./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label08_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_da8c09fb-e7d3-4f71-a185-56116617ca64/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_da8c09fb-e7d3-4f71-a185-56116617ca64/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_da8c09fb-e7d3-4f71-a185-56116617ca64/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_da8c09fb-e7d3-4f71-a185-56116617ca64/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label08_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_da8c09fb-e7d3-4f71-a185-56116617ca64/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_da8c09fb-e7d3-4f71-a185-56116617ca64/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 16d1e07abe3d8baa61b9a8d494202a7664f873bb .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 15:16:55,286 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 15:16:55,287 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 15:16:55,294 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 15:16:55,294 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 15:16:55,295 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 15:16:55,296 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 15:16:55,297 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 15:16:55,298 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 15:16:55,298 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 15:16:55,299 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 15:16:55,299 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 15:16:55,300 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 15:16:55,301 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 15:16:55,301 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 15:16:55,302 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 15:16:55,302 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 15:16:55,304 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 15:16:55,305 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 15:16:55,306 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 15:16:55,307 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 15:16:55,308 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 15:16:55,309 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 15:16:55,309 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 15:16:55,310 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 15:16:55,310 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 15:16:55,311 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 15:16:55,312 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 15:16:55,312 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 15:16:55,313 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 15:16:55,313 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 15:16:55,313 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 15:16:55,314 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 15:16:55,314 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 15:16:55,314 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 15:16:55,315 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 15:16:55,315 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_da8c09fb-e7d3-4f71-a185-56116617ca64/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 15:16:55,325 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 15:16:55,325 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 15:16:55,326 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 15:16:55,326 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 15:16:55,326 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 15:16:55,326 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 15:16:55,326 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 15:16:55,327 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 15:16:55,327 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 15:16:55,327 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 15:16:55,327 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 15:16:55,327 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 15:16:55,327 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 15:16:55,327 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 15:16:55,328 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 15:16:55,328 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 15:16:55,328 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 15:16:55,328 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 15:16:55,328 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 15:16:55,328 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 15:16:55,328 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 15:16:55,328 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 15:16:55,329 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 15:16:55,329 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 15:16:55,329 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 15:16:55,329 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 15:16:55,329 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 15:16:55,329 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 15:16:55,329 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 15:16:55,329 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 15:16:55,329 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 15:16:55,329 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 15:16:55,330 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 15:16:55,330 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 15:16:55,330 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 15:16:55,330 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 15:16:55,330 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_da8c09fb-e7d3-4f71-a185-56116617ca64/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 -> 16d1e07abe3d8baa61b9a8d494202a7664f873bb [2018-12-02 15:16:55,352 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 15:16:55,360 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 15:16:55,362 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 15:16:55,363 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 15:16:55,363 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 15:16:55,364 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_da8c09fb-e7d3-4f71-a185-56116617ca64/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem01_label08_true-unreach-call_false-termination.c [2018-12-02 15:16:55,405 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_da8c09fb-e7d3-4f71-a185-56116617ca64/bin-2019/utaipan/data/dabeaf6d1/d61ee5cb00fd41e09fe349c049c8e754/FLAG5943115e8 [2018-12-02 15:16:55,917 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 15:16:55,917 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_da8c09fb-e7d3-4f71-a185-56116617ca64/sv-benchmarks/c/eca-rers2012/Problem01_label08_true-unreach-call_false-termination.c [2018-12-02 15:16:55,924 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_da8c09fb-e7d3-4f71-a185-56116617ca64/bin-2019/utaipan/data/dabeaf6d1/d61ee5cb00fd41e09fe349c049c8e754/FLAG5943115e8 [2018-12-02 15:16:56,384 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_da8c09fb-e7d3-4f71-a185-56116617ca64/bin-2019/utaipan/data/dabeaf6d1/d61ee5cb00fd41e09fe349c049c8e754 [2018-12-02 15:16:56,386 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 15:16:56,387 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 15:16:56,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 15:16:56,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 15:16:56,389 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 15:16:56,390 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:16:56" (1/1) ... [2018-12-02 15:16:56,391 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2817da2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:56, skipping insertion in model container [2018-12-02 15:16:56,391 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:16:56" (1/1) ... [2018-12-02 15:16:56,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 15:16:56,426 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 15:16:56,617 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 15:16:56,621 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 15:16:56,723 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 15:16:56,733 INFO L195 MainTranslator]: Completed translation [2018-12-02 15:16:56,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:56 WrapperNode [2018-12-02 15:16:56,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 15:16:56,734 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 15:16:56,734 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 15:16:56,734 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 15:16:56,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:56" (1/1) ... [2018-12-02 15:16:56,748 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:56" (1/1) ... [2018-12-02 15:16:56,753 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 15:16:56,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 15:16:56,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 15:16:56,753 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 15:16:56,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:56" (1/1) ... [2018-12-02 15:16:56,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:56" (1/1) ... [2018-12-02 15:16:56,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:56" (1/1) ... [2018-12-02 15:16:56,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:56" (1/1) ... [2018-12-02 15:16:56,787 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:56" (1/1) ... [2018-12-02 15:16:56,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:56" (1/1) ... [2018-12-02 15:16:56,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:56" (1/1) ... [2018-12-02 15:16:56,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 15:16:56,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 15:16:56,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 15:16:56,803 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 15:16:56,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_da8c09fb-e7d3-4f71-a185-56116617ca64/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 15:16:56,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 15:16:56,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 15:16:56,841 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-12-02 15:16:56,841 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-12-02 15:16:56,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 15:16:56,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 15:16:56,841 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 15:16:56,842 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 15:16:57,404 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 15:16:57,404 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-02 15:16:57,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:16:57 BoogieIcfgContainer [2018-12-02 15:16:57,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 15:16:57,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 15:16:57,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 15:16:57,408 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 15:16:57,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:16:56" (1/3) ... [2018-12-02 15:16:57,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b7558b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:16:57, skipping insertion in model container [2018-12-02 15:16:57,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:56" (2/3) ... [2018-12-02 15:16:57,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b7558b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:16:57, skipping insertion in model container [2018-12-02 15:16:57,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:16:57" (3/3) ... [2018-12-02 15:16:57,411 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label08_true-unreach-call_false-termination.c [2018-12-02 15:16:57,417 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 15:16:57,423 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 15:16:57,433 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 15:16:57,458 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 15:16:57,458 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 15:16:57,458 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 15:16:57,458 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 15:16:57,459 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 15:16:57,459 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 15:16:57,459 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 15:16:57,459 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 15:16:57,476 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2018-12-02 15:16:57,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-12-02 15:16:57,484 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:16:57,485 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:16:57,487 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:16:57,490 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:16:57,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1920403729, now seen corresponding path program 1 times [2018-12-02 15:16:57,492 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 15:16:57,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:57,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:16:57,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:57,522 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 15:16:57,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:16:57,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:16:57,745 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 15:16:57,745 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 15:16:57,745 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 15:16:57,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 15:16:57,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 15:16:57,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 15:16:57,758 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2018-12-02 15:16:58,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:16:58,203 INFO L93 Difference]: Finished difference Result 547 states and 938 transitions. [2018-12-02 15:16:58,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 15:16:58,204 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2018-12-02 15:16:58,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:16:58,212 INFO L225 Difference]: With dead ends: 547 [2018-12-02 15:16:58,212 INFO L226 Difference]: Without dead ends: 278 [2018-12-02 15:16:58,215 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 15:16:58,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2018-12-02 15:16:58,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2018-12-02 15:16:58,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2018-12-02 15:16:58,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 394 transitions. [2018-12-02 15:16:58,253 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 394 transitions. Word has length 119 [2018-12-02 15:16:58,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:16:58,253 INFO L480 AbstractCegarLoop]: Abstraction has 278 states and 394 transitions. [2018-12-02 15:16:58,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 15:16:58,253 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 394 transitions. [2018-12-02 15:16:58,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-12-02 15:16:58,256 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:16:58,256 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:16:58,257 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:16:58,257 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:16:58,257 INFO L82 PathProgramCache]: Analyzing trace with hash 10659704, now seen corresponding path program 1 times [2018-12-02 15:16:58,257 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 15:16:58,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:58,258 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:16:58,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:58,258 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 15:16:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:16:58,327 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:16:58,328 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 15:16:58,328 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 15:16:58,328 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 15:16:58,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 15:16:58,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 15:16:58,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-02 15:16:58,329 INFO L87 Difference]: Start difference. First operand 278 states and 394 transitions. Second operand 6 states. [2018-12-02 15:16:58,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:16:58,723 INFO L93 Difference]: Finished difference Result 840 states and 1222 transitions. [2018-12-02 15:16:58,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 15:16:58,724 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2018-12-02 15:16:58,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:16:58,729 INFO L225 Difference]: With dead ends: 840 [2018-12-02 15:16:58,729 INFO L226 Difference]: Without dead ends: 568 [2018-12-02 15:16:58,730 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-12-02 15:16:58,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2018-12-02 15:16:58,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 556. [2018-12-02 15:16:58,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2018-12-02 15:16:58,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 785 transitions. [2018-12-02 15:16:58,756 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 785 transitions. Word has length 129 [2018-12-02 15:16:58,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:16:58,756 INFO L480 AbstractCegarLoop]: Abstraction has 556 states and 785 transitions. [2018-12-02 15:16:58,756 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 15:16:58,756 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 785 transitions. [2018-12-02 15:16:58,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-12-02 15:16:58,758 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:16:58,758 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:16:58,758 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:16:58,758 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:16:58,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1525536778, now seen corresponding path program 1 times [2018-12-02 15:16:58,759 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 15:16:58,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:58,759 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:16:58,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:58,759 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 15:16:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:16:58,943 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:16:58,943 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 15:16:58,943 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 15:16:58,943 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 15:16:58,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 15:16:58,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 15:16:58,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-02 15:16:58,944 INFO L87 Difference]: Start difference. First operand 556 states and 785 transitions. Second operand 5 states. [2018-12-02 15:16:59,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:16:59,286 INFO L93 Difference]: Finished difference Result 1205 states and 1730 transitions. [2018-12-02 15:16:59,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 15:16:59,287 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 130 [2018-12-02 15:16:59,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:16:59,288 INFO L225 Difference]: With dead ends: 1205 [2018-12-02 15:16:59,288 INFO L226 Difference]: Without dead ends: 554 [2018-12-02 15:16:59,289 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-02 15:16:59,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2018-12-02 15:16:59,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2018-12-02 15:16:59,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2018-12-02 15:16:59,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 712 transitions. [2018-12-02 15:16:59,300 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 712 transitions. Word has length 130 [2018-12-02 15:16:59,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:16:59,300 INFO L480 AbstractCegarLoop]: Abstraction has 554 states and 712 transitions. [2018-12-02 15:16:59,300 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 15:16:59,300 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 712 transitions. [2018-12-02 15:16:59,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-12-02 15:16:59,301 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:16:59,302 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:16:59,302 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:16:59,302 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:16:59,302 INFO L82 PathProgramCache]: Analyzing trace with hash -1052025540, now seen corresponding path program 1 times [2018-12-02 15:16:59,302 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 15:16:59,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:59,302 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:16:59,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:59,303 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 15:16:59,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:16:59,462 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:16:59,462 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 15:16:59,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 15:16:59,462 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 15:16:59,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 15:16:59,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 15:16:59,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-02 15:16:59,463 INFO L87 Difference]: Start difference. First operand 554 states and 712 transitions. Second operand 5 states. [2018-12-02 15:16:59,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:16:59,772 INFO L93 Difference]: Finished difference Result 1184 states and 1552 transitions. [2018-12-02 15:16:59,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 15:16:59,773 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 131 [2018-12-02 15:16:59,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:16:59,774 INFO L225 Difference]: With dead ends: 1184 [2018-12-02 15:16:59,774 INFO L226 Difference]: Without dead ends: 554 [2018-12-02 15:16:59,775 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-02 15:16:59,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2018-12-02 15:16:59,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2018-12-02 15:16:59,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2018-12-02 15:16:59,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 708 transitions. [2018-12-02 15:16:59,784 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 708 transitions. Word has length 131 [2018-12-02 15:16:59,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:16:59,784 INFO L480 AbstractCegarLoop]: Abstraction has 554 states and 708 transitions. [2018-12-02 15:16:59,784 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 15:16:59,784 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 708 transitions. [2018-12-02 15:16:59,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-12-02 15:16:59,785 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:16:59,785 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:16:59,786 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:16:59,786 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:16:59,786 INFO L82 PathProgramCache]: Analyzing trace with hash -866015874, now seen corresponding path program 1 times [2018-12-02 15:16:59,786 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 15:16:59,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:59,786 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:16:59,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:59,787 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 15:16:59,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:16:59,834 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:16:59,834 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 15:16:59,834 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 15:16:59,834 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 15:16:59,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 15:16:59,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 15:16:59,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 15:16:59,835 INFO L87 Difference]: Start difference. First operand 554 states and 708 transitions. Second operand 3 states. [2018-12-02 15:17:00,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:17:00,050 INFO L93 Difference]: Finished difference Result 1509 states and 1954 transitions. [2018-12-02 15:17:00,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 15:17:00,050 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 134 [2018-12-02 15:17:00,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:17:00,052 INFO L225 Difference]: With dead ends: 1509 [2018-12-02 15:17:00,052 INFO L226 Difference]: Without dead ends: 961 [2018-12-02 15:17:00,053 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 15:17:00,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2018-12-02 15:17:00,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 959. [2018-12-02 15:17:00,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 959 states. [2018-12-02 15:17:00,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1180 transitions. [2018-12-02 15:17:00,066 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1180 transitions. Word has length 134 [2018-12-02 15:17:00,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:17:00,067 INFO L480 AbstractCegarLoop]: Abstraction has 959 states and 1180 transitions. [2018-12-02 15:17:00,067 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 15:17:00,067 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1180 transitions. [2018-12-02 15:17:00,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-12-02 15:17:00,069 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:17:00,069 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:17:00,069 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:17:00,069 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:17:00,069 INFO L82 PathProgramCache]: Analyzing trace with hash -494413009, now seen corresponding path program 1 times [2018-12-02 15:17:00,069 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 15:17:00,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:17:00,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:17:00,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:17:00,070 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 15:17:00,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:17:00,132 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:17:00,133 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 15:17:00,133 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 15:17:00,133 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 166 with the following transitions: [2018-12-02 15:17:00,135 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [97], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [597], [599], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-02 15:17:00,163 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 15:17:00,163 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 15:17:00,398 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 15:17:00,399 INFO L272 AbstractInterpreter]: Visited 120 different actions 120 times. Never merged. Never widened. Performed 1586 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1586 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 42 variables. [2018-12-02 15:17:00,403 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:17:00,404 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 15:17:00,622 INFO L227 lantSequenceWeakener]: Weakened 156 states. On average, predicates are now at 80.43% of their original sizes. [2018-12-02 15:17:00,622 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 15:17:00,658 INFO L418 sIntCurrentIteration]: We unified 164 AI predicates to 164 [2018-12-02 15:17:00,659 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 15:17:00,659 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 15:17:00,659 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-12-02 15:17:00,660 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 15:17:00,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 15:17:00,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 15:17:00,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-02 15:17:00,661 INFO L87 Difference]: Start difference. First operand 959 states and 1180 transitions. Second operand 6 states. [2018-12-02 15:17:02,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:17:02,557 INFO L93 Difference]: Finished difference Result 2048 states and 2511 transitions. [2018-12-02 15:17:02,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 15:17:02,557 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2018-12-02 15:17:02,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:17:02,561 INFO L225 Difference]: With dead ends: 2048 [2018-12-02 15:17:02,561 INFO L226 Difference]: Without dead ends: 1095 [2018-12-02 15:17:02,562 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 165 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-02 15:17:02,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2018-12-02 15:17:02,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 1094. [2018-12-02 15:17:02,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1094 states. [2018-12-02 15:17:02,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1321 transitions. [2018-12-02 15:17:02,581 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1321 transitions. Word has length 165 [2018-12-02 15:17:02,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:17:02,582 INFO L480 AbstractCegarLoop]: Abstraction has 1094 states and 1321 transitions. [2018-12-02 15:17:02,582 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 15:17:02,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1321 transitions. [2018-12-02 15:17:02,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-12-02 15:17:02,584 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:17:02,584 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:17:02,585 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:17:02,585 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:17:02,585 INFO L82 PathProgramCache]: Analyzing trace with hash 267773236, now seen corresponding path program 1 times [2018-12-02 15:17:02,585 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 15:17:02,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:17:02,585 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:17:02,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:17:02,586 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 15:17:02,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:17:02,667 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 55 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-02 15:17:02,667 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 15:17:02,667 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 15:17:02,668 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 174 with the following transitions: [2018-12-02 15:17:02,668 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [97], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [597], [599], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-02 15:17:02,671 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 15:17:02,672 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 15:17:02,863 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 15:17:02,863 INFO L272 AbstractInterpreter]: Visited 124 different actions 242 times. Merged at 4 different actions 4 times. Never widened. Performed 3170 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3170 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-12-02 15:17:02,867 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:17:02,867 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 15:17:03,045 INFO L227 lantSequenceWeakener]: Weakened 170 states. On average, predicates are now at 81.86% of their original sizes. [2018-12-02 15:17:03,045 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 15:17:03,093 INFO L418 sIntCurrentIteration]: We unified 172 AI predicates to 172 [2018-12-02 15:17:03,093 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 15:17:03,094 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 15:17:03,094 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-12-02 15:17:03,094 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 15:17:03,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-02 15:17:03,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 15:17:03,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-02 15:17:03,095 INFO L87 Difference]: Start difference. First operand 1094 states and 1321 transitions. Second operand 10 states. [2018-12-02 15:17:04,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:17:04,951 INFO L93 Difference]: Finished difference Result 2186 states and 2669 transitions. [2018-12-02 15:17:04,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-02 15:17:04,951 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2018-12-02 15:17:04,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:17:04,954 INFO L225 Difference]: With dead ends: 2186 [2018-12-02 15:17:04,954 INFO L226 Difference]: Without dead ends: 1233 [2018-12-02 15:17:04,955 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 180 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-12-02 15:17:04,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1233 states. [2018-12-02 15:17:04,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1233 to 1231. [2018-12-02 15:17:04,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1231 states. [2018-12-02 15:17:04,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1231 states to 1231 states and 1468 transitions. [2018-12-02 15:17:04,971 INFO L78 Accepts]: Start accepts. Automaton has 1231 states and 1468 transitions. Word has length 173 [2018-12-02 15:17:04,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:17:04,971 INFO L480 AbstractCegarLoop]: Abstraction has 1231 states and 1468 transitions. [2018-12-02 15:17:04,971 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-02 15:17:04,971 INFO L276 IsEmpty]: Start isEmpty. Operand 1231 states and 1468 transitions. [2018-12-02 15:17:04,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2018-12-02 15:17:04,973 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:17:04,973 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:17:04,973 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:17:04,974 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:17:04,974 INFO L82 PathProgramCache]: Analyzing trace with hash -208954254, now seen corresponding path program 1 times [2018-12-02 15:17:04,974 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 15:17:04,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:17:04,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:17:04,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:17:04,974 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 15:17:04,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:17:05,049 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 95 proven. 15 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-12-02 15:17:05,049 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 15:17:05,049 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 15:17:05,049 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 207 with the following transitions: [2018-12-02 15:17:05,050 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [97], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [597], [599], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-02 15:17:05,052 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 15:17:05,053 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 15:17:05,177 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 15:17:05,177 INFO L272 AbstractInterpreter]: Visited 124 different actions 242 times. Merged at 4 different actions 4 times. Never widened. Performed 3233 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3233 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-12-02 15:17:05,178 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:17:05,178 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 15:17:05,381 INFO L227 lantSequenceWeakener]: Weakened 203 states. On average, predicates are now at 81.82% of their original sizes. [2018-12-02 15:17:05,381 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 15:17:05,428 INFO L418 sIntCurrentIteration]: We unified 205 AI predicates to 205 [2018-12-02 15:17:05,428 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 15:17:05,428 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 15:17:05,428 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-12-02 15:17:05,428 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 15:17:05,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-02 15:17:05,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 15:17:05,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-02 15:17:05,429 INFO L87 Difference]: Start difference. First operand 1231 states and 1468 transitions. Second operand 10 states. [2018-12-02 15:17:07,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:17:07,057 INFO L93 Difference]: Finished difference Result 2460 states and 2957 transitions. [2018-12-02 15:17:07,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-02 15:17:07,057 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 206 [2018-12-02 15:17:07,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:17:07,060 INFO L225 Difference]: With dead ends: 2460 [2018-12-02 15:17:07,060 INFO L226 Difference]: Without dead ends: 1507 [2018-12-02 15:17:07,061 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 214 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-12-02 15:17:07,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2018-12-02 15:17:07,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 1505. [2018-12-02 15:17:07,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1505 states. [2018-12-02 15:17:07,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 1763 transitions. [2018-12-02 15:17:07,081 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 1763 transitions. Word has length 206 [2018-12-02 15:17:07,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:17:07,081 INFO L480 AbstractCegarLoop]: Abstraction has 1505 states and 1763 transitions. [2018-12-02 15:17:07,081 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-02 15:17:07,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 1763 transitions. [2018-12-02 15:17:07,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-12-02 15:17:07,084 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:17:07,084 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:17:07,084 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:17:07,084 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:17:07,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1391123469, now seen corresponding path program 1 times [2018-12-02 15:17:07,084 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 15:17:07,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:17:07,085 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:17:07,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:17:07,085 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 15:17:07,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:17:07,162 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 92 proven. 51 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-12-02 15:17:07,162 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 15:17:07,162 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 15:17:07,162 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 215 with the following transitions: [2018-12-02 15:17:07,162 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [97], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [597], [599], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-02 15:17:07,164 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 15:17:07,164 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 15:17:07,422 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 15:17:07,423 INFO L272 AbstractInterpreter]: Visited 126 different actions 504 times. Merged at 8 different actions 33 times. Widened at 1 different actions 1 times. Performed 7090 root evaluator evaluations with a maximum evaluation depth of 3. Performed 7090 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 8 fixpoints after 3 different actions. Largest state had 42 variables. [2018-12-02 15:17:07,424 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:17:07,425 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 15:17:07,425 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 15:17:07,426 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_da8c09fb-e7d3-4f71-a185-56116617ca64/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 15:17:07,432 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:17:07,433 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 15:17:07,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:17:07,496 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 15:17:07,558 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-12-02 15:17:07,559 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 15:17:07,645 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 97 proven. 44 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-12-02 15:17:07,661 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 15:17:07,662 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2018-12-02 15:17:07,662 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 15:17:07,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-02 15:17:07,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-02 15:17:07,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-12-02 15:17:07,662 INFO L87 Difference]: Start difference. First operand 1505 states and 1763 transitions. Second operand 11 states. [2018-12-02 15:17:08,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:17:08,383 INFO L93 Difference]: Finished difference Result 3169 states and 3791 transitions. [2018-12-02 15:17:08,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-02 15:17:08,383 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 214 [2018-12-02 15:17:08,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:17:08,386 INFO L225 Difference]: With dead ends: 3169 [2018-12-02 15:17:08,386 INFO L226 Difference]: Without dead ends: 2079 [2018-12-02 15:17:08,388 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 429 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2018-12-02 15:17:08,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2079 states. [2018-12-02 15:17:08,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2079 to 1801. [2018-12-02 15:17:08,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1801 states. [2018-12-02 15:17:08,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1801 states to 1801 states and 2078 transitions. [2018-12-02 15:17:08,413 INFO L78 Accepts]: Start accepts. Automaton has 1801 states and 2078 transitions. Word has length 214 [2018-12-02 15:17:08,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:17:08,413 INFO L480 AbstractCegarLoop]: Abstraction has 1801 states and 2078 transitions. [2018-12-02 15:17:08,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-02 15:17:08,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1801 states and 2078 transitions. [2018-12-02 15:17:08,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-12-02 15:17:08,416 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:17:08,416 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:17:08,416 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:17:08,416 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:17:08,416 INFO L82 PathProgramCache]: Analyzing trace with hash -745426057, now seen corresponding path program 2 times [2018-12-02 15:17:08,416 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 15:17:08,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:17:08,417 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:17:08,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:17:08,417 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 15:17:08,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:17:08,509 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 92 proven. 53 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-12-02 15:17:08,509 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 15:17:08,509 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 15:17:08,509 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-02 15:17:08,509 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-02 15:17:08,509 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 15:17:08,509 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_da8c09fb-e7d3-4f71-a185-56116617ca64/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 15:17:08,516 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-02 15:17:08,516 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-02 15:17:08,560 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-12-02 15:17:08,560 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-02 15:17:08,565 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 15:17:08,622 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-12-02 15:17:08,623 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 15:17:08,678 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-12-02 15:17:08,693 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-02 15:17:08,694 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [9] total 10 [2018-12-02 15:17:08,694 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 15:17:08,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 15:17:08,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 15:17:08,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-12-02 15:17:08,694 INFO L87 Difference]: Start difference. First operand 1801 states and 2078 transitions. Second operand 3 states. [2018-12-02 15:17:08,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:17:08,924 INFO L93 Difference]: Finished difference Result 3596 states and 4302 transitions. [2018-12-02 15:17:08,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 15:17:08,925 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2018-12-02 15:17:08,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:17:08,930 INFO L225 Difference]: With dead ends: 3596 [2018-12-02 15:17:08,930 INFO L226 Difference]: Without dead ends: 2347 [2018-12-02 15:17:08,933 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 429 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-12-02 15:17:08,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2347 states. [2018-12-02 15:17:08,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2347 to 2347. [2018-12-02 15:17:08,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2347 states. [2018-12-02 15:17:08,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2347 states to 2347 states and 2747 transitions. [2018-12-02 15:17:08,965 INFO L78 Accepts]: Start accepts. Automaton has 2347 states and 2747 transitions. Word has length 214 [2018-12-02 15:17:08,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:17:08,965 INFO L480 AbstractCegarLoop]: Abstraction has 2347 states and 2747 transitions. [2018-12-02 15:17:08,965 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 15:17:08,965 INFO L276 IsEmpty]: Start isEmpty. Operand 2347 states and 2747 transitions. [2018-12-02 15:17:08,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2018-12-02 15:17:08,969 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:17:08,970 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:17:08,970 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:17:08,970 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:17:08,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1531847136, now seen corresponding path program 1 times [2018-12-02 15:17:08,970 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 15:17:08,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:17:08,971 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 15:17:08,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:17:08,971 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 15:17:08,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:17:09,057 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 103 proven. 48 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-02 15:17:09,058 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 15:17:09,058 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 15:17:09,058 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 227 with the following transitions: [2018-12-02 15:17:09,058 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [205], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [597], [599], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-02 15:17:09,060 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 15:17:09,060 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 15:17:09,279 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 15:17:09,279 INFO L272 AbstractInterpreter]: Visited 124 different actions 491 times. Merged at 7 different actions 25 times. Never widened. Performed 6738 root evaluator evaluations with a maximum evaluation depth of 3. Performed 6738 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 7 fixpoints after 2 different actions. Largest state had 42 variables. [2018-12-02 15:17:09,280 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:17:09,281 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 15:17:09,495 INFO L227 lantSequenceWeakener]: Weakened 223 states. On average, predicates are now at 83.54% of their original sizes. [2018-12-02 15:17:09,496 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 15:17:09,547 INFO L418 sIntCurrentIteration]: We unified 225 AI predicates to 225 [2018-12-02 15:17:09,547 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 15:17:09,548 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 15:17:09,548 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2018-12-02 15:17:09,548 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 15:17:09,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 15:17:09,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 15:17:09,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-02 15:17:09,548 INFO L87 Difference]: Start difference. First operand 2347 states and 2747 transitions. Second operand 9 states. [2018-12-02 15:17:11,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:17:11,005 INFO L93 Difference]: Finished difference Result 4997 states and 5948 transitions. [2018-12-02 15:17:11,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-02 15:17:11,005 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 226 [2018-12-02 15:17:11,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:17:11,012 INFO L225 Difference]: With dead ends: 4997 [2018-12-02 15:17:11,012 INFO L226 Difference]: Without dead ends: 3202 [2018-12-02 15:17:11,015 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 234 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2018-12-02 15:17:11,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3202 states. [2018-12-02 15:17:11,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3202 to 2907. [2018-12-02 15:17:11,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2907 states. [2018-12-02 15:17:11,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2907 states to 2907 states and 3348 transitions. [2018-12-02 15:17:11,052 INFO L78 Accepts]: Start accepts. Automaton has 2907 states and 3348 transitions. Word has length 226 [2018-12-02 15:17:11,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:17:11,052 INFO L480 AbstractCegarLoop]: Abstraction has 2907 states and 3348 transitions. [2018-12-02 15:17:11,052 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 15:17:11,053 INFO L276 IsEmpty]: Start isEmpty. Operand 2907 states and 3348 transitions. [2018-12-02 15:17:11,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2018-12-02 15:17:11,056 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:17:11,056 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:17:11,056 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:17:11,056 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:17:11,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1500835844, now seen corresponding path program 1 times [2018-12-02 15:17:11,056 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 15:17:11,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:17:11,057 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:17:11,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:17:11,057 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 15:17:11,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:17:11,130 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 140 proven. 83 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2018-12-02 15:17:11,130 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 15:17:11,130 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 15:17:11,130 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 262 with the following transitions: [2018-12-02 15:17:11,131 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [53], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [205], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [597], [599], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-02 15:17:11,132 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 15:17:11,132 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 15:17:11,426 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 15:17:11,426 INFO L272 AbstractInterpreter]: Visited 127 different actions 513 times. Merged at 9 different actions 38 times. Widened at 1 different actions 1 times. Performed 7147 root evaluator evaluations with a maximum evaluation depth of 3. Performed 7147 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 10 fixpoints after 3 different actions. Largest state had 42 variables. [2018-12-02 15:17:11,427 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:17:11,427 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 15:17:11,427 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 15:17:11,427 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_da8c09fb-e7d3-4f71-a185-56116617ca64/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 15:17:11,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:17:11,433 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 15:17:11,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:17:11,498 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 15:17:11,537 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 146 proven. 2 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2018-12-02 15:17:11,537 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 15:17:11,594 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 145 proven. 20 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-12-02 15:17:11,611 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 15:17:11,611 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2018-12-02 15:17:11,611 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 15:17:11,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-02 15:17:11,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-02 15:17:11,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2018-12-02 15:17:11,612 INFO L87 Difference]: Start difference. First operand 2907 states and 3348 transitions. Second operand 12 states. [2018-12-02 15:17:13,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:17:13,451 INFO L93 Difference]: Finished difference Result 10057 states and 12411 transitions. [2018-12-02 15:17:13,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-12-02 15:17:13,451 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 261 [2018-12-02 15:17:13,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:17:13,466 INFO L225 Difference]: With dead ends: 10057 [2018-12-02 15:17:13,467 INFO L226 Difference]: Without dead ends: 7428 [2018-12-02 15:17:13,471 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 597 GetRequests, 551 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 569 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=444, Invalid=1718, Unknown=0, NotChecked=0, Total=2162 [2018-12-02 15:17:13,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7428 states. [2018-12-02 15:17:13,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7428 to 5740. [2018-12-02 15:17:13,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5740 states. [2018-12-02 15:17:13,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5740 states to 5740 states and 6846 transitions. [2018-12-02 15:17:13,560 INFO L78 Accepts]: Start accepts. Automaton has 5740 states and 6846 transitions. Word has length 261 [2018-12-02 15:17:13,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:17:13,560 INFO L480 AbstractCegarLoop]: Abstraction has 5740 states and 6846 transitions. [2018-12-02 15:17:13,560 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-02 15:17:13,560 INFO L276 IsEmpty]: Start isEmpty. Operand 5740 states and 6846 transitions. [2018-12-02 15:17:13,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2018-12-02 15:17:13,571 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:17:13,572 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:17:13,572 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:17:13,572 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:17:13,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1701515942, now seen corresponding path program 1 times [2018-12-02 15:17:13,572 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 15:17:13,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:17:13,573 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:17:13,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:17:13,573 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 15:17:13,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:17:13,739 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 164 proven. 101 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-12-02 15:17:13,739 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 15:17:13,739 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 15:17:13,739 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 271 with the following transitions: [2018-12-02 15:17:13,739 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [53], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [173], [174], [178], [182], [186], [190], [194], [198], [202], [205], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [597], [599], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-02 15:17:13,741 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 15:17:13,741 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 15:17:14,040 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 15:17:14,040 INFO L272 AbstractInterpreter]: Visited 127 different actions 630 times. Merged at 9 different actions 39 times. Never widened. Performed 8733 root evaluator evaluations with a maximum evaluation depth of 3. Performed 8733 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 11 fixpoints after 2 different actions. Largest state had 42 variables. [2018-12-02 15:17:14,043 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:17:14,043 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 15:17:14,043 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 15:17:14,043 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_da8c09fb-e7d3-4f71-a185-56116617ca64/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 15:17:14,049 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:17:14,049 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 15:17:14,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:17:14,110 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 15:17:14,155 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 236 proven. 2 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2018-12-02 15:17:14,155 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 15:17:14,221 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 236 proven. 2 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2018-12-02 15:17:14,236 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 15:17:14,236 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-12-02 15:17:14,236 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 15:17:14,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 15:17:14,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 15:17:14,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-12-02 15:17:14,237 INFO L87 Difference]: Start difference. First operand 5740 states and 6846 transitions. Second operand 9 states. [2018-12-02 15:17:15,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:17:15,038 INFO L93 Difference]: Finished difference Result 12482 states and 16242 transitions. [2018-12-02 15:17:15,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-12-02 15:17:15,039 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 270 [2018-12-02 15:17:15,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:17:15,039 INFO L225 Difference]: With dead ends: 12482 [2018-12-02 15:17:15,039 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 15:17:15,066 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 569 GetRequests, 549 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2018-12-02 15:17:15,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 15:17:15,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 15:17:15,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 15:17:15,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 15:17:15,067 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 270 [2018-12-02 15:17:15,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:17:15,067 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 15:17:15,067 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 15:17:15,067 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 15:17:15,067 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 15:17:15,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 15:17:15,102 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,109 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,141 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,146 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,149 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,151 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,164 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,166 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,171 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,173 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,176 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,184 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,190 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,205 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,207 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,228 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,244 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,248 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,251 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,258 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,274 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,286 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,306 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,353 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,396 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,398 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,400 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,405 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,410 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,417 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,422 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,424 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,425 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,438 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,444 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,449 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,452 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,456 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,459 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,460 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,514 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,517 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,521 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,525 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,530 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,551 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,567 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,570 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,576 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,578 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,585 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,587 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,589 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,610 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,621 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,623 WARN L180 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 305 DAG size of output: 162 [2018-12-02 15:17:15,633 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,635 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,646 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,647 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,653 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,660 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,675 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,679 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,694 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,702 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,707 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,713 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,742 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,756 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,782 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,787 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,794 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,807 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,809 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,829 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,831 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,872 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,888 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,892 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,895 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,899 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,928 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,933 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,952 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:15,970 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:16,015 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:16,029 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:16,038 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:16,057 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:17:16,075 WARN L180 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 345 DAG size of output: 235 [2018-12-02 15:17:16,990 WARN L180 SmtUtils]: Spent 833.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 100 [2018-12-02 15:17:17,389 WARN L180 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 71 [2018-12-02 15:17:18,166 WARN L180 SmtUtils]: Spent 775.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 69 [2018-12-02 15:17:18,168 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 15:17:18,168 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a7~0 |old(~a7~0)|) (= |old(~a20~0)| ~a20~0) (= ~a17~0 |old(~a17~0)|) (= |old(~a16~0)| ~a16~0)) [2018-12-02 15:17:18,168 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 15:17:18,168 INFO L448 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2018-12-02 15:17:18,168 INFO L448 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2018-12-02 15:17:18,168 INFO L448 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,168 INFO L448 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,168 INFO L448 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,168 INFO L448 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,168 INFO L448 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,168 INFO L448 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,168 INFO L448 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2018-12-02 15:17:18,168 INFO L448 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2018-12-02 15:17:18,168 INFO L448 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2018-12-02 15:17:18,168 INFO L448 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2018-12-02 15:17:18,168 INFO L448 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2018-12-02 15:17:18,168 INFO L448 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2018-12-02 15:17:18,168 INFO L448 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2018-12-02 15:17:18,169 INFO L448 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2018-12-02 15:17:18,169 INFO L448 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2018-12-02 15:17:18,169 INFO L448 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2018-12-02 15:17:18,169 INFO L448 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,169 INFO L448 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,169 INFO L448 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,169 INFO L448 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,169 INFO L448 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,169 INFO L448 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,169 INFO L448 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2018-12-02 15:17:18,169 INFO L448 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2018-12-02 15:17:18,169 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 515) no Hoare annotation was computed. [2018-12-02 15:17:18,169 INFO L448 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2018-12-02 15:17:18,169 INFO L448 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2018-12-02 15:17:18,169 INFO L448 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2018-12-02 15:17:18,169 INFO L448 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2018-12-02 15:17:18,169 INFO L448 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2018-12-02 15:17:18,169 INFO L448 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2018-12-02 15:17:18,169 INFO L448 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2018-12-02 15:17:18,169 INFO L448 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2018-12-02 15:17:18,169 INFO L448 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2018-12-02 15:17:18,169 INFO L448 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2018-12-02 15:17:18,170 INFO L448 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2018-12-02 15:17:18,170 INFO L448 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2018-12-02 15:17:18,170 INFO L448 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2018-12-02 15:17:18,170 INFO L448 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,170 INFO L448 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,170 INFO L448 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,170 INFO L448 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,170 INFO L448 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,170 INFO L448 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2018-12-02 15:17:18,170 INFO L448 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2018-12-02 15:17:18,170 INFO L448 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2018-12-02 15:17:18,170 INFO L448 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2018-12-02 15:17:18,170 INFO L448 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2018-12-02 15:17:18,170 INFO L448 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2018-12-02 15:17:18,170 INFO L448 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2018-12-02 15:17:18,170 INFO L448 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2018-12-02 15:17:18,170 INFO L448 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2018-12-02 15:17:18,170 INFO L448 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,170 INFO L448 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,170 INFO L448 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,170 INFO L448 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,170 INFO L448 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,170 INFO L448 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2018-12-02 15:17:18,170 INFO L448 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2018-12-02 15:17:18,171 INFO L448 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2018-12-02 15:17:18,171 INFO L448 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2018-12-02 15:17:18,171 INFO L448 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2018-12-02 15:17:18,171 INFO L448 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2018-12-02 15:17:18,171 INFO L448 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2018-12-02 15:17:18,171 INFO L448 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2018-12-02 15:17:18,171 INFO L448 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2018-12-02 15:17:18,171 INFO L448 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2018-12-02 15:17:18,171 INFO L448 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2018-12-02 15:17:18,171 INFO L448 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2018-12-02 15:17:18,171 INFO L448 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2018-12-02 15:17:18,171 INFO L448 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,171 INFO L448 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,171 INFO L448 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,171 INFO L448 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,171 INFO L448 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,171 INFO L448 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2018-12-02 15:17:18,171 INFO L448 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2018-12-02 15:17:18,171 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2018-12-02 15:17:18,171 INFO L448 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2018-12-02 15:17:18,171 INFO L448 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2018-12-02 15:17:18,171 INFO L448 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2018-12-02 15:17:18,171 INFO L448 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2018-12-02 15:17:18,172 INFO L448 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2018-12-02 15:17:18,172 INFO L448 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2018-12-02 15:17:18,172 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,172 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,172 INFO L448 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,172 INFO L448 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,172 INFO L448 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,172 INFO L448 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,172 INFO L448 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2018-12-02 15:17:18,172 INFO L448 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,172 INFO L448 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2018-12-02 15:17:18,172 INFO L448 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2018-12-02 15:17:18,172 INFO L448 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2018-12-02 15:17:18,172 INFO L448 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2018-12-02 15:17:18,172 INFO L448 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2018-12-02 15:17:18,172 INFO L448 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2018-12-02 15:17:18,172 INFO L448 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2018-12-02 15:17:18,172 INFO L448 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2018-12-02 15:17:18,172 INFO L448 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2018-12-02 15:17:18,172 INFO L448 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2018-12-02 15:17:18,172 INFO L448 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2018-12-02 15:17:18,172 INFO L448 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2018-12-02 15:17:18,172 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2018-12-02 15:17:18,172 INFO L448 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,172 INFO L448 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,173 INFO L448 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,173 INFO L448 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,173 INFO L448 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,173 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2018-12-02 15:17:18,173 INFO L448 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2018-12-02 15:17:18,173 INFO L448 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2018-12-02 15:17:18,173 INFO L448 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2018-12-02 15:17:18,173 INFO L448 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2018-12-02 15:17:18,173 INFO L448 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2018-12-02 15:17:18,173 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2018-12-02 15:17:18,173 INFO L448 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2018-12-02 15:17:18,173 INFO L448 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,173 INFO L448 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,173 INFO L448 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,173 INFO L448 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,173 INFO L448 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,173 INFO L448 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2018-12-02 15:17:18,173 INFO L448 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2018-12-02 15:17:18,173 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2018-12-02 15:17:18,173 INFO L448 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2018-12-02 15:17:18,173 INFO L448 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2018-12-02 15:17:18,173 INFO L448 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2018-12-02 15:17:18,173 INFO L448 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2018-12-02 15:17:18,173 INFO L448 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2018-12-02 15:17:18,173 INFO L448 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2018-12-02 15:17:18,174 INFO L448 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2018-12-02 15:17:18,174 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse11 (= 1 |old(~a17~0)|)) (.cse17 (= 13 |old(~a8~0)|)) (.cse26 (= 1 |old(~a21~0)|)) (.cse35 (= 1 |old(~a7~0)|)) (.cse19 (not (= ~a8~0 0))) (.cse21 (= ~a21~0 1)) (.cse22 (= ~a7~0 |old(~a7~0)|)) (.cse29 (= 1 ~a7~0)) (.cse18 (= |old(~a20~0)| ~a20~0)) (.cse23 (= ~a17~0 |old(~a17~0)|)) (.cse20 (= |old(~a16~0)| ~a16~0)) (.cse16 (not (= ~a8~0 13)))) (let ((.cse15 (not (= 5 |old(~a16~0)|))) (.cse4 (< 0 |old(~a17~0)|)) (.cse24 (and .cse29 .cse18 .cse23 .cse20 .cse16)) (.cse10 (and .cse18 .cse19 .cse20 .cse21 .cse22 .cse23)) (.cse9 (= 0 |old(~a16~0)|)) (.cse12 (= 0 |old(~a8~0)|)) (.cse13 (< 0 |old(~a20~0)|)) (.cse5 (= |calculate_output_#in~input| 0)) (.cse6 (= ~a8~0 15)) (.cse0 (= 6 |old(~a16~0)|)) (.cse1 (not (= 0 |old(~a7~0)|))) (.cse8 (not (= 15 |old(~a8~0)|))) (.cse27 (and (not .cse21) .cse29 .cse18 .cse23 .cse20)) (.cse25 (not .cse35)) (.cse2 (not .cse26)) (.cse7 (not (= 1 |old(~a20~0)|))) (.cse28 (not (= 4 |old(~a16~0)|))) (.cse3 (not (= 8 ~a12~0))) (.cse30 (= 1 ~a20~0)) (.cse31 (= 13 ~a8~0)) (.cse32 (= 1 ~a21~0)) (.cse33 (= 1 ~a17~0)) (.cse34 (not .cse17)) (.cse14 (not .cse11))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (or .cse10 (or .cse0 .cse1 .cse2 .cse9 .cse3 .cse11 .cse5 .cse12 .cse13)) (or .cse1 .cse2 .cse6 .cse3 .cse5 .cse14 .cse7 .cse8 .cse15) (or .cse0 .cse1 .cse2 .cse7 .cse16 .cse17 .cse9 .cse3 .cse5 .cse12) (or .cse6 .cse5 (or .cse1 .cse2 .cse8 (not (= 0 |old(~a20~0)|)) .cse15 .cse3 .cse14)) (or .cse1 .cse2 .cse17 .cse9 .cse3 (and .cse18 .cse19 .cse20 .cse21 .cse16 .cse22 .cse23) .cse5 .cse12 .cse13) (or .cse0 .cse17 .cse24 .cse3 .cse25 .cse4 .cse13) (or (or .cse7 .cse17 .cse3) .cse25 .cse4 .cse24) (or .cse10 (or .cse1 .cse2 .cse7 .cse9 .cse3 .cse5 .cse12)) (or .cse0 .cse26 .cse3 .cse25 .cse13 .cse27) (or .cse2 .cse7 .cse28 (and .cse29 .cse30 .cse31 .cse20 .cse32 .cse33) .cse3 .cse25 .cse34 .cse14) (or .cse5 .cse6 (or (not .cse0) .cse1 .cse2 .cse7 .cse8 (not (= 0 |old(~a17~0)|)) .cse3)) (or .cse27 .cse26 (or .cse7 .cse3) .cse25) (or .cse2 .cse35 .cse7 .cse28 .cse3 (and (not (= ~a7~0 1)) .cse30 .cse31 .cse20 .cse32 .cse33) .cse34 .cse14)))) [2018-12-02 15:17:18,174 INFO L448 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2018-12-02 15:17:18,174 INFO L448 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,174 INFO L448 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,174 INFO L448 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,174 INFO L448 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,174 INFO L448 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2018-12-02 15:17:18,174 INFO L448 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,174 INFO L448 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,174 INFO L448 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2018-12-02 15:17:18,174 INFO L448 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2018-12-02 15:17:18,174 INFO L448 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2018-12-02 15:17:18,174 INFO L448 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2018-12-02 15:17:18,174 INFO L448 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2018-12-02 15:17:18,174 INFO L448 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2018-12-02 15:17:18,174 INFO L448 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2018-12-02 15:17:18,174 INFO L448 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2018-12-02 15:17:18,174 INFO L448 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2018-12-02 15:17:18,175 INFO L448 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2018-12-02 15:17:18,175 INFO L448 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2018-12-02 15:17:18,175 INFO L448 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2018-12-02 15:17:18,175 INFO L448 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,175 INFO L448 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,175 INFO L448 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,175 INFO L448 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,175 INFO L448 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,175 INFO L448 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2018-12-02 15:17:18,175 INFO L448 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,175 INFO L448 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2018-12-02 15:17:18,175 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2018-12-02 15:17:18,175 INFO L448 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2018-12-02 15:17:18,175 INFO L448 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2018-12-02 15:17:18,175 INFO L448 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2018-12-02 15:17:18,175 INFO L448 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2018-12-02 15:17:18,175 INFO L448 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2018-12-02 15:17:18,175 INFO L448 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2018-12-02 15:17:18,175 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2018-12-02 15:17:18,175 INFO L448 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2018-12-02 15:17:18,175 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2018-12-02 15:17:18,175 INFO L448 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2018-12-02 15:17:18,175 INFO L448 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2018-12-02 15:17:18,175 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2018-12-02 15:17:18,176 INFO L448 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,176 INFO L448 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,176 INFO L448 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,176 INFO L448 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,176 INFO L448 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,176 INFO L448 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:17:18,176 INFO L448 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2018-12-02 15:17:18,176 INFO L448 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2018-12-02 15:17:18,176 INFO L448 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2018-12-02 15:17:18,176 INFO L448 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2018-12-02 15:17:18,176 INFO L448 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2018-12-02 15:17:18,176 INFO L448 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2018-12-02 15:17:18,176 INFO L448 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2018-12-02 15:17:18,176 INFO L448 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2018-12-02 15:17:18,176 INFO L448 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2018-12-02 15:17:18,176 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2018-12-02 15:17:18,176 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 15:17:18,176 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a7~0 0) (= ~a8~0 15) (= ~a17~0 1) (= ~a12~0 8) (= ~a21~0 1) (= ~a20~0 1) (= ~a16~0 5)) [2018-12-02 15:17:18,176 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 15:17:18,176 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 15:17:18,176 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a21~0)|)) (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (and (= ~a8~0 15) (= ~a21~0 1) (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a20~0 1) (= ~a16~0 5)) (not (= 5 |old(~a16~0)|)) (not (= 8 ~a12~0)) (not (= 1 |old(~a17~0)|))) [2018-12-02 15:17:18,176 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2018-12-02 15:17:18,177 INFO L444 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (let ((.cse4 (= ~a21~0 1))) (let ((.cse0 (= ~a7~0 0)) (.cse9 (= 1 ~a20~0)) (.cse8 (not .cse4)) (.cse7 (= 1 ~a7~0)) (.cse11 (<= ~a17~0 0)) (.cse6 (not (= ~a8~0 13))) (.cse1 (not (= ~a16~0 0))) (.cse2 (not (= main_~input~0 0))) (.cse3 (not (= ~a8~0 0))) (.cse10 (not (= ~a16~0 6))) (.cse5 (<= ~a20~0 0))) (or (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0)) (not (= 1 |old(~a20~0)|)) (not (= 5 |old(~a16~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 (and .cse8 .cse9)) (and .cse0 .cse1 .cse2 .cse9 .cse3 .cse4) (and .cse9 (= 13 ~a8~0) (= 4 ~a16~0) (= 1 ~a21~0) (= 1 ~a17~0)) (and .cse8 .cse7 .cse10 .cse5) (and .cse7 (= |old(~a20~0)| ~a20~0) .cse11 .cse6) (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a17~0)|)) (not (= 15 |old(~a8~0)|)) (and .cse7 .cse10 .cse11 .cse6 .cse5) (and .cse1 .cse2 .cse3 .cse4 (not (= ~a17~0 1)) (= ~a7~0 |old(~a7~0)|) .cse10 .cse5)))) [2018-12-02 15:17:18,177 INFO L448 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2018-12-02 15:17:18,177 INFO L448 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2018-12-02 15:17:18,177 INFO L444 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse3 (= ~a21~0 1))) (let ((.cse6 (= 1 ~a20~0)) (.cse8 (not .cse3)) (.cse0 (= ~a7~0 0)) (.cse1 (not (= ~a16~0 0))) (.cse2 (not (= ~a8~0 0))) (.cse7 (= 1 ~a7~0)) (.cse10 (not (= ~a16~0 6))) (.cse9 (<= ~a17~0 0)) (.cse5 (not (= ~a8~0 13))) (.cse4 (<= ~a20~0 0))) (or (not (= 1 |old(~a20~0)|)) (not (= 5 |old(~a16~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 (= 13 ~a8~0) (= 4 ~a16~0) (= 1 ~a21~0) (= 1 ~a17~0)) (and .cse0 .cse1 .cse6 .cse2 .cse3) (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0)) (and .cse7 (and .cse8 .cse6)) (and .cse7 .cse6 .cse9 .cse5) (and .cse8 .cse7 .cse10 .cse4) (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a17~0)|)) (and .cse0 .cse1 (not (= main_~input~0 0)) .cse2 .cse10 .cse3 (not (= ~a17~0 1)) .cse4) (not (= 15 |old(~a8~0)|)) (and .cse7 .cse10 .cse9 .cse5 .cse4)))) [2018-12-02 15:17:18,177 INFO L448 ceAbstractionStarter]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2018-12-02 15:17:18,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:17:18 BoogieIcfgContainer [2018-12-02 15:17:18,186 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 15:17:18,186 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 15:17:18,186 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 15:17:18,186 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 15:17:18,187 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:16:57" (3/4) ... [2018-12-02 15:17:18,189 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 15:17:18,193 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 15:17:18,193 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-12-02 15:17:18,193 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 15:17:18,199 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-02 15:17:18,199 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-02 15:17:18,217 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((!(1 == \old(a20)) || !(5 == \old(a16))) || (((((a7 == 0 && !(a16 == 0)) && !(a8 == 0)) && a21 == 1) && a20 <= 0) && !(a8 == 13))) || ((((1 == a20 && 13 == a8) && 4 == a16) && 1 == a21) && 1 == a17)) || ((((a7 == 0 && !(a16 == 0)) && 1 == a20) && !(a8 == 0)) && a21 == 1)) || !(1 == \old(a21))) || !(8 == a12)) || (1 == a7 && !(a21 == 1) && 1 == a20)) || (((1 == a7 && 1 == a20) && a17 <= 0) && !(a8 == 13))) || (((!(a21 == 1) && 1 == a7) && !(a16 == 6)) && a20 <= 0)) || !(0 == \old(a7))) || !(1 == \old(a17))) || (((((((a7 == 0 && !(a16 == 0)) && !(input == 0)) && !(a8 == 0)) && !(a16 == 6)) && a21 == 1) && !(a17 == 1)) && a20 <= 0)) || !(15 == \old(a8))) || ((((1 == a7 && !(a16 == 6)) && a17 <= 0) && !(a8 == 13)) && a20 <= 0) [2018-12-02 15:17:18,264 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_da8c09fb-e7d3-4f71-a185-56116617ca64/bin-2019/utaipan/witness.graphml [2018-12-02 15:17:18,264 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 15:17:18,264 INFO L168 Benchmark]: Toolchain (without parser) took 21878.00 ms. Allocated memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: 1.4 GB). Free memory was 948.1 MB in the beginning and 830.5 MB in the end (delta: 117.6 MB). Peak memory consumption was 1.5 GB. Max. memory is 11.5 GB. [2018-12-02 15:17:18,265 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 15:17:18,265 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 90.7 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -123.4 MB). Peak memory consumption was 43.5 MB. Max. memory is 11.5 GB. [2018-12-02 15:17:18,265 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.41 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 15:17:18,265 INFO L168 Benchmark]: Boogie Preprocessor took 49.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2018-12-02 15:17:18,265 INFO L168 Benchmark]: RCFGBuilder took 601.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 960.6 MB in the end (delta: 103.9 MB). Peak memory consumption was 103.9 MB. Max. memory is 11.5 GB. [2018-12-02 15:17:18,265 INFO L168 Benchmark]: TraceAbstraction took 20780.32 ms. Allocated memory was 1.1 GB in the beginning and 2.4 GB in the end (delta: 1.3 GB). Free memory was 960.6 MB in the beginning and 860.7 MB in the end (delta: 99.9 MB). Peak memory consumption was 1.4 GB. Max. memory is 11.5 GB. [2018-12-02 15:17:18,266 INFO L168 Benchmark]: Witness Printer took 77.71 ms. Allocated memory is still 2.4 GB. Free memory was 860.7 MB in the beginning and 830.5 MB in the end (delta: 30.2 MB). Peak memory consumption was 30.2 MB. Max. memory is 11.5 GB. [2018-12-02 15:17:18,267 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 346.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 90.7 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -123.4 MB). Peak memory consumption was 43.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.41 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 49.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 601.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 960.6 MB in the end (delta: 103.9 MB). Peak memory consumption was 103.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 20780.32 ms. Allocated memory was 1.1 GB in the beginning and 2.4 GB in the end (delta: 1.3 GB). Free memory was 960.6 MB in the beginning and 860.7 MB in the end (delta: 99.9 MB). Peak memory consumption was 1.4 GB. Max. memory is 11.5 GB. * Witness Printer took 77.71 ms. Allocated memory is still 2.4 GB. Free memory was 860.7 MB in the beginning and 830.5 MB in the end (delta: 30.2 MB). Peak memory consumption was 30.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 515]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((((((!(1 == \old(a20)) || !(5 == \old(a16))) || (((((a7 == 0 && !(a16 == 0)) && !(a8 == 0)) && a21 == 1) && a20 <= 0) && !(a8 == 13))) || ((((1 == a20 && 13 == a8) && 4 == a16) && 1 == a21) && 1 == a17)) || ((((a7 == 0 && !(a16 == 0)) && 1 == a20) && !(a8 == 0)) && a21 == 1)) || !(1 == \old(a21))) || !(8 == a12)) || (1 == a7 && !(a21 == 1) && 1 == a20)) || (((1 == a7 && 1 == a20) && a17 <= 0) && !(a8 == 13))) || (((!(a21 == 1) && 1 == a7) && !(a16 == 6)) && a20 <= 0)) || !(0 == \old(a7))) || !(1 == \old(a17))) || (((((((a7 == 0 && !(a16 == 0)) && !(input == 0)) && !(a8 == 0)) && !(a16 == 6)) && a21 == 1) && !(a17 == 1)) && a20 <= 0)) || !(15 == \old(a8))) || ((((1 == a7 && !(a16 == 6)) && a17 <= 0) && !(a8 == 13)) && a20 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. SAFE Result, 20.7s OverallTime, 13 OverallIterations, 6 TraceHistogramMax, 12.2s AutomataDifference, 0.0s DeadEndRemovalTime, 3.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 709 SDtfs, 9443 SDslu, 725 SDs, 0 SdLazy, 10527 SolverSat, 1939 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.5s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 2879 GetRequests, 2709 SyntacticMatches, 12 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 804 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5740occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.6s AbstIntTime, 7 AbstIntIterations, 4 AbstIntStrong, 0.9973676001400763 AbsIntWeakeningRatio, 0.206266318537859 AbsIntAvgWeakeningVarsNumRemoved, 29.283289817232376 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 2280 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 339 PreInvPairs, 692 NumberOfFragments, 1018 HoareAnnotationTreeSize, 339 FomulaSimplifications, 41014 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 19607 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 3331 NumberOfCodeBlocks, 3267 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 4269 ConstructedInterpolants, 0 QuantifiedInterpolants, 2395055 SizeOfPredicates, 3 NumberOfNonLiveVariables, 2394 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 21 InterpolantComputations, 7 PerfectInterpolantSequences, 2793/3233 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...