./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label14_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_e44e631c-01c0-418b-b63c-9cbd2a809c44/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e44e631c-01c0-418b-b63c-9cbd2a809c44/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e44e631c-01c0-418b-b63c-9cbd2a809c44/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e44e631c-01c0-418b-b63c-9cbd2a809c44/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label14_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e44e631c-01c0-418b-b63c-9cbd2a809c44/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e44e631c-01c0-418b-b63c-9cbd2a809c44/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 d50ba566f02e5109971f6a90ba216a95432a7661 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 13:03:16,770 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 13:03:16,771 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 13:03:16,779 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 13:03:16,779 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 13:03:16,780 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 13:03:16,780 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 13:03:16,781 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 13:03:16,782 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 13:03:16,782 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 13:03:16,783 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 13:03:16,783 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 13:03:16,784 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 13:03:16,784 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 13:03:16,785 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 13:03:16,785 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 13:03:16,786 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 13:03:16,787 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 13:03:16,788 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 13:03:16,789 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 13:03:16,790 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 13:03:16,791 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 13:03:16,793 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 13:03:16,793 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 13:03:16,793 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 13:03:16,794 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 13:03:16,794 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 13:03:16,795 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 13:03:16,796 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 13:03:16,796 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 13:03:16,796 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 13:03:16,797 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 13:03:16,797 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 13:03:16,797 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 13:03:16,797 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 13:03:16,798 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 13:03:16,798 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e44e631c-01c0-418b-b63c-9cbd2a809c44/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 13:03:16,807 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 13:03:16,807 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 13:03:16,808 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 13:03:16,808 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 13:03:16,808 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 13:03:16,808 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 13:03:16,808 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 13:03:16,808 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 13:03:16,809 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 13:03:16,809 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 13:03:16,809 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 13:03:16,809 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 13:03:16,809 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 13:03:16,810 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 13:03:16,810 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 13:03:16,810 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 13:03:16,810 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 13:03:16,810 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 13:03:16,811 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 13:03:16,811 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 13:03:16,811 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 13:03:16,811 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 13:03:16,811 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 13:03:16,811 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 13:03:16,811 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 13:03:16,812 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 13:03:16,812 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 13:03:16,812 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 13:03:16,812 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 13:03:16,812 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 13:03:16,812 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 13:03:16,812 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 13:03:16,813 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 13:03:16,813 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 13:03:16,813 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 13:03:16,813 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 13:03:16,813 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_e44e631c-01c0-418b-b63c-9cbd2a809c44/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 -> d50ba566f02e5109971f6a90ba216a95432a7661 [2018-12-02 13:03:16,836 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 13:03:16,843 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 13:03:16,845 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 13:03:16,846 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 13:03:16,846 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 13:03:16,846 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e44e631c-01c0-418b-b63c-9cbd2a809c44/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem01_label14_true-unreach-call_false-termination.c [2018-12-02 13:03:16,879 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e44e631c-01c0-418b-b63c-9cbd2a809c44/bin-2019/utaipan/data/7c7757177/4a790af7fe4f4c22a75a5931f5d4d5ee/FLAG03ddbc606 [2018-12-02 13:03:17,290 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 13:03:17,290 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e44e631c-01c0-418b-b63c-9cbd2a809c44/sv-benchmarks/c/eca-rers2012/Problem01_label14_true-unreach-call_false-termination.c [2018-12-02 13:03:17,296 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e44e631c-01c0-418b-b63c-9cbd2a809c44/bin-2019/utaipan/data/7c7757177/4a790af7fe4f4c22a75a5931f5d4d5ee/FLAG03ddbc606 [2018-12-02 13:03:17,305 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e44e631c-01c0-418b-b63c-9cbd2a809c44/bin-2019/utaipan/data/7c7757177/4a790af7fe4f4c22a75a5931f5d4d5ee [2018-12-02 13:03:17,307 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 13:03:17,308 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 13:03:17,309 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 13:03:17,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 13:03:17,311 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 13:03:17,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:03:17" (1/1) ... [2018-12-02 13:03:17,313 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a1782ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:03:17, skipping insertion in model container [2018-12-02 13:03:17,313 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:03:17" (1/1) ... [2018-12-02 13:03:17,318 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 13:03:17,341 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 13:03:17,509 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 13:03:17,512 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 13:03:17,591 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 13:03:17,600 INFO L195 MainTranslator]: Completed translation [2018-12-02 13:03:17,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:03:17 WrapperNode [2018-12-02 13:03:17,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 13:03:17,601 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 13:03:17,601 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 13:03:17,601 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 13:03:17,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:03:17" (1/1) ... [2018-12-02 13:03:17,616 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:03:17" (1/1) ... [2018-12-02 13:03:17,620 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 13:03:17,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 13:03:17,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 13:03:17,621 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 13:03:17,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:03:17" (1/1) ... [2018-12-02 13:03:17,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:03:17" (1/1) ... [2018-12-02 13:03:17,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:03:17" (1/1) ... [2018-12-02 13:03:17,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:03:17" (1/1) ... [2018-12-02 13:03:17,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:03:17" (1/1) ... [2018-12-02 13:03:17,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:03:17" (1/1) ... [2018-12-02 13:03:17,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:03:17" (1/1) ... [2018-12-02 13:03:17,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 13:03:17,658 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 13:03:17,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 13:03:17,658 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 13:03:17,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:03:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e44e631c-01c0-418b-b63c-9cbd2a809c44/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 [2018-12-02 13:03:17,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 13:03:17,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 13:03:17,692 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-12-02 13:03:17,692 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-12-02 13:03:17,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 13:03:17,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 13:03:17,693 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 13:03:17,693 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 13:03:18,280 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 13:03:18,280 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-02 13:03:18,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:03:18 BoogieIcfgContainer [2018-12-02 13:03:18,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 13:03:18,282 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 13:03:18,282 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 13:03:18,284 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 13:03:18,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:03:17" (1/3) ... [2018-12-02 13:03:18,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e32af30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:03:18, skipping insertion in model container [2018-12-02 13:03:18,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:03:17" (2/3) ... [2018-12-02 13:03:18,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e32af30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:03:18, skipping insertion in model container [2018-12-02 13:03:18,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:03:18" (3/3) ... [2018-12-02 13:03:18,287 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label14_true-unreach-call_false-termination.c [2018-12-02 13:03:18,295 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 13:03:18,301 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 13:03:18,312 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 13:03:18,336 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 13:03:18,336 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 13:03:18,336 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 13:03:18,336 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 13:03:18,336 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 13:03:18,336 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 13:03:18,336 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 13:03:18,336 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 13:03:18,353 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2018-12-02 13:03:18,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-12-02 13:03:18,362 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 13:03:18,363 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 13:03:18,365 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 13:03:18,368 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:03:18,369 INFO L82 PathProgramCache]: Analyzing trace with hash -2085422569, now seen corresponding path program 1 times [2018-12-02 13:03:18,370 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 13:03:18,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:03:18,400 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:03:18,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:03:18,400 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 13:03:18,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:03:18,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:03:18,680 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 13:03:18,681 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 13:03:18,681 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 13:03:18,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 13:03:18,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 13:03:18,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 13:03:18,694 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2018-12-02 13:03:19,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 13:03:19,108 INFO L93 Difference]: Finished difference Result 547 states and 938 transitions. [2018-12-02 13:03:19,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 13:03:19,109 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2018-12-02 13:03:19,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 13:03:19,117 INFO L225 Difference]: With dead ends: 547 [2018-12-02 13:03:19,118 INFO L226 Difference]: Without dead ends: 278 [2018-12-02 13:03:19,121 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 [2018-12-02 13:03:19,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2018-12-02 13:03:19,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2018-12-02 13:03:19,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2018-12-02 13:03:19,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 394 transitions. [2018-12-02 13:03:19,156 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 394 transitions. Word has length 137 [2018-12-02 13:03:19,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 13:03:19,157 INFO L480 AbstractCegarLoop]: Abstraction has 278 states and 394 transitions. [2018-12-02 13:03:19,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 13:03:19,157 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 394 transitions. [2018-12-02 13:03:19,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-12-02 13:03:19,160 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 13:03:19,161 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 13:03:19,161 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 13:03:19,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:03:19,161 INFO L82 PathProgramCache]: Analyzing trace with hash -168887712, now seen corresponding path program 1 times [2018-12-02 13:03:19,162 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 13:03:19,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:03:19,162 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:03:19,163 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:03:19,163 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 13:03:19,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:03:19,243 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:03:19,243 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 13:03:19,243 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 13:03:19,243 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 13:03:19,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 13:03:19,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 13:03:19,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-02 13:03:19,244 INFO L87 Difference]: Start difference. First operand 278 states and 394 transitions. Second operand 6 states. [2018-12-02 13:03:19,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 13:03:19,614 INFO L93 Difference]: Finished difference Result 840 states and 1222 transitions. [2018-12-02 13:03:19,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 13:03:19,614 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 147 [2018-12-02 13:03:19,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 13:03:19,619 INFO L225 Difference]: With dead ends: 840 [2018-12-02 13:03:19,619 INFO L226 Difference]: Without dead ends: 568 [2018-12-02 13:03:19,620 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 [2018-12-02 13:03:19,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2018-12-02 13:03:19,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 556. [2018-12-02 13:03:19,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2018-12-02 13:03:19,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 785 transitions. [2018-12-02 13:03:19,646 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 785 transitions. Word has length 147 [2018-12-02 13:03:19,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 13:03:19,646 INFO L480 AbstractCegarLoop]: Abstraction has 556 states and 785 transitions. [2018-12-02 13:03:19,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 13:03:19,646 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 785 transitions. [2018-12-02 13:03:19,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-12-02 13:03:19,649 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 13:03:19,649 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 13:03:19,649 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 13:03:19,649 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:03:19,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1733990238, now seen corresponding path program 1 times [2018-12-02 13:03:19,650 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 13:03:19,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:03:19,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:03:19,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:03:19,651 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 13:03:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:03:19,831 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:03:19,831 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 13:03:19,831 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 13:03:19,831 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 13:03:19,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 13:03:19,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 13:03:19,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-02 13:03:19,832 INFO L87 Difference]: Start difference. First operand 556 states and 785 transitions. Second operand 5 states. [2018-12-02 13:03:20,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 13:03:20,134 INFO L93 Difference]: Finished difference Result 1205 states and 1730 transitions. [2018-12-02 13:03:20,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 13:03:20,134 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2018-12-02 13:03:20,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 13:03:20,136 INFO L225 Difference]: With dead ends: 1205 [2018-12-02 13:03:20,136 INFO L226 Difference]: Without dead ends: 554 [2018-12-02 13:03:20,137 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 [2018-12-02 13:03:20,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2018-12-02 13:03:20,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2018-12-02 13:03:20,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2018-12-02 13:03:20,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 712 transitions. [2018-12-02 13:03:20,147 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 712 transitions. Word has length 148 [2018-12-02 13:03:20,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 13:03:20,148 INFO L480 AbstractCegarLoop]: Abstraction has 554 states and 712 transitions. [2018-12-02 13:03:20,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 13:03:20,148 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 712 transitions. [2018-12-02 13:03:20,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-12-02 13:03:20,149 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 13:03:20,149 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 13:03:20,149 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 13:03:20,149 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:03:20,150 INFO L82 PathProgramCache]: Analyzing trace with hash 1831387878, now seen corresponding path program 1 times [2018-12-02 13:03:20,150 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 13:03:20,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:03:20,150 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:03:20,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:03:20,150 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 13:03:20,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:03:20,215 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:03:20,215 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 13:03:20,216 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 13:03:20,216 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 13:03:20,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 13:03:20,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 13:03:20,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 13:03:20,217 INFO L87 Difference]: Start difference. First operand 554 states and 712 transitions. Second operand 3 states. [2018-12-02 13:03:20,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 13:03:20,427 INFO L93 Difference]: Finished difference Result 1509 states and 1959 transitions. [2018-12-02 13:03:20,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 13:03:20,428 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 152 [2018-12-02 13:03:20,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 13:03:20,431 INFO L225 Difference]: With dead ends: 1509 [2018-12-02 13:03:20,431 INFO L226 Difference]: Without dead ends: 961 [2018-12-02 13:03:20,432 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 [2018-12-02 13:03:20,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2018-12-02 13:03:20,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 961. [2018-12-02 13:03:20,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 961 states. [2018-12-02 13:03:20,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1216 transitions. [2018-12-02 13:03:20,452 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1216 transitions. Word has length 152 [2018-12-02 13:03:20,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 13:03:20,452 INFO L480 AbstractCegarLoop]: Abstraction has 961 states and 1216 transitions. [2018-12-02 13:03:20,452 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 13:03:20,453 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1216 transitions. [2018-12-02 13:03:20,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-12-02 13:03:20,455 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 13:03:20,455 INFO L402 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 13:03:20,455 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 13:03:20,455 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:03:20,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1301808515, now seen corresponding path program 1 times [2018-12-02 13:03:20,455 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 13:03:20,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:03:20,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:03:20,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:03:20,456 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 13:03:20,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:03:20,724 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 32 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:03:20,724 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 13:03:20,724 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 13:03:20,725 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 173 with the following transitions: [2018-12-02 13:03:20,726 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [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], [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], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [689], [697], [705], [713], [721], [729], [737], [741], [743], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-02 13:03:20,755 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 13:03:20,756 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 13:03:21,032 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 13:03:21,033 INFO L272 AbstractInterpreter]: Visited 138 different actions 138 times. Never merged. Never widened. Performed 1764 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1764 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 42 variables. [2018-12-02 13:03:21,037 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:03:21,037 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 13:03:21,257 INFO L227 lantSequenceWeakener]: Weakened 163 states. On average, predicates are now at 80.69% of their original sizes. [2018-12-02 13:03:21,257 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 13:03:21,277 INFO L418 sIntCurrentIteration]: We unified 171 AI predicates to 171 [2018-12-02 13:03:21,277 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 13:03:21,278 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 13:03:21,278 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2018-12-02 13:03:21,278 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 13:03:21,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 13:03:21,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 13:03:21,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-02 13:03:21,279 INFO L87 Difference]: Start difference. First operand 961 states and 1216 transitions. Second operand 6 states. [2018-12-02 13:03:22,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 13:03:22,660 INFO L93 Difference]: Finished difference Result 2052 states and 2587 transitions. [2018-12-02 13:03:22,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 13:03:22,660 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2018-12-02 13:03:22,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 13:03:22,663 INFO L225 Difference]: With dead ends: 2052 [2018-12-02 13:03:22,664 INFO L226 Difference]: Without dead ends: 1097 [2018-12-02 13:03:22,665 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 172 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-02 13:03:22,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2018-12-02 13:03:22,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 1096. [2018-12-02 13:03:22,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1096 states. [2018-12-02 13:03:22,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1357 transitions. [2018-12-02 13:03:22,691 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1357 transitions. Word has length 172 [2018-12-02 13:03:22,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 13:03:22,691 INFO L480 AbstractCegarLoop]: Abstraction has 1096 states and 1357 transitions. [2018-12-02 13:03:22,691 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 13:03:22,691 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1357 transitions. [2018-12-02 13:03:22,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-12-02 13:03:22,694 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 13:03:22,695 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 13:03:22,695 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 13:03:22,695 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:03:22,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1685021730, now seen corresponding path program 1 times [2018-12-02 13:03:22,695 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 13:03:22,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:03:22,696 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:03:22,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:03:22,696 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 13:03:22,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:03:22,810 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 44 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-02 13:03:22,810 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 13:03:22,810 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 13:03:22,810 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 181 with the following transitions: [2018-12-02 13:03:22,811 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], [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], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [689], [697], [705], [713], [721], [729], [737], [741], [743], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-02 13:03:22,815 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 13:03:22,815 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 13:03:23,016 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 13:03:23,017 INFO L272 AbstractInterpreter]: Visited 142 different actions 278 times. Merged at 4 different actions 4 times. Never widened. Performed 3533 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3533 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-12-02 13:03:23,018 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:03:23,018 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 13:03:23,200 INFO L227 lantSequenceWeakener]: Weakened 177 states. On average, predicates are now at 82.12% of their original sizes. [2018-12-02 13:03:23,200 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 13:03:23,248 INFO L418 sIntCurrentIteration]: We unified 179 AI predicates to 179 [2018-12-02 13:03:23,248 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 13:03:23,248 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 13:03:23,248 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-12-02 13:03:23,249 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 13:03:23,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-02 13:03:23,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 13:03:23,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-02 13:03:23,249 INFO L87 Difference]: Start difference. First operand 1096 states and 1357 transitions. Second operand 10 states. [2018-12-02 13:03:25,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 13:03:25,766 INFO L93 Difference]: Finished difference Result 2190 states and 2730 transitions. [2018-12-02 13:03:25,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-02 13:03:25,766 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 180 [2018-12-02 13:03:25,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 13:03:25,769 INFO L225 Difference]: With dead ends: 2190 [2018-12-02 13:03:25,769 INFO L226 Difference]: Without dead ends: 1235 [2018-12-02 13:03:25,770 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 187 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-12-02 13:03:25,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1235 states. [2018-12-02 13:03:25,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1235 to 1233. [2018-12-02 13:03:25,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1233 states. [2018-12-02 13:03:25,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1233 states to 1233 states and 1503 transitions. [2018-12-02 13:03:25,791 INFO L78 Accepts]: Start accepts. Automaton has 1233 states and 1503 transitions. Word has length 180 [2018-12-02 13:03:25,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 13:03:25,791 INFO L480 AbstractCegarLoop]: Abstraction has 1233 states and 1503 transitions. [2018-12-02 13:03:25,791 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-02 13:03:25,792 INFO L276 IsEmpty]: Start isEmpty. Operand 1233 states and 1503 transitions. [2018-12-02 13:03:25,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2018-12-02 13:03:25,794 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 13:03:25,794 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-12-02 13:03:25,794 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 13:03:25,794 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:03:25,794 INFO L82 PathProgramCache]: Analyzing trace with hash -1778916640, now seen corresponding path program 1 times [2018-12-02 13:03:25,794 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 13:03:25,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:03:25,795 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:03:25,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:03:25,795 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 13:03:25,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:03:25,886 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 84 proven. 15 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-02 13:03:25,886 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 13:03:25,886 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 13:03:25,886 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 214 with the following transitions: [2018-12-02 13:03:25,887 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [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], [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], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [689], [697], [705], [713], [721], [729], [737], [741], [743], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-02 13:03:25,891 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 13:03:25,891 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 13:03:26,021 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 13:03:26,021 INFO L272 AbstractInterpreter]: Visited 142 different actions 278 times. Merged at 4 different actions 4 times. Never widened. Performed 3605 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3605 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-12-02 13:03:26,031 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:03:26,031 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 13:03:26,279 INFO L227 lantSequenceWeakener]: Weakened 210 states. On average, predicates are now at 82.03% of their original sizes. [2018-12-02 13:03:26,279 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 13:03:26,319 INFO L418 sIntCurrentIteration]: We unified 212 AI predicates to 212 [2018-12-02 13:03:26,319 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 13:03:26,319 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 13:03:26,319 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-12-02 13:03:26,319 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 13:03:26,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-02 13:03:26,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 13:03:26,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-02 13:03:26,320 INFO L87 Difference]: Start difference. First operand 1233 states and 1503 transitions. Second operand 10 states. [2018-12-02 13:03:28,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 13:03:28,298 INFO L93 Difference]: Finished difference Result 2464 states and 3064 transitions. [2018-12-02 13:03:28,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-02 13:03:28,299 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 213 [2018-12-02 13:03:28,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 13:03:28,303 INFO L225 Difference]: With dead ends: 2464 [2018-12-02 13:03:28,303 INFO L226 Difference]: Without dead ends: 1509 [2018-12-02 13:03:28,305 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 221 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-12-02 13:03:28,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2018-12-02 13:03:28,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1507. [2018-12-02 13:03:28,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1507 states. [2018-12-02 13:03:28,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 1800 transitions. [2018-12-02 13:03:28,330 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 1800 transitions. Word has length 213 [2018-12-02 13:03:28,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 13:03:28,330 INFO L480 AbstractCegarLoop]: Abstraction has 1507 states and 1800 transitions. [2018-12-02 13:03:28,330 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-02 13:03:28,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 1800 transitions. [2018-12-02 13:03:28,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-12-02 13:03:28,333 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 13:03:28,333 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 13:03:28,334 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 13:03:28,334 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:03:28,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1293545189, now seen corresponding path program 1 times [2018-12-02 13:03:28,334 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 13:03:28,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:03:28,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:03:28,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:03:28,335 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 13:03:28,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:03:28,440 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 81 proven. 40 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-12-02 13:03:28,440 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 13:03:28,440 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 13:03:28,441 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 222 with the following transitions: [2018-12-02 13:03:28,441 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], [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], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [689], [697], [705], [713], [721], [729], [737], [741], [743], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-02 13:03:28,444 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 13:03:28,444 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 13:03:28,752 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 13:03:28,752 INFO L272 AbstractInterpreter]: Visited 144 different actions 575 times. Merged at 8 different actions 32 times. Widened at 1 different actions 1 times. Performed 7862 root evaluator evaluations with a maximum evaluation depth of 3. Performed 7862 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 8 fixpoints after 3 different actions. Largest state had 42 variables. [2018-12-02 13:03:28,755 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:03:28,756 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 13:03:28,756 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 13:03:28,756 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e44e631c-01c0-418b-b63c-9cbd2a809c44/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 [2018-12-02 13:03:28,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:03:28,763 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 13:03:28,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:03:28,835 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 13:03:28,893 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 98 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-12-02 13:03:28,893 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 13:03:28,965 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 86 proven. 33 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-12-02 13:03:28,982 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 13:03:28,982 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2018-12-02 13:03:28,982 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 13:03:28,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-02 13:03:28,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-02 13:03:28,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-12-02 13:03:28,983 INFO L87 Difference]: Start difference. First operand 1507 states and 1800 transitions. Second operand 11 states. [2018-12-02 13:03:29,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 13:03:29,942 INFO L93 Difference]: Finished difference Result 4684 states and 5951 transitions. [2018-12-02 13:03:29,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-02 13:03:29,942 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 221 [2018-12-02 13:03:29,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 13:03:29,949 INFO L225 Difference]: With dead ends: 4684 [2018-12-02 13:03:29,949 INFO L226 Difference]: Without dead ends: 3592 [2018-12-02 13:03:29,952 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 445 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2018-12-02 13:03:29,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3592 states. [2018-12-02 13:03:29,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3592 to 3588. [2018-12-02 13:03:29,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3588 states. [2018-12-02 13:03:29,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3588 states to 3588 states and 4398 transitions. [2018-12-02 13:03:29,997 INFO L78 Accepts]: Start accepts. Automaton has 3588 states and 4398 transitions. Word has length 221 [2018-12-02 13:03:29,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 13:03:29,997 INFO L480 AbstractCegarLoop]: Abstraction has 3588 states and 4398 transitions. [2018-12-02 13:03:29,997 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-02 13:03:29,997 INFO L276 IsEmpty]: Start isEmpty. Operand 3588 states and 4398 transitions. [2018-12-02 13:03:30,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-12-02 13:03:30,002 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 13:03:30,002 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, 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] [2018-12-02 13:03:30,002 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 13:03:30,003 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:03:30,003 INFO L82 PathProgramCache]: Analyzing trace with hash -182889000, now seen corresponding path program 1 times [2018-12-02 13:03:30,003 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 13:03:30,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:03:30,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:03:30,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:03:30,004 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 13:03:30,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:03:30,073 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 79 proven. 41 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-02 13:03:30,073 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 13:03:30,073 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 13:03:30,074 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 221 with the following transitions: [2018-12-02 13:03:30,074 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], [109], [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], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [689], [697], [705], [713], [721], [729], [737], [741], [743], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-02 13:03:30,076 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 13:03:30,076 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 13:03:30,390 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 13:03:30,390 INFO L272 AbstractInterpreter]: Visited 143 different actions 568 times. Merged at 7 different actions 29 times. Never widened. Performed 7699 root evaluator evaluations with a maximum evaluation depth of 3. Performed 7699 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 7 fixpoints after 3 different actions. Largest state had 42 variables. [2018-12-02 13:03:30,392 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:03:30,392 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 13:03:30,392 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 13:03:30,392 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e44e631c-01c0-418b-b63c-9cbd2a809c44/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 [2018-12-02 13:03:30,398 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:03:30,398 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 13:03:30,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:03:30,444 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 13:03:30,485 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 90 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-12-02 13:03:30,485 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 13:03:30,523 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 84 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-12-02 13:03:30,538 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 13:03:30,539 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2018-12-02 13:03:30,539 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 13:03:30,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-02 13:03:30,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-02 13:03:30,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2018-12-02 13:03:30,539 INFO L87 Difference]: Start difference. First operand 3588 states and 4398 transitions. Second operand 12 states. [2018-12-02 13:03:32,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 13:03:32,480 INFO L93 Difference]: Finished difference Result 9231 states and 12121 transitions. [2018-12-02 13:03:32,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-12-02 13:03:32,481 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 220 [2018-12-02 13:03:32,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 13:03:32,493 INFO L225 Difference]: With dead ends: 9231 [2018-12-02 13:03:32,493 INFO L226 Difference]: Without dead ends: 5921 [2018-12-02 13:03:32,496 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 465 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 434 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=411, Invalid=1395, Unknown=0, NotChecked=0, Total=1806 [2018-12-02 13:03:32,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5921 states. [2018-12-02 13:03:32,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5921 to 4916. [2018-12-02 13:03:32,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4916 states. [2018-12-02 13:03:32,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4916 states to 4916 states and 6171 transitions. [2018-12-02 13:03:32,567 INFO L78 Accepts]: Start accepts. Automaton has 4916 states and 6171 transitions. Word has length 220 [2018-12-02 13:03:32,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 13:03:32,567 INFO L480 AbstractCegarLoop]: Abstraction has 4916 states and 6171 transitions. [2018-12-02 13:03:32,567 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-02 13:03:32,567 INFO L276 IsEmpty]: Start isEmpty. Operand 4916 states and 6171 transitions. [2018-12-02 13:03:32,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2018-12-02 13:03:32,576 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 13:03:32,576 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, 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] [2018-12-02 13:03:32,576 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 13:03:32,576 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:03:32,576 INFO L82 PathProgramCache]: Analyzing trace with hash -514087954, now seen corresponding path program 1 times [2018-12-02 13:03:32,576 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 13:03:32,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:03:32,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:03:32,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:03:32,577 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 13:03:32,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:03:32,669 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 95 proven. 32 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-02 13:03:32,670 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 13:03:32,670 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 13:03:32,670 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 230 with the following transitions: [2018-12-02 13:03:32,670 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], [109], [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], [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], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [689], [697], [705], [713], [721], [729], [737], [741], [743], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-02 13:03:32,672 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 13:03:32,672 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 13:03:32,846 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 13:03:32,846 INFO L272 AbstractInterpreter]: Visited 142 different actions 418 times. Merged at 6 different actions 12 times. Never widened. Performed 5418 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5418 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 2 different actions. Largest state had 42 variables. [2018-12-02 13:03:32,847 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:03:32,847 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 13:03:33,000 INFO L227 lantSequenceWeakener]: Weakened 226 states. On average, predicates are now at 83.62% of their original sizes. [2018-12-02 13:03:33,000 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 13:03:33,050 INFO L418 sIntCurrentIteration]: We unified 228 AI predicates to 228 [2018-12-02 13:03:33,050 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 13:03:33,051 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 13:03:33,051 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2018-12-02 13:03:33,051 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 13:03:33,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 13:03:33,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 13:03:33,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-02 13:03:33,052 INFO L87 Difference]: Start difference. First operand 4916 states and 6171 transitions. Second operand 9 states. [2018-12-02 13:03:34,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 13:03:34,379 INFO L93 Difference]: Finished difference Result 10380 states and 13066 transitions. [2018-12-02 13:03:34,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-02 13:03:34,379 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 229 [2018-12-02 13:03:34,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 13:03:34,395 INFO L225 Difference]: With dead ends: 10380 [2018-12-02 13:03:34,396 INFO L226 Difference]: Without dead ends: 6020 [2018-12-02 13:03:34,405 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 234 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2018-12-02 13:03:34,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6020 states. [2018-12-02 13:03:34,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6020 to 5881. [2018-12-02 13:03:34,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5881 states. [2018-12-02 13:03:34,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5881 states to 5881 states and 7220 transitions. [2018-12-02 13:03:34,476 INFO L78 Accepts]: Start accepts. Automaton has 5881 states and 7220 transitions. Word has length 229 [2018-12-02 13:03:34,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 13:03:34,477 INFO L480 AbstractCegarLoop]: Abstraction has 5881 states and 7220 transitions. [2018-12-02 13:03:34,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 13:03:34,477 INFO L276 IsEmpty]: Start isEmpty. Operand 5881 states and 7220 transitions. [2018-12-02 13:03:34,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2018-12-02 13:03:34,483 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 13:03:34,484 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2018-12-02 13:03:34,484 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 13:03:34,484 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:03:34,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1405086944, now seen corresponding path program 1 times [2018-12-02 13:03:34,484 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 13:03:34,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:03:34,484 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:03:34,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:03:34,485 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 13:03:34,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:03:34,605 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 168 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:03:34,605 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 13:03:34,605 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 13:03:34,606 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 246 with the following transitions: [2018-12-02 13:03:34,606 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [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], [105], [106], [109], [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], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [689], [697], [705], [713], [721], [729], [737], [741], [743], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-02 13:03:34,608 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 13:03:34,608 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 13:03:34,879 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 13:03:34,880 INFO L272 AbstractInterpreter]: Visited 143 different actions 564 times. Merged at 7 different actions 25 times. Never widened. Performed 7795 root evaluator evaluations with a maximum evaluation depth of 3. Performed 7795 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 6 fixpoints after 3 different actions. Largest state had 42 variables. [2018-12-02 13:03:34,881 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:03:34,881 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 13:03:34,881 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 13:03:34,881 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e44e631c-01c0-418b-b63c-9cbd2a809c44/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 [2018-12-02 13:03:34,887 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:03:34,887 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 13:03:34,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:03:34,932 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 13:03:34,963 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2018-12-02 13:03:34,963 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 13:03:35,009 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2018-12-02 13:03:35,024 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-02 13:03:35,024 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [9] total 10 [2018-12-02 13:03:35,024 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 13:03:35,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 13:03:35,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 13:03:35,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-12-02 13:03:35,025 INFO L87 Difference]: Start difference. First operand 5881 states and 7220 transitions. Second operand 3 states. [2018-12-02 13:03:35,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 13:03:35,269 INFO L93 Difference]: Finished difference Result 12612 states and 16025 transitions. [2018-12-02 13:03:35,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 13:03:35,270 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 245 [2018-12-02 13:03:35,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 13:03:35,287 INFO L225 Difference]: With dead ends: 12612 [2018-12-02 13:03:35,287 INFO L226 Difference]: Without dead ends: 8252 [2018-12-02 13:03:35,294 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 488 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-12-02 13:03:35,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8252 states. [2018-12-02 13:03:35,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8252 to 7696. [2018-12-02 13:03:35,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7696 states. [2018-12-02 13:03:35,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7696 states to 7696 states and 9608 transitions. [2018-12-02 13:03:35,394 INFO L78 Accepts]: Start accepts. Automaton has 7696 states and 9608 transitions. Word has length 245 [2018-12-02 13:03:35,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 13:03:35,394 INFO L480 AbstractCegarLoop]: Abstraction has 7696 states and 9608 transitions. [2018-12-02 13:03:35,394 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 13:03:35,394 INFO L276 IsEmpty]: Start isEmpty. Operand 7696 states and 9608 transitions. [2018-12-02 13:03:35,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2018-12-02 13:03:35,403 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 13:03:35,403 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 13:03:35,404 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 13:03:35,404 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:03:35,404 INFO L82 PathProgramCache]: Analyzing trace with hash -807166429, now seen corresponding path program 1 times [2018-12-02 13:03:35,404 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 13:03:35,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:03:35,404 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:03:35,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:03:35,404 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 13:03:35,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:03:35,538 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 164 proven. 51 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-12-02 13:03:35,538 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 13:03:35,538 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 13:03:35,538 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 256 with the following transitions: [2018-12-02 13:03:35,538 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], [89], [90], [94], [98], [102], [105], [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], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [689], [697], [705], [713], [721], [729], [737], [741], [743], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-02 13:03:35,541 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 13:03:35,541 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 13:03:35,818 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 13:03:35,818 INFO L272 AbstractInterpreter]: Visited 144 different actions 570 times. Merged at 8 different actions 27 times. Never widened. Performed 7928 root evaluator evaluations with a maximum evaluation depth of 3. Performed 7928 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 7 fixpoints after 3 different actions. Largest state had 42 variables. [2018-12-02 13:03:35,819 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:03:35,819 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 13:03:35,819 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 13:03:35,819 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e44e631c-01c0-418b-b63c-9cbd2a809c44/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 [2018-12-02 13:03:35,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:03:35,825 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 13:03:35,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:03:35,875 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 13:03:35,911 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 156 proven. 25 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2018-12-02 13:03:35,911 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 13:03:35,998 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2018-12-02 13:03:36,013 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 13:03:36,013 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4, 4] total 12 [2018-12-02 13:03:36,013 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 13:03:36,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-02 13:03:36,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-02 13:03:36,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2018-12-02 13:03:36,014 INFO L87 Difference]: Start difference. First operand 7696 states and 9608 transitions. Second operand 11 states. [2018-12-02 13:03:37,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 13:03:37,599 INFO L93 Difference]: Finished difference Result 17179 states and 27029 transitions. [2018-12-02 13:03:37,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-12-02 13:03:37,599 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 255 [2018-12-02 13:03:37,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 13:03:37,638 INFO L225 Difference]: With dead ends: 17179 [2018-12-02 13:03:37,639 INFO L226 Difference]: Without dead ends: 11002 [2018-12-02 13:03:37,657 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 572 GetRequests, 528 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 514 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=343, Invalid=1463, Unknown=0, NotChecked=0, Total=1806 [2018-12-02 13:03:37,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11002 states. [2018-12-02 13:03:37,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11002 to 9107. [2018-12-02 13:03:37,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9107 states. [2018-12-02 13:03:37,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9107 states to 9107 states and 11004 transitions. [2018-12-02 13:03:37,862 INFO L78 Accepts]: Start accepts. Automaton has 9107 states and 11004 transitions. Word has length 255 [2018-12-02 13:03:37,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 13:03:37,862 INFO L480 AbstractCegarLoop]: Abstraction has 9107 states and 11004 transitions. [2018-12-02 13:03:37,862 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-02 13:03:37,862 INFO L276 IsEmpty]: Start isEmpty. Operand 9107 states and 11004 transitions. [2018-12-02 13:03:37,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2018-12-02 13:03:37,872 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 13:03:37,873 INFO L402 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 13:03:37,873 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 13:03:37,873 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:03:37,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1577156162, now seen corresponding path program 1 times [2018-12-02 13:03:37,873 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 13:03:37,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:03:37,873 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:03:37,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:03:37,874 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 13:03:37,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:03:38,057 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 259 proven. 154 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2018-12-02 13:03:38,057 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 13:03:38,057 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 13:03:38,057 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 310 with the following transitions: [2018-12-02 13:03:38,057 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [33], [34], [37], [38], [42], [45], [46], [50], [53], [54], [58], [62], [66], [70], [74], [78], [82], [86], [89], [90], [94], [98], [102], [105], [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], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [689], [697], [705], [713], [721], [729], [737], [741], [743], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-02 13:03:38,059 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 13:03:38,060 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 13:03:38,339 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 13:03:38,340 INFO L272 AbstractInterpreter]: Visited 147 different actions 586 times. Merged at 11 different actions 31 times. Never widened. Performed 8063 root evaluator evaluations with a maximum evaluation depth of 3. Performed 8063 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 11 fixpoints after 5 different actions. Largest state had 42 variables. [2018-12-02 13:03:38,341 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:03:38,341 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 13:03:38,341 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 13:03:38,341 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e44e631c-01c0-418b-b63c-9cbd2a809c44/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 13:03:38,347 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:03:38,347 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 13:03:38,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:03:38,410 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 13:03:38,460 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 346 proven. 2 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2018-12-02 13:03:38,461 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 13:03:38,530 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 266 proven. 18 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2018-12-02 13:03:38,545 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 13:03:38,546 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 15 [2018-12-02 13:03:38,546 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 13:03:38,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-02 13:03:38,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-02 13:03:38,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2018-12-02 13:03:38,547 INFO L87 Difference]: Start difference. First operand 9107 states and 11004 transitions. Second operand 12 states. [2018-12-02 13:03:39,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 13:03:39,768 INFO L93 Difference]: Finished difference Result 17473 states and 21852 transitions. [2018-12-02 13:03:39,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-12-02 13:03:39,769 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 309 [2018-12-02 13:03:39,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 13:03:39,787 INFO L225 Difference]: With dead ends: 17473 [2018-12-02 13:03:39,788 INFO L226 Difference]: Without dead ends: 9885 [2018-12-02 13:03:39,804 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 680 GetRequests, 638 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=387, Invalid=1505, Unknown=0, NotChecked=0, Total=1892 [2018-12-02 13:03:39,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9885 states. [2018-12-02 13:03:39,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9885 to 9079. [2018-12-02 13:03:39,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9079 states. [2018-12-02 13:03:39,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9079 states to 9079 states and 10863 transitions. [2018-12-02 13:03:39,926 INFO L78 Accepts]: Start accepts. Automaton has 9079 states and 10863 transitions. Word has length 309 [2018-12-02 13:03:39,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 13:03:39,927 INFO L480 AbstractCegarLoop]: Abstraction has 9079 states and 10863 transitions. [2018-12-02 13:03:39,927 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-02 13:03:39,927 INFO L276 IsEmpty]: Start isEmpty. Operand 9079 states and 10863 transitions. [2018-12-02 13:03:39,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2018-12-02 13:03:39,935 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 13:03:39,935 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2018-12-02 13:03:39,936 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 13:03:39,936 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:03:39,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1809530709, now seen corresponding path program 1 times [2018-12-02 13:03:39,936 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 13:03:39,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:03:39,936 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:03:39,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:03:39,936 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 13:03:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:03:40,013 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 257 proven. 18 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2018-12-02 13:03:40,013 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 13:03:40,013 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 13:03:40,013 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 318 with the following transitions: [2018-12-02 13:03:40,013 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [45], [46], [49], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [89], [90], [94], [98], [102], [106], [109], [110], [114], [118], [122], [126], [129], [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], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [689], [697], [705], [713], [721], [729], [737], [741], [743], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-02 13:03:40,015 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 13:03:40,015 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 13:03:40,309 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 13:03:40,309 INFO L272 AbstractInterpreter]: Visited 146 different actions 578 times. Merged at 8 different actions 27 times. Never widened. Performed 8018 root evaluator evaluations with a maximum evaluation depth of 3. Performed 8018 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 9 fixpoints after 4 different actions. Largest state had 42 variables. [2018-12-02 13:03:40,311 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:03:40,311 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 13:03:40,311 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 13:03:40,311 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e44e631c-01c0-418b-b63c-9cbd2a809c44/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 13:03:40,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:03:40,317 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 13:03:40,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:03:40,375 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 13:03:40,415 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 338 proven. 2 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2018-12-02 13:03:40,415 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 13:03:40,475 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 257 proven. 18 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2018-12-02 13:03:40,490 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 13:03:40,491 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-12-02 13:03:40,491 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 13:03:40,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 13:03:40,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 13:03:40,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-12-02 13:03:40,492 INFO L87 Difference]: Start difference. First operand 9079 states and 10863 transitions. Second operand 9 states. [2018-12-02 13:03:41,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 13:03:41,548 INFO L93 Difference]: Finished difference Result 16494 states and 20260 transitions. [2018-12-02 13:03:41,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-02 13:03:41,548 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 317 [2018-12-02 13:03:41,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 13:03:41,549 INFO L225 Difference]: With dead ends: 16494 [2018-12-02 13:03:41,549 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 13:03:41,570 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 638 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2018-12-02 13:03:41,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 13:03:41,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 13:03:41,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 13:03:41,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 13:03:41,571 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 317 [2018-12-02 13:03:41,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 13:03:41,571 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 13:03:41,571 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 13:03:41,571 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 13:03:41,571 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 13:03:41,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 13:03:41,635 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:41,753 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:41,804 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:41,835 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:41,856 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:41,859 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:41,860 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:41,861 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:41,877 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:41,878 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:41,879 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:41,910 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:41,911 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:41,911 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:41,911 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:41,925 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:41,929 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:41,929 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:41,930 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:41,931 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:41,943 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:41,945 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:41,968 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:41,997 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,008 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,009 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,012 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,050 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,050 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,051 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,051 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,052 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,052 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,052 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,053 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,053 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,077 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,163 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,164 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,241 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,242 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,250 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,251 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,251 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,258 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,263 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,271 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,278 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,286 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,290 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,314 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,321 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,338 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,351 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,353 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,356 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,358 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,358 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,358 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,364 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,367 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,387 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,393 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,395 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,406 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,414 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,416 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,429 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,439 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,446 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,451 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,455 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,460 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,464 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,467 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,471 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,491 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,499 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,503 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,532 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,560 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,568 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,579 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,588 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,588 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,599 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,636 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,646 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,687 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,704 WARN L180 SmtUtils]: Spent 889.00 ms on a formula simplification. DAG size of input: 876 DAG size of output: 380 [2018-12-02 13:03:42,752 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,769 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,771 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,771 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,773 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,786 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,787 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,788 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,812 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,812 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,813 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,813 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,824 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,827 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,828 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,828 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,829 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,840 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,842 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,862 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,890 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,913 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,914 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,917 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,952 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,952 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,953 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,953 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,954 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,954 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,955 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,955 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,955 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:42,978 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,061 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,061 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,139 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,140 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,148 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,149 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,149 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,156 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,161 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,169 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,176 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,184 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,188 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,212 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,219 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,236 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,249 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,251 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,254 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,256 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,256 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,257 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,262 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,265 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,285 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,291 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,294 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,305 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,312 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,315 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,328 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,338 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,344 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,349 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,353 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,358 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,363 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,365 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,370 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,389 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,396 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,399 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,424 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,458 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,466 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,476 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,485 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,486 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,496 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,524 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,531 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,563 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 13:03:43,576 WARN L180 SmtUtils]: Spent 870.00 ms on a formula simplification. DAG size of input: 888 DAG size of output: 376 [2018-12-02 13:03:45,161 WARN L180 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 299 DAG size of output: 107 [2018-12-02 13:03:46,495 WARN L180 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 366 DAG size of output: 76 [2018-12-02 13:03:47,574 WARN L180 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 361 DAG size of output: 76 [2018-12-02 13:03:47,576 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 13:03:47,576 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(~a8~0)| ~a8~0) (= |old(~a16~0)| ~a16~0) (= ~a21~0 |old(~a21~0)|)) [2018-12-02 13:03:47,576 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 13:03:47,576 INFO L448 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2018-12-02 13:03:47,577 INFO L448 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2018-12-02 13:03:47,577 INFO L448 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,577 INFO L448 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,577 INFO L448 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,577 INFO L448 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,577 INFO L448 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,577 INFO L448 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,577 INFO L448 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2018-12-02 13:03:47,577 INFO L448 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2018-12-02 13:03:47,577 INFO L448 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2018-12-02 13:03:47,577 INFO L448 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2018-12-02 13:03:47,577 INFO L448 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2018-12-02 13:03:47,577 INFO L448 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2018-12-02 13:03:47,577 INFO L448 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2018-12-02 13:03:47,577 INFO L448 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2018-12-02 13:03:47,577 INFO L448 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2018-12-02 13:03:47,578 INFO L448 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2018-12-02 13:03:47,578 INFO L448 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,578 INFO L448 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,578 INFO L448 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,578 INFO L448 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,578 INFO L448 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,578 INFO L448 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,578 INFO L448 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2018-12-02 13:03:47,578 INFO L448 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2018-12-02 13:03:47,578 INFO L448 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2018-12-02 13:03:47,578 INFO L448 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2018-12-02 13:03:47,578 INFO L448 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2018-12-02 13:03:47,578 INFO L448 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2018-12-02 13:03:47,578 INFO L448 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2018-12-02 13:03:47,578 INFO L448 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2018-12-02 13:03:47,578 INFO L448 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2018-12-02 13:03:47,579 INFO L448 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2018-12-02 13:03:47,579 INFO L448 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2018-12-02 13:03:47,579 INFO L448 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2018-12-02 13:03:47,579 INFO L448 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2018-12-02 13:03:47,579 INFO L448 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2018-12-02 13:03:47,579 INFO L448 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2018-12-02 13:03:47,579 INFO L448 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,579 INFO L448 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,579 INFO L448 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,579 INFO L448 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,579 INFO L448 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,579 INFO L448 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2018-12-02 13:03:47,579 INFO L448 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2018-12-02 13:03:47,579 INFO L448 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2018-12-02 13:03:47,579 INFO L448 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2018-12-02 13:03:47,579 INFO L448 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2018-12-02 13:03:47,579 INFO L448 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2018-12-02 13:03:47,580 INFO L448 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2018-12-02 13:03:47,580 INFO L448 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2018-12-02 13:03:47,580 INFO L448 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2018-12-02 13:03:47,580 INFO L448 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,580 INFO L448 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,580 INFO L448 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,580 INFO L448 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,580 INFO L448 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,580 INFO L448 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2018-12-02 13:03:47,580 INFO L448 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2018-12-02 13:03:47,580 INFO L448 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2018-12-02 13:03:47,580 INFO L448 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2018-12-02 13:03:47,580 INFO L448 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2018-12-02 13:03:47,580 INFO L448 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2018-12-02 13:03:47,580 INFO L448 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2018-12-02 13:03:47,580 INFO L448 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2018-12-02 13:03:47,581 INFO L448 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2018-12-02 13:03:47,581 INFO L448 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2018-12-02 13:03:47,581 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 569) no Hoare annotation was computed. [2018-12-02 13:03:47,581 INFO L448 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2018-12-02 13:03:47,581 INFO L448 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2018-12-02 13:03:47,581 INFO L448 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2018-12-02 13:03:47,581 INFO L448 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,581 INFO L448 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,581 INFO L448 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,581 INFO L448 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,581 INFO L448 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,581 INFO L448 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2018-12-02 13:03:47,581 INFO L448 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2018-12-02 13:03:47,581 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2018-12-02 13:03:47,581 INFO L448 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2018-12-02 13:03:47,581 INFO L448 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2018-12-02 13:03:47,581 INFO L448 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2018-12-02 13:03:47,582 INFO L448 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2018-12-02 13:03:47,582 INFO L448 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2018-12-02 13:03:47,582 INFO L448 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2018-12-02 13:03:47,582 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,582 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,582 INFO L448 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,582 INFO L448 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,582 INFO L448 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,582 INFO L448 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,582 INFO L448 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2018-12-02 13:03:47,582 INFO L448 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,582 INFO L448 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2018-12-02 13:03:47,582 INFO L448 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2018-12-02 13:03:47,582 INFO L448 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2018-12-02 13:03:47,582 INFO L448 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2018-12-02 13:03:47,582 INFO L448 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2018-12-02 13:03:47,582 INFO L448 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2018-12-02 13:03:47,583 INFO L448 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2018-12-02 13:03:47,583 INFO L448 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2018-12-02 13:03:47,583 INFO L448 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2018-12-02 13:03:47,583 INFO L448 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2018-12-02 13:03:47,583 INFO L448 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2018-12-02 13:03:47,583 INFO L448 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2018-12-02 13:03:47,583 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2018-12-02 13:03:47,583 INFO L448 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,583 INFO L448 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,583 INFO L448 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,583 INFO L448 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,583 INFO L448 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,583 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2018-12-02 13:03:47,583 INFO L448 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2018-12-02 13:03:47,583 INFO L448 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2018-12-02 13:03:47,583 INFO L448 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2018-12-02 13:03:47,583 INFO L448 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2018-12-02 13:03:47,583 INFO L448 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2018-12-02 13:03:47,584 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2018-12-02 13:03:47,584 INFO L448 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2018-12-02 13:03:47,584 INFO L448 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,584 INFO L448 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,584 INFO L448 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,584 INFO L448 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,584 INFO L448 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,584 INFO L448 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2018-12-02 13:03:47,584 INFO L448 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2018-12-02 13:03:47,584 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2018-12-02 13:03:47,584 INFO L448 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2018-12-02 13:03:47,584 INFO L448 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2018-12-02 13:03:47,584 INFO L448 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2018-12-02 13:03:47,584 INFO L448 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2018-12-02 13:03:47,584 INFO L448 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2018-12-02 13:03:47,584 INFO L448 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2018-12-02 13:03:47,584 INFO L448 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2018-12-02 13:03:47,585 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse22 (= 1 |old(~a20~0)|))) (let ((.cse23 (= 1 ~a21~0)) (.cse24 (= |old(~a20~0)| ~a20~0)) (.cse25 (= ~a7~0 |old(~a7~0)|)) (.cse26 (= ~a17~0 |old(~a17~0)|)) (.cse27 (= ~a16~0 |old(~a16~0)|)) (.cse28 (<= |old(~a8~0)| ~a8~0)) (.cse11 (not .cse22)) (.cse2 (not (= 8 ~a12~0))) (.cse14 (< 0 |old(~a17~0)|))) (let ((.cse5 (< 0 |old(~a20~0)|)) (.cse15 (< |old(~a8~0)| 14)) (.cse18 (< |old(~a20~0)| 1)) (.cse16 (or .cse11 .cse2 .cse14)) (.cse9 (= 6 |old(~a16~0)|)) (.cse20 (and .cse24 (= ~a21~0 |old(~a21~0)|) .cse25 .cse26 .cse27 .cse28)) (.cse19 (< 0 |old(~a21~0)|)) (.cse21 (not (= 4 |old(~a16~0)|))) (.cse13 (< |old(~a16~0)| 5)) (.cse4 (and .cse24 .cse25 .cse26 .cse27 .cse28 .cse23)) (.cse1 (= 1 |old(~a7~0)|)) (.cse3 (< |old(~a8~0)| 15)) (.cse10 (not (= 0 |old(~a7~0)|))) (.cse0 (not (= 1 |old(~a21~0)|))) (.cse8 (= |calculate_output_#in~input| 0)) (.cse6 (not (= 1 |old(~a17~0)|))) (.cse7 (= ~a8~0 15)) (.cse12 (not (= 15 |old(~a8~0)|))) (.cse17 (not (= 5 |old(~a16~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (or .cse7 (and (or .cse8 (or (not .cse9) .cse10 .cse0 .cse11 .cse12 (not (= 0 |old(~a17~0)|)) .cse2)) (or .cse9 .cse10 .cse0 .cse13 .cse12 (not (= |old(~a20~0)| 1)) .cse2 .cse14 .cse8))) (or .cse4 .cse0 .cse13 .cse15 .cse16) (or .cse10 .cse0 .cse7 .cse2 .cse14 .cse8 .cse12 .cse17) (or .cse9 .cse0 .cse15 .cse2 .cse4 .cse14 .cse5) (or .cse13 .cse2 .cse18 .cse14 .cse19 .cse20) (or .cse10 .cse0 .cse21 .cse2 .cse14 .cse8 .cse11 .cse12 .cse7) (or .cse0 .cse1 .cse13 .cse11 .cse2 .cse4 .cse6) (or .cse0 (or .cse9 .cse1 .cse2 .cse22) .cse4 .cse3 .cse6) (or .cse4 .cse9 .cse0 .cse13 .cse15 .cse2 .cse14) (or .cse0 (or .cse1 .cse21 .cse2 .cse14) .cse4) (or .cse0 .cse1 .cse21 .cse4 .cse2 .cse18 .cse6) (or .cse20 (or .cse16 .cse19)) (or .cse9 .cse20 .cse2 .cse19 .cse6) (or .cse0 .cse11 .cse21 (and (= 1 ~a7~0) (= 1 ~a20~0) (= 13 ~a8~0) (= |old(~a16~0)| ~a16~0) .cse23 (= 1 ~a17~0)) .cse2 (not .cse1) (not (= 13 |old(~a8~0)|)) .cse6) (or .cse0 .cse13 .cse4 (or .cse1 .cse2 .cse14) .cse3) (or .cse10 .cse0 .cse2 .cse8 .cse6 .cse7 .cse12 .cse17))))) [2018-12-02 13:03:47,585 INFO L448 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2018-12-02 13:03:47,585 INFO L448 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,585 INFO L448 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,585 INFO L448 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,585 INFO L448 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,585 INFO L448 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2018-12-02 13:03:47,585 INFO L448 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,585 INFO L448 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,585 INFO L448 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2018-12-02 13:03:47,585 INFO L448 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2018-12-02 13:03:47,585 INFO L448 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2018-12-02 13:03:47,586 INFO L448 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2018-12-02 13:03:47,586 INFO L448 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2018-12-02 13:03:47,586 INFO L448 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2018-12-02 13:03:47,586 INFO L448 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2018-12-02 13:03:47,586 INFO L448 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2018-12-02 13:03:47,586 INFO L448 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2018-12-02 13:03:47,586 INFO L448 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2018-12-02 13:03:47,586 INFO L448 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2018-12-02 13:03:47,586 INFO L448 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2018-12-02 13:03:47,586 INFO L448 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,586 INFO L448 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,586 INFO L448 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,586 INFO L448 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,586 INFO L448 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,586 INFO L448 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2018-12-02 13:03:47,586 INFO L448 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,586 INFO L448 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2018-12-02 13:03:47,587 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2018-12-02 13:03:47,587 INFO L448 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2018-12-02 13:03:47,587 INFO L448 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2018-12-02 13:03:47,587 INFO L448 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2018-12-02 13:03:47,587 INFO L448 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2018-12-02 13:03:47,587 INFO L448 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2018-12-02 13:03:47,587 INFO L448 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2018-12-02 13:03:47,587 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2018-12-02 13:03:47,587 INFO L448 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2018-12-02 13:03:47,587 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2018-12-02 13:03:47,587 INFO L448 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2018-12-02 13:03:47,587 INFO L448 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2018-12-02 13:03:47,587 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2018-12-02 13:03:47,587 INFO L448 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,587 INFO L448 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,587 INFO L448 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,587 INFO L448 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,587 INFO L448 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,588 INFO L448 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 13:03:47,588 INFO L448 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2018-12-02 13:03:47,588 INFO L448 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2018-12-02 13:03:47,588 INFO L448 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2018-12-02 13:03:47,588 INFO L448 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2018-12-02 13:03:47,588 INFO L448 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2018-12-02 13:03:47,588 INFO L448 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2018-12-02 13:03:47,588 INFO L448 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2018-12-02 13:03:47,588 INFO L448 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2018-12-02 13:03:47,588 INFO L448 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2018-12-02 13:03:47,588 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2018-12-02 13:03:47,588 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 13:03:47,588 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a7~0 0) (= ~a8~0 15) (= 1 ~a21~0) (= ~a12~0 8) (= ~a20~0 1) (= 1 ~a17~0) (= ~a16~0 5)) [2018-12-02 13:03:47,588 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 13:03:47,588 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 13:03:47,589 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)|)) (and (= ~a8~0 15) (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= 1 ~a21~0) (= ~a20~0 1) (= ~a16~0 5)) (not (= 8 ~a12~0)) (not (= 1 |old(~a17~0)|)) (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (not (= 5 |old(~a16~0)|))) [2018-12-02 13:03:47,589 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2018-12-02 13:03:47,589 INFO L444 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (let ((.cse3 (<= ~a20~0 0)) (.cse9 (<= 14 ~a8~0)) (.cse5 (<= ~a21~0 0)) (.cse11 (= |old(~a20~0)| ~a20~0)) (.cse10 (not (= ~a16~0 6))) (.cse12 (= ~a16~0 4)) (.cse8 (<= 1 ~a20~0)) (.cse4 (= 1 ~a17~0)) (.cse0 (not (= ~a7~0 1))) (.cse1 (<= 15 ~a8~0)) (.cse6 (<= ~a17~0 0)) (.cse7 (<= 5 ~a16~0)) (.cse2 (= 1 ~a21~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse7 .cse8) (not (= 1 |old(~a20~0)|)) (not (= 5 |old(~a16~0)|)) (and .cse9 .cse10 .cse6 .cse2 .cse3) (and .cse11 .cse9 .cse6 .cse2 .cse7) (and (= 1 ~a20~0) (= 13 ~a8~0) (= 4 ~a16~0) .cse2 .cse4) (not (= 1 |old(~a21~0)|)) (and .cse9 .cse10 .cse2 .cse6 .cse7) (not (= 8 ~a12~0)) (and .cse0 .cse11 .cse2 .cse7 .cse4) (and .cse5 .cse10 .cse4) (and .cse2 (and .cse0 .cse12 .cse6)) (and .cse5 .cse11 .cse6) (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a17~0)|)) (not (= 15 |old(~a8~0)|)) (and (and (and (not (= ~a20~0 1)) .cse0 .cse10) .cse1 .cse4) (= ~a21~0 |old(~a21~0)|)) (and .cse2 (and .cse0 .cse12 .cse8) .cse4) (and (and .cse0 .cse1 .cse6 .cse7) .cse2))) [2018-12-02 13:03:47,589 INFO L448 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2018-12-02 13:03:47,589 INFO L448 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2018-12-02 13:03:47,589 INFO L444 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse3 (<= ~a20~0 0)) (.cse9 (<= 14 ~a8~0)) (.cse5 (<= ~a21~0 0)) (.cse11 (= |old(~a20~0)| ~a20~0)) (.cse10 (not (= ~a16~0 6))) (.cse12 (= ~a16~0 4)) (.cse8 (<= 1 ~a20~0)) (.cse4 (= 1 ~a17~0)) (.cse0 (not (= ~a7~0 1))) (.cse1 (<= 15 ~a8~0)) (.cse6 (<= ~a17~0 0)) (.cse7 (<= 5 ~a16~0)) (.cse2 (= 1 ~a21~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse7 .cse8) (not (= 1 |old(~a20~0)|)) (not (= 5 |old(~a16~0)|)) (and .cse9 .cse10 .cse6 .cse2 .cse3) (and .cse11 .cse9 .cse6 .cse2 .cse7) (and (= 1 ~a20~0) (= 13 ~a8~0) (= 4 ~a16~0) .cse2 .cse4) (not (= 1 |old(~a21~0)|)) (and .cse9 .cse10 .cse2 .cse6 .cse7) (not (= 8 ~a12~0)) (and .cse0 .cse11 .cse2 .cse7 .cse4) (and .cse5 .cse10 .cse4) (and .cse2 (and .cse0 .cse12 .cse6)) (and .cse5 .cse11 .cse6) (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a17~0)|)) (not (= 15 |old(~a8~0)|)) (and (and (and (not (= ~a20~0 1)) .cse0 .cse10) .cse1 .cse4) (= ~a21~0 |old(~a21~0)|)) (and .cse2 (and .cse0 .cse12 .cse8) .cse4) (and (and .cse0 .cse1 .cse6 .cse7) .cse2))) [2018-12-02 13:03:47,589 INFO L448 ceAbstractionStarter]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2018-12-02 13:03:47,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:03:47 BoogieIcfgContainer [2018-12-02 13:03:47,599 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 13:03:47,600 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 13:03:47,600 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 13:03:47,600 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 13:03:47,600 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:03:18" (3/4) ... [2018-12-02 13:03:47,603 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 13:03:47,608 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 13:03:47,608 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-12-02 13:03:47,608 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 13:03:47,614 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-02 13:03:47,614 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-02 13:03:47,632 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((!(a7 == 1) && 15 <= a8) && 1 == a21) && a20 <= 0) && 1 == a17) || (((a21 <= 0 && a17 <= 0) && 5 <= a16) && 1 <= a20)) || !(1 == \old(a20))) || !(5 == \old(a16))) || ((((14 <= a8 && !(a16 == 6)) && a17 <= 0) && 1 == a21) && a20 <= 0)) || ((((\old(a20) == a20 && 14 <= a8) && a17 <= 0) && 1 == a21) && 5 <= a16)) || ((((1 == a20 && 13 == a8) && 4 == a16) && 1 == a21) && 1 == a17)) || !(1 == \old(a21))) || ((((14 <= a8 && !(a16 == 6)) && 1 == a21) && a17 <= 0) && 5 <= a16)) || !(8 == a12)) || ((((!(a7 == 1) && \old(a20) == a20) && 1 == a21) && 5 <= a16) && 1 == a17)) || ((a21 <= 0 && !(a16 == 6)) && 1 == a17)) || (1 == a21 && (!(a7 == 1) && a16 == 4) && a17 <= 0)) || ((a21 <= 0 && \old(a20) == a20) && a17 <= 0)) || !(0 == \old(a7))) || !(1 == \old(a17))) || !(15 == \old(a8))) || (((((!(a20 == 1) && !(a7 == 1)) && !(a16 == 6)) && 15 <= a8) && 1 == a17) && a21 == \old(a21))) || ((1 == a21 && (!(a7 == 1) && a16 == 4) && 1 <= a20) && 1 == a17)) || ((((!(a7 == 1) && 15 <= a8) && a17 <= 0) && 5 <= a16) && 1 == a21) [2018-12-02 13:03:47,672 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e44e631c-01c0-418b-b63c-9cbd2a809c44/bin-2019/utaipan/witness.graphml [2018-12-02 13:03:47,672 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 13:03:47,672 INFO L168 Benchmark]: Toolchain (without parser) took 30364.71 ms. Allocated memory was 1.0 GB in the beginning and 2.8 GB in the end (delta: 1.8 GB). Free memory was 941.6 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 653.9 MB. Max. memory is 11.5 GB. [2018-12-02 13:03:47,673 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 13:03:47,673 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -152.9 MB). Peak memory consumption was 38.3 MB. Max. memory is 11.5 GB. [2018-12-02 13:03:47,673 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.30 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. [2018-12-02 13:03:47,673 INFO L168 Benchmark]: Boogie Preprocessor took 37.14 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. [2018-12-02 13:03:47,673 INFO L168 Benchmark]: RCFGBuilder took 623.00 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 974.1 MB in the end (delta: 109.6 MB). Peak memory consumption was 109.6 MB. Max. memory is 11.5 GB. [2018-12-02 13:03:47,673 INFO L168 Benchmark]: TraceAbstraction took 29317.98 ms. Allocated memory was 1.1 GB in the beginning and 2.8 GB in the end (delta: 1.7 GB). Free memory was 974.1 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.6 GB. Max. memory is 11.5 GB. [2018-12-02 13:03:47,674 INFO L168 Benchmark]: Witness Printer took 72.00 ms. Allocated memory is still 2.8 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 37.2 MB). Peak memory consumption was 37.2 MB. Max. memory is 11.5 GB. [2018-12-02 13:03:47,675 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 292.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -152.9 MB). Peak memory consumption was 38.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.30 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. * Boogie Preprocessor took 37.14 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 623.00 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 974.1 MB in the end (delta: 109.6 MB). Peak memory consumption was 109.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 29317.98 ms. Allocated memory was 1.1 GB in the beginning and 2.8 GB in the end (delta: 1.7 GB). Free memory was 974.1 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.6 GB. Max. memory is 11.5 GB. * Witness Printer took 72.00 ms. Allocated memory is still 2.8 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 37.2 MB). Peak memory consumption was 37.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 569]: 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: ((((((((((((((((((((((!(a7 == 1) && 15 <= a8) && 1 == a21) && a20 <= 0) && 1 == a17) || (((a21 <= 0 && a17 <= 0) && 5 <= a16) && 1 <= a20)) || !(1 == \old(a20))) || !(5 == \old(a16))) || ((((14 <= a8 && !(a16 == 6)) && a17 <= 0) && 1 == a21) && a20 <= 0)) || ((((\old(a20) == a20 && 14 <= a8) && a17 <= 0) && 1 == a21) && 5 <= a16)) || ((((1 == a20 && 13 == a8) && 4 == a16) && 1 == a21) && 1 == a17)) || !(1 == \old(a21))) || ((((14 <= a8 && !(a16 == 6)) && 1 == a21) && a17 <= 0) && 5 <= a16)) || !(8 == a12)) || ((((!(a7 == 1) && \old(a20) == a20) && 1 == a21) && 5 <= a16) && 1 == a17)) || ((a21 <= 0 && !(a16 == 6)) && 1 == a17)) || (1 == a21 && (!(a7 == 1) && a16 == 4) && a17 <= 0)) || ((a21 <= 0 && \old(a20) == a20) && a17 <= 0)) || !(0 == \old(a7))) || !(1 == \old(a17))) || !(15 == \old(a8))) || (((((!(a20 == 1) && !(a7 == 1)) && !(a16 == 6)) && 15 <= a8) && 1 == a17) && a21 == \old(a21))) || ((1 == a21 && (!(a7 == 1) && a16 == 4) && 1 <= a20) && 1 == a17)) || ((((!(a7 == 1) && 15 <= a8) && a17 <= 0) && 5 <= a16) && 1 == a21) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. SAFE Result, 29.2s OverallTime, 14 OverallIterations, 8 TraceHistogramMax, 15.7s AutomataDifference, 0.0s DeadEndRemovalTime, 6.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 644 SDtfs, 13314 SDslu, 1046 SDs, 0 SdLazy, 14382 SolverSat, 2663 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.3s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 4221 GetRequests, 3975 SyntacticMatches, 15 SemanticMatches, 231 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1627 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9107occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.6s AbstIntTime, 10 AbstIntIterations, 4 AbstIntStrong, 0.997452321585461 AbsIntWeakeningRatio, 0.2 AbsIntAvgWeakeningVarsNumRemoved, 29.144303797468353 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 14 MinimizatonAttempts, 4422 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 618 PreInvPairs, 950 NumberOfFragments, 1288 HoareAnnotationTreeSize, 618 FomulaSimplifications, 380383 FormulaSimplificationTreeSizeReduction, 1.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 55898 FormulaSimplificationTreeSizeReductionInter, 3.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 4512 NumberOfCodeBlocks, 4512 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 6053 ConstructedInterpolants, 0 QuantifiedInterpolants, 3328841 SizeOfPredicates, 8 NumberOfNonLiveVariables, 4049 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 26 InterpolantComputations, 6 PerfectInterpolantSequences, 5196/5717 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...