./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/genady_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_dce4f9f4-4fe7-48f3-a8ef-ea757d1e8b20/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_dce4f9f4-4fe7-48f3-a8ef-ea757d1e8b20/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_dce4f9f4-4fe7-48f3-a8ef-ea757d1e8b20/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_dce4f9f4-4fe7-48f3-a8ef-ea757d1e8b20/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/genady_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_dce4f9f4-4fe7-48f3-a8ef-ea757d1e8b20/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_dce4f9f4-4fe7-48f3-a8ef-ea757d1e8b20/bin-2019/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 6938b5c805400363799492c040263d9022406929 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 11:19:37,372 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:19:37,373 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:19:37,387 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:19:37,388 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:19:37,388 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:19:37,400 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:19:37,401 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:19:37,403 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:19:37,403 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:19:37,404 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:19:37,404 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:19:37,405 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:19:37,406 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:19:37,407 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:19:37,407 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:19:37,408 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:19:37,409 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:19:37,411 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:19:37,412 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:19:37,412 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:19:37,414 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:19:37,416 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:19:37,416 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:19:37,416 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:19:37,417 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:19:37,418 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:19:37,418 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:19:37,419 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:19:37,421 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:19:37,421 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:19:37,422 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:19:37,422 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:19:37,422 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:19:37,423 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:19:37,423 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:19:37,424 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_dce4f9f4-4fe7-48f3-a8ef-ea757d1e8b20/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-18 11:19:37,436 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:19:37,436 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:19:37,437 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 11:19:37,437 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 11:19:37,438 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 11:19:37,438 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 11:19:37,438 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 11:19:37,439 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:19:37,439 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 11:19:37,439 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:19:37,439 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:19:37,439 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 11:19:37,439 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:19:37,440 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 11:19:37,440 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-18 11:19:37,440 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:19:37,440 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:19:37,440 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 11:19:37,440 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:19:37,441 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:19:37,441 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:19:37,443 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 11:19:37,443 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:19:37,443 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:19:37,443 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:19:37,443 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 11:19:37,443 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 11:19:37,443 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:19:37,444 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 11:19:37,444 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_dce4f9f4-4fe7-48f3-a8ef-ea757d1e8b20/bin-2019/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 -> 6938b5c805400363799492c040263d9022406929 [2018-11-18 11:19:37,470 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:19:37,479 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:19:37,482 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:19:37,483 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:19:37,484 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:19:37,484 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_dce4f9f4-4fe7-48f3-a8ef-ea757d1e8b20/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/genady_true-termination_true-no-overflow.c [2018-11-18 11:19:37,563 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dce4f9f4-4fe7-48f3-a8ef-ea757d1e8b20/bin-2019/uautomizer/data/b533b0823/2d8035a97fd945fba7bd52be2ef7791c/FLAG9a9294cd5 [2018-11-18 11:19:37,947 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:19:37,948 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_dce4f9f4-4fe7-48f3-a8ef-ea757d1e8b20/sv-benchmarks/c/termination-crafted-lit/genady_true-termination_true-no-overflow.c [2018-11-18 11:19:37,952 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dce4f9f4-4fe7-48f3-a8ef-ea757d1e8b20/bin-2019/uautomizer/data/b533b0823/2d8035a97fd945fba7bd52be2ef7791c/FLAG9a9294cd5 [2018-11-18 11:19:37,963 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_dce4f9f4-4fe7-48f3-a8ef-ea757d1e8b20/bin-2019/uautomizer/data/b533b0823/2d8035a97fd945fba7bd52be2ef7791c [2018-11-18 11:19:37,966 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:19:37,967 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 11:19:37,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:19:37,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:19:37,971 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:19:37,971 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:19:37" (1/1) ... [2018-11-18 11:19:37,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@527ba39d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:19:37, skipping insertion in model container [2018-11-18 11:19:37,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:19:37" (1/1) ... [2018-11-18 11:19:37,981 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:19:38,000 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:19:38,115 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:19:38,119 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:19:38,131 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:19:38,142 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:19:38,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:19:38 WrapperNode [2018-11-18 11:19:38,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:19:38,143 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:19:38,143 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:19:38,144 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:19:38,154 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:19:38" (1/1) ... [2018-11-18 11:19:38,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:19:38" (1/1) ... [2018-11-18 11:19:38,159 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:19:38" (1/1) ... [2018-11-18 11:19:38,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:19:38" (1/1) ... [2018-11-18 11:19:38,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:19:38" (1/1) ... [2018-11-18 11:19:38,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:19:38" (1/1) ... [2018-11-18 11:19:38,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:19:38" (1/1) ... [2018-11-18 11:19:38,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:19:38,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:19:38,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:19:38,168 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:19:38,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:19:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dce4f9f4-4fe7-48f3-a8ef-ea757d1e8b20/bin-2019/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 [2018-11-18 11:19:38,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 11:19:38,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:19:38,272 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 11:19:38,272 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 11:19:38,272 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 11:19:38,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 11:19:38,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:19:38,398 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:19:38,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:19:38 BoogieIcfgContainer [2018-11-18 11:19:38,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:19:38,400 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 11:19:38,400 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 11:19:38,402 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 11:19:38,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:19:37" (1/3) ... [2018-11-18 11:19:38,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b1ed01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:19:38, skipping insertion in model container [2018-11-18 11:19:38,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:19:38" (2/3) ... [2018-11-18 11:19:38,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b1ed01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:19:38, skipping insertion in model container [2018-11-18 11:19:38,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:19:38" (3/3) ... [2018-11-18 11:19:38,405 INFO L112 eAbstractionObserver]: Analyzing ICFG genady_true-termination_true-no-overflow.c [2018-11-18 11:19:38,411 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 11:19:38,415 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-18 11:19:38,424 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-18 11:19:38,445 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 11:19:38,446 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 11:19:38,446 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 11:19:38,446 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 11:19:38,446 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:19:38,446 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:19:38,446 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 11:19:38,446 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:19:38,446 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 11:19:38,459 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-11-18 11:19:38,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 11:19:38,463 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:19:38,463 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:19:38,465 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:19:38,469 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:19:38,469 INFO L82 PathProgramCache]: Analyzing trace with hash 109650244, now seen corresponding path program 1 times [2018-11-18 11:19:38,470 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:19:38,471 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:19:38,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:19:38,513 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:19:38,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:19:38,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:19:38,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:19:38,581 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:19:38,581 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:19:38,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:19:38,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:19:38,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:19:38,594 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2018-11-18 11:19:38,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:19:38,702 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2018-11-18 11:19:38,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:19:38,703 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-18 11:19:38,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:19:38,711 INFO L225 Difference]: With dead ends: 29 [2018-11-18 11:19:38,711 INFO L226 Difference]: Without dead ends: 18 [2018-11-18 11:19:38,713 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:19:38,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-18 11:19:38,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-18 11:19:38,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-18 11:19:38,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-11-18 11:19:38,742 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 7 [2018-11-18 11:19:38,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:19:38,743 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-11-18 11:19:38,743 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:19:38,743 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-11-18 11:19:38,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-18 11:19:38,743 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:19:38,743 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:19:38,744 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:19:38,744 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:19:38,744 INFO L82 PathProgramCache]: Analyzing trace with hash -895809689, now seen corresponding path program 1 times [2018-11-18 11:19:38,744 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:19:38,744 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:19:38,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:19:38,745 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:19:38,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:19:38,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:19:38,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:19:38,794 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:19:38,794 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:19:38,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:19:38,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:19:38,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:19:38,796 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 3 states. [2018-11-18 11:19:38,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:19:38,910 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2018-11-18 11:19:38,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:19:38,910 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-18 11:19:38,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:19:38,911 INFO L225 Difference]: With dead ends: 27 [2018-11-18 11:19:38,911 INFO L226 Difference]: Without dead ends: 26 [2018-11-18 11:19:38,912 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:19:38,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-18 11:19:38,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 21. [2018-11-18 11:19:38,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-18 11:19:38,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2018-11-18 11:19:38,915 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 8 [2018-11-18 11:19:38,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:19:38,916 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2018-11-18 11:19:38,916 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:19:38,916 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2018-11-18 11:19:38,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 11:19:38,916 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:19:38,916 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:19:38,917 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:19:38,917 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:19:38,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1879650391, now seen corresponding path program 1 times [2018-11-18 11:19:38,917 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:19:38,917 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:19:38,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:19:38,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:19:38,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:19:38,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:19:38,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:19:38,962 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:19:38,962 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:19:38,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:19:38,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:19:38,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:19:38,963 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 3 states. [2018-11-18 11:19:39,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:19:39,029 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2018-11-18 11:19:39,029 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:19:39,030 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-18 11:19:39,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:19:39,030 INFO L225 Difference]: With dead ends: 25 [2018-11-18 11:19:39,030 INFO L226 Difference]: Without dead ends: 24 [2018-11-18 11:19:39,031 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:19:39,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-11-18 11:19:39,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2018-11-18 11:19:39,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-18 11:19:39,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2018-11-18 11:19:39,035 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 10 [2018-11-18 11:19:39,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:19:39,035 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2018-11-18 11:19:39,035 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:19:39,035 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2018-11-18 11:19:39,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 11:19:39,036 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:19:39,036 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:19:39,036 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:19:39,036 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:19:39,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1860380075, now seen corresponding path program 1 times [2018-11-18 11:19:39,037 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:19:39,037 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:19:39,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:19:39,038 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:19:39,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:19:39,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:19:39,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:19:39,059 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:19:39,060 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:19:39,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:19:39,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:19:39,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:19:39,060 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 3 states. [2018-11-18 11:19:39,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:19:39,130 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2018-11-18 11:19:39,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:19:39,131 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-18 11:19:39,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:19:39,131 INFO L225 Difference]: With dead ends: 23 [2018-11-18 11:19:39,131 INFO L226 Difference]: Without dead ends: 22 [2018-11-18 11:19:39,133 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:19:39,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-18 11:19:39,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-11-18 11:19:39,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-18 11:19:39,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-11-18 11:19:39,136 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 11 [2018-11-18 11:19:39,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:19:39,136 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-11-18 11:19:39,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:19:39,137 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-11-18 11:19:39,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 11:19:39,137 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:19:39,138 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:19:39,138 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:19:39,139 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:19:39,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1837207531, now seen corresponding path program 1 times [2018-11-18 11:19:39,139 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:19:39,139 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:19:39,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:19:39,140 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:19:39,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:19:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:19:39,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:19:39,169 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:19:39,170 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:19:39,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:19:39,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:19:39,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:19:39,170 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 3 states. [2018-11-18 11:19:39,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:19:39,208 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-11-18 11:19:39,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:19:39,208 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-11-18 11:19:39,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:19:39,208 INFO L225 Difference]: With dead ends: 22 [2018-11-18 11:19:39,209 INFO L226 Difference]: Without dead ends: 21 [2018-11-18 11:19:39,209 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:19:39,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-18 11:19:39,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-11-18 11:19:39,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-18 11:19:39,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2018-11-18 11:19:39,212 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 12 [2018-11-18 11:19:39,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:19:39,212 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2018-11-18 11:19:39,212 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:19:39,213 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2018-11-18 11:19:39,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 11:19:39,213 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:19:39,213 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:19:39,213 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:19:39,213 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:19:39,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1118858669, now seen corresponding path program 1 times [2018-11-18 11:19:39,214 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:19:39,214 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:19:39,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:19:39,215 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:19:39,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:19:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:19:39,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:19:39,273 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:19:39,273 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:19:39,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:19:39,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:19:39,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:19:39,274 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 3 states. [2018-11-18 11:19:39,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:19:39,388 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2018-11-18 11:19:39,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:19:39,388 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-11-18 11:19:39,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:19:39,389 INFO L225 Difference]: With dead ends: 25 [2018-11-18 11:19:39,389 INFO L226 Difference]: Without dead ends: 24 [2018-11-18 11:19:39,389 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:19:39,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-11-18 11:19:39,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-11-18 11:19:39,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-18 11:19:39,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-11-18 11:19:39,392 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 13 [2018-11-18 11:19:39,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:19:39,393 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-11-18 11:19:39,393 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:19:39,393 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-11-18 11:19:39,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 11:19:39,393 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:19:39,393 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:19:39,394 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:19:39,395 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:19:39,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1322538245, now seen corresponding path program 1 times [2018-11-18 11:19:39,395 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:19:39,395 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:19:39,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:19:39,396 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:19:39,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:19:39,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:19:39,470 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:19:39,470 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:19:39,471 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dce4f9f4-4fe7-48f3-a8ef-ea757d1e8b20/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:19:39,485 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:19:39,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:19:39,499 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:19:39,634 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:19:39,657 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 11:19:39,657 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2018-11-18 11:19:39,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 11:19:39,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 11:19:39,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-11-18 11:19:39,659 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 9 states. [2018-11-18 11:19:39,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:19:39,945 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2018-11-18 11:19:39,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 11:19:39,946 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2018-11-18 11:19:39,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:19:39,946 INFO L225 Difference]: With dead ends: 32 [2018-11-18 11:19:39,946 INFO L226 Difference]: Without dead ends: 31 [2018-11-18 11:19:39,947 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2018-11-18 11:19:39,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-18 11:19:39,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2018-11-18 11:19:39,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-18 11:19:39,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2018-11-18 11:19:39,952 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 16 [2018-11-18 11:19:39,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:19:39,952 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2018-11-18 11:19:39,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 11:19:39,952 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2018-11-18 11:19:39,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 11:19:39,953 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:19:39,953 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:19:39,953 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:19:39,953 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:19:39,954 INFO L82 PathProgramCache]: Analyzing trace with hash 351067709, now seen corresponding path program 1 times [2018-11-18 11:19:39,954 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:19:39,954 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:19:39,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:19:39,955 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:19:39,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:19:39,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:19:40,000 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:19:40,000 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:19:40,000 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dce4f9f4-4fe7-48f3-a8ef-ea757d1e8b20/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:19:40,010 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:19:40,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:19:40,016 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:19:40,020 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:19:40,043 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 11:19:40,043 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2018-11-18 11:19:40,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 11:19:40,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 11:19:40,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 11:19:40,045 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 4 states. [2018-11-18 11:19:40,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:19:40,084 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2018-11-18 11:19:40,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 11:19:40,084 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-11-18 11:19:40,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:19:40,085 INFO L225 Difference]: With dead ends: 31 [2018-11-18 11:19:40,085 INFO L226 Difference]: Without dead ends: 30 [2018-11-18 11:19:40,085 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 11:19:40,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-11-18 11:19:40,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2018-11-18 11:19:40,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-18 11:19:40,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2018-11-18 11:19:40,090 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 18 [2018-11-18 11:19:40,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:19:40,090 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2018-11-18 11:19:40,090 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 11:19:40,090 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2018-11-18 11:19:40,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 11:19:40,090 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:19:40,090 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:19:40,091 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:19:40,091 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:19:40,091 INFO L82 PathProgramCache]: Analyzing trace with hash 412804761, now seen corresponding path program 1 times [2018-11-18 11:19:40,091 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:19:40,091 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:19:40,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:19:40,092 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:19:40,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:19:40,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:19:40,200 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:19:40,201 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:19:40,201 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dce4f9f4-4fe7-48f3-a8ef-ea757d1e8b20/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:19:40,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:19:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:19:40,225 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:19:40,227 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:19:40,255 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 11:19:40,255 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2018-11-18 11:19:40,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 11:19:40,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 11:19:40,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 11:19:40,256 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand 4 states. [2018-11-18 11:19:40,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:19:40,386 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2018-11-18 11:19:40,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 11:19:40,386 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-11-18 11:19:40,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:19:40,387 INFO L225 Difference]: With dead ends: 33 [2018-11-18 11:19:40,387 INFO L226 Difference]: Without dead ends: 32 [2018-11-18 11:19:40,387 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 11:19:40,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-18 11:19:40,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-18 11:19:40,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-18 11:19:40,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2018-11-18 11:19:40,390 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 21 [2018-11-18 11:19:40,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:19:40,390 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2018-11-18 11:19:40,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 11:19:40,390 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2018-11-18 11:19:40,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 11:19:40,390 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:19:40,390 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2018-11-18 11:19:40,390 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:19:40,391 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:19:40,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1375304335, now seen corresponding path program 2 times [2018-11-18 11:19:40,391 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:19:40,391 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:19:40,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:19:40,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:19:40,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:19:40,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:19:40,476 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:19:40,476 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:19:40,476 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dce4f9f4-4fe7-48f3-a8ef-ea757d1e8b20/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:19:40,484 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 11:19:40,491 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 11:19:40,491 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 11:19:40,493 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:19:40,635 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:19:40,654 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 11:19:40,654 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2018-11-18 11:19:40,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-18 11:19:40,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-18 11:19:40,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2018-11-18 11:19:40,655 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 13 states. [2018-11-18 11:19:40,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:19:40,921 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2018-11-18 11:19:40,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 11:19:40,922 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 24 [2018-11-18 11:19:40,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:19:40,922 INFO L225 Difference]: With dead ends: 40 [2018-11-18 11:19:40,923 INFO L226 Difference]: Without dead ends: 39 [2018-11-18 11:19:40,923 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=283, Unknown=0, NotChecked=0, Total=420 [2018-11-18 11:19:40,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-18 11:19:40,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 35. [2018-11-18 11:19:40,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-18 11:19:40,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2018-11-18 11:19:40,927 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 24 [2018-11-18 11:19:40,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:19:40,927 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2018-11-18 11:19:40,927 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-18 11:19:40,927 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2018-11-18 11:19:40,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 11:19:40,928 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:19:40,928 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2018-11-18 11:19:40,928 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:19:40,928 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:19:40,928 INFO L82 PathProgramCache]: Analyzing trace with hash -1182459695, now seen corresponding path program 2 times [2018-11-18 11:19:40,928 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:19:40,928 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:19:40,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:19:40,930 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:19:40,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:19:40,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:19:40,994 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:19:40,994 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:19:40,994 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dce4f9f4-4fe7-48f3-a8ef-ea757d1e8b20/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:19:41,001 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 11:19:41,009 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 11:19:41,009 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 11:19:41,010 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:19:41,014 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:19:41,032 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 11:19:41,032 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-11-18 11:19:41,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 11:19:41,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 11:19:41,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:19:41,033 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 5 states. [2018-11-18 11:19:41,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:19:41,055 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2018-11-18 11:19:41,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 11:19:41,056 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2018-11-18 11:19:41,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:19:41,057 INFO L225 Difference]: With dead ends: 39 [2018-11-18 11:19:41,057 INFO L226 Difference]: Without dead ends: 38 [2018-11-18 11:19:41,058 INFO L604 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 [2018-11-18 11:19:41,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-18 11:19:41,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2018-11-18 11:19:41,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-18 11:19:41,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2018-11-18 11:19:41,061 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 26 [2018-11-18 11:19:41,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:19:41,061 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2018-11-18 11:19:41,061 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 11:19:41,061 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2018-11-18 11:19:41,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-18 11:19:41,062 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:19:41,062 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1] [2018-11-18 11:19:41,062 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:19:41,062 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:19:41,063 INFO L82 PathProgramCache]: Analyzing trace with hash 665039749, now seen corresponding path program 2 times [2018-11-18 11:19:41,063 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:19:41,063 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:19:41,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:19:41,064 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:19:41,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:19:41,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:19:41,133 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:19:41,133 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:19:41,133 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dce4f9f4-4fe7-48f3-a8ef-ea757d1e8b20/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:19:41,140 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 11:19:41,150 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 11:19:41,150 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 11:19:41,153 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:19:41,211 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:19:41,233 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 11:19:41,233 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2018-11-18 11:19:41,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 11:19:41,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 11:19:41,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-11-18 11:19:41,234 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand 9 states. [2018-11-18 11:19:41,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:19:41,338 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2018-11-18 11:19:41,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 11:19:41,339 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2018-11-18 11:19:41,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:19:41,339 INFO L225 Difference]: With dead ends: 44 [2018-11-18 11:19:41,340 INFO L226 Difference]: Without dead ends: 43 [2018-11-18 11:19:41,340 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2018-11-18 11:19:41,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-18 11:19:41,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 36. [2018-11-18 11:19:41,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-18 11:19:41,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2018-11-18 11:19:41,343 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 29 [2018-11-18 11:19:41,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:19:41,343 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2018-11-18 11:19:41,344 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 11:19:41,344 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2018-11-18 11:19:41,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-18 11:19:41,344 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:19:41,344 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2018-11-18 11:19:41,345 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:19:41,345 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:19:41,345 INFO L82 PathProgramCache]: Analyzing trace with hash -484936157, now seen corresponding path program 3 times [2018-11-18 11:19:41,345 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:19:41,345 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:19:41,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:19:41,346 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:19:41,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:19:41,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:19:41,406 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-11-18 11:19:41,406 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:19:41,407 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 11:19:41,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 11:19:41,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 11:19:41,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:19:41,407 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand 5 states. [2018-11-18 11:19:41,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:19:41,429 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2018-11-18 11:19:41,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 11:19:41,430 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2018-11-18 11:19:41,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:19:41,430 INFO L225 Difference]: With dead ends: 36 [2018-11-18 11:19:41,430 INFO L226 Difference]: Without dead ends: 35 [2018-11-18 11:19:41,430 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:19:41,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-18 11:19:41,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-11-18 11:19:41,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-18 11:19:41,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2018-11-18 11:19:41,433 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 32 [2018-11-18 11:19:41,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:19:41,434 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2018-11-18 11:19:41,434 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 11:19:41,434 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2018-11-18 11:19:41,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 11:19:41,434 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:19:41,435 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2018-11-18 11:19:41,435 INFO L423 AbstractCegarLoop]: === Iteration 14 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:19:41,435 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:19:41,435 INFO L82 PathProgramCache]: Analyzing trace with hash 2127789925, now seen corresponding path program 3 times [2018-11-18 11:19:41,435 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:19:41,435 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:19:41,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:19:41,436 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:19:41,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:19:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:19:41,459 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-11-18 11:19:41,459 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:19:41,459 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 11:19:41,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 11:19:41,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 11:19:41,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:19:41,460 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 5 states. [2018-11-18 11:19:41,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:19:41,482 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2018-11-18 11:19:41,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 11:19:41,482 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2018-11-18 11:19:41,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:19:41,483 INFO L225 Difference]: With dead ends: 35 [2018-11-18 11:19:41,483 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 11:19:41,483 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-18 11:19:41,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 11:19:41,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 11:19:41,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 11:19:41,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 11:19:41,484 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2018-11-18 11:19:41,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:19:41,484 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 11:19:41,484 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 11:19:41,485 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 11:19:41,485 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 11:19:41,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 11:19:41,586 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 11:19:41,587 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 11:19:41,587 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 11:19:41,587 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 11:19:41,587 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 11:19:41,587 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 11:19:41,587 INFO L425 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2018-11-18 11:19:41,587 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2018-11-18 11:19:41,587 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 11 20) no Hoare annotation was computed. [2018-11-18 11:19:41,587 INFO L425 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-11-18 11:19:41,587 INFO L425 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2018-11-18 11:19:41,587 INFO L425 ceAbstractionStarter]: For program point L15-1(lines 15 18) no Hoare annotation was computed. [2018-11-18 11:19:41,587 INFO L425 ceAbstractionStarter]: For program point L15-2(line 15) no Hoare annotation was computed. [2018-11-18 11:19:41,588 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 11 20) no Hoare annotation was computed. [2018-11-18 11:19:41,588 INFO L425 ceAbstractionStarter]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2018-11-18 11:19:41,588 INFO L421 ceAbstractionStarter]: At program point L15-5(lines 15 18) the Hoare annotation is: (let ((.cse0 (<= main_~i~0 10000))) (or (and .cse0 (<= (+ main_~j~0 1) main_~i~0) (<= main_~i~0 (+ main_~j~0 9999)) (<= 10000 main_~i~0)) (and (<= 2 main_~j~0) .cse0 (<= (+ main_~j~0 9997) main_~i~0)) (and (<= main_~j~0 (+ main_~i~0 1)) .cse0 (<= 3 main_~j~0)))) [2018-11-18 11:19:41,588 INFO L425 ceAbstractionStarter]: For program point L15-6(lines 15 18) no Hoare annotation was computed. [2018-11-18 11:19:41,588 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2018-11-18 11:19:41,588 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 11 20) the Hoare annotation is: true [2018-11-18 11:19:41,588 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2018-11-18 11:19:41,588 INFO L425 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2018-11-18 11:19:41,588 INFO L425 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-11-18 11:19:41,588 INFO L425 ceAbstractionStarter]: For program point L16-1(line 16) no Hoare annotation was computed. [2018-11-18 11:19:41,588 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2018-11-18 11:19:41,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:19:41 BoogieIcfgContainer [2018-11-18 11:19:41,599 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 11:19:41,599 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:19:41,599 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:19:41,599 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:19:41,600 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:19:38" (3/4) ... [2018-11-18 11:19:41,603 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 11:19:41,607 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 11:19:41,607 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 11:19:41,610 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 11:19:41,610 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 11:19:41,610 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 11:19:41,638 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_dce4f9f4-4fe7-48f3-a8ef-ea757d1e8b20/bin-2019/uautomizer/witness.graphml [2018-11-18 11:19:41,638 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:19:41,639 INFO L168 Benchmark]: Toolchain (without parser) took 3672.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.1 MB). Free memory was 958.5 MB in the beginning and 899.9 MB in the end (delta: 58.5 MB). Peak memory consumption was 232.6 MB. Max. memory is 11.5 GB. [2018-11-18 11:19:41,640 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:19:41,640 INFO L168 Benchmark]: CACSL2BoogieTranslator took 175.27 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 947.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:19:41,641 INFO L168 Benchmark]: Boogie Preprocessor took 23.86 ms. Allocated memory is still 1.0 GB. Free memory is still 947.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:19:41,641 INFO L168 Benchmark]: RCFGBuilder took 231.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.1 MB). Free memory was 945.0 MB in the beginning and 1.2 GB in the end (delta: -215.3 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:19:41,641 INFO L168 Benchmark]: TraceAbstraction took 3199.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 899.9 MB in the end (delta: 260.5 MB). Peak memory consumption was 260.5 MB. Max. memory is 11.5 GB. [2018-11-18 11:19:41,642 INFO L168 Benchmark]: Witness Printer took 39.40 ms. Allocated memory is still 1.2 GB. Free memory is still 899.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:19:41,643 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 175.27 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 947.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.86 ms. Allocated memory is still 1.0 GB. Free memory is still 947.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 231.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.1 MB). Free memory was 945.0 MB in the beginning and 1.2 GB in the end (delta: -215.3 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3199.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 899.9 MB in the end (delta: 260.5 MB). Peak memory consumption was 260.5 MB. Max. memory is 11.5 GB. * Witness Printer took 39.40 ms. Allocated memory is still 1.2 GB. Free memory is still 899.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: ((((i <= 10000 && j + 1 <= i) && i <= j + 9999) && 10000 <= i) || ((2 <= j && i <= 10000) && j + 9997 <= i)) || ((j <= i + 1 && i <= 10000) && 3 <= j) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 24 locations, 6 error locations. SAFE Result, 3.1s OverallTime, 14 OverallIterations, 4 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 132 SDtfs, 152 SDslu, 215 SDs, 0 SdLazy, 397 SolverSat, 51 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 192 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 14 MinimizatonAttempts, 23 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 8 NumberOfFragments, 46 HoareAnnotationTreeSize, 5 FomulaSimplifications, 58 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 53 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 395 NumberOfCodeBlocks, 395 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 375 ConstructedInterpolants, 0 QuantifiedInterpolants, 22605 SizeOfPredicates, 1 NumberOfNonLiveVariables, 228 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 20 InterpolantComputations, 8 PerfectInterpolantSequences, 86/216 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...