./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label42_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fc1614de-506a-4a3f-9ea2-4647f01819af/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fc1614de-506a-4a3f-9ea2-4647f01819af/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fc1614de-506a-4a3f-9ea2-4647f01819af/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fc1614de-506a-4a3f-9ea2-4647f01819af/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label42_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fc1614de-506a-4a3f-9ea2-4647f01819af/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fc1614de-506a-4a3f-9ea2-4647f01819af/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 3812c831b8b49ff0b200ce5b38627f93268691f2 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 09:20:57,001 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:20:57,002 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:20:57,007 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:20:57,008 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:20:57,008 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:20:57,009 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:20:57,010 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:20:57,011 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:20:57,012 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:20:57,012 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:20:57,012 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:20:57,013 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:20:57,014 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:20:57,014 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:20:57,015 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:20:57,015 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:20:57,017 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:20:57,018 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:20:57,019 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:20:57,020 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:20:57,020 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:20:57,022 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:20:57,022 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:20:57,022 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:20:57,023 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:20:57,024 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:20:57,024 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:20:57,025 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:20:57,025 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:20:57,025 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:20:57,026 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:20:57,026 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:20:57,026 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:20:57,027 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:20:57,027 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:20:57,028 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fc1614de-506a-4a3f-9ea2-4647f01819af/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 09:20:57,037 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:20:57,038 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:20:57,038 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 09:20:57,038 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 09:20:57,038 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 09:20:57,039 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 09:20:57,039 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 09:20:57,039 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 09:20:57,039 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 09:20:57,039 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 09:20:57,039 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 09:20:57,039 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 09:20:57,040 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 09:20:57,040 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:20:57,040 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 09:20:57,040 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 09:20:57,041 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 09:20:57,041 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:20:57,041 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 09:20:57,041 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 09:20:57,041 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 09:20:57,041 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 09:20:57,041 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 09:20:57,042 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:20:57,042 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 09:20:57,042 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:20:57,042 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 09:20:57,042 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 09:20:57,042 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 09:20:57,043 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 09:20:57,043 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:20:57,043 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 09:20:57,043 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 09:20:57,043 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 09:20:57,043 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 09:20:57,043 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 09:20:57,043 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 09:20:57,044 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_fc1614de-506a-4a3f-9ea2-4647f01819af/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 -> 3812c831b8b49ff0b200ce5b38627f93268691f2 [2018-11-18 09:20:57,064 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:20:57,073 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:20:57,075 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:20:57,075 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:20:57,076 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:20:57,076 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fc1614de-506a-4a3f-9ea2-4647f01819af/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label42_true-unreach-call_false-termination.c [2018-11-18 09:20:57,114 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fc1614de-506a-4a3f-9ea2-4647f01819af/bin-2019/utaipan/data/d9bcaa947/4a63de754fad45a583de95e85d0fcaf6/FLAG4dd4ef1b3 [2018-11-18 09:20:57,557 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:20:57,558 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fc1614de-506a-4a3f-9ea2-4647f01819af/sv-benchmarks/c/eca-rers2012/Problem14_label42_true-unreach-call_false-termination.c [2018-11-18 09:20:57,567 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fc1614de-506a-4a3f-9ea2-4647f01819af/bin-2019/utaipan/data/d9bcaa947/4a63de754fad45a583de95e85d0fcaf6/FLAG4dd4ef1b3 [2018-11-18 09:20:57,578 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fc1614de-506a-4a3f-9ea2-4647f01819af/bin-2019/utaipan/data/d9bcaa947/4a63de754fad45a583de95e85d0fcaf6 [2018-11-18 09:20:57,581 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:20:57,582 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 09:20:57,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:20:57,583 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:20:57,586 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:20:57,586 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:20:57" (1/1) ... [2018-11-18 09:20:57,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@788382f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:20:57, skipping insertion in model container [2018-11-18 09:20:57,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:20:57" (1/1) ... [2018-11-18 09:20:57,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:20:57,636 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:20:57,896 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:20:57,899 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 09:20:57,981 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:20:57,992 INFO L195 MainTranslator]: Completed translation [2018-11-18 09:20:57,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:20:57 WrapperNode [2018-11-18 09:20:57,992 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 09:20:57,993 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 09:20:57,993 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 09:20:57,993 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 09:20:58,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:20:57" (1/1) ... [2018-11-18 09:20:58,065 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:20:57" (1/1) ... [2018-11-18 09:20:58,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 09:20:58,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 09:20:58,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 09:20:58,072 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 09:20:58,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:20:57" (1/1) ... [2018-11-18 09:20:58,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:20:57" (1/1) ... [2018-11-18 09:20:58,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:20:57" (1/1) ... [2018-11-18 09:20:58,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:20:57" (1/1) ... [2018-11-18 09:20:58,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:20:57" (1/1) ... [2018-11-18 09:20:58,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:20:57" (1/1) ... [2018-11-18 09:20:58,119 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:20:57" (1/1) ... [2018-11-18 09:20:58,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 09:20:58,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 09:20:58,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 09:20:58,125 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 09:20:58,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:20:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fc1614de-506a-4a3f-9ea2-4647f01819af/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 09:20:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 09:20:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 09:20:58,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 09:20:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-18 09:20:58,173 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-18 09:20:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 09:20:58,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 09:20:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 09:20:58,173 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 09:20:59,045 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 09:20:59,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:20:59 BoogieIcfgContainer [2018-11-18 09:20:59,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 09:20:59,046 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 09:20:59,046 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 09:20:59,048 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 09:20:59,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:20:57" (1/3) ... [2018-11-18 09:20:59,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@144d7d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:20:59, skipping insertion in model container [2018-11-18 09:20:59,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:20:57" (2/3) ... [2018-11-18 09:20:59,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@144d7d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:20:59, skipping insertion in model container [2018-11-18 09:20:59,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:20:59" (3/3) ... [2018-11-18 09:20:59,050 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label42_true-unreach-call_false-termination.c [2018-11-18 09:20:59,056 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 09:20:59,061 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 09:20:59,071 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 09:20:59,093 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 09:20:59,094 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 09:20:59,094 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 09:20:59,094 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 09:20:59,094 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 09:20:59,094 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 09:20:59,094 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 09:20:59,094 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 09:20:59,111 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-11-18 09:20:59,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-18 09:20:59,117 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:20:59,117 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:20:59,119 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:20:59,123 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:20:59,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1589650361, now seen corresponding path program 1 times [2018-11-18 09:20:59,124 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:20:59,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:20:59,153 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:20:59,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:20:59,153 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:20:59,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:20:59,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:20:59,321 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:20:59,322 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:20:59,322 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:20:59,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:20:59,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:20:59,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:20:59,335 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 3 states. [2018-11-18 09:21:00,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:21:00,010 INFO L93 Difference]: Finished difference Result 691 states and 1226 transitions. [2018-11-18 09:21:00,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:21:00,011 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 49 [2018-11-18 09:21:00,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:21:00,020 INFO L225 Difference]: With dead ends: 691 [2018-11-18 09:21:00,020 INFO L226 Difference]: Without dead ends: 434 [2018-11-18 09:21:00,025 INFO L604 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 [2018-11-18 09:21:00,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2018-11-18 09:21:00,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2018-11-18 09:21:00,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-11-18 09:21:00,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 765 transitions. [2018-11-18 09:21:00,077 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 765 transitions. Word has length 49 [2018-11-18 09:21:00,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:21:00,077 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 765 transitions. [2018-11-18 09:21:00,077 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:21:00,078 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 765 transitions. [2018-11-18 09:21:00,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-11-18 09:21:00,082 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:21:00,082 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:21:00,086 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:21:00,087 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:21:00,087 INFO L82 PathProgramCache]: Analyzing trace with hash 192752175, now seen corresponding path program 1 times [2018-11-18 09:21:00,087 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:21:00,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:21:00,088 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:21:00,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:21:00,088 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:21:00,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:21:00,249 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:21:00,249 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:21:00,249 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 09:21:00,249 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:21:00,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 09:21:00,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 09:21:00,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 09:21:00,251 INFO L87 Difference]: Start difference. First operand 434 states and 765 transitions. Second operand 6 states. [2018-11-18 09:21:00,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:21:00,888 INFO L93 Difference]: Finished difference Result 1062 states and 1897 transitions. [2018-11-18 09:21:00,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 09:21:00,889 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2018-11-18 09:21:00,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:21:00,892 INFO L225 Difference]: With dead ends: 1062 [2018-11-18 09:21:00,892 INFO L226 Difference]: Without dead ends: 634 [2018-11-18 09:21:00,893 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-18 09:21:00,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2018-11-18 09:21:00,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 625. [2018-11-18 09:21:00,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2018-11-18 09:21:00,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 1019 transitions. [2018-11-18 09:21:00,915 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 1019 transitions. Word has length 136 [2018-11-18 09:21:00,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:21:00,915 INFO L480 AbstractCegarLoop]: Abstraction has 625 states and 1019 transitions. [2018-11-18 09:21:00,915 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 09:21:00,915 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 1019 transitions. [2018-11-18 09:21:00,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-11-18 09:21:00,918 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:21:00,919 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:21:00,919 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:21:00,919 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:21:00,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1678139032, now seen corresponding path program 1 times [2018-11-18 09:21:00,919 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:21:00,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:21:00,920 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:21:00,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:21:00,920 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:21:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:21:01,009 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:21:01,009 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:21:01,009 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 09:21:01,009 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:21:01,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 09:21:01,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 09:21:01,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 09:21:01,010 INFO L87 Difference]: Start difference. First operand 625 states and 1019 transitions. Second operand 4 states. [2018-11-18 09:21:01,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:21:01,950 INFO L93 Difference]: Finished difference Result 2352 states and 4016 transitions. [2018-11-18 09:21:01,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 09:21:01,951 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 145 [2018-11-18 09:21:01,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:21:01,959 INFO L225 Difference]: With dead ends: 2352 [2018-11-18 09:21:01,959 INFO L226 Difference]: Without dead ends: 1733 [2018-11-18 09:21:01,963 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 09:21:01,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1733 states. [2018-11-18 09:21:01,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1733 to 1733. [2018-11-18 09:21:01,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1733 states. [2018-11-18 09:21:02,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1733 states to 1733 states and 2647 transitions. [2018-11-18 09:21:02,006 INFO L78 Accepts]: Start accepts. Automaton has 1733 states and 2647 transitions. Word has length 145 [2018-11-18 09:21:02,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:21:02,006 INFO L480 AbstractCegarLoop]: Abstraction has 1733 states and 2647 transitions. [2018-11-18 09:21:02,006 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 09:21:02,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1733 states and 2647 transitions. [2018-11-18 09:21:02,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2018-11-18 09:21:02,014 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:21:02,014 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:21:02,014 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:21:02,014 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:21:02,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1304221998, now seen corresponding path program 1 times [2018-11-18 09:21:02,014 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:21:02,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:21:02,015 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:21:02,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:21:02,015 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:21:02,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:21:02,250 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 84 proven. 107 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 09:21:02,250 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:21:02,250 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:21:02,250 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 275 with the following transitions: [2018-11-18 09:21:02,252 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [293], [295], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [662], [663], [666], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 09:21:02,277 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:21:02,277 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:21:04,255 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 09:21:04,256 INFO L272 AbstractInterpreter]: Visited 118 different actions 118 times. Never merged. Never widened. Performed 1046 root evaluator evaluations with a maximum evaluation depth of 22. Performed 1046 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Never found a fixpoint. Largest state had 24 variables. [2018-11-18 09:21:04,274 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:21:04,274 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 09:21:06,032 INFO L227 lantSequenceWeakener]: Weakened 265 states. On average, predicates are now at 77.83% of their original sizes. [2018-11-18 09:21:06,032 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 09:21:06,078 INFO L415 sIntCurrentIteration]: We unified 273 AI predicates to 273 [2018-11-18 09:21:06,078 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 09:21:06,079 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 09:21:06,079 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2018-11-18 09:21:06,079 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:21:06,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 09:21:06,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 09:21:06,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 09:21:06,080 INFO L87 Difference]: Start difference. First operand 1733 states and 2647 transitions. Second operand 6 states. [2018-11-18 09:21:17,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:21:17,601 INFO L93 Difference]: Finished difference Result 3645 states and 5568 transitions. [2018-11-18 09:21:17,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 09:21:17,601 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 274 [2018-11-18 09:21:17,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:21:17,607 INFO L225 Difference]: With dead ends: 3645 [2018-11-18 09:21:17,607 INFO L226 Difference]: Without dead ends: 1918 [2018-11-18 09:21:17,610 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 274 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 09:21:17,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1918 states. [2018-11-18 09:21:17,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1918 to 1916. [2018-11-18 09:21:17,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1916 states. [2018-11-18 09:21:17,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1916 states to 1916 states and 2838 transitions. [2018-11-18 09:21:17,636 INFO L78 Accepts]: Start accepts. Automaton has 1916 states and 2838 transitions. Word has length 274 [2018-11-18 09:21:17,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:21:17,636 INFO L480 AbstractCegarLoop]: Abstraction has 1916 states and 2838 transitions. [2018-11-18 09:21:17,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 09:21:17,637 INFO L276 IsEmpty]: Start isEmpty. Operand 1916 states and 2838 transitions. [2018-11-18 09:21:17,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2018-11-18 09:21:17,643 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:21:17,643 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:21:17,643 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:21:17,643 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:21:17,643 INFO L82 PathProgramCache]: Analyzing trace with hash -111433536, now seen corresponding path program 1 times [2018-11-18 09:21:17,644 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:21:17,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:21:17,644 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:21:17,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:21:17,645 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:21:17,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:21:18,075 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 214 proven. 189 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 09:21:18,075 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:21:18,075 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:21:18,076 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 360 with the following transitions: [2018-11-18 09:21:18,076 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [293], [295], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [662], [663], [666], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 09:21:18,079 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:21:18,079 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:21:21,402 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:21:21,402 INFO L272 AbstractInterpreter]: Visited 123 different actions 238 times. Merged at 4 different actions 4 times. Never widened. Performed 2156 root evaluator evaluations with a maximum evaluation depth of 22. Performed 2156 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-18 09:21:21,410 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:21:21,411 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:21:21,411 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:21:21,411 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fc1614de-506a-4a3f-9ea2-4647f01819af/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 09:21:21,417 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:21:21,417 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:21:21,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:21:21,496 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:21:21,715 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 312 proven. 53 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2018-11-18 09:21:21,715 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:21:22,011 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 136 proven. 267 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 09:21:22,028 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:21:22,028 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 20 [2018-11-18 09:21:22,028 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:21:22,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-18 09:21:22,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-18 09:21:22,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2018-11-18 09:21:22,029 INFO L87 Difference]: Start difference. First operand 1916 states and 2838 transitions. Second operand 15 states. [2018-11-18 09:21:24,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:21:24,330 INFO L93 Difference]: Finished difference Result 4717 states and 7036 transitions. [2018-11-18 09:21:24,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-18 09:21:24,330 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 359 [2018-11-18 09:21:24,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:21:24,347 INFO L225 Difference]: With dead ends: 4717 [2018-11-18 09:21:24,347 INFO L226 Difference]: Without dead ends: 2791 [2018-11-18 09:21:24,356 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 758 GetRequests, 724 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=301, Invalid=821, Unknown=0, NotChecked=0, Total=1122 [2018-11-18 09:21:24,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2791 states. [2018-11-18 09:21:24,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2791 to 2592. [2018-11-18 09:21:24,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2592 states. [2018-11-18 09:21:24,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2592 states to 2592 states and 3494 transitions. [2018-11-18 09:21:24,413 INFO L78 Accepts]: Start accepts. Automaton has 2592 states and 3494 transitions. Word has length 359 [2018-11-18 09:21:24,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:21:24,414 INFO L480 AbstractCegarLoop]: Abstraction has 2592 states and 3494 transitions. [2018-11-18 09:21:24,414 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-18 09:21:24,414 INFO L276 IsEmpty]: Start isEmpty. Operand 2592 states and 3494 transitions. [2018-11-18 09:21:24,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2018-11-18 09:21:24,425 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:21:24,426 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:21:24,426 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:21:24,426 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:21:24,426 INFO L82 PathProgramCache]: Analyzing trace with hash -2119199892, now seen corresponding path program 1 times [2018-11-18 09:21:24,426 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:21:24,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:21:24,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:21:24,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:21:24,427 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:21:24,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:21:25,007 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 139 proven. 316 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 09:21:25,007 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:21:25,007 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:21:25,008 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 386 with the following transitions: [2018-11-18 09:21:25,008 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [293], [295], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [659], [662], [663], [666], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 09:21:25,011 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:21:25,011 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:21:27,856 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 09:21:27,856 INFO L272 AbstractInterpreter]: Visited 122 different actions 238 times. Merged at 5 different actions 5 times. Never widened. Performed 2140 root evaluator evaluations with a maximum evaluation depth of 22. Performed 2140 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-18 09:21:27,858 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:21:27,858 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 09:21:29,480 INFO L227 lantSequenceWeakener]: Weakened 382 states. On average, predicates are now at 77.73% of their original sizes. [2018-11-18 09:21:29,481 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 09:21:29,519 INFO L415 sIntCurrentIteration]: We unified 384 AI predicates to 384 [2018-11-18 09:21:29,519 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 09:21:29,520 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 09:21:29,520 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [15] total 23 [2018-11-18 09:21:29,520 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:21:29,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 09:21:29,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 09:21:29,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 09:21:29,520 INFO L87 Difference]: Start difference. First operand 2592 states and 3494 transitions. Second operand 10 states. [2018-11-18 09:21:50,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:21:50,010 INFO L93 Difference]: Finished difference Result 4807 states and 6596 transitions. [2018-11-18 09:21:50,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 09:21:50,010 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 385 [2018-11-18 09:21:50,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:21:50,014 INFO L225 Difference]: With dead ends: 4807 [2018-11-18 09:21:50,014 INFO L226 Difference]: Without dead ends: 2404 [2018-11-18 09:21:50,018 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 392 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-11-18 09:21:50,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2404 states. [2018-11-18 09:21:50,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2404 to 2397. [2018-11-18 09:21:50,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2397 states. [2018-11-18 09:21:50,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2397 states to 2397 states and 3245 transitions. [2018-11-18 09:21:50,044 INFO L78 Accepts]: Start accepts. Automaton has 2397 states and 3245 transitions. Word has length 385 [2018-11-18 09:21:50,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:21:50,045 INFO L480 AbstractCegarLoop]: Abstraction has 2397 states and 3245 transitions. [2018-11-18 09:21:50,045 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 09:21:50,045 INFO L276 IsEmpty]: Start isEmpty. Operand 2397 states and 3245 transitions. [2018-11-18 09:21:50,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2018-11-18 09:21:50,053 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:21:50,053 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:21:50,053 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:21:50,053 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:21:50,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1255475487, now seen corresponding path program 1 times [2018-11-18 09:21:50,054 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:21:50,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:21:50,054 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:21:50,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:21:50,055 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:21:50,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:21:50,331 INFO L134 CoverageAnalysis]: Checked inductivity of 832 backedges. 400 proven. 111 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2018-11-18 09:21:50,332 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:21:50,332 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:21:50,332 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 496 with the following transitions: [2018-11-18 09:21:50,332 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [293], [295], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [662], [663], [666], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 09:21:50,335 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:21:50,335 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:21:56,675 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 09:21:56,676 INFO L272 AbstractInterpreter]: Visited 123 different actions 368 times. Merged at 7 different actions 21 times. Never widened. Performed 3495 root evaluator evaluations with a maximum evaluation depth of 22. Performed 3495 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 09:21:56,682 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:21:56,682 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 09:21:57,546 INFO L227 lantSequenceWeakener]: Weakened 492 states. On average, predicates are now at 80.28% of their original sizes. [2018-11-18 09:21:57,546 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 09:21:57,582 INFO L415 sIntCurrentIteration]: We unified 494 AI predicates to 494 [2018-11-18 09:21:57,582 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 09:21:57,582 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 09:21:57,582 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2018-11-18 09:21:57,582 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:21:57,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 09:21:57,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 09:21:57,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 09:21:57,583 INFO L87 Difference]: Start difference. First operand 2397 states and 3245 transitions. Second operand 9 states. [2018-11-18 09:22:12,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:22:12,993 INFO L93 Difference]: Finished difference Result 5146 states and 7188 transitions. [2018-11-18 09:22:12,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-18 09:22:12,993 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 495 [2018-11-18 09:22:12,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:22:12,998 INFO L225 Difference]: With dead ends: 5146 [2018-11-18 09:22:12,999 INFO L226 Difference]: Without dead ends: 3123 [2018-11-18 09:22:13,006 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 501 GetRequests, 487 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2018-11-18 09:22:13,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3123 states. [2018-11-18 09:22:13,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3123 to 3107. [2018-11-18 09:22:13,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3107 states. [2018-11-18 09:22:13,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3107 states to 3107 states and 4110 transitions. [2018-11-18 09:22:13,057 INFO L78 Accepts]: Start accepts. Automaton has 3107 states and 4110 transitions. Word has length 495 [2018-11-18 09:22:13,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:22:13,058 INFO L480 AbstractCegarLoop]: Abstraction has 3107 states and 4110 transitions. [2018-11-18 09:22:13,058 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 09:22:13,058 INFO L276 IsEmpty]: Start isEmpty. Operand 3107 states and 4110 transitions. [2018-11-18 09:22:13,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 563 [2018-11-18 09:22:13,068 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:22:13,069 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2018-11-18 09:22:13,069 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:22:13,069 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:22:13,069 INFO L82 PathProgramCache]: Analyzing trace with hash -124366288, now seen corresponding path program 1 times [2018-11-18 09:22:13,069 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:22:13,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:22:13,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:22:13,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:22:13,070 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:22:13,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:22:13,869 INFO L134 CoverageAnalysis]: Checked inductivity of 832 backedges. 402 proven. 321 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-11-18 09:22:13,869 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:22:13,869 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:22:13,869 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 563 with the following transitions: [2018-11-18 09:22:13,870 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [293], [295], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [662], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 09:22:13,873 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:22:13,873 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:22:17,945 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:22:17,945 INFO L272 AbstractInterpreter]: Visited 191 different actions 756 times. Merged at 9 different actions 28 times. Never widened. Performed 8224 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8224 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 7 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 09:22:17,946 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:22:17,946 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:22:17,946 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:22:17,947 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fc1614de-506a-4a3f-9ea2-4647f01819af/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 09:22:17,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:22:17,953 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:22:18,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:22:18,049 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:22:18,300 INFO L134 CoverageAnalysis]: Checked inductivity of 832 backedges. 680 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2018-11-18 09:22:18,300 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:22:18,668 INFO L134 CoverageAnalysis]: Checked inductivity of 832 backedges. 400 proven. 111 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2018-11-18 09:22:18,683 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:22:18,683 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 6, 6] total 20 [2018-11-18 09:22:18,683 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:22:18,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 09:22:18,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 09:22:18,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2018-11-18 09:22:18,684 INFO L87 Difference]: Start difference. First operand 3107 states and 4110 transitions. Second operand 17 states. [2018-11-18 09:22:23,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:22:23,254 INFO L93 Difference]: Finished difference Result 8103 states and 11701 transitions. [2018-11-18 09:22:23,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-11-18 09:22:23,255 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 562 [2018-11-18 09:22:23,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:22:23,271 INFO L225 Difference]: With dead ends: 8103 [2018-11-18 09:22:23,271 INFO L226 Difference]: Without dead ends: 5370 [2018-11-18 09:22:23,285 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1222 GetRequests, 1157 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1202 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=916, Invalid=3506, Unknown=0, NotChecked=0, Total=4422 [2018-11-18 09:22:23,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5370 states. [2018-11-18 09:22:23,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5370 to 5245. [2018-11-18 09:22:23,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5245 states. [2018-11-18 09:22:23,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5245 states to 5245 states and 6756 transitions. [2018-11-18 09:22:23,378 INFO L78 Accepts]: Start accepts. Automaton has 5245 states and 6756 transitions. Word has length 562 [2018-11-18 09:22:23,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:22:23,379 INFO L480 AbstractCegarLoop]: Abstraction has 5245 states and 6756 transitions. [2018-11-18 09:22:23,379 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 09:22:23,379 INFO L276 IsEmpty]: Start isEmpty. Operand 5245 states and 6756 transitions. [2018-11-18 09:22:23,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 581 [2018-11-18 09:22:23,389 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:22:23,389 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:22:23,390 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:22:23,390 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:22:23,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1869135889, now seen corresponding path program 1 times [2018-11-18 09:22:23,390 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:22:23,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:22:23,391 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:22:23,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:22:23,391 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:22:23,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:22:24,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1214 backedges. 541 proven. 481 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2018-11-18 09:22:24,069 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:22:24,069 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:22:24,069 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 581 with the following transitions: [2018-11-18 09:22:24,069 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [293], [295], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [662], [663], [666], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 09:22:24,071 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:22:24,071 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:22:34,437 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:22:34,437 INFO L272 AbstractInterpreter]: Visited 125 different actions 498 times. Merged at 9 different actions 32 times. Never widened. Performed 4705 root evaluator evaluations with a maximum evaluation depth of 22. Performed 4705 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 10 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-18 09:22:34,440 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:22:34,440 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:22:34,440 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:22:34,440 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fc1614de-506a-4a3f-9ea2-4647f01819af/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 09:22:34,446 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:22:34,446 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:22:34,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:22:34,523 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:22:34,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1214 backedges. 895 proven. 2 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2018-11-18 09:22:34,749 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:22:35,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1214 backedges. 535 proven. 111 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2018-11-18 09:22:35,082 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:22:35,082 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5] total 14 [2018-11-18 09:22:35,083 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:22:35,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-18 09:22:35,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-18 09:22:35,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2018-11-18 09:22:35,083 INFO L87 Difference]: Start difference. First operand 5245 states and 6756 transitions. Second operand 13 states. [2018-11-18 09:22:36,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:22:36,779 INFO L93 Difference]: Finished difference Result 10638 states and 14307 transitions. [2018-11-18 09:22:36,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-18 09:22:36,779 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 580 [2018-11-18 09:22:36,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:22:36,791 INFO L225 Difference]: With dead ends: 10638 [2018-11-18 09:22:36,791 INFO L226 Difference]: Without dead ends: 5568 [2018-11-18 09:22:36,801 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1189 GetRequests, 1165 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=144, Invalid=362, Unknown=0, NotChecked=0, Total=506 [2018-11-18 09:22:36,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5568 states. [2018-11-18 09:22:36,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5568 to 5437. [2018-11-18 09:22:36,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5437 states. [2018-11-18 09:22:36,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 6775 transitions. [2018-11-18 09:22:36,859 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 6775 transitions. Word has length 580 [2018-11-18 09:22:36,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:22:36,859 INFO L480 AbstractCegarLoop]: Abstraction has 5437 states and 6775 transitions. [2018-11-18 09:22:36,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-18 09:22:36,860 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 6775 transitions. [2018-11-18 09:22:36,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 629 [2018-11-18 09:22:36,866 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:22:36,866 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 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] [2018-11-18 09:22:36,867 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:22:36,867 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:22:36,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1885549233, now seen corresponding path program 1 times [2018-11-18 09:22:36,867 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:22:36,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:22:36,868 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:22:36,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:22:36,868 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:22:36,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:22:37,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1320 backedges. 567 proven. 536 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2018-11-18 09:22:37,482 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:22:37,482 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:22:37,482 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 629 with the following transitions: [2018-11-18 09:22:37,482 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [293], [295], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [662], [663], [666], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [746], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 09:22:37,484 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:22:37,484 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:22:44,622 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:22:44,622 INFO L272 AbstractInterpreter]: Visited 145 different actions 577 times. Merged at 9 different actions 33 times. Widened at 1 different actions 1 times. Performed 5969 root evaluator evaluations with a maximum evaluation depth of 22. Performed 5969 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 8 fixpoints after 5 different actions. Largest state had 24 variables. [2018-11-18 09:22:44,628 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:22:44,628 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:22:44,628 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:22:44,628 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fc1614de-506a-4a3f-9ea2-4647f01819af/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 09:22:44,634 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:22:44,634 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:22:44,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:22:44,708 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:22:44,943 INFO L134 CoverageAnalysis]: Checked inductivity of 1320 backedges. 950 proven. 2 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2018-11-18 09:22:44,943 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:22:45,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1320 backedges. 563 proven. 111 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2018-11-18 09:22:45,456 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:22:45,456 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-11-18 09:22:45,456 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:22:45,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 09:22:45,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 09:22:45,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2018-11-18 09:22:45,457 INFO L87 Difference]: Start difference. First operand 5437 states and 6775 transitions. Second operand 17 states. [2018-11-18 09:22:48,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:22:48,552 INFO L93 Difference]: Finished difference Result 11441 states and 15134 transitions. [2018-11-18 09:22:48,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-11-18 09:22:48,553 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 628 [2018-11-18 09:22:48,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:22:48,572 INFO L225 Difference]: With dead ends: 11441 [2018-11-18 09:22:48,572 INFO L226 Difference]: Without dead ends: 5756 [2018-11-18 09:22:48,591 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1334 GetRequests, 1273 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1090 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=793, Invalid=2989, Unknown=0, NotChecked=0, Total=3782 [2018-11-18 09:22:48,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5756 states. [2018-11-18 09:22:48,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5756 to 5590. [2018-11-18 09:22:48,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5590 states. [2018-11-18 09:22:48,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5590 states to 5590 states and 6551 transitions. [2018-11-18 09:22:48,677 INFO L78 Accepts]: Start accepts. Automaton has 5590 states and 6551 transitions. Word has length 628 [2018-11-18 09:22:48,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:22:48,678 INFO L480 AbstractCegarLoop]: Abstraction has 5590 states and 6551 transitions. [2018-11-18 09:22:48,678 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 09:22:48,678 INFO L276 IsEmpty]: Start isEmpty. Operand 5590 states and 6551 transitions. [2018-11-18 09:22:48,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 674 [2018-11-18 09:22:48,687 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:22:48,687 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2018-11-18 09:22:48,687 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:22:48,687 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:22:48,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1399137260, now seen corresponding path program 2 times [2018-11-18 09:22:48,688 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:22:48,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:22:48,688 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:22:48,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:22:48,688 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:22:48,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:22:49,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1317 backedges. 561 proven. 111 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2018-11-18 09:22:49,059 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:22:49,059 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:22:49,059 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-18 09:22:49,059 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-18 09:22:49,059 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:22:49,059 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fc1614de-506a-4a3f-9ea2-4647f01819af/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 [2018-11-18 09:22:49,065 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 09:22:49,065 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-18 09:22:49,102 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-11-18 09:22:49,102 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 09:22:49,108 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:22:49,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1317 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 1095 trivial. 0 not checked. [2018-11-18 09:22:49,450 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:22:49,626 INFO L134 CoverageAnalysis]: Checked inductivity of 1317 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 1095 trivial. 0 not checked. [2018-11-18 09:22:49,641 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-18 09:22:49,641 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 8 [2018-11-18 09:22:49,641 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:22:49,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:22:49,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:22:49,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-11-18 09:22:49,642 INFO L87 Difference]: Start difference. First operand 5590 states and 6551 transitions. Second operand 3 states. [2018-11-18 09:22:50,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:22:50,160 INFO L93 Difference]: Finished difference Result 13808 states and 16358 transitions. [2018-11-18 09:22:50,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:22:50,161 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 673 [2018-11-18 09:22:50,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:22:50,176 INFO L225 Difference]: With dead ends: 13808 [2018-11-18 09:22:50,176 INFO L226 Difference]: Without dead ends: 8592 [2018-11-18 09:22:50,184 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1351 GetRequests, 1345 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-11-18 09:22:50,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8592 states. [2018-11-18 09:22:50,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8592 to 8577. [2018-11-18 09:22:50,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8577 states. [2018-11-18 09:22:50,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8577 states to 8577 states and 9768 transitions. [2018-11-18 09:22:50,256 INFO L78 Accepts]: Start accepts. Automaton has 8577 states and 9768 transitions. Word has length 673 [2018-11-18 09:22:50,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:22:50,256 INFO L480 AbstractCegarLoop]: Abstraction has 8577 states and 9768 transitions. [2018-11-18 09:22:50,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:22:50,257 INFO L276 IsEmpty]: Start isEmpty. Operand 8577 states and 9768 transitions. [2018-11-18 09:22:50,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 738 [2018-11-18 09:22:50,264 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:22:50,265 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:22:50,265 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:22:50,265 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:22:50,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1362495636, now seen corresponding path program 1 times [2018-11-18 09:22:50,265 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:22:50,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:22:50,266 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 09:22:50,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:22:50,266 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:22:50,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:22:50,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1381 backedges. 561 proven. 175 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2018-11-18 09:22:50,569 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:22:50,569 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:22:50,569 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 738 with the following transitions: [2018-11-18 09:22:50,569 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [293], [295], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [918], [919], [923], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 09:22:50,571 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:22:50,571 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:22:54,480 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:22:54,480 INFO L272 AbstractInterpreter]: Visited 191 different actions 760 times. Merged at 9 different actions 32 times. Never widened. Performed 8329 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8329 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 7 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-18 09:22:54,481 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:22:54,481 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:22:54,481 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:22:54,481 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fc1614de-506a-4a3f-9ea2-4647f01819af/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 [2018-11-18 09:22:54,488 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:22:54,488 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:22:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:22:54,565 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:22:54,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1381 backedges. 1011 proven. 2 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2018-11-18 09:22:54,728 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:22:54,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1381 backedges. 561 proven. 175 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2018-11-18 09:22:55,001 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:22:55,001 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-11-18 09:22:55,001 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:22:55,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 09:22:55,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 09:22:55,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-18 09:22:55,002 INFO L87 Difference]: Start difference. First operand 8577 states and 9768 transitions. Second operand 7 states. [2018-11-18 09:22:56,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:22:56,071 INFO L93 Difference]: Finished difference Result 23681 states and 30173 transitions. [2018-11-18 09:22:56,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 09:22:56,071 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 737 [2018-11-18 09:22:56,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:22:56,126 INFO L225 Difference]: With dead ends: 23681 [2018-11-18 09:22:56,127 INFO L226 Difference]: Without dead ends: 15478 [2018-11-18 09:22:56,190 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1488 GetRequests, 1475 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2018-11-18 09:22:56,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15478 states. [2018-11-18 09:22:56,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15478 to 15043. [2018-11-18 09:22:56,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15043 states. [2018-11-18 09:22:56,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15043 states to 15043 states and 17208 transitions. [2018-11-18 09:22:56,414 INFO L78 Accepts]: Start accepts. Automaton has 15043 states and 17208 transitions. Word has length 737 [2018-11-18 09:22:56,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:22:56,415 INFO L480 AbstractCegarLoop]: Abstraction has 15043 states and 17208 transitions. [2018-11-18 09:22:56,415 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 09:22:56,415 INFO L276 IsEmpty]: Start isEmpty. Operand 15043 states and 17208 transitions. [2018-11-18 09:22:56,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 745 [2018-11-18 09:22:56,427 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:22:56,427 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 09:22:56,427 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:22:56,428 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:22:56,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1847732331, now seen corresponding path program 1 times [2018-11-18 09:22:56,428 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:22:56,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:22:56,428 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:22:56,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:22:56,429 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:22:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:22:56,839 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 568 proven. 175 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2018-11-18 09:22:56,839 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:22:56,839 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:22:56,840 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 745 with the following transitions: [2018-11-18 09:22:56,840 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [293], [295], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [918], [919], [923], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 09:22:56,842 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:22:56,842 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:23:00,901 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:23:00,901 INFO L272 AbstractInterpreter]: Visited 192 different actions 766 times. Merged at 10 different actions 34 times. Never widened. Performed 8439 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8439 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 9 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 09:23:00,906 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:23:00,906 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:23:00,906 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:23:00,906 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fc1614de-506a-4a3f-9ea2-4647f01819af/bin-2019/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 09:23:00,912 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:23:00,913 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:23:00,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:23:00,992 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:23:01,142 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 1025 proven. 2 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2018-11-18 09:23:01,142 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:23:01,385 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 568 proven. 175 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2018-11-18 09:23:01,400 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:23:01,401 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-11-18 09:23:01,401 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:23:01,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 09:23:01,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 09:23:01,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-18 09:23:01,402 INFO L87 Difference]: Start difference. First operand 15043 states and 17208 transitions. Second operand 7 states. [2018-11-18 09:23:02,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:23:02,598 INFO L93 Difference]: Finished difference Result 35519 states and 46343 transitions. [2018-11-18 09:23:02,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 09:23:02,598 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 744 [2018-11-18 09:23:02,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:23:02,692 INFO L225 Difference]: With dead ends: 35519 [2018-11-18 09:23:02,693 INFO L226 Difference]: Without dead ends: 20850 [2018-11-18 09:23:02,760 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1504 GetRequests, 1491 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2018-11-18 09:23:02,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20850 states. [2018-11-18 09:23:03,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20850 to 20254. [2018-11-18 09:23:03,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20254 states. [2018-11-18 09:23:03,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20254 states to 20254 states and 23653 transitions. [2018-11-18 09:23:03,056 INFO L78 Accepts]: Start accepts. Automaton has 20254 states and 23653 transitions. Word has length 744 [2018-11-18 09:23:03,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:23:03,057 INFO L480 AbstractCegarLoop]: Abstraction has 20254 states and 23653 transitions. [2018-11-18 09:23:03,057 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 09:23:03,057 INFO L276 IsEmpty]: Start isEmpty. Operand 20254 states and 23653 transitions. [2018-11-18 09:23:03,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 790 [2018-11-18 09:23:03,069 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:23:03,069 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:23:03,069 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:23:03,069 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:23:03,070 INFO L82 PathProgramCache]: Analyzing trace with hash -2142440772, now seen corresponding path program 1 times [2018-11-18 09:23:03,070 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:23:03,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:23:03,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:23:03,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:23:03,070 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:23:03,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:23:03,491 INFO L134 CoverageAnalysis]: Checked inductivity of 1485 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 1263 trivial. 0 not checked. [2018-11-18 09:23:03,491 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:23:03,491 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 09:23:03,491 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:23:03,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 09:23:03,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 09:23:03,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 09:23:03,492 INFO L87 Difference]: Start difference. First operand 20254 states and 23653 transitions. Second operand 4 states. [2018-11-18 09:23:04,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:23:04,184 INFO L93 Difference]: Finished difference Result 40721 states and 48123 transitions. [2018-11-18 09:23:04,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 09:23:04,184 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 789 [2018-11-18 09:23:04,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:23:04,185 INFO L225 Difference]: With dead ends: 40721 [2018-11-18 09:23:04,185 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 09:23:04,264 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 09:23:04,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 09:23:04,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 09:23:04,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 09:23:04,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 09:23:04,265 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 789 [2018-11-18 09:23:04,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:23:04,265 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 09:23:04,265 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 09:23:04,266 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 09:23:04,266 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 09:23:04,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 09:23:04,360 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:23:04,364 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:23:04,406 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:23:04,466 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:23:04,509 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:23:04,510 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:23:04,511 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:23:04,581 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:23:04,586 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:23:04,639 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:23:04,640 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:23:04,641 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:23:04,678 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:23:04,678 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:23:04,679 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:23:05,059 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:23:05,088 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:23:05,181 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:23:05,319 WARN L180 SmtUtils]: Spent 927.00 ms on a formula simplification. DAG size of input: 667 DAG size of output: 582 [2018-11-18 09:23:05,374 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:23:05,429 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:23:05,548 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:23:05,582 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:23:05,587 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:23:05,627 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:23:06,019 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:23:06,130 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:23:06,254 WARN L180 SmtUtils]: Spent 933.00 ms on a formula simplification. DAG size of input: 685 DAG size of output: 621 [2018-11-18 09:23:06,676 WARN L180 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 32 [2018-11-18 09:23:08,949 WARN L180 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 587 DAG size of output: 39 [2018-11-18 09:23:11,628 WARN L180 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 627 DAG size of output: 39 [2018-11-18 09:23:11,630 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 09:23:11,630 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= |old(~a15~0)| ~a15~0)) [2018-11-18 09:23:11,630 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 09:23:11,630 INFO L425 ceAbstractionStarter]: For program point L432(lines 432 870) no Hoare annotation was computed. [2018-11-18 09:23:11,630 INFO L425 ceAbstractionStarter]: For program point L366(lines 366 870) no Hoare annotation was computed. [2018-11-18 09:23:11,630 INFO L425 ceAbstractionStarter]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,630 INFO L425 ceAbstractionStarter]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,630 INFO L425 ceAbstractionStarter]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,631 INFO L425 ceAbstractionStarter]: For program point L235(lines 235 870) no Hoare annotation was computed. [2018-11-18 09:23:11,631 INFO L425 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-11-18 09:23:11,631 INFO L425 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-11-18 09:23:11,631 INFO L425 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-11-18 09:23:11,631 INFO L425 ceAbstractionStarter]: For program point L764(lines 764 870) no Hoare annotation was computed. [2018-11-18 09:23:11,631 INFO L425 ceAbstractionStarter]: For program point L632(lines 632 870) no Hoare annotation was computed. [2018-11-18 09:23:11,631 INFO L425 ceAbstractionStarter]: For program point L500(lines 500 870) no Hoare annotation was computed. [2018-11-18 09:23:11,631 INFO L425 ceAbstractionStarter]: For program point L831(lines 831 870) no Hoare annotation was computed. [2018-11-18 09:23:11,631 INFO L425 ceAbstractionStarter]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,631 INFO L425 ceAbstractionStarter]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,631 INFO L425 ceAbstractionStarter]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,631 INFO L425 ceAbstractionStarter]: For program point L700(lines 700 870) no Hoare annotation was computed. [2018-11-18 09:23:11,631 INFO L425 ceAbstractionStarter]: For program point L568(lines 568 870) no Hoare annotation was computed. [2018-11-18 09:23:11,631 INFO L425 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-11-18 09:23:11,631 INFO L425 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-11-18 09:23:11,631 INFO L425 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-11-18 09:23:11,631 INFO L425 ceAbstractionStarter]: For program point L305(lines 305 870) no Hoare annotation was computed. [2018-11-18 09:23:11,631 INFO L425 ceAbstractionStarter]: For program point L438(lines 438 870) no Hoare annotation was computed. [2018-11-18 09:23:11,631 INFO L425 ceAbstractionStarter]: For program point L372(lines 372 870) no Hoare annotation was computed. [2018-11-18 09:23:11,631 INFO L425 ceAbstractionStarter]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,631 INFO L425 ceAbstractionStarter]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,631 INFO L425 ceAbstractionStarter]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,631 INFO L425 ceAbstractionStarter]: For program point L241(lines 241 870) no Hoare annotation was computed. [2018-11-18 09:23:11,631 INFO L425 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-11-18 09:23:11,631 INFO L425 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-11-18 09:23:11,632 INFO L425 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-18 09:23:11,632 INFO L425 ceAbstractionStarter]: For program point L638(lines 638 870) no Hoare annotation was computed. [2018-11-18 09:23:11,632 INFO L425 ceAbstractionStarter]: For program point L506(lines 506 870) no Hoare annotation was computed. [2018-11-18 09:23:11,632 INFO L425 ceAbstractionStarter]: For program point L837(lines 837 870) no Hoare annotation was computed. [2018-11-18 09:23:11,632 INFO L425 ceAbstractionStarter]: For program point L771(lines 771 870) no Hoare annotation was computed. [2018-11-18 09:23:11,632 INFO L425 ceAbstractionStarter]: For program point L573(lines 573 870) no Hoare annotation was computed. [2018-11-18 09:23:11,632 INFO L425 ceAbstractionStarter]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,632 INFO L425 ceAbstractionStarter]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,632 INFO L425 ceAbstractionStarter]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,632 INFO L425 ceAbstractionStarter]: For program point L706(lines 706 870) no Hoare annotation was computed. [2018-11-18 09:23:11,632 INFO L425 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-11-18 09:23:11,632 INFO L425 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-11-18 09:23:11,632 INFO L425 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-11-18 09:23:11,632 INFO L425 ceAbstractionStarter]: For program point L311(lines 311 870) no Hoare annotation was computed. [2018-11-18 09:23:11,632 INFO L425 ceAbstractionStarter]: For program point L444(lines 444 870) no Hoare annotation was computed. [2018-11-18 09:23:11,632 INFO L425 ceAbstractionStarter]: For program point L378(lines 378 870) no Hoare annotation was computed. [2018-11-18 09:23:11,632 INFO L425 ceAbstractionStarter]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,632 INFO L425 ceAbstractionStarter]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,632 INFO L425 ceAbstractionStarter]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,633 INFO L425 ceAbstractionStarter]: For program point L247(lines 247 870) no Hoare annotation was computed. [2018-11-18 09:23:11,633 INFO L425 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-11-18 09:23:11,633 INFO L425 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-11-18 09:23:11,633 INFO L425 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-18 09:23:11,633 INFO L425 ceAbstractionStarter]: For program point L842(lines 842 870) no Hoare annotation was computed. [2018-11-18 09:23:11,633 INFO L425 ceAbstractionStarter]: For program point L644(lines 644 870) no Hoare annotation was computed. [2018-11-18 09:23:11,633 INFO L425 ceAbstractionStarter]: For program point L512(lines 512 870) no Hoare annotation was computed. [2018-11-18 09:23:11,633 INFO L425 ceAbstractionStarter]: For program point L777(lines 777 870) no Hoare annotation was computed. [2018-11-18 09:23:11,633 INFO L425 ceAbstractionStarter]: For program point L579(lines 579 870) no Hoare annotation was computed. [2018-11-18 09:23:11,633 INFO L425 ceAbstractionStarter]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,633 INFO L425 ceAbstractionStarter]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,633 INFO L425 ceAbstractionStarter]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,633 INFO L425 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,633 INFO L425 ceAbstractionStarter]: For program point L712(lines 712 870) no Hoare annotation was computed. [2018-11-18 09:23:11,633 INFO L425 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-11-18 09:23:11,634 INFO L425 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-11-18 09:23:11,634 INFO L425 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-18 09:23:11,634 INFO L425 ceAbstractionStarter]: For program point L449(lines 449 870) no Hoare annotation was computed. [2018-11-18 09:23:11,634 INFO L425 ceAbstractionStarter]: For program point L317(lines 317 870) no Hoare annotation was computed. [2018-11-18 09:23:11,634 INFO L425 ceAbstractionStarter]: For program point L384(lines 384 870) no Hoare annotation was computed. [2018-11-18 09:23:11,634 INFO L425 ceAbstractionStarter]: For program point L252(lines 252 870) no Hoare annotation was computed. [2018-11-18 09:23:11,634 INFO L425 ceAbstractionStarter]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,634 INFO L425 ceAbstractionStarter]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,634 INFO L425 ceAbstractionStarter]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,634 INFO L425 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-11-18 09:23:11,634 INFO L425 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-11-18 09:23:11,634 INFO L425 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-11-18 09:23:11,634 INFO L425 ceAbstractionStarter]: For program point L848(lines 848 870) no Hoare annotation was computed. [2018-11-18 09:23:11,634 INFO L425 ceAbstractionStarter]: For program point L650(lines 650 870) no Hoare annotation was computed. [2018-11-18 09:23:11,634 INFO L425 ceAbstractionStarter]: For program point L518(lines 518 870) no Hoare annotation was computed. [2018-11-18 09:23:11,634 INFO L425 ceAbstractionStarter]: For program point L783(lines 783 870) no Hoare annotation was computed. [2018-11-18 09:23:11,635 INFO L425 ceAbstractionStarter]: For program point L585(lines 585 870) no Hoare annotation was computed. [2018-11-18 09:23:11,635 INFO L425 ceAbstractionStarter]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,635 INFO L425 ceAbstractionStarter]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,635 INFO L425 ceAbstractionStarter]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,635 INFO L425 ceAbstractionStarter]: For program point L718(lines 718 870) no Hoare annotation was computed. [2018-11-18 09:23:11,635 INFO L425 ceAbstractionStarter]: For program point L454(lines 454 870) no Hoare annotation was computed. [2018-11-18 09:23:11,635 INFO L425 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-11-18 09:23:11,635 INFO L425 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-11-18 09:23:11,635 INFO L425 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-11-18 09:23:11,635 INFO L425 ceAbstractionStarter]: For program point L323(lines 323 870) no Hoare annotation was computed. [2018-11-18 09:23:11,635 INFO L421 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse1 (not (= 1 |old(~a24~0)|))) (.cse2 (= 7 |old(~a15~0)|)) (.cse0 (and (= ~a12~0 |old(~a12~0)|) (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= |old(~a15~0)| ~a15~0))) (.cse3 (= 9 |old(~a15~0)|))) (and (or .cse0 (= 9 |old(~a21~0)|) .cse1) (or .cse0 .cse2 .cse1 .cse3) (or (< |old(~a12~0)| 12) .cse1 .cse0) (or (not (= 6 |old(~a21~0)|)) .cse2 .cse0 .cse3))) [2018-11-18 09:23:11,635 INFO L425 ceAbstractionStarter]: For program point L390(lines 390 870) no Hoare annotation was computed. [2018-11-18 09:23:11,635 INFO L425 ceAbstractionStarter]: For program point L258(lines 258 870) no Hoare annotation was computed. [2018-11-18 09:23:11,635 INFO L425 ceAbstractionStarter]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,635 INFO L425 ceAbstractionStarter]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,636 INFO L425 ceAbstractionStarter]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,636 INFO L425 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-11-18 09:23:11,636 INFO L425 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-11-18 09:23:11,636 INFO L425 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-11-18 09:23:11,636 INFO L425 ceAbstractionStarter]: For program point L854(lines 854 870) no Hoare annotation was computed. [2018-11-18 09:23:11,636 INFO L425 ceAbstractionStarter]: For program point L656(lines 656 870) no Hoare annotation was computed. [2018-11-18 09:23:11,636 INFO L425 ceAbstractionStarter]: For program point L524(lines 524 870) no Hoare annotation was computed. [2018-11-18 09:23:11,636 INFO L425 ceAbstractionStarter]: For program point L789(lines 789 870) no Hoare annotation was computed. [2018-11-18 09:23:11,636 INFO L425 ceAbstractionStarter]: For program point L591(lines 591 870) no Hoare annotation was computed. [2018-11-18 09:23:11,636 INFO L425 ceAbstractionStarter]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,636 INFO L425 ceAbstractionStarter]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,636 INFO L425 ceAbstractionStarter]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,636 INFO L425 ceAbstractionStarter]: For program point L724(lines 724 870) no Hoare annotation was computed. [2018-11-18 09:23:11,636 INFO L425 ceAbstractionStarter]: For program point L460(lines 460 870) no Hoare annotation was computed. [2018-11-18 09:23:11,636 INFO L425 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-11-18 09:23:11,636 INFO L425 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-11-18 09:23:11,636 INFO L425 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-11-18 09:23:11,636 INFO L425 ceAbstractionStarter]: For program point L329(lines 329 870) no Hoare annotation was computed. [2018-11-18 09:23:11,636 INFO L425 ceAbstractionStarter]: For program point L396(lines 396 870) no Hoare annotation was computed. [2018-11-18 09:23:11,637 INFO L425 ceAbstractionStarter]: For program point L264(lines 264 870) no Hoare annotation was computed. [2018-11-18 09:23:11,637 INFO L425 ceAbstractionStarter]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,637 INFO L425 ceAbstractionStarter]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,637 INFO L425 ceAbstractionStarter]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,637 INFO L425 ceAbstractionStarter]: For program point L859(lines 859 870) no Hoare annotation was computed. [2018-11-18 09:23:11,637 INFO L425 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 130) no Hoare annotation was computed. [2018-11-18 09:23:11,637 INFO L425 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-11-18 09:23:11,637 INFO L425 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-11-18 09:23:11,637 INFO L425 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-11-18 09:23:11,637 INFO L425 ceAbstractionStarter]: For program point L662(lines 662 870) no Hoare annotation was computed. [2018-11-18 09:23:11,637 INFO L425 ceAbstractionStarter]: For program point L530(lines 530 870) no Hoare annotation was computed. [2018-11-18 09:23:11,637 INFO L425 ceAbstractionStarter]: For program point L795(lines 795 870) no Hoare annotation was computed. [2018-11-18 09:23:11,637 INFO L425 ceAbstractionStarter]: For program point L597(lines 597 870) no Hoare annotation was computed. [2018-11-18 09:23:11,637 INFO L425 ceAbstractionStarter]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,637 INFO L425 ceAbstractionStarter]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,637 INFO L425 ceAbstractionStarter]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,637 INFO L425 ceAbstractionStarter]: For program point L730(lines 730 870) no Hoare annotation was computed. [2018-11-18 09:23:11,637 INFO L425 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-11-18 09:23:11,637 INFO L425 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-11-18 09:23:11,637 INFO L425 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-11-18 09:23:11,637 INFO L425 ceAbstractionStarter]: For program point L467(lines 467 870) no Hoare annotation was computed. [2018-11-18 09:23:11,637 INFO L425 ceAbstractionStarter]: For program point L335(lines 335 870) no Hoare annotation was computed. [2018-11-18 09:23:11,637 INFO L425 ceAbstractionStarter]: For program point L269(lines 269 870) no Hoare annotation was computed. [2018-11-18 09:23:11,637 INFO L425 ceAbstractionStarter]: For program point L402(lines 402 870) no Hoare annotation was computed. [2018-11-18 09:23:11,637 INFO L425 ceAbstractionStarter]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,638 INFO L425 ceAbstractionStarter]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,638 INFO L425 ceAbstractionStarter]: For program point L865(lines 865 870) no Hoare annotation was computed. [2018-11-18 09:23:11,638 INFO L425 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-11-18 09:23:11,638 INFO L425 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-11-18 09:23:11,638 INFO L425 ceAbstractionStarter]: For program point L668(lines 668 870) no Hoare annotation was computed. [2018-11-18 09:23:11,638 INFO L425 ceAbstractionStarter]: For program point L536(lines 536 870) no Hoare annotation was computed. [2018-11-18 09:23:11,638 INFO L425 ceAbstractionStarter]: For program point L801(lines 801 870) no Hoare annotation was computed. [2018-11-18 09:23:11,638 INFO L425 ceAbstractionStarter]: For program point L735(lines 735 870) no Hoare annotation was computed. [2018-11-18 09:23:11,638 INFO L425 ceAbstractionStarter]: For program point L603(lines 603 870) no Hoare annotation was computed. [2018-11-18 09:23:11,638 INFO L425 ceAbstractionStarter]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,638 INFO L425 ceAbstractionStarter]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,638 INFO L425 ceAbstractionStarter]: For program point L472(lines 472 870) no Hoare annotation was computed. [2018-11-18 09:23:11,638 INFO L425 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-11-18 09:23:11,638 INFO L425 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-11-18 09:23:11,638 INFO L425 ceAbstractionStarter]: For program point L341(lines 341 870) no Hoare annotation was computed. [2018-11-18 09:23:11,638 INFO L425 ceAbstractionStarter]: For program point L275(lines 275 870) no Hoare annotation was computed. [2018-11-18 09:23:11,638 INFO L425 ceAbstractionStarter]: For program point L408(lines 408 870) no Hoare annotation was computed. [2018-11-18 09:23:11,638 INFO L425 ceAbstractionStarter]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,638 INFO L425 ceAbstractionStarter]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,638 INFO L425 ceAbstractionStarter]: For program point L541(lines 541 870) no Hoare annotation was computed. [2018-11-18 09:23:11,638 INFO L425 ceAbstractionStarter]: For program point L211(lines 211 870) no Hoare annotation was computed. [2018-11-18 09:23:11,638 INFO L425 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-11-18 09:23:11,638 INFO L425 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-18 09:23:11,638 INFO L425 ceAbstractionStarter]: For program point L674(lines 674 870) no Hoare annotation was computed. [2018-11-18 09:23:11,638 INFO L425 ceAbstractionStarter]: For program point L807(lines 807 870) no Hoare annotation was computed. [2018-11-18 09:23:11,638 INFO L425 ceAbstractionStarter]: For program point L741(lines 741 870) no Hoare annotation was computed. [2018-11-18 09:23:11,638 INFO L425 ceAbstractionStarter]: For program point L609(lines 609 870) no Hoare annotation was computed. [2018-11-18 09:23:11,639 INFO L425 ceAbstractionStarter]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,639 INFO L425 ceAbstractionStarter]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,639 INFO L425 ceAbstractionStarter]: For program point L478(lines 478 870) no Hoare annotation was computed. [2018-11-18 09:23:11,639 INFO L425 ceAbstractionStarter]: For program point L280(lines 280 870) no Hoare annotation was computed. [2018-11-18 09:23:11,639 INFO L425 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-11-18 09:23:11,639 INFO L425 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-11-18 09:23:11,639 INFO L425 ceAbstractionStarter]: For program point L677(lines 677 870) no Hoare annotation was computed. [2018-11-18 09:23:11,639 INFO L425 ceAbstractionStarter]: For program point L347(lines 347 870) no Hoare annotation was computed. [2018-11-18 09:23:11,639 INFO L425 ceAbstractionStarter]: For program point L414(lines 414 870) no Hoare annotation was computed. [2018-11-18 09:23:11,639 INFO L425 ceAbstractionStarter]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,639 INFO L425 ceAbstractionStarter]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,639 INFO L425 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,639 INFO L425 ceAbstractionStarter]: For program point L547(lines 547 870) no Hoare annotation was computed. [2018-11-18 09:23:11,639 INFO L425 ceAbstractionStarter]: For program point L217(lines 217 870) no Hoare annotation was computed. [2018-11-18 09:23:11,639 INFO L425 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-11-18 09:23:11,639 INFO L425 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-11-18 09:23:11,639 INFO L425 ceAbstractionStarter]: For program point L747(lines 747 870) no Hoare annotation was computed. [2018-11-18 09:23:11,639 INFO L425 ceAbstractionStarter]: For program point L615(lines 615 870) no Hoare annotation was computed. [2018-11-18 09:23:11,639 INFO L425 ceAbstractionStarter]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,639 INFO L425 ceAbstractionStarter]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,639 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-11-18 09:23:11,639 INFO L425 ceAbstractionStarter]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,639 INFO L425 ceAbstractionStarter]: For program point L814(lines 814 870) no Hoare annotation was computed. [2018-11-18 09:23:11,639 INFO L425 ceAbstractionStarter]: For program point L484(lines 484 870) no Hoare annotation was computed. [2018-11-18 09:23:11,639 INFO L425 ceAbstractionStarter]: For program point L286(lines 286 870) no Hoare annotation was computed. [2018-11-18 09:23:11,639 INFO L425 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-11-18 09:23:11,639 INFO L425 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-11-18 09:23:11,640 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-18 09:23:11,640 INFO L425 ceAbstractionStarter]: For program point L683(lines 683 870) no Hoare annotation was computed. [2018-11-18 09:23:11,640 INFO L425 ceAbstractionStarter]: For program point L353(lines 353 870) no Hoare annotation was computed. [2018-11-18 09:23:11,640 INFO L425 ceAbstractionStarter]: For program point L552(lines 552 870) no Hoare annotation was computed. [2018-11-18 09:23:11,640 INFO L425 ceAbstractionStarter]: For program point L420(lines 420 870) no Hoare annotation was computed. [2018-11-18 09:23:11,640 INFO L425 ceAbstractionStarter]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,640 INFO L425 ceAbstractionStarter]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,640 INFO L425 ceAbstractionStarter]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,640 INFO L425 ceAbstractionStarter]: For program point L223(lines 223 870) no Hoare annotation was computed. [2018-11-18 09:23:11,640 INFO L425 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-11-18 09:23:11,640 INFO L425 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-11-18 09:23:11,640 INFO L425 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-18 09:23:11,640 INFO L425 ceAbstractionStarter]: For program point L752(lines 752 870) no Hoare annotation was computed. [2018-11-18 09:23:11,640 INFO L425 ceAbstractionStarter]: For program point L819(lines 819 870) no Hoare annotation was computed. [2018-11-18 09:23:11,640 INFO L425 ceAbstractionStarter]: For program point L621(lines 621 870) no Hoare annotation was computed. [2018-11-18 09:23:11,640 INFO L425 ceAbstractionStarter]: For program point L555(lines 555 870) no Hoare annotation was computed. [2018-11-18 09:23:11,641 INFO L425 ceAbstractionStarter]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,641 INFO L425 ceAbstractionStarter]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,641 INFO L425 ceAbstractionStarter]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,641 INFO L425 ceAbstractionStarter]: For program point L688(lines 688 870) no Hoare annotation was computed. [2018-11-18 09:23:11,641 INFO L425 ceAbstractionStarter]: For program point L490(lines 490 870) no Hoare annotation was computed. [2018-11-18 09:23:11,641 INFO L425 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-11-18 09:23:11,641 INFO L425 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-11-18 09:23:11,641 INFO L425 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-11-18 09:23:11,641 INFO L425 ceAbstractionStarter]: For program point L359(lines 359 870) no Hoare annotation was computed. [2018-11-18 09:23:11,641 INFO L425 ceAbstractionStarter]: For program point L293(lines 293 870) no Hoare annotation was computed. [2018-11-18 09:23:11,641 INFO L425 ceAbstractionStarter]: For program point L426(lines 426 870) no Hoare annotation was computed. [2018-11-18 09:23:11,641 INFO L425 ceAbstractionStarter]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,641 INFO L425 ceAbstractionStarter]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,641 INFO L425 ceAbstractionStarter]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,641 INFO L425 ceAbstractionStarter]: For program point L229(lines 229 870) no Hoare annotation was computed. [2018-11-18 09:23:11,642 INFO L425 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-11-18 09:23:11,642 INFO L425 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-11-18 09:23:11,642 INFO L425 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-11-18 09:23:11,642 INFO L425 ceAbstractionStarter]: For program point L758(lines 758 870) no Hoare annotation was computed. [2018-11-18 09:23:11,642 INFO L425 ceAbstractionStarter]: For program point L626(lines 626 870) no Hoare annotation was computed. [2018-11-18 09:23:11,642 INFO L425 ceAbstractionStarter]: For program point L825(lines 825 870) no Hoare annotation was computed. [2018-11-18 09:23:11,642 INFO L425 ceAbstractionStarter]: For program point L561(lines 561 870) no Hoare annotation was computed. [2018-11-18 09:23:11,642 INFO L425 ceAbstractionStarter]: For program point L495(lines 495 870) no Hoare annotation was computed. [2018-11-18 09:23:11,642 INFO L425 ceAbstractionStarter]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,642 INFO L425 ceAbstractionStarter]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,642 INFO L425 ceAbstractionStarter]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:23:11,642 INFO L425 ceAbstractionStarter]: For program point L694(lines 694 870) no Hoare annotation was computed. [2018-11-18 09:23:11,642 INFO L425 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-11-18 09:23:11,642 INFO L425 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-11-18 09:23:11,642 INFO L425 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-11-18 09:23:11,643 INFO L425 ceAbstractionStarter]: For program point L299(lines 299 870) no Hoare annotation was computed. [2018-11-18 09:23:11,643 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 09:23:11,643 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 8 ~a15~0) (= (+ ~a12~0 49) 0) (= ~a24~0 1) (= ~a21~0 7)) [2018-11-18 09:23:11,643 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 09:23:11,643 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 09:23:11,643 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (and (= 8 ~a15~0) (= (+ ~a12~0 49) 0) (= ~a24~0 1) (= ~a21~0 7)) (not (= 7 |old(~a21~0)|)) (not (= 1 |old(~a24~0)|)) (not (= 8 |old(~a15~0)|)) (not (= 0 (+ |old(~a12~0)| 49)))) [2018-11-18 09:23:11,643 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2018-11-18 09:23:11,643 INFO L421 ceAbstractionStarter]: At program point L888(line 888) the Hoare annotation is: (let ((.cse1 (not (= ~a15~0 9))) (.cse2 (not (= ~a15~0 7))) (.cse0 (= 1 ~a24~0))) (or (and (<= 12 ~a12~0) .cse0) (not (= 7 |old(~a21~0)|)) (and .cse1 .cse0 .cse2) (and .cse1 (= 6 ~a21~0) .cse2) (not (= 1 |old(~a24~0)|)) (not (= 8 |old(~a15~0)|)) (not (= 0 (+ |old(~a12~0)| 49))) (and (not (= 9 ~a21~0)) .cse0))) [2018-11-18 09:23:11,643 INFO L425 ceAbstractionStarter]: For program point L888-1(line 888) no Hoare annotation was computed. [2018-11-18 09:23:11,643 INFO L425 ceAbstractionStarter]: For program point L885(line 885) no Hoare annotation was computed. [2018-11-18 09:23:11,643 INFO L425 ceAbstractionStarter]: For program point L880-1(lines 880 889) no Hoare annotation was computed. [2018-11-18 09:23:11,644 INFO L421 ceAbstractionStarter]: At program point L880-3(lines 880 889) the Hoare annotation is: (let ((.cse1 (not (= ~a15~0 9))) (.cse2 (not (= ~a15~0 7))) (.cse0 (= 1 ~a24~0))) (or (and (<= 12 ~a12~0) .cse0) (not (= 7 |old(~a21~0)|)) (and .cse1 .cse0 .cse2) (and .cse1 (= 6 ~a21~0) .cse2) (not (= 1 |old(~a24~0)|)) (not (= 8 |old(~a15~0)|)) (not (= 0 (+ |old(~a12~0)| 49))) (and (not (= 9 ~a21~0)) .cse0))) [2018-11-18 09:23:11,644 INFO L425 ceAbstractionStarter]: For program point L880-4(lines 874 890) no Hoare annotation was computed. [2018-11-18 09:23:11,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:23:11 BoogieIcfgContainer [2018-11-18 09:23:11,665 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 09:23:11,665 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 09:23:11,666 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 09:23:11,666 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 09:23:11,666 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:20:59" (3/4) ... [2018-11-18 09:23:11,669 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 09:23:11,673 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 09:23:11,673 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-18 09:23:11,673 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 09:23:11,684 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 09:23:11,685 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 09:23:11,707 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((12 <= a12 && 1 == a24) || !(7 == \old(a21))) || ((!(a15 == 9) && 1 == a24) && !(a15 == 7))) || ((!(a15 == 9) && 6 == a21) && !(a15 == 7))) || !(1 == \old(a24))) || !(8 == \old(a15))) || !(0 == \old(a12) + 49)) || (!(9 == a21) && 1 == a24) [2018-11-18 09:23:11,779 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fc1614de-506a-4a3f-9ea2-4647f01819af/bin-2019/utaipan/witness.graphml [2018-11-18 09:23:11,779 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 09:23:11,780 INFO L168 Benchmark]: Toolchain (without parser) took 134198.29 ms. Allocated memory was 1.0 GB in the beginning and 5.0 GB in the end (delta: 3.9 GB). Free memory was 951.1 MB in the beginning and 3.7 GB in the end (delta: -2.7 GB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. [2018-11-18 09:23:11,780 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:23:11,780 INFO L168 Benchmark]: CACSL2BoogieTranslator took 409.56 ms. Allocated memory is still 1.0 GB. Free memory was 951.1 MB in the beginning and 908.1 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. [2018-11-18 09:23:11,780 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 908.1 MB in the beginning and 1.1 GB in the end (delta: -230.7 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2018-11-18 09:23:11,781 INFO L168 Benchmark]: Boogie Preprocessor took 53.48 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-18 09:23:11,781 INFO L168 Benchmark]: RCFGBuilder took 920.05 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: 124.1 MB). Peak memory consumption was 124.1 MB. Max. memory is 11.5 GB. [2018-11-18 09:23:11,781 INFO L168 Benchmark]: TraceAbstraction took 132619.47 ms. Allocated memory was 1.2 GB in the beginning and 5.0 GB in the end (delta: 3.8 GB). Free memory was 1.0 GB in the beginning and 3.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 4.1 GB. Max. memory is 11.5 GB. [2018-11-18 09:23:11,781 INFO L168 Benchmark]: Witness Printer took 113.61 ms. Allocated memory is still 5.0 GB. Free memory was 3.8 GB in the beginning and 3.7 GB in the end (delta: 78.5 MB). Peak memory consumption was 78.5 MB. Max. memory is 11.5 GB. [2018-11-18 09:23:11,783 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 409.56 ms. Allocated memory is still 1.0 GB. Free memory was 951.1 MB in the beginning and 908.1 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 78.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 908.1 MB in the beginning and 1.1 GB in the end (delta: -230.7 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.48 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 920.05 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: 124.1 MB). Peak memory consumption was 124.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 132619.47 ms. Allocated memory was 1.2 GB in the beginning and 5.0 GB in the end (delta: 3.8 GB). Free memory was 1.0 GB in the beginning and 3.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 4.1 GB. Max. memory is 11.5 GB. * Witness Printer took 113.61 ms. Allocated memory is still 5.0 GB. Free memory was 3.8 GB in the beginning and 3.7 GB in the end (delta: 78.5 MB). Peak memory consumption was 78.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 130]: 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: 880]: Loop Invariant Derived loop invariant: (((((((12 <= a12 && 1 == a24) || !(7 == \old(a21))) || ((!(a15 == 9) && 1 == a24) && !(a15 == 7))) || ((!(a15 == 9) && 6 == a21) && !(a15 == 7))) || !(1 == \old(a24))) || !(8 == \old(a15))) || !(0 == \old(a12) + 49)) || (!(9 == a21) && 1 == a24) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. SAFE Result, 132.5s OverallTime, 14 OverallIterations, 6 TraceHistogramMax, 65.3s AutomataDifference, 0.0s DeadEndRemovalTime, 7.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 2304 SDtfs, 21168 SDslu, 3036 SDs, 0 SdLazy, 26957 SolverSat, 4705 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 52.5s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 10038 GetRequests, 9772 SyntacticMatches, 11 SemanticMatches, 255 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2785 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20254occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 44.1s AbstIntTime, 9 AbstIntIterations, 3 AbstIntStrong, 0.9974816769295559 AbsIntWeakeningRatio, 0.08340573414422242 AbsIntAvgWeakeningVarsNumRemoved, 15.929626411815812 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 14 MinimizatonAttempts, 1701 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 379 PreInvPairs, 585 NumberOfFragments, 271 HoareAnnotationTreeSize, 379 FomulaSimplifications, 355804 FormulaSimplificationTreeSizeReduction, 1.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 230238 FormulaSimplificationTreeSizeReductionInter, 5.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 10839 NumberOfCodeBlocks, 10327 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 15094 ConstructedInterpolants, 45 QuantifiedInterpolants, 37495317 SizeOfPredicates, 27 NumberOfNonLiveVariables, 5588 ConjunctsInSsa, 82 ConjunctsInUnsatCore, 28 InterpolantComputations, 6 PerfectInterpolantSequences, 23123/26658 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...