./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.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 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7572e4be-37af-4275-b02c-f166d5b2bc35/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7572e4be-37af-4275-b02c-f166d5b2bc35/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7572e4be-37af-4275-b02c-f166d5b2bc35/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7572e4be-37af-4275-b02c-f166d5b2bc35/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_7572e4be-37af-4275-b02c-f166d5b2bc35/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7572e4be-37af-4275-b02c-f166d5b2bc35/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 0.1.23-5842f4b [2018-11-18 10:52:39,452 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:52:39,453 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:52:39,459 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:52:39,460 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:52:39,460 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:52:39,461 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:52:39,462 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:52:39,463 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:52:39,463 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:52:39,464 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:52:39,464 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:52:39,465 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:52:39,465 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:52:39,466 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:52:39,467 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:52:39,467 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:52:39,468 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:52:39,470 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:52:39,471 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:52:39,471 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:52:39,472 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:52:39,474 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:52:39,474 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:52:39,474 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:52:39,475 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:52:39,475 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:52:39,476 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:52:39,476 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:52:39,477 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:52:39,477 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:52:39,478 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:52:39,478 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:52:39,478 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:52:39,478 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:52:39,479 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:52:39,479 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7572e4be-37af-4275-b02c-f166d5b2bc35/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 10:52:39,489 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:52:39,489 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:52:39,490 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:52:39,490 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 10:52:39,490 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 10:52:39,490 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 10:52:39,490 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 10:52:39,490 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 10:52:39,490 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 10:52:39,491 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 10:52:39,491 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 10:52:39,491 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 10:52:39,491 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 10:52:39,491 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:52:39,491 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:52:39,492 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:52:39,492 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:52:39,492 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:52:39,492 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:52:39,492 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:52:39,492 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:52:39,492 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:52:39,493 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:52:39,493 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:52:39,493 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:52:39,493 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:52:39,493 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:52:39,493 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:52:39,493 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:52:39,493 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:52:39,493 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:52:39,494 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:52:39,494 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:52:39,494 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 10:52:39,494 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:52:39,494 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 10:52:39,494 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 10:52:39,494 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_7572e4be-37af-4275-b02c-f166d5b2bc35/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 [2018-11-18 10:52:39,515 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:52:39,523 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:52:39,525 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:52:39,525 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:52:39,526 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:52:39,526 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7572e4be-37af-4275-b02c-f166d5b2bc35/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label23_true-unreach-call_false-termination.c [2018-11-18 10:52:39,560 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7572e4be-37af-4275-b02c-f166d5b2bc35/bin-2019/utaipan/data/5ed7565d1/89aa57ec585c416a93879889ef4bfbd4/FLAG214c827e0 [2018-11-18 10:52:39,922 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:52:39,922 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7572e4be-37af-4275-b02c-f166d5b2bc35/sv-benchmarks/c/eca-rers2012/Problem14_label23_true-unreach-call_false-termination.c [2018-11-18 10:52:39,932 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7572e4be-37af-4275-b02c-f166d5b2bc35/bin-2019/utaipan/data/5ed7565d1/89aa57ec585c416a93879889ef4bfbd4/FLAG214c827e0 [2018-11-18 10:52:39,942 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7572e4be-37af-4275-b02c-f166d5b2bc35/bin-2019/utaipan/data/5ed7565d1/89aa57ec585c416a93879889ef4bfbd4 [2018-11-18 10:52:39,944 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:52:39,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 10:52:39,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:52:39,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:52:39,948 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:52:39,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:52:39" (1/1) ... [2018-11-18 10:52:39,950 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@788382f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:39, skipping insertion in model container [2018-11-18 10:52:39,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:52:39" (1/1) ... [2018-11-18 10:52:39,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:52:39,989 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:52:40,237 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:52:40,241 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:52:40,322 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:52:40,334 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:52:40,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:40 WrapperNode [2018-11-18 10:52:40,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:52:40,335 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 10:52:40,335 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 10:52:40,335 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 10:52:40,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:40" (1/1) ... [2018-11-18 10:52:40,404 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:40" (1/1) ... [2018-11-18 10:52:40,411 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 10:52:40,411 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:52:40,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:52:40,411 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:52:40,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:40" (1/1) ... [2018-11-18 10:52:40,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:40" (1/1) ... [2018-11-18 10:52:40,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:40" (1/1) ... [2018-11-18 10:52:40,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:40" (1/1) ... [2018-11-18 10:52:40,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:40" (1/1) ... [2018-11-18 10:52:40,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:40" (1/1) ... [2018-11-18 10:52:40,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:40" (1/1) ... [2018-11-18 10:52:40,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:52:40,465 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:52:40,465 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:52:40,465 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:52:40,466 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7572e4be-37af-4275-b02c-f166d5b2bc35/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:52:40,512 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 10:52:40,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:52:40,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:52:40,513 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-18 10:52:40,513 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-18 10:52:40,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:52:40,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:52:40,513 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:52:40,513 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:52:41,393 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:52:41,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:52:41 BoogieIcfgContainer [2018-11-18 10:52:41,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:52:41,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:52:41,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:52:41,396 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:52:41,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:52:39" (1/3) ... [2018-11-18 10:52:41,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@144d7d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:52:41, skipping insertion in model container [2018-11-18 10:52:41,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:40" (2/3) ... [2018-11-18 10:52:41,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@144d7d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:52:41, skipping insertion in model container [2018-11-18 10:52:41,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:52:41" (3/3) ... [2018-11-18 10:52:41,398 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label23_true-unreach-call_false-termination.c [2018-11-18 10:52:41,404 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:52:41,411 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 10:52:41,419 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 10:52:41,440 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:52:41,440 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:52:41,441 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:52:41,441 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:52:41,441 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:52:41,441 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:52:41,441 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:52:41,441 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:52:41,458 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-11-18 10:52:41,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-18 10:52:41,463 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:52:41,463 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:52:41,465 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:52:41,469 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:41,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1395557711, now seen corresponding path program 1 times [2018-11-18 10:52:41,470 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:52:41,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:41,499 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:52:41,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:41,499 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:52:41,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:41,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:52:41,659 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:52:41,660 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 10:52:41,660 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:52:41,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 10:52:41,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 10:52:41,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:52:41,673 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 3 states. [2018-11-18 10:52:42,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:52:42,568 INFO L93 Difference]: Finished difference Result 691 states and 1226 transitions. [2018-11-18 10:52:42,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 10:52:42,571 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2018-11-18 10:52:42,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:52:42,581 INFO L225 Difference]: With dead ends: 691 [2018-11-18 10:52:42,581 INFO L226 Difference]: Without dead ends: 434 [2018-11-18 10:52:42,586 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:52:42,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2018-11-18 10:52:42,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2018-11-18 10:52:42,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-11-18 10:52:42,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 765 transitions. [2018-11-18 10:52:42,635 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 765 transitions. Word has length 39 [2018-11-18 10:52:42,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:52:42,635 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 765 transitions. [2018-11-18 10:52:42,636 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 10:52:42,636 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 765 transitions. [2018-11-18 10:52:42,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-11-18 10:52:42,639 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:52:42,640 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:52:42,640 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:52:42,640 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:42,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1621257519, now seen corresponding path program 1 times [2018-11-18 10:52:42,641 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:52:42,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:42,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:52:42,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:42,642 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:52:42,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:42,770 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:52:42,771 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:52:42,771 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 10:52:42,771 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:52:42,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 10:52:42,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 10:52:42,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 10:52:42,773 INFO L87 Difference]: Start difference. First operand 434 states and 765 transitions. Second operand 6 states. [2018-11-18 10:52:43,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:52:43,440 INFO L93 Difference]: Finished difference Result 1062 states and 1897 transitions. [2018-11-18 10:52:43,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 10:52:43,441 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 114 [2018-11-18 10:52:43,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:52:43,445 INFO L225 Difference]: With dead ends: 1062 [2018-11-18 10:52:43,445 INFO L226 Difference]: Without dead ends: 634 [2018-11-18 10:52:43,446 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-18 10:52:43,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2018-11-18 10:52:43,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 625. [2018-11-18 10:52:43,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2018-11-18 10:52:43,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 1019 transitions. [2018-11-18 10:52:43,468 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 1019 transitions. Word has length 114 [2018-11-18 10:52:43,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:52:43,469 INFO L480 AbstractCegarLoop]: Abstraction has 625 states and 1019 transitions. [2018-11-18 10:52:43,469 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 10:52:43,469 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 1019 transitions. [2018-11-18 10:52:43,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-11-18 10:52:43,471 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:52:43,471 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:52:43,471 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:52:43,471 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:43,471 INFO L82 PathProgramCache]: Analyzing trace with hash -985362584, now seen corresponding path program 1 times [2018-11-18 10:52:43,472 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:52:43,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:43,472 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:52:43,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:43,473 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:52:43,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:43,641 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:52:43,641 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:52:43,641 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 10:52:43,641 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:52:43,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 10:52:43,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 10:52:43,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 10:52:43,642 INFO L87 Difference]: Start difference. First operand 625 states and 1019 transitions. Second operand 6 states. [2018-11-18 10:52:45,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:52:45,155 INFO L93 Difference]: Finished difference Result 1812 states and 2965 transitions. [2018-11-18 10:52:45,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 10:52:45,155 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 123 [2018-11-18 10:52:45,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:52:45,160 INFO L225 Difference]: With dead ends: 1812 [2018-11-18 10:52:45,160 INFO L226 Difference]: Without dead ends: 1193 [2018-11-18 10:52:45,163 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-18 10:52:45,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193 states. [2018-11-18 10:52:45,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193 to 1138. [2018-11-18 10:52:45,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1138 states. [2018-11-18 10:52:45,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1138 states to 1138 states and 1729 transitions. [2018-11-18 10:52:45,190 INFO L78 Accepts]: Start accepts. Automaton has 1138 states and 1729 transitions. Word has length 123 [2018-11-18 10:52:45,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:52:45,190 INFO L480 AbstractCegarLoop]: Abstraction has 1138 states and 1729 transitions. [2018-11-18 10:52:45,191 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 10:52:45,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1138 states and 1729 transitions. [2018-11-18 10:52:45,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-11-18 10:52:45,194 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:52:45,194 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:52:45,194 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:52:45,194 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:45,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1921964902, now seen corresponding path program 1 times [2018-11-18 10:52:45,195 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:52:45,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:45,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:52:45,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:45,195 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:52:45,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:45,556 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 146 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:52:45,556 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:52:45,556 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 10:52:45,557 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 209 with the following transitions: [2018-11-18 10:52:45,558 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [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], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 10:52:45,587 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 10:52:45,588 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 10:52:45,940 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 10:52:45,941 INFO L272 AbstractInterpreter]: Visited 94 different actions 180 times. Merged at 4 different actions 4 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. [2018-11-18 10:52:45,947 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:45,948 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 10:52:45,948 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:52:45,948 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7572e4be-37af-4275-b02c-f166d5b2bc35/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 10:52:45,962 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:52:45,962 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 10:52:46,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:46,022 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:52:46,231 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 96 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:52:46,231 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:52:46,574 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 69 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:52:46,589 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 10:52:46,589 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 20 [2018-11-18 10:52:46,589 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 10:52:46,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-18 10:52:46,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-18 10:52:46,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2018-11-18 10:52:46,590 INFO L87 Difference]: Start difference. First operand 1138 states and 1729 transitions. Second operand 15 states. [2018-11-18 10:52:48,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:52:48,653 INFO L93 Difference]: Finished difference Result 2691 states and 4175 transitions. [2018-11-18 10:52:48,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-18 10:52:48,653 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 208 [2018-11-18 10:52:48,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:52:48,657 INFO L225 Difference]: With dead ends: 2691 [2018-11-18 10:52:48,657 INFO L226 Difference]: Without dead ends: 1553 [2018-11-18 10:52:48,660 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 408 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=301, Invalid=821, Unknown=0, NotChecked=0, Total=1122 [2018-11-18 10:52:48,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2018-11-18 10:52:48,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 1331. [2018-11-18 10:52:48,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1331 states. [2018-11-18 10:52:48,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1331 states to 1331 states and 1843 transitions. [2018-11-18 10:52:48,685 INFO L78 Accepts]: Start accepts. Automaton has 1331 states and 1843 transitions. Word has length 208 [2018-11-18 10:52:48,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:52:48,685 INFO L480 AbstractCegarLoop]: Abstraction has 1331 states and 1843 transitions. [2018-11-18 10:52:48,686 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-18 10:52:48,686 INFO L276 IsEmpty]: Start isEmpty. Operand 1331 states and 1843 transitions. [2018-11-18 10:52:48,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2018-11-18 10:52:48,688 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:52:48,689 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 10:52:48,689 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:52:48,689 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:48,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1530501453, now seen corresponding path program 1 times [2018-11-18 10:52:48,689 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:52:48,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:48,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:52:48,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:48,690 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:52:48,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:48,881 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 113 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:52:48,881 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:52:48,881 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 10:52:48,881 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 234 with the following transitions: [2018-11-18 10:52:48,882 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [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], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 10:52:48,887 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 10:52:48,887 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 10:52:48,974 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 10:52:48,975 INFO L272 AbstractInterpreter]: Visited 115 different actions 115 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. [2018-11-18 10:52:48,976 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:48,976 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 10:52:49,210 INFO L227 lantSequenceWeakener]: Weakened 224 states. On average, predicates are now at 77.73% of their original sizes. [2018-11-18 10:52:49,210 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 10:52:49,243 INFO L415 sIntCurrentIteration]: We unified 232 AI predicates to 232 [2018-11-18 10:52:49,243 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 10:52:49,244 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 10:52:49,244 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2018-11-18 10:52:49,244 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:52:49,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 10:52:49,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 10:52:49,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 10:52:49,245 INFO L87 Difference]: Start difference. First operand 1331 states and 1843 transitions. Second operand 6 states. [2018-11-18 10:53:01,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:53:01,432 INFO L93 Difference]: Finished difference Result 2841 states and 3878 transitions. [2018-11-18 10:53:01,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 10:53:01,432 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 233 [2018-11-18 10:53:01,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:53:01,436 INFO L225 Difference]: With dead ends: 2841 [2018-11-18 10:53:01,436 INFO L226 Difference]: Without dead ends: 1516 [2018-11-18 10:53:01,438 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 233 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 10:53:01,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2018-11-18 10:53:01,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 1514. [2018-11-18 10:53:01,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1514 states. [2018-11-18 10:53:01,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 2028 transitions. [2018-11-18 10:53:01,455 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 2028 transitions. Word has length 233 [2018-11-18 10:53:01,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:53:01,455 INFO L480 AbstractCegarLoop]: Abstraction has 1514 states and 2028 transitions. [2018-11-18 10:53:01,455 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 10:53:01,455 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 2028 transitions. [2018-11-18 10:53:01,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2018-11-18 10:53:01,459 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:53:01,460 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2018-11-18 10:53:01,460 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:53:01,460 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:53:01,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1076420551, now seen corresponding path program 1 times [2018-11-18 10:53:01,460 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:53:01,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:53:01,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:53:01,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:53:01,461 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:53:01,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:53:01,643 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 265 proven. 2 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-11-18 10:53:01,643 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:53:01,643 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 10:53:01,644 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 345 with the following transitions: [2018-11-18 10:53:01,644 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [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], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 10:53:01,646 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 10:53:01,646 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 10:53:05,644 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 10:53:05,645 INFO L272 AbstractInterpreter]: Visited 120 different actions 353 times. Merged at 7 different actions 15 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. [2018-11-18 10:53:05,646 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:53:05,646 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 10:53:06,319 INFO L227 lantSequenceWeakener]: Weakened 341 states. On average, predicates are now at 80.26% of their original sizes. [2018-11-18 10:53:06,319 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 10:53:06,362 INFO L415 sIntCurrentIteration]: We unified 343 AI predicates to 343 [2018-11-18 10:53:06,362 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 10:53:06,362 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 10:53:06,362 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2018-11-18 10:53:06,362 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:53:06,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 10:53:06,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 10:53:06,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 10:53:06,363 INFO L87 Difference]: Start difference. First operand 1514 states and 2028 transitions. Second operand 9 states. [2018-11-18 10:53:20,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:53:20,305 INFO L93 Difference]: Finished difference Result 3303 states and 4527 transitions. [2018-11-18 10:53:20,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-18 10:53:20,306 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 344 [2018-11-18 10:53:20,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:53:20,311 INFO L225 Difference]: With dead ends: 3303 [2018-11-18 10:53:20,311 INFO L226 Difference]: Without dead ends: 1978 [2018-11-18 10:53:20,315 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 350 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2018-11-18 10:53:20,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2018-11-18 10:53:20,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 1962. [2018-11-18 10:53:20,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2018-11-18 10:53:20,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2566 transitions. [2018-11-18 10:53:20,353 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2566 transitions. Word has length 344 [2018-11-18 10:53:20,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:53:20,354 INFO L480 AbstractCegarLoop]: Abstraction has 1962 states and 2566 transitions. [2018-11-18 10:53:20,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 10:53:20,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2566 transitions. [2018-11-18 10:53:20,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2018-11-18 10:53:20,361 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:53:20,361 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 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] [2018-11-18 10:53:20,361 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:53:20,361 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:53:20,361 INFO L82 PathProgramCache]: Analyzing trace with hash -832627980, now seen corresponding path program 1 times [2018-11-18 10:53:20,362 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:53:20,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:53:20,362 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:53:20,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:53:20,363 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:53:20,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:53:20,572 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 279 proven. 69 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2018-11-18 10:53:20,572 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:53:20,573 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 10:53:20,573 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 415 with the following transitions: [2018-11-18 10:53:20,573 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [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], [494], [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], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 10:53:20,576 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 10:53:20,576 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 10:53:24,778 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 10:53:24,778 INFO L272 AbstractInterpreter]: Visited 122 different actions 486 times. Merged at 9 different actions 34 times. Widened at 1 different actions 1 times. Performed 4657 root evaluator evaluations with a maximum evaluation depth of 21. Performed 4657 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 7 fixpoints after 4 different actions. Largest state had 24 variables. [2018-11-18 10:53:24,780 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:53:24,780 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 10:53:24,780 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:53:24,780 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7572e4be-37af-4275-b02c-f166d5b2bc35/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 10:53:24,786 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:53:24,786 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 10:53:24,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:53:24,852 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:53:24,994 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 474 proven. 2 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2018-11-18 10:53:24,994 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:53:25,129 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 279 proven. 69 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2018-11-18 10:53:25,145 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 10:53:25,145 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2018-11-18 10:53:25,145 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 10:53:25,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 10:53:25,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 10:53:25,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-11-18 10:53:25,146 INFO L87 Difference]: Start difference. First operand 1962 states and 2566 transitions. Second operand 10 states. [2018-11-18 10:53:26,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:53:26,870 INFO L93 Difference]: Finished difference Result 7538 states and 10875 transitions. [2018-11-18 10:53:26,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-18 10:53:26,871 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 414 [2018-11-18 10:53:26,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:53:26,892 INFO L225 Difference]: With dead ends: 7538 [2018-11-18 10:53:26,892 INFO L226 Difference]: Without dead ends: 5950 [2018-11-18 10:53:26,905 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 868 GetRequests, 840 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=225, Invalid=531, Unknown=0, NotChecked=0, Total=756 [2018-11-18 10:53:26,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5950 states. [2018-11-18 10:53:27,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5950 to 5884. [2018-11-18 10:53:27,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5884 states. [2018-11-18 10:53:27,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5884 states to 5884 states and 7481 transitions. [2018-11-18 10:53:27,017 INFO L78 Accepts]: Start accepts. Automaton has 5884 states and 7481 transitions. Word has length 414 [2018-11-18 10:53:27,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:53:27,018 INFO L480 AbstractCegarLoop]: Abstraction has 5884 states and 7481 transitions. [2018-11-18 10:53:27,018 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 10:53:27,018 INFO L276 IsEmpty]: Start isEmpty. Operand 5884 states and 7481 transitions. [2018-11-18 10:53:27,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2018-11-18 10:53:27,026 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:53:27,026 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-11-18 10:53:27,027 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:53:27,027 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:53:27,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1614805097, now seen corresponding path program 1 times [2018-11-18 10:53:27,027 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:53:27,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:53:27,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:53:27,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:53:27,028 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:53:27,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:53:27,511 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 417 proven. 160 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-11-18 10:53:27,511 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:53:27,511 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 10:53:27,511 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 430 with the following transitions: [2018-11-18 10:53:27,512 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [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], [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], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 10:53:27,513 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 10:53:27,513 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 10:53:33,715 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 10:53:33,715 INFO L272 AbstractInterpreter]: Visited 122 different actions 486 times. Merged at 9 different actions 32 times. Never widened. Performed 4538 root evaluator evaluations with a maximum evaluation depth of 21. Performed 4538 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 9 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 10:53:33,721 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:53:33,721 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 10:53:33,721 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:53:33,721 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7572e4be-37af-4275-b02c-f166d5b2bc35/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 10:53:33,727 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:53:33,727 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 10:53:33,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:53:33,780 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:53:33,935 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 384 proven. 2 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2018-11-18 10:53:33,935 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:53:34,175 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 384 proven. 2 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2018-11-18 10:53:34,191 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 10:53:34,191 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5] total 14 [2018-11-18 10:53:34,191 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 10:53:34,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-18 10:53:34,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-18 10:53:34,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2018-11-18 10:53:34,192 INFO L87 Difference]: Start difference. First operand 5884 states and 7481 transitions. Second operand 13 states. [2018-11-18 10:53:35,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:53:35,560 INFO L93 Difference]: Finished difference Result 11928 states and 15722 transitions. [2018-11-18 10:53:35,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-18 10:53:35,561 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 429 [2018-11-18 10:53:35,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:53:35,585 INFO L225 Difference]: With dead ends: 11928 [2018-11-18 10:53:35,585 INFO L226 Difference]: Without dead ends: 6219 [2018-11-18 10:53:35,604 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 888 GetRequests, 864 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=144, Invalid=362, Unknown=0, NotChecked=0, Total=506 [2018-11-18 10:53:35,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6219 states. [2018-11-18 10:53:35,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6219 to 5486. [2018-11-18 10:53:35,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5486 states. [2018-11-18 10:53:35,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5486 states to 5486 states and 6802 transitions. [2018-11-18 10:53:35,716 INFO L78 Accepts]: Start accepts. Automaton has 5486 states and 6802 transitions. Word has length 429 [2018-11-18 10:53:35,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:53:35,717 INFO L480 AbstractCegarLoop]: Abstraction has 5486 states and 6802 transitions. [2018-11-18 10:53:35,717 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-18 10:53:35,717 INFO L276 IsEmpty]: Start isEmpty. Operand 5486 states and 6802 transitions. [2018-11-18 10:53:35,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2018-11-18 10:53:35,722 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:53:35,722 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-11-18 10:53:35,722 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:53:35,722 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:53:35,723 INFO L82 PathProgramCache]: Analyzing trace with hash 391100873, now seen corresponding path program 1 times [2018-11-18 10:53:35,723 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:53:35,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:53:35,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:53:35,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:53:35,724 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:53:35,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:53:36,265 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 443 proven. 160 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2018-11-18 10:53:36,265 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:53:36,265 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 10:53:36,265 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 478 with the following transitions: [2018-11-18 10:53:36,265 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [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], [746], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 10:53:36,267 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 10:53:36,268 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 10:53:40,229 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 10:53:40,229 INFO L272 AbstractInterpreter]: Visited 144 different actions 568 times. Merged at 9 different actions 28 times. Never widened. Performed 5800 root evaluator evaluations with a maximum evaluation depth of 21. Performed 5800 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 7 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 10:53:40,230 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:53:40,230 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 10:53:40,230 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:53:40,231 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7572e4be-37af-4275-b02c-f166d5b2bc35/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 10:53:40,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:53:40,236 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 10:53:40,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:53:40,305 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:53:40,460 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 384 proven. 2 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2018-11-18 10:53:40,460 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:53:40,808 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 384 proven. 2 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2018-11-18 10:53:40,824 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 10:53:40,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-11-18 10:53:40,824 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 10:53:40,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 10:53:40,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 10:53:40,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2018-11-18 10:53:40,825 INFO L87 Difference]: Start difference. First operand 5486 states and 6802 transitions. Second operand 17 states. [2018-11-18 10:53:44,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:53:44,073 INFO L93 Difference]: Finished difference Result 11308 states and 14794 transitions. [2018-11-18 10:53:44,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-11-18 10:53:44,073 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 477 [2018-11-18 10:53:44,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:53:44,091 INFO L225 Difference]: With dead ends: 11308 [2018-11-18 10:53:44,091 INFO L226 Difference]: Without dead ends: 5574 [2018-11-18 10:53:44,107 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1032 GetRequests, 971 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1095 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=793, Invalid=2989, Unknown=0, NotChecked=0, Total=3782 [2018-11-18 10:53:44,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5574 states. [2018-11-18 10:53:44,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5574 to 5054. [2018-11-18 10:53:44,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5054 states. [2018-11-18 10:53:44,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5054 states to 5054 states and 5923 transitions. [2018-11-18 10:53:44,195 INFO L78 Accepts]: Start accepts. Automaton has 5054 states and 5923 transitions. Word has length 477 [2018-11-18 10:53:44,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:53:44,195 INFO L480 AbstractCegarLoop]: Abstraction has 5054 states and 5923 transitions. [2018-11-18 10:53:44,195 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 10:53:44,196 INFO L276 IsEmpty]: Start isEmpty. Operand 5054 states and 5923 transitions. [2018-11-18 10:53:44,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 633 [2018-11-18 10:53:44,204 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:53:44,205 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:53:44,205 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:53:44,205 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:53:44,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1303086705, now seen corresponding path program 1 times [2018-11-18 10:53:44,205 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:53:44,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:53:44,206 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:53:44,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:53:44,206 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:53:44,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:53:44,601 INFO L134 CoverageAnalysis]: Checked inductivity of 1147 backedges. 511 proven. 80 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2018-11-18 10:53:44,602 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:53:44,602 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 10:53:44,602 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 633 with the following transitions: [2018-11-18 10:53:44,602 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [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], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 10:53:44,604 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 10:53:44,604 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 10:53:48,544 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 10:53:48,544 INFO L272 AbstractInterpreter]: Visited 191 different actions 762 times. Merged at 9 different actions 34 times. Widened at 1 different actions 1 times. Performed 8315 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8315 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 7 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 10:53:48,545 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:53:48,545 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 10:53:48,545 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:53:48,545 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7572e4be-37af-4275-b02c-f166d5b2bc35/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 10:53:48,552 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:53:48,552 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 10:53:48,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:53:48,628 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:53:48,742 INFO L134 CoverageAnalysis]: Checked inductivity of 1147 backedges. 787 proven. 2 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2018-11-18 10:53:48,742 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:53:48,959 INFO L134 CoverageAnalysis]: Checked inductivity of 1147 backedges. 511 proven. 80 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2018-11-18 10:53:48,974 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 10:53:48,974 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-11-18 10:53:48,975 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 10:53:48,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 10:53:48,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 10:53:48,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-18 10:53:48,976 INFO L87 Difference]: Start difference. First operand 5054 states and 5923 transitions. Second operand 7 states. [2018-11-18 10:53:50,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:53:50,086 INFO L93 Difference]: Finished difference Result 15012 states and 20636 transitions. [2018-11-18 10:53:50,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 10:53:50,087 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 632 [2018-11-18 10:53:50,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:53:50,141 INFO L225 Difference]: With dead ends: 15012 [2018-11-18 10:53:50,141 INFO L226 Difference]: Without dead ends: 10332 [2018-11-18 10:53:50,187 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1278 GetRequests, 1265 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2018-11-18 10:53:50,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10332 states. [2018-11-18 10:53:50,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10332 to 9734. [2018-11-18 10:53:50,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9734 states. [2018-11-18 10:53:50,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9734 states to 9734 states and 11490 transitions. [2018-11-18 10:53:50,398 INFO L78 Accepts]: Start accepts. Automaton has 9734 states and 11490 transitions. Word has length 632 [2018-11-18 10:53:50,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:53:50,398 INFO L480 AbstractCegarLoop]: Abstraction has 9734 states and 11490 transitions. [2018-11-18 10:53:50,398 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 10:53:50,398 INFO L276 IsEmpty]: Start isEmpty. Operand 9734 states and 11490 transitions. [2018-11-18 10:53:50,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 640 [2018-11-18 10:53:50,404 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:53:50,404 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2018-11-18 10:53:50,405 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:53:50,405 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:53:50,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1789937000, now seen corresponding path program 1 times [2018-11-18 10:53:50,405 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:53:50,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:53:50,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:53:50,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:53:50,406 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:53:50,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:53:50,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 518 proven. 80 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2018-11-18 10:53:50,668 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:53:50,668 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 10:53:50,668 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 640 with the following transitions: [2018-11-18 10:53:50,669 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [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], [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], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 10:53:50,671 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 10:53:50,671 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 10:53:54,586 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 10:53:54,586 INFO L272 AbstractInterpreter]: Visited 192 different actions 767 times. Merged at 10 different actions 35 times. Never widened. Performed 8434 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8434 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 9 fixpoints after 4 different actions. Largest state had 24 variables. [2018-11-18 10:53:54,590 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:53:54,590 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 10:53:54,590 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:53:54,590 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7572e4be-37af-4275-b02c-f166d5b2bc35/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 10:53:54,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:53:54,596 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 10:53:54,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:53:54,679 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:53:54,815 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 794 proven. 2 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2018-11-18 10:53:54,815 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:53:55,098 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 518 proven. 80 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2018-11-18 10:53:55,114 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 10:53:55,114 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-11-18 10:53:55,114 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 10:53:55,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 10:53:55,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 10:53:55,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-18 10:53:55,115 INFO L87 Difference]: Start difference. First operand 9734 states and 11490 transitions. Second operand 7 states. [2018-11-18 10:53:56,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:53:56,233 INFO L93 Difference]: Finished difference Result 24442 states and 33521 transitions. [2018-11-18 10:53:56,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 10:53:56,233 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 639 [2018-11-18 10:53:56,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:53:56,311 INFO L225 Difference]: With dead ends: 24442 [2018-11-18 10:53:56,311 INFO L226 Difference]: Without dead ends: 15082 [2018-11-18 10:53:56,364 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1293 GetRequests, 1280 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2018-11-18 10:53:56,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15082 states. [2018-11-18 10:53:56,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15082 to 14607. [2018-11-18 10:53:56,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14607 states. [2018-11-18 10:53:56,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14607 states to 14607 states and 17351 transitions. [2018-11-18 10:53:56,593 INFO L78 Accepts]: Start accepts. Automaton has 14607 states and 17351 transitions. Word has length 639 [2018-11-18 10:53:56,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:53:56,593 INFO L480 AbstractCegarLoop]: Abstraction has 14607 states and 17351 transitions. [2018-11-18 10:53:56,594 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 10:53:56,594 INFO L276 IsEmpty]: Start isEmpty. Operand 14607 states and 17351 transitions. [2018-11-18 10:53:56,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 685 [2018-11-18 10:53:56,603 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:53:56,603 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2018-11-18 10:53:56,603 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:53:56,603 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:53:56,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1588915609, now seen corresponding path program 1 times [2018-11-18 10:53:56,604 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:53:56,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:53:56,604 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:53:56,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:53:56,604 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:53:56,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:53:56,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2018-11-18 10:53:56,812 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:53:56,812 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 10:53:56,812 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:53:56,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 10:53:56,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 10:53:56,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:53:56,813 INFO L87 Difference]: Start difference. First operand 14607 states and 17351 transitions. Second operand 3 states. [2018-11-18 10:53:57,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:53:57,280 INFO L93 Difference]: Finished difference Result 29942 states and 36109 transitions. [2018-11-18 10:53:57,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 10:53:57,280 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 684 [2018-11-18 10:53:57,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:53:57,316 INFO L225 Difference]: With dead ends: 29942 [2018-11-18 10:53:57,316 INFO L226 Difference]: Without dead ends: 15709 [2018-11-18 10:53:57,363 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:53:57,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15709 states. [2018-11-18 10:53:57,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15709 to 15163. [2018-11-18 10:53:57,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15163 states. [2018-11-18 10:53:57,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15163 states to 15163 states and 17911 transitions. [2018-11-18 10:53:57,544 INFO L78 Accepts]: Start accepts. Automaton has 15163 states and 17911 transitions. Word has length 684 [2018-11-18 10:53:57,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:53:57,544 INFO L480 AbstractCegarLoop]: Abstraction has 15163 states and 17911 transitions. [2018-11-18 10:53:57,545 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 10:53:57,545 INFO L276 IsEmpty]: Start isEmpty. Operand 15163 states and 17911 transitions. [2018-11-18 10:53:57,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 697 [2018-11-18 10:53:57,550 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:53:57,550 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2018-11-18 10:53:57,550 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:53:57,550 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:53:57,550 INFO L82 PathProgramCache]: Analyzing trace with hash -139240641, now seen corresponding path program 1 times [2018-11-18 10:53:57,550 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:53:57,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:53:57,551 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:53:57,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:53:57,551 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:53:57,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:53:57,869 INFO L134 CoverageAnalysis]: Checked inductivity of 1247 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 1075 trivial. 0 not checked. [2018-11-18 10:53:57,869 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:53:57,869 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 10:53:57,869 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:53:57,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 10:53:57,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 10:53:57,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 10:53:57,870 INFO L87 Difference]: Start difference. First operand 15163 states and 17911 transitions. Second operand 4 states. [2018-11-18 10:53:58,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:53:58,608 INFO L93 Difference]: Finished difference Result 31557 states and 38202 transitions. [2018-11-18 10:53:58,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 10:53:58,609 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 696 [2018-11-18 10:53:58,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:53:58,609 INFO L225 Difference]: With dead ends: 31557 [2018-11-18 10:53:58,609 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 10:53:58,676 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 10:53:58,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 10:53:58,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 10:53:58,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 10:53:58,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 10:53:58,677 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 696 [2018-11-18 10:53:58,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:53:58,677 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 10:53:58,677 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 10:53:58,677 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 10:53:58,677 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 10:53:58,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 10:53:58,783 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:53:58,786 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:53:59,053 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:53:59,361 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:53:59,596 WARN L180 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 582 DAG size of output: 544 [2018-11-18 10:53:59,966 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:54:00,184 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:54:00,388 WARN L180 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 591 DAG size of output: 554 [2018-11-18 10:54:00,873 WARN L180 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 43 [2018-11-18 10:54:02,761 WARN L180 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 551 DAG size of output: 50 [2018-11-18 10:54:04,773 WARN L180 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 560 DAG size of output: 50 [2018-11-18 10:54:04,774 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 10:54:04,775 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= |old(~a15~0)| ~a15~0)) [2018-11-18 10:54:04,775 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:54:04,775 INFO L425 ceAbstractionStarter]: For program point L432(lines 432 870) no Hoare annotation was computed. [2018-11-18 10:54:04,775 INFO L425 ceAbstractionStarter]: For program point L366(lines 366 870) no Hoare annotation was computed. [2018-11-18 10:54:04,775 INFO L425 ceAbstractionStarter]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,775 INFO L425 ceAbstractionStarter]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,775 INFO L425 ceAbstractionStarter]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,775 INFO L425 ceAbstractionStarter]: For program point L235(lines 235 870) no Hoare annotation was computed. [2018-11-18 10:54:04,775 INFO L425 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-11-18 10:54:04,775 INFO L425 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-11-18 10:54:04,775 INFO L425 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-11-18 10:54:04,775 INFO L425 ceAbstractionStarter]: For program point L764(lines 764 870) no Hoare annotation was computed. [2018-11-18 10:54:04,775 INFO L425 ceAbstractionStarter]: For program point L632(lines 632 870) no Hoare annotation was computed. [2018-11-18 10:54:04,775 INFO L425 ceAbstractionStarter]: For program point L500(lines 500 870) no Hoare annotation was computed. [2018-11-18 10:54:04,775 INFO L425 ceAbstractionStarter]: For program point L831(lines 831 870) no Hoare annotation was computed. [2018-11-18 10:54:04,775 INFO L425 ceAbstractionStarter]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,775 INFO L425 ceAbstractionStarter]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,775 INFO L425 ceAbstractionStarter]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,775 INFO L425 ceAbstractionStarter]: For program point L700(lines 700 870) no Hoare annotation was computed. [2018-11-18 10:54:04,775 INFO L425 ceAbstractionStarter]: For program point L568(lines 568 870) no Hoare annotation was computed. [2018-11-18 10:54:04,775 INFO L425 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-11-18 10:54:04,775 INFO L425 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-11-18 10:54:04,776 INFO L425 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-11-18 10:54:04,776 INFO L425 ceAbstractionStarter]: For program point L305(lines 305 870) no Hoare annotation was computed. [2018-11-18 10:54:04,776 INFO L425 ceAbstractionStarter]: For program point L438(lines 438 870) no Hoare annotation was computed. [2018-11-18 10:54:04,776 INFO L425 ceAbstractionStarter]: For program point L372(lines 372 870) no Hoare annotation was computed. [2018-11-18 10:54:04,776 INFO L425 ceAbstractionStarter]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,776 INFO L425 ceAbstractionStarter]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,776 INFO L425 ceAbstractionStarter]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,776 INFO L425 ceAbstractionStarter]: For program point L241(lines 241 870) no Hoare annotation was computed. [2018-11-18 10:54:04,776 INFO L425 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-11-18 10:54:04,776 INFO L425 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-11-18 10:54:04,776 INFO L425 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-18 10:54:04,776 INFO L425 ceAbstractionStarter]: For program point L638(lines 638 870) no Hoare annotation was computed. [2018-11-18 10:54:04,776 INFO L425 ceAbstractionStarter]: For program point L506(lines 506 870) no Hoare annotation was computed. [2018-11-18 10:54:04,776 INFO L425 ceAbstractionStarter]: For program point L837(lines 837 870) no Hoare annotation was computed. [2018-11-18 10:54:04,776 INFO L425 ceAbstractionStarter]: For program point L771(lines 771 870) no Hoare annotation was computed. [2018-11-18 10:54:04,776 INFO L425 ceAbstractionStarter]: For program point L573(lines 573 870) no Hoare annotation was computed. [2018-11-18 10:54:04,776 INFO L425 ceAbstractionStarter]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,776 INFO L425 ceAbstractionStarter]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,776 INFO L425 ceAbstractionStarter]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,776 INFO L425 ceAbstractionStarter]: For program point L706(lines 706 870) no Hoare annotation was computed. [2018-11-18 10:54:04,776 INFO L425 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-11-18 10:54:04,776 INFO L425 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-11-18 10:54:04,776 INFO L425 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-11-18 10:54:04,776 INFO L425 ceAbstractionStarter]: For program point L311(lines 311 870) no Hoare annotation was computed. [2018-11-18 10:54:04,776 INFO L425 ceAbstractionStarter]: For program point L444(lines 444 870) no Hoare annotation was computed. [2018-11-18 10:54:04,777 INFO L425 ceAbstractionStarter]: For program point L378(lines 378 870) no Hoare annotation was computed. [2018-11-18 10:54:04,777 INFO L425 ceAbstractionStarter]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,777 INFO L425 ceAbstractionStarter]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,777 INFO L425 ceAbstractionStarter]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,777 INFO L425 ceAbstractionStarter]: For program point L247(lines 247 870) no Hoare annotation was computed. [2018-11-18 10:54:04,777 INFO L425 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-11-18 10:54:04,777 INFO L425 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-11-18 10:54:04,777 INFO L425 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-18 10:54:04,777 INFO L425 ceAbstractionStarter]: For program point L842(lines 842 870) no Hoare annotation was computed. [2018-11-18 10:54:04,777 INFO L425 ceAbstractionStarter]: For program point L644(lines 644 870) no Hoare annotation was computed. [2018-11-18 10:54:04,777 INFO L425 ceAbstractionStarter]: For program point L512(lines 512 870) no Hoare annotation was computed. [2018-11-18 10:54:04,777 INFO L425 ceAbstractionStarter]: For program point L777(lines 777 870) no Hoare annotation was computed. [2018-11-18 10:54:04,777 INFO L425 ceAbstractionStarter]: For program point L579(lines 579 870) no Hoare annotation was computed. [2018-11-18 10:54:04,777 INFO L425 ceAbstractionStarter]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,777 INFO L425 ceAbstractionStarter]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,777 INFO L425 ceAbstractionStarter]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,777 INFO L425 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,777 INFO L425 ceAbstractionStarter]: For program point L712(lines 712 870) no Hoare annotation was computed. [2018-11-18 10:54:04,777 INFO L425 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-11-18 10:54:04,777 INFO L425 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-11-18 10:54:04,777 INFO L425 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-18 10:54:04,777 INFO L425 ceAbstractionStarter]: For program point L449(lines 449 870) no Hoare annotation was computed. [2018-11-18 10:54:04,777 INFO L425 ceAbstractionStarter]: For program point L317(lines 317 870) no Hoare annotation was computed. [2018-11-18 10:54:04,777 INFO L425 ceAbstractionStarter]: For program point L384(lines 384 870) no Hoare annotation was computed. [2018-11-18 10:54:04,777 INFO L425 ceAbstractionStarter]: For program point L252(lines 252 870) no Hoare annotation was computed. [2018-11-18 10:54:04,778 INFO L425 ceAbstractionStarter]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,778 INFO L425 ceAbstractionStarter]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,778 INFO L425 ceAbstractionStarter]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,778 INFO L425 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-11-18 10:54:04,778 INFO L425 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-11-18 10:54:04,778 INFO L425 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-11-18 10:54:04,778 INFO L425 ceAbstractionStarter]: For program point L848(lines 848 870) no Hoare annotation was computed. [2018-11-18 10:54:04,778 INFO L425 ceAbstractionStarter]: For program point L650(lines 650 870) no Hoare annotation was computed. [2018-11-18 10:54:04,778 INFO L425 ceAbstractionStarter]: For program point L518(lines 518 870) no Hoare annotation was computed. [2018-11-18 10:54:04,778 INFO L425 ceAbstractionStarter]: For program point L783(lines 783 870) no Hoare annotation was computed. [2018-11-18 10:54:04,778 INFO L425 ceAbstractionStarter]: For program point L585(lines 585 870) no Hoare annotation was computed. [2018-11-18 10:54:04,778 INFO L425 ceAbstractionStarter]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,778 INFO L425 ceAbstractionStarter]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,778 INFO L425 ceAbstractionStarter]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,778 INFO L425 ceAbstractionStarter]: For program point L718(lines 718 870) no Hoare annotation was computed. [2018-11-18 10:54:04,778 INFO L425 ceAbstractionStarter]: For program point L454(lines 454 870) no Hoare annotation was computed. [2018-11-18 10:54:04,778 INFO L425 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-11-18 10:54:04,778 INFO L425 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-11-18 10:54:04,778 INFO L425 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-11-18 10:54:04,778 INFO L425 ceAbstractionStarter]: For program point L323(lines 323 870) no Hoare annotation was computed. [2018-11-18 10:54:04,782 INFO L421 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse3 (= ~a12~0 |old(~a12~0)|)) (.cse4 (= ~a24~0 |old(~a24~0)|)) (.cse5 (= |old(~a15~0)| ~a15~0))) (let ((.cse2 (= 9 |old(~a15~0)|)) (.cse0 (= 9 |old(~a21~0)|)) (.cse7 (= 6 |old(~a15~0)|)) (.cse6 (and .cse3 .cse4 (= ~a21~0 |old(~a21~0)|) .cse5)) (.cse1 (not (= 1 |old(~a24~0)|))) (.cse8 (< (+ |old(~a12~0)| 42) 0))) (and (or (not .cse0) .cse1 .cse2 (and .cse3 .cse4 (= ~a21~0 9) .cse5)) (or .cse6 .cse7 .cse2 (< 7 |old(~a21~0)|)) (or .cse6 .cse1 .cse8 (= 10 |old(~a21~0)|)) (or .cse0 .cse1 .cse7 .cse6) (or .cse6 .cse1 (< 11 |old(~a12~0)|) .cse8)))) [2018-11-18 10:54:04,782 INFO L425 ceAbstractionStarter]: For program point L390(lines 390 870) no Hoare annotation was computed. [2018-11-18 10:54:04,782 INFO L425 ceAbstractionStarter]: For program point L258(lines 258 870) no Hoare annotation was computed. [2018-11-18 10:54:04,782 INFO L425 ceAbstractionStarter]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,782 INFO L425 ceAbstractionStarter]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,782 INFO L425 ceAbstractionStarter]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,782 INFO L425 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-11-18 10:54:04,782 INFO L425 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-11-18 10:54:04,783 INFO L425 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-11-18 10:54:04,783 INFO L425 ceAbstractionStarter]: For program point L854(lines 854 870) no Hoare annotation was computed. [2018-11-18 10:54:04,783 INFO L425 ceAbstractionStarter]: For program point L656(lines 656 870) no Hoare annotation was computed. [2018-11-18 10:54:04,783 INFO L425 ceAbstractionStarter]: For program point L524(lines 524 870) no Hoare annotation was computed. [2018-11-18 10:54:04,783 INFO L425 ceAbstractionStarter]: For program point L789(lines 789 870) no Hoare annotation was computed. [2018-11-18 10:54:04,783 INFO L425 ceAbstractionStarter]: For program point L591(lines 591 870) no Hoare annotation was computed. [2018-11-18 10:54:04,783 INFO L425 ceAbstractionStarter]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,783 INFO L425 ceAbstractionStarter]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,783 INFO L425 ceAbstractionStarter]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,783 INFO L425 ceAbstractionStarter]: For program point L724(lines 724 870) no Hoare annotation was computed. [2018-11-18 10:54:04,783 INFO L425 ceAbstractionStarter]: For program point L460(lines 460 870) no Hoare annotation was computed. [2018-11-18 10:54:04,783 INFO L425 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-11-18 10:54:04,783 INFO L425 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-11-18 10:54:04,783 INFO L425 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-11-18 10:54:04,783 INFO L425 ceAbstractionStarter]: For program point L329(lines 329 870) no Hoare annotation was computed. [2018-11-18 10:54:04,783 INFO L425 ceAbstractionStarter]: For program point L396(lines 396 870) no Hoare annotation was computed. [2018-11-18 10:54:04,783 INFO L425 ceAbstractionStarter]: For program point L264(lines 264 870) no Hoare annotation was computed. [2018-11-18 10:54:04,784 INFO L425 ceAbstractionStarter]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,784 INFO L425 ceAbstractionStarter]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,784 INFO L425 ceAbstractionStarter]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,784 INFO L425 ceAbstractionStarter]: For program point L859(lines 859 870) no Hoare annotation was computed. [2018-11-18 10:54:04,784 INFO L425 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 100) no Hoare annotation was computed. [2018-11-18 10:54:04,784 INFO L425 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-11-18 10:54:04,784 INFO L425 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-11-18 10:54:04,784 INFO L425 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-11-18 10:54:04,784 INFO L425 ceAbstractionStarter]: For program point L662(lines 662 870) no Hoare annotation was computed. [2018-11-18 10:54:04,784 INFO L425 ceAbstractionStarter]: For program point L530(lines 530 870) no Hoare annotation was computed. [2018-11-18 10:54:04,784 INFO L425 ceAbstractionStarter]: For program point L795(lines 795 870) no Hoare annotation was computed. [2018-11-18 10:54:04,784 INFO L425 ceAbstractionStarter]: For program point L597(lines 597 870) no Hoare annotation was computed. [2018-11-18 10:54:04,784 INFO L425 ceAbstractionStarter]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,784 INFO L425 ceAbstractionStarter]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,784 INFO L425 ceAbstractionStarter]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,785 INFO L425 ceAbstractionStarter]: For program point L730(lines 730 870) no Hoare annotation was computed. [2018-11-18 10:54:04,785 INFO L425 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-11-18 10:54:04,785 INFO L425 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-11-18 10:54:04,785 INFO L425 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-11-18 10:54:04,785 INFO L425 ceAbstractionStarter]: For program point L467(lines 467 870) no Hoare annotation was computed. [2018-11-18 10:54:04,785 INFO L425 ceAbstractionStarter]: For program point L335(lines 335 870) no Hoare annotation was computed. [2018-11-18 10:54:04,785 INFO L425 ceAbstractionStarter]: For program point L269(lines 269 870) no Hoare annotation was computed. [2018-11-18 10:54:04,785 INFO L425 ceAbstractionStarter]: For program point L402(lines 402 870) no Hoare annotation was computed. [2018-11-18 10:54:04,785 INFO L425 ceAbstractionStarter]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,785 INFO L425 ceAbstractionStarter]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,785 INFO L425 ceAbstractionStarter]: For program point L865(lines 865 870) no Hoare annotation was computed. [2018-11-18 10:54:04,785 INFO L425 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-11-18 10:54:04,785 INFO L425 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-11-18 10:54:04,785 INFO L425 ceAbstractionStarter]: For program point L668(lines 668 870) no Hoare annotation was computed. [2018-11-18 10:54:04,785 INFO L425 ceAbstractionStarter]: For program point L536(lines 536 870) no Hoare annotation was computed. [2018-11-18 10:54:04,785 INFO L425 ceAbstractionStarter]: For program point L801(lines 801 870) no Hoare annotation was computed. [2018-11-18 10:54:04,785 INFO L425 ceAbstractionStarter]: For program point L735(lines 735 870) no Hoare annotation was computed. [2018-11-18 10:54:04,786 INFO L425 ceAbstractionStarter]: For program point L603(lines 603 870) no Hoare annotation was computed. [2018-11-18 10:54:04,786 INFO L425 ceAbstractionStarter]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,786 INFO L425 ceAbstractionStarter]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,786 INFO L425 ceAbstractionStarter]: For program point L472(lines 472 870) no Hoare annotation was computed. [2018-11-18 10:54:04,786 INFO L425 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-11-18 10:54:04,786 INFO L425 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-11-18 10:54:04,786 INFO L425 ceAbstractionStarter]: For program point L341(lines 341 870) no Hoare annotation was computed. [2018-11-18 10:54:04,786 INFO L425 ceAbstractionStarter]: For program point L275(lines 275 870) no Hoare annotation was computed. [2018-11-18 10:54:04,786 INFO L425 ceAbstractionStarter]: For program point L408(lines 408 870) no Hoare annotation was computed. [2018-11-18 10:54:04,786 INFO L425 ceAbstractionStarter]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,786 INFO L425 ceAbstractionStarter]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,786 INFO L425 ceAbstractionStarter]: For program point L541(lines 541 870) no Hoare annotation was computed. [2018-11-18 10:54:04,786 INFO L425 ceAbstractionStarter]: For program point L211(lines 211 870) no Hoare annotation was computed. [2018-11-18 10:54:04,786 INFO L425 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-11-18 10:54:04,786 INFO L425 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-18 10:54:04,786 INFO L425 ceAbstractionStarter]: For program point L674(lines 674 870) no Hoare annotation was computed. [2018-11-18 10:54:04,787 INFO L425 ceAbstractionStarter]: For program point L807(lines 807 870) no Hoare annotation was computed. [2018-11-18 10:54:04,787 INFO L425 ceAbstractionStarter]: For program point L741(lines 741 870) no Hoare annotation was computed. [2018-11-18 10:54:04,787 INFO L425 ceAbstractionStarter]: For program point L609(lines 609 870) no Hoare annotation was computed. [2018-11-18 10:54:04,787 INFO L425 ceAbstractionStarter]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,787 INFO L425 ceAbstractionStarter]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,787 INFO L425 ceAbstractionStarter]: For program point L478(lines 478 870) no Hoare annotation was computed. [2018-11-18 10:54:04,787 INFO L425 ceAbstractionStarter]: For program point L280(lines 280 870) no Hoare annotation was computed. [2018-11-18 10:54:04,787 INFO L425 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-11-18 10:54:04,787 INFO L425 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-11-18 10:54:04,787 INFO L425 ceAbstractionStarter]: For program point L677(lines 677 870) no Hoare annotation was computed. [2018-11-18 10:54:04,787 INFO L425 ceAbstractionStarter]: For program point L347(lines 347 870) no Hoare annotation was computed. [2018-11-18 10:54:04,787 INFO L425 ceAbstractionStarter]: For program point L414(lines 414 870) no Hoare annotation was computed. [2018-11-18 10:54:04,787 INFO L425 ceAbstractionStarter]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,787 INFO L425 ceAbstractionStarter]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,788 INFO L425 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,788 INFO L425 ceAbstractionStarter]: For program point L547(lines 547 870) no Hoare annotation was computed. [2018-11-18 10:54:04,788 INFO L425 ceAbstractionStarter]: For program point L217(lines 217 870) no Hoare annotation was computed. [2018-11-18 10:54:04,788 INFO L425 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-11-18 10:54:04,788 INFO L425 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-11-18 10:54:04,788 INFO L425 ceAbstractionStarter]: For program point L747(lines 747 870) no Hoare annotation was computed. [2018-11-18 10:54:04,788 INFO L425 ceAbstractionStarter]: For program point L615(lines 615 870) no Hoare annotation was computed. [2018-11-18 10:54:04,788 INFO L425 ceAbstractionStarter]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,788 INFO L425 ceAbstractionStarter]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,788 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-11-18 10:54:04,788 INFO L425 ceAbstractionStarter]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,788 INFO L425 ceAbstractionStarter]: For program point L814(lines 814 870) no Hoare annotation was computed. [2018-11-18 10:54:04,788 INFO L425 ceAbstractionStarter]: For program point L484(lines 484 870) no Hoare annotation was computed. [2018-11-18 10:54:04,788 INFO L425 ceAbstractionStarter]: For program point L286(lines 286 870) no Hoare annotation was computed. [2018-11-18 10:54:04,788 INFO L425 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-11-18 10:54:04,789 INFO L425 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-11-18 10:54:04,789 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-18 10:54:04,789 INFO L425 ceAbstractionStarter]: For program point L683(lines 683 870) no Hoare annotation was computed. [2018-11-18 10:54:04,789 INFO L425 ceAbstractionStarter]: For program point L353(lines 353 870) no Hoare annotation was computed. [2018-11-18 10:54:04,789 INFO L425 ceAbstractionStarter]: For program point L552(lines 552 870) no Hoare annotation was computed. [2018-11-18 10:54:04,789 INFO L425 ceAbstractionStarter]: For program point L420(lines 420 870) no Hoare annotation was computed. [2018-11-18 10:54:04,789 INFO L425 ceAbstractionStarter]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,789 INFO L425 ceAbstractionStarter]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,789 INFO L425 ceAbstractionStarter]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,789 INFO L425 ceAbstractionStarter]: For program point L223(lines 223 870) no Hoare annotation was computed. [2018-11-18 10:54:04,789 INFO L425 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-11-18 10:54:04,789 INFO L425 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-11-18 10:54:04,789 INFO L425 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-18 10:54:04,789 INFO L425 ceAbstractionStarter]: For program point L752(lines 752 870) no Hoare annotation was computed. [2018-11-18 10:54:04,790 INFO L425 ceAbstractionStarter]: For program point L819(lines 819 870) no Hoare annotation was computed. [2018-11-18 10:54:04,790 INFO L425 ceAbstractionStarter]: For program point L621(lines 621 870) no Hoare annotation was computed. [2018-11-18 10:54:04,790 INFO L425 ceAbstractionStarter]: For program point L555(lines 555 870) no Hoare annotation was computed. [2018-11-18 10:54:04,790 INFO L425 ceAbstractionStarter]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,790 INFO L425 ceAbstractionStarter]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,790 INFO L425 ceAbstractionStarter]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,790 INFO L425 ceAbstractionStarter]: For program point L688(lines 688 870) no Hoare annotation was computed. [2018-11-18 10:54:04,790 INFO L425 ceAbstractionStarter]: For program point L490(lines 490 870) no Hoare annotation was computed. [2018-11-18 10:54:04,790 INFO L425 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-11-18 10:54:04,790 INFO L425 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-11-18 10:54:04,790 INFO L425 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-11-18 10:54:04,790 INFO L425 ceAbstractionStarter]: For program point L359(lines 359 870) no Hoare annotation was computed. [2018-11-18 10:54:04,790 INFO L425 ceAbstractionStarter]: For program point L293(lines 293 870) no Hoare annotation was computed. [2018-11-18 10:54:04,790 INFO L425 ceAbstractionStarter]: For program point L426(lines 426 870) no Hoare annotation was computed. [2018-11-18 10:54:04,790 INFO L425 ceAbstractionStarter]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,791 INFO L425 ceAbstractionStarter]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,791 INFO L425 ceAbstractionStarter]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,791 INFO L425 ceAbstractionStarter]: For program point L229(lines 229 870) no Hoare annotation was computed. [2018-11-18 10:54:04,791 INFO L425 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-11-18 10:54:04,791 INFO L425 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-11-18 10:54:04,791 INFO L425 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-11-18 10:54:04,791 INFO L425 ceAbstractionStarter]: For program point L758(lines 758 870) no Hoare annotation was computed. [2018-11-18 10:54:04,791 INFO L425 ceAbstractionStarter]: For program point L626(lines 626 870) no Hoare annotation was computed. [2018-11-18 10:54:04,791 INFO L425 ceAbstractionStarter]: For program point L825(lines 825 870) no Hoare annotation was computed. [2018-11-18 10:54:04,791 INFO L425 ceAbstractionStarter]: For program point L561(lines 561 870) no Hoare annotation was computed. [2018-11-18 10:54:04,791 INFO L425 ceAbstractionStarter]: For program point L495(lines 495 870) no Hoare annotation was computed. [2018-11-18 10:54:04,791 INFO L425 ceAbstractionStarter]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,791 INFO L425 ceAbstractionStarter]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,791 INFO L425 ceAbstractionStarter]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:54:04,791 INFO L425 ceAbstractionStarter]: For program point L694(lines 694 870) no Hoare annotation was computed. [2018-11-18 10:54:04,791 INFO L425 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-11-18 10:54:04,791 INFO L425 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-11-18 10:54:04,792 INFO L425 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-11-18 10:54:04,792 INFO L425 ceAbstractionStarter]: For program point L299(lines 299 870) no Hoare annotation was computed. [2018-11-18 10:54:04,792 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:54:04,792 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a15~0 8) (= (+ ~a12~0 49) 0) (= ~a24~0 1) (= ~a21~0 7)) [2018-11-18 10:54:04,792 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 10:54:04,792 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 10:54:04,792 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= 7 |old(~a21~0)|)) (not (= 1 |old(~a24~0)|)) (not (= 8 |old(~a15~0)|)) (not (= 0 (+ |old(~a12~0)| 49))) (and (= |old(~a15~0)| ~a15~0) (= (+ ~a12~0 49) 0) (= ~a24~0 1) (= ~a21~0 7))) [2018-11-18 10:54:04,792 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2018-11-18 10:54:04,792 INFO L421 ceAbstractionStarter]: At program point L888(line 888) the Hoare annotation is: (let ((.cse1 (not (= ~a15~0 6))) (.cse0 (not (= ~a15~0 9))) (.cse2 (= 1 ~a24~0)) (.cse3 (<= 0 (+ ~a12~0 42)))) (or (and .cse0 (<= ~a21~0 7) .cse1) (and (not (= 9 ~a21~0)) .cse2 .cse1) (and (and .cse2 (<= ~a12~0 11)) .cse3) (not (= 7 |old(~a21~0)|)) (not (= 1 |old(~a24~0)|)) (not (= 8 |old(~a15~0)|)) (and (and .cse0 .cse2) (= ~a21~0 9)) (not (= 0 (+ |old(~a12~0)| 49))) (and (not (= 10 ~a21~0)) (= ~a24~0 |old(~a24~0)|) .cse3))) [2018-11-18 10:54:04,792 INFO L425 ceAbstractionStarter]: For program point L888-1(line 888) no Hoare annotation was computed. [2018-11-18 10:54:04,792 INFO L425 ceAbstractionStarter]: For program point L885(line 885) no Hoare annotation was computed. [2018-11-18 10:54:04,792 INFO L425 ceAbstractionStarter]: For program point L880-1(lines 880 889) no Hoare annotation was computed. [2018-11-18 10:54:04,793 INFO L421 ceAbstractionStarter]: At program point L880-3(lines 880 889) the Hoare annotation is: (let ((.cse1 (not (= ~a15~0 6))) (.cse0 (not (= ~a15~0 9))) (.cse2 (= 1 ~a24~0)) (.cse3 (<= 0 (+ ~a12~0 42)))) (or (and .cse0 (<= ~a21~0 7) .cse1) (and (not (= 9 ~a21~0)) .cse2 .cse1) (and (and .cse2 (<= ~a12~0 11)) .cse3) (not (= 7 |old(~a21~0)|)) (not (= 1 |old(~a24~0)|)) (not (= 8 |old(~a15~0)|)) (and (and .cse0 .cse2) (= ~a21~0 9)) (not (= 0 (+ |old(~a12~0)| 49))) (and (not (= 10 ~a21~0)) (= ~a24~0 |old(~a24~0)|) .cse3))) [2018-11-18 10:54:04,793 INFO L425 ceAbstractionStarter]: For program point L880-4(lines 874 890) no Hoare annotation was computed. [2018-11-18 10:54:04,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:54:04 BoogieIcfgContainer [2018-11-18 10:54:04,805 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 10:54:04,805 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:54:04,805 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:54:04,805 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:54:04,806 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:52:41" (3/4) ... [2018-11-18 10:54:04,809 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 10:54:04,813 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 10:54:04,813 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-18 10:54:04,814 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 10:54:04,824 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 10:54:04,825 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 10:54:04,850 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(a15 == 9) && a21 <= 7) && !(a15 == 6)) || ((!(9 == a21) && 1 == a24) && !(a15 == 6))) || ((1 == a24 && a12 <= 11) && 0 <= a12 + 42)) || !(7 == \old(a21))) || !(1 == \old(a24))) || !(8 == \old(a15))) || ((!(a15 == 9) && 1 == a24) && a21 == 9)) || !(0 == \old(a12) + 49)) || ((!(10 == a21) && a24 == \old(a24)) && 0 <= a12 + 42) [2018-11-18 10:54:04,931 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7572e4be-37af-4275-b02c-f166d5b2bc35/bin-2019/utaipan/witness.graphml [2018-11-18 10:54:04,931 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:54:04,932 INFO L168 Benchmark]: Toolchain (without parser) took 84986.94 ms. Allocated memory was 1.0 GB in the beginning and 5.0 GB in the end (delta: 4.0 GB). Free memory was 956.6 MB in the beginning and 2.3 GB in the end (delta: -1.4 GB). Peak memory consumption was 2.6 GB. Max. memory is 11.5 GB. [2018-11-18 10:54:04,932 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:54:04,932 INFO L168 Benchmark]: CACSL2BoogieTranslator took 388.81 ms. Allocated memory is still 1.0 GB. Free memory was 956.6 MB in the beginning and 912.5 MB in the end (delta: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 11.5 GB. [2018-11-18 10:54:04,933 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 912.5 MB in the beginning and 1.1 GB in the end (delta: -220.8 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. [2018-11-18 10:54:04,933 INFO L168 Benchmark]: Boogie Preprocessor took 53.82 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. [2018-11-18 10:54:04,933 INFO L168 Benchmark]: RCFGBuilder took 928.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 120.5 MB). Peak memory consumption was 120.5 MB. Max. memory is 11.5 GB. [2018-11-18 10:54:04,933 INFO L168 Benchmark]: TraceAbstraction took 83410.94 ms. Allocated memory was 1.2 GB in the beginning and 5.0 GB in the end (delta: 3.9 GB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 4.0 GB. Max. memory is 11.5 GB. [2018-11-18 10:54:04,933 INFO L168 Benchmark]: Witness Printer took 125.86 ms. Allocated memory is still 5.0 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 7.4 kB). Peak memory consumption was 7.4 kB. Max. memory is 11.5 GB. [2018-11-18 10:54:04,935 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 388.81 ms. Allocated memory is still 1.0 GB. Free memory was 956.6 MB in the beginning and 912.5 MB in the end (delta: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 75.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 912.5 MB in the beginning and 1.1 GB in the end (delta: -220.8 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.82 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 928.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 120.5 MB). Peak memory consumption was 120.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 83410.94 ms. Allocated memory was 1.2 GB in the beginning and 5.0 GB in the end (delta: 3.9 GB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 4.0 GB. Max. memory is 11.5 GB. * Witness Printer took 125.86 ms. Allocated memory is still 5.0 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 7.4 kB). Peak memory consumption was 7.4 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: (((((((((!(a15 == 9) && a21 <= 7) && !(a15 == 6)) || ((!(9 == a21) && 1 == a24) && !(a15 == 6))) || ((1 == a24 && a12 <= 11) && 0 <= a12 + 42)) || !(7 == \old(a21))) || !(1 == \old(a24))) || !(8 == \old(a15))) || ((!(a15 == 9) && 1 == a24) && a21 == 9)) || !(0 == \old(a12) + 49)) || ((!(10 == a21) && a24 == \old(a24)) && 0 <= a12 + 42) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. SAFE Result, 83.3s OverallTime, 13 OverallIterations, 6 TraceHistogramMax, 41.6s AutomataDifference, 0.0s DeadEndRemovalTime, 6.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1695 SDtfs, 19642 SDslu, 2510 SDs, 0 SdLazy, 22894 SolverSat, 4605 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 31.9s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 6420 GetRequests, 6204 SyntacticMatches, 16 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1706 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15163occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 26.7s AbstIntTime, 8 AbstIntIterations, 2 AbstIntStrong, 0.9971954676173164 AbsIntWeakeningRatio, 0.10086956521739131 AbsIntAvgWeakeningVarsNumRemoved, 15.622608695652174 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 13 MinimizatonAttempts, 3242 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 404 PreInvPairs, 632 NumberOfFragments, 354 HoareAnnotationTreeSize, 404 FomulaSimplifications, 127785 FormulaSimplificationTreeSizeReduction, 1.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 200595 FormulaSimplificationTreeSizeReductionInter, 4.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 7831 NumberOfCodeBlocks, 7831 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 10605 ConstructedInterpolants, 0 QuantifiedInterpolants, 17959735 SizeOfPredicates, 17 NumberOfNonLiveVariables, 4345 ConjunctsInSsa, 67 ConjunctsInUnsatCore, 25 InterpolantComputations, 5 PerfectInterpolantSequences, 15378/16340 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...