,401 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:47,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:47,538 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:47,538 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790864150] [2019-11-15 21:22:47,538 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042989586] [2019-11-15 21:22:47,538 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:47,595 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2019-11-15 21:22:47,595 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:22:47,596 INFO L256 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-15 21:22:47,597 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:47,615 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:47,616 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:47,616 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2019-11-15 21:22:47,616 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202459565] [2019-11-15 21:22:47,617 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-15 21:22:47,617 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:47,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-15 21:22:47,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-11-15 21:22:47,617 INFO L87 Difference]: Start difference. First operand 306 states and 344 transitions. Second operand 12 states. [2019-11-15 21:22:47,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:47,649 INFO L93 Difference]: Finished difference Result 319 states and 357 transitions. [2019-11-15 21:22:47,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-15 21:22:47,649 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 90 [2019-11-15 21:22:47,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:47,650 INFO L225 Difference]: With dead ends: 319 [2019-11-15 21:22:47,650 INFO L226 Difference]: Without dead ends: 242 [2019-11-15 21:22:47,650 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-11-15 21:22:47,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2019-11-15 21:22:47,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 222. [2019-11-15 21:22:47,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2019-11-15 21:22:47,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 260 transitions. [2019-11-15 21:22:47,654 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 260 transitions. Word has length 90 [2019-11-15 21:22:47,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:47,655 INFO L462 AbstractCegarLoop]: Abstraction has 222 states and 260 transitions. [2019-11-15 21:22:47,655 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-15 21:22:47,655 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 260 transitions. [2019-11-15 21:22:47,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-11-15 21:22:47,655 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:47,656 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 1, 1] [2019-11-15 21:22:47,856 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:47,856 INFO L410 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:47,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:47,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1359938858, now seen corresponding path program 8 times [2019-11-15 21:22:47,857 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:47,857 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541347915] [2019-11-15 21:22:47,857 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:47,857 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:47,857 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:47,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:47,979 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:47,980 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541347915] [2019-11-15 21:22:47,980 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682681817] [2019-11-15 21:22:47,980 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:48,043 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 21:22:48,044 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:22:48,045 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-15 21:22:48,046 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:48,070 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:48,070 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:48,070 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2019-11-15 21:22:48,070 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709026204] [2019-11-15 21:22:48,071 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-15 21:22:48,071 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:48,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-15 21:22:48,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-11-15 21:22:48,071 INFO L87 Difference]: Start difference. First operand 222 states and 260 transitions. Second operand 11 states. [2019-11-15 21:22:48,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:48,116 INFO L93 Difference]: Finished difference Result 243 states and 280 transitions. [2019-11-15 21:22:48,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-15 21:22:48,117 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 91 [2019-11-15 21:22:48,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:48,117 INFO L225 Difference]: With dead ends: 243 [2019-11-15 21:22:48,118 INFO L226 Difference]: Without dead ends: 102 [2019-11-15 21:22:48,118 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-11-15 21:22:48,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2019-11-15 21:22:48,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2019-11-15 21:22:48,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-11-15 21:22:48,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 101 transitions. [2019-11-15 21:22:48,121 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 101 transitions. Word has length 91 [2019-11-15 21:22:48,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:48,121 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 101 transitions. [2019-11-15 21:22:48,122 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-15 21:22:48,122 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 101 transitions. [2019-11-15 21:22:48,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-11-15 21:22:48,122 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:22:48,123 INFO L380 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 1, 1] [2019-11-15 21:22:48,323 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:48,323 INFO L410 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:22:48,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:22:48,323 INFO L82 PathProgramCache]: Analyzing trace with hash -498811939, now seen corresponding path program 9 times [2019-11-15 21:22:48,324 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:22:48,324 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896433761] [2019-11-15 21:22:48,324 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:48,324 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:22:48,324 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:22:48,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:22:48,466 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:48,467 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896433761] [2019-11-15 21:22:48,467 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812849082] [2019-11-15 21:22:48,467 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:48,559 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2019-11-15 21:22:48,559 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:22:48,560 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-15 21:22:48,561 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:22:48,580 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:22:48,580 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:22:48,580 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2019-11-15 21:22:48,580 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768393054] [2019-11-15 21:22:48,581 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-15 21:22:48,581 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:22:48,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-15 21:22:48,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-11-15 21:22:48,581 INFO L87 Difference]: Start difference. First operand 102 states and 101 transitions. Second operand 12 states. [2019-11-15 21:22:48,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:22:48,600 INFO L93 Difference]: Finished difference Result 102 states and 101 transitions. [2019-11-15 21:22:48,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-15 21:22:48,600 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 101 [2019-11-15 21:22:48,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:22:48,601 INFO L225 Difference]: With dead ends: 102 [2019-11-15 21:22:48,601 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 21:22:48,601 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-11-15 21:22:48,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 21:22:48,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 21:22:48,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 21:22:48,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 21:22:48,602 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 101 [2019-11-15 21:22:48,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:22:48,602 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 21:22:48,602 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-15 21:22:48,602 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 21:22:48,602 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 21:22:48,803 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:22:48,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 21:23:09,820 WARN L191 SmtUtils]: Spent 21.00 s on a formula simplification. DAG size of input: 2170 DAG size of output: 1834 [2019-11-15 21:24:36,130 WARN L191 SmtUtils]: Spent 1.44 m on a formula simplification. DAG size of input: 1797 DAG size of output: 328 [2019-11-15 21:24:36,135 INFO L443 ceAbstractionStarter]: For program point L27(lines 27 31) no Hoare annotation was computed. [2019-11-15 21:24:36,135 INFO L443 ceAbstractionStarter]: For program point L23(lines 23 31) no Hoare annotation was computed. [2019-11-15 21:24:36,135 INFO L443 ceAbstractionStarter]: For program point L19-2(lines 19 33) no Hoare annotation was computed. [2019-11-15 21:24:36,135 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-15 21:24:36,135 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2019-11-15 21:24:36,135 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2019-11-15 21:24:36,135 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 21:24:36,136 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 21:24:36,136 INFO L443 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2019-11-15 21:24:36,136 INFO L443 ceAbstractionStarter]: For program point L28-1(line 28) no Hoare annotation was computed. [2019-11-15 21:24:36,136 INFO L443 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2019-11-15 21:24:36,136 INFO L443 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2019-11-15 21:24:36,136 INFO L443 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2019-11-15 21:24:36,136 INFO L443 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2019-11-15 21:24:36,136 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2019-11-15 21:24:36,136 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2019-11-15 21:24:36,136 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 21:24:36,136 INFO L443 ceAbstractionStarter]: For program point L29(lines 29 31) no Hoare annotation was computed. [2019-11-15 21:24:36,137 INFO L443 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2019-11-15 21:24:36,137 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2019-11-15 21:24:36,137 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2019-11-15 21:24:36,137 INFO L446 ceAbstractionStarter]: At program point L34(lines 13 35) the Hoare annotation is: true [2019-11-15 21:24:36,137 INFO L443 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2019-11-15 21:24:36,137 INFO L443 ceAbstractionStarter]: For program point L30-1(line 30) no Hoare annotation was computed. [2019-11-15 21:24:36,137 INFO L443 ceAbstractionStarter]: For program point L26(line 26) no Hoare annotation was computed. [2019-11-15 21:24:36,137 INFO L443 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2019-11-15 21:24:36,137 INFO L443 ceAbstractionStarter]: For program point L22(lines 22 32) no Hoare annotation was computed. [2019-11-15 21:24:36,141 INFO L439 ceAbstractionStarter]: At program point L22-1(lines 19 33) the Hoare annotation is: (let ((.cse5 (<= 0 ULTIMATE.start_main_~y~0)) (.cse28 (<= 0 (+ ULTIMATE.start_main_~x~0 1))) (.cse27 (<= ULTIMATE.start_main_~x~0 1)) (.cse11 (<= 8 ULTIMATE.start_main_~i~0)) (.cse37 (<= 0 (+ ULTIMATE.start_main_~x~0 2))) (.cse3 (<= ULTIMATE.start_main_~x~0 0)) (.cse6 (<= 9 ULTIMATE.start_main_~i~0)) (.cse9 (<= ULTIMATE.start_main_~y~0 0)) (.cse1 (<= ULTIMATE.start_main_~N~0 10)) (.cse49 (<= 0 (+ ULTIMATE.start_main_~y~0 2147483648))) (.cse19 (<= ULTIMATE.start_main_~x~0 2)) (.cse4 (<= 0 ULTIMATE.start_main_~x~0))) (let ((.cse43 (or (and .cse6 .cse9 .cse1 .cse37 .cse3 .cse49) (and .cse6 .cse9 .cse1 .cse49 .cse19 .cse4))) (.cse10 (<= ULTIMATE.start_main_~x~0 7)) (.cse15 (<= ULTIMATE.start_main_~x~0 8)) (.cse46 (<= ULTIMATE.start_main_~x~0 9)) (.cse18 (<= 2 ULTIMATE.start_main_~i~0)) (.cse33 (<= ULTIMATE.start_main_~y~0 2)) (.cse0 (<= 3 ULTIMATE.start_main_~i~0)) (.cse31 (<= 0 (+ ULTIMATE.start_main_~x~0 3))) (.cse32 (<= ULTIMATE.start_main_~y~0 6)) (.cse36 (<= ULTIMATE.start_main_~y~0 8)) (.cse41 (<= ULTIMATE.start_main_~x~0 4)) (.cse45 (<= 0 (+ ULTIMATE.start_main_~x~0 8))) (.cse13 (<= 5 ULTIMATE.start_main_~i~0)) (.cse50 (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648))) (.cse26 (<= 0 (+ ULTIMATE.start_main_~y~0 4))) (.cse8 (<= ULTIMATE.start_main_~x~0 5)) (.cse17 (<= 0 (+ ULTIMATE.start_main_~x~0 4))) (.cse24 (<= 0 (+ ULTIMATE.start_main_~y~0 3))) (.cse48 (<= 0 (+ ULTIMATE.start_main_~y~0 6))) (.cse51 (or (and .cse28 .cse9 .cse1 .cse3 .cse11 .cse49) (and .cse9 .cse1 .cse27 .cse11 .cse49 .cse4))) (.cse16 (<= ULTIMATE.start_main_~y~0 1)) (.cse40 (<= ULTIMATE.start_main_~x~0 3)) (.cse29 (<= ULTIMATE.start_main_~y~0 5)) (.cse21 (<= 6 ULTIMATE.start_main_~i~0)) (.cse39 (<= 1 ULTIMATE.start_main_~i~0)) (.cse12 (<= 0 (+ ULTIMATE.start_main_~y~0 1))) (.cse35 (or (and .cse6 .cse28 .cse1 .cse3 .cse5) (and .cse6 .cse1 .cse27 .cse4 .cse5))) (.cse2 (<= ULTIMATE.start_main_~y~0 3)) (.cse34 (<= 0 (+ ULTIMATE.start_main_~x~0 6))) (.cse42 (<= 0 (+ ULTIMATE.start_main_~x~0 5))) (.cse14 (<= 0 (+ ULTIMATE.start_main_~y~0 5))) (.cse22 (<= ULTIMATE.start_main_~x~0 6)) (.cse20 (<= ULTIMATE.start_main_~y~0 7)) (.cse30 (<= 7 ULTIMATE.start_main_~i~0)) (.cse44 (<= 0 (+ ULTIMATE.start_main_~y~0 7))) (.cse7 (<= ULTIMATE.start_main_~y~0 4)) (.cse47 (<= 4 ULTIMATE.start_main_~i~0)) (.cse38 (<= 0 (+ ULTIMATE.start_main_~y~0 2))) (.cse25 (<= 0 (+ ULTIMATE.start_main_~x~0 7))) (.cse23 (<= 10 ULTIMATE.start_main_~i~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse1 .cse8 .cse4 .cse5) (and .cse9 .cse10 .cse1 .cse11 .cse12 .cse4) (and .cse9 .cse1 .cse3 .cse13 .cse14 .cse4) (and .cse15 .cse9 .cse1 .cse11 .cse4 .cse5) (and .cse16 .cse17 .cse1 .cse3 .cse13 .cse5) (and .cse9 .cse1 .cse18 .cse19 .cse4 .cse5) (and .cse6 .cse1 .cse19 .cse4 .cse5 .cse20) (and .cse9 .cse1 .cse21 .cse4 .cse5 .cse22) (and .cse23 .cse9 .cse1 .cse3 .cse24 .cse25) (and .cse17 .cse26 .cse9 .cse1 .cse3 .cse11) (and (or (and .cse1 .cse27 .cse21 .cse4) (and .cse28 .cse1 .cse3 .cse21)) .cse9 .cse14) (and .cse17 .cse7 .cse1 .cse3 .cse11 .cse5) (and .cse29 .cse1 .cse30 .cse19 .cse4 .cse5) (and .cse6 .cse1 .cse3 .cse31 .cse5 .cse32) (and .cse33 .cse1 .cse3 .cse11 .cse34 .cse5) (and .cse6 .cse1 .cse2 .cse4 .cse5 .cse22) (and .cse6 .cse29 .cse17 .cse1 .cse3 .cse5) (and .cse33 .cse28 .cse0 .cse1 .cse3 .cse5) (and .cse35 .cse36) (and .cse1 .cse2 .cse19 .cse13 .cse4 .cse5) (and .cse16 (or (and .cse28 .cse1 .cse18 .cse3 .cse5) (and .cse1 .cse27 .cse18 .cse4 .cse5))) (and .cse1 .cse2 .cse37 .cse3 .cse13 .cse5) (and .cse6 .cse9 .cse10 .cse1 .cse38 .cse4) (and .cse1 .cse37 .cse3 .cse11 .cse5 .cse32) (and .cse5 (or (and .cse39 .cse9 .cse1 .cse27 .cse4) (and .cse39 .cse16 .cse1 .cse3 .cse4) (and .cse39 .cse28 .cse9 .cse1 .cse3))) (and (or (and .cse1 .cse27 .cse11 .cse4 .cse5) (and .cse28 .cse1 .cse3 .cse11 .cse5)) .cse20) (and .cse40 .cse33 .cse1 .cse13 .cse4 .cse5) (and .cse9 .cse1 .cse3 .cse34 .cse21 .cse5) (and .cse41 .cse26 .cse9 .cse1 .cse11 .cse4) (and .cse29 .cse23 .cse1 .cse8 .cse4 .cse5) (and .cse9 .cse42 .cse1 .cse3 .cse21 .cse12) (and .cse40 .cse9 .cse1 .cse38 .cse13 .cse4) (and .cse33 .cse0 .cse1 .cse27 .cse4 .cse5) (and .cse9 .cse1 .cse3 .cse31 .cse24 .cse21) (and .cse43 .cse44) (and .cse9 .cse1 .cse8 .cse21 .cse12 .cse4) (and .cse23 .cse33 .cse1 .cse3 .cse45 .cse5) (and .cse41 .cse9 .cse1 .cse13 .cse12 .cse4) (and .cse23 .cse26 .cse9 .cse1 .cse3 .cse34) (and .cse41 .cse9 .cse1 .cse30 .cse24 .cse4) (and .cse17 .cse1 .cse2 .cse30 .cse3 .cse5) (and .cse33 .cse41 .cse1 .cse21 .cse4 .cse5) (and .cse40 .cse1 .cse2 .cse21 .cse4 .cse5) (and .cse6 .cse9 .cse1 .cse24 .cse4 .cse22) (and (or (and .cse1 .cse27 .cse18 .cse4) (and .cse28 .cse1 .cse18 .cse3)) .cse9 .cse12) (and (or (and .cse0 .cse1 .cse27 .cse4) (and .cse28 .cse0 .cse1 .cse3)) .cse9 .cse38) (and .cse16 .cse41 .cse1 .cse13 .cse4 .cse5) (and .cse23 .cse1 .cse2 .cse3 .cse25 .cse5) (and .cse16 .cse1 .cse8 .cse21 .cse4 .cse5) (and .cse9 .cse1 .cse18 .cse38 .cse3 .cse4) (and .cse40 .cse23 .cse1 .cse4 .cse5 .cse20) (and .cse6 .cse7 .cse42 .cse1 .cse3 .cse5) (and .cse6 .cse9 .cse1 .cse3 .cse24 .cse34) (and .cse23 .cse9 .cse1 .cse3 .cse38 .cse45) (and .cse6 .cse26 .cse9 .cse42 .cse1 .cse3) (and .cse26 .cse9 .cse1 .cse27 .cse13 .cse4) (and .cse23 .cse15 .cse33 .cse1 .cse4 .cse5) (and .cse9 .cse1 .cse18 .cse37 .cse3 .cse5) (and .cse9 .cse1 .cse30 .cse3 .cse34 .cse12) (and (<= 0 (+ ULTIMATE.start_main_~y~0 9)) (and .cse28 .cse43)) (and .cse23 .cse16 .cse1 .cse46 .cse4 .cse5) (and .cse9 .cse1 .cse30 .cse3 .cse25 .cse5) (and .cse1 .cse2 .cse3 .cse31 .cse21 .cse5) (and .cse23 .cse1 .cse19 .cse4 .cse5) (and .cse28 .cse1 .cse2 .cse3 .cse47 .cse5) (and .cse1 .cse2 .cse27 .cse47 .cse4 .cse5) (and .cse16 .cse1 .cse3 .cse11 .cse25 .cse5) (and .cse23 .cse9 .cse1 .cse8 .cse14 .cse4) (and .cse33 .cse1 .cse11 .cse4 .cse5 .cse22) (and .cse33 .cse1 .cse3 .cse31 .cse13 .cse5) (and .cse9 .cse1 .cse30 .cse12 .cse4 .cse22) (and .cse29 .cse1 .cse3 .cse11 .cse31 .cse5) (and .cse23 .cse17 .cse9 .cse48 .cse1 .cse3) (and .cse40 .cse9 .cse1 .cse11 .cse14 .cse4) (and .cse6 .cse17 .cse9 .cse1 .cse3 .cse14) (and .cse29 .cse23 .cse42 .cse1 .cse3 .cse5) (and (or (and .cse9 .cse1 .cse30 .cse19 .cse4) (and .cse9 .cse1 .cse30 .cse37 .cse3)) .cse14) (and .cse28 .cse7 .cse1 .cse3 .cse13 .cse5) (and .cse6 .cse29 .cse41 .cse1 .cse4 .cse5) (and .cse9 .cse0 .cse1 .cse3 .cse31 .cse5) (and .cse41 .cse9 .cse1 .cse47 .cse4 .cse5) (and .cse33 .cse42 .cse1 .cse30 .cse3 .cse5) (and .cse33 .cse1 .cse19 .cse47 .cse4 .cse5) (and .cse9 .cse1 .cse10 .cse30 .cse4 .cse5) (and .cse17 .cse9 .cse1 .cse3 .cse38 .cse21) (and .cse7 .cse1 .cse30 .cse3 .cse31 .cse5) (and .cse33 .cse1 .cse30 .cse8 .cse4 .cse5) (and .cse7 .cse1 .cse19 .cse21 .cse4 .cse5) (and .cse23 .cse9 .cse1 .cse46 .cse12 .cse4) (and .cse17 .cse9 .cse1 .cse3 .cse47 .cse5) (and .cse41 .cse9 .cse1 .cse38 .cse21 .cse4) (and (or (and .cse1 .cse30 .cse27 .cse4 .cse5) (and .cse28 .cse1 .cse30 .cse3 .cse5)) .cse32) (and .cse29 .cse1 .cse30 .cse37 .cse3 .cse5) (and .cse33 .cse1 .cse37 .cse3 .cse47 .cse5) (and .cse26 .cse9 .cse1 .cse37 .cse3 .cse21) (and .cse16 .cse1 .cse3 .cse31 .cse47 .cse5) (and .cse23 .cse9 .cse1 .cse3 .cse49 .cse31) (and .cse40 .cse16 .cse1 .cse47 .cse4 .cse5) (and .cse26 .cse9 .cse1 .cse3 .cse47 .cse4) (and .cse16 .cse10 .cse1 .cse11 .cse4 .cse5) (and .cse29 .cse1 .cse3 .cse13 .cse4 .cse5) (and .cse6 .cse33 .cse10 .cse1 .cse4 .cse5) (or (and .cse28 .cse9 .cse48 .cse1 .cse30 .cse3) (and .cse9 .cse48 .cse1 .cse30 .cse27 .cse4)) (and .cse7 .cse1 .cse37 .cse3 .cse21 .cse5) (and .cse9 .cse42 .cse1 .cse30 .cse3 .cse38) (and .cse16 .cse1 .cse30 .cse4 .cse5 .cse22) (and .cse6 .cse33 .cse1 .cse3 .cse25 .cse5) (and .cse23 .cse41 .cse1 .cse4 .cse5 .cse32) (and .cse9 .cse48 .cse1 .cse11 .cse19 .cse4) (and .cse29 .cse28 .cse1 .cse3 .cse21 .cse5) (and .cse9 .cse1 .cse3 .cse31 .cse47 .cse12) (and .cse23 .cse15 .cse9 .cse1 .cse38 .cse4) (and .cse6 .cse16 .cse1 .cse3 .cse45 .cse5) (and .cse6 .cse16 .cse15 .cse1 .cse4 .cse5) (and .cse28 .cse26 .cse9 .cse1 .cse3 .cse13) (and .cse26 .cse9 .cse1 .cse30 .cse3 .cse31) (and .cse23 .cse16 .cse50 .cse1 .cse3 .cse5) (and .cse23 .cse9 .cse10 .cse1 .cse24 .cse4) (and .cse40 .cse29 .cse1 .cse11 .cse4 .cse5) (and .cse16 .cse0 .cse1 .cse19 .cse4 .cse5) (and .cse40 .cse6 .cse9 .cse48 .cse1 .cse4) (and (or (and .cse28 .cse9 .cse1 .cse3 .cse47) (and .cse9 .cse1 .cse27 .cse47 .cse4)) .cse24) (and .cse23 .cse10 .cse1 .cse2 .cse4 .cse5) (and .cse6 .cse41 .cse9 .cse1 .cse14 .cse4) (and .cse9 .cse0 .cse1 .cse3 .cse24 .cse4) (and .cse17 .cse9 .cse1 .cse3 .cse13 .cse12) (and .cse42 .cse1 .cse2 .cse3 .cse11 .cse5) (and .cse16 .cse1 .cse30 .cse3 .cse34 .cse5) (and .cse41 .cse1 .cse2 .cse30 .cse4 .cse5) (and .cse23 .cse7 .cse1 .cse4 .cse5 .cse22) (and .cse6 .cse9 .cse1 .cse3 (<= 0 (+ ULTIMATE.start_main_~x~0 9)) .cse5) (and .cse9 .cse1 .cse38 .cse19 .cse47 .cse4) (and .cse40 .cse9 .cse1 .cse24 .cse21 .cse4) (and .cse6 .cse15 .cse9 .cse1 .cse12 .cse4) (and .cse6 .cse9 .cse46 .cse1 .cse4 .cse5) (and .cse1 .cse11 .cse19 .cse4 .cse5 .cse32) (and .cse23 .cse1 .cse3 .cse31 .cse5 .cse20) (and .cse6 .cse9 .cse1 .cse3 .cse45 .cse12) (and .cse9 .cse1 .cse3 .cse11 .cse31 .cse14) (and .cse9 .cse42 .cse1 .cse3 .cse13 .cse5) (and .cse51 (<= 0 (+ ULTIMATE.start_main_~y~0 8)) .cse4) (and .cse9 .cse0 .cse1 .cse19 .cse12 .cse4) (and .cse9 .cse42 .cse1 .cse3 .cse11 .cse24) (and .cse1 .cse3 .cse21 .cse5 .cse4 .cse32) (and .cse9 .cse1 .cse3 .cse38 .cse31 .cse13) (and .cse9 .cse1 .cse30 .cse38 .cse8 .cse4) (and .cse33 .cse1 .cse18 .cse3 .cse4 .cse5) (and .cse40 .cse9 .cse0 .cse1 .cse4 .cse5) (and .cse23 .cse7 .cse1 .cse3 .cse34 .cse5) (and .cse23 .cse1 .cse37 .cse3 .cse5) (and .cse23 .cse17 .cse1 .cse3 .cse5 .cse32) (and .cse40 .cse26 .cse9 .cse1 .cse30 .cse4) (and .cse9 .cse1 .cse13 .cse8 .cse4 .cse5) (and .cse9 .cse1 .cse3 .cse4 .cse5 (<= 0 ULTIMATE.start_main_~i~0)) (and .cse16 .cse0 .cse1 .cse37 .cse3 .cse5) (and .cse1 .cse2 .cse11 .cse8 .cse4 .cse5) (and .cse9 .cse1 .cse11 .cse24 .cse8 .cse4) (and .cse9 .cse48 .cse1 .cse37 .cse3 .cse11) (and .cse40 .cse23 .cse9 .cse1 .cse49 .cse4) (and .cse26 .cse9 .cse1 .cse19 .cse21 .cse4) (and .cse33 .cse17 .cse1 .cse3 .cse21 .cse5) (and .cse9 .cse0 .cse1 .cse37 .cse3 .cse12) (and .cse6 .cse9 .cse48 .cse1 .cse3 .cse31) (and .cse23 .cse41 .cse9 .cse48 .cse1 .cse4) (and .cse1 .cse30 .cse3 .cse5 .cse4 .cse20) (and .cse40 .cse6 .cse1 .cse4 .cse5 .cse32) (and .cse1 .cse11 .cse3 .cse36 .cse5 .cse4) (and .cse23 .cse26 .cse9 .cse1 .cse4 .cse22) (or (and .cse9 .cse1 .cse37 .cse3 .cse13 .cse24) (and .cse9 .cse1 .cse19 .cse13 .cse24 .cse4)) (and .cse41 .cse7 .cse1 .cse11 .cse4 .cse5) (and .cse9 .cse1 .cse3 .cse11 .cse45 .cse5) (and .cse9 .cse1 .cse3 .cse11 .cse38 .cse34) (and .cse7 .cse1 .cse27 .cse13 .cse4 .cse5) (and .cse9 .cse1 .cse3 .cse11 .cse25 .cse12) (and .cse23 .cse50 .cse9 .cse1 .cse3 .cse12) (and .cse6 .cse26 .cse9 .cse1 .cse8 .cse4) (and .cse17 .cse9 .cse1 .cse30 .cse3 .cse24) (and .cse9 .cse48 .cse1 .cse3 .cse21 .cse4) (and .cse51 .cse44) (and .cse16 .cse42 .cse1 .cse3 .cse21 .cse5) (and .cse40 .cse9 .cse1 .cse47 .cse12 .cse4) (and .cse40 .cse7 .cse1 .cse30 .cse4 .cse5) (and .cse29 .cse1 .cse27 .cse21 .cse4 .cse5) (and .cse39 .cse9 .cse1 .cse3 .cse12 .cse4) (and .cse35 (<= ULTIMATE.start_main_~y~0 9) .cse4) (and .cse9 .cse1 .cse37 .cse3 .cse38 .cse47) (and .cse6 .cse1 .cse2 .cse3 .cse34 .cse5) (and .cse23 .cse9 .cse42 .cse1 .cse3 .cse14) (and .cse9 .cse1 .cse11 .cse38 .cse4 .cse22) (and .cse6 .cse1 .cse37 .cse3 .cse5 .cse20) (and .cse9 .cse1 .cse30 .cse3 .cse44 .cse4) (and .cse7 .cse1 .cse3 .cse47 .cse4 .cse5) (and .cse6 .cse9 .cse1 .cse3 .cse38 .cse25) (and .cse23 .cse9 .cse1 .cse4 .cse5)))) [2019-11-15 21:24:36,141 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2019-11-15 21:24:36,141 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-15 21:24:36,141 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2019-11-15 21:24:36,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 09:24:36 BoogieIcfgContainer [2019-11-15 21:24:36,211 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 21:24:36,212 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 21:24:36,212 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 21:24:36,212 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 21:24:36,212 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:22:17" (3/4) ... [2019-11-15 21:24:36,215 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 21:24:36,225 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-15 21:24:36,225 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-15 21:24:36,277 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b5bdc630-091c-4dc2-87c0-df464e532e75/bin/uautomizer/witness.graphml [2019-11-15 21:24:36,277 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 21:24:36,278 INFO L168 Benchmark]: Toolchain (without parser) took 139338.69 ms. Allocated memory was 1.0 GB in the beginning and 4.0 GB in the end (delta: 2.9 GB). Free memory was 946.2 MB in the beginning and 2.9 GB in the end (delta: -2.0 GB). Peak memory consumption was 931.2 MB. Max. memory is 11.5 GB. [2019-11-15 21:24:36,279 INFO L168 Benchmark]: CDTParser took 0.54 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:24:36,279 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 187.2 MB). Free memory was 946.2 MB in the beginning and 1.2 GB in the end (delta: -238.3 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2019-11-15 21:24:36,280 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:24:36,280 INFO L168 Benchmark]: Boogie Preprocessor took 35.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-15 21:24:36,280 INFO L168 Benchmark]: RCFGBuilder took 269.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. [2019-11-15 21:24:36,281 INFO L168 Benchmark]: TraceAbstraction took 138672.20 ms. Allocated memory was 1.2 GB in the beginning and 4.0 GB in the end (delta: 2.7 GB). Free memory was 1.2 GB in the beginning and 3.0 GB in the end (delta: -1.9 GB). Peak memory consumption was 3.8 GB. Max. memory is 11.5 GB. [2019-11-15 21:24:36,281 INFO L168 Benchmark]: Witness Printer took 65.54 ms. Allocated memory is still 4.0 GB. Free memory was 3.0 GB in the beginning and 2.9 GB in the end (delta: 79.9 MB). Peak memory consumption was 79.9 MB. Max. memory is 11.5 GB. [2019-11-15 21:24:36,283 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 259.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 187.2 MB). Free memory was 946.2 MB in the beginning and 1.2 GB in the end (delta: -238.3 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 269.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 138672.20 ms. Allocated memory was 1.2 GB in the beginning and 4.0 GB in the end (delta: 2.7 GB). Free memory was 1.2 GB in the beginning and 3.0 GB in the end (delta: -1.9 GB). Peak memory consumption was 3.8 GB. Max. memory is 11.5 GB. * Witness Printer took 65.54 ms. Allocated memory is still 4.0 GB. Free memory was 3.0 GB in the beginning and 2.9 GB in the end (delta: 79.9 MB). Peak memory consumption was 79.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 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 - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 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: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((3 <= i && N <= 10) && y <= 3) && x <= 0) && 0 <= x) && 0 <= y) || (((((9 <= i && y <= 4) && N <= 10) && x <= 5) && 0 <= x) && 0 <= y)) || (((((y <= 0 && x <= 7) && N <= 10) && 8 <= i) && 0 <= y + 1) && 0 <= x)) || (((((y <= 0 && N <= 10) && x <= 0) && 5 <= i) && 0 <= y + 5) && 0 <= x)) || (((((x <= 8 && y <= 0) && N <= 10) && 8 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 1 && 0 <= x + 4) && N <= 10) && x <= 0) && 5 <= i) && 0 <= y)) || (((((y <= 0 && N <= 10) && 2 <= i) && x <= 2) && 0 <= x) && 0 <= y)) || (((((9 <= i && N <= 10) && x <= 2) && 0 <= x) && 0 <= y) && y <= 7)) || (((((y <= 0 && N <= 10) && 6 <= i) && 0 <= x) && 0 <= y) && x <= 6)) || (((((10 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 3) && 0 <= x + 7)) || (((((0 <= x + 4 && 0 <= y + 4) && y <= 0) && N <= 10) && x <= 0) && 8 <= i)) || ((((((N <= 10 && x <= 1) && 6 <= i) && 0 <= x) || (((0 <= x + 1 && N <= 10) && x <= 0) && 6 <= i)) && y <= 0) && 0 <= y + 5)) || (((((0 <= x + 4 && y <= 4) && N <= 10) && x <= 0) && 8 <= i) && 0 <= y)) || (((((y <= 5 && N <= 10) && 7 <= i) && x <= 2) && 0 <= x) && 0 <= y)) || (((((9 <= i && N <= 10) && x <= 0) && 0 <= x + 3) && 0 <= y) && y <= 6)) || (((((y <= 2 && N <= 10) && x <= 0) && 8 <= i) && 0 <= x + 6) && 0 <= y)) || (((((9 <= i && N <= 10) && y <= 3) && 0 <= x) && 0 <= y) && x <= 6)) || (((((9 <= i && y <= 5) && 0 <= x + 4) && N <= 10) && x <= 0) && 0 <= y)) || (((((y <= 2 && 0 <= x + 1) && 3 <= i) && N <= 10) && x <= 0) && 0 <= y)) || ((((((9 <= i && 0 <= x + 1) && N <= 10) && x <= 0) && 0 <= y) || ((((9 <= i && N <= 10) && x <= 1) && 0 <= x) && 0 <= y)) && y <= 8)) || (((((N <= 10 && y <= 3) && x <= 2) && 5 <= i) && 0 <= x) && 0 <= y)) || (y <= 1 && (((((0 <= x + 1 && N <= 10) && 2 <= i) && x <= 0) && 0 <= y) || ((((N <= 10 && x <= 1) && 2 <= i) && 0 <= x) && 0 <= y)))) || (((((N <= 10 && y <= 3) && 0 <= x + 2) && x <= 0) && 5 <= i) && 0 <= y)) || (((((9 <= i && y <= 0) && x <= 7) && N <= 10) && 0 <= y + 2) && 0 <= x)) || (((((N <= 10 && 0 <= x + 2) && x <= 0) && 8 <= i) && 0 <= y) && y <= 6)) || (0 <= y && ((((((1 <= i && y <= 0) && N <= 10) && x <= 1) && 0 <= x) || ((((1 <= i && y <= 1) && N <= 10) && x <= 0) && 0 <= x)) || ((((1 <= i && 0 <= x + 1) && y <= 0) && N <= 10) && x <= 0)))) || ((((((N <= 10 && x <= 1) && 8 <= i) && 0 <= x) && 0 <= y) || ((((0 <= x + 1 && N <= 10) && x <= 0) && 8 <= i) && 0 <= y)) && y <= 7)) || (((((x <= 3 && y <= 2) && N <= 10) && 5 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 0) && 0 <= x + 6) && 6 <= i) && 0 <= y)) || (((((x <= 4 && 0 <= y + 4) && y <= 0) && N <= 10) && 8 <= i) && 0 <= x)) || (((((y <= 5 && 10 <= i) && N <= 10) && x <= 5) && 0 <= x) && 0 <= y)) || (((((y <= 0 && 0 <= x + 5) && N <= 10) && x <= 0) && 6 <= i) && 0 <= y + 1)) || (((((x <= 3 && y <= 0) && N <= 10) && 0 <= y + 2) && 5 <= i) && 0 <= x)) || (((((y <= 2 && 3 <= i) && N <= 10) && x <= 1) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 0) && 0 <= x + 3) && 0 <= y + 3) && 6 <= i)) || (((((((9 <= i && y <= 0) && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y + 2147483648) || (((((9 <= i && y <= 0) && N <= 10) && 0 <= y + 2147483648) && x <= 2) && 0 <= x)) && 0 <= y + 7)) || (((((y <= 0 && N <= 10) && x <= 5) && 6 <= i) && 0 <= y + 1) && 0 <= x)) || (((((10 <= i && y <= 2) && N <= 10) && x <= 0) && 0 <= x + 8) && 0 <= y)) || (((((x <= 4 && y <= 0) && N <= 10) && 5 <= i) && 0 <= y + 1) && 0 <= x)) || (((((10 <= i && 0 <= y + 4) && y <= 0) && N <= 10) && x <= 0) && 0 <= x + 6)) || (((((x <= 4 && y <= 0) && N <= 10) && 7 <= i) && 0 <= y + 3) && 0 <= x)) || (((((0 <= x + 4 && N <= 10) && y <= 3) && 7 <= i) && x <= 0) && 0 <= y)) || (((((y <= 2 && x <= 4) && N <= 10) && 6 <= i) && 0 <= x) && 0 <= y)) || (((((x <= 3 && N <= 10) && y <= 3) && 6 <= i) && 0 <= x) && 0 <= y)) || (((((9 <= i && y <= 0) && N <= 10) && 0 <= y + 3) && 0 <= x) && x <= 6)) || ((((((N <= 10 && x <= 1) && 2 <= i) && 0 <= x) || (((0 <= x + 1 && N <= 10) && 2 <= i) && x <= 0)) && y <= 0) && 0 <= y + 1)) || ((((((3 <= i && N <= 10) && x <= 1) && 0 <= x) || (((0 <= x + 1 && 3 <= i) && N <= 10) && x <= 0)) && y <= 0) && 0 <= y + 2)) || (((((y <= 1 && x <= 4) && N <= 10) && 5 <= i) && 0 <= x) && 0 <= y)) || (((((10 <= i && N <= 10) && y <= 3) && x <= 0) && 0 <= x + 7) && 0 <= y)) || (((((y <= 1 && N <= 10) && x <= 5) && 6 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && 2 <= i) && 0 <= y + 2) && x <= 0) && 0 <= x)) || (((((x <= 3 && 10 <= i) && N <= 10) && 0 <= x) && 0 <= y) && y <= 7)) || (((((9 <= i && y <= 4) && 0 <= x + 5) && N <= 10) && x <= 0) && 0 <= y)) || (((((9 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 3) && 0 <= x + 6)) || (((((10 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 2) && 0 <= x + 8)) || (((((9 <= i && 0 <= y + 4) && y <= 0) && 0 <= x + 5) && N <= 10) && x <= 0)) || (((((0 <= y + 4 && y <= 0) && N <= 10) && x <= 1) && 5 <= i) && 0 <= x)) || (((((10 <= i && x <= 8) && y <= 2) && N <= 10) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && 2 <= i) && 0 <= x + 2) && x <= 0) && 0 <= y)) || (((((y <= 0 && N <= 10) && 7 <= i) && x <= 0) && 0 <= x + 6) && 0 <= y + 1)) || (0 <= y + 9 && 0 <= x + 1 && ((((((9 <= i && y <= 0) && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y + 2147483648) || (((((9 <= i && y <= 0) && N <= 10) && 0 <= y + 2147483648) && x <= 2) && 0 <= x)))) || (((((10 <= i && y <= 1) && N <= 10) && x <= 9) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && 7 <= i) && x <= 0) && 0 <= x + 7) && 0 <= y)) || (((((N <= 10 && y <= 3) && x <= 0) && 0 <= x + 3) && 6 <= i) && 0 <= y)) || ((((10 <= i && N <= 10) && x <= 2) && 0 <= x) && 0 <= y)) || (((((0 <= x + 1 && N <= 10) && y <= 3) && x <= 0) && 4 <= i) && 0 <= y)) || (((((N <= 10 && y <= 3) && x <= 1) && 4 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 1 && N <= 10) && x <= 0) && 8 <= i) && 0 <= x + 7) && 0 <= y)) || (((((10 <= i && y <= 0) && N <= 10) && x <= 5) && 0 <= y + 5) && 0 <= x)) || (((((y <= 2 && N <= 10) && 8 <= i) && 0 <= x) && 0 <= y) && x <= 6)) || (((((y <= 2 && N <= 10) && x <= 0) && 0 <= x + 3) && 5 <= i) && 0 <= y)) || (((((y <= 0 && N <= 10) && 7 <= i) && 0 <= y + 1) && 0 <= x) && x <= 6)) || (((((y <= 5 && N <= 10) && x <= 0) && 8 <= i) && 0 <= x + 3) && 0 <= y)) || (((((10 <= i && 0 <= x + 4) && y <= 0) && 0 <= y + 6) && N <= 10) && x <= 0)) || (((((x <= 3 && y <= 0) && N <= 10) && 8 <= i) && 0 <= y + 5) && 0 <= x)) || (((((9 <= i && 0 <= x + 4) && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 5)) || (((((y <= 5 && 10 <= i) && 0 <= x + 5) && N <= 10) && x <= 0) && 0 <= y)) || ((((((y <= 0 && N <= 10) && 7 <= i) && x <= 2) && 0 <= x) || ((((y <= 0 && N <= 10) && 7 <= i) && 0 <= x + 2) && x <= 0)) && 0 <= y + 5)) || (((((0 <= x + 1 && y <= 4) && N <= 10) && x <= 0) && 5 <= i) && 0 <= y)) || (((((9 <= i && y <= 5) && x <= 4) && N <= 10) && 0 <= x) && 0 <= y)) || (((((y <= 0 && 3 <= i) && N <= 10) && x <= 0) && 0 <= x + 3) && 0 <= y)) || (((((x <= 4 && y <= 0) && N <= 10) && 4 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 2 && 0 <= x + 5) && N <= 10) && 7 <= i) && x <= 0) && 0 <= y)) || (((((y <= 2 && N <= 10) && x <= 2) && 4 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 7) && 7 <= i) && 0 <= x) && 0 <= y)) || (((((0 <= x + 4 && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 2) && 6 <= i)) || (((((y <= 4 && N <= 10) && 7 <= i) && x <= 0) && 0 <= x + 3) && 0 <= y)) || (((((y <= 2 && N <= 10) && 7 <= i) && x <= 5) && 0 <= x) && 0 <= y)) || (((((y <= 4 && N <= 10) && x <= 2) && 6 <= i) && 0 <= x) && 0 <= y)) || (((((10 <= i && y <= 0) && N <= 10) && x <= 9) && 0 <= y + 1) && 0 <= x)) || (((((0 <= x + 4 && y <= 0) && N <= 10) && x <= 0) && 4 <= i) && 0 <= y)) || (((((x <= 4 && y <= 0) && N <= 10) && 0 <= y + 2) && 6 <= i) && 0 <= x)) || ((((((N <= 10 && 7 <= i) && x <= 1) && 0 <= x) && 0 <= y) || ((((0 <= x + 1 && N <= 10) && 7 <= i) && x <= 0) && 0 <= y)) && y <= 6)) || (((((y <= 5 && N <= 10) && 7 <= i) && 0 <= x + 2) && x <= 0) && 0 <= y)) || (((((y <= 2 && N <= 10) && 0 <= x + 2) && x <= 0) && 4 <= i) && 0 <= y)) || (((((0 <= y + 4 && y <= 0) && N <= 10) && 0 <= x + 2) && x <= 0) && 6 <= i)) || (((((y <= 1 && N <= 10) && x <= 0) && 0 <= x + 3) && 4 <= i) && 0 <= y)) || (((((10 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 2147483648) && 0 <= x + 3)) || (((((x <= 3 && y <= 1) && N <= 10) && 4 <= i) && 0 <= x) && 0 <= y)) || (((((0 <= y + 4 && y <= 0) && N <= 10) && x <= 0) && 4 <= i) && 0 <= x)) || (((((y <= 1 && x <= 7) && N <= 10) && 8 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 5 && N <= 10) && x <= 0) && 5 <= i) && 0 <= x) && 0 <= y)) || (((((9 <= i && y <= 2) && x <= 7) && N <= 10) && 0 <= x) && 0 <= y)) || (((((0 <= x + 1 && y <= 0) && 0 <= y + 6) && N <= 10) && 7 <= i) && x <= 0) || (((((y <= 0 && 0 <= y + 6) && N <= 10) && 7 <= i) && x <= 1) && 0 <= x)) || (((((y <= 4 && N <= 10) && 0 <= x + 2) && x <= 0) && 6 <= i) && 0 <= y)) || (((((y <= 0 && 0 <= x + 5) && N <= 10) && 7 <= i) && x <= 0) && 0 <= y + 2)) || (((((y <= 1 && N <= 10) && 7 <= i) && 0 <= x) && 0 <= y) && x <= 6)) || (((((9 <= i && y <= 2) && N <= 10) && x <= 0) && 0 <= x + 7) && 0 <= y)) || (((((10 <= i && x <= 4) && N <= 10) && 0 <= x) && 0 <= y) && y <= 6)) || (((((y <= 0 && 0 <= y + 6) && N <= 10) && 8 <= i) && x <= 2) && 0 <= x)) || (((((y <= 5 && 0 <= x + 1) && N <= 10) && x <= 0) && 6 <= i) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 0) && 0 <= x + 3) && 4 <= i) && 0 <= y + 1)) || (((((10 <= i && x <= 8) && y <= 0) && N <= 10) && 0 <= y + 2) && 0 <= x)) || (((((9 <= i && y <= 1) && N <= 10) && x <= 0) && 0 <= x + 8) && 0 <= y)) || (((((9 <= i && y <= 1) && x <= 8) && N <= 10) && 0 <= x) && 0 <= y)) || (((((0 <= x + 1 && 0 <= y + 4) && y <= 0) && N <= 10) && x <= 0) && 5 <= i)) || (((((0 <= y + 4 && y <= 0) && N <= 10) && 7 <= i) && x <= 0) && 0 <= x + 3)) || (((((10 <= i && y <= 1) && 0 <= x + 2147483648) && N <= 10) && x <= 0) && 0 <= y)) || (((((10 <= i && y <= 0) && x <= 7) && N <= 10) && 0 <= y + 3) && 0 <= x)) || (((((x <= 3 && y <= 5) && N <= 10) && 8 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 1 && 3 <= i) && N <= 10) && x <= 2) && 0 <= x) && 0 <= y)) || (((((x <= 3 && 9 <= i) && y <= 0) && 0 <= y + 6) && N <= 10) && 0 <= x)) || ((((((0 <= x + 1 && y <= 0) && N <= 10) && x <= 0) && 4 <= i) || ((((y <= 0 && N <= 10) && x <= 1) && 4 <= i) && 0 <= x)) && 0 <= y + 3)) || (((((10 <= i && x <= 7) && N <= 10) && y <= 3) && 0 <= x) && 0 <= y)) || (((((9 <= i && x <= 4) && y <= 0) && N <= 10) && 0 <= y + 5) && 0 <= x)) || (((((y <= 0 && 3 <= i) && N <= 10) && x <= 0) && 0 <= y + 3) && 0 <= x)) || (((((0 <= x + 4 && y <= 0) && N <= 10) && x <= 0) && 5 <= i) && 0 <= y + 1)) || (((((0 <= x + 5 && N <= 10) && y <= 3) && x <= 0) && 8 <= i) && 0 <= y)) || (((((y <= 1 && N <= 10) && 7 <= i) && x <= 0) && 0 <= x + 6) && 0 <= y)) || (((((x <= 4 && N <= 10) && y <= 3) && 7 <= i) && 0 <= x) && 0 <= y)) || (((((10 <= i && y <= 4) && N <= 10) && 0 <= x) && 0 <= y) && x <= 6)) || (((((9 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= x + 9) && 0 <= y)) || (((((y <= 0 && N <= 10) && 0 <= y + 2) && x <= 2) && 4 <= i) && 0 <= x)) || (((((x <= 3 && y <= 0) && N <= 10) && 0 <= y + 3) && 6 <= i) && 0 <= x)) || (((((9 <= i && x <= 8) && y <= 0) && N <= 10) && 0 <= y + 1) && 0 <= x)) || (((((9 <= i && y <= 0) && x <= 9) && N <= 10) && 0 <= x) && 0 <= y)) || (((((N <= 10 && 8 <= i) && x <= 2) && 0 <= x) && 0 <= y) && y <= 6)) || (((((10 <= i && N <= 10) && x <= 0) && 0 <= x + 3) && 0 <= y) && y <= 7)) || (((((9 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= x + 8) && 0 <= y + 1)) || (((((y <= 0 && N <= 10) && x <= 0) && 8 <= i) && 0 <= x + 3) && 0 <= y + 5)) || (((((y <= 0 && 0 <= x + 5) && N <= 10) && x <= 0) && 5 <= i) && 0 <= y)) || ((((((((0 <= x + 1 && y <= 0) && N <= 10) && x <= 0) && 8 <= i) && 0 <= y + 2147483648) || (((((y <= 0 && N <= 10) && x <= 1) && 8 <= i) && 0 <= y + 2147483648) && 0 <= x)) && 0 <= y + 8) && 0 <= x)) || (((((y <= 0 && 3 <= i) && N <= 10) && x <= 2) && 0 <= y + 1) && 0 <= x)) || (((((y <= 0 && 0 <= x + 5) && N <= 10) && x <= 0) && 8 <= i) && 0 <= y + 3)) || (((((N <= 10 && x <= 0) && 6 <= i) && 0 <= y) && 0 <= x) && y <= 6)) || (((((y <= 0 && N <= 10) && x <= 0) && 0 <= y + 2) && 0 <= x + 3) && 5 <= i)) || (((((y <= 0 && N <= 10) && 7 <= i) && 0 <= y + 2) && x <= 5) && 0 <= x)) || (((((y <= 2 && N <= 10) && 2 <= i) && x <= 0) && 0 <= x) && 0 <= y)) || (((((x <= 3 && y <= 0) && 3 <= i) && N <= 10) && 0 <= x) && 0 <= y)) || (((((10 <= i && y <= 4) && N <= 10) && x <= 0) && 0 <= x + 6) && 0 <= y)) || ((((10 <= i && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y)) || (((((10 <= i && 0 <= x + 4) && N <= 10) && x <= 0) && 0 <= y) && y <= 6)) || (((((x <= 3 && 0 <= y + 4) && y <= 0) && N <= 10) && 7 <= i) && 0 <= x)) || (((((y <= 0 && N <= 10) && 5 <= i) && x <= 5) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 0) && 0 <= x) && 0 <= y) && 0 <= i)) || (((((y <= 1 && 3 <= i) && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y)) || (((((N <= 10 && y <= 3) && 8 <= i) && x <= 5) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && 8 <= i) && 0 <= y + 3) && x <= 5) && 0 <= x)) || (((((y <= 0 && 0 <= y + 6) && N <= 10) && 0 <= x + 2) && x <= 0) && 8 <= i)) || (((((x <= 3 && 10 <= i) && y <= 0) && N <= 10) && 0 <= y + 2147483648) && 0 <= x)) || (((((0 <= y + 4 && y <= 0) && N <= 10) && x <= 2) && 6 <= i) && 0 <= x)) || (((((y <= 2 && 0 <= x + 4) && N <= 10) && x <= 0) && 6 <= i) && 0 <= y)) || (((((y <= 0 && 3 <= i) && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y + 1)) || (((((9 <= i && y <= 0) && 0 <= y + 6) && N <= 10) && x <= 0) && 0 <= x + 3)) || (((((10 <= i && x <= 4) && y <= 0) && 0 <= y + 6) && N <= 10) && 0 <= x)) || (((((N <= 10 && 7 <= i) && x <= 0) && 0 <= y) && 0 <= x) && y <= 7)) || (((((x <= 3 && 9 <= i) && N <= 10) && 0 <= x) && 0 <= y) && y <= 6)) || (((((N <= 10 && 8 <= i) && x <= 0) && y <= 8) && 0 <= y) && 0 <= x)) || (((((10 <= i && 0 <= y + 4) && y <= 0) && N <= 10) && 0 <= x) && x <= 6)) || (((((y <= 0 && N <= 10) && 0 <= x + 2) && x <= 0) && 5 <= i) && 0 <= y + 3) || (((((y <= 0 && N <= 10) && x <= 2) && 5 <= i) && 0 <= y + 3) && 0 <= x)) || (((((x <= 4 && y <= 4) && N <= 10) && 8 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 0) && 8 <= i) && 0 <= x + 8) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 0) && 8 <= i) && 0 <= y + 2) && 0 <= x + 6)) || (((((y <= 4 && N <= 10) && x <= 1) && 5 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 0) && 8 <= i) && 0 <= x + 7) && 0 <= y + 1)) || (((((10 <= i && 0 <= x + 2147483648) && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 1)) || (((((9 <= i && 0 <= y + 4) && y <= 0) && N <= 10) && x <= 5) && 0 <= x)) || (((((0 <= x + 4 && y <= 0) && N <= 10) && 7 <= i) && x <= 0) && 0 <= y + 3)) || (((((y <= 0 && 0 <= y + 6) && N <= 10) && x <= 0) && 6 <= i) && 0 <= x)) || (((((((0 <= x + 1 && y <= 0) && N <= 10) && x <= 0) && 8 <= i) && 0 <= y + 2147483648) || (((((y <= 0 && N <= 10) && x <= 1) && 8 <= i) && 0 <= y + 2147483648) && 0 <= x)) && 0 <= y + 7)) || (((((y <= 1 && 0 <= x + 5) && N <= 10) && x <= 0) && 6 <= i) && 0 <= y)) || (((((x <= 3 && y <= 0) && N <= 10) && 4 <= i) && 0 <= y + 1) && 0 <= x)) || (((((x <= 3 && y <= 4) && N <= 10) && 7 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 5 && N <= 10) && x <= 1) && 6 <= i) && 0 <= x) && 0 <= y)) || (((((1 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 1) && 0 <= x)) || (((((((9 <= i && 0 <= x + 1) && N <= 10) && x <= 0) && 0 <= y) || ((((9 <= i && N <= 10) && x <= 1) && 0 <= x) && 0 <= y)) && y <= 9) && 0 <= x)) || (((((y <= 0 && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y + 2) && 4 <= i)) || (((((9 <= i && N <= 10) && y <= 3) && x <= 0) && 0 <= x + 6) && 0 <= y)) || (((((10 <= i && y <= 0) && 0 <= x + 5) && N <= 10) && x <= 0) && 0 <= y + 5)) || (((((y <= 0 && N <= 10) && 8 <= i) && 0 <= y + 2) && 0 <= x) && x <= 6)) || (((((9 <= i && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y) && y <= 7)) || (((((y <= 0 && N <= 10) && 7 <= i) && x <= 0) && 0 <= y + 7) && 0 <= x)) || (((((y <= 4 && N <= 10) && x <= 0) && 4 <= i) && 0 <= x) && 0 <= y)) || (((((9 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 2) && 0 <= x + 7)) || ((((10 <= i && y <= 0) && N <= 10) && 0 <= x) && 0 <= y) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 10 error locations. Result: SAFE, OverallTime: 138.5s, OverallIterations: 47, TraceHistogramMax: 11, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 107.3s, HoareTripleCheckerStatistics: 1231 SDtfs, 5757 SDslu, 4420 SDs, 0 SdLazy, 1307 SolverSat, 863 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2197 GetRequests, 1950 SyntacticMatches, 0 SemanticMatches, 247 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.7s 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: 8.3s AutomataMinimizationTime, 47 MinimizatonAttempts, 130578 StatesRemovedByMinimization, 41 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 1768 NumberOfFragments, 4435 HoareAnnotationTreeSize, 2 FomulaSimplifications, 58518 FormulaSimplificationTreeSizeReduction, 21.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 66442 FormulaSimplificationTreeSizeReductionInter, 86.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 3.0s 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...