./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label55_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9ce7388c-d636-420b-966b-eeeb65d28790/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9ce7388c-d636-420b-966b-eeeb65d28790/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9ce7388c-d636-420b-966b-eeeb65d28790/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9ce7388c-d636-420b-966b-eeeb65d28790/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label55_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9ce7388c-d636-420b-966b-eeeb65d28790/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9ce7388c-d636-420b-966b-eeeb65d28790/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 6dacd915ddcb2eb31881c9efdd8e6c888fdc7dc2 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 15:09:19,607 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:09:19,609 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:09:19,616 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:09:19,616 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:09:19,617 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:09:19,617 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:09:19,618 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:09:19,620 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:09:19,620 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:09:19,621 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:09:19,621 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:09:19,622 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:09:19,622 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:09:19,623 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:09:19,624 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:09:19,624 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:09:19,625 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:09:19,627 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:09:19,628 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:09:19,629 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:09:19,629 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:09:19,631 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:09:19,631 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:09:19,631 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:09:19,632 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:09:19,633 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:09:19,633 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:09:19,634 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:09:19,635 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:09:19,635 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:09:19,635 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:09:19,636 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:09:19,636 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:09:19,636 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:09:19,637 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:09:19,637 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9ce7388c-d636-420b-966b-eeeb65d28790/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 15:09:19,647 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:09:19,648 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:09:19,648 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:09:19,648 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 15:09:19,648 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 15:09:19,649 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 15:09:19,649 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 15:09:19,649 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 15:09:19,649 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 15:09:19,649 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 15:09:19,649 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 15:09:19,649 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 15:09:19,649 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 15:09:19,650 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:09:19,650 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:09:19,650 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:09:19,650 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:09:19,650 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:09:19,650 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:09:19,651 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:09:19,651 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:09:19,651 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:09:19,651 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:09:19,651 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:09:19,651 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:09:19,651 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:09:19,651 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:09:19,652 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:09:19,652 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:09:19,652 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:09:19,652 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:09:19,652 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:09:19,652 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:09:19,652 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 15:09:19,652 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:09:19,652 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 15:09:19,652 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 15:09:19,652 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_9ce7388c-d636-420b-966b-eeeb65d28790/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 -> 6dacd915ddcb2eb31881c9efdd8e6c888fdc7dc2 [2018-11-18 15:09:19,674 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:09:19,683 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:09:19,685 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:09:19,686 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:09:19,686 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:09:19,686 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9ce7388c-d636-420b-966b-eeeb65d28790/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem01_label55_true-unreach-call_false-termination.c [2018-11-18 15:09:19,722 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9ce7388c-d636-420b-966b-eeeb65d28790/bin-2019/utaipan/data/d41d50303/c2f4c325dec24ac0977571878c8ca992/FLAGcb731ed74 [2018-11-18 15:09:20,174 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:09:20,174 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9ce7388c-d636-420b-966b-eeeb65d28790/sv-benchmarks/c/eca-rers2012/Problem01_label55_true-unreach-call_false-termination.c [2018-11-18 15:09:20,183 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9ce7388c-d636-420b-966b-eeeb65d28790/bin-2019/utaipan/data/d41d50303/c2f4c325dec24ac0977571878c8ca992/FLAGcb731ed74 [2018-11-18 15:09:20,195 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9ce7388c-d636-420b-966b-eeeb65d28790/bin-2019/utaipan/data/d41d50303/c2f4c325dec24ac0977571878c8ca992 [2018-11-18 15:09:20,197 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:09:20,198 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:09:20,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:09:20,199 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:09:20,201 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:09:20,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:09:20" (1/1) ... [2018-11-18 15:09:20,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@411459c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:09:20, skipping insertion in model container [2018-11-18 15:09:20,203 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:09:20" (1/1) ... [2018-11-18 15:09:20,209 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:09:20,244 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:09:20,486 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:09:20,489 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:09:20,557 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:09:20,571 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:09:20,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:09:20 WrapperNode [2018-11-18 15:09:20,572 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:09:20,572 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:09:20,573 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:09:20,573 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:09:20,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:09:20" (1/1) ... [2018-11-18 15:09:20,645 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:09:20" (1/1) ... [2018-11-18 15:09:20,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:09:20,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:09:20,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:09:20,652 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:09:20,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:09:20" (1/1) ... [2018-11-18 15:09:20,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:09:20" (1/1) ... [2018-11-18 15:09:20,662 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:09:20" (1/1) ... [2018-11-18 15:09:20,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:09:20" (1/1) ... [2018-11-18 15:09:20,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:09:20" (1/1) ... [2018-11-18 15:09:20,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:09:20" (1/1) ... [2018-11-18 15:09:20,698 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:09:20" (1/1) ... [2018-11-18 15:09:20,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:09:20,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:09:20,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:09:20,704 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:09:20,704 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:09:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ce7388c-d636-420b-966b-eeeb65d28790/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:09:20,747 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 15:09:20,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:09:20,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:09:20,747 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-18 15:09:20,747 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-18 15:09:20,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:09:20,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:09:20,748 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:09:20,748 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:09:21,466 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:09:21,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:09:21 BoogieIcfgContainer [2018-11-18 15:09:21,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:09:21,467 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:09:21,467 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:09:21,469 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:09:21,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:09:20" (1/3) ... [2018-11-18 15:09:21,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7444ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:09:21, skipping insertion in model container [2018-11-18 15:09:21,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:09:20" (2/3) ... [2018-11-18 15:09:21,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7444ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:09:21, skipping insertion in model container [2018-11-18 15:09:21,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:09:21" (3/3) ... [2018-11-18 15:09:21,472 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label55_true-unreach-call_false-termination.c [2018-11-18 15:09:21,478 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:09:21,483 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 15:09:21,492 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 15:09:21,515 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:09:21,515 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 15:09:21,515 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:09:21,515 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:09:21,515 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:09:21,516 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:09:21,516 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:09:21,516 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:09:21,532 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-11-18 15:09:21,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-11-18 15:09:21,540 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:09:21,541 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:09:21,542 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:09:21,546 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:09:21,546 INFO L82 PathProgramCache]: Analyzing trace with hash 240629952, now seen corresponding path program 1 times [2018-11-18 15:09:21,548 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:09:21,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:09:21,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:09:21,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:09:21,578 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:09:21,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:09:21,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:09:21,869 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:09:21,869 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 15:09:21,869 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:09:21,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 15:09:21,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 15:09:21,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:09:21,888 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 3 states. [2018-11-18 15:09:22,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:09:22,395 INFO L93 Difference]: Finished difference Result 550 states and 941 transitions. [2018-11-18 15:09:22,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 15:09:22,396 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2018-11-18 15:09:22,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:09:22,407 INFO L225 Difference]: With dead ends: 550 [2018-11-18 15:09:22,407 INFO L226 Difference]: Without dead ends: 340 [2018-11-18 15:09:22,411 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:09:22,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2018-11-18 15:09:22,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2018-11-18 15:09:22,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-11-18 15:09:22,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 569 transitions. [2018-11-18 15:09:22,451 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 569 transitions. Word has length 118 [2018-11-18 15:09:22,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:09:22,452 INFO L480 AbstractCegarLoop]: Abstraction has 340 states and 569 transitions. [2018-11-18 15:09:22,452 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 15:09:22,452 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 569 transitions. [2018-11-18 15:09:22,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-11-18 15:09:22,456 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:09:22,456 INFO L375 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] [2018-11-18 15:09:22,460 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:09:22,460 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:09:22,461 INFO L82 PathProgramCache]: Analyzing trace with hash -617422281, now seen corresponding path program 1 times [2018-11-18 15:09:22,461 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:09:22,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:09:22,462 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:09:22,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:09:22,462 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:09:22,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:09:22,561 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:09:22,562 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:09:22,562 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 15:09:22,562 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:09:22,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 15:09:22,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 15:09:22,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 15:09:22,564 INFO L87 Difference]: Start difference. First operand 340 states and 569 transitions. Second operand 5 states. [2018-11-18 15:09:23,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:09:23,165 INFO L93 Difference]: Finished difference Result 1079 states and 1888 transitions. [2018-11-18 15:09:23,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 15:09:23,166 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 128 [2018-11-18 15:09:23,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:09:23,171 INFO L225 Difference]: With dead ends: 1079 [2018-11-18 15:09:23,171 INFO L226 Difference]: Without dead ends: 745 [2018-11-18 15:09:23,174 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-18 15:09:23,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2018-11-18 15:09:23,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 733. [2018-11-18 15:09:23,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2018-11-18 15:09:23,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1163 transitions. [2018-11-18 15:09:23,203 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1163 transitions. Word has length 128 [2018-11-18 15:09:23,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:09:23,203 INFO L480 AbstractCegarLoop]: Abstraction has 733 states and 1163 transitions. [2018-11-18 15:09:23,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 15:09:23,203 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1163 transitions. [2018-11-18 15:09:23,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-11-18 15:09:23,207 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:09:23,207 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:09:23,207 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:09:23,208 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:09:23,208 INFO L82 PathProgramCache]: Analyzing trace with hash 11496099, now seen corresponding path program 1 times [2018-11-18 15:09:23,208 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:09:23,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:09:23,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:09:23,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:09:23,209 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:09:23,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:09:23,378 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:09:23,379 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:09:23,379 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:09:23,379 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 139 with the following transitions: [2018-11-18 15:09:23,381 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [49], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [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], [581], [583], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 15:09:23,410 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:09:23,411 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:09:23,745 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 15:09:23,747 INFO L272 AbstractInterpreter]: Visited 118 different actions 118 times. Never merged. Never widened. Performed 1585 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1585 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 42 variables. [2018-11-18 15:09:23,753 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:09:23,753 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 15:09:23,968 INFO L227 lantSequenceWeakener]: Weakened 132 states. On average, predicates are now at 80.47% of their original sizes. [2018-11-18 15:09:23,969 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 15:09:24,009 INFO L415 sIntCurrentIteration]: We unified 137 AI predicates to 137 [2018-11-18 15:09:24,009 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 15:09:24,010 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 15:09:24,010 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2018-11-18 15:09:24,010 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:09:24,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 15:09:24,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 15:09:24,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 15:09:24,011 INFO L87 Difference]: Start difference. First operand 733 states and 1163 transitions. Second operand 6 states. [2018-11-18 15:09:26,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:09:26,542 INFO L93 Difference]: Finished difference Result 1598 states and 2531 transitions. [2018-11-18 15:09:26,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 15:09:26,543 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 138 [2018-11-18 15:09:26,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:09:26,545 INFO L225 Difference]: With dead ends: 1598 [2018-11-18 15:09:26,546 INFO L226 Difference]: Without dead ends: 871 [2018-11-18 15:09:26,547 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 138 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:09:26,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2018-11-18 15:09:26,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 869. [2018-11-18 15:09:26,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 869 states. [2018-11-18 15:09:26,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1308 transitions. [2018-11-18 15:09:26,566 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1308 transitions. Word has length 138 [2018-11-18 15:09:26,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:09:26,566 INFO L480 AbstractCegarLoop]: Abstraction has 869 states and 1308 transitions. [2018-11-18 15:09:26,566 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 15:09:26,566 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1308 transitions. [2018-11-18 15:09:26,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-11-18 15:09:26,568 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:09:26,568 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2018-11-18 15:09:26,569 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:09:26,569 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:09:26,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1720247914, now seen corresponding path program 1 times [2018-11-18 15:09:26,569 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:09:26,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:09:26,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:09:26,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:09:26,570 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:09:26,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:09:26,641 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:09:26,641 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:09:26,641 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:09:26,641 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 141 with the following transitions: [2018-11-18 15:09:26,642 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [10], [14], [17], [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], [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], [581], [583], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 15:09:26,645 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:09:26,646 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:09:26,821 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 15:09:26,821 INFO L272 AbstractInterpreter]: Visited 122 different actions 237 times. Merged at 4 different actions 4 times. Never widened. Performed 3263 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3263 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-11-18 15:09:26,828 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:09:26,828 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 15:09:26,969 INFO L227 lantSequenceWeakener]: Weakened 137 states. On average, predicates are now at 81.93% of their original sizes. [2018-11-18 15:09:26,969 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 15:09:27,019 INFO L415 sIntCurrentIteration]: We unified 139 AI predicates to 139 [2018-11-18 15:09:27,019 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 15:09:27,020 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 15:09:27,020 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-18 15:09:27,020 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:09:27,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 15:09:27,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 15:09:27,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 15:09:27,021 INFO L87 Difference]: Start difference. First operand 869 states and 1308 transitions. Second operand 10 states. [2018-11-18 15:09:31,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:09:31,361 INFO L93 Difference]: Finished difference Result 2801 states and 4437 transitions. [2018-11-18 15:09:31,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-18 15:09:31,361 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 140 [2018-11-18 15:09:31,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:09:31,366 INFO L225 Difference]: With dead ends: 2801 [2018-11-18 15:09:31,366 INFO L226 Difference]: Without dead ends: 2074 [2018-11-18 15:09:31,369 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 149 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2018-11-18 15:09:31,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2074 states. [2018-11-18 15:09:31,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2074 to 2043. [2018-11-18 15:09:31,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2043 states. [2018-11-18 15:09:31,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2043 states to 2043 states and 2623 transitions. [2018-11-18 15:09:31,404 INFO L78 Accepts]: Start accepts. Automaton has 2043 states and 2623 transitions. Word has length 140 [2018-11-18 15:09:31,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:09:31,404 INFO L480 AbstractCegarLoop]: Abstraction has 2043 states and 2623 transitions. [2018-11-18 15:09:31,404 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 15:09:31,404 INFO L276 IsEmpty]: Start isEmpty. Operand 2043 states and 2623 transitions. [2018-11-18 15:09:31,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-11-18 15:09:31,407 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:09:31,407 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:09:31,407 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:09:31,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:09:31,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1488530374, now seen corresponding path program 1 times [2018-11-18 15:09:31,407 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:09:31,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:09:31,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:09:31,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:09:31,408 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:09:31,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:09:31,519 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:09:31,520 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:09:31,520 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:09:31,520 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 148 with the following transitions: [2018-11-18 15:09:31,520 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [49], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [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], [581], [583], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 15:09:31,524 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:09:31,524 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:09:31,668 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 15:09:31,669 INFO L272 AbstractInterpreter]: Visited 122 different actions 238 times. Merged at 5 different actions 5 times. Never widened. Performed 3168 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3168 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-11-18 15:09:31,672 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:09:31,672 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 15:09:31,816 INFO L227 lantSequenceWeakener]: Weakened 144 states. On average, predicates are now at 81.91% of their original sizes. [2018-11-18 15:09:31,816 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 15:09:31,855 INFO L415 sIntCurrentIteration]: We unified 146 AI predicates to 146 [2018-11-18 15:09:31,855 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 15:09:31,855 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 15:09:31,856 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 15 [2018-11-18 15:09:31,856 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:09:31,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 15:09:31,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 15:09:31,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 15:09:31,857 INFO L87 Difference]: Start difference. First operand 2043 states and 2623 transitions. Second operand 10 states. [2018-11-18 15:09:34,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:09:34,670 INFO L93 Difference]: Finished difference Result 4085 states and 5313 transitions. [2018-11-18 15:09:34,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 15:09:34,670 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 147 [2018-11-18 15:09:34,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:09:34,678 INFO L225 Difference]: With dead ends: 4085 [2018-11-18 15:09:34,678 INFO L226 Difference]: Without dead ends: 2184 [2018-11-18 15:09:34,682 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 154 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-11-18 15:09:34,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2184 states. [2018-11-18 15:09:34,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2184 to 2181. [2018-11-18 15:09:34,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2181 states. [2018-11-18 15:09:34,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 2777 transitions. [2018-11-18 15:09:34,727 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 2777 transitions. Word has length 147 [2018-11-18 15:09:34,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:09:34,727 INFO L480 AbstractCegarLoop]: Abstraction has 2181 states and 2777 transitions. [2018-11-18 15:09:34,727 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 15:09:34,727 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 2777 transitions. [2018-11-18 15:09:34,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2018-11-18 15:09:34,731 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:09:34,731 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:09:34,731 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:09:34,732 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:09:34,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1640342349, now seen corresponding path program 1 times [2018-11-18 15:09:34,732 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:09:34,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:09:34,733 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:09:34,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:09:34,733 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:09:34,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:09:34,811 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 44 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-18 15:09:34,811 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:09:34,812 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:09:34,812 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 160 with the following transitions: [2018-11-18 15:09:34,812 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [49], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [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], [581], [583], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 15:09:34,816 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:09:34,816 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:09:35,091 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 15:09:35,092 INFO L272 AbstractInterpreter]: Visited 124 different actions 495 times. Merged at 8 different actions 34 times. Widened at 1 different actions 1 times. Performed 6957 root evaluator evaluations with a maximum evaluation depth of 3. Performed 6957 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 7 fixpoints after 2 different actions. Largest state had 42 variables. [2018-11-18 15:09:35,093 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:09:35,094 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 15:09:35,094 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:09:35,094 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ce7388c-d636-420b-966b-eeeb65d28790/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 15:09:35,101 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:09:35,101 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 15:09:35,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:09:35,160 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:09:35,236 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 42 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-18 15:09:35,236 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:09:35,321 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 44 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-18 15:09:35,338 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 15:09:35,338 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2018-11-18 15:09:35,338 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 15:09:35,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 15:09:35,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 15:09:35,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-11-18 15:09:35,339 INFO L87 Difference]: Start difference. First operand 2181 states and 2777 transitions. Second operand 8 states. [2018-11-18 15:09:37,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:09:37,075 INFO L93 Difference]: Finished difference Result 7194 states and 9811 transitions. [2018-11-18 15:09:37,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-18 15:09:37,075 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 159 [2018-11-18 15:09:37,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:09:37,082 INFO L225 Difference]: With dead ends: 7194 [2018-11-18 15:09:37,083 INFO L226 Difference]: Without dead ends: 2993 [2018-11-18 15:09:37,093 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=215, Invalid=777, Unknown=0, NotChecked=0, Total=992 [2018-11-18 15:09:37,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2993 states. [2018-11-18 15:09:37,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2993 to 2936. [2018-11-18 15:09:37,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2936 states. [2018-11-18 15:09:37,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2936 states to 2936 states and 3485 transitions. [2018-11-18 15:09:37,136 INFO L78 Accepts]: Start accepts. Automaton has 2936 states and 3485 transitions. Word has length 159 [2018-11-18 15:09:37,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:09:37,137 INFO L480 AbstractCegarLoop]: Abstraction has 2936 states and 3485 transitions. [2018-11-18 15:09:37,137 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 15:09:37,137 INFO L276 IsEmpty]: Start isEmpty. Operand 2936 states and 3485 transitions. [2018-11-18 15:09:37,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-11-18 15:09:37,141 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:09:37,141 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:09:37,141 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:09:37,141 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:09:37,141 INFO L82 PathProgramCache]: Analyzing trace with hash 867493849, now seen corresponding path program 1 times [2018-11-18 15:09:37,141 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:09:37,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:09:37,142 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:09:37,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:09:37,142 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:09:37,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:09:37,233 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 78 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-18 15:09:37,234 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:09:37,234 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:09:37,234 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 187 with the following transitions: [2018-11-18 15:09:37,234 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [10], [14], [18], [22], [26], [30], [33], [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], [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], [581], [583], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 15:09:37,236 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:09:37,237 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:09:37,339 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 15:09:37,339 INFO L272 AbstractInterpreter]: Visited 123 different actions 240 times. Merged at 5 different actions 5 times. Never widened. Performed 3238 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3238 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-11-18 15:09:37,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:09:37,344 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 15:09:37,476 INFO L227 lantSequenceWeakener]: Weakened 183 states. On average, predicates are now at 81.83% of their original sizes. [2018-11-18 15:09:37,476 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 15:09:37,521 INFO L415 sIntCurrentIteration]: We unified 185 AI predicates to 185 [2018-11-18 15:09:37,521 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 15:09:37,521 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 15:09:37,522 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-18 15:09:37,522 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:09:37,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 15:09:37,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 15:09:37,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 15:09:37,522 INFO L87 Difference]: Start difference. First operand 2936 states and 3485 transitions. Second operand 10 states. [2018-11-18 15:09:40,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:09:40,026 INFO L93 Difference]: Finished difference Result 6053 states and 7217 transitions. [2018-11-18 15:09:40,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-18 15:09:40,027 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 186 [2018-11-18 15:09:40,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:09:40,033 INFO L225 Difference]: With dead ends: 6053 [2018-11-18 15:09:40,034 INFO L226 Difference]: Without dead ends: 3397 [2018-11-18 15:09:40,039 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 194 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-11-18 15:09:40,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3397 states. [2018-11-18 15:09:40,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3397 to 3394. [2018-11-18 15:09:40,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3394 states. [2018-11-18 15:09:40,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3394 states to 3394 states and 3972 transitions. [2018-11-18 15:09:40,100 INFO L78 Accepts]: Start accepts. Automaton has 3394 states and 3972 transitions. Word has length 186 [2018-11-18 15:09:40,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:09:40,100 INFO L480 AbstractCegarLoop]: Abstraction has 3394 states and 3972 transitions. [2018-11-18 15:09:40,100 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 15:09:40,100 INFO L276 IsEmpty]: Start isEmpty. Operand 3394 states and 3972 transitions. [2018-11-18 15:09:40,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-11-18 15:09:40,106 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:09:40,106 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:09:40,107 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:09:40,107 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:09:40,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1566001412, now seen corresponding path program 1 times [2018-11-18 15:09:40,107 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:09:40,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:09:40,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:09:40,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:09:40,108 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:09:40,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:09:40,235 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 76 proven. 30 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-11-18 15:09:40,235 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:09:40,235 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:09:40,235 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 196 with the following transitions: [2018-11-18 15:09:40,236 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [9], [10], [14], [18], [22], [26], [30], [33], [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], [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], [581], [583], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 15:09:40,238 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:09:40,238 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:09:40,676 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 15:09:40,676 INFO L272 AbstractInterpreter]: Visited 125 different actions 499 times. Merged at 9 different actions 35 times. Never widened. Performed 7077 root evaluator evaluations with a maximum evaluation depth of 3. Performed 7077 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 8 fixpoints after 3 different actions. Largest state had 42 variables. [2018-11-18 15:09:40,677 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:09:40,677 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 15:09:40,677 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:09:40,677 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ce7388c-d636-420b-966b-eeeb65d28790/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 15:09:40,683 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:09:40,684 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 15:09:40,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:09:40,739 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:09:40,775 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 94 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-11-18 15:09:40,775 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:09:40,831 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 82 proven. 22 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-11-18 15:09:40,847 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 15:09:40,847 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2018-11-18 15:09:40,847 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 15:09:40,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 15:09:40,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 15:09:40,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-11-18 15:09:40,848 INFO L87 Difference]: Start difference. First operand 3394 states and 3972 transitions. Second operand 11 states. [2018-11-18 15:09:41,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:09:41,952 INFO L93 Difference]: Finished difference Result 11096 states and 13899 transitions. [2018-11-18 15:09:41,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-18 15:09:41,953 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 195 [2018-11-18 15:09:41,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:09:41,976 INFO L225 Difference]: With dead ends: 11096 [2018-11-18 15:09:41,976 INFO L226 Difference]: Without dead ends: 8302 [2018-11-18 15:09:41,988 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 393 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2018-11-18 15:09:41,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8302 states. [2018-11-18 15:09:42,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8302 to 8270. [2018-11-18 15:09:42,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8270 states. [2018-11-18 15:09:42,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8270 states to 8270 states and 9942 transitions. [2018-11-18 15:09:42,140 INFO L78 Accepts]: Start accepts. Automaton has 8270 states and 9942 transitions. Word has length 195 [2018-11-18 15:09:42,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:09:42,140 INFO L480 AbstractCegarLoop]: Abstraction has 8270 states and 9942 transitions. [2018-11-18 15:09:42,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 15:09:42,140 INFO L276 IsEmpty]: Start isEmpty. Operand 8270 states and 9942 transitions. [2018-11-18 15:09:42,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-11-18 15:09:42,151 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:09:42,152 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:09:42,152 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:09:42,152 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:09:42,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1448672338, now seen corresponding path program 2 times [2018-11-18 15:09:42,152 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:09:42,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:09:42,153 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:09:42,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:09:42,153 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:09:42,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:09:42,276 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 76 proven. 32 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-11-18 15:09:42,276 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:09:42,276 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:09:42,276 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-18 15:09:42,276 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-18 15:09:42,276 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:09:42,276 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ce7388c-d636-420b-966b-eeeb65d28790/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 15:09:42,286 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 15:09:42,286 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-18 15:09:42,336 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-11-18 15:09:42,336 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 15:09:42,340 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:09:42,392 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-11-18 15:09:42,392 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:09:42,456 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-11-18 15:09:42,481 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-18 15:09:42,481 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [9] total 10 [2018-11-18 15:09:42,481 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:09:42,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 15:09:42,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 15:09:42,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-11-18 15:09:42,482 INFO L87 Difference]: Start difference. First operand 8270 states and 9942 transitions. Second operand 3 states. [2018-11-18 15:09:42,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:09:42,850 INFO L93 Difference]: Finished difference Result 20308 states and 24800 transitions. [2018-11-18 15:09:42,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 15:09:42,851 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 195 [2018-11-18 15:09:42,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:09:42,876 INFO L225 Difference]: With dead ends: 20308 [2018-11-18 15:09:42,877 INFO L226 Difference]: Without dead ends: 12318 [2018-11-18 15:09:42,891 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 389 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-11-18 15:09:42,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12318 states. [2018-11-18 15:09:43,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12318 to 12126. [2018-11-18 15:09:43,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12126 states. [2018-11-18 15:09:43,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12126 states to 12126 states and 14427 transitions. [2018-11-18 15:09:43,032 INFO L78 Accepts]: Start accepts. Automaton has 12126 states and 14427 transitions. Word has length 195 [2018-11-18 15:09:43,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:09:43,032 INFO L480 AbstractCegarLoop]: Abstraction has 12126 states and 14427 transitions. [2018-11-18 15:09:43,032 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 15:09:43,032 INFO L276 IsEmpty]: Start isEmpty. Operand 12126 states and 14427 transitions. [2018-11-18 15:09:43,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-11-18 15:09:43,044 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:09:43,044 INFO L375 BasicCegarLoop]: trace histogram [5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:09:43,044 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:09:43,044 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:09:43,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1211800928, now seen corresponding path program 1 times [2018-11-18 15:09:43,044 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:09:43,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:09:43,045 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 15:09:43,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:09:43,045 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:09:43,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:09:43,148 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 119 proven. 52 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-18 15:09:43,148 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:09:43,148 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:09:43,148 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 226 with the following transitions: [2018-11-18 15:09:43,149 INFO L202 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], [93], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [173], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [581], [583], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 15:09:43,150 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:09:43,150 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:09:43,301 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 15:09:43,301 INFO L272 AbstractInterpreter]: Visited 124 different actions 364 times. Merged at 7 different actions 14 times. Never widened. Performed 4785 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4785 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 2 different actions. Largest state had 42 variables. [2018-11-18 15:09:43,304 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:09:43,304 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 15:09:43,528 INFO L227 lantSequenceWeakener]: Weakened 222 states. On average, predicates are now at 83.59% of their original sizes. [2018-11-18 15:09:43,528 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 15:09:43,567 INFO L415 sIntCurrentIteration]: We unified 224 AI predicates to 224 [2018-11-18 15:09:43,568 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 15:09:43,568 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 15:09:43,568 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2018-11-18 15:09:43,568 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:09:43,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 15:09:43,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 15:09:43,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 15:09:43,569 INFO L87 Difference]: Start difference. First operand 12126 states and 14427 transitions. Second operand 9 states. [2018-11-18 15:09:45,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:09:45,047 INFO L93 Difference]: Finished difference Result 24391 states and 29128 transitions. [2018-11-18 15:09:45,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 15:09:45,047 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 225 [2018-11-18 15:09:45,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:09:45,071 INFO L225 Difference]: With dead ends: 24391 [2018-11-18 15:09:45,071 INFO L226 Difference]: Without dead ends: 12819 [2018-11-18 15:09:45,084 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 230 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2018-11-18 15:09:45,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12819 states. [2018-11-18 15:09:45,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12819 to 12678. [2018-11-18 15:09:45,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12678 states. [2018-11-18 15:09:45,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12678 states to 12678 states and 15041 transitions. [2018-11-18 15:09:45,223 INFO L78 Accepts]: Start accepts. Automaton has 12678 states and 15041 transitions. Word has length 225 [2018-11-18 15:09:45,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:09:45,223 INFO L480 AbstractCegarLoop]: Abstraction has 12678 states and 15041 transitions. [2018-11-18 15:09:45,224 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 15:09:45,224 INFO L276 IsEmpty]: Start isEmpty. Operand 12678 states and 15041 transitions. [2018-11-18 15:09:45,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2018-11-18 15:09:45,236 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:09:45,236 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:09:45,237 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:09:45,237 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:09:45,237 INFO L82 PathProgramCache]: Analyzing trace with hash -634639250, now seen corresponding path program 1 times [2018-11-18 15:09:45,237 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:09:45,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:09:45,238 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:09:45,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:09:45,238 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:09:45,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:09:45,351 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 174 proven. 52 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-11-18 15:09:45,352 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:09:45,352 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:09:45,352 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 242 with the following transitions: [2018-11-18 15:09:45,352 INFO L202 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], [93], [94], [98], [102], [105], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [581], [583], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 15:09:45,354 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:09:45,354 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:09:45,584 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 15:09:45,584 INFO L272 AbstractInterpreter]: Visited 125 different actions 500 times. Merged at 9 different actions 36 times. Widened at 1 different actions 1 times. Performed 7098 root evaluator evaluations with a maximum evaluation depth of 3. Performed 7098 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 7 fixpoints after 3 different actions. Largest state had 42 variables. [2018-11-18 15:09:45,588 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:09:45,588 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 15:09:45,588 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:09:45,588 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ce7388c-d636-420b-966b-eeeb65d28790/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 15:09:45,594 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:09:45,594 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 15:09:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:09:45,648 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:09:45,699 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2018-11-18 15:09:45,699 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:09:45,783 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2018-11-18 15:09:45,799 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-18 15:09:45,799 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [9] total 10 [2018-11-18 15:09:45,799 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:09:45,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 15:09:45,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 15:09:45,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-11-18 15:09:45,800 INFO L87 Difference]: Start difference. First operand 12678 states and 15041 transitions. Second operand 3 states. [2018-11-18 15:09:46,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:09:46,143 INFO L93 Difference]: Finished difference Result 20967 states and 24881 transitions. [2018-11-18 15:09:46,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 15:09:46,144 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 241 [2018-11-18 15:09:46,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:09:46,145 INFO L225 Difference]: With dead ends: 20967 [2018-11-18 15:09:46,145 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 15:09:46,176 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 490 GetRequests, 480 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-11-18 15:09:46,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 15:09:46,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 15:09:46,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 15:09:46,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 15:09:46,177 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 241 [2018-11-18 15:09:46,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:09:46,177 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 15:09:46,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 15:09:46,177 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 15:09:46,177 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 15:09:46,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 15:09:46,358 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,470 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,483 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,513 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,514 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,519 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,520 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,521 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,522 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,523 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,524 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,531 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,533 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,535 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,543 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,550 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,551 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,554 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,558 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,565 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,571 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,576 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,580 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,591 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,594 WARN L180 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 109 [2018-11-18 15:09:46,615 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,616 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,618 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,618 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,619 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,620 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,621 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,621 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,627 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,628 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,629 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,630 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,632 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,635 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,639 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,640 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,641 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,643 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,644 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,649 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,651 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,653 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,655 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:46,660 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:09:48,015 WARN L180 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 285 DAG size of output: 110 [2018-11-18 15:09:48,217 WARN L180 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 59 [2018-11-18 15:09:48,371 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 62 [2018-11-18 15:09:48,372 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:09:48,372 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a7~0 |old(~a7~0)|) (= |old(~a8~0)| ~a8~0) (= |old(~a20~0)| ~a20~0)) [2018-11-18 15:09:48,372 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:09:48,372 INFO L425 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2018-11-18 15:09:48,373 INFO L425 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2018-11-18 15:09:48,373 INFO L425 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,373 INFO L425 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,373 INFO L425 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,373 INFO L425 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,373 INFO L425 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,373 INFO L425 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,373 INFO L425 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2018-11-18 15:09:48,373 INFO L425 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2018-11-18 15:09:48,373 INFO L425 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2018-11-18 15:09:48,373 INFO L425 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2018-11-18 15:09:48,373 INFO L425 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2018-11-18 15:09:48,373 INFO L425 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2018-11-18 15:09:48,373 INFO L425 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2018-11-18 15:09:48,373 INFO L425 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2018-11-18 15:09:48,373 INFO L425 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2018-11-18 15:09:48,373 INFO L425 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2018-11-18 15:09:48,373 INFO L425 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,373 INFO L425 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,373 INFO L425 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,373 INFO L425 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,374 INFO L425 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,374 INFO L425 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,374 INFO L425 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2018-11-18 15:09:48,374 INFO L425 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2018-11-18 15:09:48,374 INFO L425 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2018-11-18 15:09:48,374 INFO L425 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2018-11-18 15:09:48,374 INFO L425 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2018-11-18 15:09:48,374 INFO L425 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2018-11-18 15:09:48,374 INFO L425 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2018-11-18 15:09:48,374 INFO L425 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2018-11-18 15:09:48,374 INFO L425 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2018-11-18 15:09:48,374 INFO L425 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2018-11-18 15:09:48,374 INFO L425 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2018-11-18 15:09:48,374 INFO L425 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2018-11-18 15:09:48,374 INFO L425 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2018-11-18 15:09:48,374 INFO L425 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2018-11-18 15:09:48,374 INFO L425 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2018-11-18 15:09:48,374 INFO L425 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,374 INFO L425 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,374 INFO L425 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,374 INFO L425 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,374 INFO L425 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,374 INFO L425 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2018-11-18 15:09:48,374 INFO L425 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2018-11-18 15:09:48,374 INFO L425 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2018-11-18 15:09:48,375 INFO L425 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2018-11-18 15:09:48,375 INFO L425 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2018-11-18 15:09:48,375 INFO L425 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2018-11-18 15:09:48,375 INFO L425 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2018-11-18 15:09:48,375 INFO L425 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2018-11-18 15:09:48,375 INFO L425 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2018-11-18 15:09:48,375 INFO L425 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,375 INFO L425 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,375 INFO L425 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,375 INFO L425 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,375 INFO L425 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,375 INFO L425 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2018-11-18 15:09:48,375 INFO L425 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2018-11-18 15:09:48,375 INFO L425 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2018-11-18 15:09:48,375 INFO L425 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2018-11-18 15:09:48,375 INFO L425 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2018-11-18 15:09:48,375 INFO L425 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2018-11-18 15:09:48,375 INFO L425 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2018-11-18 15:09:48,375 INFO L425 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2018-11-18 15:09:48,375 INFO L425 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2018-11-18 15:09:48,376 INFO L425 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2018-11-18 15:09:48,376 INFO L425 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2018-11-18 15:09:48,376 INFO L425 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2018-11-18 15:09:48,376 INFO L425 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2018-11-18 15:09:48,376 INFO L425 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,376 INFO L425 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,376 INFO L425 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,376 INFO L425 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,376 INFO L425 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,376 INFO L425 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2018-11-18 15:09:48,376 INFO L425 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2018-11-18 15:09:48,376 INFO L425 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2018-11-18 15:09:48,376 INFO L425 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2018-11-18 15:09:48,376 INFO L425 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2018-11-18 15:09:48,376 INFO L425 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2018-11-18 15:09:48,377 INFO L425 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2018-11-18 15:09:48,377 INFO L425 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2018-11-18 15:09:48,377 INFO L425 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2018-11-18 15:09:48,377 INFO L425 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,377 INFO L425 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,377 INFO L425 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,377 INFO L425 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,377 INFO L425 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,377 INFO L425 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,377 INFO L425 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2018-11-18 15:09:48,377 INFO L425 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,377 INFO L425 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2018-11-18 15:09:48,377 INFO L425 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2018-11-18 15:09:48,377 INFO L425 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2018-11-18 15:09:48,377 INFO L425 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2018-11-18 15:09:48,377 INFO L425 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2018-11-18 15:09:48,377 INFO L425 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2018-11-18 15:09:48,377 INFO L425 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2018-11-18 15:09:48,377 INFO L425 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2018-11-18 15:09:48,377 INFO L425 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2018-11-18 15:09:48,377 INFO L425 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2018-11-18 15:09:48,377 INFO L425 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2018-11-18 15:09:48,377 INFO L425 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2018-11-18 15:09:48,378 INFO L425 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2018-11-18 15:09:48,378 INFO L425 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,378 INFO L425 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,378 INFO L425 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,378 INFO L425 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,378 INFO L425 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,378 INFO L425 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2018-11-18 15:09:48,378 INFO L425 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2018-11-18 15:09:48,378 INFO L425 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2018-11-18 15:09:48,378 INFO L425 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2018-11-18 15:09:48,378 INFO L425 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2018-11-18 15:09:48,378 INFO L425 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2018-11-18 15:09:48,378 INFO L425 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2018-11-18 15:09:48,379 INFO L425 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2018-11-18 15:09:48,379 INFO L425 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,379 INFO L425 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,379 INFO L425 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,379 INFO L425 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,379 INFO L425 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,379 INFO L425 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2018-11-18 15:09:48,379 INFO L425 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2018-11-18 15:09:48,379 INFO L425 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2018-11-18 15:09:48,379 INFO L425 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2018-11-18 15:09:48,379 INFO L425 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2018-11-18 15:09:48,379 INFO L425 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2018-11-18 15:09:48,379 INFO L425 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2018-11-18 15:09:48,379 INFO L425 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2018-11-18 15:09:48,379 INFO L425 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2018-11-18 15:09:48,380 INFO L425 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2018-11-18 15:09:48,380 INFO L421 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse25 (= ~a16~0 6)) (.cse17 (= 1 |old(~a20~0)|))) (let ((.cse19 (<= ~a17~0 0)) (.cse10 (< |old(~a8~0)| 15)) (.cse18 (= 1 ~a7~0)) (.cse2 (not (= 0 |old(~a7~0)|))) (.cse4 (not (= 15 |old(~a8~0)|))) (.cse5 (not (= 5 |old(~a16~0)|))) (.cse20 (< 0 |old(~a17~0)|)) (.cse22 (= ~a16~0 5)) (.cse3 (not (= 1 |old(~a21~0)|))) (.cse11 (not .cse17)) (.cse24 (= 0 |old(~a16~0)|)) (.cse6 (not (= 8 ~a12~0))) (.cse1 (= |calculate_output_#in~input| 0)) (.cse27 (= 0 |old(~a8~0)|)) (.cse7 (not (= 1 |old(~a17~0)|))) (.cse23 (not (= ~a16~0 0))) (.cse0 (= ~a17~0 1)) (.cse21 (= ~a21~0 1)) (.cse26 (= ~a20~0 1)) (.cse12 (not (= 1 |old(~a7~0)|))) (.cse15 (= |old(~a20~0)| ~a20~0)) (.cse13 (= 6 |old(~a16~0)|)) (.cse16 (< 13 |old(~a8~0)|)) (.cse8 (= ~a7~0 |old(~a7~0)|)) (.cse9 (= |old(~a8~0)| ~a8~0)) (.cse14 (not .cse25))) (and (or .cse0 .cse1 (or .cse2 .cse3 .cse4 (not (= 0 |old(~a20~0)|)) .cse5 .cse6 .cse7)) (or (and .cse8 .cse9) .cse10) (or (= ~a16~0 4) (or .cse3 .cse11 (not (= 4 |old(~a16~0)|)) (not (= 13 |old(~a8~0)|))) .cse6 .cse12 .cse1 .cse7) (or .cse13 .cse14 .cse12 .cse10) (or .cse15 .cse10) (or .cse13 .cse16 .cse15 .cse17) (or .cse16 (and .cse18 .cse9 .cse15 .cse19) (< |old(~a20~0)| 1) .cse12 .cse20) (or .cse2 .cse3 .cse6 .cse1 .cse17 .cse4 .cse5 (and .cse21 .cse22)) (or .cse2 .cse3 .cse22 .cse6 .cse1 .cse7 .cse4 .cse5) (or .cse13 (and .cse8 .cse9 .cse15 .cse14 .cse19) .cse20) (or .cse13 .cse14 .cse17 .cse10) (or .cse13 .cse2 .cse3 .cse6 .cse20 .cse1 (and .cse23 .cse21) .cse11 .cse4 .cse24) (or .cse1 (or (not .cse13) .cse2 .cse3 .cse11 .cse4 (not (= 0 |old(~a17~0)|)) .cse6) (and .cse21 (and (= ~a17~0 0) .cse25))) (or .cse19 .cse20 .cse10) (or .cse3 .cse11 .cse24 .cse6 (and .cse23 .cse18 .cse9 .cse0 .cse21 .cse26) .cse12 .cse1 .cse27 .cse7) (or .cse3 .cse16 .cse11 .cse24 .cse6 (and .cse8 .cse23 .cse9 .cse0 .cse21 .cse26) .cse1 .cse27 .cse7) (or (or .cse2 .cse3 .cse4 .cse5 .cse6 .cse1 .cse20) .cse22) (or .cse13 .cse3 .cse11 .cse24 .cse6 .cse1 .cse27 .cse7 (and .cse23 .cse0 .cse21 .cse8 .cse9 .cse14 .cse26)) (or .cse13 .cse16 .cse12 .cse15) (or .cse13 .cse16 (and .cse8 .cse9 .cse14))))) [2018-11-18 15:09:48,380 INFO L425 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2018-11-18 15:09:48,380 INFO L425 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,380 INFO L425 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,380 INFO L425 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,380 INFO L425 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,380 INFO L425 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2018-11-18 15:09:48,380 INFO L425 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,380 INFO L425 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,381 INFO L425 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2018-11-18 15:09:48,381 INFO L425 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2018-11-18 15:09:48,381 INFO L425 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2018-11-18 15:09:48,381 INFO L425 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2018-11-18 15:09:48,381 INFO L425 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2018-11-18 15:09:48,381 INFO L425 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2018-11-18 15:09:48,381 INFO L425 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2018-11-18 15:09:48,381 INFO L425 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2018-11-18 15:09:48,381 INFO L425 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2018-11-18 15:09:48,381 INFO L425 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2018-11-18 15:09:48,381 INFO L425 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2018-11-18 15:09:48,381 INFO L425 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2018-11-18 15:09:48,381 INFO L425 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,381 INFO L425 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,381 INFO L425 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,382 INFO L425 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,382 INFO L425 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,382 INFO L425 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2018-11-18 15:09:48,382 INFO L425 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,382 INFO L425 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2018-11-18 15:09:48,382 INFO L425 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2018-11-18 15:09:48,382 INFO L425 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2018-11-18 15:09:48,382 INFO L425 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2018-11-18 15:09:48,382 INFO L425 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2018-11-18 15:09:48,382 INFO L425 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2018-11-18 15:09:48,382 INFO L425 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2018-11-18 15:09:48,382 INFO L425 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2018-11-18 15:09:48,382 INFO L425 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2018-11-18 15:09:48,382 INFO L425 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2018-11-18 15:09:48,382 INFO L425 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2018-11-18 15:09:48,383 INFO L425 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 509) no Hoare annotation was computed. [2018-11-18 15:09:48,383 INFO L425 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2018-11-18 15:09:48,383 INFO L425 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2018-11-18 15:09:48,383 INFO L425 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2018-11-18 15:09:48,383 INFO L425 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,383 INFO L425 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,383 INFO L425 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,383 INFO L425 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,383 INFO L425 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,383 INFO L425 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:09:48,383 INFO L425 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2018-11-18 15:09:48,383 INFO L425 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2018-11-18 15:09:48,384 INFO L425 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2018-11-18 15:09:48,384 INFO L425 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2018-11-18 15:09:48,384 INFO L425 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2018-11-18 15:09:48,384 INFO L425 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2018-11-18 15:09:48,384 INFO L425 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2018-11-18 15:09:48,384 INFO L425 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2018-11-18 15:09:48,384 INFO L425 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2018-11-18 15:09:48,384 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2018-11-18 15:09:48,384 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:09:48,384 INFO L421 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)) [2018-11-18 15:09:48,384 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 15:09:48,384 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:09:48,384 INFO L421 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)|)) (not (= 5 |old(~a16~0)|)) (not (= 8 ~a12~0)) (and (= ~a17~0 1) (= ~a21~0 1) (= ~a7~0 |old(~a7~0)|) (= |old(~a8~0)| ~a8~0) (= ~a20~0 1) (= ~a16~0 5)) (not (= 1 |old(~a17~0)|))) [2018-11-18 15:09:48,385 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2018-11-18 15:09:48,385 INFO L421 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (let ((.cse1 (not (= ~a16~0 0))) (.cse2 (not (= main_~input~0 0))) (.cse3 (not (= ~a8~0 0))) (.cse4 (= ~a17~0 1)) (.cse5 (= ~a21~0 1)) (.cse6 (= ~a20~0 1)) (.cse7 (= 1 ~a7~0)) (.cse8 (<= ~a17~0 0)) (.cse0 (<= ~a8~0 13)) (.cse9 (not (= ~a16~0 6)))) (or (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (not (= 1 |old(~a20~0)|)) (and .cse0 .cse7 .cse8 (<= 1 ~a20~0)) (and .cse1 .cse2 .cse3 .cse9 .cse4 .cse5 .cse6) (not (= 5 |old(~a16~0)|)) (and .cse0 (not .cse6) .cse9) (and .cse1 .cse7 .cse2 .cse3 .cse4 .cse5 .cse6) (not (= 0 |old(~a7~0)|)) (and .cse0 .cse7 .cse9) (and .cse9 .cse8) (and .cse0 (= ~a7~0 |old(~a7~0)|) .cse9) (not (= 1 |old(~a17~0)|)) (not (= 15 |old(~a8~0)|)) (<= 15 ~a8~0))) [2018-11-18 15:09:48,385 INFO L425 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2018-11-18 15:09:48,385 INFO L425 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2018-11-18 15:09:48,385 INFO L425 ceAbstractionStarter]: For program point L583-1(lines 583 593) no Hoare annotation was computed. [2018-11-18 15:09:48,385 INFO L421 ceAbstractionStarter]: At program point L583-3(lines 583 593) the Hoare annotation is: (let ((.cse8 (<= ~a17~0 0)) (.cse6 (<= ~a8~0 13)) (.cse2 (not (= ~a16~0 6))) (.cse0 (not (= ~a16~0 0))) (.cse7 (= 1 ~a7~0)) (.cse1 (not (= ~a8~0 0))) (.cse3 (= ~a17~0 1)) (.cse4 (= ~a21~0 1)) (.cse5 (= ~a20~0 1))) (or (not (= 1 |old(~a21~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (not (= 8 ~a12~0)) (and .cse6 .cse0 .cse1 .cse3 .cse4 .cse5) (not (= 1 |old(~a20~0)|)) (and .cse6 .cse7 .cse8 (<= 1 ~a20~0)) (not (= 5 |old(~a16~0)|)) (and .cse6 (not .cse5) .cse2) (not (= 0 |old(~a7~0)|)) (and .cse6 .cse7 .cse2) (and .cse2 .cse8) (and .cse6 (= ~a7~0 |old(~a7~0)|) .cse2) (not (= 1 |old(~a17~0)|)) (and .cse0 .cse7 .cse1 .cse3 .cse4 .cse5) (not (= 15 |old(~a8~0)|)) (<= 15 ~a8~0))) [2018-11-18 15:09:48,385 INFO L425 ceAbstractionStarter]: For program point L583-4(lines 577 594) no Hoare annotation was computed. [2018-11-18 15:09:48,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 03:09:48 BoogieIcfgContainer [2018-11-18 15:09:48,395 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 15:09:48,396 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:09:48,396 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:09:48,396 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:09:48,396 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:09:21" (3/4) ... [2018-11-18 15:09:48,400 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 15:09:48,405 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 15:09:48,405 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-18 15:09:48,406 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 15:09:48,415 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 15:09:48,416 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 15:09:48,440 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((!(1 == \old(a21)) || (((((!(a16 == 0) && !(a8 == 0)) && !(a16 == 6)) && a17 == 1) && a21 == 1) && a20 == 1)) || !(8 == a12)) || (((((a8 <= 13 && !(a16 == 0)) && !(a8 == 0)) && a17 == 1) && a21 == 1) && a20 == 1)) || !(1 == \old(a20))) || (((a8 <= 13 && 1 == a7) && a17 <= 0) && 1 <= a20)) || !(5 == \old(a16))) || ((a8 <= 13 && !(a20 == 1)) && !(a16 == 6))) || !(0 == \old(a7))) || ((a8 <= 13 && 1 == a7) && !(a16 == 6))) || (!(a16 == 6) && a17 <= 0)) || ((a8 <= 13 && a7 == \old(a7)) && !(a16 == 6))) || !(1 == \old(a17))) || (((((!(a16 == 0) && 1 == a7) && !(a8 == 0)) && a17 == 1) && a21 == 1) && a20 == 1)) || !(15 == \old(a8))) || 15 <= a8 [2018-11-18 15:09:48,499 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9ce7388c-d636-420b-966b-eeeb65d28790/bin-2019/utaipan/witness.graphml [2018-11-18 15:09:48,499 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:09:48,499 INFO L168 Benchmark]: Toolchain (without parser) took 28301.95 ms. Allocated memory was 1.0 GB in the beginning and 2.8 GB in the end (delta: 1.7 GB). Free memory was 955.4 MB in the beginning and 1.8 GB in the end (delta: -832.3 MB). Peak memory consumption was 893.1 MB. Max. memory is 11.5 GB. [2018-11-18 15:09:48,500 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:09:48,500 INFO L168 Benchmark]: CACSL2BoogieTranslator took 373.65 ms. Allocated memory is still 1.0 GB. Free memory was 955.4 MB in the beginning and 917.7 MB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2018-11-18 15:09:48,500 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 917.7 MB in the beginning and 1.1 GB in the end (delta: -213.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:09:48,500 INFO L168 Benchmark]: Boogie Preprocessor took 51.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 11.5 GB. [2018-11-18 15:09:48,501 INFO L168 Benchmark]: RCFGBuilder took 763.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 102.8 MB). Peak memory consumption was 102.8 MB. Max. memory is 11.5 GB. [2018-11-18 15:09:48,501 INFO L168 Benchmark]: TraceAbstraction took 26928.26 ms. Allocated memory was 1.2 GB in the beginning and 2.8 GB in the end (delta: 1.6 GB). Free memory was 1.0 GB in the beginning and 1.8 GB in the end (delta: -800.3 MB). Peak memory consumption was 1.9 GB. Max. memory is 11.5 GB. [2018-11-18 15:09:48,501 INFO L168 Benchmark]: Witness Printer took 103.10 ms. Allocated memory is still 2.8 GB. Free memory was 1.8 GB in the beginning and 1.8 GB in the end (delta: 35.9 MB). Peak memory consumption was 35.9 MB. Max. memory is 11.5 GB. [2018-11-18 15:09:48,503 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 373.65 ms. Allocated memory is still 1.0 GB. Free memory was 955.4 MB in the beginning and 917.7 MB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 78.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 917.7 MB in the beginning and 1.1 GB in the end (delta: -213.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 763.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 102.8 MB). Peak memory consumption was 102.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 26928.26 ms. Allocated memory was 1.2 GB in the beginning and 2.8 GB in the end (delta: 1.6 GB). Free memory was 1.0 GB in the beginning and 1.8 GB in the end (delta: -800.3 MB). Peak memory consumption was 1.9 GB. Max. memory is 11.5 GB. * Witness Printer took 103.10 ms. Allocated memory is still 2.8 GB. Free memory was 1.8 GB in the beginning and 1.8 GB in the end (delta: 35.9 MB). Peak memory consumption was 35.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 509]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((((((((((((!(1 == \old(a21)) || (((((!(a16 == 0) && !(a8 == 0)) && !(a16 == 6)) && a17 == 1) && a21 == 1) && a20 == 1)) || !(8 == a12)) || (((((a8 <= 13 && !(a16 == 0)) && !(a8 == 0)) && a17 == 1) && a21 == 1) && a20 == 1)) || !(1 == \old(a20))) || (((a8 <= 13 && 1 == a7) && a17 <= 0) && 1 <= a20)) || !(5 == \old(a16))) || ((a8 <= 13 && !(a20 == 1)) && !(a16 == 6))) || !(0 == \old(a7))) || ((a8 <= 13 && 1 == a7) && !(a16 == 6))) || (!(a16 == 6) && a17 <= 0)) || ((a8 <= 13 && a7 == \old(a7)) && !(a16 == 6))) || !(1 == \old(a17))) || (((((!(a16 == 0) && 1 == a7) && !(a8 == 0)) && a17 == 1) && a21 == 1) && a20 == 1)) || !(15 == \old(a8))) || 15 <= a8 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. SAFE Result, 26.8s OverallTime, 11 OverallIterations, 5 TraceHistogramMax, 18.5s AutomataDifference, 0.0s DeadEndRemovalTime, 2.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 1656 SDtfs, 8300 SDslu, 2651 SDs, 0 SdLazy, 11936 SolverSat, 2174 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.7s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 2545 GetRequests, 2396 SyntacticMatches, 9 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12678occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.9s AbstIntTime, 8 AbstIntIterations, 5 AbstIntStrong, 0.9971882391998912 AbsIntWeakeningRatio, 0.2250300842358604 AbsIntAvgWeakeningVarsNumRemoved, 28.825511432009627 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 473 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 366 PreInvPairs, 588 NumberOfFragments, 970 HoareAnnotationTreeSize, 366 FomulaSimplifications, 11336 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 6210 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 2662 NumberOfCodeBlocks, 2595 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 3433 ConstructedInterpolants, 0 QuantifiedInterpolants, 1397877 SizeOfPredicates, 6 NumberOfNonLiveVariables, 2081 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 19 InterpolantComputations, 6 PerfectInterpolantSequences, 1843/2081 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...