./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label23_true-unreach-call.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_992451f4-89bb-4819-b71f-ade6d8475762/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_992451f4-89bb-4819-b71f-ade6d8475762/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_992451f4-89bb-4819-b71f-ade6d8475762/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_992451f4-89bb-4819-b71f-ade6d8475762/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label23_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_992451f4-89bb-4819-b71f-ade6d8475762/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_992451f4-89bb-4819-b71f-ade6d8475762/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 6e679f9bfc379fa4fbede70512fc16896a5c333e .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 13:08:22,547 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:08:22,548 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:08:22,554 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:08:22,555 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:08:22,555 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:08:22,556 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:08:22,557 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:08:22,558 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:08:22,559 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:08:22,559 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:08:22,560 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:08:22,560 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:08:22,561 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:08:22,561 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:08:22,562 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:08:22,562 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:08:22,563 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:08:22,564 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:08:22,565 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:08:22,566 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:08:22,567 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:08:22,569 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:08:22,569 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:08:22,569 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:08:22,570 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:08:22,570 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:08:22,571 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:08:22,571 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:08:22,572 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:08:22,572 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:08:22,572 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:08:22,572 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:08:22,573 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:08:22,573 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:08:22,573 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:08:22,574 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_992451f4-89bb-4819-b71f-ade6d8475762/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 13:08:22,581 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:08:22,581 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:08:22,582 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:08:22,582 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 13:08:22,582 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 13:08:22,582 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 13:08:22,582 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 13:08:22,583 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 13:08:22,583 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 13:08:22,583 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 13:08:22,583 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 13:08:22,583 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 13:08:22,583 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 13:08:22,584 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:08:22,584 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:08:22,584 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:08:22,584 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:08:22,584 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:08:22,585 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:08:22,585 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:08:22,585 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:08:22,585 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:08:22,585 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:08:22,585 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:08:22,585 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:08:22,586 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:08:22,586 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:08:22,586 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:08:22,586 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 13:08:22,586 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:08:22,586 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:08:22,587 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:08:22,587 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:08:22,587 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 13:08:22,587 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:08:22,587 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 13:08:22,587 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 13:08:22,587 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_992451f4-89bb-4819-b71f-ade6d8475762/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 -> 6e679f9bfc379fa4fbede70512fc16896a5c333e [2018-11-18 13:08:22,612 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:08:22,620 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:08:22,622 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:08:22,623 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:08:22,623 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:08:22,623 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_992451f4-89bb-4819-b71f-ade6d8475762/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem10_label23_true-unreach-call.c [2018-11-18 13:08:22,659 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_992451f4-89bb-4819-b71f-ade6d8475762/bin-2019/utaipan/data/76189502b/7b1cf5bf5b7f4df789401f8be60634a9/FLAG338ae47d6 [2018-11-18 13:08:23,132 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:08:23,132 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_992451f4-89bb-4819-b71f-ade6d8475762/sv-benchmarks/c/eca-rers2012/Problem10_label23_true-unreach-call.c [2018-11-18 13:08:23,143 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_992451f4-89bb-4819-b71f-ade6d8475762/bin-2019/utaipan/data/76189502b/7b1cf5bf5b7f4df789401f8be60634a9/FLAG338ae47d6 [2018-11-18 13:08:23,640 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_992451f4-89bb-4819-b71f-ade6d8475762/bin-2019/utaipan/data/76189502b/7b1cf5bf5b7f4df789401f8be60634a9 [2018-11-18 13:08:23,642 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:08:23,643 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:08:23,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:08:23,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:08:23,647 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:08:23,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:08:23" (1/1) ... [2018-11-18 13:08:23,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e020c8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:23, skipping insertion in model container [2018-11-18 13:08:23,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:08:23" (1/1) ... [2018-11-18 13:08:23,657 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:08:23,693 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:08:23,907 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:08:23,909 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:08:23,977 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:08:23,989 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:08:23,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:23 WrapperNode [2018-11-18 13:08:23,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:08:23,990 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:08:23,990 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:08:23,991 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:08:24,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:23" (1/1) ... [2018-11-18 13:08:24,053 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:23" (1/1) ... [2018-11-18 13:08:24,059 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:08:24,060 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:08:24,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:08:24,060 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:08:24,066 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:23" (1/1) ... [2018-11-18 13:08:24,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:23" (1/1) ... [2018-11-18 13:08:24,069 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:23" (1/1) ... [2018-11-18 13:08:24,069 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:23" (1/1) ... [2018-11-18 13:08:24,092 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:23" (1/1) ... [2018-11-18 13:08:24,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:23" (1/1) ... [2018-11-18 13:08:24,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:23" (1/1) ... [2018-11-18 13:08:24,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:08:24,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:08:24,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:08:24,111 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:08:24,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_992451f4-89bb-4819-b71f-ade6d8475762/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 13:08:24,164 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 13:08:24,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 13:08:24,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 13:08:24,164 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-18 13:08:24,165 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-18 13:08:24,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:08:24,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:08:24,165 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 13:08:24,165 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 13:08:25,085 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:08:25,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:08:25 BoogieIcfgContainer [2018-11-18 13:08:25,086 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:08:25,086 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 13:08:25,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 13:08:25,088 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 13:08:25,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:08:23" (1/3) ... [2018-11-18 13:08:25,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f65090f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:08:25, skipping insertion in model container [2018-11-18 13:08:25,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:23" (2/3) ... [2018-11-18 13:08:25,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f65090f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:08:25, skipping insertion in model container [2018-11-18 13:08:25,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:08:25" (3/3) ... [2018-11-18 13:08:25,092 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label23_true-unreach-call.c [2018-11-18 13:08:25,101 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 13:08:25,109 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 13:08:25,125 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 13:08:25,158 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 13:08:25,158 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 13:08:25,158 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 13:08:25,158 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:08:25,158 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:08:25,159 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 13:08:25,159 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:08:25,159 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 13:08:25,179 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-11-18 13:08:25,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-18 13:08:25,185 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:08:25,186 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] [2018-11-18 13:08:25,187 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:08:25,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:08:25,192 INFO L82 PathProgramCache]: Analyzing trace with hash 508483465, now seen corresponding path program 1 times [2018-11-18 13:08:25,193 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:08:25,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:08:25,230 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:08:25,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:08:25,230 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:08:25,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:08:25,440 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 13:08:25,442 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:08:25,443 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 13:08:25,443 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:08:25,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 13:08:25,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:08:25,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:08:25,464 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-11-18 13:08:26,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:08:26,151 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-11-18 13:08:26,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:08:26,154 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2018-11-18 13:08:26,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:08:26,165 INFO L225 Difference]: With dead ends: 574 [2018-11-18 13:08:26,165 INFO L226 Difference]: Without dead ends: 356 [2018-11-18 13:08:26,169 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 13:08:26,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-11-18 13:08:26,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-11-18 13:08:26,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-11-18 13:08:26,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 609 transitions. [2018-11-18 13:08:26,218 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 609 transitions. Word has length 53 [2018-11-18 13:08:26,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:08:26,219 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 609 transitions. [2018-11-18 13:08:26,219 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 13:08:26,219 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 609 transitions. [2018-11-18 13:08:26,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-11-18 13:08:26,224 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:08:26,225 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 13:08:26,225 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:08:26,226 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:08:26,226 INFO L82 PathProgramCache]: Analyzing trace with hash -1327667053, now seen corresponding path program 1 times [2018-11-18 13:08:26,226 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:08:26,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:08:26,227 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:08:26,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:08:26,228 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:08:26,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:08:26,378 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:08:26,378 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:08:26,378 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 13:08:26,378 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:08:26,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 13:08:26,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 13:08:26,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 13:08:26,381 INFO L87 Difference]: Start difference. First operand 356 states and 609 transitions. Second operand 5 states. [2018-11-18 13:08:27,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:08:27,329 INFO L93 Difference]: Finished difference Result 1289 states and 2315 transitions. [2018-11-18 13:08:27,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 13:08:27,330 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 136 [2018-11-18 13:08:27,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:08:27,334 INFO L225 Difference]: With dead ends: 1289 [2018-11-18 13:08:27,334 INFO L226 Difference]: Without dead ends: 939 [2018-11-18 13:08:27,337 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 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 13:08:27,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2018-11-18 13:08:27,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 926. [2018-11-18 13:08:27,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 926 states. [2018-11-18 13:08:27,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1444 transitions. [2018-11-18 13:08:27,373 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1444 transitions. Word has length 136 [2018-11-18 13:08:27,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:08:27,374 INFO L480 AbstractCegarLoop]: Abstraction has 926 states and 1444 transitions. [2018-11-18 13:08:27,374 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 13:08:27,374 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1444 transitions. [2018-11-18 13:08:27,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-11-18 13:08:27,378 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:08:27,378 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 13:08:27,378 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:08:27,378 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:08:27,378 INFO L82 PathProgramCache]: Analyzing trace with hash -734844493, now seen corresponding path program 1 times [2018-11-18 13:08:27,379 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:08:27,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:08:27,379 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:08:27,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:08:27,380 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:08:27,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:08:27,516 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:08:27,516 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:08:27,516 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 13:08:27,516 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:08:27,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 13:08:27,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 13:08:27,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 13:08:27,518 INFO L87 Difference]: Start difference. First operand 926 states and 1444 transitions. Second operand 6 states. [2018-11-18 13:08:28,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:08:28,310 INFO L93 Difference]: Finished difference Result 2537 states and 4091 transitions. [2018-11-18 13:08:28,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 13:08:28,310 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 152 [2018-11-18 13:08:28,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:08:28,316 INFO L225 Difference]: With dead ends: 2537 [2018-11-18 13:08:28,316 INFO L226 Difference]: Without dead ends: 1617 [2018-11-18 13:08:28,319 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-18 13:08:28,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2018-11-18 13:08:28,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1586. [2018-11-18 13:08:28,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1586 states. [2018-11-18 13:08:28,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 2321 transitions. [2018-11-18 13:08:28,352 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 2321 transitions. Word has length 152 [2018-11-18 13:08:28,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:08:28,352 INFO L480 AbstractCegarLoop]: Abstraction has 1586 states and 2321 transitions. [2018-11-18 13:08:28,352 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 13:08:28,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 2321 transitions. [2018-11-18 13:08:28,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-11-18 13:08:28,355 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:08:28,356 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:08:28,356 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:08:28,356 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:08:28,356 INFO L82 PathProgramCache]: Analyzing trace with hash -829584541, now seen corresponding path program 1 times [2018-11-18 13:08:28,356 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:08:28,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:08:28,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:08:28,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:08:28,357 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:08:28,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:08:28,480 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:08:28,481 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:08:28,481 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 13:08:28,481 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:08:28,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 13:08:28,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 13:08:28,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 13:08:28,482 INFO L87 Difference]: Start difference. First operand 1586 states and 2321 transitions. Second operand 6 states. [2018-11-18 13:08:28,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:08:28,988 INFO L93 Difference]: Finished difference Result 3508 states and 5326 transitions. [2018-11-18 13:08:28,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 13:08:28,990 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 176 [2018-11-18 13:08:28,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:08:28,997 INFO L225 Difference]: With dead ends: 3508 [2018-11-18 13:08:28,997 INFO L226 Difference]: Without dead ends: 1928 [2018-11-18 13:08:29,000 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-18 13:08:29,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2018-11-18 13:08:29,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1887. [2018-11-18 13:08:29,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1887 states. [2018-11-18 13:08:29,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1887 states to 1887 states and 2679 transitions. [2018-11-18 13:08:29,035 INFO L78 Accepts]: Start accepts. Automaton has 1887 states and 2679 transitions. Word has length 176 [2018-11-18 13:08:29,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:08:29,036 INFO L480 AbstractCegarLoop]: Abstraction has 1887 states and 2679 transitions. [2018-11-18 13:08:29,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 13:08:29,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1887 states and 2679 transitions. [2018-11-18 13:08:29,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2018-11-18 13:08:29,039 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:08:29,039 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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 13:08:29,040 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:08:29,040 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:08:29,040 INFO L82 PathProgramCache]: Analyzing trace with hash -642267359, now seen corresponding path program 1 times [2018-11-18 13:08:29,040 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:08:29,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:08:29,041 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:08:29,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:08:29,041 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:08:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:08:29,144 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 161 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:08:29,144 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:08:29,145 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:08:29,145 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 208 with the following transitions: [2018-11-18 13:08:29,146 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [325], [327], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [546], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 13:08:29,175 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:08:29,176 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:08:29,815 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 13:08:29,816 INFO L272 AbstractInterpreter]: Visited 92 different actions 352 times. Merged at 7 different actions 20 times. Never widened. Performed 3325 root evaluator evaluations with a maximum evaluation depth of 16. Performed 3325 inverse root evaluator evaluations with a maximum inverse evaluation depth of 16. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-18 13:08:29,841 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:08:29,843 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 13:08:29,843 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:08:29,843 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_992451f4-89bb-4819-b71f-ade6d8475762/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 13:08:29,855 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:08:29,856 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 13:08:29,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:08:29,939 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:08:30,032 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 161 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:08:30,032 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:08:30,167 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 161 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:08:30,185 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 13:08:30,186 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-18 13:08:30,186 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 13:08:30,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 13:08:30,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 13:08:30,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-11-18 13:08:30,187 INFO L87 Difference]: Start difference. First operand 1887 states and 2679 transitions. Second operand 9 states. [2018-11-18 13:08:31,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:08:31,764 INFO L93 Difference]: Finished difference Result 5487 states and 8964 transitions. [2018-11-18 13:08:31,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-18 13:08:31,764 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 207 [2018-11-18 13:08:31,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:08:31,781 INFO L225 Difference]: With dead ends: 5487 [2018-11-18 13:08:31,781 INFO L226 Difference]: Without dead ends: 3606 [2018-11-18 13:08:31,794 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 417 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=128, Invalid=252, Unknown=0, NotChecked=0, Total=380 [2018-11-18 13:08:31,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3606 states. [2018-11-18 13:08:31,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3606 to 3518. [2018-11-18 13:08:31,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3518 states. [2018-11-18 13:08:31,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3518 states to 3518 states and 4925 transitions. [2018-11-18 13:08:31,867 INFO L78 Accepts]: Start accepts. Automaton has 3518 states and 4925 transitions. Word has length 207 [2018-11-18 13:08:31,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:08:31,868 INFO L480 AbstractCegarLoop]: Abstraction has 3518 states and 4925 transitions. [2018-11-18 13:08:31,868 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 13:08:31,868 INFO L276 IsEmpty]: Start isEmpty. Operand 3518 states and 4925 transitions. [2018-11-18 13:08:31,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-11-18 13:08:31,876 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:08:31,877 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:08:31,877 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:08:31,877 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:08:31,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1729382700, now seen corresponding path program 1 times [2018-11-18 13:08:31,877 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:08:31,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:08:31,878 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:08:31,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:08:31,878 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:08:31,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:08:31,996 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 168 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:08:31,997 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:08:31,997 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:08:31,997 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 215 with the following transitions: [2018-11-18 13:08:31,997 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [325], [327], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [526], [527], [531], [535], [539], [543], [546], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 13:08:32,000 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:08:32,000 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:08:32,101 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 13:08:32,102 INFO L272 AbstractInterpreter]: Visited 88 different actions 88 times. Never merged. Never widened. Performed 770 root evaluator evaluations with a maximum evaluation depth of 14. Performed 770 inverse root evaluator evaluations with a maximum inverse evaluation depth of 14. Never found a fixpoint. Largest state had 24 variables. [2018-11-18 13:08:32,110 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:08:32,110 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 13:08:32,367 INFO L227 lantSequenceWeakener]: Weakened 205 states. On average, predicates are now at 73.45% of their original sizes. [2018-11-18 13:08:32,367 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 13:08:32,409 INFO L415 sIntCurrentIteration]: We unified 213 AI predicates to 213 [2018-11-18 13:08:32,409 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 13:08:32,409 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 13:08:32,410 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-11-18 13:08:32,410 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:08:32,410 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 13:08:32,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 13:08:32,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 13:08:32,410 INFO L87 Difference]: Start difference. First operand 3518 states and 4925 transitions. Second operand 6 states. [2018-11-18 13:08:39,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:08:39,007 INFO L93 Difference]: Finished difference Result 7176 states and 10042 transitions. [2018-11-18 13:08:39,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 13:08:39,007 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 214 [2018-11-18 13:08:39,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:08:39,025 INFO L225 Difference]: With dead ends: 7176 [2018-11-18 13:08:39,025 INFO L226 Difference]: Without dead ends: 3664 [2018-11-18 13:08:39,043 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 214 GetRequests, 209 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 13:08:39,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3664 states. [2018-11-18 13:08:39,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3664 to 3662. [2018-11-18 13:08:39,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3662 states. [2018-11-18 13:08:39,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3662 states to 3662 states and 5076 transitions. [2018-11-18 13:08:39,138 INFO L78 Accepts]: Start accepts. Automaton has 3662 states and 5076 transitions. Word has length 214 [2018-11-18 13:08:39,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:08:39,138 INFO L480 AbstractCegarLoop]: Abstraction has 3662 states and 5076 transitions. [2018-11-18 13:08:39,138 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 13:08:39,138 INFO L276 IsEmpty]: Start isEmpty. Operand 3662 states and 5076 transitions. [2018-11-18 13:08:39,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2018-11-18 13:08:39,153 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:08:39,153 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:08:39,153 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:08:39,153 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:08:39,153 INFO L82 PathProgramCache]: Analyzing trace with hash 66252833, now seen corresponding path program 1 times [2018-11-18 13:08:39,153 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:08:39,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:08:39,154 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:08:39,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:08:39,154 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:08:39,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:08:39,402 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 144 proven. 154 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-11-18 13:08:39,402 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:08:39,402 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:08:39,402 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 295 with the following transitions: [2018-11-18 13:08:39,403 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [325], [327], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [526], [527], [531], [534], [535], [539], [543], [546], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 13:08:39,404 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:08:39,405 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:08:39,719 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 13:08:39,719 INFO L272 AbstractInterpreter]: Visited 93 different actions 280 times. Merged at 8 different actions 24 times. Never widened. Performed 2652 root evaluator evaluations with a maximum evaluation depth of 16. Performed 2652 inverse root evaluator evaluations with a maximum inverse evaluation depth of 16. Found 5 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-18 13:08:39,733 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:08:39,733 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 13:08:39,734 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:08:39,734 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_992451f4-89bb-4819-b71f-ade6d8475762/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 13:08:39,739 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:08:39,739 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 13:08:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:08:39,790 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:08:39,892 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 325 proven. 2 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2018-11-18 13:08:39,892 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:08:39,985 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 219 proven. 77 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-11-18 13:08:40,002 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 13:08:40,002 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2018-11-18 13:08:40,002 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 13:08:40,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 13:08:40,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 13:08:40,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-11-18 13:08:40,003 INFO L87 Difference]: Start difference. First operand 3662 states and 5076 transitions. Second operand 11 states. [2018-11-18 13:08:42,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:08:42,021 INFO L93 Difference]: Finished difference Result 10630 states and 15967 transitions. [2018-11-18 13:08:42,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-18 13:08:42,022 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 294 [2018-11-18 13:08:42,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:08:42,037 INFO L225 Difference]: With dead ends: 10630 [2018-11-18 13:08:42,037 INFO L226 Difference]: Without dead ends: 2890 [2018-11-18 13:08:42,109 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 622 GetRequests, 595 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2018-11-18 13:08:42,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2890 states. [2018-11-18 13:08:42,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2890 to 2353. [2018-11-18 13:08:42,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2353 states. [2018-11-18 13:08:42,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2353 states to 2353 states and 2955 transitions. [2018-11-18 13:08:42,205 INFO L78 Accepts]: Start accepts. Automaton has 2353 states and 2955 transitions. Word has length 294 [2018-11-18 13:08:42,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:08:42,206 INFO L480 AbstractCegarLoop]: Abstraction has 2353 states and 2955 transitions. [2018-11-18 13:08:42,206 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 13:08:42,206 INFO L276 IsEmpty]: Start isEmpty. Operand 2353 states and 2955 transitions. [2018-11-18 13:08:42,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2018-11-18 13:08:42,214 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:08:42,215 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-18 13:08:42,215 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:08:42,215 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:08:42,215 INFO L82 PathProgramCache]: Analyzing trace with hash 812385817, now seen corresponding path program 1 times [2018-11-18 13:08:42,215 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:08:42,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:08:42,216 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:08:42,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:08:42,217 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:08:42,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:08:42,519 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 300 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-11-18 13:08:42,520 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:08:42,520 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:08:42,520 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 331 with the following transitions: [2018-11-18 13:08:42,520 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [325], [327], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [526], [527], [531], [535], [539], [543], [546], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 13:08:42,524 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:08:42,524 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:08:43,030 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 13:08:43,030 INFO L272 AbstractInterpreter]: Visited 126 different actions 375 times. Merged at 8 different actions 21 times. Never widened. Performed 3882 root evaluator evaluations with a maximum evaluation depth of 16. Performed 3882 inverse root evaluator evaluations with a maximum inverse evaluation depth of 16. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 13:08:43,042 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:08:43,042 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 13:08:43,042 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:08:43,042 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_992451f4-89bb-4819-b71f-ade6d8475762/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 13:08:43,054 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:08:43,055 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 13:08:43,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:08:43,114 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:08:43,220 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 300 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-11-18 13:08:43,220 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:08:43,339 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 300 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-11-18 13:08:43,358 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 13:08:43,358 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-11-18 13:08:43,358 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 13:08:43,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 13:08:43,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 13:08:43,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-18 13:08:43,359 INFO L87 Difference]: Start difference. First operand 2353 states and 2955 transitions. Second operand 9 states. [2018-11-18 13:08:44,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:08:44,170 INFO L93 Difference]: Finished difference Result 4433 states and 5630 transitions. [2018-11-18 13:08:44,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 13:08:44,171 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 330 [2018-11-18 13:08:44,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:08:44,180 INFO L225 Difference]: With dead ends: 4433 [2018-11-18 13:08:44,180 INFO L226 Difference]: Without dead ends: 2230 [2018-11-18 13:08:44,185 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 679 GetRequests, 662 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2018-11-18 13:08:44,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2230 states. [2018-11-18 13:08:44,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2230 to 2140. [2018-11-18 13:08:44,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2140 states. [2018-11-18 13:08:44,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2453 transitions. [2018-11-18 13:08:44,234 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2453 transitions. Word has length 330 [2018-11-18 13:08:44,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:08:44,235 INFO L480 AbstractCegarLoop]: Abstraction has 2140 states and 2453 transitions. [2018-11-18 13:08:44,235 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 13:08:44,235 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2453 transitions. [2018-11-18 13:08:44,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2018-11-18 13:08:44,241 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:08:44,241 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2018-11-18 13:08:44,241 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:08:44,242 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:08:44,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1037984411, now seen corresponding path program 1 times [2018-11-18 13:08:44,242 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:08:44,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:08:44,242 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:08:44,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:08:44,243 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:08:44,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:08:44,871 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 229 proven. 158 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 13:08:44,871 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:08:44,871 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:08:44,871 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 341 with the following transitions: [2018-11-18 13:08:44,872 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [325], [327], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [546], [547], [551], [555], [559], [563], [566], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 13:08:44,874 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:08:44,874 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:08:46,436 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 13:08:46,436 INFO L272 AbstractInterpreter]: Visited 126 different actions 376 times. Merged at 8 different actions 22 times. Never widened. Performed 3875 root evaluator evaluations with a maximum evaluation depth of 20. Performed 3875 inverse root evaluator evaluations with a maximum inverse evaluation depth of 20. Found 5 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-18 13:08:46,437 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:08:46,437 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 13:08:46,438 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:08:46,438 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_992451f4-89bb-4819-b71f-ade6d8475762/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 13:08:46,452 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:08:46,452 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 13:08:46,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:08:46,516 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:09:06,410 WARN L180 SmtUtils]: Spent 19.82 s on a formula simplification. DAG size of input: 95 DAG size of output: 53 [2018-11-18 13:09:06,653 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 341 proven. 4 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2018-11-18 13:09:06,653 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:09:17,365 WARN L180 SmtUtils]: Spent 10.35 s on a formula simplification. DAG size of input: 384 DAG size of output: 22 [2018-11-18 13:09:17,440 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-11-18 13:09:17,490 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 26 [2018-11-18 13:09:17,625 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:17,651 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:17,681 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:17,728 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:17,765 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:17,794 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:17,835 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:17,879 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:17,919 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:17,948 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:17,983 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:18,012 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:18,039 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:18,065 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:18,092 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:18,136 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:18,181 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:18,223 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:18,268 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:18,306 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:18,358 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:18,392 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:18,430 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:18,482 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:18,532 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:18,570 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:18,614 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:18,652 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:18,691 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:18,724 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:18,757 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:18,793 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:18,827 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:18,871 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:18,918 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:18,972 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:19,009 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:19,049 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:19,089 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:19,124 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:19,167 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:19,204 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:19,247 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:19,289 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:19,323 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:19,355 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:19,394 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:19,428 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:19,462 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:19,498 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:19,540 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:19,581 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:19,615 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:19,650 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:19,705 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:19,739 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:19,770 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:19,801 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:19,841 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:19,875 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:19,909 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:19,940 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:19,982 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:20,019 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:20,057 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:20,092 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:20,125 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:20,164 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:20,197 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:20,226 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:20,263 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:20,294 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:20,327 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:20,362 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:20,400 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:20,434 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:20,485 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:20,523 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:20,572 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:20,610 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:20,645 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:20,676 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:20,707 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:20,737 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:20,766 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:20,801 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:20,836 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:20,872 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:20,908 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:20,941 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:20,982 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:21,015 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:21,063 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:21,098 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:21,131 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:21,178 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:21,211 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:21,244 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:21,306 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:21,348 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:21,388 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:21,423 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:21,462 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:21,501 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:21,536 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:21,572 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:21,606 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:21,640 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:09:22,094 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 148 proven. 239 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 13:09:22,110 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 13:09:22,110 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 25 [2018-11-18 13:09:22,110 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 13:09:22,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-18 13:09:22,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-18 13:09:22,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=493, Unknown=0, NotChecked=0, Total=600 [2018-11-18 13:09:22,112 INFO L87 Difference]: Start difference. First operand 2140 states and 2453 transitions. Second operand 18 states. [2018-11-18 13:09:45,114 WARN L180 SmtUtils]: Spent 20.67 s on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2018-11-18 13:09:47,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:09:47,266 INFO L93 Difference]: Finished difference Result 6389 states and 7770 transitions. [2018-11-18 13:09:47,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-11-18 13:09:47,267 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 340 [2018-11-18 13:09:47,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:09:47,280 INFO L225 Difference]: With dead ends: 6389 [2018-11-18 13:09:47,280 INFO L226 Difference]: Without dead ends: 3959 [2018-11-18 13:09:47,285 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 761 GetRequests, 591 SyntacticMatches, 111 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3396 ImplicationChecksByTransitivity, 56.5s TimeCoverageRelationStatistics Valid=800, Invalid=2860, Unknown=0, NotChecked=0, Total=3660 [2018-11-18 13:09:47,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3959 states. [2018-11-18 13:09:47,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3959 to 2774. [2018-11-18 13:09:47,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2774 states. [2018-11-18 13:09:47,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2774 states to 2774 states and 3255 transitions. [2018-11-18 13:09:47,355 INFO L78 Accepts]: Start accepts. Automaton has 2774 states and 3255 transitions. Word has length 340 [2018-11-18 13:09:47,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:09:47,356 INFO L480 AbstractCegarLoop]: Abstraction has 2774 states and 3255 transitions. [2018-11-18 13:09:47,356 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-18 13:09:47,356 INFO L276 IsEmpty]: Start isEmpty. Operand 2774 states and 3255 transitions. [2018-11-18 13:09:47,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2018-11-18 13:09:47,363 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:09:47,363 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:09:47,363 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:09:47,364 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:09:47,364 INFO L82 PathProgramCache]: Analyzing trace with hash 935343302, now seen corresponding path program 1 times [2018-11-18 13:09:47,364 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:09:47,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:09:47,365 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:09:47,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:09:47,365 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:09:47,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:09:47,559 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2018-11-18 13:09:47,559 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:09:47,559 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 13:09:47,559 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:09:47,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 13:09:47,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:09:47,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:09:47,560 INFO L87 Difference]: Start difference. First operand 2774 states and 3255 transitions. Second operand 3 states. [2018-11-18 13:09:48,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:09:48,056 INFO L93 Difference]: Finished difference Result 6131 states and 7305 transitions. [2018-11-18 13:09:48,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:09:48,057 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 359 [2018-11-18 13:09:48,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:09:48,058 INFO L225 Difference]: With dead ends: 6131 [2018-11-18 13:09:48,058 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 13:09:48,063 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:09:48,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 13:09:48,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 13:09:48,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 13:09:48,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 13:09:48,064 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 359 [2018-11-18 13:09:48,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:09:48,064 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 13:09:48,064 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 13:09:48,064 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 13:09:48,064 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 13:09:48,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 13:09:48,231 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,234 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,235 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,240 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,243 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,244 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,250 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,251 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,273 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,311 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,312 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,316 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,325 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,327 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,328 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,346 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,368 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,375 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,376 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,403 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,419 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,428 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,466 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,491 WARN L180 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 303 DAG size of output: 247 [2018-11-18 13:09:48,516 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,519 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,519 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,523 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,526 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,527 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,531 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,532 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,551 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,587 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,587 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,592 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,600 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,603 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,604 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,620 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,641 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,647 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,649 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,675 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,690 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,700 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,736 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:09:48,760 WARN L180 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 244 [2018-11-18 13:09:49,341 WARN L180 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 54 [2018-11-18 13:09:49,807 WARN L180 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 49 [2018-11-18 13:09:50,269 WARN L180 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 49 [2018-11-18 13:09:50,270 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 13:09:50,270 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a19~0 |old(~a19~0)|) (= |old(~a10~0)| ~a10~0) (= ~a1~0 |old(~a1~0)|)) [2018-11-18 13:09:50,270 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:09:50,270 INFO L425 ceAbstractionStarter]: For program point L465(lines 465 572) no Hoare annotation was computed. [2018-11-18 13:09:50,270 INFO L425 ceAbstractionStarter]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,271 INFO L425 ceAbstractionStarter]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,271 INFO L425 ceAbstractionStarter]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,271 INFO L425 ceAbstractionStarter]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,271 INFO L425 ceAbstractionStarter]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,271 INFO L425 ceAbstractionStarter]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,271 INFO L425 ceAbstractionStarter]: For program point L499(lines 499 572) no Hoare annotation was computed. [2018-11-18 13:09:50,271 INFO L425 ceAbstractionStarter]: For program point L301(lines 301 572) no Hoare annotation was computed. [2018-11-18 13:09:50,271 INFO L425 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-11-18 13:09:50,271 INFO L425 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-11-18 13:09:50,271 INFO L425 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-11-18 13:09:50,271 INFO L425 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-11-18 13:09:50,271 INFO L425 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-11-18 13:09:50,271 INFO L425 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-11-18 13:09:50,271 INFO L425 ceAbstractionStarter]: For program point L335(lines 335 572) no Hoare annotation was computed. [2018-11-18 13:09:50,271 INFO L425 ceAbstractionStarter]: For program point L236(lines 236 572) no Hoare annotation was computed. [2018-11-18 13:09:50,271 INFO L425 ceAbstractionStarter]: For program point L534(lines 534 572) no Hoare annotation was computed. [2018-11-18 13:09:50,271 INFO L425 ceAbstractionStarter]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,271 INFO L425 ceAbstractionStarter]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,271 INFO L425 ceAbstractionStarter]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,271 INFO L425 ceAbstractionStarter]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,271 INFO L425 ceAbstractionStarter]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,271 INFO L425 ceAbstractionStarter]: For program point L436(lines 436 572) no Hoare annotation was computed. [2018-11-18 13:09:50,271 INFO L425 ceAbstractionStarter]: For program point L403(lines 403 572) no Hoare annotation was computed. [2018-11-18 13:09:50,271 INFO L425 ceAbstractionStarter]: For program point L370(lines 370 572) no Hoare annotation was computed. [2018-11-18 13:09:50,271 INFO L425 ceAbstractionStarter]: For program point L271(lines 271 572) no Hoare annotation was computed. [2018-11-18 13:09:50,272 INFO L425 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-11-18 13:09:50,272 INFO L425 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-11-18 13:09:50,272 INFO L425 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-11-18 13:09:50,272 INFO L425 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-11-18 13:09:50,272 INFO L425 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-11-18 13:09:50,272 INFO L425 ceAbstractionStarter]: For program point L569(lines 569 572) no Hoare annotation was computed. [2018-11-18 13:09:50,272 INFO L425 ceAbstractionStarter]: For program point L239(lines 239 572) no Hoare annotation was computed. [2018-11-18 13:09:50,272 INFO L425 ceAbstractionStarter]: For program point L504(lines 504 572) no Hoare annotation was computed. [2018-11-18 13:09:50,272 INFO L425 ceAbstractionStarter]: For program point L471(lines 471 572) no Hoare annotation was computed. [2018-11-18 13:09:50,272 INFO L425 ceAbstractionStarter]: For program point L306(lines 306 572) no Hoare annotation was computed. [2018-11-18 13:09:50,272 INFO L425 ceAbstractionStarter]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,272 INFO L425 ceAbstractionStarter]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,272 INFO L425 ceAbstractionStarter]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,272 INFO L425 ceAbstractionStarter]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,272 INFO L425 ceAbstractionStarter]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,272 INFO L425 ceAbstractionStarter]: For program point L340(lines 340 572) no Hoare annotation was computed. [2018-11-18 13:09:50,272 INFO L425 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-11-18 13:09:50,272 INFO L425 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-11-18 13:09:50,272 INFO L425 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-11-18 13:09:50,272 INFO L425 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-11-18 13:09:50,272 INFO L425 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-18 13:09:50,272 INFO L425 ceAbstractionStarter]: For program point L540(lines 540 572) no Hoare annotation was computed. [2018-11-18 13:09:50,272 INFO L425 ceAbstractionStarter]: For program point L408(lines 408 572) no Hoare annotation was computed. [2018-11-18 13:09:50,272 INFO L425 ceAbstractionStarter]: For program point L375(lines 375 572) no Hoare annotation was computed. [2018-11-18 13:09:50,273 INFO L425 ceAbstractionStarter]: For program point L210(lines 210 572) no Hoare annotation was computed. [2018-11-18 13:09:50,273 INFO L425 ceAbstractionStarter]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,273 INFO L425 ceAbstractionStarter]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,273 INFO L425 ceAbstractionStarter]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,273 INFO L425 ceAbstractionStarter]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,273 INFO L425 ceAbstractionStarter]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,273 INFO L425 ceAbstractionStarter]: For program point L442(lines 442 572) no Hoare annotation was computed. [2018-11-18 13:09:50,273 INFO L425 ceAbstractionStarter]: For program point L277(lines 277 572) no Hoare annotation was computed. [2018-11-18 13:09:50,273 INFO L425 ceAbstractionStarter]: For program point L244(lines 244 572) no Hoare annotation was computed. [2018-11-18 13:09:50,273 INFO L425 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-11-18 13:09:50,273 INFO L425 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-11-18 13:09:50,273 INFO L425 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-11-18 13:09:50,273 INFO L425 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-18 13:09:50,273 INFO L425 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-11-18 13:09:50,273 INFO L425 ceAbstractionStarter]: For program point L509(lines 509 572) no Hoare annotation was computed. [2018-11-18 13:09:50,273 INFO L425 ceAbstractionStarter]: For program point L476(lines 476 572) no Hoare annotation was computed. [2018-11-18 13:09:50,273 INFO L425 ceAbstractionStarter]: For program point L378(lines 378 572) no Hoare annotation was computed. [2018-11-18 13:09:50,273 INFO L425 ceAbstractionStarter]: For program point L345(lines 345 572) no Hoare annotation was computed. [2018-11-18 13:09:50,273 INFO L425 ceAbstractionStarter]: For program point L312(lines 312 572) no Hoare annotation was computed. [2018-11-18 13:09:50,274 INFO L425 ceAbstractionStarter]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,274 INFO L425 ceAbstractionStarter]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,274 INFO L425 ceAbstractionStarter]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,274 INFO L425 ceAbstractionStarter]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,274 INFO L425 ceAbstractionStarter]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,274 INFO L425 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-11-18 13:09:50,274 INFO L425 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-11-18 13:09:50,274 INFO L425 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-11-18 13:09:50,274 INFO L425 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-11-18 13:09:50,274 INFO L425 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-18 13:09:50,274 INFO L425 ceAbstractionStarter]: For program point L545(lines 545 572) no Hoare annotation was computed. [2018-11-18 13:09:50,274 INFO L425 ceAbstractionStarter]: For program point L215(lines 215 572) no Hoare annotation was computed. [2018-11-18 13:09:50,274 INFO L425 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 142) no Hoare annotation was computed. [2018-11-18 13:09:50,274 INFO L425 ceAbstractionStarter]: For program point L414(lines 414 572) no Hoare annotation was computed. [2018-11-18 13:09:50,274 INFO L425 ceAbstractionStarter]: For program point L249(lines 249 572) no Hoare annotation was computed. [2018-11-18 13:09:50,274 INFO L425 ceAbstractionStarter]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,274 INFO L425 ceAbstractionStarter]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,274 INFO L425 ceAbstractionStarter]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,274 INFO L425 ceAbstractionStarter]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,274 INFO L425 ceAbstractionStarter]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,274 INFO L425 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,274 INFO L425 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,274 INFO L425 ceAbstractionStarter]: For program point L514(lines 514 572) no Hoare annotation was computed. [2018-11-18 13:09:50,274 INFO L425 ceAbstractionStarter]: For program point L481(lines 481 572) no Hoare annotation was computed. [2018-11-18 13:09:50,275 INFO L425 ceAbstractionStarter]: For program point L448(lines 448 572) no Hoare annotation was computed. [2018-11-18 13:09:50,275 INFO L425 ceAbstractionStarter]: For program point L283(lines 283 572) no Hoare annotation was computed. [2018-11-18 13:09:50,275 INFO L425 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-11-18 13:09:50,275 INFO L425 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-11-18 13:09:50,275 INFO L425 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-11-18 13:09:50,275 INFO L425 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-11-18 13:09:50,275 INFO L425 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-18 13:09:50,275 INFO L425 ceAbstractionStarter]: For program point L548(lines 548 572) no Hoare annotation was computed. [2018-11-18 13:09:50,275 INFO L425 ceAbstractionStarter]: For program point L383(lines 383 572) no Hoare annotation was computed. [2018-11-18 13:09:50,275 INFO L425 ceAbstractionStarter]: For program point L317(lines 317 572) no Hoare annotation was computed. [2018-11-18 13:09:50,275 INFO L425 ceAbstractionStarter]: For program point L351(lines 351 572) no Hoare annotation was computed. [2018-11-18 13:09:50,275 INFO L425 ceAbstractionStarter]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,275 INFO L425 ceAbstractionStarter]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,275 INFO L425 ceAbstractionStarter]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,275 INFO L425 ceAbstractionStarter]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,275 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-11-18 13:09:50,275 INFO L425 ceAbstractionStarter]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,275 INFO L425 ceAbstractionStarter]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,275 INFO L425 ceAbstractionStarter]: For program point L517(lines 517 572) no Hoare annotation was computed. [2018-11-18 13:09:50,275 INFO L425 ceAbstractionStarter]: For program point L286(lines 286 572) no Hoare annotation was computed. [2018-11-18 13:09:50,275 INFO L425 ceAbstractionStarter]: For program point L220(lines 220 572) no Hoare annotation was computed. [2018-11-18 13:09:50,275 INFO L425 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-11-18 13:09:50,275 INFO L425 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-11-18 13:09:50,275 INFO L425 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-11-18 13:09:50,275 INFO L425 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-11-18 13:09:50,275 INFO L425 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-11-18 13:09:50,276 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-18 13:09:50,276 INFO L425 ceAbstractionStarter]: For program point L419(lines 419 572) no Hoare annotation was computed. [2018-11-18 13:09:50,276 INFO L425 ceAbstractionStarter]: For program point L320(lines 320 572) no Hoare annotation was computed. [2018-11-18 13:09:50,276 INFO L425 ceAbstractionStarter]: For program point L254(lines 254 572) no Hoare annotation was computed. [2018-11-18 13:09:50,276 INFO L425 ceAbstractionStarter]: For program point L354(lines 354 572) no Hoare annotation was computed. [2018-11-18 13:09:50,276 INFO L425 ceAbstractionStarter]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,276 INFO L425 ceAbstractionStarter]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,276 INFO L425 ceAbstractionStarter]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,276 INFO L425 ceAbstractionStarter]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,276 INFO L425 ceAbstractionStarter]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,276 INFO L425 ceAbstractionStarter]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,276 INFO L425 ceAbstractionStarter]: For program point L487(lines 487 572) no Hoare annotation was computed. [2018-11-18 13:09:50,276 INFO L425 ceAbstractionStarter]: For program point L454(lines 454 572) no Hoare annotation was computed. [2018-11-18 13:09:50,276 INFO L425 ceAbstractionStarter]: For program point L388(lines 388 572) no Hoare annotation was computed. [2018-11-18 13:09:50,276 INFO L425 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-11-18 13:09:50,276 INFO L425 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-11-18 13:09:50,276 INFO L425 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-11-18 13:09:50,276 INFO L425 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-11-18 13:09:50,276 INFO L425 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-11-18 13:09:50,276 INFO L425 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-18 13:09:50,276 INFO L425 ceAbstractionStarter]: For program point L554(lines 554 572) no Hoare annotation was computed. [2018-11-18 13:09:50,276 INFO L425 ceAbstractionStarter]: For program point L323(lines 323 572) no Hoare annotation was computed. [2018-11-18 13:09:50,276 INFO L421 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse10 (= ~a1~0 |old(~a1~0)|)) (.cse9 (= ~a19~0 |old(~a19~0)|)) (.cse8 (= |old(~a10~0)| ~a10~0))) (let ((.cse4 (< 2 |old(~a10~0)|)) (.cse1 (and .cse10 .cse9 .cse8)) (.cse7 (and (= |old(~a19~0)| ~a19~0) .cse8 .cse10)) (.cse6 (< 8 |old(~a19~0)|)) (.cse5 (= 3 |old(~a10~0)|)) (.cse3 (= 7 |old(~a19~0)|)) (.cse0 (not (= 14 ~a4~0))) (.cse2 (not (= 0 ~a12~0)))) (and (or .cse0 .cse1 .cse2 (not (= 9 |old(~a19~0)|))) (or .cse1 (or .cse3 .cse0 .cse2 .cse4)) (or .cse5 .cse3 .cse6 .cse7) (or (< (+ |old(~a1~0)| 12) 0) (or .cse0 .cse2 .cse4) .cse1) (or .cse7 .cse6 (not (= 2 |old(~a10~0)|))) (or .cse7 .cse3 .cse6 (= 8 |old(~a19~0)|)) (or (or .cse5 .cse3 (= 10 |old(~a19~0)|)) (and .cse8 .cse9 .cse10) .cse0 .cse2)))) [2018-11-18 13:09:50,277 INFO L425 ceAbstractionStarter]: For program point L357(lines 357 572) no Hoare annotation was computed. [2018-11-18 13:09:50,277 INFO L425 ceAbstractionStarter]: For program point L291(lines 291 572) no Hoare annotation was computed. [2018-11-18 13:09:50,277 INFO L425 ceAbstractionStarter]: For program point L225(lines 225 572) no Hoare annotation was computed. [2018-11-18 13:09:50,277 INFO L425 ceAbstractionStarter]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,277 INFO L425 ceAbstractionStarter]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,277 INFO L425 ceAbstractionStarter]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,277 INFO L425 ceAbstractionStarter]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,277 INFO L425 ceAbstractionStarter]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,277 INFO L425 ceAbstractionStarter]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,277 INFO L425 ceAbstractionStarter]: For program point L523(lines 523 572) no Hoare annotation was computed. [2018-11-18 13:09:50,277 INFO L425 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-11-18 13:09:50,277 INFO L425 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-11-18 13:09:50,277 INFO L425 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-11-18 13:09:50,277 INFO L425 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-11-18 13:09:50,277 INFO L425 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-11-18 13:09:50,277 INFO L425 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-11-18 13:09:50,277 INFO L425 ceAbstractionStarter]: For program point L557(lines 557 572) no Hoare annotation was computed. [2018-11-18 13:09:50,277 INFO L425 ceAbstractionStarter]: For program point L425(lines 425 572) no Hoare annotation was computed. [2018-11-18 13:09:50,279 INFO L425 ceAbstractionStarter]: For program point L326(lines 326 572) no Hoare annotation was computed. [2018-11-18 13:09:50,279 INFO L425 ceAbstractionStarter]: For program point L260(lines 260 572) no Hoare annotation was computed. [2018-11-18 13:09:50,279 INFO L425 ceAbstractionStarter]: For program point L393(lines 393 572) no Hoare annotation was computed. [2018-11-18 13:09:50,279 INFO L425 ceAbstractionStarter]: For program point L360(lines 360 572) no Hoare annotation was computed. [2018-11-18 13:09:50,279 INFO L425 ceAbstractionStarter]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,279 INFO L425 ceAbstractionStarter]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,279 INFO L425 ceAbstractionStarter]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,279 INFO L425 ceAbstractionStarter]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,279 INFO L425 ceAbstractionStarter]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,279 INFO L425 ceAbstractionStarter]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,279 INFO L425 ceAbstractionStarter]: For program point L526(lines 526 572) no Hoare annotation was computed. [2018-11-18 13:09:50,280 INFO L425 ceAbstractionStarter]: For program point L493(lines 493 572) no Hoare annotation was computed. [2018-11-18 13:09:50,280 INFO L425 ceAbstractionStarter]: For program point L460(lines 460 572) no Hoare annotation was computed. [2018-11-18 13:09:50,280 INFO L425 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-11-18 13:09:50,280 INFO L425 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-11-18 13:09:50,280 INFO L425 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-11-18 13:09:50,280 INFO L425 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-11-18 13:09:50,280 INFO L425 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-11-18 13:09:50,280 INFO L425 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-11-18 13:09:50,280 INFO L425 ceAbstractionStarter]: For program point L329(lines 329 572) no Hoare annotation was computed. [2018-11-18 13:09:50,280 INFO L425 ceAbstractionStarter]: For program point L296(lines 296 572) no Hoare annotation was computed. [2018-11-18 13:09:50,280 INFO L425 ceAbstractionStarter]: For program point L231(lines 231 572) no Hoare annotation was computed. [2018-11-18 13:09:50,280 INFO L425 ceAbstractionStarter]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,280 INFO L425 ceAbstractionStarter]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,280 INFO L425 ceAbstractionStarter]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,280 INFO L425 ceAbstractionStarter]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,280 INFO L425 ceAbstractionStarter]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,280 INFO L425 ceAbstractionStarter]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:09:50,280 INFO L425 ceAbstractionStarter]: For program point L529(lines 529 572) no Hoare annotation was computed. [2018-11-18 13:09:50,280 INFO L425 ceAbstractionStarter]: For program point L430(lines 430 572) no Hoare annotation was computed. [2018-11-18 13:09:50,280 INFO L425 ceAbstractionStarter]: For program point L265(lines 265 572) no Hoare annotation was computed. [2018-11-18 13:09:50,280 INFO L425 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-11-18 13:09:50,280 INFO L425 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-11-18 13:09:50,280 INFO L425 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-11-18 13:09:50,280 INFO L425 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-11-18 13:09:50,280 INFO L425 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-11-18 13:09:50,280 INFO L425 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-11-18 13:09:50,280 INFO L425 ceAbstractionStarter]: For program point L563(lines 563 572) no Hoare annotation was computed. [2018-11-18 13:09:50,281 INFO L425 ceAbstractionStarter]: For program point L398(lines 398 572) no Hoare annotation was computed. [2018-11-18 13:09:50,281 INFO L425 ceAbstractionStarter]: For program point L365(lines 365 572) no Hoare annotation was computed. [2018-11-18 13:09:50,281 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:09:50,281 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a19~0 9) (= ~a10~0 0) (= ~a12~0 0) (= ~a1~0 23) (= ~a4~0 14)) [2018-11-18 13:09:50,281 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 13:09:50,281 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 13:09:50,281 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (= 14 ~a4~0)) (not (= 23 |old(~a1~0)|)) (and (= ~a1~0 23) (= ~a19~0 |old(~a19~0)|) (= |old(~a10~0)| ~a10~0)) (not (= 0 ~a12~0)) (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|))) [2018-11-18 13:09:50,281 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2018-11-18 13:09:50,281 INFO L421 ceAbstractionStarter]: At program point L590(line 590) the Hoare annotation is: (let ((.cse1 (not (= ~a19~0 7))) (.cse0 (<= ~a10~0 2))) (or (not (= 23 |old(~a1~0)|)) (= 2 ~a10~0) (not (= 0 ~a12~0)) (not (= 0 |old(~a10~0)|)) (and .cse0 (<= 0 (+ ~a1~0 12))) (not (= 9 |old(~a19~0)|)) (and (<= ~a19~0 |old(~a19~0)|) (<= 9 ~a19~0)) (and .cse1 (not (= ~a19~0 8)) (<= ~a19~0 8)) (and (not (= ~a10~0 3)) .cse1 (not (= ~a19~0 10))) (and .cse1 .cse0) (not (= 14 ~a4~0)))) [2018-11-18 13:09:50,281 INFO L425 ceAbstractionStarter]: For program point L590-1(line 590) no Hoare annotation was computed. [2018-11-18 13:09:50,281 INFO L425 ceAbstractionStarter]: For program point L587(line 587) no Hoare annotation was computed. [2018-11-18 13:09:50,281 INFO L425 ceAbstractionStarter]: For program point L582-1(lines 582 591) no Hoare annotation was computed. [2018-11-18 13:09:50,281 INFO L421 ceAbstractionStarter]: At program point L582-3(lines 582 591) the Hoare annotation is: (let ((.cse1 (not (= ~a19~0 7))) (.cse0 (<= ~a10~0 2))) (or (not (= 23 |old(~a1~0)|)) (= 2 ~a10~0) (not (= 0 ~a12~0)) (not (= 0 |old(~a10~0)|)) (and .cse0 (<= 0 (+ ~a1~0 12))) (not (= 9 |old(~a19~0)|)) (and (<= ~a19~0 |old(~a19~0)|) (<= 9 ~a19~0)) (and .cse1 (not (= ~a19~0 8)) (<= ~a19~0 8)) (and (not (= ~a10~0 3)) .cse1 (not (= ~a19~0 10))) (and .cse1 .cse0) (not (= 14 ~a4~0)))) [2018-11-18 13:09:50,281 INFO L425 ceAbstractionStarter]: For program point L582-4(lines 576 592) no Hoare annotation was computed. [2018-11-18 13:09:50,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 01:09:50 BoogieIcfgContainer [2018-11-18 13:09:50,289 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 13:09:50,289 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:09:50,289 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:09:50,289 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:09:50,290 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:08:25" (3/4) ... [2018-11-18 13:09:50,292 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 13:09:50,298 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 13:09:50,298 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-18 13:09:50,298 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 13:09:50,307 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 13:09:50,308 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 13:09:50,328 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(23 == \old(a1)) || 2 == a10) || !(0 == a12)) || !(0 == \old(a10))) || (a10 <= 2 && 0 <= a1 + 12)) || !(9 == \old(a19))) || (a19 <= \old(a19) && 9 <= a19)) || ((!(a19 == 7) && !(a19 == 8)) && a19 <= 8)) || ((!(a10 == 3) && !(a19 == 7)) && !(a19 == 10))) || (!(a19 == 7) && a10 <= 2)) || !(14 == a4) [2018-11-18 13:09:50,392 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_992451f4-89bb-4819-b71f-ade6d8475762/bin-2019/utaipan/witness.graphml [2018-11-18 13:09:50,392 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:09:50,393 INFO L168 Benchmark]: Toolchain (without parser) took 86750.29 ms. Allocated memory was 1.0 GB in the beginning and 3.9 GB in the end (delta: 2.8 GB). Free memory was 957.0 MB in the beginning and 3.5 GB in the end (delta: -2.6 GB). Peak memory consumption was 259.2 MB. Max. memory is 11.5 GB. [2018-11-18 13:09:50,394 INFO L168 Benchmark]: CDTParser took 0.16 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 13:09:50,394 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.17 ms. Allocated memory is still 1.0 GB. Free memory was 957.0 MB in the beginning and 922.1 MB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. [2018-11-18 13:09:50,394 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 919.4 MB in the beginning and 1.1 GB in the end (delta: -206.0 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2018-11-18 13:09:50,395 INFO L168 Benchmark]: Boogie Preprocessor took 51.04 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:09:50,395 INFO L168 Benchmark]: RCFGBuilder took 974.85 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: 102.7 MB). Peak memory consumption was 102.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:09:50,395 INFO L168 Benchmark]: TraceAbstraction took 85202.38 ms. Allocated memory was 1.2 GB in the beginning and 3.9 GB in the end (delta: 2.7 GB). Free memory was 1.0 GB in the beginning and 3.5 GB in the end (delta: -2.5 GB). Peak memory consumption was 2.6 GB. Max. memory is 11.5 GB. [2018-11-18 13:09:50,395 INFO L168 Benchmark]: Witness Printer took 103.57 ms. Allocated memory is still 3.9 GB. Free memory was 3.5 GB in the beginning and 3.5 GB in the end (delta: 265.0 kB). Peak memory consumption was 265.0 kB. Max. memory is 11.5 GB. [2018-11-18 13:09:50,397 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 346.17 ms. Allocated memory is still 1.0 GB. Free memory was 957.0 MB in the beginning and 922.1 MB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 69.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 919.4 MB in the beginning and 1.1 GB in the end (delta: -206.0 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.04 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 974.85 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: 102.7 MB). Peak memory consumption was 102.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 85202.38 ms. Allocated memory was 1.2 GB in the beginning and 3.9 GB in the end (delta: 2.7 GB). Free memory was 1.0 GB in the beginning and 3.5 GB in the end (delta: -2.5 GB). Peak memory consumption was 2.6 GB. Max. memory is 11.5 GB. * Witness Printer took 103.57 ms. Allocated memory is still 3.9 GB. Free memory was 3.5 GB in the beginning and 3.5 GB in the end (delta: 265.0 kB). Peak memory consumption was 265.0 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 142]: 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: 582]: Loop Invariant Derived loop invariant: (((((((((!(23 == \old(a1)) || 2 == a10) || !(0 == a12)) || !(0 == \old(a10))) || (a10 <= 2 && 0 <= a1 + 12)) || !(9 == \old(a19))) || (a19 <= \old(a19) && 9 <= a19)) || ((!(a19 == 7) && !(a19 == 8)) && a19 <= 8)) || ((!(a10 == 3) && !(a19 == 7)) && !(a19 == 10))) || (!(a19 == 7) && a10 <= 2)) || !(14 == a4) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. SAFE Result, 85.1s OverallTime, 10 OverallIterations, 4 TraceHistogramMax, 39.8s AutomataDifference, 0.0s DeadEndRemovalTime, 2.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 893 SDtfs, 8523 SDslu, 1381 SDs, 0 SdLazy, 15918 SolverSat, 2722 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 13.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 2751 GetRequests, 2486 SyntacticMatches, 123 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3604 ImplicationChecksByTransitivity, 57.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3662occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 3.2s AbstIntTime, 5 AbstIntIterations, 1 AbstIntStrong, 0.9973568684836293 AbsIntWeakeningRatio, 0.12206572769953052 AbsIntAvgWeakeningVarsNumRemoved, 15.417840375586854 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 1987 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 222 PreInvPairs, 370 NumberOfFragments, 375 HoareAnnotationTreeSize, 222 FomulaSimplifications, 54398 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 17054 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 37.6s InterpolantComputationTime, 3432 NumberOfCodeBlocks, 3432 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 4585 ConstructedInterpolants, 126 QuantifiedInterpolants, 8635202 SizeOfPredicates, 10 NumberOfNonLiveVariables, 1978 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 18 InterpolantComputations, 5 PerfectInterpolantSequences, 3970/4618 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...