./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label23_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_07a39ad4-e4f4-45f8-99d9-96e731f774a9/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_07a39ad4-e4f4-45f8-99d9-96e731f774a9/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_07a39ad4-e4f4-45f8-99d9-96e731f774a9/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_07a39ad4-e4f4-45f8-99d9-96e731f774a9/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label23_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_07a39ad4-e4f4-45f8-99d9-96e731f774a9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_07a39ad4-e4f4-45f8-99d9-96e731f774a9/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 e2b1b3074ba1970495a934bff93d8ae3ffe89d9a ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 18:41:13,362 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 18:41:13,363 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 18:41:13,369 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 18:41:13,369 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 18:41:13,370 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 18:41:13,370 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 18:41:13,371 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 18:41:13,372 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 18:41:13,372 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 18:41:13,373 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 18:41:13,373 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 18:41:13,373 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 18:41:13,374 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 18:41:13,374 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 18:41:13,374 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 18:41:13,375 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 18:41:13,376 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 18:41:13,377 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 18:41:13,377 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 18:41:13,378 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 18:41:13,378 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 18:41:13,380 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 18:41:13,380 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 18:41:13,380 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 18:41:13,380 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 18:41:13,381 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 18:41:13,381 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 18:41:13,382 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 18:41:13,382 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 18:41:13,382 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 18:41:13,383 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 18:41:13,383 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 18:41:13,383 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 18:41:13,383 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 18:41:13,384 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 18:41:13,384 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_07a39ad4-e4f4-45f8-99d9-96e731f774a9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 18:41:13,391 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 18:41:13,391 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 18:41:13,392 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 18:41:13,392 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 18:41:13,392 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 18:41:13,392 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 18:41:13,392 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 18:41:13,392 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 18:41:13,392 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 18:41:13,392 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 18:41:13,392 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 18:41:13,392 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 18:41:13,392 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 18:41:13,393 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 18:41:13,393 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 18:41:13,393 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 18:41:13,393 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 18:41:13,393 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 18:41:13,393 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 18:41:13,393 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 18:41:13,393 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 18:41:13,393 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 18:41:13,393 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 18:41:13,393 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 18:41:13,394 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 18:41:13,394 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 18:41:13,394 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 18:41:13,394 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 18:41:13,394 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 18:41:13,394 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 18:41:13,394 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 18:41:13,394 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 18:41:13,394 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 18:41:13,394 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 18:41:13,394 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 18:41:13,394 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 18:41:13,395 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_07a39ad4-e4f4-45f8-99d9-96e731f774a9/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 -> e2b1b3074ba1970495a934bff93d8ae3ffe89d9a [2018-12-09 18:41:13,411 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 18:41:13,417 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 18:41:13,419 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 18:41:13,420 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 18:41:13,420 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 18:41:13,421 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_07a39ad4-e4f4-45f8-99d9-96e731f774a9/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label23_true-unreach-call_false-termination.c [2018-12-09 18:41:13,456 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_07a39ad4-e4f4-45f8-99d9-96e731f774a9/bin-2019/utaipan/data/49dbc09d8/ac07a40e80ad4d49866fd90020911956/FLAG2b996e858 [2018-12-09 18:41:13,890 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 18:41:13,890 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_07a39ad4-e4f4-45f8-99d9-96e731f774a9/sv-benchmarks/c/eca-rers2012/Problem14_label23_true-unreach-call_false-termination.c [2018-12-09 18:41:13,899 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_07a39ad4-e4f4-45f8-99d9-96e731f774a9/bin-2019/utaipan/data/49dbc09d8/ac07a40e80ad4d49866fd90020911956/FLAG2b996e858 [2018-12-09 18:41:13,907 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_07a39ad4-e4f4-45f8-99d9-96e731f774a9/bin-2019/utaipan/data/49dbc09d8/ac07a40e80ad4d49866fd90020911956 [2018-12-09 18:41:13,909 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 18:41:13,910 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 18:41:13,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 18:41:13,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 18:41:13,912 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 18:41:13,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:41:13" (1/1) ... [2018-12-09 18:41:13,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cf0b28c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:41:13, skipping insertion in model container [2018-12-09 18:41:13,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:41:13" (1/1) ... [2018-12-09 18:41:13,919 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 18:41:13,947 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 18:41:14,141 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 18:41:14,143 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 18:41:14,243 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 18:41:14,252 INFO L195 MainTranslator]: Completed translation [2018-12-09 18:41:14,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:41:14 WrapperNode [2018-12-09 18:41:14,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 18:41:14,253 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 18:41:14,253 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 18:41:14,253 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 18:41:14,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:41:14" (1/1) ... [2018-12-09 18:41:14,268 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:41:14" (1/1) ... [2018-12-09 18:41:14,273 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 18:41:14,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 18:41:14,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 18:41:14,273 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 18:41:14,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:41:14" (1/1) ... [2018-12-09 18:41:14,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:41:14" (1/1) ... [2018-12-09 18:41:14,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:41:14" (1/1) ... [2018-12-09 18:41:14,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:41:14" (1/1) ... [2018-12-09 18:41:14,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:41:14" (1/1) ... [2018-12-09 18:41:14,308 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:41:14" (1/1) ... [2018-12-09 18:41:14,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:41:14" (1/1) ... [2018-12-09 18:41:14,316 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 18:41:14,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 18:41:14,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 18:41:14,316 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 18:41:14,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:41:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_07a39ad4-e4f4-45f8-99d9-96e731f774a9/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 18:41:14,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 18:41:14,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 18:41:14,352 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-12-09 18:41:14,352 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-12-09 18:41:14,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 18:41:14,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 18:41:14,352 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 18:41:14,352 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 18:41:14,993 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 18:41:14,993 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 18:41:14,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:41:14 BoogieIcfgContainer [2018-12-09 18:41:14,994 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 18:41:14,994 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 18:41:14,994 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 18:41:14,997 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 18:41:14,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:41:13" (1/3) ... [2018-12-09 18:41:14,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bdbb31e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:41:14, skipping insertion in model container [2018-12-09 18:41:14,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:41:14" (2/3) ... [2018-12-09 18:41:14,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bdbb31e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:41:14, skipping insertion in model container [2018-12-09 18:41:14,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:41:14" (3/3) ... [2018-12-09 18:41:15,000 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label23_true-unreach-call_false-termination.c [2018-12-09 18:41:15,008 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 18:41:15,015 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 18:41:15,028 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 18:41:15,056 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 18:41:15,057 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 18:41:15,057 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 18:41:15,057 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 18:41:15,057 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 18:41:15,057 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 18:41:15,057 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 18:41:15,057 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 18:41:15,076 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2018-12-09 18:41:15,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-12-09 18:41:15,082 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:41:15,083 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:41:15,085 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:41:15,089 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:41:15,089 INFO L82 PathProgramCache]: Analyzing trace with hash -1582887541, now seen corresponding path program 1 times [2018-12-09 18:41:15,090 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:41:15,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:41:15,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:41:15,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:41:15,121 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:41:15,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:41:15,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:41:15,270 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:41:15,271 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 18:41:15,271 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 18:41:15,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 18:41:15,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 18:41:15,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 18:41:15,289 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 3 states. [2018-12-09 18:41:15,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:41:15,910 INFO L93 Difference]: Finished difference Result 688 states and 1223 transitions. [2018-12-09 18:41:15,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 18:41:15,911 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2018-12-09 18:41:15,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:41:15,922 INFO L225 Difference]: With dead ends: 688 [2018-12-09 18:41:15,923 INFO L226 Difference]: Without dead ends: 372 [2018-12-09 18:41:15,927 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 18:41:15,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2018-12-09 18:41:15,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2018-12-09 18:41:15,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2018-12-09 18:41:15,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 602 transitions. [2018-12-09 18:41:15,974 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 602 transitions. Word has length 38 [2018-12-09 18:41:15,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:41:15,974 INFO L480 AbstractCegarLoop]: Abstraction has 372 states and 602 transitions. [2018-12-09 18:41:15,975 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 18:41:15,975 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 602 transitions. [2018-12-09 18:41:15,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-12-09 18:41:15,977 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:41:15,978 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-09 18:41:15,978 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:41:15,978 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:41:15,978 INFO L82 PathProgramCache]: Analyzing trace with hash 980020742, now seen corresponding path program 1 times [2018-12-09 18:41:15,978 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:41:15,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:41:15,979 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:41:15,980 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:41:15,980 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:41:16,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:41:16,092 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:41:16,092 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:41:16,092 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 18:41:16,092 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 18:41:16,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 18:41:16,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 18:41:16,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 18:41:16,094 INFO L87 Difference]: Start difference. First operand 372 states and 602 transitions. Second operand 6 states. [2018-12-09 18:41:16,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:41:16,679 INFO L93 Difference]: Finished difference Result 936 states and 1526 transitions. [2018-12-09 18:41:16,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 18:41:16,685 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 112 [2018-12-09 18:41:16,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:41:16,688 INFO L225 Difference]: With dead ends: 936 [2018-12-09 18:41:16,688 INFO L226 Difference]: Without dead ends: 570 [2018-12-09 18:41:16,689 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-12-09 18:41:16,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2018-12-09 18:41:16,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 562. [2018-12-09 18:41:16,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2018-12-09 18:41:16,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 814 transitions. [2018-12-09 18:41:16,712 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 814 transitions. Word has length 112 [2018-12-09 18:41:16,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:41:16,713 INFO L480 AbstractCegarLoop]: Abstraction has 562 states and 814 transitions. [2018-12-09 18:41:16,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 18:41:16,713 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 814 transitions. [2018-12-09 18:41:16,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-12-09 18:41:16,714 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:41:16,714 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-09 18:41:16,715 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:41:16,715 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:41:16,715 INFO L82 PathProgramCache]: Analyzing trace with hash -111529671, now seen corresponding path program 1 times [2018-12-09 18:41:16,715 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:41:16,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:41:16,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:41:16,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:41:16,716 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:41:16,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:41:16,859 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:41:16,860 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:41:16,860 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 18:41:16,860 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 18:41:16,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 18:41:16,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 18:41:16,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-09 18:41:16,861 INFO L87 Difference]: Start difference. First operand 562 states and 814 transitions. Second operand 6 states. [2018-12-09 18:41:17,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:41:17,625 INFO L93 Difference]: Finished difference Result 1334 states and 1932 transitions. [2018-12-09 18:41:17,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 18:41:17,626 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 121 [2018-12-09 18:41:17,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:41:17,629 INFO L225 Difference]: With dead ends: 1334 [2018-12-09 18:41:17,629 INFO L226 Difference]: Without dead ends: 778 [2018-12-09 18:41:17,630 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-12-09 18:41:17,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2018-12-09 18:41:17,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 750. [2018-12-09 18:41:17,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 750 states. [2018-12-09 18:41:17,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1019 transitions. [2018-12-09 18:41:17,652 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1019 transitions. Word has length 121 [2018-12-09 18:41:17,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:41:17,652 INFO L480 AbstractCegarLoop]: Abstraction has 750 states and 1019 transitions. [2018-12-09 18:41:17,652 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 18:41:17,652 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1019 transitions. [2018-12-09 18:41:17,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2018-12-09 18:41:17,655 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:41:17,655 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:41:17,655 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:41:17,655 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:41:17,655 INFO L82 PathProgramCache]: Analyzing trace with hash 494910482, now seen corresponding path program 1 times [2018-12-09 18:41:17,655 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:41:17,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:41:17,656 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:41:17,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:41:17,656 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:41:17,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:41:17,956 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 143 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:41:17,956 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:41:17,956 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 18:41:17,957 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 206 with the following transitions: [2018-12-09 18:41:17,958 INFO L205 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], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [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], [550], [551], [554], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 18:41:17,982 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 18:41:17,982 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 18:41:18,250 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 18:41:18,251 INFO L272 AbstractInterpreter]: Visited 93 different actions 178 times. Merged at 3 different actions 3 times. Never widened. Performed 1478 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1478 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-12-09 18:41:18,262 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:41:18,263 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 18:41:18,263 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:41:18,263 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_07a39ad4-e4f4-45f8-99d9-96e731f774a9/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 18:41:18,270 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:41:18,270 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 18:41:18,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:41:18,323 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:41:18,497 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 93 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:41:18,497 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 18:41:18,725 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 66 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:41:18,741 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 18:41:18,741 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 20 [2018-12-09 18:41:18,741 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 18:41:18,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-09 18:41:18,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-09 18:41:18,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2018-12-09 18:41:18,742 INFO L87 Difference]: Start difference. First operand 750 states and 1019 transitions. Second operand 15 states. [2018-12-09 18:41:20,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:41:20,295 INFO L93 Difference]: Finished difference Result 1793 states and 2444 transitions. [2018-12-09 18:41:20,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-09 18:41:20,296 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 205 [2018-12-09 18:41:20,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:41:20,299 INFO L225 Difference]: With dead ends: 1793 [2018-12-09 18:41:20,299 INFO L226 Difference]: Without dead ends: 1004 [2018-12-09 18:41:20,301 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 402 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=290, Invalid=832, Unknown=0, NotChecked=0, Total=1122 [2018-12-09 18:41:20,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2018-12-09 18:41:20,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 940. [2018-12-09 18:41:20,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 940 states. [2018-12-09 18:41:20,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1123 transitions. [2018-12-09 18:41:20,324 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1123 transitions. Word has length 205 [2018-12-09 18:41:20,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:41:20,324 INFO L480 AbstractCegarLoop]: Abstraction has 940 states and 1123 transitions. [2018-12-09 18:41:20,324 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-09 18:41:20,324 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1123 transitions. [2018-12-09 18:41:20,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2018-12-09 18:41:20,326 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:41:20,327 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:41:20,327 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:41:20,327 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:41:20,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1312430241, now seen corresponding path program 1 times [2018-12-09 18:41:20,327 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:41:20,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:41:20,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:41:20,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:41:20,328 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:41:20,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:41:20,542 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 111 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:41:20,542 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:41:20,542 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 18:41:20,542 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 231 with the following transitions: [2018-12-09 18:41:20,543 INFO L205 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], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [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], [550], [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], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 18:41:20,545 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 18:41:20,545 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 18:41:20,629 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 18:41:20,629 INFO L272 AbstractInterpreter]: Visited 114 different actions 114 times. Never merged. Never widened. Performed 1003 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1003 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 24 variables. [2018-12-09 18:41:20,630 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:41:20,631 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 18:41:20,826 INFO L227 lantSequenceWeakener]: Weakened 221 states. On average, predicates are now at 77.69% of their original sizes. [2018-12-09 18:41:20,826 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 18:41:20,849 INFO L418 sIntCurrentIteration]: We unified 229 AI predicates to 229 [2018-12-09 18:41:20,850 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 18:41:20,850 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 18:41:20,850 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2018-12-09 18:41:20,850 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 18:41:20,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 18:41:20,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 18:41:20,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 18:41:20,851 INFO L87 Difference]: Start difference. First operand 940 states and 1123 transitions. Second operand 6 states. [2018-12-09 18:41:30,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:41:30,645 INFO L93 Difference]: Finished difference Result 2057 states and 2427 transitions. [2018-12-09 18:41:30,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 18:41:30,645 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 230 [2018-12-09 18:41:30,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:41:30,647 INFO L225 Difference]: With dead ends: 2057 [2018-12-09 18:41:30,647 INFO L226 Difference]: Without dead ends: 1123 [2018-12-09 18:41:30,648 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 230 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-09 18:41:30,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2018-12-09 18:41:30,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 1122. [2018-12-09 18:41:30,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1122 states. [2018-12-09 18:41:30,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1307 transitions. [2018-12-09 18:41:30,662 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1307 transitions. Word has length 230 [2018-12-09 18:41:30,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:41:30,662 INFO L480 AbstractCegarLoop]: Abstraction has 1122 states and 1307 transitions. [2018-12-09 18:41:30,662 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 18:41:30,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1307 transitions. [2018-12-09 18:41:30,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2018-12-09 18:41:30,665 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:41:30,665 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-12-09 18:41:30,665 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:41:30,665 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:41:30,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1880402258, now seen corresponding path program 1 times [2018-12-09 18:41:30,665 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:41:30,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:41:30,666 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:41:30,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:41:30,666 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:41:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:41:30,830 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 260 proven. 2 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-12-09 18:41:30,831 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:41:30,831 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 18:41:30,831 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 341 with the following transitions: [2018-12-09 18:41:30,831 INFO L205 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], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [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], [550], [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], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 18:41:30,833 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 18:41:30,833 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 18:41:34,358 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 18:41:34,358 INFO L272 AbstractInterpreter]: Visited 119 different actions 350 times. Merged at 6 different actions 13 times. Never widened. Performed 3300 root evaluator evaluations with a maximum evaluation depth of 21. Performed 3300 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-09 18:41:34,360 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:41:34,360 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 18:41:34,937 INFO L227 lantSequenceWeakener]: Weakened 337 states. On average, predicates are now at 80.24% of their original sizes. [2018-12-09 18:41:34,938 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 18:41:34,971 INFO L418 sIntCurrentIteration]: We unified 339 AI predicates to 339 [2018-12-09 18:41:34,971 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 18:41:34,971 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 18:41:34,971 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2018-12-09 18:41:34,971 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 18:41:34,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 18:41:34,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 18:41:34,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-09 18:41:34,972 INFO L87 Difference]: Start difference. First operand 1122 states and 1307 transitions. Second operand 9 states. [2018-12-09 18:41:50,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:41:50,143 INFO L93 Difference]: Finished difference Result 2639 states and 3080 transitions. [2018-12-09 18:41:50,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-09 18:41:50,143 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 340 [2018-12-09 18:41:50,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:41:50,148 INFO L225 Difference]: With dead ends: 2639 [2018-12-09 18:41:50,148 INFO L226 Difference]: Without dead ends: 1705 [2018-12-09 18:41:50,150 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 346 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2018-12-09 18:41:50,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2018-12-09 18:41:50,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 1682. [2018-12-09 18:41:50,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1682 states. [2018-12-09 18:41:50,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1682 states to 1682 states and 1914 transitions. [2018-12-09 18:41:50,183 INFO L78 Accepts]: Start accepts. Automaton has 1682 states and 1914 transitions. Word has length 340 [2018-12-09 18:41:50,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:41:50,184 INFO L480 AbstractCegarLoop]: Abstraction has 1682 states and 1914 transitions. [2018-12-09 18:41:50,184 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 18:41:50,184 INFO L276 IsEmpty]: Start isEmpty. Operand 1682 states and 1914 transitions. [2018-12-09 18:41:50,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2018-12-09 18:41:50,191 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:41:50,191 INFO L402 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 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] [2018-12-09 18:41:50,191 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:41:50,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:41:50,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1870233950, now seen corresponding path program 1 times [2018-12-09 18:41:50,191 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:41:50,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:41:50,192 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:41:50,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:41:50,192 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:41:50,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:41:50,601 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 397 proven. 150 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-12-09 18:41:50,601 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:41:50,601 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 18:41:50,601 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 414 with the following transitions: [2018-12-09 18:41:50,602 INFO L205 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], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [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], [510], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [550], [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], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 18:41:50,603 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 18:41:50,604 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 18:41:54,710 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 18:41:54,710 INFO L272 AbstractInterpreter]: Visited 121 different actions 477 times. Merged at 8 different actions 26 times. Never widened. Performed 4629 root evaluator evaluations with a maximum evaluation depth of 21. Performed 4629 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 7 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-09 18:41:54,713 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:41:54,713 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 18:41:54,713 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:41:54,713 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_07a39ad4-e4f4-45f8-99d9-96e731f774a9/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 18:41:54,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:41:54,719 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 18:41:54,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:41:54,773 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:41:54,865 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 478 proven. 2 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2018-12-09 18:41:54,865 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 18:41:55,023 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 279 proven. 73 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2018-12-09 18:41:55,038 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 18:41:55,038 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-12-09 18:41:55,038 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 18:41:55,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-12-09 18:41:55,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-12-09 18:41:55,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2018-12-09 18:41:55,039 INFO L87 Difference]: Start difference. First operand 1682 states and 1914 transitions. Second operand 17 states. [2018-12-09 18:41:56,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:41:56,741 INFO L93 Difference]: Finished difference Result 4078 states and 4938 transitions. [2018-12-09 18:41:56,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-12-09 18:41:56,741 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 413 [2018-12-09 18:41:56,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:41:56,748 INFO L225 Difference]: With dead ends: 4078 [2018-12-09 18:41:56,748 INFO L226 Difference]: Without dead ends: 2486 [2018-12-09 18:41:56,753 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 892 GetRequests, 841 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 717 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=552, Invalid=2204, Unknown=0, NotChecked=0, Total=2756 [2018-12-09 18:41:56,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2486 states. [2018-12-09 18:41:56,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2486 to 2432. [2018-12-09 18:41:56,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2432 states. [2018-12-09 18:41:56,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2432 states to 2432 states and 2625 transitions. [2018-12-09 18:41:56,800 INFO L78 Accepts]: Start accepts. Automaton has 2432 states and 2625 transitions. Word has length 413 [2018-12-09 18:41:56,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:41:56,800 INFO L480 AbstractCegarLoop]: Abstraction has 2432 states and 2625 transitions. [2018-12-09 18:41:56,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-12-09 18:41:56,800 INFO L276 IsEmpty]: Start isEmpty. Operand 2432 states and 2625 transitions. [2018-12-09 18:41:56,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 621 [2018-12-09 18:41:56,805 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:41:56,805 INFO L402 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2018-12-09 18:41:56,805 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:41:56,805 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:41:56,806 INFO L82 PathProgramCache]: Analyzing trace with hash -877290118, now seen corresponding path program 1 times [2018-12-09 18:41:56,806 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:41:56,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:41:56,806 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:41:56,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:41:56,806 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:41:56,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:41:57,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1108 backedges. 500 proven. 74 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2018-12-09 18:41:57,056 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:41:57,056 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 18:41:57,056 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 621 with the following transitions: [2018-12-09 18:41:57,056 INFO L205 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], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [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], [514], [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], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 18:41:57,058 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 18:41:57,058 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 18:42:01,039 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 18:42:01,039 INFO L272 AbstractInterpreter]: Visited 190 different actions 756 times. Merged at 8 different actions 29 times. Widened at 1 different actions 1 times. Performed 8369 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8369 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 7 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-09 18:42:01,041 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:42:01,041 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 18:42:01,041 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:42:01,041 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_07a39ad4-e4f4-45f8-99d9-96e731f774a9/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 18:42:01,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:42:01,048 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 18:42:01,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:42:01,123 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:42:01,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1108 backedges. 752 proven. 2 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2018-12-09 18:42:01,231 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 18:42:01,432 INFO L134 CoverageAnalysis]: Checked inductivity of 1108 backedges. 500 proven. 74 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2018-12-09 18:42:01,447 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 18:42:01,447 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-12-09 18:42:01,447 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 18:42:01,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 18:42:01,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 18:42:01,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-12-09 18:42:01,448 INFO L87 Difference]: Start difference. First operand 2432 states and 2625 transitions. Second operand 7 states. [2018-12-09 18:42:03,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:42:03,260 INFO L93 Difference]: Finished difference Result 5790 states and 6849 transitions. [2018-12-09 18:42:03,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-09 18:42:03,260 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 620 [2018-12-09 18:42:03,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:42:03,267 INFO L225 Difference]: With dead ends: 5790 [2018-12-09 18:42:03,267 INFO L226 Difference]: Without dead ends: 3546 [2018-12-09 18:42:03,272 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1257 GetRequests, 1243 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2018-12-09 18:42:03,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3546 states. [2018-12-09 18:42:03,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3546 to 3388. [2018-12-09 18:42:03,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3388 states. [2018-12-09 18:42:03,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3388 states to 3388 states and 3719 transitions. [2018-12-09 18:42:03,341 INFO L78 Accepts]: Start accepts. Automaton has 3388 states and 3719 transitions. Word has length 620 [2018-12-09 18:42:03,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:42:03,341 INFO L480 AbstractCegarLoop]: Abstraction has 3388 states and 3719 transitions. [2018-12-09 18:42:03,341 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 18:42:03,341 INFO L276 IsEmpty]: Start isEmpty. Operand 3388 states and 3719 transitions. [2018-12-09 18:42:03,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2018-12-09 18:42:03,344 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:42:03,345 INFO L402 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:42:03,345 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:42:03,345 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:42:03,345 INFO L82 PathProgramCache]: Analyzing trace with hash -2088235919, now seen corresponding path program 1 times [2018-12-09 18:42:03,345 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:42:03,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:42:03,346 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:42:03,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:42:03,346 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:42:03,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:42:03,634 INFO L134 CoverageAnalysis]: Checked inductivity of 1115 backedges. 507 proven. 74 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2018-12-09 18:42:03,634 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:42:03,634 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 18:42:03,634 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 628 with the following transitions: [2018-12-09 18:42:03,634 INFO L205 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], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [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], [514], [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], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 18:42:03,636 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 18:42:03,636 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 18:42:07,634 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 18:42:07,635 INFO L272 AbstractInterpreter]: Visited 191 different actions 765 times. Merged at 9 different actions 34 times. Widened at 1 different actions 1 times. Performed 8506 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8506 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 9 fixpoints after 4 different actions. Largest state had 24 variables. [2018-12-09 18:42:07,637 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:42:07,637 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 18:42:07,637 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:42:07,637 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_07a39ad4-e4f4-45f8-99d9-96e731f774a9/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 18:42:07,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:42:07,643 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 18:42:07,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:42:07,710 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:42:07,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1115 backedges. 759 proven. 2 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2018-12-09 18:42:07,822 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 18:42:08,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1115 backedges. 507 proven. 74 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2018-12-09 18:42:08,035 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 18:42:08,035 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-12-09 18:42:08,035 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 18:42:08,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 18:42:08,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 18:42:08,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-12-09 18:42:08,036 INFO L87 Difference]: Start difference. First operand 3388 states and 3719 transitions. Second operand 7 states. [2018-12-09 18:42:08,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:42:08,966 INFO L93 Difference]: Finished difference Result 7880 states and 9406 transitions. [2018-12-09 18:42:08,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-09 18:42:08,967 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 627 [2018-12-09 18:42:08,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:42:08,976 INFO L225 Difference]: With dead ends: 7880 [2018-12-09 18:42:08,976 INFO L226 Difference]: Without dead ends: 4680 [2018-12-09 18:42:08,980 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1271 GetRequests, 1257 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2018-12-09 18:42:08,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4680 states. [2018-12-09 18:42:09,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4680 to 4526. [2018-12-09 18:42:09,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4526 states. [2018-12-09 18:42:09,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4526 states to 4526 states and 5080 transitions. [2018-12-09 18:42:09,041 INFO L78 Accepts]: Start accepts. Automaton has 4526 states and 5080 transitions. Word has length 627 [2018-12-09 18:42:09,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:42:09,042 INFO L480 AbstractCegarLoop]: Abstraction has 4526 states and 5080 transitions. [2018-12-09 18:42:09,042 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 18:42:09,042 INFO L276 IsEmpty]: Start isEmpty. Operand 4526 states and 5080 transitions. [2018-12-09 18:42:09,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 754 [2018-12-09 18:42:09,045 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:42:09,045 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:42:09,046 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:42:09,046 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:42:09,046 INFO L82 PathProgramCache]: Analyzing trace with hash -909749628, now seen corresponding path program 1 times [2018-12-09 18:42:09,046 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:42:09,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:42:09,046 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:42:09,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:42:09,047 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:42:09,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:42:09,967 INFO L134 CoverageAnalysis]: Checked inductivity of 1675 backedges. 547 proven. 767 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2018-12-09 18:42:09,968 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:42:09,968 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 18:42:09,968 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 754 with the following transitions: [2018-12-09 18:42:09,968 INFO L205 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], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [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], [514], [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], [750], [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], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 18:42:09,970 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 18:42:09,970 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 18:42:13,985 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 18:42:13,986 INFO L272 AbstractInterpreter]: Visited 191 different actions 764 times. Merged at 9 different actions 33 times. Widened at 1 different actions 1 times. Performed 8467 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8467 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 9 fixpoints after 4 different actions. Largest state had 24 variables. [2018-12-09 18:42:13,987 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:42:13,987 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 18:42:13,987 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:42:13,987 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_07a39ad4-e4f4-45f8-99d9-96e731f774a9/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 18:42:13,993 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:42:13,993 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 18:42:14,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:42:14,072 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:42:14,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1675 backedges. 201 proven. 0 refuted. 0 times theorem prover too weak. 1474 trivial. 0 not checked. [2018-12-09 18:42:14,212 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 18:42:14,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1675 backedges. 201 proven. 0 refuted. 0 times theorem prover too weak. 1474 trivial. 0 not checked. [2018-12-09 18:42:14,376 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-09 18:42:14,376 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [14] total 16 [2018-12-09 18:42:14,376 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 18:42:14,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 18:42:14,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 18:42:14,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-12-09 18:42:14,377 INFO L87 Difference]: Start difference. First operand 4526 states and 5080 transitions. Second operand 3 states. [2018-12-09 18:42:14,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:42:14,689 INFO L93 Difference]: Finished difference Result 9964 states and 11319 transitions. [2018-12-09 18:42:14,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 18:42:14,689 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 753 [2018-12-09 18:42:14,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:42:14,697 INFO L225 Difference]: With dead ends: 9964 [2018-12-09 18:42:14,698 INFO L226 Difference]: Without dead ends: 5626 [2018-12-09 18:42:14,703 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1521 GetRequests, 1507 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-12-09 18:42:14,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5626 states. [2018-12-09 18:42:14,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5626 to 5444. [2018-12-09 18:42:14,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5444 states. [2018-12-09 18:42:14,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5444 states to 5444 states and 6118 transitions. [2018-12-09 18:42:14,767 INFO L78 Accepts]: Start accepts. Automaton has 5444 states and 6118 transitions. Word has length 753 [2018-12-09 18:42:14,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:42:14,768 INFO L480 AbstractCegarLoop]: Abstraction has 5444 states and 6118 transitions. [2018-12-09 18:42:14,768 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 18:42:14,768 INFO L276 IsEmpty]: Start isEmpty. Operand 5444 states and 6118 transitions. [2018-12-09 18:42:14,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 760 [2018-12-09 18:42:14,772 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:42:14,773 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:42:14,773 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:42:14,773 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:42:14,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1472630376, now seen corresponding path program 1 times [2018-12-09 18:42:14,773 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:42:14,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:42:14,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:42:14,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:42:14,774 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:42:14,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:42:15,702 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 547 proven. 785 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2018-12-09 18:42:15,702 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:42:15,702 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 18:42:15,703 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 760 with the following transitions: [2018-12-09 18:42:15,703 INFO L205 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], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [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], [538], [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], [750], [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], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 18:42:15,704 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 18:42:15,704 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 18:42:19,676 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 18:42:19,677 INFO L272 AbstractInterpreter]: Visited 191 different actions 766 times. Merged at 9 different actions 35 times. Widened at 1 different actions 1 times. Performed 8419 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8419 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 9 fixpoints after 3 different actions. Largest state had 24 variables. [2018-12-09 18:42:19,679 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:42:19,679 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 18:42:19,679 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:42:19,679 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_07a39ad4-e4f4-45f8-99d9-96e731f774a9/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 18:42:19,704 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:42:19,704 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 18:42:19,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:42:19,792 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:42:19,946 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 201 proven. 0 refuted. 0 times theorem prover too weak. 1504 trivial. 0 not checked. [2018-12-09 18:42:19,946 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 18:42:20,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 201 proven. 0 refuted. 0 times theorem prover too weak. 1504 trivial. 0 not checked. [2018-12-09 18:42:20,121 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-09 18:42:20,122 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [14] total 15 [2018-12-09 18:42:20,122 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 18:42:20,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 18:42:20,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 18:42:20,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2018-12-09 18:42:20,122 INFO L87 Difference]: Start difference. First operand 5444 states and 6118 transitions. Second operand 3 states. [2018-12-09 18:42:20,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:42:20,413 INFO L93 Difference]: Finished difference Result 6922 states and 7970 transitions. [2018-12-09 18:42:20,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 18:42:20,413 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 759 [2018-12-09 18:42:20,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:42:20,424 INFO L225 Difference]: With dead ends: 6922 [2018-12-09 18:42:20,424 INFO L226 Difference]: Without dead ends: 6920 [2018-12-09 18:42:20,426 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1533 GetRequests, 1518 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2018-12-09 18:42:20,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6920 states. [2018-12-09 18:42:20,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6920 to 5994. [2018-12-09 18:42:20,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5994 states. [2018-12-09 18:42:20,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5994 states to 5994 states and 6863 transitions. [2018-12-09 18:42:20,490 INFO L78 Accepts]: Start accepts. Automaton has 5994 states and 6863 transitions. Word has length 759 [2018-12-09 18:42:20,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:42:20,490 INFO L480 AbstractCegarLoop]: Abstraction has 5994 states and 6863 transitions. [2018-12-09 18:42:20,490 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 18:42:20,490 INFO L276 IsEmpty]: Start isEmpty. Operand 5994 states and 6863 transitions. [2018-12-09 18:42:20,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 763 [2018-12-09 18:42:20,495 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:42:20,495 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:42:20,495 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:42:20,495 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:42:20,496 INFO L82 PathProgramCache]: Analyzing trace with hash -573310341, now seen corresponding path program 1 times [2018-12-09 18:42:20,496 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:42:20,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:42:20,496 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:42:20,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:42:20,497 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:42:20,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:42:21,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1720 backedges. 547 proven. 794 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2018-12-09 18:42:21,420 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:42:21,420 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 18:42:21,421 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 763 with the following transitions: [2018-12-09 18:42:21,421 INFO L205 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], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [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], [550], [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], [750], [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], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 18:42:21,423 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 18:42:21,423 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 18:42:25,387 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 18:42:25,387 INFO L272 AbstractInterpreter]: Visited 191 different actions 767 times. Merged at 9 different actions 36 times. Widened at 1 different actions 2 times. Performed 8419 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8419 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 9 fixpoints after 4 different actions. Largest state had 24 variables. [2018-12-09 18:42:25,389 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:42:25,389 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 18:42:25,389 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:42:25,389 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_07a39ad4-e4f4-45f8-99d9-96e731f774a9/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 [2018-12-09 18:42:25,395 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:42:25,395 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 18:42:25,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:42:25,477 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:42:25,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1720 backedges. 1038 proven. 2 refuted. 0 times theorem prover too weak. 680 trivial. 0 not checked. [2018-12-09 18:42:25,823 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 18:42:26,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1720 backedges. 671 proven. 83 refuted. 0 times theorem prover too weak. 966 trivial. 0 not checked. [2018-12-09 18:42:26,174 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 18:42:26,174 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 6, 6] total 20 [2018-12-09 18:42:26,174 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 18:42:26,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-12-09 18:42:26,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-12-09 18:42:26,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2018-12-09 18:42:26,175 INFO L87 Difference]: Start difference. First operand 5994 states and 6863 transitions. Second operand 18 states. [2018-12-09 18:42:29,277 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 41 [2018-12-09 18:42:29,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:42:29,688 INFO L93 Difference]: Finished difference Result 12636 states and 14577 transitions. [2018-12-09 18:42:29,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-12-09 18:42:29,689 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 762 [2018-12-09 18:42:29,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:42:29,704 INFO L225 Difference]: With dead ends: 12636 [2018-12-09 18:42:29,704 INFO L226 Difference]: Without dead ends: 6830 [2018-12-09 18:42:29,713 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1616 GetRequests, 1546 SyntacticMatches, 5 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1272 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=855, Invalid=3567, Unknown=0, NotChecked=0, Total=4422 [2018-12-09 18:42:29,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6830 states. [2018-12-09 18:42:29,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6830 to 5822. [2018-12-09 18:42:29,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5822 states. [2018-12-09 18:42:29,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5822 states to 5822 states and 6466 transitions. [2018-12-09 18:42:29,785 INFO L78 Accepts]: Start accepts. Automaton has 5822 states and 6466 transitions. Word has length 762 [2018-12-09 18:42:29,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:42:29,786 INFO L480 AbstractCegarLoop]: Abstraction has 5822 states and 6466 transitions. [2018-12-09 18:42:29,786 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-12-09 18:42:29,786 INFO L276 IsEmpty]: Start isEmpty. Operand 5822 states and 6466 transitions. [2018-12-09 18:42:29,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 796 [2018-12-09 18:42:29,790 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:42:29,790 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:42:29,790 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:42:29,791 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:42:29,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1482993118, now seen corresponding path program 1 times [2018-12-09 18:42:29,791 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:42:29,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:42:29,791 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:42:29,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:42:29,791 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:42:29,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:42:30,971 INFO L134 CoverageAnalysis]: Checked inductivity of 1760 backedges. 720 proven. 709 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2018-12-09 18:42:30,971 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:42:30,971 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 18:42:30,971 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 796 with the following transitions: [2018-12-09 18:42:30,972 INFO L205 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], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [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], [550], [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], [854], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 18:42:30,973 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 18:42:30,973 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 18:42:34,935 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 18:42:34,935 INFO L272 AbstractInterpreter]: Visited 192 different actions 766 times. Merged at 9 different actions 31 times. Never widened. Performed 8420 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8420 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 11 fixpoints after 3 different actions. Largest state had 24 variables. [2018-12-09 18:42:34,936 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:42:34,937 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 18:42:34,937 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:42:34,937 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_07a39ad4-e4f4-45f8-99d9-96e731f774a9/bin-2019/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 18:42:34,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:42:34,942 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 18:42:35,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:42:35,024 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:42:35,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1760 backedges. 1071 proven. 2 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2018-12-09 18:42:35,212 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 18:42:35,498 INFO L134 CoverageAnalysis]: Checked inductivity of 1760 backedges. 704 proven. 83 refuted. 0 times theorem prover too weak. 973 trivial. 0 not checked. [2018-12-09 18:42:35,514 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 18:42:35,514 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 5, 5] total 22 [2018-12-09 18:42:35,514 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 18:42:35,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-12-09 18:42:35,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-12-09 18:42:35,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2018-12-09 18:42:35,515 INFO L87 Difference]: Start difference. First operand 5822 states and 6466 transitions. Second operand 20 states. [2018-12-09 18:42:39,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:42:39,889 INFO L93 Difference]: Finished difference Result 12062 states and 13529 transitions. [2018-12-09 18:42:39,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2018-12-09 18:42:39,890 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 795 [2018-12-09 18:42:39,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:42:39,897 INFO L225 Difference]: With dead ends: 12062 [2018-12-09 18:42:39,897 INFO L226 Difference]: Without dead ends: 6430 [2018-12-09 18:42:39,902 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1734 GetRequests, 1644 SyntacticMatches, 3 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2499 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1170, Invalid=6662, Unknown=0, NotChecked=0, Total=7832 [2018-12-09 18:42:39,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6430 states. [2018-12-09 18:42:39,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6430 to 6364. [2018-12-09 18:42:39,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6364 states. [2018-12-09 18:42:39,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6364 states to 6364 states and 6885 transitions. [2018-12-09 18:42:39,969 INFO L78 Accepts]: Start accepts. Automaton has 6364 states and 6885 transitions. Word has length 795 [2018-12-09 18:42:39,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:42:39,969 INFO L480 AbstractCegarLoop]: Abstraction has 6364 states and 6885 transitions. [2018-12-09 18:42:39,969 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-12-09 18:42:39,970 INFO L276 IsEmpty]: Start isEmpty. Operand 6364 states and 6885 transitions. [2018-12-09 18:42:39,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1045 [2018-12-09 18:42:39,977 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:42:39,977 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 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, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:42:39,978 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:42:39,978 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:42:39,978 INFO L82 PathProgramCache]: Analyzing trace with hash -673252566, now seen corresponding path program 1 times [2018-12-09 18:42:39,978 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:42:39,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:42:39,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:42:39,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:42:39,978 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:42:40,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:42:40,965 INFO L134 CoverageAnalysis]: Checked inductivity of 3481 backedges. 1070 proven. 537 refuted. 0 times theorem prover too weak. 1874 trivial. 0 not checked. [2018-12-09 18:42:40,965 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:42:40,965 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 18:42:40,965 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1045 with the following transitions: [2018-12-09 18:42:40,966 INFO L205 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], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [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], [514], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [550], [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], [919], [923], [926], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 18:42:40,968 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 18:42:40,968 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 18:42:44,944 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 18:42:44,944 INFO L272 AbstractInterpreter]: Visited 195 different actions 787 times. Merged at 11 different actions 40 times. Widened at 1 different actions 1 times. Performed 8744 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8744 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 16 fixpoints after 6 different actions. Largest state had 24 variables. [2018-12-09 18:42:44,946 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:42:44,946 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 18:42:44,946 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:42:44,946 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_07a39ad4-e4f4-45f8-99d9-96e731f774a9/bin-2019/utaipan/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 18:42:44,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:42:44,953 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 18:42:45,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:42:45,063 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:42:45,364 INFO L134 CoverageAnalysis]: Checked inductivity of 3481 backedges. 1427 proven. 2 refuted. 0 times theorem prover too weak. 2052 trivial. 0 not checked. [2018-12-09 18:42:45,364 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 18:42:45,845 INFO L134 CoverageAnalysis]: Checked inductivity of 3481 backedges. 841 proven. 74 refuted. 0 times theorem prover too weak. 2566 trivial. 0 not checked. [2018-12-09 18:42:45,861 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 18:42:45,861 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5] total 20 [2018-12-09 18:42:45,861 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 18:42:45,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-12-09 18:42:45,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-12-09 18:42:45,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2018-12-09 18:42:45,862 INFO L87 Difference]: Start difference. First operand 6364 states and 6885 transitions. Second operand 18 states. [2018-12-09 18:42:48,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:42:48,117 INFO L93 Difference]: Finished difference Result 13323 states and 14880 transitions. [2018-12-09 18:42:48,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-12-09 18:42:48,118 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 1044 [2018-12-09 18:42:48,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:42:48,133 INFO L225 Difference]: With dead ends: 13323 [2018-12-09 18:42:48,133 INFO L226 Difference]: Without dead ends: 7009 [2018-12-09 18:42:48,141 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2175 GetRequests, 2117 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 958 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=704, Invalid=2836, Unknown=0, NotChecked=0, Total=3540 [2018-12-09 18:42:48,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7009 states. [2018-12-09 18:42:48,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7009 to 6726. [2018-12-09 18:42:48,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6726 states. [2018-12-09 18:42:48,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6726 states to 6726 states and 7220 transitions. [2018-12-09 18:42:48,231 INFO L78 Accepts]: Start accepts. Automaton has 6726 states and 7220 transitions. Word has length 1044 [2018-12-09 18:42:48,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:42:48,232 INFO L480 AbstractCegarLoop]: Abstraction has 6726 states and 7220 transitions. [2018-12-09 18:42:48,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-12-09 18:42:48,232 INFO L276 IsEmpty]: Start isEmpty. Operand 6726 states and 7220 transitions. [2018-12-09 18:42:48,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1057 [2018-12-09 18:42:48,260 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:42:48,260 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 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, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:42:48,260 INFO L423 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:42:48,260 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:42:48,261 INFO L82 PathProgramCache]: Analyzing trace with hash 352437506, now seen corresponding path program 1 times [2018-12-09 18:42:48,261 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:42:48,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:42:48,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:42:48,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:42:48,261 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:42:48,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:42:49,204 INFO L134 CoverageAnalysis]: Checked inductivity of 3559 backedges. 1082 proven. 546 refuted. 0 times theorem prover too weak. 1931 trivial. 0 not checked. [2018-12-09 18:42:49,204 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:42:49,204 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 18:42:49,204 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1057 with the following transitions: [2018-12-09 18:42:49,204 INFO L205 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], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [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], [522], [523], [527], [531], [535], [539], [542], [543], [547], [550], [551], [555], [559], [562], [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], [919], [923], [926], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 18:42:49,206 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 18:42:49,206 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 18:42:53,226 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 18:42:53,226 INFO L272 AbstractInterpreter]: Visited 195 different actions 781 times. Merged at 12 different actions 34 times. Never widened. Performed 8602 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8602 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 16 fixpoints after 5 different actions. Largest state had 24 variables. [2018-12-09 18:42:53,228 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:42:53,228 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 18:42:53,228 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:42:53,228 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_07a39ad4-e4f4-45f8-99d9-96e731f774a9/bin-2019/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 18:42:53,235 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:42:53,235 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 18:42:53,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:42:53,342 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:42:53,663 INFO L134 CoverageAnalysis]: Checked inductivity of 3559 backedges. 953 proven. 2 refuted. 0 times theorem prover too weak. 2604 trivial. 0 not checked. [2018-12-09 18:42:53,663 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 18:42:54,343 INFO L134 CoverageAnalysis]: Checked inductivity of 3559 backedges. 953 proven. 2 refuted. 0 times theorem prover too weak. 2604 trivial. 0 not checked. [2018-12-09 18:42:54,359 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 18:42:54,359 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 5, 5] total 21 [2018-12-09 18:42:54,359 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 18:42:54,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-12-09 18:42:54,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-12-09 18:42:54,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2018-12-09 18:42:54,360 INFO L87 Difference]: Start difference. First operand 6726 states and 7220 transitions. Second operand 19 states. [2018-12-09 18:42:56,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:42:56,451 INFO L93 Difference]: Finished difference Result 13706 states and 15364 transitions. [2018-12-09 18:42:56,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-12-09 18:42:56,452 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 1056 [2018-12-09 18:42:56,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:42:56,463 INFO L225 Difference]: With dead ends: 13706 [2018-12-09 18:42:56,463 INFO L226 Difference]: Without dead ends: 6529 [2018-12-09 18:42:56,471 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2197 GetRequests, 2136 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1072 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=781, Invalid=3001, Unknown=0, NotChecked=0, Total=3782 [2018-12-09 18:42:56,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6529 states. [2018-12-09 18:42:56,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6529 to 6164. [2018-12-09 18:42:56,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6164 states. [2018-12-09 18:42:56,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6164 states to 6164 states and 6560 transitions. [2018-12-09 18:42:56,555 INFO L78 Accepts]: Start accepts. Automaton has 6164 states and 6560 transitions. Word has length 1056 [2018-12-09 18:42:56,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:42:56,555 INFO L480 AbstractCegarLoop]: Abstraction has 6164 states and 6560 transitions. [2018-12-09 18:42:56,556 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-12-09 18:42:56,556 INFO L276 IsEmpty]: Start isEmpty. Operand 6164 states and 6560 transitions. [2018-12-09 18:42:56,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1072 [2018-12-09 18:42:56,562 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:42:56,562 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 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, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:42:56,562 INFO L423 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:42:56,562 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:42:56,562 INFO L82 PathProgramCache]: Analyzing trace with hash 673816067, now seen corresponding path program 1 times [2018-12-09 18:42:56,562 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:42:56,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:42:56,563 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:42:56,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:42:56,563 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:42:56,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:42:57,546 INFO L134 CoverageAnalysis]: Checked inductivity of 3634 backedges. 1097 proven. 546 refuted. 0 times theorem prover too weak. 1991 trivial. 0 not checked. [2018-12-09 18:42:57,546 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:42:57,546 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 18:42:57,546 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1072 with the following transitions: [2018-12-09 18:42:57,546 INFO L205 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], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [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], [522], [523], [527], [531], [535], [539], [542], [543], [547], [550], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [622], [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], [919], [923], [926], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 18:42:57,548 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 18:42:57,548 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 18:43:01,646 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 18:43:01,646 INFO L272 AbstractInterpreter]: Visited 195 different actions 783 times. Merged at 11 different actions 36 times. Widened at 1 different actions 1 times. Performed 8747 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8747 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 16 fixpoints after 6 different actions. Largest state had 24 variables. [2018-12-09 18:43:01,647 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:43:01,647 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 18:43:01,647 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:43:01,647 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_07a39ad4-e4f4-45f8-99d9-96e731f774a9/bin-2019/utaipan/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 18:43:01,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:43:01,654 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 18:43:01,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:43:01,762 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:43:02,107 INFO L134 CoverageAnalysis]: Checked inductivity of 3634 backedges. 953 proven. 2 refuted. 0 times theorem prover too weak. 2679 trivial. 0 not checked. [2018-12-09 18:43:02,107 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 18:43:02,775 INFO L134 CoverageAnalysis]: Checked inductivity of 3634 backedges. 953 proven. 2 refuted. 0 times theorem prover too weak. 2679 trivial. 0 not checked. [2018-12-09 18:43:02,790 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 18:43:02,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5] total 17 [2018-12-09 18:43:02,791 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 18:43:02,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-09 18:43:02,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-09 18:43:02,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2018-12-09 18:43:02,791 INFO L87 Difference]: Start difference. First operand 6164 states and 6560 transitions. Second operand 15 states. [2018-12-09 18:43:05,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:43:05,067 INFO L93 Difference]: Finished difference Result 11980 states and 13012 transitions. [2018-12-09 18:43:05,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-12-09 18:43:05,067 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 1071 [2018-12-09 18:43:05,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:43:05,074 INFO L225 Difference]: With dead ends: 11980 [2018-12-09 18:43:05,074 INFO L226 Difference]: Without dead ends: 5807 [2018-12-09 18:43:05,080 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2220 GetRequests, 2163 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 914 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=690, Invalid=2616, Unknown=0, NotChecked=0, Total=3306 [2018-12-09 18:43:05,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5807 states. [2018-12-09 18:43:05,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5807 to 5600. [2018-12-09 18:43:05,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5600 states. [2018-12-09 18:43:05,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5600 states to 5600 states and 5921 transitions. [2018-12-09 18:43:05,154 INFO L78 Accepts]: Start accepts. Automaton has 5600 states and 5921 transitions. Word has length 1071 [2018-12-09 18:43:05,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:43:05,154 INFO L480 AbstractCegarLoop]: Abstraction has 5600 states and 5921 transitions. [2018-12-09 18:43:05,154 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-09 18:43:05,154 INFO L276 IsEmpty]: Start isEmpty. Operand 5600 states and 5921 transitions. [2018-12-09 18:43:05,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1089 [2018-12-09 18:43:05,161 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:43:05,161 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:43:05,161 INFO L423 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:43:05,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:43:05,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1935974590, now seen corresponding path program 1 times [2018-12-09 18:43:05,161 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:43:05,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:43:05,162 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:43:05,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:43:05,162 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:43:05,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:43:06,196 INFO L134 CoverageAnalysis]: Checked inductivity of 3701 backedges. 970 proven. 694 refuted. 0 times theorem prover too weak. 2037 trivial. 0 not checked. [2018-12-09 18:43:06,196 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:43:06,196 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 18:43:06,196 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1089 with the following transitions: [2018-12-09 18:43:06,197 INFO L205 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], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [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], [522], [523], [527], [531], [535], [539], [542], [543], [547], [550], [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], [690], [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], [926], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 18:43:06,198 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 18:43:06,198 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 18:43:10,129 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 18:43:10,130 INFO L272 AbstractInterpreter]: Visited 195 different actions 780 times. Merged at 11 different actions 33 times. Never widened. Performed 8678 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8678 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 16 fixpoints after 5 different actions. Largest state had 24 variables. [2018-12-09 18:43:10,131 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:43:10,131 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 18:43:10,131 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:43:10,131 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_07a39ad4-e4f4-45f8-99d9-96e731f774a9/bin-2019/utaipan/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 18:43:10,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:43:10,139 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 18:43:10,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:43:10,249 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:43:10,615 INFO L134 CoverageAnalysis]: Checked inductivity of 3701 backedges. 953 proven. 2 refuted. 0 times theorem prover too weak. 2746 trivial. 0 not checked. [2018-12-09 18:43:10,615 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 18:43:11,251 INFO L134 CoverageAnalysis]: Checked inductivity of 3701 backedges. 953 proven. 2 refuted. 0 times theorem prover too weak. 2746 trivial. 0 not checked. [2018-12-09 18:43:11,267 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 18:43:11,267 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-12-09 18:43:11,267 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 18:43:11,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-12-09 18:43:11,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-12-09 18:43:11,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2018-12-09 18:43:11,268 INFO L87 Difference]: Start difference. First operand 5600 states and 5921 transitions. Second operand 17 states. [2018-12-09 18:43:13,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:43:13,779 INFO L93 Difference]: Finished difference Result 11082 states and 11734 transitions. [2018-12-09 18:43:13,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-12-09 18:43:13,780 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 1088 [2018-12-09 18:43:13,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:43:13,786 INFO L225 Difference]: With dead ends: 11082 [2018-12-09 18:43:13,786 INFO L226 Difference]: Without dead ends: 5672 [2018-12-09 18:43:13,790 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2242 GetRequests, 2193 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 566 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=511, Invalid=1939, Unknown=0, NotChecked=0, Total=2450 [2018-12-09 18:43:13,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5672 states. [2018-12-09 18:43:13,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5672 to 5600. [2018-12-09 18:43:13,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5600 states. [2018-12-09 18:43:13,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5600 states to 5600 states and 5907 transitions. [2018-12-09 18:43:13,853 INFO L78 Accepts]: Start accepts. Automaton has 5600 states and 5907 transitions. Word has length 1088 [2018-12-09 18:43:13,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:43:13,854 INFO L480 AbstractCegarLoop]: Abstraction has 5600 states and 5907 transitions. [2018-12-09 18:43:13,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-12-09 18:43:13,854 INFO L276 IsEmpty]: Start isEmpty. Operand 5600 states and 5907 transitions. [2018-12-09 18:43:13,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1151 [2018-12-09 18:43:13,862 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:43:13,862 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 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, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:43:13,862 INFO L423 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:43:13,862 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:43:13,863 INFO L82 PathProgramCache]: Analyzing trace with hash 4779550, now seen corresponding path program 1 times [2018-12-09 18:43:13,863 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:43:13,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:43:13,863 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:43:13,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:43:13,863 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:43:13,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:43:14,361 INFO L134 CoverageAnalysis]: Checked inductivity of 3821 backedges. 1662 proven. 166 refuted. 0 times theorem prover too weak. 1993 trivial. 0 not checked. [2018-12-09 18:43:14,361 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:43:14,361 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 18:43:14,361 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1151 with the following transitions: [2018-12-09 18:43:14,361 INFO L205 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], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [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], [522], [523], [527], [531], [535], [539], [542], [543], [547], [550], [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], [919], [923], [926], [927], [931], [934], [935], [938], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 18:43:14,363 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 18:43:14,363 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 18:43:18,285 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 18:43:18,285 INFO L272 AbstractInterpreter]: Visited 196 different actions 788 times. Merged at 11 different actions 37 times. Widened at 1 different actions 1 times. Performed 8702 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8702 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 16 fixpoints after 6 different actions. Largest state had 24 variables. [2018-12-09 18:43:18,287 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:43:18,287 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 18:43:18,287 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:43:18,287 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_07a39ad4-e4f4-45f8-99d9-96e731f774a9/bin-2019/utaipan/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 18:43:18,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:43:18,293 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 18:43:18,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:43:18,408 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:43:18,792 INFO L134 CoverageAnalysis]: Checked inductivity of 3821 backedges. 2257 proven. 6 refuted. 0 times theorem prover too weak. 1558 trivial. 0 not checked. [2018-12-09 18:43:18,792 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 18:43:19,408 INFO L134 CoverageAnalysis]: Checked inductivity of 3821 backedges. 1662 proven. 339 refuted. 0 times theorem prover too weak. 1820 trivial. 0 not checked. [2018-12-09 18:43:19,423 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 18:43:19,423 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 15 [2018-12-09 18:43:19,423 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 18:43:19,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 18:43:19,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 18:43:19,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2018-12-09 18:43:19,424 INFO L87 Difference]: Start difference. First operand 5600 states and 5907 transitions. Second operand 9 states. [2018-12-09 18:43:20,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:43:20,347 INFO L93 Difference]: Finished difference Result 11942 states and 12615 transitions. [2018-12-09 18:43:20,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-09 18:43:20,348 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1150 [2018-12-09 18:43:20,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:43:20,355 INFO L225 Difference]: With dead ends: 11942 [2018-12-09 18:43:20,355 INFO L226 Difference]: Without dead ends: 6532 [2018-12-09 18:43:20,360 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2315 GetRequests, 2297 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2018-12-09 18:43:20,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6532 states. [2018-12-09 18:43:20,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6532 to 6154. [2018-12-09 18:43:20,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6154 states. [2018-12-09 18:43:20,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 6488 transitions. [2018-12-09 18:43:20,427 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 6488 transitions. Word has length 1150 [2018-12-09 18:43:20,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:43:20,427 INFO L480 AbstractCegarLoop]: Abstraction has 6154 states and 6488 transitions. [2018-12-09 18:43:20,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 18:43:20,427 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 6488 transitions. [2018-12-09 18:43:20,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1411 [2018-12-09 18:43:20,436 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:43:20,436 INFO L402 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:43:20,436 INFO L423 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:43:20,437 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:43:20,437 INFO L82 PathProgramCache]: Analyzing trace with hash 835499848, now seen corresponding path program 1 times [2018-12-09 18:43:20,437 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:43:20,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:43:20,437 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:43:20,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:43:20,437 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:43:20,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:43:21,826 INFO L134 CoverageAnalysis]: Checked inductivity of 5927 backedges. 1204 proven. 916 refuted. 0 times theorem prover too weak. 3807 trivial. 0 not checked. [2018-12-09 18:43:21,826 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:43:21,826 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 18:43:21,826 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1411 with the following transitions: [2018-12-09 18:43:21,826 INFO L205 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], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [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], [522], [523], [527], [531], [535], [539], [542], [543], [547], [550], [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], [690], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [778], [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], [926], [927], [931], [934], [935], [939], [943], [946], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 18:43:21,828 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 18:43:21,828 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 18:43:25,769 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 18:43:25,769 INFO L272 AbstractInterpreter]: Visited 200 different actions 806 times. Merged at 13 different actions 39 times. Widened at 1 different actions 1 times. Performed 8973 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8973 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 18 fixpoints after 8 different actions. Largest state had 24 variables. [2018-12-09 18:43:25,771 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:43:25,771 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 18:43:25,771 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:43:25,771 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_07a39ad4-e4f4-45f8-99d9-96e731f774a9/bin-2019/utaipan/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 18:43:25,777 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:43:25,777 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 18:43:25,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:43:25,917 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:43:26,444 INFO L134 CoverageAnalysis]: Checked inductivity of 5927 backedges. 1187 proven. 2 refuted. 0 times theorem prover too weak. 4738 trivial. 0 not checked. [2018-12-09 18:43:26,445 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 18:43:27,370 INFO L134 CoverageAnalysis]: Checked inductivity of 5927 backedges. 1187 proven. 2 refuted. 0 times theorem prover too weak. 4738 trivial. 0 not checked. [2018-12-09 18:43:27,386 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 18:43:27,386 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-12-09 18:43:27,386 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 18:43:27,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-12-09 18:43:27,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-12-09 18:43:27,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2018-12-09 18:43:27,387 INFO L87 Difference]: Start difference. First operand 6154 states and 6488 transitions. Second operand 17 states. [2018-12-09 18:43:29,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:43:29,925 INFO L93 Difference]: Finished difference Result 12140 states and 12809 transitions. [2018-12-09 18:43:29,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-12-09 18:43:29,926 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 1410 [2018-12-09 18:43:29,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:43:29,933 INFO L225 Difference]: With dead ends: 12140 [2018-12-09 18:43:29,933 INFO L226 Difference]: Without dead ends: 6176 [2018-12-09 18:43:29,938 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2887 GetRequests, 2838 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=476, Invalid=1974, Unknown=0, NotChecked=0, Total=2450 [2018-12-09 18:43:29,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6176 states. [2018-12-09 18:43:29,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6176 to 6152. [2018-12-09 18:43:29,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6152 states. [2018-12-09 18:43:30,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6152 states to 6152 states and 6474 transitions. [2018-12-09 18:43:30,003 INFO L78 Accepts]: Start accepts. Automaton has 6152 states and 6474 transitions. Word has length 1410 [2018-12-09 18:43:30,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:43:30,004 INFO L480 AbstractCegarLoop]: Abstraction has 6152 states and 6474 transitions. [2018-12-09 18:43:30,004 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-12-09 18:43:30,004 INFO L276 IsEmpty]: Start isEmpty. Operand 6152 states and 6474 transitions. [2018-12-09 18:43:30,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1881 [2018-12-09 18:43:30,019 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:43:30,019 INFO L402 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 8, 8, 8, 8, 8, 8, 7, 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, 4, 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] [2018-12-09 18:43:30,019 INFO L423 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:43:30,019 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:43:30,020 INFO L82 PathProgramCache]: Analyzing trace with hash -2139228247, now seen corresponding path program 1 times [2018-12-09 18:43:30,020 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:43:30,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:43:30,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:43:30,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:43:30,020 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:43:30,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:43:31,290 INFO L134 CoverageAnalysis]: Checked inductivity of 10285 backedges. 1926 proven. 533 refuted. 0 times theorem prover too weak. 7826 trivial. 0 not checked. [2018-12-09 18:43:31,291 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:43:31,291 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 18:43:31,291 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1881 with the following transitions: [2018-12-09 18:43:31,291 INFO L205 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], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [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], [522], [523], [527], [531], [535], [539], [542], [543], [547], [550], [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], [686], [687], [690], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [778], [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], [926], [927], [931], [934], [935], [938], [939], [943], [946], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 18:43:31,293 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 18:43:31,293 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 18:43:35,253 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 18:43:35,254 INFO L272 AbstractInterpreter]: Visited 202 different actions 811 times. Merged at 13 different actions 36 times. Never widened. Performed 9006 root evaluator evaluations with a maximum evaluation depth of 21. Performed 9006 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 20 fixpoints after 9 different actions. Largest state had 24 variables. [2018-12-09 18:43:35,255 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:43:35,255 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 18:43:35,255 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:43:35,255 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_07a39ad4-e4f4-45f8-99d9-96e731f774a9/bin-2019/utaipan/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 18:43:35,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:43:35,262 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 18:43:35,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:43:35,443 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:43:36,245 INFO L134 CoverageAnalysis]: Checked inductivity of 10285 backedges. 4359 proven. 2 refuted. 0 times theorem prover too weak. 5924 trivial. 0 not checked. [2018-12-09 18:43:36,245 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 18:43:37,263 INFO L134 CoverageAnalysis]: Checked inductivity of 10285 backedges. 1947 proven. 260 refuted. 0 times theorem prover too weak. 8078 trivial. 0 not checked. [2018-12-09 18:43:37,279 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 18:43:37,280 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 12 [2018-12-09 18:43:37,280 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 18:43:37,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 18:43:37,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 18:43:37,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-12-09 18:43:37,281 INFO L87 Difference]: Start difference. First operand 6152 states and 6474 transitions. Second operand 11 states. [2018-12-09 18:43:38,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:43:38,672 INFO L93 Difference]: Finished difference Result 12856 states and 13576 transitions. [2018-12-09 18:43:38,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-12-09 18:43:38,672 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1880 [2018-12-09 18:43:38,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:43:38,677 INFO L225 Difference]: With dead ends: 12856 [2018-12-09 18:43:38,677 INFO L226 Difference]: Without dead ends: 4264 [2018-12-09 18:43:38,682 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3800 GetRequests, 3768 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=253, Invalid=677, Unknown=0, NotChecked=0, Total=930 [2018-12-09 18:43:38,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4264 states. [2018-12-09 18:43:38,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4264 to 4076. [2018-12-09 18:43:38,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4076 states. [2018-12-09 18:43:38,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4076 states to 4076 states and 4195 transitions. [2018-12-09 18:43:38,722 INFO L78 Accepts]: Start accepts. Automaton has 4076 states and 4195 transitions. Word has length 1880 [2018-12-09 18:43:38,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:43:38,722 INFO L480 AbstractCegarLoop]: Abstraction has 4076 states and 4195 transitions. [2018-12-09 18:43:38,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 18:43:38,723 INFO L276 IsEmpty]: Start isEmpty. Operand 4076 states and 4195 transitions. [2018-12-09 18:43:38,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1956 [2018-12-09 18:43:38,737 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:43:38,738 INFO L402 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 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, 3, 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] [2018-12-09 18:43:38,738 INFO L423 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:43:38,738 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:43:38,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1730654995, now seen corresponding path program 1 times [2018-12-09 18:43:38,738 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:43:38,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:43:38,739 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:43:38,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:43:38,739 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:43:38,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:43:40,863 INFO L134 CoverageAnalysis]: Checked inductivity of 11670 backedges. 1608 proven. 1424 refuted. 0 times theorem prover too weak. 8638 trivial. 0 not checked. [2018-12-09 18:43:40,863 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:43:40,863 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 18:43:40,864 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1956 with the following transitions: [2018-12-09 18:43:40,864 INFO L205 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], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [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], [522], [523], [527], [531], [535], [539], [542], [543], [547], [550], [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], [670], [671], [675], [679], [683], [686], [687], [690], [691], [695], [699], [703], [707], [711], [715], [718], [719], [723], [726], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [778], [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], [926], [927], [931], [934], [935], [938], [939], [943], [946], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 18:43:40,865 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 18:43:40,865 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 18:43:44,801 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 18:43:44,801 INFO L272 AbstractInterpreter]: Visited 204 different actions 821 times. Merged at 12 different actions 38 times. Widened at 1 different actions 1 times. Performed 9190 root evaluator evaluations with a maximum evaluation depth of 21. Performed 9190 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 22 fixpoints after 13 different actions. Largest state had 24 variables. [2018-12-09 18:43:44,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:43:44,803 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 18:43:44,803 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:43:44,803 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_07a39ad4-e4f4-45f8-99d9-96e731f774a9/bin-2019/utaipan/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 18:43:44,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:43:44,809 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 18:43:45,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:43:45,013 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:45:45,044 WARN L180 SmtUtils]: Spent 1.53 m on a formula simplification. DAG size of input: 398 DAG size of output: 90 [2018-12-09 18:45:46,200 INFO L134 CoverageAnalysis]: Checked inductivity of 11670 backedges. 5141 proven. 144 refuted. 2 times theorem prover too weak. 6383 trivial. 0 not checked. [2018-12-09 18:45:46,201 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 18:45:47,116 INFO L134 CoverageAnalysis]: Checked inductivity of 11670 backedges. 507 proven. 0 refuted. 0 times theorem prover too weak. 11163 trivial. 0 not checked. [2018-12-09 18:45:47,132 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 18:45:47,132 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [16, 11] total 24 [2018-12-09 18:45:47,132 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 18:45:47,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 18:45:47,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 18:45:47,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=446, Unknown=12, NotChecked=0, Total=552 [2018-12-09 18:45:47,133 INFO L87 Difference]: Start difference. First operand 4076 states and 4195 transitions. Second operand 3 states. [2018-12-09 18:45:47,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:45:47,389 INFO L93 Difference]: Finished difference Result 7956 states and 8196 transitions. [2018-12-09 18:45:47,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 18:45:47,389 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1955 [2018-12-09 18:45:47,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:45:47,390 INFO L225 Difference]: With dead ends: 7956 [2018-12-09 18:45:47,390 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 18:45:47,395 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3927 GetRequests, 3901 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 120.1s TimeCoverageRelationStatistics Valid=94, Invalid=446, Unknown=12, NotChecked=0, Total=552 [2018-12-09 18:45:47,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 18:45:47,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 18:45:47,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 18:45:47,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 18:45:47,395 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1955 [2018-12-09 18:45:47,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:45:47,395 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 18:45:47,395 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 18:45:47,396 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 18:45:47,396 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 18:45:47,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 18:45:47,437 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 18:45:47,455 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 18:45:47,457 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 18:45:48,343 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 18:45:48,351 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 18:45:48,433 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 18:45:48,540 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 18:45:48,550 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 18:45:48,607 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 18:45:48,699 WARN L180 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 831 DAG size of output: 657 [2018-12-09 18:45:49,096 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 18:45:49,290 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 18:45:49,381 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 18:45:49,584 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 18:45:49,790 WARN L180 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 819 DAG size of output: 635 [2018-12-09 18:45:50,988 WARN L180 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 314 DAG size of output: 120 [2018-12-09 18:45:55,553 WARN L180 SmtUtils]: Spent 4.55 s on a formula simplification. DAG size of input: 661 DAG size of output: 108 [2018-12-09 18:46:02,301 WARN L180 SmtUtils]: Spent 6.74 s on a formula simplification. DAG size of input: 639 DAG size of output: 111 [2018-12-09 18:46:02,302 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 18:46:02,302 INFO L444 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)) [2018-12-09 18:46:02,302 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 18:46:02,303 INFO L448 ceAbstractionStarter]: For program point L432(lines 432 870) no Hoare annotation was computed. [2018-12-09 18:46:02,303 INFO L448 ceAbstractionStarter]: For program point L366(lines 366 870) no Hoare annotation was computed. [2018-12-09 18:46:02,303 INFO L448 ceAbstractionStarter]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,303 INFO L448 ceAbstractionStarter]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,303 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,303 INFO L448 ceAbstractionStarter]: For program point L235(lines 235 870) no Hoare annotation was computed. [2018-12-09 18:46:02,303 INFO L448 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-12-09 18:46:02,303 INFO L448 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-12-09 18:46:02,303 INFO L448 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-12-09 18:46:02,303 INFO L448 ceAbstractionStarter]: For program point L764(lines 764 870) no Hoare annotation was computed. [2018-12-09 18:46:02,303 INFO L448 ceAbstractionStarter]: For program point L632(lines 632 870) no Hoare annotation was computed. [2018-12-09 18:46:02,303 INFO L448 ceAbstractionStarter]: For program point L500(lines 500 870) no Hoare annotation was computed. [2018-12-09 18:46:02,303 INFO L448 ceAbstractionStarter]: For program point L831(lines 831 870) no Hoare annotation was computed. [2018-12-09 18:46:02,303 INFO L448 ceAbstractionStarter]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,303 INFO L448 ceAbstractionStarter]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,303 INFO L448 ceAbstractionStarter]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,303 INFO L448 ceAbstractionStarter]: For program point L700(lines 700 870) no Hoare annotation was computed. [2018-12-09 18:46:02,303 INFO L448 ceAbstractionStarter]: For program point L568(lines 568 870) no Hoare annotation was computed. [2018-12-09 18:46:02,303 INFO L448 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-12-09 18:46:02,303 INFO L448 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-12-09 18:46:02,303 INFO L448 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-12-09 18:46:02,304 INFO L448 ceAbstractionStarter]: For program point L305(lines 305 870) no Hoare annotation was computed. [2018-12-09 18:46:02,304 INFO L448 ceAbstractionStarter]: For program point L438(lines 438 870) no Hoare annotation was computed. [2018-12-09 18:46:02,304 INFO L448 ceAbstractionStarter]: For program point L372(lines 372 870) no Hoare annotation was computed. [2018-12-09 18:46:02,304 INFO L448 ceAbstractionStarter]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,304 INFO L448 ceAbstractionStarter]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,304 INFO L448 ceAbstractionStarter]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,304 INFO L448 ceAbstractionStarter]: For program point L241(lines 241 870) no Hoare annotation was computed. [2018-12-09 18:46:02,304 INFO L448 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-12-09 18:46:02,304 INFO L448 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-12-09 18:46:02,304 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-12-09 18:46:02,304 INFO L448 ceAbstractionStarter]: For program point L638(lines 638 870) no Hoare annotation was computed. [2018-12-09 18:46:02,304 INFO L448 ceAbstractionStarter]: For program point L506(lines 506 870) no Hoare annotation was computed. [2018-12-09 18:46:02,304 INFO L448 ceAbstractionStarter]: For program point L837(lines 837 870) no Hoare annotation was computed. [2018-12-09 18:46:02,304 INFO L448 ceAbstractionStarter]: For program point L771(lines 771 870) no Hoare annotation was computed. [2018-12-09 18:46:02,304 INFO L448 ceAbstractionStarter]: For program point L573(lines 573 870) no Hoare annotation was computed. [2018-12-09 18:46:02,304 INFO L448 ceAbstractionStarter]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,304 INFO L448 ceAbstractionStarter]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,304 INFO L448 ceAbstractionStarter]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,304 INFO L448 ceAbstractionStarter]: For program point L706(lines 706 870) no Hoare annotation was computed. [2018-12-09 18:46:02,304 INFO L448 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-12-09 18:46:02,304 INFO L448 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-12-09 18:46:02,304 INFO L448 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-12-09 18:46:02,304 INFO L448 ceAbstractionStarter]: For program point L311(lines 311 870) no Hoare annotation was computed. [2018-12-09 18:46:02,304 INFO L448 ceAbstractionStarter]: For program point L444(lines 444 870) no Hoare annotation was computed. [2018-12-09 18:46:02,305 INFO L448 ceAbstractionStarter]: For program point L378(lines 378 870) no Hoare annotation was computed. [2018-12-09 18:46:02,305 INFO L448 ceAbstractionStarter]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,305 INFO L448 ceAbstractionStarter]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,305 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,305 INFO L448 ceAbstractionStarter]: For program point L247(lines 247 870) no Hoare annotation was computed. [2018-12-09 18:46:02,305 INFO L448 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-12-09 18:46:02,305 INFO L448 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-12-09 18:46:02,305 INFO L448 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-12-09 18:46:02,305 INFO L448 ceAbstractionStarter]: For program point L842(lines 842 870) no Hoare annotation was computed. [2018-12-09 18:46:02,305 INFO L448 ceAbstractionStarter]: For program point L644(lines 644 870) no Hoare annotation was computed. [2018-12-09 18:46:02,305 INFO L448 ceAbstractionStarter]: For program point L512(lines 512 870) no Hoare annotation was computed. [2018-12-09 18:46:02,305 INFO L448 ceAbstractionStarter]: For program point L777(lines 777 870) no Hoare annotation was computed. [2018-12-09 18:46:02,305 INFO L448 ceAbstractionStarter]: For program point L579(lines 579 870) no Hoare annotation was computed. [2018-12-09 18:46:02,305 INFO L448 ceAbstractionStarter]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,305 INFO L448 ceAbstractionStarter]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,305 INFO L448 ceAbstractionStarter]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,305 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,305 INFO L448 ceAbstractionStarter]: For program point L712(lines 712 870) no Hoare annotation was computed. [2018-12-09 18:46:02,305 INFO L448 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-12-09 18:46:02,305 INFO L448 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-12-09 18:46:02,305 INFO L448 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-12-09 18:46:02,305 INFO L448 ceAbstractionStarter]: For program point L449(lines 449 870) no Hoare annotation was computed. [2018-12-09 18:46:02,305 INFO L448 ceAbstractionStarter]: For program point L317(lines 317 870) no Hoare annotation was computed. [2018-12-09 18:46:02,305 INFO L448 ceAbstractionStarter]: For program point L384(lines 384 870) no Hoare annotation was computed. [2018-12-09 18:46:02,306 INFO L448 ceAbstractionStarter]: For program point L252(lines 252 870) no Hoare annotation was computed. [2018-12-09 18:46:02,306 INFO L448 ceAbstractionStarter]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,306 INFO L448 ceAbstractionStarter]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,306 INFO L448 ceAbstractionStarter]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,306 INFO L448 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-12-09 18:46:02,306 INFO L448 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-12-09 18:46:02,306 INFO L448 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-12-09 18:46:02,306 INFO L448 ceAbstractionStarter]: For program point L848(lines 848 870) no Hoare annotation was computed. [2018-12-09 18:46:02,306 INFO L448 ceAbstractionStarter]: For program point L650(lines 650 870) no Hoare annotation was computed. [2018-12-09 18:46:02,306 INFO L448 ceAbstractionStarter]: For program point L518(lines 518 870) no Hoare annotation was computed. [2018-12-09 18:46:02,306 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 100) no Hoare annotation was computed. [2018-12-09 18:46:02,306 INFO L448 ceAbstractionStarter]: For program point L783(lines 783 870) no Hoare annotation was computed. [2018-12-09 18:46:02,306 INFO L448 ceAbstractionStarter]: For program point L585(lines 585 870) no Hoare annotation was computed. [2018-12-09 18:46:02,306 INFO L448 ceAbstractionStarter]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,306 INFO L448 ceAbstractionStarter]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,306 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,306 INFO L448 ceAbstractionStarter]: For program point L718(lines 718 870) no Hoare annotation was computed. [2018-12-09 18:46:02,306 INFO L448 ceAbstractionStarter]: For program point L454(lines 454 870) no Hoare annotation was computed. [2018-12-09 18:46:02,306 INFO L448 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-12-09 18:46:02,306 INFO L448 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-12-09 18:46:02,306 INFO L448 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-12-09 18:46:02,306 INFO L448 ceAbstractionStarter]: For program point L323(lines 323 870) no Hoare annotation was computed. [2018-12-09 18:46:02,307 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse29 (= 8 ~a15~0)) (.cse26 (= ~a24~0 1)) (.cse6 (= 8 |old(~a15~0)|)) (.cse8 (= ~a24~0 |old(~a24~0)|)) (.cse9 (= ~a12~0 |old(~a12~0)|)) (.cse10 (= ~a21~0 |old(~a21~0)|)) (.cse25 (= |old(~a15~0)| ~a15~0)) (.cse16 (= 1 ~a24~0)) (.cse12 (= 6 |old(~a21~0)|)) (.cse15 (= 6 |old(~a15~0)|))) (let ((.cse0 (not .cse15)) (.cse1 (not .cse12)) (.cse11 (= ~a15~0 |old(~a15~0)|)) (.cse24 (+ |old(~a12~0)| 49)) (.cse7 (< 6 |old(~a21~0)|)) (.cse20 (< 11 |old(~a12~0)|)) (.cse13 (< 7 |old(~a15~0)|)) (.cse17 (not (= 10 |old(~a21~0)|))) (.cse28 (= 10 ~a21~0)) (.cse3 (and .cse9 .cse10 .cse25 .cse16)) (.cse27 (not (= 8 |old(~a21~0)|))) (.cse23 (and .cse9 .cse8 .cse10 .cse25)) (.cse2 (< 76 |old(~a12~0)|)) (.cse21 (not .cse6)) (.cse18 (and .cse9 .cse10 .cse29 .cse26)) (.cse22 (= |calculate_output_#in~input| 0)) (.cse5 (<= (+ |old(~a12~0)| 43) 0)) (.cse19 (= 0 |old(~a21~0)|)) (.cse4 (not (= 1 |old(~a24~0)|))) (.cse14 (< 9 |old(~a21~0)|))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 (< |old(~a15~0)| 7) .cse4 .cse6 .cse7 .cse3) (or (and .cse8 .cse9 .cse10 .cse11) .cse12 .cse13 (and (or .cse4 .cse14) (or .cse4 .cse15))) (or .cse0 .cse1 .cse4 .cse3 (<= |old(~a12~0)| 80)) (or .cse12 .cse5 .cse4 .cse6 .cse14 .cse3) (or (and (and .cse9 .cse16) .cse10 .cse11) (or .cse17 .cse4 .cse15) .cse6) (or .cse4 (not (= 7 |old(~a15~0)|)) (and .cse9 .cse10 (= 7 ~a15~0) .cse16)) (or .cse5 .cse18 (or .cse19 .cse4 .cse20 .cse21 .cse22)) (or .cse23 (< 0 .cse24) .cse15 .cse7 .cse13) (or (and (= (+ ~a12~0 49) 0) (= |old(~a21~0)| ~a21~0) .cse25 .cse26) (or (or .cse21 .cse22 (not (= 7 |old(~a21~0)|)) (not (= 0 .cse24))) .cse4)) (or .cse5 .cse18 .cse19 .cse4 .cse21 .cse22 .cse7) (or .cse18 .cse5 .cse4 .cse21 (< 73282 |old(~a12~0)|) .cse22 .cse27) (or (and .cse9 .cse25 .cse16 .cse28) .cse17 .cse5 .cse4 .cse20 .cse13) (or (or .cse17 .cse22) (and .cse9 .cse29 .cse26 .cse28) .cse4 .cse21) (or .cse4 (< 0 (+ |old(~a12~0)| 526767)) .cse6 .cse3 .cse27) (or .cse23 .cse4 (not (= 5 |old(~a15~0)|))) (or .cse2 .cse21 .cse18 .cse22 .cse5 .cse19 .cse4 .cse14)))) [2018-12-09 18:46:02,307 INFO L448 ceAbstractionStarter]: For program point L390(lines 390 870) no Hoare annotation was computed. [2018-12-09 18:46:02,307 INFO L448 ceAbstractionStarter]: For program point L258(lines 258 870) no Hoare annotation was computed. [2018-12-09 18:46:02,307 INFO L448 ceAbstractionStarter]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,307 INFO L448 ceAbstractionStarter]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,307 INFO L448 ceAbstractionStarter]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,307 INFO L448 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-12-09 18:46:02,307 INFO L448 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-12-09 18:46:02,307 INFO L448 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-12-09 18:46:02,307 INFO L448 ceAbstractionStarter]: For program point L854(lines 854 870) no Hoare annotation was computed. [2018-12-09 18:46:02,307 INFO L448 ceAbstractionStarter]: For program point L656(lines 656 870) no Hoare annotation was computed. [2018-12-09 18:46:02,307 INFO L448 ceAbstractionStarter]: For program point L524(lines 524 870) no Hoare annotation was computed. [2018-12-09 18:46:02,307 INFO L448 ceAbstractionStarter]: For program point L789(lines 789 870) no Hoare annotation was computed. [2018-12-09 18:46:02,307 INFO L448 ceAbstractionStarter]: For program point L591(lines 591 870) no Hoare annotation was computed. [2018-12-09 18:46:02,307 INFO L448 ceAbstractionStarter]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,307 INFO L448 ceAbstractionStarter]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,307 INFO L448 ceAbstractionStarter]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,307 INFO L448 ceAbstractionStarter]: For program point L724(lines 724 870) no Hoare annotation was computed. [2018-12-09 18:46:02,307 INFO L448 ceAbstractionStarter]: For program point L460(lines 460 870) no Hoare annotation was computed. [2018-12-09 18:46:02,307 INFO L448 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-12-09 18:46:02,308 INFO L448 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-12-09 18:46:02,308 INFO L448 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-12-09 18:46:02,308 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 870) no Hoare annotation was computed. [2018-12-09 18:46:02,308 INFO L448 ceAbstractionStarter]: For program point L396(lines 396 870) no Hoare annotation was computed. [2018-12-09 18:46:02,308 INFO L448 ceAbstractionStarter]: For program point L264(lines 264 870) no Hoare annotation was computed. [2018-12-09 18:46:02,308 INFO L448 ceAbstractionStarter]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,308 INFO L448 ceAbstractionStarter]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,308 INFO L448 ceAbstractionStarter]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,308 INFO L448 ceAbstractionStarter]: For program point L859(lines 859 870) no Hoare annotation was computed. [2018-12-09 18:46:02,308 INFO L448 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-12-09 18:46:02,308 INFO L448 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-12-09 18:46:02,308 INFO L448 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-12-09 18:46:02,308 INFO L448 ceAbstractionStarter]: For program point L662(lines 662 870) no Hoare annotation was computed. [2018-12-09 18:46:02,308 INFO L448 ceAbstractionStarter]: For program point L530(lines 530 870) no Hoare annotation was computed. [2018-12-09 18:46:02,308 INFO L448 ceAbstractionStarter]: For program point L795(lines 795 870) no Hoare annotation was computed. [2018-12-09 18:46:02,308 INFO L448 ceAbstractionStarter]: For program point L597(lines 597 870) no Hoare annotation was computed. [2018-12-09 18:46:02,308 INFO L448 ceAbstractionStarter]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,308 INFO L448 ceAbstractionStarter]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,308 INFO L448 ceAbstractionStarter]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,308 INFO L448 ceAbstractionStarter]: For program point L730(lines 730 870) no Hoare annotation was computed. [2018-12-09 18:46:02,308 INFO L448 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-12-09 18:46:02,308 INFO L448 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-12-09 18:46:02,308 INFO L448 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-12-09 18:46:02,308 INFO L448 ceAbstractionStarter]: For program point L467(lines 467 870) no Hoare annotation was computed. [2018-12-09 18:46:02,308 INFO L448 ceAbstractionStarter]: For program point L335(lines 335 870) no Hoare annotation was computed. [2018-12-09 18:46:02,309 INFO L448 ceAbstractionStarter]: For program point L269(lines 269 870) no Hoare annotation was computed. [2018-12-09 18:46:02,309 INFO L448 ceAbstractionStarter]: For program point L402(lines 402 870) no Hoare annotation was computed. [2018-12-09 18:46:02,309 INFO L448 ceAbstractionStarter]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,309 INFO L448 ceAbstractionStarter]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,309 INFO L448 ceAbstractionStarter]: For program point L865(lines 865 870) no Hoare annotation was computed. [2018-12-09 18:46:02,309 INFO L448 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-12-09 18:46:02,309 INFO L448 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-12-09 18:46:02,309 INFO L448 ceAbstractionStarter]: For program point L668(lines 668 870) no Hoare annotation was computed. [2018-12-09 18:46:02,309 INFO L448 ceAbstractionStarter]: For program point L536(lines 536 870) no Hoare annotation was computed. [2018-12-09 18:46:02,309 INFO L448 ceAbstractionStarter]: For program point L801(lines 801 870) no Hoare annotation was computed. [2018-12-09 18:46:02,309 INFO L448 ceAbstractionStarter]: For program point L735(lines 735 870) no Hoare annotation was computed. [2018-12-09 18:46:02,309 INFO L448 ceAbstractionStarter]: For program point L603(lines 603 870) no Hoare annotation was computed. [2018-12-09 18:46:02,309 INFO L448 ceAbstractionStarter]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,309 INFO L448 ceAbstractionStarter]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,309 INFO L448 ceAbstractionStarter]: For program point L472(lines 472 870) no Hoare annotation was computed. [2018-12-09 18:46:02,309 INFO L448 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-12-09 18:46:02,309 INFO L448 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-12-09 18:46:02,309 INFO L448 ceAbstractionStarter]: For program point L341(lines 341 870) no Hoare annotation was computed. [2018-12-09 18:46:02,309 INFO L448 ceAbstractionStarter]: For program point L275(lines 275 870) no Hoare annotation was computed. [2018-12-09 18:46:02,309 INFO L448 ceAbstractionStarter]: For program point L408(lines 408 870) no Hoare annotation was computed. [2018-12-09 18:46:02,309 INFO L448 ceAbstractionStarter]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,309 INFO L448 ceAbstractionStarter]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,309 INFO L448 ceAbstractionStarter]: For program point L541(lines 541 870) no Hoare annotation was computed. [2018-12-09 18:46:02,309 INFO L448 ceAbstractionStarter]: For program point L211(lines 211 870) no Hoare annotation was computed. [2018-12-09 18:46:02,309 INFO L448 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-12-09 18:46:02,310 INFO L448 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-12-09 18:46:02,310 INFO L448 ceAbstractionStarter]: For program point L674(lines 674 870) no Hoare annotation was computed. [2018-12-09 18:46:02,310 INFO L448 ceAbstractionStarter]: For program point L807(lines 807 870) no Hoare annotation was computed. [2018-12-09 18:46:02,310 INFO L448 ceAbstractionStarter]: For program point L741(lines 741 870) no Hoare annotation was computed. [2018-12-09 18:46:02,310 INFO L448 ceAbstractionStarter]: For program point L609(lines 609 870) no Hoare annotation was computed. [2018-12-09 18:46:02,310 INFO L448 ceAbstractionStarter]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,310 INFO L448 ceAbstractionStarter]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,310 INFO L448 ceAbstractionStarter]: For program point L478(lines 478 870) no Hoare annotation was computed. [2018-12-09 18:46:02,310 INFO L448 ceAbstractionStarter]: For program point L280(lines 280 870) no Hoare annotation was computed. [2018-12-09 18:46:02,310 INFO L448 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-12-09 18:46:02,310 INFO L448 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-12-09 18:46:02,310 INFO L448 ceAbstractionStarter]: For program point L677(lines 677 870) no Hoare annotation was computed. [2018-12-09 18:46:02,310 INFO L448 ceAbstractionStarter]: For program point L347(lines 347 870) no Hoare annotation was computed. [2018-12-09 18:46:02,310 INFO L448 ceAbstractionStarter]: For program point L414(lines 414 870) no Hoare annotation was computed. [2018-12-09 18:46:02,310 INFO L448 ceAbstractionStarter]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,310 INFO L448 ceAbstractionStarter]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,310 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,310 INFO L448 ceAbstractionStarter]: For program point L547(lines 547 870) no Hoare annotation was computed. [2018-12-09 18:46:02,310 INFO L448 ceAbstractionStarter]: For program point L217(lines 217 870) no Hoare annotation was computed. [2018-12-09 18:46:02,310 INFO L448 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-12-09 18:46:02,310 INFO L448 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-12-09 18:46:02,310 INFO L448 ceAbstractionStarter]: For program point L747(lines 747 870) no Hoare annotation was computed. [2018-12-09 18:46:02,310 INFO L448 ceAbstractionStarter]: For program point L615(lines 615 870) no Hoare annotation was computed. [2018-12-09 18:46:02,310 INFO L448 ceAbstractionStarter]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,310 INFO L448 ceAbstractionStarter]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,311 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-12-09 18:46:02,311 INFO L448 ceAbstractionStarter]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,311 INFO L448 ceAbstractionStarter]: For program point L814(lines 814 870) no Hoare annotation was computed. [2018-12-09 18:46:02,311 INFO L448 ceAbstractionStarter]: For program point L484(lines 484 870) no Hoare annotation was computed. [2018-12-09 18:46:02,311 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 870) no Hoare annotation was computed. [2018-12-09 18:46:02,311 INFO L448 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-12-09 18:46:02,311 INFO L448 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-12-09 18:46:02,311 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-12-09 18:46:02,311 INFO L448 ceAbstractionStarter]: For program point L683(lines 683 870) no Hoare annotation was computed. [2018-12-09 18:46:02,311 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 870) no Hoare annotation was computed. [2018-12-09 18:46:02,311 INFO L448 ceAbstractionStarter]: For program point L552(lines 552 870) no Hoare annotation was computed. [2018-12-09 18:46:02,311 INFO L448 ceAbstractionStarter]: For program point L420(lines 420 870) no Hoare annotation was computed. [2018-12-09 18:46:02,311 INFO L448 ceAbstractionStarter]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,311 INFO L448 ceAbstractionStarter]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,311 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,311 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 870) no Hoare annotation was computed. [2018-12-09 18:46:02,311 INFO L448 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-12-09 18:46:02,311 INFO L448 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-12-09 18:46:02,311 INFO L448 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-12-09 18:46:02,311 INFO L448 ceAbstractionStarter]: For program point L752(lines 752 870) no Hoare annotation was computed. [2018-12-09 18:46:02,311 INFO L448 ceAbstractionStarter]: For program point L819(lines 819 870) no Hoare annotation was computed. [2018-12-09 18:46:02,311 INFO L448 ceAbstractionStarter]: For program point L621(lines 621 870) no Hoare annotation was computed. [2018-12-09 18:46:02,311 INFO L448 ceAbstractionStarter]: For program point L555(lines 555 870) no Hoare annotation was computed. [2018-12-09 18:46:02,311 INFO L448 ceAbstractionStarter]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,311 INFO L448 ceAbstractionStarter]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,312 INFO L448 ceAbstractionStarter]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,312 INFO L448 ceAbstractionStarter]: For program point L688(lines 688 870) no Hoare annotation was computed. [2018-12-09 18:46:02,312 INFO L448 ceAbstractionStarter]: For program point L490(lines 490 870) no Hoare annotation was computed. [2018-12-09 18:46:02,312 INFO L448 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-12-09 18:46:02,312 INFO L448 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-12-09 18:46:02,312 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-12-09 18:46:02,312 INFO L448 ceAbstractionStarter]: For program point L359(lines 359 870) no Hoare annotation was computed. [2018-12-09 18:46:02,312 INFO L448 ceAbstractionStarter]: For program point L293(lines 293 870) no Hoare annotation was computed. [2018-12-09 18:46:02,312 INFO L448 ceAbstractionStarter]: For program point L426(lines 426 870) no Hoare annotation was computed. [2018-12-09 18:46:02,312 INFO L448 ceAbstractionStarter]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,312 INFO L448 ceAbstractionStarter]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,312 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,312 INFO L448 ceAbstractionStarter]: For program point L229(lines 229 870) no Hoare annotation was computed. [2018-12-09 18:46:02,312 INFO L448 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-12-09 18:46:02,312 INFO L448 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-12-09 18:46:02,312 INFO L448 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-12-09 18:46:02,312 INFO L448 ceAbstractionStarter]: For program point L758(lines 758 870) no Hoare annotation was computed. [2018-12-09 18:46:02,312 INFO L448 ceAbstractionStarter]: For program point L626(lines 626 870) no Hoare annotation was computed. [2018-12-09 18:46:02,312 INFO L448 ceAbstractionStarter]: For program point L825(lines 825 870) no Hoare annotation was computed. [2018-12-09 18:46:02,312 INFO L448 ceAbstractionStarter]: For program point L561(lines 561 870) no Hoare annotation was computed. [2018-12-09 18:46:02,312 INFO L448 ceAbstractionStarter]: For program point L495(lines 495 870) no Hoare annotation was computed. [2018-12-09 18:46:02,312 INFO L448 ceAbstractionStarter]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,312 INFO L448 ceAbstractionStarter]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,312 INFO L448 ceAbstractionStarter]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 18:46:02,312 INFO L448 ceAbstractionStarter]: For program point L694(lines 694 870) no Hoare annotation was computed. [2018-12-09 18:46:02,312 INFO L448 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-12-09 18:46:02,313 INFO L448 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-12-09 18:46:02,313 INFO L448 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-12-09 18:46:02,313 INFO L448 ceAbstractionStarter]: For program point L299(lines 299 870) no Hoare annotation was computed. [2018-12-09 18:46:02,313 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 18:46:02,313 INFO L444 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)) [2018-12-09 18:46:02,313 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 18:46:02,313 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 18:46:02,313 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= 8 |old(~a15~0)|)) (and (= (+ ~a12~0 49) 0) (= |old(~a21~0)| ~a21~0) (= |old(~a15~0)| ~a15~0) (= ~a24~0 1)) (not (= 7 |old(~a21~0)|)) (not (= 1 |old(~a24~0)|)) (not (= 0 (+ |old(~a12~0)| 49)))) [2018-12-09 18:46:02,313 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2018-12-09 18:46:02,313 INFO L444 ceAbstractionStarter]: At program point L888(line 888) the Hoare annotation is: (let ((.cse0 (not (= main_~input~0 0))) (.cse22 (= ~a15~0 8)) (.cse2 (= ~a24~0 1))) (let ((.cse18 (= 1 ~a24~0)) (.cse20 (= ~a24~0 |old(~a24~0)|)) (.cse21 (not (= ~a15~0 9))) (.cse23 (not (= ~a15~0 6))) (.cse17 (and (not (= ~a21~0 0)) .cse0 .cse22 .cse2)) (.cse14 (<= ~a21~0 9))) (let ((.cse1 (+ ~a12~0 49)) (.cse6 (and .cse17 .cse14)) (.cse3 (= ~a21~0 10)) (.cse11 (<= ~a12~0 11)) (.cse7 (< 0 (+ ~a12~0 43))) (.cse10 (<= ~a15~0 7)) (.cse9 (and .cse21 .cse23)) (.cse15 (not (= 6 ~a21~0))) (.cse13 (<= ~a12~0 76)) (.cse16 (= ~a21~0 8)) (.cse4 (and .cse20 .cse23)) (.cse5 (not .cse22)) (.cse12 (and .cse21 .cse18 (or (not (= 6 |old(~a21~0)|)) (not (= 5 |old(~a15~0)|))))) (.cse8 (<= ~a21~0 6)) (.cse19 (= 6 ~a15~0))) (or (and .cse0 (= 8 ~a15~0) (= .cse1 0) .cse2 (= ~a21~0 7)) (and (and .cse3 .cse4) .cse5) (and .cse6 .cse7 .cse8) (not (= 8 |old(~a15~0)|)) (and (and .cse9 (<= .cse1 0)) .cse10 .cse8) (and (<= 7 ~a15~0) .cse4 .cse5 .cse8 .cse7) (and .cse10 (and .cse11 .cse12) (= 10 ~a21~0) .cse7) (and (and .cse13 .cse6) .cse7) (and (and .cse4 .cse14 .cse15) .cse5 .cse7) (not (= 7 |old(~a21~0)|)) (and (and .cse6 .cse16) (<= ~a12~0 73282) .cse7) (and .cse17 .cse3) (not (= 0 (+ |old(~a12~0)| 49))) (and .cse17 .cse11 .cse7) (and .cse10 (and (or (and .cse12 .cse14) (and .cse9 .cse18)) .cse15)) (and .cse13 .cse19 .cse20 .cse14) (and (and .cse16 .cse4) (<= (+ ~a12~0 526767) 0) .cse5) (and (and .cse12 .cse8) .cse19 (< 80 ~a12~0)) (not (= 1 |old(~a24~0)|)) (and (= 7 ~a15~0) .cse20) (and .cse18 (= 5 ~a15~0)))))) [2018-12-09 18:46:02,313 INFO L448 ceAbstractionStarter]: For program point L888-1(line 888) no Hoare annotation was computed. [2018-12-09 18:46:02,313 INFO L448 ceAbstractionStarter]: For program point L885(line 885) no Hoare annotation was computed. [2018-12-09 18:46:02,313 INFO L444 ceAbstractionStarter]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse18 (not (= 1 |old(~a24~0)|)))) (let ((.cse13 (= ~a24~0 1)) (.cse2 (= 1 ~a24~0)) (.cse20 (or (not (= 6 |old(~a21~0)|)) (not (= 5 |old(~a15~0)|)) .cse18)) (.cse19 (= ~a15~0 8)) (.cse16 (= ~a24~0 |old(~a24~0)|)) (.cse21 (not (= ~a15~0 9))) (.cse22 (not (= ~a15~0 6)))) (let ((.cse5 (+ ~a12~0 49)) (.cse6 (<= ~a15~0 7)) (.cse4 (and .cse21 .cse22)) (.cse12 (not (= 6 ~a21~0))) (.cse1 (= ~a21~0 8)) (.cse0 (and .cse16 .cse22)) (.cse8 (not .cse19)) (.cse10 (and .cse21 .cse2 .cse20)) (.cse15 (= 6 ~a15~0)) (.cse14 (<= ~a12~0 76)) (.cse11 (<= ~a21~0 9)) (.cse9 (<= ~a12~0 11)) (.cse17 (and (and (not (= ~a21~0 0)) .cse19 .cse13) .cse20)) (.cse7 (<= ~a21~0 6)) (.cse3 (< 0 (+ ~a12~0 43)))) (or (and (= ~a21~0 10) .cse0) (not (= 8 |old(~a15~0)|)) (and (<= ~a12~0 73282) .cse1 .cse2 .cse3) (and (and .cse4 (<= .cse5 0)) .cse6 .cse7) (and (<= 7 ~a15~0) .cse0 .cse8 .cse7 .cse3) (and (and .cse9 .cse10) (= 10 ~a21~0) .cse3) (and (and .cse0 .cse11 .cse12) .cse8 .cse3) (not (= 7 |old(~a21~0)|)) (and (= .cse5 0) (= 8 ~a15~0) .cse13 (= ~a21~0 7)) (not (= 0 (+ |old(~a12~0)| 49))) (and .cse6 (and (or (and .cse10 .cse11) (and .cse4 .cse2)) .cse12)) (and .cse14 .cse15 .cse16 .cse11) (and (and .cse1 .cse0) (<= (+ ~a12~0 526767) 0) .cse8) (and (and .cse10 .cse7) .cse15 (< 80 ~a12~0)) (and (and .cse14 (and .cse17 .cse11)) .cse3) (and (and .cse9 .cse17) .cse3) .cse18 (and (and .cse17 .cse7) .cse3) (and (= 7 ~a15~0) .cse16) (and .cse2 (= 5 ~a15~0)))))) [2018-12-09 18:46:02,314 INFO L448 ceAbstractionStarter]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2018-12-09 18:46:02,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:46:02 BoogieIcfgContainer [2018-12-09 18:46:02,322 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 18:46:02,322 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 18:46:02,322 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 18:46:02,322 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 18:46:02,323 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:41:14" (3/4) ... [2018-12-09 18:46:02,325 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 18:46:02,328 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 18:46:02,329 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-12-09 18:46:02,329 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 18:46:02,337 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-09 18:46:02,338 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 18:46:02,357 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((a21 == 10 && a24 == \old(a24) && !(a15 == 6)) || !(8 == \old(a15))) || (((a12 <= 73282 && a21 == 8) && 1 == a24) && 0 < a12 + 43)) || ((((!(a15 == 9) && !(a15 == 6)) && a12 + 49 <= 0) && a15 <= 7) && a21 <= 6)) || ((((7 <= a15 && a24 == \old(a24) && !(a15 == 6)) && !(a15 == 8)) && a21 <= 6) && 0 < a12 + 43)) || (((a12 <= 11 && (!(a15 == 9) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && 10 == a21) && 0 < a12 + 43)) || (((((a24 == \old(a24) && !(a15 == 6)) && a21 <= 9) && !(6 == a21)) && !(a15 == 8)) && 0 < a12 + 43)) || !(7 == \old(a21))) || (((a12 + 49 == 0 && 8 == a15) && a24 == 1) && a21 == 7)) || !(0 == \old(a12) + 49)) || (a15 <= 7 && ((((!(a15 == 9) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && a21 <= 9) || ((!(a15 == 9) && !(a15 == 6)) && 1 == a24)) && !(6 == a21))) || (((a12 <= 76 && 6 == a15) && a24 == \old(a24)) && a21 <= 9)) || (((a21 == 8 && a24 == \old(a24) && !(a15 == 6)) && a12 + 526767 <= 0) && !(a15 == 8))) || (((((!(a15 == 9) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && a21 <= 6) && 6 == a15) && 80 < a12)) || ((a12 <= 76 && (((!(a21 == 0) && a15 == 8) && a24 == 1) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && a21 <= 9) && 0 < a12 + 43)) || ((a12 <= 11 && ((!(a21 == 0) && a15 == 8) && a24 == 1) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && 0 < a12 + 43)) || !(1 == \old(a24))) || (((((!(a21 == 0) && a15 == 8) && a24 == 1) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && a21 <= 6) && 0 < a12 + 43)) || (7 == a15 && a24 == \old(a24))) || (1 == a24 && 5 == a15) [2018-12-09 18:46:02,416 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_07a39ad4-e4f4-45f8-99d9-96e731f774a9/bin-2019/utaipan/witness.graphml [2018-12-09 18:46:02,417 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 18:46:02,417 INFO L168 Benchmark]: Toolchain (without parser) took 288508.17 ms. Allocated memory was 1.0 GB in the beginning and 4.9 GB in the end (delta: 3.8 GB). Free memory was 947.0 MB in the beginning and 1.2 GB in the end (delta: -284.0 MB). Peak memory consumption was 3.6 GB. Max. memory is 11.5 GB. [2018-12-09 18:46:02,418 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:46:02,418 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -165.2 MB). Peak memory consumption was 39.1 MB. Max. memory is 11.5 GB. [2018-12-09 18:46:02,418 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:46:02,419 INFO L168 Benchmark]: Boogie Preprocessor took 42.80 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 18:46:02,419 INFO L168 Benchmark]: RCFGBuilder took 677.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 980.4 MB in the end (delta: 126.4 MB). Peak memory consumption was 126.4 MB. Max. memory is 11.5 GB. [2018-12-09 18:46:02,419 INFO L168 Benchmark]: TraceAbstraction took 287327.48 ms. Allocated memory was 1.2 GB in the beginning and 4.9 GB in the end (delta: 3.7 GB). Free memory was 980.4 MB in the beginning and 1.2 GB in the end (delta: -250.6 MB). Peak memory consumption was 4.2 GB. Max. memory is 11.5 GB. [2018-12-09 18:46:02,419 INFO L168 Benchmark]: Witness Printer took 94.61 ms. Allocated memory is still 4.9 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 4.3 kB). Peak memory consumption was 4.3 kB. Max. memory is 11.5 GB. [2018-12-09 18:46:02,421 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 342.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -165.2 MB). Peak memory consumption was 39.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.80 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 677.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 980.4 MB in the end (delta: 126.4 MB). Peak memory consumption was 126.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 287327.48 ms. Allocated memory was 1.2 GB in the beginning and 4.9 GB in the end (delta: 3.7 GB). Free memory was 980.4 MB in the beginning and 1.2 GB in the end (delta: -250.6 MB). Peak memory consumption was 4.2 GB. Max. memory is 11.5 GB. * Witness Printer took 94.61 ms. Allocated memory is still 4.9 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 4.3 kB). Peak memory consumption was 4.3 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 100]: 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: (((((((((((((((((((a21 == 10 && a24 == \old(a24) && !(a15 == 6)) || !(8 == \old(a15))) || (((a12 <= 73282 && a21 == 8) && 1 == a24) && 0 < a12 + 43)) || ((((!(a15 == 9) && !(a15 == 6)) && a12 + 49 <= 0) && a15 <= 7) && a21 <= 6)) || ((((7 <= a15 && a24 == \old(a24) && !(a15 == 6)) && !(a15 == 8)) && a21 <= 6) && 0 < a12 + 43)) || (((a12 <= 11 && (!(a15 == 9) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && 10 == a21) && 0 < a12 + 43)) || (((((a24 == \old(a24) && !(a15 == 6)) && a21 <= 9) && !(6 == a21)) && !(a15 == 8)) && 0 < a12 + 43)) || !(7 == \old(a21))) || (((a12 + 49 == 0 && 8 == a15) && a24 == 1) && a21 == 7)) || !(0 == \old(a12) + 49)) || (a15 <= 7 && ((((!(a15 == 9) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && a21 <= 9) || ((!(a15 == 9) && !(a15 == 6)) && 1 == a24)) && !(6 == a21))) || (((a12 <= 76 && 6 == a15) && a24 == \old(a24)) && a21 <= 9)) || (((a21 == 8 && a24 == \old(a24) && !(a15 == 6)) && a12 + 526767 <= 0) && !(a15 == 8))) || (((((!(a15 == 9) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && a21 <= 6) && 6 == a15) && 80 < a12)) || ((a12 <= 76 && (((!(a21 == 0) && a15 == 8) && a24 == 1) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && a21 <= 9) && 0 < a12 + 43)) || ((a12 <= 11 && ((!(a21 == 0) && a15 == 8) && a24 == 1) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && 0 < a12 + 43)) || !(1 == \old(a24))) || (((((!(a21 == 0) && a15 == 8) && a24 == 1) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && a21 <= 6) && 0 < a12 + 43)) || (7 == a15 && a24 == \old(a24))) || (1 == a24 && 5 == a15) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. SAFE Result, 287.2s OverallTime, 21 OverallIterations, 16 TraceHistogramMax, 55.9s AutomataDifference, 0.0s DeadEndRemovalTime, 14.9s HoareAnnotationTime, HoareTripleCheckerStatistics: 1212 SDtfs, 31768 SDslu, 2330 SDs, 0 SdLazy, 39585 SolverSat, 5417 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 39.1s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 32626 GetRequests, 31934 SyntacticMatches, 31 SemanticMatches, 661 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9479 ImplicationChecksByTransitivity, 131.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6726occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 63.7s AbstIntTime, 18 AbstIntIterations, 2 AbstIntStrong, 0.9971609047182339 AbsIntWeakeningRatio, 0.10211267605633803 AbsIntAvgWeakeningVarsNumRemoved, 15.725352112676056 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 21 MinimizatonAttempts, 4189 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 465 PreInvPairs, 597 NumberOfFragments, 1449 HoareAnnotationTreeSize, 465 FomulaSimplifications, 38507477 FormulaSimplificationTreeSizeReduction, 2.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 11948286 FormulaSimplificationTreeSizeReductionInter, 12.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.5s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 137.3s InterpolantComputationTime, 32017 NumberOfCodeBlocks, 32017 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 47552 ConstructedInterpolants, 12 QuantifiedInterpolants, 156081625 SizeOfPredicates, 37 NumberOfNonLiveVariables, 22011 ConjunctsInSsa, 133 ConjunctsInUnsatCore, 53 InterpolantComputations, 8 PerfectInterpolantSequences, 158221/168347 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...