./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label59_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0a224cd3-f090-45c4-a259-cde987f0f9e9/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0a224cd3-f090-45c4-a259-cde987f0f9e9/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0a224cd3-f090-45c4-a259-cde987f0f9e9/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0a224cd3-f090-45c4-a259-cde987f0f9e9/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label59_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0a224cd3-f090-45c4-a259-cde987f0f9e9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0a224cd3-f090-45c4-a259-cde987f0f9e9/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 c830b0c5c33990192c3ba87f57f72df9f3b5a041 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 13:55:23,780 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:55:23,781 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:55:23,788 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:55:23,788 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:55:23,789 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:55:23,789 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:55:23,790 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:55:23,791 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:55:23,792 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:55:23,793 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:55:23,793 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:55:23,794 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:55:23,794 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:55:23,795 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:55:23,796 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:55:23,796 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:55:23,798 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:55:23,799 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:55:23,800 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:55:23,801 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:55:23,802 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:55:23,803 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:55:23,803 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:55:23,804 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:55:23,804 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:55:23,805 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:55:23,806 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:55:23,806 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:55:23,807 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:55:23,807 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:55:23,808 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:55:23,808 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:55:23,808 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:55:23,809 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:55:23,809 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:55:23,809 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0a224cd3-f090-45c4-a259-cde987f0f9e9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 13:55:23,819 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:55:23,820 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:55:23,820 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:55:23,821 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 13:55:23,821 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 13:55:23,821 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 13:55:23,821 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 13:55:23,821 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 13:55:23,821 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 13:55:23,821 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 13:55:23,822 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 13:55:23,822 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 13:55:23,822 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 13:55:23,822 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:55:23,823 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:55:23,823 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:55:23,823 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:55:23,823 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:55:23,823 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:55:23,823 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:55:23,823 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:55:23,824 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:55:23,824 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:55:23,824 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:55:23,824 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:55:23,824 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:55:23,824 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:55:23,824 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:55:23,825 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 13:55:23,825 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:55:23,825 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:55:23,825 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:55:23,825 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:55:23,825 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 13:55:23,826 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:55:23,826 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 13:55:23,826 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 13:55:23,826 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_0a224cd3-f090-45c4-a259-cde987f0f9e9/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 -> c830b0c5c33990192c3ba87f57f72df9f3b5a041 [2018-11-18 13:55:23,848 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:55:23,856 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:55:23,863 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:55:23,864 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:55:23,865 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:55:23,866 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0a224cd3-f090-45c4-a259-cde987f0f9e9/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem01_label59_true-unreach-call_false-termination.c [2018-11-18 13:55:23,917 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0a224cd3-f090-45c4-a259-cde987f0f9e9/bin-2019/utaipan/data/fbedaec0d/5011784ac2f04c90882ba1220408717f/FLAG4b6b3c367 [2018-11-18 13:55:24,344 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:55:24,344 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0a224cd3-f090-45c4-a259-cde987f0f9e9/sv-benchmarks/c/eca-rers2012/Problem01_label59_true-unreach-call_false-termination.c [2018-11-18 13:55:24,358 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0a224cd3-f090-45c4-a259-cde987f0f9e9/bin-2019/utaipan/data/fbedaec0d/5011784ac2f04c90882ba1220408717f/FLAG4b6b3c367 [2018-11-18 13:55:24,678 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0a224cd3-f090-45c4-a259-cde987f0f9e9/bin-2019/utaipan/data/fbedaec0d/5011784ac2f04c90882ba1220408717f [2018-11-18 13:55:24,681 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:55:24,681 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:55:24,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:55:24,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:55:24,684 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:55:24,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:55:24" (1/1) ... [2018-11-18 13:55:24,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d293ee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:24, skipping insertion in model container [2018-11-18 13:55:24,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:55:24" (1/1) ... [2018-11-18 13:55:24,694 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:55:24,744 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:55:25,016 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:55:25,020 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:55:25,096 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:55:25,115 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:55:25,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:25 WrapperNode [2018-11-18 13:55:25,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:55:25,116 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:55:25,116 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:55:25,116 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:55:25,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:25" (1/1) ... [2018-11-18 13:55:25,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:25" (1/1) ... [2018-11-18 13:55:25,210 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:55:25,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:55:25,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:55:25,211 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:55:25,221 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:25" (1/1) ... [2018-11-18 13:55:25,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:25" (1/1) ... [2018-11-18 13:55:25,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:25" (1/1) ... [2018-11-18 13:55:25,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:25" (1/1) ... [2018-11-18 13:55:25,273 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:25" (1/1) ... [2018-11-18 13:55:25,298 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:25" (1/1) ... [2018-11-18 13:55:25,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:25" (1/1) ... [2018-11-18 13:55:25,313 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:55:25,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:55:25,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:55:25,314 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:55:25,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0a224cd3-f090-45c4-a259-cde987f0f9e9/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 [2018-11-18 13:55:25,365 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 13:55:25,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 13:55:25,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 13:55:25,365 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-18 13:55:25,365 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-18 13:55:25,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:55:25,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:55:25,365 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 13:55:25,365 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 13:55:26,879 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:55:26,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:55:26 BoogieIcfgContainer [2018-11-18 13:55:26,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:55:26,881 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 13:55:26,881 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 13:55:26,883 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 13:55:26,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:55:24" (1/3) ... [2018-11-18 13:55:26,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@184bc118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:55:26, skipping insertion in model container [2018-11-18 13:55:26,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:25" (2/3) ... [2018-11-18 13:55:26,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@184bc118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:55:26, skipping insertion in model container [2018-11-18 13:55:26,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:55:26" (3/3) ... [2018-11-18 13:55:26,886 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label59_true-unreach-call_false-termination.c [2018-11-18 13:55:26,894 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 13:55:26,899 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 13:55:26,908 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 13:55:26,931 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 13:55:26,931 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 13:55:26,931 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 13:55:26,931 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:55:26,932 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:55:26,932 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 13:55:26,932 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:55:26,932 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 13:55:26,949 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-11-18 13:55:26,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-18 13:55:26,955 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:55:26,956 INFO L375 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] [2018-11-18 13:55:26,958 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:55:26,962 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:55:26,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1120901496, now seen corresponding path program 1 times [2018-11-18 13:55:26,964 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:55:27,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:55:27,000 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:55:27,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:55:27,000 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:55:27,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:55:27,388 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-18 13:55:27,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:55:27,447 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:55:27,447 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 13:55:27,448 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:55:27,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 13:55:27,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:55:27,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:55:27,469 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 3 states. [2018-11-18 13:55:28,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:55:28,264 INFO L93 Difference]: Finished difference Result 550 states and 941 transitions. [2018-11-18 13:55:28,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:55:28,265 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 96 [2018-11-18 13:55:28,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:55:28,277 INFO L225 Difference]: With dead ends: 550 [2018-11-18 13:55:28,277 INFO L226 Difference]: Without dead ends: 340 [2018-11-18 13:55:28,281 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:55:28,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2018-11-18 13:55:28,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2018-11-18 13:55:28,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-11-18 13:55:28,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 562 transitions. [2018-11-18 13:55:28,327 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 562 transitions. Word has length 96 [2018-11-18 13:55:28,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:55:28,328 INFO L480 AbstractCegarLoop]: Abstraction has 340 states and 562 transitions. [2018-11-18 13:55:28,329 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 13:55:28,329 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 562 transitions. [2018-11-18 13:55:28,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-11-18 13:55:28,332 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:55:28,332 INFO L375 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] [2018-11-18 13:55:28,333 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:55:28,333 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:55:28,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1268335513, now seen corresponding path program 1 times [2018-11-18 13:55:28,333 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:55:28,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:55:28,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:55:28,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:55:28,334 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:55:28,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:55:28,440 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:55:28,441 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:55:28,441 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 13:55:28,441 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:55:28,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 13:55:28,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 13:55:28,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 13:55:28,443 INFO L87 Difference]: Start difference. First operand 340 states and 562 transitions. Second operand 6 states. [2018-11-18 13:55:29,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:55:29,142 INFO L93 Difference]: Finished difference Result 888 states and 1491 transitions. [2018-11-18 13:55:29,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 13:55:29,143 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 107 [2018-11-18 13:55:29,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:55:29,147 INFO L225 Difference]: With dead ends: 888 [2018-11-18 13:55:29,147 INFO L226 Difference]: Without dead ends: 554 [2018-11-18 13:55:29,149 INFO L604 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 [2018-11-18 13:55:29,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2018-11-18 13:55:29,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 539. [2018-11-18 13:55:29,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2018-11-18 13:55:29,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 827 transitions. [2018-11-18 13:55:29,170 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 827 transitions. Word has length 107 [2018-11-18 13:55:29,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:55:29,170 INFO L480 AbstractCegarLoop]: Abstraction has 539 states and 827 transitions. [2018-11-18 13:55:29,171 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 13:55:29,171 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 827 transitions. [2018-11-18 13:55:29,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-11-18 13:55:29,174 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:55:29,174 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:55:29,174 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:55:29,174 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:55:29,175 INFO L82 PathProgramCache]: Analyzing trace with hash 147584699, now seen corresponding path program 1 times [2018-11-18 13:55:29,175 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:55:29,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:55:29,176 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:55:29,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:55:29,176 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:55:29,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:55:29,352 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:55:29,353 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:55:29,353 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:55:29,353 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2018-11-18 13:55:29,355 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [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], [405], [407], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 13:55:29,386 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:55:29,386 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:55:29,998 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 13:55:30,000 INFO L272 AbstractInterpreter]: Visited 100 different actions 192 times. Merged at 4 different actions 4 times. Never widened. Performed 2778 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2778 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-11-18 13:55:30,042 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:55:30,044 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 13:55:30,044 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:55:30,044 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0a224cd3-f090-45c4-a259-cde987f0f9e9/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 [2018-11-18 13:55:30,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:55:30,056 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 13:55:30,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:55:30,150 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:55:30,244 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:55:30,244 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:55:30,327 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:55:30,343 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-18 13:55:30,343 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 9 [2018-11-18 13:55:30,343 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:55:30,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 13:55:30,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:55:30,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-18 13:55:30,344 INFO L87 Difference]: Start difference. First operand 539 states and 827 transitions. Second operand 3 states. [2018-11-18 13:55:30,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:55:30,960 INFO L93 Difference]: Finished difference Result 1530 states and 2434 transitions. [2018-11-18 13:55:30,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:55:30,973 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 108 [2018-11-18 13:55:30,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:55:30,977 INFO L225 Difference]: With dead ends: 1530 [2018-11-18 13:55:30,977 INFO L226 Difference]: Without dead ends: 997 [2018-11-18 13:55:30,978 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 216 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-18 13:55:30,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2018-11-18 13:55:31,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 997. [2018-11-18 13:55:31,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 997 states. [2018-11-18 13:55:31,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1433 transitions. [2018-11-18 13:55:31,012 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1433 transitions. Word has length 108 [2018-11-18 13:55:31,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:55:31,012 INFO L480 AbstractCegarLoop]: Abstraction has 997 states and 1433 transitions. [2018-11-18 13:55:31,012 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 13:55:31,012 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1433 transitions. [2018-11-18 13:55:31,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-11-18 13:55:31,017 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:55:31,017 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-18 13:55:31,018 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:55:31,018 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:55:31,018 INFO L82 PathProgramCache]: Analyzing trace with hash 239071535, now seen corresponding path program 1 times [2018-11-18 13:55:31,018 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:55:31,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:55:31,019 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:55:31,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:55:31,019 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:55:31,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:55:31,302 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-18 13:55:31,369 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:55:31,370 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:55:31,370 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 13:55:31,370 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:55:31,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 13:55:31,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:55:31,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:55:31,371 INFO L87 Difference]: Start difference. First operand 997 states and 1433 transitions. Second operand 3 states. [2018-11-18 13:55:32,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:55:32,703 INFO L93 Difference]: Finished difference Result 2438 states and 3658 transitions. [2018-11-18 13:55:32,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:55:32,704 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 114 [2018-11-18 13:55:32,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:55:32,709 INFO L225 Difference]: With dead ends: 2438 [2018-11-18 13:55:32,709 INFO L226 Difference]: Without dead ends: 1447 [2018-11-18 13:55:32,711 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:55:32,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1447 states. [2018-11-18 13:55:32,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1447 to 1447. [2018-11-18 13:55:32,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1447 states. [2018-11-18 13:55:32,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1447 states to 1447 states and 2086 transitions. [2018-11-18 13:55:32,736 INFO L78 Accepts]: Start accepts. Automaton has 1447 states and 2086 transitions. Word has length 114 [2018-11-18 13:55:32,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:55:32,737 INFO L480 AbstractCegarLoop]: Abstraction has 1447 states and 2086 transitions. [2018-11-18 13:55:32,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 13:55:32,737 INFO L276 IsEmpty]: Start isEmpty. Operand 1447 states and 2086 transitions. [2018-11-18 13:55:32,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-11-18 13:55:32,740 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:55:32,741 INFO L375 BasicCegarLoop]: trace histogram [2, 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] [2018-11-18 13:55:32,741 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:55:32,741 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:55:32,741 INFO L82 PathProgramCache]: Analyzing trace with hash -921247969, now seen corresponding path program 1 times [2018-11-18 13:55:32,741 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:55:32,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:55:32,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:55:32,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:55:32,742 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:55:32,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:55:32,834 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:55:32,834 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:55:32,834 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 13:55:32,834 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:55:32,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 13:55:32,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 13:55:32,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 13:55:32,835 INFO L87 Difference]: Start difference. First operand 1447 states and 2086 transitions. Second operand 6 states. [2018-11-18 13:55:33,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:55:33,306 INFO L93 Difference]: Finished difference Result 3031 states and 4481 transitions. [2018-11-18 13:55:33,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 13:55:33,307 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 122 [2018-11-18 13:55:33,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:55:33,314 INFO L225 Difference]: With dead ends: 3031 [2018-11-18 13:55:33,314 INFO L226 Difference]: Without dead ends: 1590 [2018-11-18 13:55:33,319 INFO L604 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 [2018-11-18 13:55:33,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1590 states. [2018-11-18 13:55:33,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1590 to 1540. [2018-11-18 13:55:33,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1540 states. [2018-11-18 13:55:33,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1540 states to 1540 states and 1980 transitions. [2018-11-18 13:55:33,354 INFO L78 Accepts]: Start accepts. Automaton has 1540 states and 1980 transitions. Word has length 122 [2018-11-18 13:55:33,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:55:33,355 INFO L480 AbstractCegarLoop]: Abstraction has 1540 states and 1980 transitions. [2018-11-18 13:55:33,355 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 13:55:33,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1540 states and 1980 transitions. [2018-11-18 13:55:33,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-11-18 13:55:33,357 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:55:33,358 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 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] [2018-11-18 13:55:33,358 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:55:33,358 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:55:33,358 INFO L82 PathProgramCache]: Analyzing trace with hash 992756807, now seen corresponding path program 1 times [2018-11-18 13:55:33,358 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:55:33,359 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:55:33,359 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:55:33,359 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:55:33,359 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:55:33,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:55:33,434 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:55:33,434 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:55:33,434 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 13:55:33,434 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:55:33,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 13:55:33,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:55:33,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:55:33,435 INFO L87 Difference]: Start difference. First operand 1540 states and 1980 transitions. Second operand 3 states. [2018-11-18 13:55:33,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:55:33,795 INFO L93 Difference]: Finished difference Result 4456 states and 5895 transitions. [2018-11-18 13:55:33,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:55:33,796 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 123 [2018-11-18 13:55:33,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:55:33,805 INFO L225 Difference]: With dead ends: 4456 [2018-11-18 13:55:33,805 INFO L226 Difference]: Without dead ends: 2922 [2018-11-18 13:55:33,811 INFO L604 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 [2018-11-18 13:55:33,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states. [2018-11-18 13:55:33,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 2914. [2018-11-18 13:55:33,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2914 states. [2018-11-18 13:55:33,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 3698 transitions. [2018-11-18 13:55:33,868 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 3698 transitions. Word has length 123 [2018-11-18 13:55:33,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:55:33,869 INFO L480 AbstractCegarLoop]: Abstraction has 2914 states and 3698 transitions. [2018-11-18 13:55:33,869 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 13:55:33,869 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 3698 transitions. [2018-11-18 13:55:33,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2018-11-18 13:55:33,876 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:55:33,876 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 13:55:33,876 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:55:33,876 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:55:33,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1305738925, now seen corresponding path program 1 times [2018-11-18 13:55:33,876 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:55:33,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:55:33,877 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:55:33,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:55:33,877 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:55:33,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:55:34,005 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 55 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:55:34,005 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:55:34,005 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:55:34,006 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 161 with the following transitions: [2018-11-18 13:55:34,006 INFO L202 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], [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], [225], [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], [405], [407], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 13:55:34,009 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:55:34,009 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:55:34,235 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 13:55:34,235 INFO L272 AbstractInterpreter]: Visited 100 different actions 193 times. Merged at 5 different actions 5 times. Never widened. Performed 2720 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2720 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-11-18 13:55:34,238 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:55:34,238 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 13:55:34,238 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:55:34,238 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0a224cd3-f090-45c4-a259-cde987f0f9e9/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 [2018-11-18 13:55:34,248 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:55:34,249 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 13:55:34,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:55:34,301 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:55:34,343 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:55:34,343 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:55:34,401 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:55:34,447 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-18 13:55:34,447 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-11-18 13:55:34,447 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:55:34,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 13:55:34,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:55:34,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-18 13:55:34,448 INFO L87 Difference]: Start difference. First operand 2914 states and 3698 transitions. Second operand 3 states. [2018-11-18 13:55:34,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:55:34,924 INFO L93 Difference]: Finished difference Result 8438 states and 10858 transitions. [2018-11-18 13:55:34,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:55:34,925 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2018-11-18 13:55:34,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:55:34,926 INFO L225 Difference]: With dead ends: 8438 [2018-11-18 13:55:34,926 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 13:55:34,941 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 320 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-18 13:55:34,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 13:55:34,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 13:55:34,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 13:55:34,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 13:55:34,942 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 160 [2018-11-18 13:55:34,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:55:34,942 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 13:55:34,942 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 13:55:34,943 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 13:55:34,943 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 13:55:34,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 13:55:35,000 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:55:35,001 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:55:35,004 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:55:35,020 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:55:35,022 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:55:35,025 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:55:35,306 WARN L180 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 30 [2018-11-18 13:55:35,382 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 13:55:35,383 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(~a8~0)| ~a8~0) (= |old(~a16~0)| ~a16~0)) [2018-11-18 13:55:35,383 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:55:35,383 INFO L425 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2018-11-18 13:55:35,383 INFO L425 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2018-11-18 13:55:35,383 INFO L425 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,383 INFO L425 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,383 INFO L425 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,383 INFO L425 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,383 INFO L425 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,383 INFO L425 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,383 INFO L425 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2018-11-18 13:55:35,383 INFO L425 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2018-11-18 13:55:35,383 INFO L425 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2018-11-18 13:55:35,383 INFO L425 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2018-11-18 13:55:35,383 INFO L425 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2018-11-18 13:55:35,383 INFO L425 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2018-11-18 13:55:35,383 INFO L425 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2018-11-18 13:55:35,384 INFO L425 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2018-11-18 13:55:35,384 INFO L425 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2018-11-18 13:55:35,384 INFO L425 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2018-11-18 13:55:35,384 INFO L425 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,384 INFO L425 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,384 INFO L425 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,384 INFO L425 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,384 INFO L425 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,384 INFO L425 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,384 INFO L425 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2018-11-18 13:55:35,384 INFO L425 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2018-11-18 13:55:35,384 INFO L425 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2018-11-18 13:55:35,384 INFO L425 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2018-11-18 13:55:35,384 INFO L425 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2018-11-18 13:55:35,384 INFO L425 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2018-11-18 13:55:35,384 INFO L425 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2018-11-18 13:55:35,384 INFO L425 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2018-11-18 13:55:35,384 INFO L425 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2018-11-18 13:55:35,384 INFO L425 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2018-11-18 13:55:35,384 INFO L425 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2018-11-18 13:55:35,384 INFO L425 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2018-11-18 13:55:35,384 INFO L425 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2018-11-18 13:55:35,385 INFO L425 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2018-11-18 13:55:35,385 INFO L425 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2018-11-18 13:55:35,385 INFO L425 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,385 INFO L425 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,385 INFO L425 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,385 INFO L425 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,385 INFO L425 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,385 INFO L425 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2018-11-18 13:55:35,385 INFO L425 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2018-11-18 13:55:35,385 INFO L425 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2018-11-18 13:55:35,385 INFO L425 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2018-11-18 13:55:35,385 INFO L425 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2018-11-18 13:55:35,385 INFO L425 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2018-11-18 13:55:35,385 INFO L425 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2018-11-18 13:55:35,385 INFO L425 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2018-11-18 13:55:35,386 INFO L425 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2018-11-18 13:55:35,386 INFO L425 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,386 INFO L425 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,386 INFO L425 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,386 INFO L425 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,386 INFO L425 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,386 INFO L425 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2018-11-18 13:55:35,386 INFO L425 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2018-11-18 13:55:35,386 INFO L425 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2018-11-18 13:55:35,386 INFO L425 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2018-11-18 13:55:35,386 INFO L425 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2018-11-18 13:55:35,386 INFO L425 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2018-11-18 13:55:35,386 INFO L425 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2018-11-18 13:55:35,386 INFO L425 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2018-11-18 13:55:35,387 INFO L425 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2018-11-18 13:55:35,387 INFO L425 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2018-11-18 13:55:35,387 INFO L425 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2018-11-18 13:55:35,387 INFO L425 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2018-11-18 13:55:35,387 INFO L425 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2018-11-18 13:55:35,387 INFO L425 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,387 INFO L425 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,387 INFO L425 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,387 INFO L425 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,387 INFO L425 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,387 INFO L425 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2018-11-18 13:55:35,387 INFO L425 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2018-11-18 13:55:35,388 INFO L425 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2018-11-18 13:55:35,388 INFO L425 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2018-11-18 13:55:35,388 INFO L425 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2018-11-18 13:55:35,388 INFO L425 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2018-11-18 13:55:35,388 INFO L425 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2018-11-18 13:55:35,388 INFO L425 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2018-11-18 13:55:35,388 INFO L425 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2018-11-18 13:55:35,388 INFO L425 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,388 INFO L425 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,388 INFO L425 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,388 INFO L425 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,388 INFO L425 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,389 INFO L425 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,389 INFO L425 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2018-11-18 13:55:35,389 INFO L425 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,389 INFO L425 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2018-11-18 13:55:35,389 INFO L425 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2018-11-18 13:55:35,389 INFO L425 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2018-11-18 13:55:35,389 INFO L425 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2018-11-18 13:55:35,389 INFO L425 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2018-11-18 13:55:35,389 INFO L425 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2018-11-18 13:55:35,389 INFO L425 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2018-11-18 13:55:35,389 INFO L425 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2018-11-18 13:55:35,389 INFO L425 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2018-11-18 13:55:35,389 INFO L425 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2018-11-18 13:55:35,389 INFO L425 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2018-11-18 13:55:35,389 INFO L425 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2018-11-18 13:55:35,389 INFO L425 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2018-11-18 13:55:35,389 INFO L425 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,389 INFO L425 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,389 INFO L425 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,389 INFO L425 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,389 INFO L425 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,389 INFO L425 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2018-11-18 13:55:35,389 INFO L425 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2018-11-18 13:55:35,390 INFO L425 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2018-11-18 13:55:35,390 INFO L425 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2018-11-18 13:55:35,390 INFO L425 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2018-11-18 13:55:35,390 INFO L425 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2018-11-18 13:55:35,390 INFO L425 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2018-11-18 13:55:35,390 INFO L425 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2018-11-18 13:55:35,390 INFO L425 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,390 INFO L425 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,390 INFO L425 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,390 INFO L425 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,390 INFO L425 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,390 INFO L425 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2018-11-18 13:55:35,390 INFO L425 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2018-11-18 13:55:35,390 INFO L425 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2018-11-18 13:55:35,390 INFO L425 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2018-11-18 13:55:35,390 INFO L425 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2018-11-18 13:55:35,390 INFO L425 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2018-11-18 13:55:35,390 INFO L425 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2018-11-18 13:55:35,391 INFO L425 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2018-11-18 13:55:35,391 INFO L425 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2018-11-18 13:55:35,391 INFO L425 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 443) no Hoare annotation was computed. [2018-11-18 13:55:35,391 INFO L425 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2018-11-18 13:55:35,391 INFO L421 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse0 (< 0 |old(~a17~0)|)) (.cse2 (= 1 |old(~a20~0)|)) (.cse1 (and (= |old(~a8~0)| ~a8~0) (= |old(~a16~0)| ~a16~0)))) (and (or (<= ~a17~0 0) .cse0) (or .cse1 .cse0) (or (not (= 1 ~a20~0)) .cse2) (or .cse1 .cse2) (or (= 4 |old(~a16~0)|) .cse1) (or .cse1 (= 15 |old(~a8~0)|)))) [2018-11-18 13:55:35,391 INFO L425 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2018-11-18 13:55:35,391 INFO L425 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,391 INFO L425 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,391 INFO L425 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,392 INFO L425 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,392 INFO L425 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2018-11-18 13:55:35,392 INFO L425 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,392 INFO L425 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,392 INFO L425 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2018-11-18 13:55:35,392 INFO L425 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2018-11-18 13:55:35,392 INFO L425 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2018-11-18 13:55:35,392 INFO L425 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2018-11-18 13:55:35,392 INFO L425 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2018-11-18 13:55:35,392 INFO L425 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2018-11-18 13:55:35,392 INFO L425 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2018-11-18 13:55:35,392 INFO L425 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2018-11-18 13:55:35,392 INFO L425 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2018-11-18 13:55:35,392 INFO L425 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2018-11-18 13:55:35,392 INFO L425 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2018-11-18 13:55:35,392 INFO L425 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2018-11-18 13:55:35,392 INFO L425 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,392 INFO L425 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,392 INFO L425 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,392 INFO L425 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,393 INFO L425 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,393 INFO L425 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2018-11-18 13:55:35,393 INFO L425 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,393 INFO L425 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2018-11-18 13:55:35,393 INFO L425 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2018-11-18 13:55:35,393 INFO L425 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2018-11-18 13:55:35,393 INFO L425 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2018-11-18 13:55:35,393 INFO L425 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2018-11-18 13:55:35,393 INFO L425 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2018-11-18 13:55:35,393 INFO L425 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2018-11-18 13:55:35,393 INFO L425 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2018-11-18 13:55:35,393 INFO L425 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2018-11-18 13:55:35,394 INFO L425 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2018-11-18 13:55:35,394 INFO L425 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2018-11-18 13:55:35,394 INFO L425 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2018-11-18 13:55:35,394 INFO L425 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2018-11-18 13:55:35,394 INFO L425 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2018-11-18 13:55:35,394 INFO L425 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,394 INFO L425 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,394 INFO L425 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,394 INFO L425 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,394 INFO L425 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,394 INFO L425 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:55:35,394 INFO L425 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2018-11-18 13:55:35,394 INFO L425 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2018-11-18 13:55:35,395 INFO L425 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2018-11-18 13:55:35,395 INFO L425 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2018-11-18 13:55:35,395 INFO L425 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2018-11-18 13:55:35,395 INFO L425 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2018-11-18 13:55:35,395 INFO L425 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2018-11-18 13:55:35,395 INFO L425 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2018-11-18 13:55:35,395 INFO L425 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2018-11-18 13:55:35,395 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2018-11-18 13:55:35,395 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:55:35,395 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (not (= ~a16~0 6)) (not (= ~a8~0 13)) (not (= ~a16~0 4))) [2018-11-18 13:55:35,395 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 13:55:35,395 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 13:55:35,396 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (= 6 |old(~a16~0)|) (= 4 |old(~a16~0)|) (and (= |old(~a8~0)| ~a8~0) (= |old(~a16~0)| ~a16~0)) (= 13 |old(~a8~0)|)) [2018-11-18 13:55:35,396 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2018-11-18 13:55:35,396 INFO L421 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (or (not (= ~a8~0 15)) (= 6 |old(~a16~0)|) (<= ~a17~0 0) (= 13 |old(~a8~0)|) (= 4 |old(~a16~0)|) (not (= 1 ~a20~0)) (not (= ~a16~0 4))) [2018-11-18 13:55:35,396 INFO L425 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2018-11-18 13:55:35,396 INFO L425 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2018-11-18 13:55:35,396 INFO L425 ceAbstractionStarter]: For program point L583-1(lines 583 593) no Hoare annotation was computed. [2018-11-18 13:55:35,396 INFO L421 ceAbstractionStarter]: At program point L583-3(lines 583 593) the Hoare annotation is: (or (not (= ~a8~0 15)) (= 6 |old(~a16~0)|) (<= ~a17~0 0) (= 13 |old(~a8~0)|) (= 4 |old(~a16~0)|) (not (= 1 ~a20~0)) (not (= ~a16~0 4))) [2018-11-18 13:55:35,396 INFO L425 ceAbstractionStarter]: For program point L583-4(lines 577 594) no Hoare annotation was computed. [2018-11-18 13:55:35,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 01:55:35 BoogieIcfgContainer [2018-11-18 13:55:35,407 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 13:55:35,407 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:55:35,407 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:55:35,407 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:55:35,408 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:55:26" (3/4) ... [2018-11-18 13:55:35,410 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 13:55:35,415 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 13:55:35,415 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-18 13:55:35,415 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 13:55:35,425 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 13:55:35,425 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 13:55:35,444 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(a8 == 15) || 6 == \old(a16)) || a17 <= 0) || 13 == \old(a8)) || 4 == \old(a16)) || !(1 == a20)) || !(a16 == 4) [2018-11-18 13:55:35,513 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0a224cd3-f090-45c4-a259-cde987f0f9e9/bin-2019/utaipan/witness.graphml [2018-11-18 13:55:35,514 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:55:35,514 INFO L168 Benchmark]: Toolchain (without parser) took 10833.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 199.8 MB). Free memory was 956.4 MB in the beginning and 930.8 MB in the end (delta: 25.6 MB). Peak memory consumption was 225.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:55:35,515 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:55:35,515 INFO L168 Benchmark]: CACSL2BoogieTranslator took 433.56 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 918.9 MB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2018-11-18 13:55:35,515 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.74 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.1 MB). Free memory was 918.9 MB in the beginning and 1.1 GB in the end (delta: -165.9 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. [2018-11-18 13:55:35,516 INFO L168 Benchmark]: Boogie Preprocessor took 102.79 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. [2018-11-18 13:55:35,516 INFO L168 Benchmark]: RCFGBuilder took 1566.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 973.3 MB in the end (delta: 106.0 MB). Peak memory consumption was 106.0 MB. Max. memory is 11.5 GB. [2018-11-18 13:55:35,516 INFO L168 Benchmark]: TraceAbstraction took 8526.40 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 110.6 MB). Free memory was 973.3 MB in the beginning and 945.6 MB in the end (delta: 27.7 MB). Peak memory consumption was 138.3 MB. Max. memory is 11.5 GB. [2018-11-18 13:55:35,517 INFO L168 Benchmark]: Witness Printer took 106.52 ms. Allocated memory is still 1.2 GB. Free memory was 945.6 MB in the beginning and 930.8 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2018-11-18 13:55:35,518 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 433.56 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 918.9 MB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 94.74 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.1 MB). Free memory was 918.9 MB in the beginning and 1.1 GB in the end (delta: -165.9 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 102.79 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 1566.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 973.3 MB in the end (delta: 106.0 MB). Peak memory consumption was 106.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8526.40 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 110.6 MB). Free memory was 973.3 MB in the beginning and 945.6 MB in the end (delta: 27.7 MB). Peak memory consumption was 138.3 MB. Max. memory is 11.5 GB. * Witness Printer took 106.52 ms. Allocated memory is still 1.2 GB. Free memory was 945.6 MB in the beginning and 930.8 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 443]: 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: (((((!(a8 == 15) || 6 == \old(a16)) || a17 <= 0) || 13 == \old(a8)) || 4 == \old(a16)) || !(1 == a20)) || !(a16 == 4) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. SAFE Result, 8.4s OverallTime, 7 OverallIterations, 2 TraceHistogramMax, 4.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 1593 SDtfs, 2383 SDslu, 433 SDs, 0 SdLazy, 3704 SolverSat, 894 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 587 GetRequests, 548 SyntacticMatches, 9 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2914occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.9s AbstIntTime, 2 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 73 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 89 PreInvPairs, 159 NumberOfFragments, 150 HoareAnnotationTreeSize, 89 FomulaSimplifications, 2436 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1455 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1098 NumberOfCodeBlocks, 1098 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1355 ConstructedInterpolants, 0 QuantifiedInterpolants, 529190 SizeOfPredicates, 4 NumberOfNonLiveVariables, 736 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 268/280 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...