./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label25_true-unreach-call.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_9417cbb6-9691-44e2-83a3-49ee08a09bd6/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9417cbb6-9691-44e2-83a3-49ee08a09bd6/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9417cbb6-9691-44e2-83a3-49ee08a09bd6/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9417cbb6-9691-44e2-83a3-49ee08a09bd6/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label25_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9417cbb6-9691-44e2-83a3-49ee08a09bd6/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9417cbb6-9691-44e2-83a3-49ee08a09bd6/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 23f7450b399d10b1ac0a8f247ff41c3f7806d83a .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 12:01:58,776 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:01:58,777 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:01:58,786 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:01:58,787 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:01:58,788 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:01:58,789 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:01:58,790 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:01:58,791 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:01:58,792 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:01:58,792 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:01:58,792 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:01:58,793 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:01:58,794 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:01:58,794 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:01:58,795 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:01:58,795 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:01:58,797 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:01:58,798 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:01:58,799 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:01:58,800 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:01:58,801 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:01:58,803 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:01:58,803 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:01:58,803 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:01:58,804 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:01:58,805 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:01:58,806 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:01:58,806 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:01:58,807 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:01:58,807 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:01:58,808 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:01:58,809 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:01:58,809 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:01:58,809 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:01:58,810 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:01:58,810 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9417cbb6-9691-44e2-83a3-49ee08a09bd6/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 12:01:58,819 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:01:58,820 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:01:58,820 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:01:58,820 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 12:01:58,820 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 12:01:58,821 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 12:01:58,821 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 12:01:58,821 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 12:01:58,821 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 12:01:58,821 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 12:01:58,821 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 12:01:58,821 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 12:01:58,821 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 12:01:58,822 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:01:58,822 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:01:58,822 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:01:58,822 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:01:58,822 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:01:58,822 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:01:58,822 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:01:58,823 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:01:58,823 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:01:58,823 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:01:58,823 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:01:58,823 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:01:58,823 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:01:58,823 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:01:58,823 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:01:58,826 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:01:58,826 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:01:58,826 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:01:58,826 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:01:58,826 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:01:58,826 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 12:01:58,826 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:01:58,826 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:01:58,827 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 12:01:58,827 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_9417cbb6-9691-44e2-83a3-49ee08a09bd6/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 -> 23f7450b399d10b1ac0a8f247ff41c3f7806d83a [2018-11-18 12:01:58,851 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:01:58,865 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:01:58,867 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:01:58,869 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:01:58,869 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:01:58,870 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9417cbb6-9691-44e2-83a3-49ee08a09bd6/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem10_label25_true-unreach-call.c [2018-11-18 12:01:58,912 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9417cbb6-9691-44e2-83a3-49ee08a09bd6/bin-2019/utaipan/data/88c3adac9/279e2097fe814e63a66fe96190ebaa74/FLAG755fde73b [2018-11-18 12:01:59,323 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:01:59,324 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9417cbb6-9691-44e2-83a3-49ee08a09bd6/sv-benchmarks/c/eca-rers2012/Problem10_label25_true-unreach-call.c [2018-11-18 12:01:59,336 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9417cbb6-9691-44e2-83a3-49ee08a09bd6/bin-2019/utaipan/data/88c3adac9/279e2097fe814e63a66fe96190ebaa74/FLAG755fde73b [2018-11-18 12:01:59,674 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9417cbb6-9691-44e2-83a3-49ee08a09bd6/bin-2019/utaipan/data/88c3adac9/279e2097fe814e63a66fe96190ebaa74 [2018-11-18 12:01:59,677 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:01:59,678 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:01:59,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:01:59,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:01:59,682 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:01:59,682 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:01:59" (1/1) ... [2018-11-18 12:01:59,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6180e9b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:01:59, skipping insertion in model container [2018-11-18 12:01:59,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:01:59" (1/1) ... [2018-11-18 12:01:59,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:01:59,735 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:02:00,007 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:02:00,010 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:02:00,106 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:02:00,119 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:02:00,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:00 WrapperNode [2018-11-18 12:02:00,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:02:00,120 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:02:00,120 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:02:00,120 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:02:00,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:00" (1/1) ... [2018-11-18 12:02:00,203 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:00" (1/1) ... [2018-11-18 12:02:00,210 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:02:00,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:02:00,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:02:00,211 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:02:00,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:00" (1/1) ... [2018-11-18 12:02:00,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:00" (1/1) ... [2018-11-18 12:02:00,222 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:00" (1/1) ... [2018-11-18 12:02:00,222 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:00" (1/1) ... [2018-11-18 12:02:00,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:00" (1/1) ... [2018-11-18 12:02:00,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:00" (1/1) ... [2018-11-18 12:02:00,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:00" (1/1) ... [2018-11-18 12:02:00,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:02:00,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:02:00,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:02:00,270 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:02:00,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9417cbb6-9691-44e2-83a3-49ee08a09bd6/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 12:02:00,332 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 12:02:00,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:02:00,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:02:00,333 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-18 12:02:00,333 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-18 12:02:00,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:02:00,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:02:00,333 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:02:00,333 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:02:01,887 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:02:01,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:02:01 BoogieIcfgContainer [2018-11-18 12:02:01,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:02:01,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:02:01,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:02:01,891 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:02:01,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:01:59" (1/3) ... [2018-11-18 12:02:01,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@efe62b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:02:01, skipping insertion in model container [2018-11-18 12:02:01,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:00" (2/3) ... [2018-11-18 12:02:01,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@efe62b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:02:01, skipping insertion in model container [2018-11-18 12:02:01,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:02:01" (3/3) ... [2018-11-18 12:02:01,894 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label25_true-unreach-call.c [2018-11-18 12:02:01,900 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:02:01,906 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:02:01,919 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:02:01,958 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:02:01,958 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:02:01,958 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:02:01,958 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:02:01,958 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:02:01,959 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:02:01,959 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:02:01,959 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:02:01,981 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-11-18 12:02:01,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-11-18 12:02:01,990 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:02:01,991 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] [2018-11-18 12:02:01,993 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:02:01,997 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:02:01,998 INFO L82 PathProgramCache]: Analyzing trace with hash 382760497, now seen corresponding path program 1 times [2018-11-18 12:02:01,999 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:02:02,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:02:02,041 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:02:02,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:02:02,042 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:02:02,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:02:02,381 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 12:02:02,383 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:02:02,383 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 12:02:02,383 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:02:02,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 12:02:02,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 12:02:02,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:02:02,405 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-11-18 12:02:03,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:02:03,187 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-11-18 12:02:03,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 12:02:03,189 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2018-11-18 12:02:03,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:02:03,202 INFO L225 Difference]: With dead ends: 574 [2018-11-18 12:02:03,202 INFO L226 Difference]: Without dead ends: 356 [2018-11-18 12:02:03,206 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 12:02:03,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-11-18 12:02:03,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-11-18 12:02:03,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-11-18 12:02:03,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 592 transitions. [2018-11-18 12:02:03,249 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 592 transitions. Word has length 71 [2018-11-18 12:02:03,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:02:03,250 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 592 transitions. [2018-11-18 12:02:03,250 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 12:02:03,250 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 592 transitions. [2018-11-18 12:02:03,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-11-18 12:02:03,255 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:02:03,256 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:02:03,256 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:02:03,256 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:02:03,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1446129720, now seen corresponding path program 1 times [2018-11-18 12:02:03,257 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:02:03,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:02:03,258 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:02:03,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:02:03,258 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:02:03,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:02:03,431 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:02:03,432 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:02:03,432 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 12:02:03,432 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:02:03,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:02:03,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:02:03,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:02:03,434 INFO L87 Difference]: Start difference. First operand 356 states and 592 transitions. Second operand 6 states. [2018-11-18 12:02:04,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:02:04,706 INFO L93 Difference]: Finished difference Result 1002 states and 1689 transitions. [2018-11-18 12:02:04,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 12:02:04,709 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 141 [2018-11-18 12:02:04,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:02:04,713 INFO L225 Difference]: With dead ends: 1002 [2018-11-18 12:02:04,713 INFO L226 Difference]: Without dead ends: 652 [2018-11-18 12:02:04,717 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 12:02:04,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2018-11-18 12:02:04,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 640. [2018-11-18 12:02:04,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 640 states. [2018-11-18 12:02:04,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 960 transitions. [2018-11-18 12:02:04,747 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 960 transitions. Word has length 141 [2018-11-18 12:02:04,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:02:04,747 INFO L480 AbstractCegarLoop]: Abstraction has 640 states and 960 transitions. [2018-11-18 12:02:04,747 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:02:04,747 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 960 transitions. [2018-11-18 12:02:04,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-11-18 12:02:04,752 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:02:04,752 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, 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] [2018-11-18 12:02:04,752 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:02:04,752 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:02:04,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1467562684, now seen corresponding path program 1 times [2018-11-18 12:02:04,753 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:02:04,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:02:04,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:02:04,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:02:04,754 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:02:04,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:02:04,953 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:02:04,953 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:02:04,953 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 12:02:04,954 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:02:04,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 12:02:04,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 12:02:04,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 12:02:04,955 INFO L87 Difference]: Start difference. First operand 640 states and 960 transitions. Second operand 4 states. [2018-11-18 12:02:07,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:02:07,390 INFO L93 Difference]: Finished difference Result 2128 states and 3336 transitions. [2018-11-18 12:02:07,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 12:02:07,392 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 151 [2018-11-18 12:02:07,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:02:07,397 INFO L225 Difference]: With dead ends: 2128 [2018-11-18 12:02:07,397 INFO L226 Difference]: Without dead ends: 904 [2018-11-18 12:02:07,403 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 12:02:07,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2018-11-18 12:02:07,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 904. [2018-11-18 12:02:07,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 904 states. [2018-11-18 12:02:07,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1277 transitions. [2018-11-18 12:02:07,447 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1277 transitions. Word has length 151 [2018-11-18 12:02:07,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:02:07,448 INFO L480 AbstractCegarLoop]: Abstraction has 904 states and 1277 transitions. [2018-11-18 12:02:07,448 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 12:02:07,448 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1277 transitions. [2018-11-18 12:02:07,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-11-18 12:02:07,452 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:02:07,452 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:02:07,452 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:02:07,453 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:02:07,453 INFO L82 PathProgramCache]: Analyzing trace with hash -774507349, now seen corresponding path program 1 times [2018-11-18 12:02:07,453 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:02:07,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:02:07,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:02:07,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:02:07,454 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:02:07,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:02:07,744 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:02:07,744 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:02:07,744 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 12:02:07,744 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:02:07,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:02:07,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:02:07,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:02:07,745 INFO L87 Difference]: Start difference. First operand 904 states and 1277 transitions. Second operand 6 states. [2018-11-18 12:02:08,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:02:08,466 INFO L93 Difference]: Finished difference Result 2127 states and 3078 transitions. [2018-11-18 12:02:08,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 12:02:08,467 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 194 [2018-11-18 12:02:08,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:02:08,473 INFO L225 Difference]: With dead ends: 2127 [2018-11-18 12:02:08,473 INFO L226 Difference]: Without dead ends: 1229 [2018-11-18 12:02:08,476 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-18 12:02:08,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2018-11-18 12:02:08,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1208. [2018-11-18 12:02:08,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1208 states. [2018-11-18 12:02:08,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1646 transitions. [2018-11-18 12:02:08,514 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1646 transitions. Word has length 194 [2018-11-18 12:02:08,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:02:08,514 INFO L480 AbstractCegarLoop]: Abstraction has 1208 states and 1646 transitions. [2018-11-18 12:02:08,514 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:02:08,515 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1646 transitions. [2018-11-18 12:02:08,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2018-11-18 12:02:08,519 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:02:08,519 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:02:08,520 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:02:08,520 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:02:08,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1703489504, now seen corresponding path program 1 times [2018-11-18 12:02:08,521 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:02:08,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:02:08,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:02:08,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:02:08,522 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:02:08,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:02:08,753 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 128 proven. 78 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 12:02:08,754 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:02:08,754 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:02:08,755 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 243 with the following transitions: [2018-11-18 12:02:08,756 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [546], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 12:02:08,791 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:02:08,791 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:02:09,106 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 12:02:09,107 INFO L272 AbstractInterpreter]: Visited 93 different actions 93 times. Never merged. Never widened. Performed 828 root evaluator evaluations with a maximum evaluation depth of 3. Performed 828 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 24 variables. [2018-11-18 12:02:09,148 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:02:09,148 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 12:02:09,610 INFO L227 lantSequenceWeakener]: Weakened 233 states. On average, predicates are now at 73.71% of their original sizes. [2018-11-18 12:02:09,610 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 12:02:09,735 INFO L415 sIntCurrentIteration]: We unified 241 AI predicates to 241 [2018-11-18 12:02:09,736 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 12:02:09,736 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 12:02:09,737 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2018-11-18 12:02:09,737 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:02:09,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:02:09,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:02:09,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:02:09,738 INFO L87 Difference]: Start difference. First operand 1208 states and 1646 transitions. Second operand 6 states. [2018-11-18 12:02:22,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:02:22,882 INFO L93 Difference]: Finished difference Result 2556 states and 3478 transitions. [2018-11-18 12:02:22,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 12:02:22,882 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 242 [2018-11-18 12:02:22,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:02:22,887 INFO L225 Difference]: With dead ends: 2556 [2018-11-18 12:02:22,887 INFO L226 Difference]: Without dead ends: 1354 [2018-11-18 12:02:22,890 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 242 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:02:22,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2018-11-18 12:02:22,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1352. [2018-11-18 12:02:22,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1352 states. [2018-11-18 12:02:22,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1796 transitions. [2018-11-18 12:02:22,921 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1796 transitions. Word has length 242 [2018-11-18 12:02:22,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:02:22,922 INFO L480 AbstractCegarLoop]: Abstraction has 1352 states and 1796 transitions. [2018-11-18 12:02:22,922 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:02:22,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1796 transitions. [2018-11-18 12:02:22,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2018-11-18 12:02:22,930 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:02:22,930 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-18 12:02:22,930 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:02:22,930 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:02:22,930 INFO L82 PathProgramCache]: Analyzing trace with hash -677086258, now seen corresponding path program 1 times [2018-11-18 12:02:22,931 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:02:22,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:02:22,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:02:22,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:02:22,932 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:02:22,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:02:23,626 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 266 proven. 82 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-11-18 12:02:23,626 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:02:23,626 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:02:23,627 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 314 with the following transitions: [2018-11-18 12:02:23,627 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [546], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 12:02:23,630 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:02:23,630 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:02:25,813 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 12:02:25,813 INFO L272 AbstractInterpreter]: Visited 98 different actions 386 times. Merged at 8 different actions 30 times. Never widened. Performed 3717 root evaluator evaluations with a maximum evaluation depth of 20. Performed 3717 inverse root evaluator evaluations with a maximum inverse evaluation depth of 20. Found 7 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 12:02:25,815 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:02:25,816 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 12:02:25,816 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:02:25,816 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9417cbb6-9691-44e2-83a3-49ee08a09bd6/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 12:02:25,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:02:25,825 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 12:02:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:02:25,919 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:02:26,139 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 350 proven. 2 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2018-11-18 12:02:26,139 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 12:02:26,429 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 18 [2018-11-18 12:02:26,754 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 266 proven. 82 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-11-18 12:02:26,774 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 12:02:26,775 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 18 [2018-11-18 12:02:26,775 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 12:02:26,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 12:02:26,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 12:02:26,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2018-11-18 12:02:26,776 INFO L87 Difference]: Start difference. First operand 1352 states and 1796 transitions. Second operand 17 states. [2018-11-18 12:02:26,941 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2018-11-18 12:02:28,994 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 15 [2018-11-18 12:02:30,887 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 30 [2018-11-18 12:02:32,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:02:32,642 INFO L93 Difference]: Finished difference Result 3850 states and 5531 transitions. [2018-11-18 12:02:32,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-11-18 12:02:32,643 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 313 [2018-11-18 12:02:32,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:02:32,653 INFO L225 Difference]: With dead ends: 3850 [2018-11-18 12:02:32,654 INFO L226 Difference]: Without dead ends: 2648 [2018-11-18 12:02:32,661 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 694 GetRequests, 647 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=550, Invalid=1612, Unknown=0, NotChecked=0, Total=2162 [2018-11-18 12:02:32,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2648 states. [2018-11-18 12:02:32,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2648 to 2574. [2018-11-18 12:02:32,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2574 states. [2018-11-18 12:02:32,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2574 states to 2574 states and 3287 transitions. [2018-11-18 12:02:32,740 INFO L78 Accepts]: Start accepts. Automaton has 2574 states and 3287 transitions. Word has length 313 [2018-11-18 12:02:32,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:02:32,740 INFO L480 AbstractCegarLoop]: Abstraction has 2574 states and 3287 transitions. [2018-11-18 12:02:32,740 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 12:02:32,741 INFO L276 IsEmpty]: Start isEmpty. Operand 2574 states and 3287 transitions. [2018-11-18 12:02:32,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2018-11-18 12:02:32,752 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:02:32,752 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:02:32,752 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:02:32,753 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:02:32,753 INFO L82 PathProgramCache]: Analyzing trace with hash 765572205, now seen corresponding path program 1 times [2018-11-18 12:02:32,753 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:02:32,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:02:32,755 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:02:32,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:02:32,755 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:02:32,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:02:33,576 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37 [2018-11-18 12:02:33,790 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 283 proven. 158 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 12:02:33,790 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:02:33,790 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:02:33,790 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 359 with the following transitions: [2018-11-18 12:02:33,792 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [546], [547], [551], [555], [559], [563], [566], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 12:02:33,795 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:02:33,795 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:02:35,520 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 12:02:35,520 INFO L272 AbstractInterpreter]: Visited 126 different actions 379 times. Merged at 8 different actions 25 times. Never widened. Performed 3923 root evaluator evaluations with a maximum evaluation depth of 20. Performed 3923 inverse root evaluator evaluations with a maximum inverse evaluation depth of 20. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 12:02:35,536 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:02:35,536 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 12:02:35,536 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:02:35,536 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9417cbb6-9691-44e2-83a3-49ee08a09bd6/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 12:02:35,544 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:02:35,545 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 12:02:35,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:02:35,620 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:02:56,244 WARN L180 SmtUtils]: Spent 20.23 s on a formula simplification. DAG size of input: 184 DAG size of output: 53 [2018-11-18 12:02:56,881 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 377 proven. 4 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2018-11-18 12:02:56,881 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 12:03:03,933 WARN L180 SmtUtils]: Spent 6.73 s on a formula simplification. DAG size of input: 187 DAG size of output: 22 [2018-11-18 12:03:04,107 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-11-18 12:03:04,149 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 26 [2018-11-18 12:03:04,541 WARN L180 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 42 [2018-11-18 12:03:04,544 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:04,580 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:04,626 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:04,661 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:04,697 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:04,758 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:04,816 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:04,854 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:04,888 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:04,922 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:04,958 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:04,991 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:05,045 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:05,082 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:05,116 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:05,165 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:05,204 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:05,243 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:05,286 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:05,323 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:05,370 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:05,404 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:05,438 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:05,474 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:05,509 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:05,544 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:05,658 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:05,729 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:05,770 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:05,802 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:05,835 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:05,866 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:05,937 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:05,990 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:06,026 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:06,099 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:06,163 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:06,198 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:06,234 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:06,275 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:06,319 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:06,355 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:06,395 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:06,429 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:06,465 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:06,501 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:06,546 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:06,590 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:06,625 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:06,661 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:06,697 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:06,734 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:06,771 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:06,807 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:06,842 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:06,884 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:07,057 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:07,160 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:07,195 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:07,232 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:07,268 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:07,315 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:07,350 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:07,384 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:07,444 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:07,477 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:07,509 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:07,545 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:07,579 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:07,613 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:07,647 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:07,705 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:07,740 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:07,773 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:07,815 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:07,848 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:07,883 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:07,930 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:07,964 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:08,013 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:08,054 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:08,125 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:08,179 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:08,214 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:08,249 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:08,286 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:08,321 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:08,359 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:08,422 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:08,484 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:08,529 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:08,560 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:08,672 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:08,703 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:08,733 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:08,764 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:08,819 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:08,853 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:08,891 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:08,925 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:08,960 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:08,994 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:09,029 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:09,065 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:09,140 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:09,184 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:09,236 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:09,278 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 12:03:09,852 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 202 proven. 239 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 12:03:09,868 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 12:03:09,868 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 25 [2018-11-18 12:03:09,868 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 12:03:09,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-18 12:03:09,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-18 12:03:09,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=493, Unknown=0, NotChecked=0, Total=600 [2018-11-18 12:03:09,870 INFO L87 Difference]: Start difference. First operand 2574 states and 3287 transitions. Second operand 18 states. [2018-11-18 12:03:27,195 WARN L180 SmtUtils]: Spent 12.67 s on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2018-11-18 12:03:27,960 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2018-11-18 12:03:29,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:03:29,156 INFO L93 Difference]: Finished difference Result 8851 states and 11937 transitions. [2018-11-18 12:03:29,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-11-18 12:03:29,157 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 358 [2018-11-18 12:03:29,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:03:29,177 INFO L225 Difference]: With dead ends: 8851 [2018-11-18 12:03:29,177 INFO L226 Difference]: Without dead ends: 6427 [2018-11-18 12:03:29,190 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 796 GetRequests, 627 SyntacticMatches, 111 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3363 ImplicationChecksByTransitivity, 47.6s TimeCoverageRelationStatistics Valid=776, Invalid=2764, Unknown=0, NotChecked=0, Total=3540 [2018-11-18 12:03:29,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6427 states. [2018-11-18 12:03:29,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6427 to 6205. [2018-11-18 12:03:29,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6205 states. [2018-11-18 12:03:29,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6205 states to 6205 states and 7791 transitions. [2018-11-18 12:03:29,323 INFO L78 Accepts]: Start accepts. Automaton has 6205 states and 7791 transitions. Word has length 358 [2018-11-18 12:03:29,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:03:29,324 INFO L480 AbstractCegarLoop]: Abstraction has 6205 states and 7791 transitions. [2018-11-18 12:03:29,324 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-18 12:03:29,324 INFO L276 IsEmpty]: Start isEmpty. Operand 6205 states and 7791 transitions. [2018-11-18 12:03:29,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2018-11-18 12:03:29,346 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:03:29,347 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:03:29,347 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:03:29,347 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:03:29,347 INFO L82 PathProgramCache]: Analyzing trace with hash 651085646, now seen corresponding path program 1 times [2018-11-18 12:03:29,347 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:03:29,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:03:29,350 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:03:29,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:03:29,350 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:03:29,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:03:29,644 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2018-11-18 12:03:29,644 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:03:29,644 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 12:03:29,644 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:03:29,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 12:03:29,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 12:03:29,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 12:03:29,645 INFO L87 Difference]: Start difference. First operand 6205 states and 7791 transitions. Second operand 4 states. [2018-11-18 12:03:30,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:03:30,583 INFO L93 Difference]: Finished difference Result 16052 states and 21197 transitions. [2018-11-18 12:03:30,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 12:03:30,584 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 377 [2018-11-18 12:03:30,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:03:30,613 INFO L225 Difference]: With dead ends: 16052 [2018-11-18 12:03:30,614 INFO L226 Difference]: Without dead ends: 9997 [2018-11-18 12:03:30,627 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 12:03:30,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9997 states. [2018-11-18 12:03:30,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9997 to 9992. [2018-11-18 12:03:30,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9992 states. [2018-11-18 12:03:30,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9992 states to 9992 states and 12723 transitions. [2018-11-18 12:03:30,817 INFO L78 Accepts]: Start accepts. Automaton has 9992 states and 12723 transitions. Word has length 377 [2018-11-18 12:03:30,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:03:30,818 INFO L480 AbstractCegarLoop]: Abstraction has 9992 states and 12723 transitions. [2018-11-18 12:03:30,818 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 12:03:30,818 INFO L276 IsEmpty]: Start isEmpty. Operand 9992 states and 12723 transitions. [2018-11-18 12:03:30,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2018-11-18 12:03:30,849 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:03:30,849 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-18 12:03:30,849 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:03:30,849 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:03:30,850 INFO L82 PathProgramCache]: Analyzing trace with hash -268100511, now seen corresponding path program 1 times [2018-11-18 12:03:30,850 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:03:30,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:03:30,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:03:30,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:03:30,851 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:03:30,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:03:31,376 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 269 proven. 89 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2018-11-18 12:03:31,376 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:03:31,376 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:03:31,377 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 397 with the following transitions: [2018-11-18 12:03:31,377 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [558], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [679], [683], [687], [691], [695], [699], [703], [706], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 12:03:31,380 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:03:31,380 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:03:31,561 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 12:03:31,561 INFO L272 AbstractInterpreter]: Visited 133 different actions 395 times. Merged at 8 different actions 20 times. Never widened. Performed 4197 root evaluator evaluations with a maximum evaluation depth of 18. Performed 4197 inverse root evaluator evaluations with a maximum inverse evaluation depth of 18. Found 4 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-18 12:03:31,583 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:03:31,584 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 12:03:31,584 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:03:31,584 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9417cbb6-9691-44e2-83a3-49ee08a09bd6/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:03:31,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:03:31,593 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 12:03:31,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:03:31,678 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:03:31,746 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 395 proven. 2 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-11-18 12:03:31,746 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 12:03:31,893 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 395 proven. 2 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-11-18 12:03:31,909 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 12:03:31,909 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 12 [2018-11-18 12:03:31,909 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 12:03:31,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 12:03:31,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 12:03:31,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-11-18 12:03:31,910 INFO L87 Difference]: Start difference. First operand 9992 states and 12723 transitions. Second operand 11 states. [2018-11-18 12:03:33,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:03:33,377 INFO L93 Difference]: Finished difference Result 19169 states and 25042 transitions. [2018-11-18 12:03:33,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-18 12:03:33,384 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 396 [2018-11-18 12:03:33,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:03:33,432 INFO L225 Difference]: With dead ends: 19169 [2018-11-18 12:03:33,432 INFO L226 Difference]: Without dead ends: 9615 [2018-11-18 12:03:33,463 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 820 GetRequests, 796 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420 [2018-11-18 12:03:33,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9615 states. [2018-11-18 12:03:33,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9615 to 9264. [2018-11-18 12:03:33,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9264 states. [2018-11-18 12:03:33,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9264 states to 9264 states and 11717 transitions. [2018-11-18 12:03:33,678 INFO L78 Accepts]: Start accepts. Automaton has 9264 states and 11717 transitions. Word has length 396 [2018-11-18 12:03:33,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:03:33,679 INFO L480 AbstractCegarLoop]: Abstraction has 9264 states and 11717 transitions. [2018-11-18 12:03:33,679 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 12:03:33,679 INFO L276 IsEmpty]: Start isEmpty. Operand 9264 states and 11717 transitions. [2018-11-18 12:03:33,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2018-11-18 12:03:33,708 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:03:33,709 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 12:03:33,709 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:03:33,709 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:03:33,709 INFO L82 PathProgramCache]: Analyzing trace with hash 642099933, now seen corresponding path program 1 times [2018-11-18 12:03:33,709 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:03:33,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:03:33,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:03:33,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:03:33,710 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:03:33,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:03:34,120 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-11-18 12:03:34,427 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 182 proven. 222 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-11-18 12:03:34,427 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:03:34,427 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:03:34,427 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 415 with the following transitions: [2018-11-18 12:03:34,428 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [706], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [766], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 12:03:34,430 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:03:34,431 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:03:34,595 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 12:03:34,596 INFO L272 AbstractInterpreter]: Visited 148 different actions 443 times. Merged at 8 different actions 23 times. Never widened. Performed 4829 root evaluator evaluations with a maximum evaluation depth of 9. Performed 4829 inverse root evaluator evaluations with a maximum inverse evaluation depth of 9. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 12:03:34,603 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:03:34,604 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 12:03:34,604 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:03:34,604 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9417cbb6-9691-44e2-83a3-49ee08a09bd6/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:03:34,610 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:03:34,611 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 12:03:34,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:03:34,668 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:03:37,029 WARN L180 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 33 DAG size of output: 25 [2018-11-18 12:03:38,579 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 0 proven. 479 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:03:38,580 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 12:03:38,728 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2018-11-18 12:03:38,744 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:03:38,744 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [12, 12] total 19 [2018-11-18 12:03:38,745 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:03:38,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 12:03:38,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 12:03:38,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=281, Unknown=1, NotChecked=0, Total=342 [2018-11-18 12:03:38,745 INFO L87 Difference]: Start difference. First operand 9264 states and 11717 transitions. Second operand 3 states. [2018-11-18 12:03:39,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:03:39,200 INFO L93 Difference]: Finished difference Result 19579 states and 25145 transitions. [2018-11-18 12:03:39,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 12:03:39,200 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 414 [2018-11-18 12:03:39,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:03:39,201 INFO L225 Difference]: With dead ends: 19579 [2018-11-18 12:03:39,201 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 12:03:39,246 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 841 GetRequests, 820 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=60, Invalid=281, Unknown=1, NotChecked=0, Total=342 [2018-11-18 12:03:39,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 12:03:39,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 12:03:39,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 12:03:39,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 12:03:39,247 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 414 [2018-11-18 12:03:39,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:03:39,247 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:03:39,247 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 12:03:39,247 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 12:03:39,247 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 12:03:39,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 12:03:39,414 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:03:39,416 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:03:39,417 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:03:39,418 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:03:39,421 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:03:39,460 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:03:39,473 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:03:39,508 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:03:39,707 WARN L180 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 174 [2018-11-18 12:03:39,712 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:03:39,713 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:03:39,715 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:03:39,715 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:03:39,718 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:03:39,738 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:03:39,747 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:03:39,880 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 176 [2018-11-18 12:03:40,111 WARN L180 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 15 [2018-11-18 12:03:40,582 WARN L180 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 27 [2018-11-18 12:03:41,232 WARN L180 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 56 [2018-11-18 12:03:41,722 WARN L180 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 51 [2018-11-18 12:03:42,123 WARN L180 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 51 [2018-11-18 12:03:42,125 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:03:42,125 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a19~0 |old(~a19~0)|) (= |old(~a10~0)| ~a10~0) (= ~a1~0 |old(~a1~0)|)) [2018-11-18 12:03:42,125 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:03:42,125 INFO L425 ceAbstractionStarter]: For program point L465(lines 465 572) no Hoare annotation was computed. [2018-11-18 12:03:42,125 INFO L425 ceAbstractionStarter]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,125 INFO L425 ceAbstractionStarter]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,125 INFO L425 ceAbstractionStarter]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,125 INFO L425 ceAbstractionStarter]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,125 INFO L425 ceAbstractionStarter]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,126 INFO L425 ceAbstractionStarter]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,126 INFO L425 ceAbstractionStarter]: For program point L499(lines 499 572) no Hoare annotation was computed. [2018-11-18 12:03:42,126 INFO L425 ceAbstractionStarter]: For program point L301(lines 301 572) no Hoare annotation was computed. [2018-11-18 12:03:42,126 INFO L425 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-11-18 12:03:42,126 INFO L425 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-11-18 12:03:42,126 INFO L425 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-11-18 12:03:42,126 INFO L425 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-11-18 12:03:42,126 INFO L425 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-11-18 12:03:42,126 INFO L425 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-11-18 12:03:42,126 INFO L425 ceAbstractionStarter]: For program point L335(lines 335 572) no Hoare annotation was computed. [2018-11-18 12:03:42,126 INFO L425 ceAbstractionStarter]: For program point L236(lines 236 572) no Hoare annotation was computed. [2018-11-18 12:03:42,126 INFO L425 ceAbstractionStarter]: For program point L534(lines 534 572) no Hoare annotation was computed. [2018-11-18 12:03:42,126 INFO L425 ceAbstractionStarter]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,126 INFO L425 ceAbstractionStarter]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,126 INFO L425 ceAbstractionStarter]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,127 INFO L425 ceAbstractionStarter]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,127 INFO L425 ceAbstractionStarter]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,127 INFO L425 ceAbstractionStarter]: For program point L436(lines 436 572) no Hoare annotation was computed. [2018-11-18 12:03:42,127 INFO L425 ceAbstractionStarter]: For program point L403(lines 403 572) no Hoare annotation was computed. [2018-11-18 12:03:42,127 INFO L425 ceAbstractionStarter]: For program point L370(lines 370 572) no Hoare annotation was computed. [2018-11-18 12:03:42,127 INFO L425 ceAbstractionStarter]: For program point L271(lines 271 572) no Hoare annotation was computed. [2018-11-18 12:03:42,127 INFO L425 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-11-18 12:03:42,127 INFO L425 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-11-18 12:03:42,127 INFO L425 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-11-18 12:03:42,127 INFO L425 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-11-18 12:03:42,127 INFO L425 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-11-18 12:03:42,127 INFO L425 ceAbstractionStarter]: For program point L569(lines 569 572) no Hoare annotation was computed. [2018-11-18 12:03:42,127 INFO L425 ceAbstractionStarter]: For program point L239(lines 239 572) no Hoare annotation was computed. [2018-11-18 12:03:42,127 INFO L425 ceAbstractionStarter]: For program point L504(lines 504 572) no Hoare annotation was computed. [2018-11-18 12:03:42,128 INFO L425 ceAbstractionStarter]: For program point L471(lines 471 572) no Hoare annotation was computed. [2018-11-18 12:03:42,128 INFO L425 ceAbstractionStarter]: For program point L306(lines 306 572) no Hoare annotation was computed. [2018-11-18 12:03:42,128 INFO L425 ceAbstractionStarter]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,128 INFO L425 ceAbstractionStarter]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,128 INFO L425 ceAbstractionStarter]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,128 INFO L425 ceAbstractionStarter]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,128 INFO L425 ceAbstractionStarter]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,128 INFO L425 ceAbstractionStarter]: For program point L340(lines 340 572) no Hoare annotation was computed. [2018-11-18 12:03:42,128 INFO L425 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-11-18 12:03:42,128 INFO L425 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-11-18 12:03:42,128 INFO L425 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-11-18 12:03:42,128 INFO L425 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-11-18 12:03:42,128 INFO L425 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-18 12:03:42,128 INFO L425 ceAbstractionStarter]: For program point L540(lines 540 572) no Hoare annotation was computed. [2018-11-18 12:03:42,129 INFO L425 ceAbstractionStarter]: For program point L408(lines 408 572) no Hoare annotation was computed. [2018-11-18 12:03:42,129 INFO L425 ceAbstractionStarter]: For program point L375(lines 375 572) no Hoare annotation was computed. [2018-11-18 12:03:42,129 INFO L425 ceAbstractionStarter]: For program point L210(lines 210 572) no Hoare annotation was computed. [2018-11-18 12:03:42,129 INFO L425 ceAbstractionStarter]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,129 INFO L425 ceAbstractionStarter]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,129 INFO L425 ceAbstractionStarter]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,129 INFO L425 ceAbstractionStarter]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,129 INFO L425 ceAbstractionStarter]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,129 INFO L425 ceAbstractionStarter]: For program point L442(lines 442 572) no Hoare annotation was computed. [2018-11-18 12:03:42,129 INFO L425 ceAbstractionStarter]: For program point L277(lines 277 572) no Hoare annotation was computed. [2018-11-18 12:03:42,129 INFO L425 ceAbstractionStarter]: For program point L244(lines 244 572) no Hoare annotation was computed. [2018-11-18 12:03:42,129 INFO L425 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-11-18 12:03:42,129 INFO L425 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-11-18 12:03:42,129 INFO L425 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-11-18 12:03:42,129 INFO L425 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-18 12:03:42,130 INFO L425 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-11-18 12:03:42,130 INFO L425 ceAbstractionStarter]: For program point L509(lines 509 572) no Hoare annotation was computed. [2018-11-18 12:03:42,130 INFO L425 ceAbstractionStarter]: For program point L476(lines 476 572) no Hoare annotation was computed. [2018-11-18 12:03:42,130 INFO L425 ceAbstractionStarter]: For program point L378(lines 378 572) no Hoare annotation was computed. [2018-11-18 12:03:42,130 INFO L425 ceAbstractionStarter]: For program point L345(lines 345 572) no Hoare annotation was computed. [2018-11-18 12:03:42,130 INFO L425 ceAbstractionStarter]: For program point L312(lines 312 572) no Hoare annotation was computed. [2018-11-18 12:03:42,130 INFO L425 ceAbstractionStarter]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,130 INFO L425 ceAbstractionStarter]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,130 INFO L425 ceAbstractionStarter]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,130 INFO L425 ceAbstractionStarter]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,130 INFO L425 ceAbstractionStarter]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,130 INFO L425 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-11-18 12:03:42,130 INFO L425 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-11-18 12:03:42,130 INFO L425 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-11-18 12:03:42,131 INFO L425 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-11-18 12:03:42,131 INFO L425 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-18 12:03:42,131 INFO L425 ceAbstractionStarter]: For program point L545(lines 545 572) no Hoare annotation was computed. [2018-11-18 12:03:42,131 INFO L425 ceAbstractionStarter]: For program point L215(lines 215 572) no Hoare annotation was computed. [2018-11-18 12:03:42,131 INFO L425 ceAbstractionStarter]: For program point L414(lines 414 572) no Hoare annotation was computed. [2018-11-18 12:03:42,131 INFO L425 ceAbstractionStarter]: For program point L249(lines 249 572) no Hoare annotation was computed. [2018-11-18 12:03:42,131 INFO L425 ceAbstractionStarter]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,131 INFO L425 ceAbstractionStarter]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,131 INFO L425 ceAbstractionStarter]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,131 INFO L425 ceAbstractionStarter]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,131 INFO L425 ceAbstractionStarter]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,131 INFO L425 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,131 INFO L425 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,131 INFO L425 ceAbstractionStarter]: For program point L514(lines 514 572) no Hoare annotation was computed. [2018-11-18 12:03:42,131 INFO L425 ceAbstractionStarter]: For program point L481(lines 481 572) no Hoare annotation was computed. [2018-11-18 12:03:42,132 INFO L425 ceAbstractionStarter]: For program point L448(lines 448 572) no Hoare annotation was computed. [2018-11-18 12:03:42,132 INFO L425 ceAbstractionStarter]: For program point L283(lines 283 572) no Hoare annotation was computed. [2018-11-18 12:03:42,132 INFO L425 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-11-18 12:03:42,132 INFO L425 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-11-18 12:03:42,132 INFO L425 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-11-18 12:03:42,132 INFO L425 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-11-18 12:03:42,132 INFO L425 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-18 12:03:42,132 INFO L425 ceAbstractionStarter]: For program point L548(lines 548 572) no Hoare annotation was computed. [2018-11-18 12:03:42,132 INFO L425 ceAbstractionStarter]: For program point L383(lines 383 572) no Hoare annotation was computed. [2018-11-18 12:03:42,132 INFO L425 ceAbstractionStarter]: For program point L317(lines 317 572) no Hoare annotation was computed. [2018-11-18 12:03:42,132 INFO L425 ceAbstractionStarter]: For program point L351(lines 351 572) no Hoare annotation was computed. [2018-11-18 12:03:42,132 INFO L425 ceAbstractionStarter]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,132 INFO L425 ceAbstractionStarter]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,132 INFO L425 ceAbstractionStarter]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,132 INFO L425 ceAbstractionStarter]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,133 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-11-18 12:03:42,133 INFO L425 ceAbstractionStarter]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,133 INFO L425 ceAbstractionStarter]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,133 INFO L425 ceAbstractionStarter]: For program point L517(lines 517 572) no Hoare annotation was computed. [2018-11-18 12:03:42,133 INFO L425 ceAbstractionStarter]: For program point L286(lines 286 572) no Hoare annotation was computed. [2018-11-18 12:03:42,133 INFO L425 ceAbstractionStarter]: For program point L220(lines 220 572) no Hoare annotation was computed. [2018-11-18 12:03:42,133 INFO L425 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-11-18 12:03:42,133 INFO L425 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-11-18 12:03:42,133 INFO L425 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-11-18 12:03:42,133 INFO L425 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-11-18 12:03:42,133 INFO L425 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-11-18 12:03:42,133 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-18 12:03:42,133 INFO L425 ceAbstractionStarter]: For program point L419(lines 419 572) no Hoare annotation was computed. [2018-11-18 12:03:42,133 INFO L425 ceAbstractionStarter]: For program point L320(lines 320 572) no Hoare annotation was computed. [2018-11-18 12:03:42,133 INFO L425 ceAbstractionStarter]: For program point L254(lines 254 572) no Hoare annotation was computed. [2018-11-18 12:03:42,134 INFO L425 ceAbstractionStarter]: For program point L354(lines 354 572) no Hoare annotation was computed. [2018-11-18 12:03:42,134 INFO L425 ceAbstractionStarter]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,134 INFO L425 ceAbstractionStarter]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,134 INFO L425 ceAbstractionStarter]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,134 INFO L425 ceAbstractionStarter]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,134 INFO L425 ceAbstractionStarter]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,134 INFO L425 ceAbstractionStarter]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,134 INFO L425 ceAbstractionStarter]: For program point L487(lines 487 572) no Hoare annotation was computed. [2018-11-18 12:03:42,134 INFO L425 ceAbstractionStarter]: For program point L454(lines 454 572) no Hoare annotation was computed. [2018-11-18 12:03:42,134 INFO L425 ceAbstractionStarter]: For program point L388(lines 388 572) no Hoare annotation was computed. [2018-11-18 12:03:42,134 INFO L425 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-11-18 12:03:42,134 INFO L425 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-11-18 12:03:42,134 INFO L425 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-11-18 12:03:42,134 INFO L425 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-11-18 12:03:42,135 INFO L425 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-11-18 12:03:42,135 INFO L425 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-18 12:03:42,135 INFO L425 ceAbstractionStarter]: For program point L554(lines 554 572) no Hoare annotation was computed. [2018-11-18 12:03:42,135 INFO L425 ceAbstractionStarter]: For program point L323(lines 323 572) no Hoare annotation was computed. [2018-11-18 12:03:42,135 INFO L421 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse10 (= ~a1~0 |old(~a1~0)|)) (.cse9 (= ~a19~0 |old(~a19~0)|)) (.cse4 (= |old(~a10~0)| ~a10~0))) (let ((.cse7 (and .cse10 .cse9 .cse4)) (.cse0 (= 7 |old(~a19~0)|)) (.cse5 (< |old(~a10~0)| 1)) (.cse6 (= 4 |old(~a10~0)|)) (.cse1 (not (= 14 ~a4~0))) (.cse2 (not (= 0 ~a12~0))) (.cse8 (< 33 |old(~a1~0)|)) (.cse3 (and .cse9 .cse4 .cse10))) (and (or .cse0 (< 38 |old(~a1~0)|) .cse1 .cse2 .cse3 (not (= |old(~a10~0)| 0))) (or (and (= 8 ~a19~0) .cse4) (not (= 8 |old(~a19~0)|))) (or .cse5 .cse6 .cse3 .cse1 .cse2 (<= |old(~a1~0)| 218)) (or .cse0 (= 10 |old(~a19~0)|) .cse1 .cse7 .cse2) (or .cse6 (< |old(~a10~0)| 2) .cse1 .cse2 .cse7) (or .cse5 .cse0 .cse6 .cse3 .cse1 .cse2) (or .cse0 .cse6 .cse3 .cse1 .cse2 .cse8) (or .cse5 .cse6 .cse1 .cse2 .cse8 .cse3)))) [2018-11-18 12:03:42,135 INFO L425 ceAbstractionStarter]: For program point L357(lines 357 572) no Hoare annotation was computed. [2018-11-18 12:03:42,135 INFO L425 ceAbstractionStarter]: For program point L291(lines 291 572) no Hoare annotation was computed. [2018-11-18 12:03:42,135 INFO L425 ceAbstractionStarter]: For program point L225(lines 225 572) no Hoare annotation was computed. [2018-11-18 12:03:42,135 INFO L425 ceAbstractionStarter]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,135 INFO L425 ceAbstractionStarter]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,135 INFO L425 ceAbstractionStarter]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,135 INFO L425 ceAbstractionStarter]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,136 INFO L425 ceAbstractionStarter]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,136 INFO L425 ceAbstractionStarter]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,136 INFO L425 ceAbstractionStarter]: For program point L523(lines 523 572) no Hoare annotation was computed. [2018-11-18 12:03:42,136 INFO L425 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-11-18 12:03:42,136 INFO L425 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-11-18 12:03:42,136 INFO L425 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-11-18 12:03:42,136 INFO L425 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-11-18 12:03:42,136 INFO L425 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-11-18 12:03:42,136 INFO L425 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-11-18 12:03:42,136 INFO L425 ceAbstractionStarter]: For program point L557(lines 557 572) no Hoare annotation was computed. [2018-11-18 12:03:42,136 INFO L425 ceAbstractionStarter]: For program point L425(lines 425 572) no Hoare annotation was computed. [2018-11-18 12:03:42,136 INFO L425 ceAbstractionStarter]: For program point L326(lines 326 572) no Hoare annotation was computed. [2018-11-18 12:03:42,136 INFO L425 ceAbstractionStarter]: For program point L260(lines 260 572) no Hoare annotation was computed. [2018-11-18 12:03:42,136 INFO L425 ceAbstractionStarter]: For program point L393(lines 393 572) no Hoare annotation was computed. [2018-11-18 12:03:42,137 INFO L425 ceAbstractionStarter]: For program point L360(lines 360 572) no Hoare annotation was computed. [2018-11-18 12:03:42,137 INFO L425 ceAbstractionStarter]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,137 INFO L425 ceAbstractionStarter]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,137 INFO L425 ceAbstractionStarter]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,137 INFO L425 ceAbstractionStarter]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,137 INFO L425 ceAbstractionStarter]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,137 INFO L425 ceAbstractionStarter]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,137 INFO L425 ceAbstractionStarter]: For program point L526(lines 526 572) no Hoare annotation was computed. [2018-11-18 12:03:42,137 INFO L425 ceAbstractionStarter]: For program point L493(lines 493 572) no Hoare annotation was computed. [2018-11-18 12:03:42,137 INFO L425 ceAbstractionStarter]: For program point L460(lines 460 572) no Hoare annotation was computed. [2018-11-18 12:03:42,137 INFO L425 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-11-18 12:03:42,137 INFO L425 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-11-18 12:03:42,137 INFO L425 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-11-18 12:03:42,137 INFO L425 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-11-18 12:03:42,138 INFO L425 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 196) no Hoare annotation was computed. [2018-11-18 12:03:42,138 INFO L425 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-11-18 12:03:42,138 INFO L425 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-11-18 12:03:42,138 INFO L425 ceAbstractionStarter]: For program point L329(lines 329 572) no Hoare annotation was computed. [2018-11-18 12:03:42,138 INFO L425 ceAbstractionStarter]: For program point L296(lines 296 572) no Hoare annotation was computed. [2018-11-18 12:03:42,138 INFO L425 ceAbstractionStarter]: For program point L231(lines 231 572) no Hoare annotation was computed. [2018-11-18 12:03:42,138 INFO L425 ceAbstractionStarter]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,138 INFO L425 ceAbstractionStarter]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,138 INFO L425 ceAbstractionStarter]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,138 INFO L425 ceAbstractionStarter]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,138 INFO L425 ceAbstractionStarter]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,138 INFO L425 ceAbstractionStarter]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 12:03:42,138 INFO L425 ceAbstractionStarter]: For program point L529(lines 529 572) no Hoare annotation was computed. [2018-11-18 12:03:42,138 INFO L425 ceAbstractionStarter]: For program point L430(lines 430 572) no Hoare annotation was computed. [2018-11-18 12:03:42,138 INFO L425 ceAbstractionStarter]: For program point L265(lines 265 572) no Hoare annotation was computed. [2018-11-18 12:03:42,139 INFO L425 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-11-18 12:03:42,139 INFO L425 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-11-18 12:03:42,139 INFO L425 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-11-18 12:03:42,139 INFO L425 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-11-18 12:03:42,139 INFO L425 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-11-18 12:03:42,139 INFO L425 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-11-18 12:03:42,139 INFO L425 ceAbstractionStarter]: For program point L563(lines 563 572) no Hoare annotation was computed. [2018-11-18 12:03:42,139 INFO L425 ceAbstractionStarter]: For program point L398(lines 398 572) no Hoare annotation was computed. [2018-11-18 12:03:42,139 INFO L425 ceAbstractionStarter]: For program point L365(lines 365 572) no Hoare annotation was computed. [2018-11-18 12:03:42,139 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:03:42,139 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a19~0 9) (= ~a10~0 0) (= ~a12~0 0) (= ~a1~0 23) (= ~a4~0 14)) [2018-11-18 12:03:42,139 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:03:42,139 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:03:42,140 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (and (= ~a1~0 23) (= ~a19~0 |old(~a19~0)|) (= |old(~a10~0)| ~a10~0)) (not (= 14 ~a4~0)) (not (= 0 ~a12~0)) (not (= 9 |old(~a19~0)|)) (not (= 23 |old(~a1~0)|)) (not (= 0 |old(~a10~0)|))) [2018-11-18 12:03:42,140 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2018-11-18 12:03:42,140 INFO L421 ceAbstractionStarter]: At program point L590(line 590) the Hoare annotation is: (let ((.cse2 (<= ~a1~0 33)) (.cse3 (not (= 7 ~a19~0))) (.cse0 (<= 1 ~a10~0)) (.cse1 (not (= ~a10~0 4)))) (or (not (= 23 |old(~a1~0)|)) (and .cse0 (not (= ~a10~0 1)) .cse1) (not (= 0 ~a12~0)) (not (= 0 |old(~a10~0)|)) (and .cse0 .cse2 .cse1) (and (< 218 ~a1~0) (= 1 ~a10~0)) (and (<= ~a1~0 38) .cse3 (= ~a10~0 |old(~a10~0)|)) (and .cse3 .cse2 .cse1) (not (= 9 |old(~a19~0)|)) (and .cse3 (not (= ~a19~0 10))) (not (= 14 ~a4~0)) (and .cse3 .cse0 .cse1))) [2018-11-18 12:03:42,140 INFO L425 ceAbstractionStarter]: For program point L590-1(line 590) no Hoare annotation was computed. [2018-11-18 12:03:42,140 INFO L425 ceAbstractionStarter]: For program point L587(line 587) no Hoare annotation was computed. [2018-11-18 12:03:42,140 INFO L425 ceAbstractionStarter]: For program point L582-1(lines 582 591) no Hoare annotation was computed. [2018-11-18 12:03:42,140 INFO L421 ceAbstractionStarter]: At program point L582-3(lines 582 591) the Hoare annotation is: (let ((.cse2 (<= ~a1~0 33)) (.cse3 (not (= 7 ~a19~0))) (.cse0 (<= 1 ~a10~0)) (.cse1 (not (= ~a10~0 4)))) (or (not (= 23 |old(~a1~0)|)) (and .cse0 (not (= ~a10~0 1)) .cse1) (not (= 0 ~a12~0)) (not (= 0 |old(~a10~0)|)) (and .cse0 .cse2 .cse1) (and (< 218 ~a1~0) (= 1 ~a10~0)) (and (<= ~a1~0 38) .cse3 (= ~a10~0 |old(~a10~0)|)) (and .cse3 .cse2 .cse1) (not (= 9 |old(~a19~0)|)) (and .cse3 (not (= ~a19~0 10))) (not (= 14 ~a4~0)) (and .cse3 .cse0 .cse1))) [2018-11-18 12:03:42,140 INFO L425 ceAbstractionStarter]: For program point L582-4(lines 576 592) no Hoare annotation was computed. [2018-11-18 12:03:42,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:03:42 BoogieIcfgContainer [2018-11-18 12:03:42,149 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:03:42,149 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:03:42,149 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:03:42,150 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:03:42,150 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:02:01" (3/4) ... [2018-11-18 12:03:42,153 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 12:03:42,159 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 12:03:42,159 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-18 12:03:42,160 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 12:03:42,177 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 12:03:42,177 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 12:03:42,207 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!(23 == \old(a1)) || ((1 <= a10 && !(a10 == 1)) && !(a10 == 4))) || !(0 == a12)) || !(0 == \old(a10))) || ((1 <= a10 && a1 <= 33) && !(a10 == 4))) || (218 < a1 && 1 == a10)) || ((a1 <= 38 && !(7 == a19)) && a10 == \old(a10))) || ((!(7 == a19) && a1 <= 33) && !(a10 == 4))) || !(9 == \old(a19))) || (!(7 == a19) && !(a19 == 10))) || !(14 == a4)) || ((!(7 == a19) && 1 <= a10) && !(a10 == 4)) [2018-11-18 12:03:42,305 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9417cbb6-9691-44e2-83a3-49ee08a09bd6/bin-2019/utaipan/witness.graphml [2018-11-18 12:03:42,305 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:03:42,306 INFO L168 Benchmark]: Toolchain (without parser) took 102628.57 ms. Allocated memory was 1.0 GB in the beginning and 3.7 GB in the end (delta: 2.7 GB). Free memory was 956.5 MB in the beginning and 3.0 GB in the end (delta: -2.0 GB). Peak memory consumption was 667.0 MB. Max. memory is 11.5 GB. [2018-11-18 12:03:42,307 INFO L168 Benchmark]: CDTParser took 0.19 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 12:03:42,307 INFO L168 Benchmark]: CACSL2BoogieTranslator took 441.08 ms. Allocated memory is still 1.0 GB. Free memory was 956.5 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 12:03:42,307 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.38 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 918.9 MB in the beginning and 1.1 GB in the end (delta: -184.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2018-11-18 12:03:42,307 INFO L168 Benchmark]: Boogie Preprocessor took 59.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-18 12:03:42,310 INFO L168 Benchmark]: RCFGBuilder took 1617.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 992.0 MB in the end (delta: 107.3 MB). Peak memory consumption was 107.3 MB. Max. memory is 11.5 GB. [2018-11-18 12:03:42,310 INFO L168 Benchmark]: TraceAbstraction took 100260.45 ms. Allocated memory was 1.1 GB in the beginning and 3.7 GB in the end (delta: 2.6 GB). Free memory was 992.0 MB in the beginning and 3.0 GB in the end (delta: -2.0 GB). Peak memory consumption was 2.9 GB. Max. memory is 11.5 GB. [2018-11-18 12:03:42,310 INFO L168 Benchmark]: Witness Printer took 156.14 ms. Allocated memory is still 3.7 GB. Free memory was 3.0 GB in the beginning and 3.0 GB in the end (delta: 56.2 MB). Peak memory consumption was 56.2 MB. Max. memory is 11.5 GB. [2018-11-18 12:03:42,314 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 441.08 ms. Allocated memory is still 1.0 GB. Free memory was 956.5 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 90.38 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 918.9 MB in the beginning and 1.1 GB in the end (delta: -184.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 59.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1617.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 992.0 MB in the end (delta: 107.3 MB). Peak memory consumption was 107.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 100260.45 ms. Allocated memory was 1.1 GB in the beginning and 3.7 GB in the end (delta: 2.6 GB). Free memory was 992.0 MB in the beginning and 3.0 GB in the end (delta: -2.0 GB). Peak memory consumption was 2.9 GB. Max. memory is 11.5 GB. * Witness Printer took 156.14 ms. Allocated memory is still 3.7 GB. Free memory was 3.0 GB in the beginning and 3.0 GB in the end (delta: 56.2 MB). Peak memory consumption was 56.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 196]: 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: 582]: Loop Invariant Derived loop invariant: ((((((((((!(23 == \old(a1)) || ((1 <= a10 && !(a10 == 1)) && !(a10 == 4))) || !(0 == a12)) || !(0 == \old(a10))) || ((1 <= a10 && a1 <= 33) && !(a10 == 4))) || (218 < a1 && 1 == a10)) || ((a1 <= 38 && !(7 == a19)) && a10 == \old(a10))) || ((!(7 == a19) && a1 <= 33) && !(a10 == 4))) || !(9 == \old(a19))) || (!(7 == a19) && !(a19 == 10))) || !(14 == a4)) || ((!(7 == a19) && 1 <= a10) && !(a10 == 4)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. SAFE Result, 100.1s OverallTime, 10 OverallIterations, 4 TraceHistogramMax, 46.6s AutomataDifference, 0.0s DeadEndRemovalTime, 2.8s HoareAnnotationTime, HoareTripleCheckerStatistics: 1152 SDtfs, 9681 SDslu, 1254 SDs, 0 SdLazy, 14650 SolverSat, 3285 SolverUnsat, 15 SolverUnknown, 0 SolverNotchecked, 22.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 3428 GetRequests, 3139 SyntacticMatches, 126 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3988 ImplicationChecksByTransitivity, 55.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9992occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 4.7s AbstIntTime, 5 AbstIntIterations, 1 AbstIntStrong, 0.9976639543029587 AbsIntWeakeningRatio, 0.1078838174273859 AbsIntAvgWeakeningVarsNumRemoved, 15.560165975103734 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 10 MinimizatonAttempts, 687 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 219 PreInvPairs, 343 NumberOfFragments, 460 HoareAnnotationTreeSize, 219 FomulaSimplifications, 11690 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 12490 FormulaSimplificationTreeSizeReductionInter, 2.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 42.5s InterpolantComputationTime, 4138 NumberOfCodeBlocks, 4138 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 5601 ConstructedInterpolants, 200 QuantifiedInterpolants, 13737736 SizeOfPredicates, 15 NumberOfNonLiveVariables, 2331 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 18 InterpolantComputations, 6 PerfectInterpolantSequences, 4876/6315 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...