./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label08_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b97aea2e-289e-4e89-96da-cd69aab6831d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b97aea2e-289e-4e89-96da-cd69aab6831d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b97aea2e-289e-4e89-96da-cd69aab6831d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b97aea2e-289e-4e89-96da-cd69aab6831d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label08_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b97aea2e-289e-4e89-96da-cd69aab6831d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b97aea2e-289e-4e89-96da-cd69aab6831d/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 16d1e07abe3d8baa61b9a8d494202a7664f873bb ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 18:14:42,581 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 18:14:42,582 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 18:14:42,588 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 18:14:42,588 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 18:14:42,589 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 18:14:42,590 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 18:14:42,590 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 18:14:42,591 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 18:14:42,592 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 18:14:42,592 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 18:14:42,592 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 18:14:42,593 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 18:14:42,593 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 18:14:42,594 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 18:14:42,594 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 18:14:42,594 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 18:14:42,595 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 18:14:42,596 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 18:14:42,597 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 18:14:42,597 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 18:14:42,598 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 18:14:42,599 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 18:14:42,599 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 18:14:42,599 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 18:14:42,600 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 18:14:42,600 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 18:14:42,600 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 18:14:42,601 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 18:14:42,601 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 18:14:42,601 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 18:14:42,602 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 18:14:42,602 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 18:14:42,602 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 18:14:42,602 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 18:14:42,603 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 18:14:42,603 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b97aea2e-289e-4e89-96da-cd69aab6831d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 18:14:42,609 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 18:14:42,610 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 18:14:42,610 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 18:14:42,610 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 18:14:42,610 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 18:14:42,610 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 18:14:42,610 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 18:14:42,610 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 18:14:42,610 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 18:14:42,611 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 18:14:42,611 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 18:14:42,611 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 18:14:42,611 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 18:14:42,611 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 18:14:42,611 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 18:14:42,611 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 18:14:42,611 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 18:14:42,611 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 18:14:42,612 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 18:14:42,612 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 18:14:42,612 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 18:14:42,612 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 18:14:42,612 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 18:14:42,612 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 18:14:42,612 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 18:14:42,612 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 18:14:42,612 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 18:14:42,612 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 18:14:42,612 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 18:14:42,612 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 18:14:42,613 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 18:14:42,613 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 18:14:42,613 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 18:14:42,613 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 18:14:42,613 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 18:14:42,613 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 18:14:42,613 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_b97aea2e-289e-4e89-96da-cd69aab6831d/bin-2019/utaipan 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 -> Taipan 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 -> 16d1e07abe3d8baa61b9a8d494202a7664f873bb [2018-12-08 18:14:42,629 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 18:14:42,636 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 18:14:42,638 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 18:14:42,639 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 18:14:42,639 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 18:14:42,639 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b97aea2e-289e-4e89-96da-cd69aab6831d/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem01_label08_true-unreach-call_false-termination.c [2018-12-08 18:14:42,676 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b97aea2e-289e-4e89-96da-cd69aab6831d/bin-2019/utaipan/data/b5e44fa95/64799986fa3a44bea596354742539c66/FLAGf7ed24c67 [2018-12-08 18:14:43,140 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 18:14:43,140 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b97aea2e-289e-4e89-96da-cd69aab6831d/sv-benchmarks/c/eca-rers2012/Problem01_label08_true-unreach-call_false-termination.c [2018-12-08 18:14:43,146 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b97aea2e-289e-4e89-96da-cd69aab6831d/bin-2019/utaipan/data/b5e44fa95/64799986fa3a44bea596354742539c66/FLAGf7ed24c67 [2018-12-08 18:14:43,659 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b97aea2e-289e-4e89-96da-cd69aab6831d/bin-2019/utaipan/data/b5e44fa95/64799986fa3a44bea596354742539c66 [2018-12-08 18:14:43,661 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 18:14:43,662 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 18:14:43,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 18:14:43,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 18:14:43,664 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 18:14:43,665 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 06:14:43" (1/1) ... [2018-12-08 18:14:43,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60ff7dc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:14:43, skipping insertion in model container [2018-12-08 18:14:43,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 06:14:43" (1/1) ... [2018-12-08 18:14:43,671 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 18:14:43,693 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 18:14:43,863 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 18:14:43,866 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 18:14:43,945 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 18:14:43,954 INFO L195 MainTranslator]: Completed translation [2018-12-08 18:14:43,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:14:43 WrapperNode [2018-12-08 18:14:43,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 18:14:43,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 18:14:43,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 18:14:43,955 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 18:14:43,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:14:43" (1/1) ... [2018-12-08 18:14:43,969 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:14:43" (1/1) ... [2018-12-08 18:14:43,974 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 18:14:43,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 18:14:43,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 18:14:43,975 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 18:14:43,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:14:43" (1/1) ... [2018-12-08 18:14:43,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:14:43" (1/1) ... [2018-12-08 18:14:43,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:14:43" (1/1) ... [2018-12-08 18:14:43,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:14:43" (1/1) ... [2018-12-08 18:14:43,999 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:14:43" (1/1) ... [2018-12-08 18:14:44,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:14:43" (1/1) ... [2018-12-08 18:14:44,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:14:43" (1/1) ... [2018-12-08 18:14:44,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 18:14:44,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 18:14:44,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 18:14:44,011 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 18:14:44,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:14:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b97aea2e-289e-4e89-96da-cd69aab6831d/bin-2019/utaipan/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 [2018-12-08 18:14:44,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 18:14:44,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 18:14:44,044 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-12-08 18:14:44,044 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-12-08 18:14:44,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 18:14:44,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 18:14:44,044 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 18:14:44,044 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 18:14:44,588 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 18:14:44,588 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-08 18:14:44,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 06:14:44 BoogieIcfgContainer [2018-12-08 18:14:44,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 18:14:44,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 18:14:44,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 18:14:44,591 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 18:14:44,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 06:14:43" (1/3) ... [2018-12-08 18:14:44,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cec428a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 06:14:44, skipping insertion in model container [2018-12-08 18:14:44,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:14:43" (2/3) ... [2018-12-08 18:14:44,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cec428a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 06:14:44, skipping insertion in model container [2018-12-08 18:14:44,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 06:14:44" (3/3) ... [2018-12-08 18:14:44,594 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label08_true-unreach-call_false-termination.c [2018-12-08 18:14:44,602 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 18:14:44,608 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 18:14:44,620 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 18:14:44,647 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 18:14:44,647 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 18:14:44,647 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 18:14:44,647 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 18:14:44,648 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 18:14:44,648 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 18:14:44,648 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 18:14:44,648 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 18:14:44,662 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2018-12-08 18:14:44,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-12-08 18:14:44,669 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:14:44,670 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:14:44,671 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 18:14:44,675 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:14:44,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1920403729, now seen corresponding path program 1 times [2018-12-08 18:14:44,677 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 18:14:44,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:14:44,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:14:44,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:14:44,706 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 18:14:44,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:14:44,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:14:44,933 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 18:14:44,933 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 18:14:44,933 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 18:14:44,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 18:14:44,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 18:14:44,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 18:14:44,951 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2018-12-08 18:14:45,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 18:14:45,356 INFO L93 Difference]: Finished difference Result 547 states and 938 transitions. [2018-12-08 18:14:45,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 18:14:45,357 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2018-12-08 18:14:45,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 18:14:45,365 INFO L225 Difference]: With dead ends: 547 [2018-12-08 18:14:45,365 INFO L226 Difference]: Without dead ends: 278 [2018-12-08 18:14:45,368 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 18:14:45,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2018-12-08 18:14:45,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2018-12-08 18:14:45,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2018-12-08 18:14:45,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 394 transitions. [2018-12-08 18:14:45,402 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 394 transitions. Word has length 119 [2018-12-08 18:14:45,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 18:14:45,403 INFO L480 AbstractCegarLoop]: Abstraction has 278 states and 394 transitions. [2018-12-08 18:14:45,403 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 18:14:45,403 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 394 transitions. [2018-12-08 18:14:45,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-12-08 18:14:45,405 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:14:45,406 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:14:45,406 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 18:14:45,406 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:14:45,406 INFO L82 PathProgramCache]: Analyzing trace with hash 10659704, now seen corresponding path program 1 times [2018-12-08 18:14:45,406 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 18:14:45,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:14:45,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:14:45,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:14:45,408 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 18:14:45,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:14:45,506 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:14:45,507 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 18:14:45,507 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 18:14:45,507 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 18:14:45,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 18:14:45,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 18:14:45,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-08 18:14:45,508 INFO L87 Difference]: Start difference. First operand 278 states and 394 transitions. Second operand 6 states. [2018-12-08 18:14:45,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 18:14:45,895 INFO L93 Difference]: Finished difference Result 840 states and 1222 transitions. [2018-12-08 18:14:45,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 18:14:45,895 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2018-12-08 18:14:45,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 18:14:45,900 INFO L225 Difference]: With dead ends: 840 [2018-12-08 18:14:45,900 INFO L226 Difference]: Without dead ends: 568 [2018-12-08 18:14:45,901 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-12-08 18:14:45,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2018-12-08 18:14:45,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 556. [2018-12-08 18:14:45,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2018-12-08 18:14:45,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 785 transitions. [2018-12-08 18:14:45,934 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 785 transitions. Word has length 129 [2018-12-08 18:14:45,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 18:14:45,934 INFO L480 AbstractCegarLoop]: Abstraction has 556 states and 785 transitions. [2018-12-08 18:14:45,934 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 18:14:45,935 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 785 transitions. [2018-12-08 18:14:45,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-12-08 18:14:45,937 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:14:45,937 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:14:45,938 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 18:14:45,938 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:14:45,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1525536778, now seen corresponding path program 1 times [2018-12-08 18:14:45,938 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 18:14:45,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:14:45,939 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:14:45,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:14:45,939 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 18:14:45,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:14:46,130 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:14:46,130 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 18:14:46,130 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 18:14:46,130 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 18:14:46,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 18:14:46,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 18:14:46,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 18:14:46,131 INFO L87 Difference]: Start difference. First operand 556 states and 785 transitions. Second operand 5 states. [2018-12-08 18:14:46,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 18:14:46,448 INFO L93 Difference]: Finished difference Result 1205 states and 1730 transitions. [2018-12-08 18:14:46,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 18:14:46,448 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 130 [2018-12-08 18:14:46,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 18:14:46,450 INFO L225 Difference]: With dead ends: 1205 [2018-12-08 18:14:46,450 INFO L226 Difference]: Without dead ends: 554 [2018-12-08 18:14:46,451 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 18:14:46,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2018-12-08 18:14:46,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2018-12-08 18:14:46,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2018-12-08 18:14:46,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 712 transitions. [2018-12-08 18:14:46,465 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 712 transitions. Word has length 130 [2018-12-08 18:14:46,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 18:14:46,466 INFO L480 AbstractCegarLoop]: Abstraction has 554 states and 712 transitions. [2018-12-08 18:14:46,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 18:14:46,466 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 712 transitions. [2018-12-08 18:14:46,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-12-08 18:14:46,468 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:14:46,468 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:14:46,468 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 18:14:46,469 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:14:46,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1052025540, now seen corresponding path program 1 times [2018-12-08 18:14:46,469 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 18:14:46,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:14:46,470 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:14:46,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:14:46,470 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 18:14:46,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:14:46,672 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:14:46,672 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 18:14:46,672 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 18:14:46,672 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 18:14:46,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 18:14:46,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 18:14:46,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 18:14:46,673 INFO L87 Difference]: Start difference. First operand 554 states and 712 transitions. Second operand 5 states. [2018-12-08 18:14:46,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 18:14:46,948 INFO L93 Difference]: Finished difference Result 1184 states and 1552 transitions. [2018-12-08 18:14:46,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 18:14:46,948 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 131 [2018-12-08 18:14:46,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 18:14:46,950 INFO L225 Difference]: With dead ends: 1184 [2018-12-08 18:14:46,950 INFO L226 Difference]: Without dead ends: 554 [2018-12-08 18:14:46,951 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 18:14:46,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2018-12-08 18:14:46,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2018-12-08 18:14:46,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2018-12-08 18:14:46,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 708 transitions. [2018-12-08 18:14:46,962 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 708 transitions. Word has length 131 [2018-12-08 18:14:46,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 18:14:46,963 INFO L480 AbstractCegarLoop]: Abstraction has 554 states and 708 transitions. [2018-12-08 18:14:46,963 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 18:14:46,963 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 708 transitions. [2018-12-08 18:14:46,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-12-08 18:14:46,964 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:14:46,964 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:14:46,964 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 18:14:46,964 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:14:46,964 INFO L82 PathProgramCache]: Analyzing trace with hash -866015874, now seen corresponding path program 1 times [2018-12-08 18:14:46,965 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 18:14:46,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:14:46,965 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:14:46,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:14:46,965 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 18:14:46,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:14:47,028 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:14:47,028 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 18:14:47,028 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 18:14:47,028 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 18:14:47,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 18:14:47,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 18:14:47,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 18:14:47,029 INFO L87 Difference]: Start difference. First operand 554 states and 708 transitions. Second operand 3 states. [2018-12-08 18:14:47,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 18:14:47,269 INFO L93 Difference]: Finished difference Result 1509 states and 1954 transitions. [2018-12-08 18:14:47,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 18:14:47,269 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 134 [2018-12-08 18:14:47,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 18:14:47,272 INFO L225 Difference]: With dead ends: 1509 [2018-12-08 18:14:47,272 INFO L226 Difference]: Without dead ends: 961 [2018-12-08 18:14:47,273 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 18:14:47,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2018-12-08 18:14:47,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 959. [2018-12-08 18:14:47,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 959 states. [2018-12-08 18:14:47,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1180 transitions. [2018-12-08 18:14:47,288 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1180 transitions. Word has length 134 [2018-12-08 18:14:47,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 18:14:47,289 INFO L480 AbstractCegarLoop]: Abstraction has 959 states and 1180 transitions. [2018-12-08 18:14:47,289 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 18:14:47,289 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1180 transitions. [2018-12-08 18:14:47,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-12-08 18:14:47,291 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:14:47,291 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:14:47,291 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 18:14:47,291 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:14:47,291 INFO L82 PathProgramCache]: Analyzing trace with hash -494413009, now seen corresponding path program 1 times [2018-12-08 18:14:47,291 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 18:14:47,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:14:47,292 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:14:47,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:14:47,292 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 18:14:47,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:14:47,361 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:14:47,361 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 18:14:47,361 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 18:14:47,362 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 166 with the following transitions: [2018-12-08 18:14:47,363 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [97], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [597], [599], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-08 18:14:47,391 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 18:14:47,391 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 18:14:47,649 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 18:14:47,650 INFO L272 AbstractInterpreter]: Visited 120 different actions 120 times. Never merged. Never widened. Performed 1586 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1586 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 42 variables. [2018-12-08 18:14:47,659 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:14:47,660 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 18:14:47,861 INFO L227 lantSequenceWeakener]: Weakened 156 states. On average, predicates are now at 80.43% of their original sizes. [2018-12-08 18:14:47,861 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 18:14:47,888 INFO L418 sIntCurrentIteration]: We unified 164 AI predicates to 164 [2018-12-08 18:14:47,889 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 18:14:47,889 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 18:14:47,889 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-12-08 18:14:47,889 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 18:14:47,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 18:14:47,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 18:14:47,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-08 18:14:47,890 INFO L87 Difference]: Start difference. First operand 959 states and 1180 transitions. Second operand 6 states. [2018-12-08 18:14:49,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 18:14:49,749 INFO L93 Difference]: Finished difference Result 2048 states and 2511 transitions. [2018-12-08 18:14:49,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 18:14:49,750 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2018-12-08 18:14:49,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 18:14:49,753 INFO L225 Difference]: With dead ends: 2048 [2018-12-08 18:14:49,753 INFO L226 Difference]: Without dead ends: 1095 [2018-12-08 18:14:49,755 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 165 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-08 18:14:49,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2018-12-08 18:14:49,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 1094. [2018-12-08 18:14:49,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1094 states. [2018-12-08 18:14:49,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1321 transitions. [2018-12-08 18:14:49,777 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1321 transitions. Word has length 165 [2018-12-08 18:14:49,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 18:14:49,777 INFO L480 AbstractCegarLoop]: Abstraction has 1094 states and 1321 transitions. [2018-12-08 18:14:49,777 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 18:14:49,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1321 transitions. [2018-12-08 18:14:49,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-12-08 18:14:49,780 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:14:49,780 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:14:49,781 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 18:14:49,781 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:14:49,781 INFO L82 PathProgramCache]: Analyzing trace with hash 267773236, now seen corresponding path program 1 times [2018-12-08 18:14:49,781 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 18:14:49,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:14:49,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:14:49,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:14:49,782 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 18:14:49,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:14:49,846 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 55 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-08 18:14:49,846 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 18:14:49,846 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 18:14:49,846 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 174 with the following transitions: [2018-12-08 18:14:49,846 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [97], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [597], [599], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-08 18:14:49,850 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 18:14:49,850 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 18:14:50,040 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 18:14:50,040 INFO L272 AbstractInterpreter]: Visited 124 different actions 242 times. Merged at 4 different actions 4 times. Never widened. Performed 3170 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3170 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-12-08 18:14:50,042 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:14:50,042 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 18:14:50,259 INFO L227 lantSequenceWeakener]: Weakened 170 states. On average, predicates are now at 81.86% of their original sizes. [2018-12-08 18:14:50,260 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 18:14:50,293 INFO L418 sIntCurrentIteration]: We unified 172 AI predicates to 172 [2018-12-08 18:14:50,293 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 18:14:50,293 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 18:14:50,293 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-12-08 18:14:50,293 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 18:14:50,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-08 18:14:50,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-08 18:14:50,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-08 18:14:50,294 INFO L87 Difference]: Start difference. First operand 1094 states and 1321 transitions. Second operand 10 states. [2018-12-08 18:14:52,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 18:14:52,089 INFO L93 Difference]: Finished difference Result 2186 states and 2669 transitions. [2018-12-08 18:14:52,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-08 18:14:52,089 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2018-12-08 18:14:52,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 18:14:52,091 INFO L225 Difference]: With dead ends: 2186 [2018-12-08 18:14:52,091 INFO L226 Difference]: Without dead ends: 1233 [2018-12-08 18:14:52,092 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 180 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-12-08 18:14:52,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1233 states. [2018-12-08 18:14:52,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1233 to 1231. [2018-12-08 18:14:52,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1231 states. [2018-12-08 18:14:52,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1231 states to 1231 states and 1468 transitions. [2018-12-08 18:14:52,108 INFO L78 Accepts]: Start accepts. Automaton has 1231 states and 1468 transitions. Word has length 173 [2018-12-08 18:14:52,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 18:14:52,108 INFO L480 AbstractCegarLoop]: Abstraction has 1231 states and 1468 transitions. [2018-12-08 18:14:52,108 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-08 18:14:52,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1231 states and 1468 transitions. [2018-12-08 18:14:52,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2018-12-08 18:14:52,111 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:14:52,111 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:14:52,111 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 18:14:52,111 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:14:52,111 INFO L82 PathProgramCache]: Analyzing trace with hash -208954254, now seen corresponding path program 1 times [2018-12-08 18:14:52,111 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 18:14:52,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:14:52,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:14:52,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:14:52,112 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 18:14:52,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:14:52,189 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 95 proven. 15 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-12-08 18:14:52,189 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 18:14:52,189 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 18:14:52,190 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 207 with the following transitions: [2018-12-08 18:14:52,190 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [97], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [597], [599], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-08 18:14:52,192 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 18:14:52,192 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 18:14:52,299 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 18:14:52,299 INFO L272 AbstractInterpreter]: Visited 124 different actions 242 times. Merged at 4 different actions 4 times. Never widened. Performed 3233 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3233 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-12-08 18:14:52,304 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:14:52,304 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 18:14:52,485 INFO L227 lantSequenceWeakener]: Weakened 203 states. On average, predicates are now at 81.82% of their original sizes. [2018-12-08 18:14:52,485 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 18:14:52,537 INFO L418 sIntCurrentIteration]: We unified 205 AI predicates to 205 [2018-12-08 18:14:52,537 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 18:14:52,537 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 18:14:52,537 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-12-08 18:14:52,537 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 18:14:52,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-08 18:14:52,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-08 18:14:52,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-08 18:14:52,538 INFO L87 Difference]: Start difference. First operand 1231 states and 1468 transitions. Second operand 10 states. [2018-12-08 18:14:54,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 18:14:54,100 INFO L93 Difference]: Finished difference Result 2460 states and 2957 transitions. [2018-12-08 18:14:54,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-08 18:14:54,100 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 206 [2018-12-08 18:14:54,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 18:14:54,105 INFO L225 Difference]: With dead ends: 2460 [2018-12-08 18:14:54,105 INFO L226 Difference]: Without dead ends: 1507 [2018-12-08 18:14:54,107 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 214 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-12-08 18:14:54,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2018-12-08 18:14:54,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 1505. [2018-12-08 18:14:54,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1505 states. [2018-12-08 18:14:54,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 1763 transitions. [2018-12-08 18:14:54,142 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 1763 transitions. Word has length 206 [2018-12-08 18:14:54,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 18:14:54,143 INFO L480 AbstractCegarLoop]: Abstraction has 1505 states and 1763 transitions. [2018-12-08 18:14:54,143 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-08 18:14:54,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 1763 transitions. [2018-12-08 18:14:54,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-12-08 18:14:54,147 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:14:54,148 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:14:54,148 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 18:14:54,148 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:14:54,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1391123469, now seen corresponding path program 1 times [2018-12-08 18:14:54,148 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 18:14:54,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:14:54,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:14:54,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:14:54,149 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 18:14:54,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:14:54,283 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 92 proven. 51 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-12-08 18:14:54,284 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 18:14:54,284 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 18:14:54,284 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 215 with the following transitions: [2018-12-08 18:14:54,284 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [97], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [597], [599], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-08 18:14:54,286 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 18:14:54,286 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 18:14:54,532 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 18:14:54,532 INFO L272 AbstractInterpreter]: Visited 126 different actions 504 times. Merged at 8 different actions 33 times. Widened at 1 different actions 1 times. Performed 7090 root evaluator evaluations with a maximum evaluation depth of 3. Performed 7090 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 8 fixpoints after 3 different actions. Largest state had 42 variables. [2018-12-08 18:14:54,535 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:14:54,536 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 18:14:54,536 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 18:14:54,536 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b97aea2e-289e-4e89-96da-cd69aab6831d/bin-2019/utaipan/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 [2018-12-08 18:14:54,542 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:14:54,542 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 18:14:54,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:14:54,604 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 18:14:54,658 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-12-08 18:14:54,659 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 18:14:54,736 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 97 proven. 44 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-12-08 18:14:54,752 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 18:14:54,752 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2018-12-08 18:14:54,752 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 18:14:54,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-08 18:14:54,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-08 18:14:54,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-12-08 18:14:54,753 INFO L87 Difference]: Start difference. First operand 1505 states and 1763 transitions. Second operand 11 states. [2018-12-08 18:14:55,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 18:14:55,507 INFO L93 Difference]: Finished difference Result 3169 states and 3791 transitions. [2018-12-08 18:14:55,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-08 18:14:55,507 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 214 [2018-12-08 18:14:55,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 18:14:55,511 INFO L225 Difference]: With dead ends: 3169 [2018-12-08 18:14:55,511 INFO L226 Difference]: Without dead ends: 2079 [2018-12-08 18:14:55,512 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 429 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2018-12-08 18:14:55,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2079 states. [2018-12-08 18:14:55,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2079 to 1801. [2018-12-08 18:14:55,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1801 states. [2018-12-08 18:14:55,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1801 states to 1801 states and 2078 transitions. [2018-12-08 18:14:55,533 INFO L78 Accepts]: Start accepts. Automaton has 1801 states and 2078 transitions. Word has length 214 [2018-12-08 18:14:55,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 18:14:55,533 INFO L480 AbstractCegarLoop]: Abstraction has 1801 states and 2078 transitions. [2018-12-08 18:14:55,533 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-08 18:14:55,533 INFO L276 IsEmpty]: Start isEmpty. Operand 1801 states and 2078 transitions. [2018-12-08 18:14:55,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-12-08 18:14:55,536 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:14:55,536 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:14:55,536 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 18:14:55,536 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:14:55,536 INFO L82 PathProgramCache]: Analyzing trace with hash -745426057, now seen corresponding path program 2 times [2018-12-08 18:14:55,537 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 18:14:55,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:14:55,537 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:14:55,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:14:55,537 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 18:14:55,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:14:55,614 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 92 proven. 53 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-12-08 18:14:55,614 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 18:14:55,614 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 18:14:55,615 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 18:14:55,615 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 18:14:55,615 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 18:14:55,615 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b97aea2e-289e-4e89-96da-cd69aab6831d/bin-2019/utaipan/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 [2018-12-08 18:14:55,621 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-08 18:14:55,621 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-08 18:14:55,655 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-12-08 18:14:55,655 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 18:14:55,659 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 18:14:55,693 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-12-08 18:14:55,694 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 18:14:55,731 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-12-08 18:14:55,746 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-08 18:14:55,747 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [9] total 10 [2018-12-08 18:14:55,747 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 18:14:55,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 18:14:55,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 18:14:55,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-12-08 18:14:55,747 INFO L87 Difference]: Start difference. First operand 1801 states and 2078 transitions. Second operand 3 states. [2018-12-08 18:14:55,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 18:14:55,973 INFO L93 Difference]: Finished difference Result 3596 states and 4302 transitions. [2018-12-08 18:14:55,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 18:14:55,973 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2018-12-08 18:14:55,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 18:14:55,979 INFO L225 Difference]: With dead ends: 3596 [2018-12-08 18:14:55,979 INFO L226 Difference]: Without dead ends: 2347 [2018-12-08 18:14:55,981 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 429 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-12-08 18:14:55,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2347 states. [2018-12-08 18:14:56,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2347 to 2347. [2018-12-08 18:14:56,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2347 states. [2018-12-08 18:14:56,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2347 states to 2347 states and 2747 transitions. [2018-12-08 18:14:56,015 INFO L78 Accepts]: Start accepts. Automaton has 2347 states and 2747 transitions. Word has length 214 [2018-12-08 18:14:56,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 18:14:56,016 INFO L480 AbstractCegarLoop]: Abstraction has 2347 states and 2747 transitions. [2018-12-08 18:14:56,016 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 18:14:56,016 INFO L276 IsEmpty]: Start isEmpty. Operand 2347 states and 2747 transitions. [2018-12-08 18:14:56,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2018-12-08 18:14:56,020 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:14:56,021 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:14:56,021 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 18:14:56,021 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:14:56,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1531847136, now seen corresponding path program 1 times [2018-12-08 18:14:56,021 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 18:14:56,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:14:56,021 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 18:14:56,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:14:56,022 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 18:14:56,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:14:56,101 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 103 proven. 48 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-08 18:14:56,101 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 18:14:56,101 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 18:14:56,102 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 227 with the following transitions: [2018-12-08 18:14:56,102 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [205], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [597], [599], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-08 18:14:56,104 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 18:14:56,104 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 18:14:56,321 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 18:14:56,321 INFO L272 AbstractInterpreter]: Visited 124 different actions 491 times. Merged at 7 different actions 25 times. Never widened. Performed 6738 root evaluator evaluations with a maximum evaluation depth of 3. Performed 6738 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 7 fixpoints after 2 different actions. Largest state had 42 variables. [2018-12-08 18:14:56,322 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:14:56,322 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 18:14:56,497 INFO L227 lantSequenceWeakener]: Weakened 223 states. On average, predicates are now at 83.54% of their original sizes. [2018-12-08 18:14:56,497 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 18:14:56,541 INFO L418 sIntCurrentIteration]: We unified 225 AI predicates to 225 [2018-12-08 18:14:56,541 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 18:14:56,541 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 18:14:56,541 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2018-12-08 18:14:56,541 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 18:14:56,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-08 18:14:56,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-08 18:14:56,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-08 18:14:56,542 INFO L87 Difference]: Start difference. First operand 2347 states and 2747 transitions. Second operand 9 states. [2018-12-08 18:14:58,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 18:14:58,168 INFO L93 Difference]: Finished difference Result 4997 states and 5948 transitions. [2018-12-08 18:14:58,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-08 18:14:58,168 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 226 [2018-12-08 18:14:58,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 18:14:58,173 INFO L225 Difference]: With dead ends: 4997 [2018-12-08 18:14:58,173 INFO L226 Difference]: Without dead ends: 3202 [2018-12-08 18:14:58,175 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 234 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2018-12-08 18:14:58,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3202 states. [2018-12-08 18:14:58,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3202 to 2907. [2018-12-08 18:14:58,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2907 states. [2018-12-08 18:14:58,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2907 states to 2907 states and 3348 transitions. [2018-12-08 18:14:58,208 INFO L78 Accepts]: Start accepts. Automaton has 2907 states and 3348 transitions. Word has length 226 [2018-12-08 18:14:58,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 18:14:58,209 INFO L480 AbstractCegarLoop]: Abstraction has 2907 states and 3348 transitions. [2018-12-08 18:14:58,209 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-08 18:14:58,209 INFO L276 IsEmpty]: Start isEmpty. Operand 2907 states and 3348 transitions. [2018-12-08 18:14:58,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2018-12-08 18:14:58,212 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:14:58,213 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:14:58,213 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 18:14:58,213 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:14:58,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1500835844, now seen corresponding path program 1 times [2018-12-08 18:14:58,213 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 18:14:58,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:14:58,213 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:14:58,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:14:58,214 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 18:14:58,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:14:58,297 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 140 proven. 83 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2018-12-08 18:14:58,297 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 18:14:58,297 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 18:14:58,297 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 262 with the following transitions: [2018-12-08 18:14:58,298 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [53], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [205], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [597], [599], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-08 18:14:58,299 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 18:14:58,299 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 18:14:58,587 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 18:14:58,587 INFO L272 AbstractInterpreter]: Visited 127 different actions 513 times. Merged at 9 different actions 38 times. Widened at 1 different actions 1 times. Performed 7147 root evaluator evaluations with a maximum evaluation depth of 3. Performed 7147 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 10 fixpoints after 3 different actions. Largest state had 42 variables. [2018-12-08 18:14:58,588 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:14:58,588 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 18:14:58,588 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 18:14:58,588 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b97aea2e-289e-4e89-96da-cd69aab6831d/bin-2019/utaipan/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 [2018-12-08 18:14:58,594 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:14:58,594 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 18:14:58,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:14:58,646 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 18:14:58,685 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 146 proven. 2 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2018-12-08 18:14:58,685 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 18:14:58,768 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 145 proven. 20 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-12-08 18:14:58,784 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 18:14:58,784 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2018-12-08 18:14:58,785 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 18:14:58,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-08 18:14:58,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-08 18:14:58,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2018-12-08 18:14:58,785 INFO L87 Difference]: Start difference. First operand 2907 states and 3348 transitions. Second operand 12 states. [2018-12-08 18:15:00,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 18:15:00,748 INFO L93 Difference]: Finished difference Result 10057 states and 12411 transitions. [2018-12-08 18:15:00,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-12-08 18:15:00,749 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 261 [2018-12-08 18:15:00,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 18:15:00,766 INFO L225 Difference]: With dead ends: 10057 [2018-12-08 18:15:00,766 INFO L226 Difference]: Without dead ends: 7428 [2018-12-08 18:15:00,771 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 597 GetRequests, 551 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 569 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=444, Invalid=1718, Unknown=0, NotChecked=0, Total=2162 [2018-12-08 18:15:00,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7428 states. [2018-12-08 18:15:00,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7428 to 5740. [2018-12-08 18:15:00,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5740 states. [2018-12-08 18:15:00,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5740 states to 5740 states and 6846 transitions. [2018-12-08 18:15:00,879 INFO L78 Accepts]: Start accepts. Automaton has 5740 states and 6846 transitions. Word has length 261 [2018-12-08 18:15:00,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 18:15:00,879 INFO L480 AbstractCegarLoop]: Abstraction has 5740 states and 6846 transitions. [2018-12-08 18:15:00,879 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-08 18:15:00,879 INFO L276 IsEmpty]: Start isEmpty. Operand 5740 states and 6846 transitions. [2018-12-08 18:15:00,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2018-12-08 18:15:00,890 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:15:00,890 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:15:00,890 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 18:15:00,891 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:15:00,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1701515942, now seen corresponding path program 1 times [2018-12-08 18:15:00,891 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 18:15:00,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:15:00,892 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:15:00,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:15:00,892 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 18:15:00,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:15:01,021 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 164 proven. 101 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-12-08 18:15:01,021 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 18:15:01,021 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 18:15:01,021 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 271 with the following transitions: [2018-12-08 18:15:01,022 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [53], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [173], [174], [178], [182], [186], [190], [194], [198], [202], [205], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [597], [599], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-08 18:15:01,023 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 18:15:01,023 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 18:15:01,316 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 18:15:01,316 INFO L272 AbstractInterpreter]: Visited 127 different actions 630 times. Merged at 9 different actions 39 times. Never widened. Performed 8733 root evaluator evaluations with a maximum evaluation depth of 3. Performed 8733 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 11 fixpoints after 2 different actions. Largest state had 42 variables. [2018-12-08 18:15:01,319 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:15:01,319 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 18:15:01,320 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 18:15:01,320 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b97aea2e-289e-4e89-96da-cd69aab6831d/bin-2019/utaipan/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 [2018-12-08 18:15:01,325 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:15:01,325 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 18:15:01,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:15:01,390 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 18:15:01,435 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 236 proven. 2 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2018-12-08 18:15:01,435 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 18:15:01,499 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 236 proven. 2 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2018-12-08 18:15:01,514 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 18:15:01,515 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-12-08 18:15:01,515 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 18:15:01,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-08 18:15:01,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-08 18:15:01,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-12-08 18:15:01,515 INFO L87 Difference]: Start difference. First operand 5740 states and 6846 transitions. Second operand 9 states. [2018-12-08 18:15:02,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 18:15:02,314 INFO L93 Difference]: Finished difference Result 12482 states and 16242 transitions. [2018-12-08 18:15:02,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-12-08 18:15:02,314 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 270 [2018-12-08 18:15:02,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 18:15:02,315 INFO L225 Difference]: With dead ends: 12482 [2018-12-08 18:15:02,315 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 18:15:02,333 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 569 GetRequests, 549 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2018-12-08 18:15:02,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 18:15:02,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 18:15:02,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 18:15:02,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 18:15:02,334 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 270 [2018-12-08 18:15:02,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 18:15:02,335 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 18:15:02,335 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-08 18:15:02,335 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 18:15:02,335 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 18:15:02,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-08 18:15:02,370 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,377 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,415 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,420 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,424 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,426 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,438 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,441 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,445 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,448 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,451 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,459 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,465 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,480 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,483 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,505 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,522 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,526 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,528 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,536 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,553 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,565 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,585 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,634 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,695 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,697 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,699 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,705 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,711 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,718 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,723 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,725 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,727 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,740 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,747 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,751 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,755 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,758 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,762 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,764 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,781 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,783 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,785 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,788 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,791 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,809 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,826 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,829 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,836 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,838 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,845 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,847 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,849 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,870 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,882 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,884 WARN L180 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 305 DAG size of output: 162 [2018-12-08 18:15:02,894 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,897 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,907 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,908 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,915 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,922 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,937 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,941 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,956 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,963 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,969 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:02,975 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:03,004 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:03,017 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:03,043 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:03,048 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:03,055 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:03,068 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:03,070 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:03,089 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:03,091 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:03,133 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:03,148 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:03,153 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:03,155 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:03,160 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:03,189 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:03,195 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:03,213 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:03,230 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:03,273 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:03,286 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:03,294 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:03,313 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 18:15:03,331 WARN L180 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 345 DAG size of output: 235 [2018-12-08 18:15:04,254 WARN L180 SmtUtils]: Spent 850.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 100 [2018-12-08 18:15:04,715 WARN L180 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 71 [2018-12-08 18:15:05,558 WARN L180 SmtUtils]: Spent 841.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 69 [2018-12-08 18:15:05,560 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-08 18:15:05,560 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a7~0 |old(~a7~0)|) (= |old(~a20~0)| ~a20~0) (= ~a17~0 |old(~a17~0)|) (= |old(~a16~0)| ~a16~0)) [2018-12-08 18:15:05,560 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-08 18:15:05,560 INFO L448 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2018-12-08 18:15:05,560 INFO L448 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2018-12-08 18:15:05,560 INFO L448 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,561 INFO L448 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,561 INFO L448 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,561 INFO L448 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,561 INFO L448 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,561 INFO L448 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,561 INFO L448 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2018-12-08 18:15:05,561 INFO L448 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2018-12-08 18:15:05,561 INFO L448 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2018-12-08 18:15:05,561 INFO L448 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2018-12-08 18:15:05,561 INFO L448 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2018-12-08 18:15:05,561 INFO L448 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2018-12-08 18:15:05,561 INFO L448 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2018-12-08 18:15:05,561 INFO L448 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2018-12-08 18:15:05,561 INFO L448 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2018-12-08 18:15:05,561 INFO L448 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2018-12-08 18:15:05,561 INFO L448 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,562 INFO L448 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,562 INFO L448 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,562 INFO L448 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,562 INFO L448 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,562 INFO L448 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,562 INFO L448 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2018-12-08 18:15:05,562 INFO L448 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2018-12-08 18:15:05,562 INFO L448 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2018-12-08 18:15:05,562 INFO L448 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2018-12-08 18:15:05,562 INFO L448 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2018-12-08 18:15:05,562 INFO L448 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2018-12-08 18:15:05,562 INFO L448 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2018-12-08 18:15:05,562 INFO L448 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2018-12-08 18:15:05,562 INFO L448 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2018-12-08 18:15:05,562 INFO L448 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2018-12-08 18:15:05,562 INFO L448 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2018-12-08 18:15:05,563 INFO L448 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2018-12-08 18:15:05,563 INFO L448 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2018-12-08 18:15:05,563 INFO L448 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2018-12-08 18:15:05,563 INFO L448 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2018-12-08 18:15:05,563 INFO L448 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,563 INFO L448 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,563 INFO L448 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,563 INFO L448 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,563 INFO L448 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,563 INFO L448 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2018-12-08 18:15:05,563 INFO L448 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2018-12-08 18:15:05,563 INFO L448 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2018-12-08 18:15:05,563 INFO L448 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2018-12-08 18:15:05,563 INFO L448 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2018-12-08 18:15:05,563 INFO L448 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2018-12-08 18:15:05,563 INFO L448 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2018-12-08 18:15:05,564 INFO L448 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2018-12-08 18:15:05,564 INFO L448 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2018-12-08 18:15:05,564 INFO L448 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,564 INFO L448 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,564 INFO L448 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,564 INFO L448 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,564 INFO L448 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,564 INFO L448 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2018-12-08 18:15:05,564 INFO L448 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2018-12-08 18:15:05,564 INFO L448 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2018-12-08 18:15:05,564 INFO L448 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2018-12-08 18:15:05,564 INFO L448 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2018-12-08 18:15:05,564 INFO L448 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2018-12-08 18:15:05,564 INFO L448 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2018-12-08 18:15:05,564 INFO L448 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2018-12-08 18:15:05,564 INFO L448 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2018-12-08 18:15:05,564 INFO L448 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2018-12-08 18:15:05,565 INFO L448 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2018-12-08 18:15:05,565 INFO L448 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2018-12-08 18:15:05,565 INFO L448 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2018-12-08 18:15:05,565 INFO L448 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,565 INFO L448 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,565 INFO L448 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,565 INFO L448 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,565 INFO L448 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,565 INFO L448 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2018-12-08 18:15:05,565 INFO L448 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2018-12-08 18:15:05,565 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2018-12-08 18:15:05,565 INFO L448 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2018-12-08 18:15:05,565 INFO L448 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2018-12-08 18:15:05,565 INFO L448 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2018-12-08 18:15:05,565 INFO L448 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2018-12-08 18:15:05,565 INFO L448 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2018-12-08 18:15:05,565 INFO L448 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2018-12-08 18:15:05,566 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,566 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,566 INFO L448 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,566 INFO L448 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,566 INFO L448 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,566 INFO L448 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,566 INFO L448 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2018-12-08 18:15:05,566 INFO L448 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,566 INFO L448 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2018-12-08 18:15:05,566 INFO L448 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2018-12-08 18:15:05,566 INFO L448 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2018-12-08 18:15:05,566 INFO L448 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2018-12-08 18:15:05,566 INFO L448 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2018-12-08 18:15:05,566 INFO L448 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2018-12-08 18:15:05,566 INFO L448 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2018-12-08 18:15:05,566 INFO L448 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2018-12-08 18:15:05,566 INFO L448 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2018-12-08 18:15:05,567 INFO L448 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2018-12-08 18:15:05,567 INFO L448 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2018-12-08 18:15:05,567 INFO L448 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2018-12-08 18:15:05,567 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2018-12-08 18:15:05,567 INFO L448 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,567 INFO L448 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,567 INFO L448 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,567 INFO L448 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,567 INFO L448 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,567 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2018-12-08 18:15:05,567 INFO L448 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2018-12-08 18:15:05,567 INFO L448 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2018-12-08 18:15:05,567 INFO L448 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2018-12-08 18:15:05,567 INFO L448 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2018-12-08 18:15:05,567 INFO L448 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2018-12-08 18:15:05,567 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2018-12-08 18:15:05,568 INFO L448 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2018-12-08 18:15:05,568 INFO L448 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,568 INFO L448 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,568 INFO L448 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,568 INFO L448 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,568 INFO L448 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,568 INFO L448 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2018-12-08 18:15:05,568 INFO L448 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2018-12-08 18:15:05,568 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2018-12-08 18:15:05,568 INFO L448 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2018-12-08 18:15:05,568 INFO L448 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2018-12-08 18:15:05,568 INFO L448 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2018-12-08 18:15:05,568 INFO L448 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2018-12-08 18:15:05,568 INFO L448 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2018-12-08 18:15:05,568 INFO L448 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2018-12-08 18:15:05,568 INFO L448 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2018-12-08 18:15:05,569 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse11 (= 1 |old(~a17~0)|)) (.cse17 (= 13 |old(~a8~0)|)) (.cse26 (= 1 |old(~a21~0)|)) (.cse35 (= 1 |old(~a7~0)|)) (.cse19 (not (= ~a8~0 0))) (.cse21 (= ~a21~0 1)) (.cse22 (= ~a7~0 |old(~a7~0)|)) (.cse29 (= 1 ~a7~0)) (.cse18 (= |old(~a20~0)| ~a20~0)) (.cse23 (= ~a17~0 |old(~a17~0)|)) (.cse20 (= |old(~a16~0)| ~a16~0)) (.cse16 (not (= ~a8~0 13)))) (let ((.cse15 (not (= 5 |old(~a16~0)|))) (.cse4 (< 0 |old(~a17~0)|)) (.cse24 (and .cse29 .cse18 .cse23 .cse20 .cse16)) (.cse10 (and .cse18 .cse19 .cse20 .cse21 .cse22 .cse23)) (.cse9 (= 0 |old(~a16~0)|)) (.cse12 (= 0 |old(~a8~0)|)) (.cse13 (< 0 |old(~a20~0)|)) (.cse5 (= |calculate_output_#in~input| 0)) (.cse6 (= ~a8~0 15)) (.cse0 (= 6 |old(~a16~0)|)) (.cse1 (not (= 0 |old(~a7~0)|))) (.cse8 (not (= 15 |old(~a8~0)|))) (.cse27 (and (not .cse21) .cse29 .cse18 .cse23 .cse20)) (.cse25 (not .cse35)) (.cse2 (not .cse26)) (.cse7 (not (= 1 |old(~a20~0)|))) (.cse28 (not (= 4 |old(~a16~0)|))) (.cse3 (not (= 8 ~a12~0))) (.cse30 (= 1 ~a20~0)) (.cse31 (= 13 ~a8~0)) (.cse32 (= 1 ~a21~0)) (.cse33 (= 1 ~a17~0)) (.cse34 (not .cse17)) (.cse14 (not .cse11))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (or .cse10 (or .cse0 .cse1 .cse2 .cse9 .cse3 .cse11 .cse5 .cse12 .cse13)) (or .cse1 .cse2 .cse6 .cse3 .cse5 .cse14 .cse7 .cse8 .cse15) (or .cse0 .cse1 .cse2 .cse7 .cse16 .cse17 .cse9 .cse3 .cse5 .cse12) (or .cse6 .cse5 (or .cse1 .cse2 .cse8 (not (= 0 |old(~a20~0)|)) .cse15 .cse3 .cse14)) (or .cse1 .cse2 .cse17 .cse9 .cse3 (and .cse18 .cse19 .cse20 .cse21 .cse16 .cse22 .cse23) .cse5 .cse12 .cse13) (or .cse0 .cse17 .cse24 .cse3 .cse25 .cse4 .cse13) (or (or .cse7 .cse17 .cse3) .cse25 .cse4 .cse24) (or .cse10 (or .cse1 .cse2 .cse7 .cse9 .cse3 .cse5 .cse12)) (or .cse0 .cse26 .cse3 .cse25 .cse13 .cse27) (or .cse2 .cse7 .cse28 (and .cse29 .cse30 .cse31 .cse20 .cse32 .cse33) .cse3 .cse25 .cse34 .cse14) (or .cse5 .cse6 (or (not .cse0) .cse1 .cse2 .cse7 .cse8 (not (= 0 |old(~a17~0)|)) .cse3)) (or .cse27 .cse26 (or .cse7 .cse3) .cse25) (or .cse2 .cse35 .cse7 .cse28 .cse3 (and (not (= ~a7~0 1)) .cse30 .cse31 .cse20 .cse32 .cse33) .cse34 .cse14)))) [2018-12-08 18:15:05,569 INFO L448 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2018-12-08 18:15:05,569 INFO L448 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,569 INFO L448 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,569 INFO L448 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,569 INFO L448 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,569 INFO L448 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2018-12-08 18:15:05,569 INFO L448 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,569 INFO L448 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,569 INFO L448 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2018-12-08 18:15:05,569 INFO L448 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2018-12-08 18:15:05,569 INFO L448 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2018-12-08 18:15:05,569 INFO L448 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2018-12-08 18:15:05,570 INFO L448 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2018-12-08 18:15:05,570 INFO L448 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2018-12-08 18:15:05,570 INFO L448 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2018-12-08 18:15:05,570 INFO L448 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2018-12-08 18:15:05,570 INFO L448 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2018-12-08 18:15:05,570 INFO L448 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2018-12-08 18:15:05,570 INFO L448 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2018-12-08 18:15:05,570 INFO L448 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2018-12-08 18:15:05,570 INFO L448 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,570 INFO L448 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,570 INFO L448 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,570 INFO L448 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,570 INFO L448 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,570 INFO L448 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2018-12-08 18:15:05,570 INFO L448 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,570 INFO L448 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2018-12-08 18:15:05,570 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2018-12-08 18:15:05,571 INFO L448 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2018-12-08 18:15:05,571 INFO L448 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2018-12-08 18:15:05,571 INFO L448 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2018-12-08 18:15:05,571 INFO L448 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2018-12-08 18:15:05,571 INFO L448 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2018-12-08 18:15:05,571 INFO L448 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2018-12-08 18:15:05,571 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2018-12-08 18:15:05,571 INFO L448 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2018-12-08 18:15:05,571 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2018-12-08 18:15:05,571 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 515) no Hoare annotation was computed. [2018-12-08 18:15:05,571 INFO L448 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2018-12-08 18:15:05,571 INFO L448 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2018-12-08 18:15:05,571 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2018-12-08 18:15:05,571 INFO L448 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,571 INFO L448 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,572 INFO L448 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,572 INFO L448 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,572 INFO L448 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,572 INFO L448 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 18:15:05,572 INFO L448 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2018-12-08 18:15:05,572 INFO L448 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2018-12-08 18:15:05,572 INFO L448 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2018-12-08 18:15:05,572 INFO L448 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2018-12-08 18:15:05,572 INFO L448 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2018-12-08 18:15:05,572 INFO L448 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2018-12-08 18:15:05,572 INFO L448 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2018-12-08 18:15:05,572 INFO L448 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2018-12-08 18:15:05,572 INFO L448 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2018-12-08 18:15:05,572 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2018-12-08 18:15:05,572 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-08 18:15:05,572 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a7~0 0) (= ~a8~0 15) (= ~a17~0 1) (= ~a12~0 8) (= ~a21~0 1) (= ~a20~0 1) (= ~a16~0 5)) [2018-12-08 18:15:05,573 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-08 18:15:05,573 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-08 18:15:05,573 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a21~0)|)) (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (and (= ~a8~0 15) (= ~a21~0 1) (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a20~0 1) (= ~a16~0 5)) (not (= 5 |old(~a16~0)|)) (not (= 8 ~a12~0)) (not (= 1 |old(~a17~0)|))) [2018-12-08 18:15:05,573 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2018-12-08 18:15:05,573 INFO L444 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (let ((.cse4 (= ~a21~0 1))) (let ((.cse0 (= ~a7~0 0)) (.cse9 (= 1 ~a20~0)) (.cse8 (not .cse4)) (.cse7 (= 1 ~a7~0)) (.cse11 (<= ~a17~0 0)) (.cse6 (not (= ~a8~0 13))) (.cse1 (not (= ~a16~0 0))) (.cse2 (not (= main_~input~0 0))) (.cse3 (not (= ~a8~0 0))) (.cse10 (not (= ~a16~0 6))) (.cse5 (<= ~a20~0 0))) (or (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0)) (not (= 1 |old(~a20~0)|)) (not (= 5 |old(~a16~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 (and .cse8 .cse9)) (and .cse0 .cse1 .cse2 .cse9 .cse3 .cse4) (and .cse9 (= 13 ~a8~0) (= 4 ~a16~0) (= 1 ~a21~0) (= 1 ~a17~0)) (and .cse8 .cse7 .cse10 .cse5) (and .cse7 (= |old(~a20~0)| ~a20~0) .cse11 .cse6) (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a17~0)|)) (not (= 15 |old(~a8~0)|)) (and .cse7 .cse10 .cse11 .cse6 .cse5) (and .cse1 .cse2 .cse3 .cse4 (not (= ~a17~0 1)) (= ~a7~0 |old(~a7~0)|) .cse10 .cse5)))) [2018-12-08 18:15:05,573 INFO L448 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2018-12-08 18:15:05,573 INFO L448 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2018-12-08 18:15:05,573 INFO L444 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse3 (= ~a21~0 1))) (let ((.cse6 (= 1 ~a20~0)) (.cse8 (not .cse3)) (.cse0 (= ~a7~0 0)) (.cse1 (not (= ~a16~0 0))) (.cse2 (not (= ~a8~0 0))) (.cse7 (= 1 ~a7~0)) (.cse10 (not (= ~a16~0 6))) (.cse9 (<= ~a17~0 0)) (.cse5 (not (= ~a8~0 13))) (.cse4 (<= ~a20~0 0))) (or (not (= 1 |old(~a20~0)|)) (not (= 5 |old(~a16~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 (= 13 ~a8~0) (= 4 ~a16~0) (= 1 ~a21~0) (= 1 ~a17~0)) (and .cse0 .cse1 .cse6 .cse2 .cse3) (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0)) (and .cse7 (and .cse8 .cse6)) (and .cse7 .cse6 .cse9 .cse5) (and .cse8 .cse7 .cse10 .cse4) (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a17~0)|)) (and .cse0 .cse1 (not (= main_~input~0 0)) .cse2 .cse10 .cse3 (not (= ~a17~0 1)) .cse4) (not (= 15 |old(~a8~0)|)) (and .cse7 .cse10 .cse9 .cse5 .cse4)))) [2018-12-08 18:15:05,573 INFO L448 ceAbstractionStarter]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2018-12-08 18:15:05,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 06:15:05 BoogieIcfgContainer [2018-12-08 18:15:05,581 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 18:15:05,581 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 18:15:05,581 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 18:15:05,582 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 18:15:05,582 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 06:14:44" (3/4) ... [2018-12-08 18:15:05,584 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 18:15:05,588 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 18:15:05,588 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-12-08 18:15:05,589 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 18:15:05,595 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-08 18:15:05,595 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-08 18:15:05,613 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((!(1 == \old(a20)) || !(5 == \old(a16))) || (((((a7 == 0 && !(a16 == 0)) && !(a8 == 0)) && a21 == 1) && a20 <= 0) && !(a8 == 13))) || ((((1 == a20 && 13 == a8) && 4 == a16) && 1 == a21) && 1 == a17)) || ((((a7 == 0 && !(a16 == 0)) && 1 == a20) && !(a8 == 0)) && a21 == 1)) || !(1 == \old(a21))) || !(8 == a12)) || (1 == a7 && !(a21 == 1) && 1 == a20)) || (((1 == a7 && 1 == a20) && a17 <= 0) && !(a8 == 13))) || (((!(a21 == 1) && 1 == a7) && !(a16 == 6)) && a20 <= 0)) || !(0 == \old(a7))) || !(1 == \old(a17))) || (((((((a7 == 0 && !(a16 == 0)) && !(input == 0)) && !(a8 == 0)) && !(a16 == 6)) && a21 == 1) && !(a17 == 1)) && a20 <= 0)) || !(15 == \old(a8))) || ((((1 == a7 && !(a16 == 6)) && a17 <= 0) && !(a8 == 13)) && a20 <= 0) [2018-12-08 18:15:05,661 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b97aea2e-289e-4e89-96da-cd69aab6831d/bin-2019/utaipan/witness.graphml [2018-12-08 18:15:05,661 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 18:15:05,661 INFO L168 Benchmark]: Toolchain (without parser) took 21999.99 ms. Allocated memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: 1.3 GB). Free memory was 945.9 MB in the beginning and 749.9 MB in the end (delta: 196.0 MB). Peak memory consumption was 1.5 GB. Max. memory is 11.5 GB. [2018-12-08 18:15:05,662 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 18:15:05,662 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.59 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -137.6 MB). Peak memory consumption was 40.8 MB. Max. memory is 11.5 GB. [2018-12-08 18:15:05,662 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 11.5 GB. [2018-12-08 18:15:05,662 INFO L168 Benchmark]: Boogie Preprocessor took 36.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-08 18:15:05,662 INFO L168 Benchmark]: RCFGBuilder took 577.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 976.4 MB in the end (delta: 98.0 MB). Peak memory consumption was 98.0 MB. Max. memory is 11.5 GB. [2018-12-08 18:15:05,663 INFO L168 Benchmark]: TraceAbstraction took 20992.22 ms. Allocated memory was 1.1 GB in the beginning and 2.4 GB in the end (delta: 1.2 GB). Free memory was 976.4 MB in the beginning and 779.3 MB in the end (delta: 197.1 MB). Peak memory consumption was 1.4 GB. Max. memory is 11.5 GB. [2018-12-08 18:15:05,663 INFO L168 Benchmark]: Witness Printer took 79.45 ms. Allocated memory is still 2.4 GB. Free memory was 779.3 MB in the beginning and 749.9 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 11.5 GB. [2018-12-08 18:15:05,664 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 292.59 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -137.6 MB). Peak memory consumption was 40.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 577.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 976.4 MB in the end (delta: 98.0 MB). Peak memory consumption was 98.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 20992.22 ms. Allocated memory was 1.1 GB in the beginning and 2.4 GB in the end (delta: 1.2 GB). Free memory was 976.4 MB in the beginning and 779.3 MB in the end (delta: 197.1 MB). Peak memory consumption was 1.4 GB. Max. memory is 11.5 GB. * Witness Printer took 79.45 ms. Allocated memory is still 2.4 GB. Free memory was 779.3 MB in the beginning and 749.9 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 515]: 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: 583]: Loop Invariant Derived loop invariant: (((((((((((((!(1 == \old(a20)) || !(5 == \old(a16))) || (((((a7 == 0 && !(a16 == 0)) && !(a8 == 0)) && a21 == 1) && a20 <= 0) && !(a8 == 13))) || ((((1 == a20 && 13 == a8) && 4 == a16) && 1 == a21) && 1 == a17)) || ((((a7 == 0 && !(a16 == 0)) && 1 == a20) && !(a8 == 0)) && a21 == 1)) || !(1 == \old(a21))) || !(8 == a12)) || (1 == a7 && !(a21 == 1) && 1 == a20)) || (((1 == a7 && 1 == a20) && a17 <= 0) && !(a8 == 13))) || (((!(a21 == 1) && 1 == a7) && !(a16 == 6)) && a20 <= 0)) || !(0 == \old(a7))) || !(1 == \old(a17))) || (((((((a7 == 0 && !(a16 == 0)) && !(input == 0)) && !(a8 == 0)) && !(a16 == 6)) && a21 == 1) && !(a17 == 1)) && a20 <= 0)) || !(15 == \old(a8))) || ((((1 == a7 && !(a16 == 6)) && a17 <= 0) && !(a8 == 13)) && a20 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. SAFE Result, 20.9s OverallTime, 13 OverallIterations, 6 TraceHistogramMax, 12.3s AutomataDifference, 0.0s DeadEndRemovalTime, 3.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 709 SDtfs, 9443 SDslu, 725 SDs, 0 SdLazy, 10527 SolverSat, 1939 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.5s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 2879 GetRequests, 2709 SyntacticMatches, 12 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 804 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5740occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.6s AbstIntTime, 7 AbstIntIterations, 4 AbstIntStrong, 0.9973676001400763 AbsIntWeakeningRatio, 0.206266318537859 AbsIntAvgWeakeningVarsNumRemoved, 29.283289817232376 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 2280 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 339 PreInvPairs, 692 NumberOfFragments, 1018 HoareAnnotationTreeSize, 339 FomulaSimplifications, 41014 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 19607 FormulaSimplificationTreeSizeReductionInter, 2.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 3331 NumberOfCodeBlocks, 3267 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 4269 ConstructedInterpolants, 0 QuantifiedInterpolants, 2395055 SizeOfPredicates, 3 NumberOfNonLiveVariables, 2394 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 21 InterpolantComputations, 7 PerfectInterpolantSequences, 2793/3233 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...