./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label53_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_979a874e-ea4e-4b83-83ce-e612b5402aa2/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_979a874e-ea4e-4b83-83ce-e612b5402aa2/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_979a874e-ea4e-4b83-83ce-e612b5402aa2/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_979a874e-ea4e-4b83-83ce-e612b5402aa2/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label53_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_979a874e-ea4e-4b83-83ce-e612b5402aa2/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_979a874e-ea4e-4b83-83ce-e612b5402aa2/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 bab2da56573ef206e3542dbf4ea35e0da738901e .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 21:06:49,110 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 21:06:49,111 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 21:06:49,119 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 21:06:49,119 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 21:06:49,120 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 21:06:49,120 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 21:06:49,121 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 21:06:49,122 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 21:06:49,123 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 21:06:49,124 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 21:06:49,124 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 21:06:49,124 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 21:06:49,125 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 21:06:49,126 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 21:06:49,126 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 21:06:49,127 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 21:06:49,128 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 21:06:49,130 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 21:06:49,131 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 21:06:49,131 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 21:06:49,132 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 21:06:49,134 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 21:06:49,134 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 21:06:49,134 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 21:06:49,135 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 21:06:49,135 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 21:06:49,136 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 21:06:49,137 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 21:06:49,137 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 21:06:49,137 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 21:06:49,138 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 21:06:49,138 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 21:06:49,138 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 21:06:49,139 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 21:06:49,139 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 21:06:49,139 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_979a874e-ea4e-4b83-83ce-e612b5402aa2/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 21:06:49,149 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 21:06:49,150 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 21:06:49,150 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 21:06:49,150 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 21:06:49,151 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 21:06:49,151 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 21:06:49,151 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 21:06:49,151 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 21:06:49,151 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 21:06:49,151 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 21:06:49,151 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 21:06:49,152 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 21:06:49,152 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 21:06:49,152 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 21:06:49,152 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 21:06:49,153 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 21:06:49,153 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 21:06:49,153 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 21:06:49,153 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 21:06:49,153 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 21:06:49,153 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 21:06:49,153 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 21:06:49,154 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 21:06:49,154 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 21:06:49,154 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 21:06:49,154 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 21:06:49,154 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 21:06:49,154 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 21:06:49,154 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 21:06:49,154 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 21:06:49,154 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 21:06:49,154 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 21:06:49,154 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 21:06:49,155 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 21:06:49,155 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 21:06:49,155 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 21:06:49,155 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_979a874e-ea4e-4b83-83ce-e612b5402aa2/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 -> bab2da56573ef206e3542dbf4ea35e0da738901e [2018-12-08 21:06:49,177 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 21:06:49,186 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 21:06:49,189 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 21:06:49,190 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 21:06:49,190 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 21:06:49,190 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_979a874e-ea4e-4b83-83ce-e612b5402aa2/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem01_label53_true-unreach-call_false-termination.c [2018-12-08 21:06:49,236 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_979a874e-ea4e-4b83-83ce-e612b5402aa2/bin-2019/utaipan/data/517b8dfa7/015f3b6949f04c2591e1fa2744549443/FLAG84e734908 [2018-12-08 21:06:49,601 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 21:06:49,602 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_979a874e-ea4e-4b83-83ce-e612b5402aa2/sv-benchmarks/c/eca-rers2012/Problem01_label53_true-unreach-call_false-termination.c [2018-12-08 21:06:49,609 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_979a874e-ea4e-4b83-83ce-e612b5402aa2/bin-2019/utaipan/data/517b8dfa7/015f3b6949f04c2591e1fa2744549443/FLAG84e734908 [2018-12-08 21:06:50,000 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_979a874e-ea4e-4b83-83ce-e612b5402aa2/bin-2019/utaipan/data/517b8dfa7/015f3b6949f04c2591e1fa2744549443 [2018-12-08 21:06:50,003 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 21:06:50,004 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 21:06:50,005 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 21:06:50,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 21:06:50,008 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 21:06:50,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 09:06:50" (1/1) ... [2018-12-08 21:06:50,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37ab3c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:06:50, skipping insertion in model container [2018-12-08 21:06:50,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 09:06:50" (1/1) ... [2018-12-08 21:06:50,018 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 21:06:50,050 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 21:06:50,226 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 21:06:50,229 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 21:06:50,279 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 21:06:50,332 INFO L195 MainTranslator]: Completed translation [2018-12-08 21:06:50,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:06:50 WrapperNode [2018-12-08 21:06:50,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 21:06:50,333 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 21:06:50,333 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 21:06:50,333 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 21:06:50,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:06:50" (1/1) ... [2018-12-08 21:06:50,347 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:06:50" (1/1) ... [2018-12-08 21:06:50,351 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 21:06:50,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 21:06:50,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 21:06:50,352 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 21:06:50,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:06:50" (1/1) ... [2018-12-08 21:06:50,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:06:50" (1/1) ... [2018-12-08 21:06:50,360 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:06:50" (1/1) ... [2018-12-08 21:06:50,361 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:06:50" (1/1) ... [2018-12-08 21:06:50,377 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:06:50" (1/1) ... [2018-12-08 21:06:50,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:06:50" (1/1) ... [2018-12-08 21:06:50,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:06:50" (1/1) ... [2018-12-08 21:06:50,393 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 21:06:50,393 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 21:06:50,394 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 21:06:50,394 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 21:06:50,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:06:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_979a874e-ea4e-4b83-83ce-e612b5402aa2/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 21:06:50,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 21:06:50,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 21:06:50,434 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-12-08 21:06:50,434 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-12-08 21:06:50,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 21:06:50,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 21:06:50,434 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 21:06:50,435 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 21:06:51,013 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 21:06:51,013 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-08 21:06:51,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:06:51 BoogieIcfgContainer [2018-12-08 21:06:51,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 21:06:51,015 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 21:06:51,015 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 21:06:51,018 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 21:06:51,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 09:06:50" (1/3) ... [2018-12-08 21:06:51,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@527b1a0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 09:06:51, skipping insertion in model container [2018-12-08 21:06:51,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:06:50" (2/3) ... [2018-12-08 21:06:51,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@527b1a0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 09:06:51, skipping insertion in model container [2018-12-08 21:06:51,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:06:51" (3/3) ... [2018-12-08 21:06:51,021 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label53_true-unreach-call_false-termination.c [2018-12-08 21:06:51,029 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 21:06:51,034 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 21:06:51,044 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 21:06:51,065 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 21:06:51,065 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 21:06:51,065 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 21:06:51,066 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 21:06:51,066 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 21:06:51,066 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 21:06:51,066 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 21:06:51,066 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 21:06:51,079 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2018-12-08 21:06:51,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-12-08 21:06:51,086 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:06:51,086 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:06:51,088 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:06:51,091 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:06:51,091 INFO L82 PathProgramCache]: Analyzing trace with hash 597031182, now seen corresponding path program 1 times [2018-12-08 21:06:51,092 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 21:06:51,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:06:51,128 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:06:51,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:06:51,128 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 21:06:51,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:06:51,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 21:06:51,349 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 21:06:51,349 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 21:06:51,349 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 21:06:51,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 21:06:51,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 21:06:51,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 21:06:51,362 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2018-12-08 21:06:51,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:06:51,794 INFO L93 Difference]: Finished difference Result 547 states and 938 transitions. [2018-12-08 21:06:51,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 21:06:51,795 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2018-12-08 21:06:51,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:06:51,805 INFO L225 Difference]: With dead ends: 547 [2018-12-08 21:06:51,805 INFO L226 Difference]: Without dead ends: 278 [2018-12-08 21:06:51,808 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 21:06:51,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2018-12-08 21:06:51,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2018-12-08 21:06:51,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2018-12-08 21:06:51,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 400 transitions. [2018-12-08 21:06:51,854 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 400 transitions. Word has length 120 [2018-12-08 21:06:51,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:06:51,854 INFO L480 AbstractCegarLoop]: Abstraction has 278 states and 400 transitions. [2018-12-08 21:06:51,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 21:06:51,855 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 400 transitions. [2018-12-08 21:06:51,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-12-08 21:06:51,858 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:06:51,858 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:06:51,859 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:06:51,859 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:06:51,859 INFO L82 PathProgramCache]: Analyzing trace with hash 330455461, now seen corresponding path program 1 times [2018-12-08 21:06:51,859 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 21:06:51,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:06:51,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:06:51,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:06:51,861 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 21:06:51,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:06:51,959 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 21:06:51,959 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 21:06:51,959 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 21:06:51,959 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 21:06:51,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 21:06:51,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 21:06:51,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-08 21:06:51,961 INFO L87 Difference]: Start difference. First operand 278 states and 400 transitions. Second operand 6 states. [2018-12-08 21:06:52,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:06:52,379 INFO L93 Difference]: Finished difference Result 703 states and 1026 transitions. [2018-12-08 21:06:52,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 21:06:52,380 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 130 [2018-12-08 21:06:52,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:06:52,382 INFO L225 Difference]: With dead ends: 703 [2018-12-08 21:06:52,382 INFO L226 Difference]: Without dead ends: 431 [2018-12-08 21:06:52,383 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-12-08 21:06:52,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2018-12-08 21:06:52,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 419. [2018-12-08 21:06:52,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2018-12-08 21:06:52,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 588 transitions. [2018-12-08 21:06:52,397 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 588 transitions. Word has length 130 [2018-12-08 21:06:52,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:06:52,398 INFO L480 AbstractCegarLoop]: Abstraction has 419 states and 588 transitions. [2018-12-08 21:06:52,398 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 21:06:52,398 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 588 transitions. [2018-12-08 21:06:52,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-12-08 21:06:52,399 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:06:52,399 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:06:52,399 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:06:52,400 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:06:52,400 INFO L82 PathProgramCache]: Analyzing trace with hash -46995225, now seen corresponding path program 1 times [2018-12-08 21:06:52,400 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 21:06:52,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:06:52,400 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:06:52,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:06:52,400 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 21:06:52,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:06:52,549 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 21:06:52,549 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 21:06:52,549 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 21:06:52,549 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 21:06:52,549 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 21:06:52,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 21:06:52,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 21:06:52,550 INFO L87 Difference]: Start difference. First operand 419 states and 588 transitions. Second operand 5 states. [2018-12-08 21:06:52,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:06:52,847 INFO L93 Difference]: Finished difference Result 933 states and 1337 transitions. [2018-12-08 21:06:52,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 21:06:52,848 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 131 [2018-12-08 21:06:52,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:06:52,850 INFO L225 Difference]: With dead ends: 933 [2018-12-08 21:06:52,850 INFO L226 Difference]: Without dead ends: 417 [2018-12-08 21:06:52,851 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 21:06:52,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2018-12-08 21:06:52,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 417. [2018-12-08 21:06:52,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2018-12-08 21:06:52,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 550 transitions. [2018-12-08 21:06:52,865 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 550 transitions. Word has length 131 [2018-12-08 21:06:52,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:06:52,865 INFO L480 AbstractCegarLoop]: Abstraction has 417 states and 550 transitions. [2018-12-08 21:06:52,865 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 21:06:52,865 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 550 transitions. [2018-12-08 21:06:52,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-12-08 21:06:52,867 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:06:52,867 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:06:52,867 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:06:52,868 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:06:52,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1746951265, now seen corresponding path program 1 times [2018-12-08 21:06:52,868 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 21:06:52,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:06:52,869 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:06:52,869 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:06:52,869 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 21:06:52,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:06:53,060 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 21:06:53,060 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 21:06:53,061 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 21:06:53,061 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 21:06:53,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 21:06:53,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 21:06:53,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 21:06:53,061 INFO L87 Difference]: Start difference. First operand 417 states and 550 transitions. Second operand 5 states. [2018-12-08 21:06:53,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:06:53,354 INFO L93 Difference]: Finished difference Result 912 states and 1228 transitions. [2018-12-08 21:06:53,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 21:06:53,354 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 132 [2018-12-08 21:06:53,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:06:53,355 INFO L225 Difference]: With dead ends: 912 [2018-12-08 21:06:53,355 INFO L226 Difference]: Without dead ends: 417 [2018-12-08 21:06:53,356 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 21:06:53,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2018-12-08 21:06:53,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 417. [2018-12-08 21:06:53,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2018-12-08 21:06:53,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 547 transitions. [2018-12-08 21:06:53,363 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 547 transitions. Word has length 132 [2018-12-08 21:06:53,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:06:53,363 INFO L480 AbstractCegarLoop]: Abstraction has 417 states and 547 transitions. [2018-12-08 21:06:53,363 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 21:06:53,363 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 547 transitions. [2018-12-08 21:06:53,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-12-08 21:06:53,364 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:06:53,364 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:06:53,364 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:06:53,365 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:06:53,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1219225115, now seen corresponding path program 1 times [2018-12-08 21:06:53,365 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 21:06:53,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:06:53,365 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:06:53,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:06:53,365 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 21:06:53,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:06:53,410 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 21:06:53,410 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 21:06:53,411 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 21:06:53,411 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 21:06:53,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 21:06:53,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 21:06:53,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 21:06:53,412 INFO L87 Difference]: Start difference. First operand 417 states and 547 transitions. Second operand 3 states. [2018-12-08 21:06:53,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:06:53,694 INFO L93 Difference]: Finished difference Result 1237 states and 1661 transitions. [2018-12-08 21:06:53,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 21:06:53,694 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2018-12-08 21:06:53,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:06:53,697 INFO L225 Difference]: With dead ends: 1237 [2018-12-08 21:06:53,697 INFO L226 Difference]: Without dead ends: 826 [2018-12-08 21:06:53,698 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 21:06:53,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2018-12-08 21:06:53,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 826. [2018-12-08 21:06:53,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 826 states. [2018-12-08 21:06:53,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1069 transitions. [2018-12-08 21:06:53,710 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1069 transitions. Word has length 137 [2018-12-08 21:06:53,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:06:53,710 INFO L480 AbstractCegarLoop]: Abstraction has 826 states and 1069 transitions. [2018-12-08 21:06:53,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 21:06:53,710 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1069 transitions. [2018-12-08 21:06:53,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-12-08 21:06:53,712 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:06:53,712 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:06:53,712 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:06:53,712 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:06:53,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1710204053, now seen corresponding path program 1 times [2018-12-08 21:06:53,713 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 21:06:53,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:06:53,713 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:06:53,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:06:53,713 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 21:06:53,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:06:53,755 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 21:06:53,756 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 21:06:53,756 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 21:06:53,756 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 21:06:53,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 21:06:53,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 21:06:53,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-08 21:06:53,757 INFO L87 Difference]: Start difference. First operand 826 states and 1069 transitions. Second operand 6 states. [2018-12-08 21:06:54,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:06:54,105 INFO L93 Difference]: Finished difference Result 2375 states and 3230 transitions. [2018-12-08 21:06:54,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 21:06:54,105 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 138 [2018-12-08 21:06:54,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:06:54,109 INFO L225 Difference]: With dead ends: 2375 [2018-12-08 21:06:54,109 INFO L226 Difference]: Without dead ends: 1555 [2018-12-08 21:06:54,111 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-12-08 21:06:54,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2018-12-08 21:06:54,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1531. [2018-12-08 21:06:54,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1531 states. [2018-12-08 21:06:54,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1531 states to 1531 states and 1928 transitions. [2018-12-08 21:06:54,139 INFO L78 Accepts]: Start accepts. Automaton has 1531 states and 1928 transitions. Word has length 138 [2018-12-08 21:06:54,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:06:54,139 INFO L480 AbstractCegarLoop]: Abstraction has 1531 states and 1928 transitions. [2018-12-08 21:06:54,139 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 21:06:54,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1531 states and 1928 transitions. [2018-12-08 21:06:54,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-12-08 21:06:54,141 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:06:54,142 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:06:54,142 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:06:54,142 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:06:54,142 INFO L82 PathProgramCache]: Analyzing trace with hash -2034569339, now seen corresponding path program 1 times [2018-12-08 21:06:54,142 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 21:06:54,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:06:54,143 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:06:54,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:06:54,143 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 21:06:54,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:06:54,202 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-08 21:06:54,202 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 21:06:54,202 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 21:06:54,203 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 147 with the following transitions: [2018-12-08 21:06:54,205 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [77], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [605], [607], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-08 21:06:54,238 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 21:06:54,238 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 21:06:54,525 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 21:06:54,526 INFO L272 AbstractInterpreter]: Visited 120 different actions 120 times. Never merged. Never widened. Performed 1602 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1602 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 42 variables. [2018-12-08 21:06:54,531 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:06:54,531 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 21:06:54,749 INFO L227 lantSequenceWeakener]: Weakened 140 states. On average, predicates are now at 80.47% of their original sizes. [2018-12-08 21:06:54,749 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 21:06:54,769 INFO L418 sIntCurrentIteration]: We unified 145 AI predicates to 145 [2018-12-08 21:06:54,769 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 21:06:54,770 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 21:06:54,770 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 8 [2018-12-08 21:06:54,770 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 21:06:54,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 21:06:54,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 21:06:54,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-08 21:06:54,771 INFO L87 Difference]: Start difference. First operand 1531 states and 1928 transitions. Second operand 6 states. [2018-12-08 21:06:56,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:06:56,138 INFO L93 Difference]: Finished difference Result 3192 states and 4018 transitions. [2018-12-08 21:06:56,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 21:06:56,138 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2018-12-08 21:06:56,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:06:56,142 INFO L225 Difference]: With dead ends: 3192 [2018-12-08 21:06:56,142 INFO L226 Difference]: Without dead ends: 1667 [2018-12-08 21:06:56,144 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 146 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-08 21:06:56,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667 states. [2018-12-08 21:06:56,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 1666. [2018-12-08 21:06:56,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1666 states. [2018-12-08 21:06:56,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1666 states to 1666 states and 2069 transitions. [2018-12-08 21:06:56,172 INFO L78 Accepts]: Start accepts. Automaton has 1666 states and 2069 transitions. Word has length 146 [2018-12-08 21:06:56,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:06:56,173 INFO L480 AbstractCegarLoop]: Abstraction has 1666 states and 2069 transitions. [2018-12-08 21:06:56,173 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 21:06:56,173 INFO L276 IsEmpty]: Start isEmpty. Operand 1666 states and 2069 transitions. [2018-12-08 21:06:56,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-12-08 21:06:56,175 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:06:56,175 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:06:56,176 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:06:56,176 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:06:56,176 INFO L82 PathProgramCache]: Analyzing trace with hash -2025242208, now seen corresponding path program 1 times [2018-12-08 21:06:56,176 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 21:06:56,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:06:56,177 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:06:56,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:06:56,177 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 21:06:56,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:06:56,230 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 21:06:56,230 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 21:06:56,230 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 21:06:56,230 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 155 with the following transitions: [2018-12-08 21:06:56,230 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [77], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [605], [607], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-08 21:06:56,233 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 21:06:56,233 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 21:06:56,405 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 21:06:56,405 INFO L272 AbstractInterpreter]: Visited 124 different actions 242 times. Merged at 4 different actions 4 times. Never widened. Performed 3208 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3208 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-12-08 21:06:56,408 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:06:56,408 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 21:06:56,595 INFO L227 lantSequenceWeakener]: Weakened 151 states. On average, predicates are now at 81.93% of their original sizes. [2018-12-08 21:06:56,595 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 21:06:56,648 INFO L418 sIntCurrentIteration]: We unified 153 AI predicates to 153 [2018-12-08 21:06:56,648 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 21:06:56,648 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 21:06:56,648 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-12-08 21:06:56,648 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 21:06:56,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-08 21:06:56,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-08 21:06:56,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-08 21:06:56,649 INFO L87 Difference]: Start difference. First operand 1666 states and 2069 transitions. Second operand 10 states. [2018-12-08 21:06:58,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:06:58,554 INFO L93 Difference]: Finished difference Result 3330 states and 4162 transitions. [2018-12-08 21:06:58,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-08 21:06:58,554 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 154 [2018-12-08 21:06:58,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:06:58,558 INFO L225 Difference]: With dead ends: 3330 [2018-12-08 21:06:58,558 INFO L226 Difference]: Without dead ends: 1805 [2018-12-08 21:06:58,560 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 161 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-12-08 21:06:58,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1805 states. [2018-12-08 21:06:58,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1805 to 1803. [2018-12-08 21:06:58,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1803 states. [2018-12-08 21:06:58,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1803 states to 1803 states and 2216 transitions. [2018-12-08 21:06:58,587 INFO L78 Accepts]: Start accepts. Automaton has 1803 states and 2216 transitions. Word has length 154 [2018-12-08 21:06:58,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:06:58,587 INFO L480 AbstractCegarLoop]: Abstraction has 1803 states and 2216 transitions. [2018-12-08 21:06:58,587 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-08 21:06:58,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1803 states and 2216 transitions. [2018-12-08 21:06:58,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2018-12-08 21:06:58,590 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:06:58,590 INFO L402 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:06:58,590 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:06:58,590 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:06:58,590 INFO L82 PathProgramCache]: Analyzing trace with hash -495827166, now seen corresponding path program 1 times [2018-12-08 21:06:58,590 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 21:06:58,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:06:58,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:06:58,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:06:58,591 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 21:06:58,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:06:58,644 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 85 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 21:06:58,645 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 21:06:58,645 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 21:06:58,645 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 188 with the following transitions: [2018-12-08 21:06:58,645 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [77], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [605], [607], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-08 21:06:58,647 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 21:06:58,647 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 21:06:58,752 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 21:06:58,752 INFO L272 AbstractInterpreter]: Visited 124 different actions 242 times. Merged at 4 different actions 4 times. Never widened. Performed 3261 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3261 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-12-08 21:06:58,760 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:06:58,760 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 21:06:58,941 INFO L227 lantSequenceWeakener]: Weakened 184 states. On average, predicates are now at 81.87% of their original sizes. [2018-12-08 21:06:58,942 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 21:06:58,981 INFO L418 sIntCurrentIteration]: We unified 186 AI predicates to 186 [2018-12-08 21:06:58,981 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 21:06:58,981 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 21:06:58,981 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-12-08 21:06:58,981 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 21:06:58,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-08 21:06:58,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-08 21:06:58,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-08 21:06:58,982 INFO L87 Difference]: Start difference. First operand 1803 states and 2216 transitions. Second operand 10 states. [2018-12-08 21:07:00,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:07:00,699 INFO L93 Difference]: Finished difference Result 3741 states and 4629 transitions. [2018-12-08 21:07:00,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-08 21:07:00,700 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 187 [2018-12-08 21:07:00,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:07:00,703 INFO L225 Difference]: With dead ends: 3741 [2018-12-08 21:07:00,703 INFO L226 Difference]: Without dead ends: 2216 [2018-12-08 21:07:00,705 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 195 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-12-08 21:07:00,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2216 states. [2018-12-08 21:07:00,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2216 to 2214. [2018-12-08 21:07:00,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2214 states. [2018-12-08 21:07:00,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2214 states to 2214 states and 2649 transitions. [2018-12-08 21:07:00,737 INFO L78 Accepts]: Start accepts. Automaton has 2214 states and 2649 transitions. Word has length 187 [2018-12-08 21:07:00,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:07:00,738 INFO L480 AbstractCegarLoop]: Abstraction has 2214 states and 2649 transitions. [2018-12-08 21:07:00,738 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-08 21:07:00,738 INFO L276 IsEmpty]: Start isEmpty. Operand 2214 states and 2649 transitions. [2018-12-08 21:07:00,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-12-08 21:07:00,741 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:07:00,741 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:07:00,741 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:07:00,741 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:07:00,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1940598937, now seen corresponding path program 1 times [2018-12-08 21:07:00,741 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 21:07:00,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:07:00,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:07:00,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:07:00,742 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 21:07:00,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:07:00,810 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 71 proven. 31 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-08 21:07:00,810 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 21:07:00,810 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 21:07:00,811 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 196 with the following transitions: [2018-12-08 21:07:00,811 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [77], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [605], [607], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-08 21:07:00,814 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 21:07:00,814 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 21:07:00,983 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 21:07:00,983 INFO L272 AbstractInterpreter]: Visited 125 different actions 375 times. Merged at 7 different actions 20 times. Never widened. Performed 5054 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5054 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 5 fixpoints after 3 different actions. Largest state had 42 variables. [2018-12-08 21:07:00,984 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:07:00,984 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 21:07:01,127 INFO L227 lantSequenceWeakener]: Weakened 192 states. On average, predicates are now at 83.61% of their original sizes. [2018-12-08 21:07:01,127 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 21:07:01,179 INFO L418 sIntCurrentIteration]: We unified 194 AI predicates to 194 [2018-12-08 21:07:01,179 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 21:07:01,179 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 21:07:01,179 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2018-12-08 21:07:01,179 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 21:07:01,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-08 21:07:01,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-08 21:07:01,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-08 21:07:01,180 INFO L87 Difference]: Start difference. First operand 2214 states and 2649 transitions. Second operand 9 states. [2018-12-08 21:07:03,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:07:03,061 INFO L93 Difference]: Finished difference Result 3055 states and 3661 transitions. [2018-12-08 21:07:03,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-08 21:07:03,061 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 195 [2018-12-08 21:07:03,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:07:03,067 INFO L225 Difference]: With dead ends: 3055 [2018-12-08 21:07:03,067 INFO L226 Difference]: Without dead ends: 3053 [2018-12-08 21:07:03,068 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 201 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2018-12-08 21:07:03,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3053 states. [2018-12-08 21:07:03,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3053 to 3040. [2018-12-08 21:07:03,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3040 states. [2018-12-08 21:07:03,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3040 states to 3040 states and 3646 transitions. [2018-12-08 21:07:03,105 INFO L78 Accepts]: Start accepts. Automaton has 3040 states and 3646 transitions. Word has length 195 [2018-12-08 21:07:03,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:07:03,105 INFO L480 AbstractCegarLoop]: Abstraction has 3040 states and 3646 transitions. [2018-12-08 21:07:03,105 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-08 21:07:03,106 INFO L276 IsEmpty]: Start isEmpty. Operand 3040 states and 3646 transitions. [2018-12-08 21:07:03,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2018-12-08 21:07:03,110 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:07:03,110 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:07:03,110 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:07:03,110 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:07:03,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1302735996, now seen corresponding path program 1 times [2018-12-08 21:07:03,110 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 21:07:03,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:07:03,111 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:07:03,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:07:03,111 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 21:07:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:07:03,216 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 79 proven. 38 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-12-08 21:07:03,217 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 21:07:03,217 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 21:07:03,217 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 203 with the following transitions: [2018-12-08 21:07:03,217 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [45], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [605], [607], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-08 21:07:03,219 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 21:07:03,219 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 21:07:03,491 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 21:07:03,491 INFO L272 AbstractInterpreter]: Visited 127 different actions 505 times. Merged at 8 different actions 30 times. Never widened. Performed 7097 root evaluator evaluations with a maximum evaluation depth of 3. Performed 7097 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 8 fixpoints after 2 different actions. Largest state had 42 variables. [2018-12-08 21:07:03,493 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:07:03,493 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 21:07:03,494 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 21:07:03,494 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_979a874e-ea4e-4b83-83ce-e612b5402aa2/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 21:07:03,500 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:07:03,500 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 21:07:03,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:07:03,561 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 21:07:03,634 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 96 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2018-12-08 21:07:03,634 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 21:07:03,718 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 84 proven. 31 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-12-08 21:07:03,734 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 21:07:03,734 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2018-12-08 21:07:03,734 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 21:07:03,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-08 21:07:03,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-08 21:07:03,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-12-08 21:07:03,735 INFO L87 Difference]: Start difference. First operand 3040 states and 3646 transitions. Second operand 11 states. [2018-12-08 21:07:04,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:07:04,805 INFO L93 Difference]: Finished difference Result 8866 states and 11039 transitions. [2018-12-08 21:07:04,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-08 21:07:04,806 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 202 [2018-12-08 21:07:04,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:07:04,816 INFO L225 Difference]: With dead ends: 8866 [2018-12-08 21:07:04,816 INFO L226 Difference]: Without dead ends: 6378 [2018-12-08 21:07:04,820 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 407 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2018-12-08 21:07:04,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6378 states. [2018-12-08 21:07:04,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6378 to 6372. [2018-12-08 21:07:04,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6372 states. [2018-12-08 21:07:04,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6372 states to 6372 states and 7694 transitions. [2018-12-08 21:07:04,904 INFO L78 Accepts]: Start accepts. Automaton has 6372 states and 7694 transitions. Word has length 202 [2018-12-08 21:07:04,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:07:04,904 INFO L480 AbstractCegarLoop]: Abstraction has 6372 states and 7694 transitions. [2018-12-08 21:07:04,904 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-08 21:07:04,904 INFO L276 IsEmpty]: Start isEmpty. Operand 6372 states and 7694 transitions. [2018-12-08 21:07:04,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-12-08 21:07:04,911 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:07:04,911 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:07:04,911 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:07:04,911 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:07:04,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1598439036, now seen corresponding path program 1 times [2018-12-08 21:07:04,912 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 21:07:04,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:07:04,912 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:07:04,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:07:04,913 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 21:07:04,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:07:04,979 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 124 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-12-08 21:07:04,979 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 21:07:04,979 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 21:07:04,979 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 212 with the following transitions: [2018-12-08 21:07:04,980 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [45], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [173], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [605], [607], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-08 21:07:04,982 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 21:07:04,982 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 21:07:05,159 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 21:07:05,159 INFO L272 AbstractInterpreter]: Visited 126 different actions 370 times. Merged at 6 different actions 12 times. Never widened. Performed 4884 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4884 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 2 different actions. Largest state had 42 variables. [2018-12-08 21:07:05,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:07:05,161 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 21:07:05,299 INFO L227 lantSequenceWeakener]: Weakened 208 states. On average, predicates are now at 83.47% of their original sizes. [2018-12-08 21:07:05,299 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 21:07:05,338 INFO L418 sIntCurrentIteration]: We unified 210 AI predicates to 210 [2018-12-08 21:07:05,338 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 21:07:05,338 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 21:07:05,338 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-12-08 21:07:05,338 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 21:07:05,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-08 21:07:05,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-08 21:07:05,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-08 21:07:05,339 INFO L87 Difference]: Start difference. First operand 6372 states and 7694 transitions. Second operand 10 states. [2018-12-08 21:07:07,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:07:07,720 INFO L93 Difference]: Finished difference Result 12736 states and 15481 transitions. [2018-12-08 21:07:07,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-08 21:07:07,720 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 211 [2018-12-08 21:07:07,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:07:07,730 INFO L225 Difference]: With dead ends: 12736 [2018-12-08 21:07:07,730 INFO L226 Difference]: Without dead ends: 7059 [2018-12-08 21:07:07,736 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 218 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-12-08 21:07:07,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7059 states. [2018-12-08 21:07:07,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7059 to 7055. [2018-12-08 21:07:07,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7055 states. [2018-12-08 21:07:07,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7055 states to 7055 states and 8462 transitions. [2018-12-08 21:07:07,825 INFO L78 Accepts]: Start accepts. Automaton has 7055 states and 8462 transitions. Word has length 211 [2018-12-08 21:07:07,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:07:07,825 INFO L480 AbstractCegarLoop]: Abstraction has 7055 states and 8462 transitions. [2018-12-08 21:07:07,825 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-08 21:07:07,825 INFO L276 IsEmpty]: Start isEmpty. Operand 7055 states and 8462 transitions. [2018-12-08 21:07:07,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2018-12-08 21:07:07,835 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:07:07,835 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:07:07,835 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:07:07,835 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:07:07,836 INFO L82 PathProgramCache]: Analyzing trace with hash 631030518, now seen corresponding path program 1 times [2018-12-08 21:07:07,836 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 21:07:07,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:07:07,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:07:07,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:07:07,836 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 21:07:07,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:07:07,938 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 150 proven. 2 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-12-08 21:07:07,938 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 21:07:07,938 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 21:07:07,939 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 228 with the following transitions: [2018-12-08 21:07:07,939 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [45], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [105], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [605], [607], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-08 21:07:07,941 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 21:07:07,941 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 21:07:08,196 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 21:07:08,196 INFO L272 AbstractInterpreter]: Visited 127 different actions 501 times. Merged at 8 different actions 26 times. Never widened. Performed 7190 root evaluator evaluations with a maximum evaluation depth of 3. Performed 7190 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 7 fixpoints after 2 different actions. Largest state had 42 variables. [2018-12-08 21:07:08,200 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:07:08,200 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 21:07:08,200 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 21:07:08,200 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_979a874e-ea4e-4b83-83ce-e612b5402aa2/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 21:07:08,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:07:08,209 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 21:07:08,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:07:08,259 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 21:07:08,291 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 134 proven. 14 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2018-12-08 21:07:08,292 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 21:07:08,340 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 146 proven. 2 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2018-12-08 21:07:08,355 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 21:07:08,355 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2018-12-08 21:07:08,355 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 21:07:08,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 21:07:08,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 21:07:08,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-12-08 21:07:08,355 INFO L87 Difference]: Start difference. First operand 7055 states and 8462 transitions. Second operand 8 states. [2018-12-08 21:07:09,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:07:09,179 INFO L93 Difference]: Finished difference Result 13732 states and 17056 transitions. [2018-12-08 21:07:09,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-08 21:07:09,179 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 227 [2018-12-08 21:07:09,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:07:09,193 INFO L225 Difference]: With dead ends: 13732 [2018-12-08 21:07:09,193 INFO L226 Difference]: Without dead ends: 8055 [2018-12-08 21:07:09,198 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 463 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=370, Unknown=0, NotChecked=0, Total=506 [2018-12-08 21:07:09,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8055 states. [2018-12-08 21:07:09,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8055 to 7137. [2018-12-08 21:07:09,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7137 states. [2018-12-08 21:07:09,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7137 states to 7137 states and 8432 transitions. [2018-12-08 21:07:09,286 INFO L78 Accepts]: Start accepts. Automaton has 7137 states and 8432 transitions. Word has length 227 [2018-12-08 21:07:09,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:07:09,287 INFO L480 AbstractCegarLoop]: Abstraction has 7137 states and 8432 transitions. [2018-12-08 21:07:09,287 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 21:07:09,287 INFO L276 IsEmpty]: Start isEmpty. Operand 7137 states and 8432 transitions. [2018-12-08 21:07:09,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2018-12-08 21:07:09,294 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:07:09,294 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:07:09,295 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:07:09,295 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:07:09,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1225400414, now seen corresponding path program 1 times [2018-12-08 21:07:09,295 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 21:07:09,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:07:09,296 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:07:09,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:07:09,296 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 21:07:09,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:07:09,387 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 165 proven. 52 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-12-08 21:07:09,387 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 21:07:09,387 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 21:07:09,387 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 238 with the following transitions: [2018-12-08 21:07:09,387 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [41], [42], [46], [50], [54], [58], [62], [66], [70], [74], [77], [78], [82], [86], [90], [94], [98], [102], [105], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [605], [607], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-08 21:07:09,389 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 21:07:09,389 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 21:07:09,617 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 21:07:09,618 INFO L272 AbstractInterpreter]: Visited 127 different actions 508 times. Merged at 8 different actions 33 times. Widened at 1 different actions 1 times. Performed 7095 root evaluator evaluations with a maximum evaluation depth of 3. Performed 7095 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 8 fixpoints after 3 different actions. Largest state had 42 variables. [2018-12-08 21:07:09,620 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:07:09,620 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 21:07:09,620 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 21:07:09,621 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_979a874e-ea4e-4b83-83ce-e612b5402aa2/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 21:07:09,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:07:09,627 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 21:07:09,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:07:09,675 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 21:07:09,709 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 178 proven. 2 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2018-12-08 21:07:09,709 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 21:07:09,763 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 178 proven. 2 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2018-12-08 21:07:09,787 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 21:07:09,788 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 13 [2018-12-08 21:07:09,788 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 21:07:09,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-08 21:07:09,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-08 21:07:09,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-12-08 21:07:09,788 INFO L87 Difference]: Start difference. First operand 7137 states and 8432 transitions. Second operand 12 states. [2018-12-08 21:07:11,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:07:11,135 INFO L93 Difference]: Finished difference Result 13793 states and 17724 transitions. [2018-12-08 21:07:11,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-12-08 21:07:11,135 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 237 [2018-12-08 21:07:11,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:07:11,150 INFO L225 Difference]: With dead ends: 13793 [2018-12-08 21:07:11,150 INFO L226 Difference]: Without dead ends: 7627 [2018-12-08 21:07:11,157 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 537 GetRequests, 491 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=418, Invalid=1652, Unknown=0, NotChecked=0, Total=2070 [2018-12-08 21:07:11,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7627 states. [2018-12-08 21:07:11,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7627 to 6800. [2018-12-08 21:07:11,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6800 states. [2018-12-08 21:07:11,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6800 states to 6800 states and 7743 transitions. [2018-12-08 21:07:11,308 INFO L78 Accepts]: Start accepts. Automaton has 6800 states and 7743 transitions. Word has length 237 [2018-12-08 21:07:11,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:07:11,308 INFO L480 AbstractCegarLoop]: Abstraction has 6800 states and 7743 transitions. [2018-12-08 21:07:11,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-08 21:07:11,308 INFO L276 IsEmpty]: Start isEmpty. Operand 6800 states and 7743 transitions. [2018-12-08 21:07:11,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2018-12-08 21:07:11,314 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:07:11,315 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:07:11,315 INFO L423 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:07:11,315 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:07:11,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1307278761, now seen corresponding path program 1 times [2018-12-08 21:07:11,315 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 21:07:11,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:07:11,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:07:11,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:07:11,315 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 21:07:11,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:07:11,433 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 162 proven. 93 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-12-08 21:07:11,433 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 21:07:11,433 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 21:07:11,433 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 254 with the following transitions: [2018-12-08 21:07:11,433 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [34], [38], [41], [42], [46], [49], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [129], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [173], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [605], [607], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-08 21:07:11,435 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 21:07:11,435 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 21:07:11,754 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 21:07:11,754 INFO L272 AbstractInterpreter]: Visited 128 different actions 632 times. Merged at 9 different actions 36 times. Never widened. Performed 8796 root evaluator evaluations with a maximum evaluation depth of 3. Performed 8796 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 13 fixpoints after 4 different actions. Largest state had 42 variables. [2018-12-08 21:07:11,756 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:07:11,756 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 21:07:11,756 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 21:07:11,756 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_979a874e-ea4e-4b83-83ce-e612b5402aa2/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 21:07:11,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:07:11,762 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 21:07:11,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:07:11,811 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 21:07:11,853 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 208 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-12-08 21:07:11,853 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 21:07:11,909 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 208 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-12-08 21:07:11,924 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 21:07:11,924 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2018-12-08 21:07:11,924 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 21:07:11,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-08 21:07:11,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-08 21:07:11,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2018-12-08 21:07:11,925 INFO L87 Difference]: Start difference. First operand 6800 states and 7743 transitions. Second operand 12 states. [2018-12-08 21:07:13,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:07:13,513 INFO L93 Difference]: Finished difference Result 12919 states and 15090 transitions. [2018-12-08 21:07:13,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-12-08 21:07:13,513 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 253 [2018-12-08 21:07:13,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:07:13,524 INFO L225 Difference]: With dead ends: 12919 [2018-12-08 21:07:13,524 INFO L226 Difference]: Without dead ends: 6234 [2018-12-08 21:07:13,534 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 571 GetRequests, 528 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=385, Invalid=1507, Unknown=0, NotChecked=0, Total=1892 [2018-12-08 21:07:13,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6234 states. [2018-12-08 21:07:13,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6234 to 4671. [2018-12-08 21:07:13,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4671 states. [2018-12-08 21:07:13,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4671 states to 4671 states and 5155 transitions. [2018-12-08 21:07:13,592 INFO L78 Accepts]: Start accepts. Automaton has 4671 states and 5155 transitions. Word has length 253 [2018-12-08 21:07:13,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:07:13,592 INFO L480 AbstractCegarLoop]: Abstraction has 4671 states and 5155 transitions. [2018-12-08 21:07:13,593 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-08 21:07:13,593 INFO L276 IsEmpty]: Start isEmpty. Operand 4671 states and 5155 transitions. [2018-12-08 21:07:13,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2018-12-08 21:07:13,597 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:07:13,597 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:07:13,598 INFO L423 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:07:13,598 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:07:13,598 INFO L82 PathProgramCache]: Analyzing trace with hash 1500745214, now seen corresponding path program 1 times [2018-12-08 21:07:13,598 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 21:07:13,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:07:13,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:07:13,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:07:13,598 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 21:07:13,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:07:13,704 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 229 proven. 112 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-12-08 21:07:13,704 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 21:07:13,704 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 21:07:13,705 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 272 with the following transitions: [2018-12-08 21:07:13,705 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [33], [34], [37], [38], [42], [46], [50], [53], [54], [58], [62], [66], [70], [74], [77], [78], [82], [86], [90], [94], [98], [102], [105], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [605], [607], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-08 21:07:13,706 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 21:07:13,706 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 21:07:13,975 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 21:07:13,975 INFO L272 AbstractInterpreter]: Visited 129 different actions 512 times. Merged at 10 different actions 29 times. Never widened. Performed 7299 root evaluator evaluations with a maximum evaluation depth of 3. Performed 7299 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 11 fixpoints after 5 different actions. Largest state had 42 variables. [2018-12-08 21:07:13,976 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:07:13,976 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 21:07:13,976 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 21:07:13,977 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_979a874e-ea4e-4b83-83ce-e612b5402aa2/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 21:07:13,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:07:13,982 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 21:07:14,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:07:14,036 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 21:07:14,065 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2018-12-08 21:07:14,065 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 21:07:14,123 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2018-12-08 21:07:14,148 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-08 21:07:14,148 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [9] total 10 [2018-12-08 21:07:14,148 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 21:07:14,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 21:07:14,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 21:07:14,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-12-08 21:07:14,149 INFO L87 Difference]: Start difference. First operand 4671 states and 5155 transitions. Second operand 3 states. [2018-12-08 21:07:14,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:07:14,356 INFO L93 Difference]: Finished difference Result 8504 states and 9427 transitions. [2018-12-08 21:07:14,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 21:07:14,356 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 271 [2018-12-08 21:07:14,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:07:14,362 INFO L225 Difference]: With dead ends: 8504 [2018-12-08 21:07:14,362 INFO L226 Difference]: Without dead ends: 4671 [2018-12-08 21:07:14,366 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 542 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-12-08 21:07:14,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4671 states. [2018-12-08 21:07:14,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4671 to 4530. [2018-12-08 21:07:14,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4530 states. [2018-12-08 21:07:14,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4530 states to 4530 states and 4975 transitions. [2018-12-08 21:07:14,410 INFO L78 Accepts]: Start accepts. Automaton has 4530 states and 4975 transitions. Word has length 271 [2018-12-08 21:07:14,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:07:14,410 INFO L480 AbstractCegarLoop]: Abstraction has 4530 states and 4975 transitions. [2018-12-08 21:07:14,410 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 21:07:14,410 INFO L276 IsEmpty]: Start isEmpty. Operand 4530 states and 4975 transitions. [2018-12-08 21:07:14,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2018-12-08 21:07:14,413 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:07:14,414 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:07:14,414 INFO L423 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:07:14,414 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:07:14,414 INFO L82 PathProgramCache]: Analyzing trace with hash 639701469, now seen corresponding path program 1 times [2018-12-08 21:07:14,414 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 21:07:14,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:07:14,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:07:14,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:07:14,415 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 21:07:14,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:07:14,484 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 256 proven. 2 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2018-12-08 21:07:14,484 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 21:07:14,484 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 21:07:14,484 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 276 with the following transitions: [2018-12-08 21:07:14,484 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [37], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [97], [98], [102], [105], [106], [109], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [605], [607], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-08 21:07:14,486 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 21:07:14,486 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 21:07:14,717 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 21:07:14,717 INFO L272 AbstractInterpreter]: Visited 128 different actions 509 times. Merged at 8 different actions 30 times. Never widened. Performed 7149 root evaluator evaluations with a maximum evaluation depth of 3. Performed 7149 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 8 fixpoints after 3 different actions. Largest state had 42 variables. [2018-12-08 21:07:14,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:07:14,718 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 21:07:14,718 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 21:07:14,718 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_979a874e-ea4e-4b83-83ce-e612b5402aa2/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 21:07:14,724 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:07:14,724 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 21:07:14,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:07:14,777 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 21:07:14,828 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 256 proven. 2 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2018-12-08 21:07:14,828 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 21:07:14,881 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 256 proven. 2 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2018-12-08 21:07:14,897 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 21:07:14,897 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-12-08 21:07:14,897 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 21:07:14,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-08 21:07:14,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-08 21:07:14,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-12-08 21:07:14,898 INFO L87 Difference]: Start difference. First operand 4530 states and 4975 transitions. Second operand 9 states. [2018-12-08 21:07:15,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:07:15,304 INFO L93 Difference]: Finished difference Result 7825 states and 8675 transitions. [2018-12-08 21:07:15,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 21:07:15,305 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 275 [2018-12-08 21:07:15,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:07:15,305 INFO L225 Difference]: With dead ends: 7825 [2018-12-08 21:07:15,305 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 21:07:15,315 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 551 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2018-12-08 21:07:15,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 21:07:15,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 21:07:15,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 21:07:15,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 21:07:15,316 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 275 [2018-12-08 21:07:15,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:07:15,316 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 21:07:15,316 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-08 21:07:15,316 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 21:07:15,316 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 21:07:15,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-08 21:07:15,344 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,397 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,400 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,420 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,436 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,461 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,467 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,468 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,498 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,508 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,528 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,528 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,529 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,531 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,533 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,536 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,538 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,564 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,580 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,587 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,672 WARN L180 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 387 DAG size of output: 290 [2018-12-08 21:07:15,684 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,685 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,728 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,744 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,756 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,771 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,777 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,782 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,783 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,800 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,813 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,828 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,830 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,837 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,904 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 21:07:15,942 WARN L180 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 408 DAG size of output: 308 [2018-12-08 21:07:17,431 WARN L180 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 253 DAG size of output: 92 [2018-12-08 21:07:18,668 WARN L180 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 284 DAG size of output: 91 [2018-12-08 21:07:19,612 WARN L180 SmtUtils]: Spent 941.00 ms on a formula simplification. DAG size of input: 298 DAG size of output: 91 [2018-12-08 21:07:19,614 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-08 21:07:19,614 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a8~0 |old(~a8~0)|) (= ~a17~0 |old(~a17~0)|) (= |old(~a7~0)| ~a7~0) (<= |old(~a8~0)| ~a8~0) (= |old(~a16~0)| ~a16~0) (= ~a20~0 |old(~a20~0)|) (= ~a21~0 |old(~a21~0)|)) [2018-12-08 21:07:19,615 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-08 21:07:19,615 INFO L448 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2018-12-08 21:07:19,615 INFO L448 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2018-12-08 21:07:19,615 INFO L448 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,615 INFO L448 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,615 INFO L448 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,615 INFO L448 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,615 INFO L448 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,615 INFO L448 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,615 INFO L448 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2018-12-08 21:07:19,615 INFO L448 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2018-12-08 21:07:19,616 INFO L448 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2018-12-08 21:07:19,616 INFO L448 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2018-12-08 21:07:19,616 INFO L448 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2018-12-08 21:07:19,616 INFO L448 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2018-12-08 21:07:19,616 INFO L448 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2018-12-08 21:07:19,616 INFO L448 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2018-12-08 21:07:19,616 INFO L448 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2018-12-08 21:07:19,616 INFO L448 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2018-12-08 21:07:19,616 INFO L448 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,616 INFO L448 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,616 INFO L448 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,617 INFO L448 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,617 INFO L448 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,617 INFO L448 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,617 INFO L448 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2018-12-08 21:07:19,617 INFO L448 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2018-12-08 21:07:19,617 INFO L448 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2018-12-08 21:07:19,617 INFO L448 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2018-12-08 21:07:19,617 INFO L448 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2018-12-08 21:07:19,617 INFO L448 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2018-12-08 21:07:19,617 INFO L448 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2018-12-08 21:07:19,617 INFO L448 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2018-12-08 21:07:19,617 INFO L448 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2018-12-08 21:07:19,618 INFO L448 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2018-12-08 21:07:19,618 INFO L448 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2018-12-08 21:07:19,618 INFO L448 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2018-12-08 21:07:19,618 INFO L448 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2018-12-08 21:07:19,618 INFO L448 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2018-12-08 21:07:19,618 INFO L448 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2018-12-08 21:07:19,618 INFO L448 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,618 INFO L448 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,618 INFO L448 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,618 INFO L448 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,618 INFO L448 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,618 INFO L448 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2018-12-08 21:07:19,619 INFO L448 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2018-12-08 21:07:19,619 INFO L448 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2018-12-08 21:07:19,619 INFO L448 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2018-12-08 21:07:19,619 INFO L448 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2018-12-08 21:07:19,619 INFO L448 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2018-12-08 21:07:19,619 INFO L448 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2018-12-08 21:07:19,619 INFO L448 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2018-12-08 21:07:19,619 INFO L448 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2018-12-08 21:07:19,619 INFO L448 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,619 INFO L448 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,619 INFO L448 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,619 INFO L448 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,620 INFO L448 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,620 INFO L448 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2018-12-08 21:07:19,620 INFO L448 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2018-12-08 21:07:19,620 INFO L448 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2018-12-08 21:07:19,620 INFO L448 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2018-12-08 21:07:19,620 INFO L448 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2018-12-08 21:07:19,620 INFO L448 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2018-12-08 21:07:19,620 INFO L448 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2018-12-08 21:07:19,620 INFO L448 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2018-12-08 21:07:19,620 INFO L448 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2018-12-08 21:07:19,620 INFO L448 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2018-12-08 21:07:19,620 INFO L448 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2018-12-08 21:07:19,621 INFO L448 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2018-12-08 21:07:19,621 INFO L448 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2018-12-08 21:07:19,621 INFO L448 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,621 INFO L448 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,621 INFO L448 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,621 INFO L448 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,621 INFO L448 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,621 INFO L448 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2018-12-08 21:07:19,621 INFO L448 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2018-12-08 21:07:19,621 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2018-12-08 21:07:19,621 INFO L448 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2018-12-08 21:07:19,621 INFO L448 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2018-12-08 21:07:19,622 INFO L448 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2018-12-08 21:07:19,622 INFO L448 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2018-12-08 21:07:19,622 INFO L448 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2018-12-08 21:07:19,622 INFO L448 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2018-12-08 21:07:19,622 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,622 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,622 INFO L448 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,622 INFO L448 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,622 INFO L448 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,622 INFO L448 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,622 INFO L448 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2018-12-08 21:07:19,622 INFO L448 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,622 INFO L448 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2018-12-08 21:07:19,623 INFO L448 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2018-12-08 21:07:19,623 INFO L448 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2018-12-08 21:07:19,623 INFO L448 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2018-12-08 21:07:19,623 INFO L448 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2018-12-08 21:07:19,623 INFO L448 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2018-12-08 21:07:19,623 INFO L448 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2018-12-08 21:07:19,623 INFO L448 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2018-12-08 21:07:19,623 INFO L448 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2018-12-08 21:07:19,623 INFO L448 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2018-12-08 21:07:19,623 INFO L448 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2018-12-08 21:07:19,623 INFO L448 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2018-12-08 21:07:19,623 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2018-12-08 21:07:19,624 INFO L448 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,624 INFO L448 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,624 INFO L448 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,624 INFO L448 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,624 INFO L448 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,624 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2018-12-08 21:07:19,624 INFO L448 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2018-12-08 21:07:19,624 INFO L448 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2018-12-08 21:07:19,624 INFO L448 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2018-12-08 21:07:19,624 INFO L448 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2018-12-08 21:07:19,624 INFO L448 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2018-12-08 21:07:19,624 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2018-12-08 21:07:19,625 INFO L448 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2018-12-08 21:07:19,625 INFO L448 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,625 INFO L448 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,625 INFO L448 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,625 INFO L448 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,625 INFO L448 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,625 INFO L448 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2018-12-08 21:07:19,625 INFO L448 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2018-12-08 21:07:19,625 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2018-12-08 21:07:19,625 INFO L448 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2018-12-08 21:07:19,625 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 518) no Hoare annotation was computed. [2018-12-08 21:07:19,626 INFO L448 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2018-12-08 21:07:19,626 INFO L448 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2018-12-08 21:07:19,626 INFO L448 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2018-12-08 21:07:19,626 INFO L448 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2018-12-08 21:07:19,626 INFO L448 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2018-12-08 21:07:19,626 INFO L448 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2018-12-08 21:07:19,626 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse15 (= 1 ~a21~0)) (.cse16 (<= |old(~a8~0)| ~a8~0)) (.cse4 (= |old(~a16~0)| ~a16~0)) (.cse14 (<= ~a8~0 |old(~a8~0)|)) (.cse5 (= ~a17~0 |old(~a17~0)|)) (.cse6 (<= ~a21~0 |old(~a21~0)|)) (.cse7 (= |old(~a7~0)| ~a7~0)) (.cse8 (= ~a20~0 |old(~a20~0)|)) (.cse27 (= 1 |old(~a17~0)|)) (.cse25 (= 4 |old(~a16~0)|))) (let ((.cse2 (not .cse25)) (.cse21 (< 4 |old(~a16~0)|)) (.cse9 (not .cse27)) (.cse18 (and .cse4 .cse14 .cse5 .cse6 .cse7 .cse8)) (.cse22 (< 0 |old(~a21~0)|)) (.cse20 (and .cse4 (= ~a21~0 |old(~a21~0)|) .cse14 .cse5 .cse7 .cse16 .cse8)) (.cse19 (< 14 |old(~a8~0)|)) (.cse0 (= 1 |old(~a7~0)|)) (.cse29 (< |old(~a8~0)| 15)) (.cse24 (= 6 |old(~a16~0)|)) (.cse26 (< |old(~a8~0)| 14)) (.cse28 (and .cse4 .cse14 .cse5 .cse7 .cse16 .cse15 .cse8)) (.cse23 (< 0 |old(~a20~0)|)) (.cse10 (not (= 0 |old(~a7~0)|))) (.cse11 (not (= 1 |old(~a21~0)|))) (.cse17 (= ~a20~0 1)) (.cse3 (not (= 8 ~a12~0))) (.cse12 (= |calculate_output_#in~input| 0)) (.cse1 (not (= 1 |old(~a20~0)|))) (.cse13 (not (= 15 |old(~a8~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5 .cse6 .cse7 .cse8) .cse9) (or .cse10 .cse11 .cse3 .cse12 .cse1 .cse13 (not (= 5 |old(~a16~0)|)) (and .cse14 .cse15 .cse5 .cse7 .cse16 .cse17 (= ~a16~0 5))) (or .cse0 .cse1 .cse18 .cse2 .cse3 .cse19) (or .cse20 .cse21 .cse3 .cse19 .cse22 .cse23) (or .cse24 .cse11 .cse25 .cse26 .cse3 .cse27 .cse28 .cse19) (or .cse19 .cse20 (or .cse1 .cse21 .cse3 .cse9)) (or .cse11 .cse28 (or .cse0 .cse25 .cse1 .cse3 .cse27) .cse29) (or .cse0 .cse1 .cse18 .cse3 .cse19 .cse9) (or .cse25 .cse3 (< |old(~a20~0)| 1) .cse27 .cse19 .cse22 .cse20) (or (or .cse10 .cse11 .cse13 .cse3 .cse12 .cse23) .cse28) (or .cse24 .cse0 .cse18 .cse3 .cse27 .cse19 .cse23) (or (or .cse24 .cse1 .cse3 .cse22) .cse20 .cse19) (or .cse24 .cse11 .cse0 .cse3 .cse28 .cse29 .cse23) (or .cse24 .cse11 .cse26 .cse28 .cse3 .cse27 .cse23) (or .cse10 .cse11 (and .cse4 .cse14 .cse15 .cse5 .cse7 .cse16 .cse17) .cse3 .cse12 .cse1 .cse13 .cse27)))) [2018-12-08 21:07:19,626 INFO L448 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2018-12-08 21:07:19,627 INFO L448 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,627 INFO L448 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,627 INFO L448 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,627 INFO L448 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,627 INFO L448 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2018-12-08 21:07:19,627 INFO L448 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,627 INFO L448 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,627 INFO L448 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2018-12-08 21:07:19,627 INFO L448 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2018-12-08 21:07:19,627 INFO L448 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2018-12-08 21:07:19,627 INFO L448 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2018-12-08 21:07:19,627 INFO L448 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2018-12-08 21:07:19,628 INFO L448 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2018-12-08 21:07:19,628 INFO L448 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2018-12-08 21:07:19,628 INFO L448 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2018-12-08 21:07:19,628 INFO L448 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2018-12-08 21:07:19,628 INFO L448 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2018-12-08 21:07:19,628 INFO L448 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2018-12-08 21:07:19,628 INFO L448 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2018-12-08 21:07:19,628 INFO L448 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,628 INFO L448 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,628 INFO L448 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,628 INFO L448 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,628 INFO L448 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,629 INFO L448 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2018-12-08 21:07:19,629 INFO L448 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,629 INFO L448 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2018-12-08 21:07:19,629 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2018-12-08 21:07:19,629 INFO L448 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2018-12-08 21:07:19,629 INFO L448 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2018-12-08 21:07:19,629 INFO L448 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2018-12-08 21:07:19,629 INFO L448 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2018-12-08 21:07:19,629 INFO L448 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2018-12-08 21:07:19,629 INFO L448 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2018-12-08 21:07:19,629 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2018-12-08 21:07:19,629 INFO L448 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2018-12-08 21:07:19,629 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2018-12-08 21:07:19,630 INFO L448 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2018-12-08 21:07:19,630 INFO L448 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2018-12-08 21:07:19,630 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2018-12-08 21:07:19,630 INFO L448 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,630 INFO L448 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,630 INFO L448 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,630 INFO L448 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,630 INFO L448 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,630 INFO L448 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 21:07:19,630 INFO L448 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2018-12-08 21:07:19,630 INFO L448 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2018-12-08 21:07:19,630 INFO L448 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2018-12-08 21:07:19,630 INFO L448 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2018-12-08 21:07:19,631 INFO L448 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2018-12-08 21:07:19,631 INFO L448 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2018-12-08 21:07:19,631 INFO L448 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2018-12-08 21:07:19,631 INFO L448 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2018-12-08 21:07:19,631 INFO L448 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2018-12-08 21:07:19,631 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2018-12-08 21:07:19,631 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-08 21:07:19,631 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a7~0 0) (= ~a8~0 15) (= 1 ~a21~0) (= ~a12~0 8) (= ~a20~0 1) (= 1 ~a17~0) (= ~a16~0 5)) [2018-12-08 21:07:19,631 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-08 21:07:19,631 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-08 21:07:19,632 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0)) (not (= 1 |old(~a17~0)|)) (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (not (= 5 |old(~a16~0)|)) (and (<= ~a8~0 |old(~a8~0)|) (= 1 ~a21~0) (= ~a17~0 |old(~a17~0)|) (= |old(~a7~0)| ~a7~0) (<= |old(~a8~0)| ~a8~0) (= ~a20~0 1) (= ~a16~0 5))) [2018-12-08 21:07:19,632 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2018-12-08 21:07:19,632 INFO L444 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (let ((.cse5 (<= 14 ~a8~0)) (.cse11 (<= ~a8~0 |old(~a8~0)|)) (.cse12 (= ~a7~0 |old(~a7~0)|)) (.cse13 (<= |old(~a8~0)| ~a8~0)) (.cse14 (= ~a20~0 |old(~a20~0)|)) (.cse10 (not (= main_~input~0 0))) (.cse3 (<= ~a20~0 0)) (.cse9 (<= ~a16~0 4)) (.cse1 (not (= ~a16~0 6))) (.cse8 (<= ~a21~0 0)) (.cse18 (= 4 ~a16~0)) (.cse16 (= |old(~a20~0)| ~a20~0)) (.cse4 (<= ~a8~0 14)) (.cse17 (= 1 ~a17~0)) (.cse15 (<= 15 ~a8~0)) (.cse0 (not (= ~a7~0 1))) (.cse2 (not (= ~a17~0 1))) (.cse7 (not (= ~a16~0 4))) (.cse19 (= 1 ~a20~0)) (.cse6 (= 1 ~a21~0))) (or (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0)) (and (and (and .cse0 .cse1 .cse2) .cse3) .cse4) (not (= 1 |old(~a20~0)|)) (and .cse5 .cse1 .cse6 .cse2 .cse4 .cse7) (not (= 5 |old(~a16~0)|)) (and .cse8 .cse4 .cse3 .cse9) (and .cse10 .cse2 .cse11 .cse12 .cse13 .cse6 .cse14) (and (and (and .cse0 .cse1 .cse3) .cse15) .cse6) (and (and .cse1 .cse2 .cse3) .cse5 .cse6) (and .cse10 .cse11 .cse12 .cse13 .cse6 .cse14 (= ~a16~0 5)) (and (= ~a7~0 0) .cse10 (= ~a8~0 15) (= ~a21~0 1) .cse3) (and (and .cse16 .cse9 .cse17) .cse4) (and .cse0 .cse16 .cse18 .cse17) (and .cse4 (and .cse8 .cse19 .cse1)) (and .cse8 .cse2 .cse4 (<= 1 ~a20~0) .cse7) (not (= 0 |old(~a7~0)|)) (and .cse0 .cse16 .cse18 .cse4) (not (= 1 |old(~a17~0)|)) (and .cse0 .cse16 .cse4 .cse17) (and .cse15 (and (and .cse0 .cse2 .cse7) .cse19) .cse6) (not (= 15 |old(~a8~0)|)))) [2018-12-08 21:07:19,632 INFO L448 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2018-12-08 21:07:19,632 INFO L448 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2018-12-08 21:07:19,632 INFO L444 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse8 (<= ~a8~0 |old(~a8~0)|)) (.cse9 (= ~a7~0 |old(~a7~0)|)) (.cse10 (<= |old(~a8~0)| ~a8~0)) (.cse11 (= ~a20~0 |old(~a20~0)|)) (.cse5 (<= 14 ~a8~0)) (.cse3 (<= ~a20~0 0)) (.cse13 (<= ~a16~0 4)) (.cse1 (not (= ~a16~0 6))) (.cse12 (<= ~a21~0 0)) (.cse17 (= 4 ~a16~0)) (.cse15 (= |old(~a20~0)| ~a20~0)) (.cse4 (<= ~a8~0 14)) (.cse16 (= 1 ~a17~0)) (.cse14 (<= 15 ~a8~0)) (.cse0 (not (= ~a7~0 1))) (.cse2 (not (= ~a17~0 1))) (.cse7 (not (= ~a16~0 4))) (.cse18 (= 1 ~a20~0)) (.cse6 (= 1 ~a21~0))) (or (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0)) (and (and (and .cse0 .cse1 .cse2) .cse3) .cse4) (not (= 1 |old(~a20~0)|)) (and .cse5 .cse1 .cse6 .cse2 .cse4 .cse7) (not (= 5 |old(~a16~0)|)) (and .cse8 .cse9 .cse10 .cse6 .cse11 (= ~a16~0 5)) (and .cse12 .cse4 .cse3 .cse13) (and (not (= main_~input~0 0)) .cse2 .cse8 .cse9 .cse10 .cse6 .cse11) (and (and (and .cse0 .cse1 .cse3) .cse14) .cse6) (and (and .cse1 .cse2 .cse3) .cse5 .cse6) (and (and (= ~a7~0 0) (= ~a8~0 15) .cse3) .cse6) (and (and .cse15 .cse13 .cse16) .cse4) (and .cse0 .cse15 .cse17 .cse16) (and .cse4 (and .cse12 .cse18 .cse1)) (and .cse12 .cse2 .cse4 (<= 1 ~a20~0) .cse7) (not (= 0 |old(~a7~0)|)) (and .cse0 .cse15 .cse17 .cse4) (not (= 1 |old(~a17~0)|)) (and .cse0 .cse15 .cse4 .cse16) (and .cse14 (and (and .cse0 .cse2 .cse7) .cse18) .cse6) (not (= 15 |old(~a8~0)|)))) [2018-12-08 21:07:19,633 INFO L448 ceAbstractionStarter]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2018-12-08 21:07:19,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 09:07:19 BoogieIcfgContainer [2018-12-08 21:07:19,644 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 21:07:19,644 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 21:07:19,644 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 21:07:19,645 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 21:07:19,645 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:06:51" (3/4) ... [2018-12-08 21:07:19,648 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 21:07:19,653 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 21:07:19,653 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-12-08 21:07:19,653 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 21:07:19,662 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-08 21:07:19,662 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-08 21:07:19,686 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((!(1 == \old(a21)) || !(8 == a12)) || ((((!(a7 == 1) && !(a16 == 6)) && !(a17 == 1)) && a20 <= 0) && a8 <= 14)) || !(1 == \old(a20))) || (((((14 <= a8 && !(a16 == 6)) && 1 == a21) && !(a17 == 1)) && a8 <= 14) && !(a16 == 4))) || !(5 == \old(a16))) || (((((a8 <= \old(a8) && a7 == \old(a7)) && \old(a8) <= a8) && 1 == a21) && a20 == \old(a20)) && a16 == 5)) || (((a21 <= 0 && a8 <= 14) && a20 <= 0) && a16 <= 4)) || ((((((!(input == 0) && !(a17 == 1)) && a8 <= \old(a8)) && a7 == \old(a7)) && \old(a8) <= a8) && 1 == a21) && a20 == \old(a20))) || ((((!(a7 == 1) && !(a16 == 6)) && a20 <= 0) && 15 <= a8) && 1 == a21)) || ((((!(a16 == 6) && !(a17 == 1)) && a20 <= 0) && 14 <= a8) && 1 == a21)) || (((a7 == 0 && a8 == 15) && a20 <= 0) && 1 == a21)) || (((\old(a20) == a20 && a16 <= 4) && 1 == a17) && a8 <= 14)) || (((!(a7 == 1) && \old(a20) == a20) && 4 == a16) && 1 == a17)) || (a8 <= 14 && (a21 <= 0 && 1 == a20) && !(a16 == 6))) || ((((a21 <= 0 && !(a17 == 1)) && a8 <= 14) && 1 <= a20) && !(a16 == 4))) || !(0 == \old(a7))) || (((!(a7 == 1) && \old(a20) == a20) && 4 == a16) && a8 <= 14)) || !(1 == \old(a17))) || (((!(a7 == 1) && \old(a20) == a20) && a8 <= 14) && 1 == a17)) || ((15 <= a8 && ((!(a7 == 1) && !(a17 == 1)) && !(a16 == 4)) && 1 == a20) && 1 == a21)) || !(15 == \old(a8)) [2018-12-08 21:07:19,747 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_979a874e-ea4e-4b83-83ce-e612b5402aa2/bin-2019/utaipan/witness.graphml [2018-12-08 21:07:19,747 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 21:07:19,748 INFO L168 Benchmark]: Toolchain (without parser) took 29744.33 ms. Allocated memory was 1.0 GB in the beginning and 2.6 GB in the end (delta: 1.5 GB). Free memory was 941.7 MB in the beginning and 1.3 GB in the end (delta: -381.6 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. [2018-12-08 21:07:19,748 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 21:07:19,749 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 941.7 MB in the beginning and 1.1 GB in the end (delta: -184.4 MB). Peak memory consumption was 52.5 MB. Max. memory is 11.5 GB. [2018-12-08 21:07:19,749 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-08 21:07:19,749 INFO L168 Benchmark]: Boogie Preprocessor took 41.57 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 21:07:19,749 INFO L168 Benchmark]: RCFGBuilder took 620.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 101.3 MB). Peak memory consumption was 101.3 MB. Max. memory is 11.5 GB. [2018-12-08 21:07:19,750 INFO L168 Benchmark]: TraceAbstraction took 28629.44 ms. Allocated memory was 1.2 GB in the beginning and 2.6 GB in the end (delta: 1.4 GB). Free memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: -334.6 MB). Peak memory consumption was 1.7 GB. Max. memory is 11.5 GB. [2018-12-08 21:07:19,750 INFO L168 Benchmark]: Witness Printer took 102.69 ms. Allocated memory is still 2.6 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 11.5 GB. [2018-12-08 21:07:19,751 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 327.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 941.7 MB in the beginning and 1.1 GB in the end (delta: -184.4 MB). Peak memory consumption was 52.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.57 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 620.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 101.3 MB). Peak memory consumption was 101.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 28629.44 ms. Allocated memory was 1.2 GB in the beginning and 2.6 GB in the end (delta: 1.4 GB). Free memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: -334.6 MB). Peak memory consumption was 1.7 GB. Max. memory is 11.5 GB. * Witness Printer took 102.69 ms. Allocated memory is still 2.6 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 518]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((((((((((((((((((!(1 == \old(a21)) || !(8 == a12)) || ((((!(a7 == 1) && !(a16 == 6)) && !(a17 == 1)) && a20 <= 0) && a8 <= 14)) || !(1 == \old(a20))) || (((((14 <= a8 && !(a16 == 6)) && 1 == a21) && !(a17 == 1)) && a8 <= 14) && !(a16 == 4))) || !(5 == \old(a16))) || (((((a8 <= \old(a8) && a7 == \old(a7)) && \old(a8) <= a8) && 1 == a21) && a20 == \old(a20)) && a16 == 5)) || (((a21 <= 0 && a8 <= 14) && a20 <= 0) && a16 <= 4)) || ((((((!(input == 0) && !(a17 == 1)) && a8 <= \old(a8)) && a7 == \old(a7)) && \old(a8) <= a8) && 1 == a21) && a20 == \old(a20))) || ((((!(a7 == 1) && !(a16 == 6)) && a20 <= 0) && 15 <= a8) && 1 == a21)) || ((((!(a16 == 6) && !(a17 == 1)) && a20 <= 0) && 14 <= a8) && 1 == a21)) || (((a7 == 0 && a8 == 15) && a20 <= 0) && 1 == a21)) || (((\old(a20) == a20 && a16 <= 4) && 1 == a17) && a8 <= 14)) || (((!(a7 == 1) && \old(a20) == a20) && 4 == a16) && 1 == a17)) || (a8 <= 14 && (a21 <= 0 && 1 == a20) && !(a16 == 6))) || ((((a21 <= 0 && !(a17 == 1)) && a8 <= 14) && 1 <= a20) && !(a16 == 4))) || !(0 == \old(a7))) || (((!(a7 == 1) && \old(a20) == a20) && 4 == a16) && a8 <= 14)) || !(1 == \old(a17))) || (((!(a7 == 1) && \old(a20) == a20) && a8 <= 14) && 1 == a17)) || ((15 <= a8 && ((!(a7 == 1) && !(a17 == 1)) && !(a16 == 4)) && 1 == a20) && 1 == a21)) || !(15 == \old(a8)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. SAFE Result, 28.5s OverallTime, 17 OverallIterations, 7 TraceHistogramMax, 16.9s AutomataDifference, 0.0s DeadEndRemovalTime, 4.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 842 SDtfs, 12736 SDslu, 1088 SDs, 0 SdLazy, 15099 SolverSat, 2161 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.7s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 4108 GetRequests, 3848 SyntacticMatches, 22 SemanticMatches, 238 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1376 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7137occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.5s AbstIntTime, 11 AbstIntIterations, 5 AbstIntStrong, 0.9973502961380487 AbsIntWeakeningRatio, 0.21058558558558557 AbsIntAvgWeakeningVarsNumRemoved, 28.756756756756758 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 17 MinimizatonAttempts, 3513 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 344 PreInvPairs, 442 NumberOfFragments, 1355 HoareAnnotationTreeSize, 344 FomulaSimplifications, 52823 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 48968 FormulaSimplificationTreeSizeReductionInter, 3.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 4611 NumberOfCodeBlocks, 4611 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 6047 ConstructedInterpolants, 0 QuantifiedInterpolants, 3052540 SizeOfPredicates, 7 NumberOfNonLiveVariables, 3976 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 29 InterpolantComputations, 8 PerfectInterpolantSequences, 5093/5510 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...