./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_true-unreach-call4_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5364be1e-844d-43dd-b1a1-cc3ceadbb39d/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5364be1e-844d-43dd-b1a1-cc3ceadbb39d/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5364be1e-844d-43dd-b1a1-cc3ceadbb39d/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5364be1e-844d-43dd-b1a1-cc3ceadbb39d/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_true-unreach-call4_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_5364be1e-844d-43dd-b1a1-cc3ceadbb39d/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5364be1e-844d-43dd-b1a1-cc3ceadbb39d/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8538ad1ae962a1ba831f755fb5c2de9d27f82db5 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 10:04:27,613 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:04:27,614 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:04:27,622 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:04:27,623 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:04:27,623 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:04:27,624 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:04:27,625 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:04:27,626 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:04:27,627 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:04:27,627 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:04:27,628 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:04:27,628 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:04:27,629 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:04:27,630 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:04:27,630 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:04:27,631 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:04:27,632 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:04:27,633 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:04:27,634 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:04:27,635 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:04:27,636 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:04:27,637 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:04:27,637 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:04:27,637 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:04:27,638 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:04:27,639 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:04:27,639 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:04:27,640 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:04:27,640 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:04:27,640 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:04:27,641 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:04:27,641 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:04:27,641 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:04:27,642 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:04:27,642 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:04:27,642 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5364be1e-844d-43dd-b1a1-cc3ceadbb39d/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-18 10:04:27,651 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:04:27,651 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:04:27,652 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:04:27,652 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 10:04:27,653 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 10:04:27,653 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 10:04:27,653 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 10:04:27,653 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:04:27,653 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:04:27,653 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:04:27,653 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:04:27,654 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:04:27,654 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:04:27,654 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:04:27,654 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:04:27,654 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:04:27,654 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:04:27,654 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:04:27,654 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:04:27,655 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:04:27,655 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:04:27,655 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:04:27,655 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:04:27,655 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:04:27,655 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:04:27,655 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:04:27,655 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:04:27,656 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 10:04:27,656 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:04:27,656 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 10:04:27,656 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_5364be1e-844d-43dd-b1a1-cc3ceadbb39d/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 ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8538ad1ae962a1ba831f755fb5c2de9d27f82db5 [2018-11-18 10:04:27,678 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:04:27,689 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:04:27,691 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:04:27,692 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:04:27,693 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:04:27,694 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5364be1e-844d-43dd-b1a1-cc3ceadbb39d/bin-2019/uautomizer/../../sv-benchmarks/c/loop-crafted/simple_array_index_value_true-unreach-call4_true-termination.i [2018-11-18 10:04:27,738 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5364be1e-844d-43dd-b1a1-cc3ceadbb39d/bin-2019/uautomizer/data/562f0582b/da1995ca33684147bf22673c19c09bc6/FLAG6ff5bf6a9 [2018-11-18 10:04:28,139 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:04:28,139 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5364be1e-844d-43dd-b1a1-cc3ceadbb39d/sv-benchmarks/c/loop-crafted/simple_array_index_value_true-unreach-call4_true-termination.i [2018-11-18 10:04:28,143 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5364be1e-844d-43dd-b1a1-cc3ceadbb39d/bin-2019/uautomizer/data/562f0582b/da1995ca33684147bf22673c19c09bc6/FLAG6ff5bf6a9 [2018-11-18 10:04:28,151 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5364be1e-844d-43dd-b1a1-cc3ceadbb39d/bin-2019/uautomizer/data/562f0582b/da1995ca33684147bf22673c19c09bc6 [2018-11-18 10:04:28,153 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:04:28,154 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 10:04:28,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:04:28,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:04:28,158 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:04:28,158 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:04:28" (1/1) ... [2018-11-18 10:04:28,160 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@411459c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:04:28, skipping insertion in model container [2018-11-18 10:04:28,160 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:04:28" (1/1) ... [2018-11-18 10:04:28,167 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:04:28,180 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:04:28,290 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:04:28,292 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:04:28,304 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:04:28,315 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:04:28,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:04:28 WrapperNode [2018-11-18 10:04:28,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:04:28,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:04:28,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:04:28,316 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:04:28,328 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:04:28" (1/1) ... [2018-11-18 10:04:28,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:04:28" (1/1) ... [2018-11-18 10:04:28,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:04:28" (1/1) ... [2018-11-18 10:04:28,335 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:04:28" (1/1) ... [2018-11-18 10:04:28,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:04:28" (1/1) ... [2018-11-18 10:04:28,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:04:28" (1/1) ... [2018-11-18 10:04:28,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:04:28" (1/1) ... [2018-11-18 10:04:28,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:04:28,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:04:28,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:04:28,348 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:04:28,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:04:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5364be1e-844d-43dd-b1a1-cc3ceadbb39d/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 10:04:28,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:04:28,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:04:28,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 10:04:28,426 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:04:28,426 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 10:04:28,426 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-18 10:04:28,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 10:04:28,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2018-11-18 10:04:28,427 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:04:28,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:04:28,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 10:04:28,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 10:04:28,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:04:28,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:04:28,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 10:04:28,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 10:04:28,574 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:04:28,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:04:28 BoogieIcfgContainer [2018-11-18 10:04:28,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:04:28,575 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:04:28,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:04:28,578 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:04:28,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:04:28" (1/3) ... [2018-11-18 10:04:28,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@793699ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:04:28, skipping insertion in model container [2018-11-18 10:04:28,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:04:28" (2/3) ... [2018-11-18 10:04:28,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@793699ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:04:28, skipping insertion in model container [2018-11-18 10:04:28,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:04:28" (3/3) ... [2018-11-18 10:04:28,581 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_true-unreach-call4_true-termination.i [2018-11-18 10:04:28,589 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:04:28,595 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 10:04:28,609 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 10:04:28,634 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 10:04:28,634 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:04:28,634 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:04:28,634 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:04:28,635 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:04:28,635 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:04:28,635 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:04:28,635 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:04:28,635 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:04:28,650 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-11-18 10:04:28,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 10:04:28,655 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:04:28,657 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:04:28,659 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:04:28,664 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:04:28,664 INFO L82 PathProgramCache]: Analyzing trace with hash 853272646, now seen corresponding path program 1 times [2018-11-18 10:04:28,666 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:04:28,666 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:04:28,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:04:28,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:04:28,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:04:28,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:04:28,818 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 10:04:28,820 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:04:28,820 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 10:04:28,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 10:04:28,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 10:04:28,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 10:04:28,834 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 5 states. [2018-11-18 10:04:28,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:04:28,929 INFO L93 Difference]: Finished difference Result 62 states and 85 transitions. [2018-11-18 10:04:28,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 10:04:28,931 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2018-11-18 10:04:28,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:04:28,936 INFO L225 Difference]: With dead ends: 62 [2018-11-18 10:04:28,937 INFO L226 Difference]: Without dead ends: 34 [2018-11-18 10:04:28,939 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 10:04:28,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-18 10:04:28,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 28. [2018-11-18 10:04:28,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-18 10:04:28,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2018-11-18 10:04:28,965 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 12 [2018-11-18 10:04:28,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:04:28,965 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2018-11-18 10:04:28,965 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 10:04:28,966 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2018-11-18 10:04:28,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 10:04:28,967 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:04:28,967 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:04:28,967 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:04:28,967 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:04:28,967 INFO L82 PathProgramCache]: Analyzing trace with hash 653700861, now seen corresponding path program 1 times [2018-11-18 10:04:28,967 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:04:28,967 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:04:28,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:04:28,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:04:28,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:04:28,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:04:29,007 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 10:04:29,007 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:04:29,007 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 10:04:29,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 10:04:29,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 10:04:29,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:04:29,009 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand 3 states. [2018-11-18 10:04:29,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:04:29,016 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2018-11-18 10:04:29,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 10:04:29,016 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-18 10:04:29,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:04:29,017 INFO L225 Difference]: With dead ends: 40 [2018-11-18 10:04:29,017 INFO L226 Difference]: Without dead ends: 29 [2018-11-18 10:04:29,018 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:04:29,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-11-18 10:04:29,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2018-11-18 10:04:29,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-18 10:04:29,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2018-11-18 10:04:29,023 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 15 [2018-11-18 10:04:29,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:04:29,023 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2018-11-18 10:04:29,023 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 10:04:29,023 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2018-11-18 10:04:29,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 10:04:29,024 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:04:29,024 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:04:29,024 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:04:29,024 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:04:29,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1313509780, now seen corresponding path program 1 times [2018-11-18 10:04:29,025 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:04:29,025 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:04:29,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:04:29,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:04:29,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:04:29,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:04:29,189 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:04:29,189 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:04:29,189 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 10:04:29,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 10:04:29,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 10:04:29,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-18 10:04:29,190 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand 8 states. [2018-11-18 10:04:29,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:04:29,277 INFO L93 Difference]: Finished difference Result 43 states and 46 transitions. [2018-11-18 10:04:29,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 10:04:29,278 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2018-11-18 10:04:29,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:04:29,278 INFO L225 Difference]: With dead ends: 43 [2018-11-18 10:04:29,279 INFO L226 Difference]: Without dead ends: 41 [2018-11-18 10:04:29,279 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-11-18 10:04:29,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-18 10:04:29,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 27. [2018-11-18 10:04:29,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-18 10:04:29,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2018-11-18 10:04:29,285 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 20 [2018-11-18 10:04:29,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:04:29,285 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2018-11-18 10:04:29,286 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 10:04:29,286 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2018-11-18 10:04:29,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 10:04:29,287 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:04:29,287 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:04:29,287 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:04:29,289 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:04:29,290 INFO L82 PathProgramCache]: Analyzing trace with hash 2042551023, now seen corresponding path program 1 times [2018-11-18 10:04:29,290 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:04:29,290 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:04:29,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:04:29,291 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:04:29,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:04:29,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:04:29,608 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 36 [2018-11-18 10:04:29,689 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:04:29,690 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:04:29,690 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5364be1e-844d-43dd-b1a1-cc3ceadbb39d/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 10:04:29,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:04:30,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:04:30,206 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:04:31,118 WARN L180 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-11-18 10:04:31,151 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-11-18 10:04:31,152 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 10:04:31,270 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 42 [2018-11-18 10:04:31,275 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:04:31,277 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:04:31,285 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 10:04:31,293 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 10:04:31,298 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 60 [2018-11-18 10:04:31,299 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 10:04:31,308 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 10:04:31,372 INFO L267 ElimStorePlain]: Start of recursive call 1: 12 dim-0 vars, 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 10:04:31,372 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 16 variables, input treesize:381, output treesize:7 [2018-11-18 10:04:31,399 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:04:31,414 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 10:04:31,414 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 14 [2018-11-18 10:04:31,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 10:04:31,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 10:04:31,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2018-11-18 10:04:31,416 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 14 states. [2018-11-18 10:04:31,740 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 32 [2018-11-18 10:04:33,923 WARN L180 SmtUtils]: Spent 2.05 s on a formula simplification that was a NOOP. DAG size: 43 [2018-11-18 10:04:38,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:04:38,687 INFO L93 Difference]: Finished difference Result 43 states and 46 transitions. [2018-11-18 10:04:38,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 10:04:38,690 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 23 [2018-11-18 10:04:38,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:04:38,691 INFO L225 Difference]: With dead ends: 43 [2018-11-18 10:04:38,691 INFO L226 Difference]: Without dead ends: 41 [2018-11-18 10:04:38,692 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2018-11-18 10:04:38,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-18 10:04:38,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 34. [2018-11-18 10:04:38,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-18 10:04:38,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2018-11-18 10:04:38,698 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 23 [2018-11-18 10:04:38,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:04:38,698 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2018-11-18 10:04:38,698 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 10:04:38,699 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2018-11-18 10:04:38,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 10:04:38,699 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:04:38,699 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:04:38,700 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:04:38,700 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:04:38,700 INFO L82 PathProgramCache]: Analyzing trace with hash -856614261, now seen corresponding path program 1 times [2018-11-18 10:04:38,700 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:04:38,700 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:04:38,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:04:38,701 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:04:38,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:04:38,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:04:40,841 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-18 10:04:40,841 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:04:40,841 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5364be1e-844d-43dd-b1a1-cc3ceadbb39d/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 10:04:40,847 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:04:40,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:04:40,860 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:04:40,892 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-18 10:04:40,907 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 10:04:40,908 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 9 [2018-11-18 10:04:40,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 10:04:40,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 10:04:40,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=48, Unknown=1, NotChecked=0, Total=72 [2018-11-18 10:04:40,908 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 9 states. [2018-11-18 10:04:45,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:04:45,446 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2018-11-18 10:04:45,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 10:04:45,446 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2018-11-18 10:04:45,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:04:45,447 INFO L225 Difference]: With dead ends: 39 [2018-11-18 10:04:45,447 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 10:04:45,447 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=38, Invalid=71, Unknown=1, NotChecked=0, Total=110 [2018-11-18 10:04:45,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 10:04:45,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 10:04:45,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 10:04:45,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 10:04:45,448 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-11-18 10:04:45,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:04:45,448 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 10:04:45,448 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 10:04:45,448 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 10:04:45,448 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 10:04:45,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 10:04:47,577 WARN L180 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2018-11-18 10:05:01,612 WARN L180 SmtUtils]: Spent 14.03 s on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2018-11-18 10:05:13,016 WARN L180 SmtUtils]: Spent 11.40 s on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2018-11-18 10:05:13,101 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 10:05:13,102 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 10:05:13,102 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:05:13,102 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:05:13,102 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 10:05:13,102 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 10:05:13,102 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 10:05:13,102 INFO L425 ceAbstractionStarter]: For program point L31-1(lines 31 37) no Hoare annotation was computed. [2018-11-18 10:05:13,103 INFO L421 ceAbstractionStarter]: At program point L31-3(lines 31 37) the Hoare annotation is: (let ((.cse0 (= 0 |main_~#array~0.offset|))) (or (and (<= main_~index2~0 (+ (* 4294967296 (div main_~index2~0 4294967296)) 99999)) (= main_~loop_entered~0 0) .cse0 (< (mod main_~index1~0 4294967296) 100000)) (let ((.cse1 (+ main_~index2~0 1))) (let ((.cse2 (mod .cse1 4294967296))) (and (<= (+ main_~index1~0 (* 4294967296 (div (+ (- main_~index1~0) (+ main_~index2~0 4294867298)) 4294967296))) .cse1) .cse0 (< .cse2 100000) (let ((.cse3 (select |#memory_int| |main_~#array~0.base|))) (= (mod (select .cse3 (+ (* 4 .cse2) |main_~#array~0.offset|)) 4294967296) (mod (select .cse3 (+ (* 4 (mod (+ main_~index1~0 4294967295) 4294967296)) |main_~#array~0.offset|)) 4294967296))) (<= main_~index1~0 (+ (* 4294967296 (div (+ main_~index1~0 (- 1)) 4294967296)) 100000))))))) [2018-11-18 10:05:13,103 INFO L425 ceAbstractionStarter]: For program point L31-4(lines 20 47) no Hoare annotation was computed. [2018-11-18 10:05:13,103 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 19 47) no Hoare annotation was computed. [2018-11-18 10:05:13,103 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 19 47) no Hoare annotation was computed. [2018-11-18 10:05:13,103 INFO L425 ceAbstractionStarter]: For program point L40-1(lines 40 44) no Hoare annotation was computed. [2018-11-18 10:05:13,104 INFO L421 ceAbstractionStarter]: At program point L40-3(lines 40 44) the Hoare annotation is: (or (let ((.cse0 (* 4294967296 (div main_~index1~0 4294967296)))) (and (<= main_~index1~0 (+ .cse0 99999)) (<= (+ (* 4294967296 (div main_~index2~0 4294967296)) main_~index1~0 1) (+ main_~index2~0 .cse0)))) (let ((.cse1 (+ main_~index2~0 1))) (let ((.cse2 (mod .cse1 4294967296))) (and (<= (+ main_~index1~0 (* 4294967296 (div (+ (- main_~index1~0) (+ main_~index2~0 4294867298)) 4294967296))) .cse1) (= 0 |main_~#array~0.offset|) (< .cse2 100000) (let ((.cse3 (select |#memory_int| |main_~#array~0.base|))) (= (mod (select .cse3 (+ (* 4 .cse2) |main_~#array~0.offset|)) 4294967296) (mod (select .cse3 (+ (* 4 (mod (+ main_~index1~0 4294967295) 4294967296)) |main_~#array~0.offset|)) 4294967296))) (<= main_~index1~0 (+ (* 4294967296 (div (+ main_~index1~0 (- 1)) 4294967296)) 100000)))))) [2018-11-18 10:05:13,104 INFO L421 ceAbstractionStarter]: At program point L32(line 32) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~index2~0 4294967296)))) (and (<= main_~index2~0 (+ .cse0 99999)) (<= (+ .cse0 main_~index1~0 1) (+ main_~index2~0 (* 4294967296 (div main_~index1~0 4294967296)))) (= 0 |main_~#array~0.offset|) (or (<= main_~index2~0 (+ .cse0 99998)) (= main_~loop_entered~0 0)))) [2018-11-18 10:05:13,104 INFO L425 ceAbstractionStarter]: For program point L32-1(line 32) no Hoare annotation was computed. [2018-11-18 10:05:13,104 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 19 47) the Hoare annotation is: true [2018-11-18 10:05:13,104 INFO L421 ceAbstractionStarter]: At program point L41(line 41) the Hoare annotation is: (let ((.cse2 (+ main_~index2~0 1))) (let ((.cse3 (mod .cse2 4294967296)) (.cse1 (* 4294967296 (div |main_#t~mem7| 4294967296))) (.cse0 (+ (* 4294967296 (div |main_#t~mem8| 4294967296)) |main_#t~mem7|))) (and (< .cse0 (+ .cse1 |main_#t~mem8| 1)) (<= (+ main_~index1~0 (* 4294967296 (div (+ (- main_~index1~0) (+ main_~index2~0 4294867298)) 4294967296))) .cse2) (= 0 |main_~#array~0.offset|) (< .cse3 100000) (let ((.cse4 (select |#memory_int| |main_~#array~0.base|))) (= (mod (select .cse4 (+ (* 4 .cse3) |main_~#array~0.offset|)) 4294967296) (mod (select .cse4 (+ (* 4 (mod (+ main_~index1~0 4294967295) 4294967296)) |main_~#array~0.offset|)) 4294967296))) (<= (mod main_~index2~0 4294967296) (mod main_~index1~0 4294967296)) (<= main_~index1~0 (+ (* 4294967296 (div (+ main_~index1~0 (- 1)) 4294967296)) 100000)) (<= (+ .cse1 |main_#t~mem8|) .cse0)))) [2018-11-18 10:05:13,105 INFO L425 ceAbstractionStarter]: For program point L41-1(line 41) no Hoare annotation was computed. [2018-11-18 10:05:13,105 INFO L425 ceAbstractionStarter]: For program point L39(lines 39 45) no Hoare annotation was computed. [2018-11-18 10:05:13,105 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 9 15) the Hoare annotation is: true [2018-11-18 10:05:13,105 INFO L425 ceAbstractionStarter]: For program point L12(line 12) no Hoare annotation was computed. [2018-11-18 10:05:13,105 INFO L425 ceAbstractionStarter]: For program point L11(lines 11 13) no Hoare annotation was computed. [2018-11-18 10:05:13,105 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 9 15) no Hoare annotation was computed. [2018-11-18 10:05:13,105 INFO L425 ceAbstractionStarter]: For program point L11-2(lines 9 15) no Hoare annotation was computed. [2018-11-18 10:05:13,105 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2018-11-18 10:05:13,111 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 10:05:13,111 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 10:05:13,115 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 10:05:13,115 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 10:05:13,116 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 10:05:13,116 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 10:05:13,118 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 10:05:13,118 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 10:05:13,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:05:13 BoogieIcfgContainer [2018-11-18 10:05:13,119 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 10:05:13,120 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:05:13,120 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:05:13,120 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:05:13,121 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:04:28" (3/4) ... [2018-11-18 10:05:13,123 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 10:05:13,128 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 10:05:13,128 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 10:05:13,128 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-18 10:05:13,131 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2018-11-18 10:05:13,131 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 10:05:13,132 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 10:05:13,166 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5364be1e-844d-43dd-b1a1-cc3ceadbb39d/bin-2019/uautomizer/witness.graphml [2018-11-18 10:05:13,166 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:05:13,166 INFO L168 Benchmark]: Toolchain (without parser) took 45012.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 181.4 MB). Free memory was 958.0 MB in the beginning and 881.2 MB in the end (delta: 76.8 MB). Peak memory consumption was 258.2 MB. Max. memory is 11.5 GB. [2018-11-18 10:05:13,167 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:05:13,167 INFO L168 Benchmark]: CACSL2BoogieTranslator took 161.45 ms. Allocated memory is still 1.0 GB. Free memory was 958.0 MB in the beginning and 947.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:05:13,168 INFO L168 Benchmark]: Boogie Preprocessor took 31.36 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 939.2 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2018-11-18 10:05:13,168 INFO L168 Benchmark]: RCFGBuilder took 226.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 181.4 MB). Free memory was 939.2 MB in the beginning and 1.2 GB in the end (delta: -223.5 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-18 10:05:13,168 INFO L168 Benchmark]: TraceAbstraction took 44544.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 884.4 MB in the end (delta: 278.3 MB). Peak memory consumption was 278.3 MB. Max. memory is 11.5 GB. [2018-11-18 10:05:13,169 INFO L168 Benchmark]: Witness Printer took 46.08 ms. Allocated memory is still 1.2 GB. Free memory was 884.4 MB in the beginning and 881.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-18 10:05:13,172 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 161.45 ms. Allocated memory is still 1.0 GB. Free memory was 958.0 MB in the beginning and 947.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.36 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 939.2 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 226.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 181.4 MB). Free memory was 939.2 MB in the beginning and 1.2 GB in the end (delta: -223.5 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 44544.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 884.4 MB in the end (delta: 278.3 MB). Peak memory consumption was 278.3 MB. Max. memory is 11.5 GB. * Witness Printer took 46.08 ms. Allocated memory is still 1.2 GB. Free memory was 884.4 MB in the beginning and 881.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 31]: Loop Invariant [2018-11-18 10:05:13,175 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 10:05:13,175 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 10:05:13,176 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 10:05:13,176 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((index2 <= 4294967296 * (index2 / 4294967296) + 99999 && loop_entered == 0) && 0 == array) && index1 % 4294967296 < 100000) || ((((index1 + 4294967296 * ((-index1 + (index2 + 4294867298)) / 4294967296) <= index2 + 1 && 0 == array) && (index2 + 1) % 4294967296 < 100000) && unknown-#memory_int-unknown[array][4 * ((index2 + 1) % 4294967296) + array] % 4294967296 == unknown-#memory_int-unknown[array][4 * ((index1 + 4294967295) % 4294967296) + array] % 4294967296) && index1 <= 4294967296 * ((index1 + -1) / 4294967296) + 100000) - InvariantResult [Line: 40]: Loop Invariant [2018-11-18 10:05:13,177 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 10:05:13,177 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 10:05:13,177 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 10:05:13,178 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (index1 <= 4294967296 * (index1 / 4294967296) + 99999 && 4294967296 * (index2 / 4294967296) + index1 + 1 <= index2 + 4294967296 * (index1 / 4294967296)) || ((((index1 + 4294967296 * ((-index1 + (index2 + 4294867298)) / 4294967296) <= index2 + 1 && 0 == array) && (index2 + 1) % 4294967296 < 100000) && unknown-#memory_int-unknown[array][4 * ((index2 + 1) % 4294967296) + array] % 4294967296 == unknown-#memory_int-unknown[array][4 * ((index1 + 4294967295) % 4294967296) + array] % 4294967296) && index1 <= 4294967296 * ((index1 + -1) / 4294967296) + 100000) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 26 locations, 1 error locations. SAFE Result, 44.4s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 12.0s AutomataDifference, 0.0s DeadEndRemovalTime, 27.6s HoareAnnotationTime, HoareTripleCheckerStatistics: 109 SDtfs, 62 SDslu, 343 SDs, 0 SdLazy, 221 SolverSat, 29 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 8.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 54 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=4, 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, 5 MinimizatonAttempts, 28 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 15 PreInvPairs, 22 NumberOfFragments, 342 HoareAnnotationTreeSize, 15 FomulaSimplifications, 104 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 428 FormulaSimplificationTreeSizeReductionInter, 27.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 155 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 39835 SizeOfPredicates, 11 NumberOfNonLiveVariables, 171 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 31/39 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...