./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label42_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bb3b5795-0a1a-49b0-8b2c-834c3ff52e2f/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bb3b5795-0a1a-49b0-8b2c-834c3ff52e2f/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bb3b5795-0a1a-49b0-8b2c-834c3ff52e2f/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bb3b5795-0a1a-49b0-8b2c-834c3ff52e2f/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label42_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bb3b5795-0a1a-49b0-8b2c-834c3ff52e2f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bb3b5795-0a1a-49b0-8b2c-834c3ff52e2f/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 1ced3eb982b16bda97708eba7d7a33ef6d709871 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 13:53:32,261 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 13:53:32,262 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 13:53:32,268 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 13:53:32,268 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 13:53:32,269 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 13:53:32,269 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 13:53:32,270 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 13:53:32,271 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 13:53:32,271 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 13:53:32,272 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 13:53:32,272 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 13:53:32,273 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 13:53:32,274 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 13:53:32,275 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 13:53:32,275 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 13:53:32,276 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 13:53:32,277 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 13:53:32,279 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 13:53:32,279 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 13:53:32,280 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 13:53:32,281 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 13:53:32,282 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 13:53:32,283 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 13:53:32,283 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 13:53:32,283 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 13:53:32,284 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 13:53:32,284 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 13:53:32,285 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 13:53:32,285 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 13:53:32,286 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 13:53:32,286 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 13:53:32,286 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 13:53:32,286 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 13:53:32,287 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 13:53:32,288 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 13:53:32,288 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bb3b5795-0a1a-49b0-8b2c-834c3ff52e2f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 13:53:32,295 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 13:53:32,295 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 13:53:32,295 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 13:53:32,296 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 13:53:32,296 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 13:53:32,296 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 13:53:32,296 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 13:53:32,296 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 13:53:32,296 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 13:53:32,296 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 13:53:32,296 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 13:53:32,296 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 13:53:32,296 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 13:53:32,297 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 13:53:32,297 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 13:53:32,297 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 13:53:32,297 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 13:53:32,297 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 13:53:32,297 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 13:53:32,297 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 13:53:32,297 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 13:53:32,297 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 13:53:32,297 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 13:53:32,297 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 13:53:32,298 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 13:53:32,298 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 13:53:32,298 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 13:53:32,298 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 13:53:32,298 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 13:53:32,298 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 13:53:32,298 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 13:53:32,298 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 13:53:32,299 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 13:53:32,299 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 13:53:32,299 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 13:53:32,299 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 13:53:32,299 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 13:53:32,299 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_bb3b5795-0a1a-49b0-8b2c-834c3ff52e2f/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 -> 1ced3eb982b16bda97708eba7d7a33ef6d709871 [2018-11-23 13:53:32,324 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 13:53:32,333 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 13:53:32,335 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 13:53:32,336 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 13:53:32,337 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 13:53:32,337 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bb3b5795-0a1a-49b0-8b2c-834c3ff52e2f/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem01_label42_true-unreach-call_false-termination.c [2018-11-23 13:53:32,383 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bb3b5795-0a1a-49b0-8b2c-834c3ff52e2f/bin-2019/utaipan/data/23633a94e/0e31c9a03f054d13ab4141fc136b204b/FLAG8cc9ed364 [2018-11-23 13:53:32,854 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 13:53:32,855 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bb3b5795-0a1a-49b0-8b2c-834c3ff52e2f/sv-benchmarks/c/eca-rers2012/Problem01_label42_true-unreach-call_false-termination.c [2018-11-23 13:53:32,864 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bb3b5795-0a1a-49b0-8b2c-834c3ff52e2f/bin-2019/utaipan/data/23633a94e/0e31c9a03f054d13ab4141fc136b204b/FLAG8cc9ed364 [2018-11-23 13:53:33,360 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bb3b5795-0a1a-49b0-8b2c-834c3ff52e2f/bin-2019/utaipan/data/23633a94e/0e31c9a03f054d13ab4141fc136b204b [2018-11-23 13:53:33,362 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 13:53:33,363 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 13:53:33,364 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 13:53:33,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 13:53:33,366 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 13:53:33,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:53:33" (1/1) ... [2018-11-23 13:53:33,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56c8d80d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:33, skipping insertion in model container [2018-11-23 13:53:33,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:53:33" (1/1) ... [2018-11-23 13:53:33,377 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 13:53:33,412 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 13:53:33,651 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:53:33,654 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 13:53:33,725 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:53:33,738 INFO L195 MainTranslator]: Completed translation [2018-11-23 13:53:33,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:33 WrapperNode [2018-11-23 13:53:33,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 13:53:33,739 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 13:53:33,739 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 13:53:33,739 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 13:53:33,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:33" (1/1) ... [2018-11-23 13:53:33,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:33" (1/1) ... [2018-11-23 13:53:33,816 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 13:53:33,816 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 13:53:33,816 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 13:53:33,816 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 13:53:33,825 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:33" (1/1) ... [2018-11-23 13:53:33,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:33" (1/1) ... [2018-11-23 13:53:33,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:33" (1/1) ... [2018-11-23 13:53:33,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:33" (1/1) ... [2018-11-23 13:53:33,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:33" (1/1) ... [2018-11-23 13:53:33,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:33" (1/1) ... [2018-11-23 13:53:33,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:33" (1/1) ... [2018-11-23 13:53:33,867 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 13:53:33,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 13:53:33,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 13:53:33,868 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 13:53:33,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bb3b5795-0a1a-49b0-8b2c-834c3ff52e2f/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 [2018-11-23 13:53:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-23 13:53:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 13:53:33,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 13:53:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-23 13:53:33,904 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-23 13:53:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 13:53:33,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 13:53:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 13:53:33,905 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 13:53:34,642 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 13:53:34,643 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 13:53:34,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:53:34 BoogieIcfgContainer [2018-11-23 13:53:34,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 13:53:34,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 13:53:34,644 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 13:53:34,645 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 13:53:34,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:53:33" (1/3) ... [2018-11-23 13:53:34,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6957169f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:53:34, skipping insertion in model container [2018-11-23 13:53:34,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:33" (2/3) ... [2018-11-23 13:53:34,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6957169f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:53:34, skipping insertion in model container [2018-11-23 13:53:34,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:53:34" (3/3) ... [2018-11-23 13:53:34,648 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label42_true-unreach-call_false-termination.c [2018-11-23 13:53:34,656 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 13:53:34,662 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 13:53:34,672 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 13:53:34,696 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 13:53:34,696 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 13:53:34,696 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 13:53:34,696 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 13:53:34,696 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 13:53:34,696 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 13:53:34,696 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 13:53:34,696 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 13:53:34,713 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2018-11-23 13:53:34,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-11-23 13:53:34,720 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:53:34,721 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:53:34,724 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:53:34,727 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:53:34,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1328102103, now seen corresponding path program 1 times [2018-11-23 13:53:34,729 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:53:34,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:53:34,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:53:34,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:53:34,758 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:53:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:53:35,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:53:35,012 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:53:35,013 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 13:53:35,013 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:53:35,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 13:53:35,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 13:53:35,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:53:35,027 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2018-11-23 13:53:35,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:53:35,648 INFO L93 Difference]: Finished difference Result 547 states and 938 transitions. [2018-11-23 13:53:35,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 13:53:35,649 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2018-11-23 13:53:35,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:53:35,659 INFO L225 Difference]: With dead ends: 547 [2018-11-23 13:53:35,659 INFO L226 Difference]: Without dead ends: 338 [2018-11-23 13:53:35,662 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:53:35,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2018-11-23 13:53:35,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2018-11-23 13:53:35,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2018-11-23 13:53:35,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 551 transitions. [2018-11-23 13:53:35,710 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 551 transitions. Word has length 121 [2018-11-23 13:53:35,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:53:35,710 INFO L480 AbstractCegarLoop]: Abstraction has 338 states and 551 transitions. [2018-11-23 13:53:35,711 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 13:53:35,711 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 551 transitions. [2018-11-23 13:53:35,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-11-23 13:53:35,714 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:53:35,714 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:53:35,715 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:53:35,715 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:53:35,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1654189344, now seen corresponding path program 1 times [2018-11-23 13:53:35,715 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:53:35,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:53:35,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:53:35,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:53:35,717 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:53:35,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:53:35,801 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:53:35,802 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:53:35,802 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 13:53:35,802 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:53:35,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 13:53:35,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 13:53:35,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-23 13:53:35,804 INFO L87 Difference]: Start difference. First operand 338 states and 551 transitions. Second operand 6 states. [2018-11-23 13:53:36,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:53:36,438 INFO L93 Difference]: Finished difference Result 1067 states and 1827 transitions. [2018-11-23 13:53:36,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 13:53:36,442 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2018-11-23 13:53:36,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:53:36,448 INFO L225 Difference]: With dead ends: 1067 [2018-11-23 13:53:36,448 INFO L226 Difference]: Without dead ends: 735 [2018-11-23 13:53:36,450 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-23 13:53:36,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2018-11-23 13:53:36,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 720. [2018-11-23 13:53:36,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 720 states. [2018-11-23 13:53:36,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1141 transitions. [2018-11-23 13:53:36,476 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1141 transitions. Word has length 131 [2018-11-23 13:53:36,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:53:36,477 INFO L480 AbstractCegarLoop]: Abstraction has 720 states and 1141 transitions. [2018-11-23 13:53:36,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 13:53:36,477 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1141 transitions. [2018-11-23 13:53:36,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-11-23 13:53:36,480 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:53:36,481 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:53:36,481 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:53:36,482 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:53:36,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1456847330, now seen corresponding path program 1 times [2018-11-23 13:53:36,482 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:53:36,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:53:36,483 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:53:36,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:53:36,483 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:53:36,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:53:36,699 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:53:36,700 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:53:36,700 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 13:53:36,700 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:53:36,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 13:53:36,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 13:53:36,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 13:53:36,701 INFO L87 Difference]: Start difference. First operand 720 states and 1141 transitions. Second operand 5 states. [2018-11-23 13:53:37,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:53:37,157 INFO L93 Difference]: Finished difference Result 1569 states and 2524 transitions. [2018-11-23 13:53:37,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 13:53:37,158 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 132 [2018-11-23 13:53:37,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:53:37,161 INFO L225 Difference]: With dead ends: 1569 [2018-11-23 13:53:37,162 INFO L226 Difference]: Without dead ends: 717 [2018-11-23 13:53:37,164 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 13:53:37,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2018-11-23 13:53:37,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 717. [2018-11-23 13:53:37,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2018-11-23 13:53:37,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 1065 transitions. [2018-11-23 13:53:37,183 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 1065 transitions. Word has length 132 [2018-11-23 13:53:37,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:53:37,184 INFO L480 AbstractCegarLoop]: Abstraction has 717 states and 1065 transitions. [2018-11-23 13:53:37,184 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 13:53:37,184 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 1065 transitions. [2018-11-23 13:53:37,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-11-23 13:53:37,186 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:53:37,186 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:53:37,186 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:53:37,187 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:53:37,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1679080988, now seen corresponding path program 1 times [2018-11-23 13:53:37,187 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:53:37,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:53:37,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:53:37,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:53:37,188 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:53:37,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:53:37,421 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:53:37,421 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:53:37,422 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 13:53:37,422 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:53:37,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 13:53:37,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 13:53:37,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 13:53:37,423 INFO L87 Difference]: Start difference. First operand 717 states and 1065 transitions. Second operand 5 states. [2018-11-23 13:53:38,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:53:38,081 INFO L93 Difference]: Finished difference Result 1563 states and 2356 transitions. [2018-11-23 13:53:38,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 13:53:38,082 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2018-11-23 13:53:38,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:53:38,085 INFO L225 Difference]: With dead ends: 1563 [2018-11-23 13:53:38,085 INFO L226 Difference]: Without dead ends: 716 [2018-11-23 13:53:38,090 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 13:53:38,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2018-11-23 13:53:38,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2018-11-23 13:53:38,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2018-11-23 13:53:38,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1058 transitions. [2018-11-23 13:53:38,107 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1058 transitions. Word has length 133 [2018-11-23 13:53:38,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:53:38,108 INFO L480 AbstractCegarLoop]: Abstraction has 716 states and 1058 transitions. [2018-11-23 13:53:38,108 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 13:53:38,108 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1058 transitions. [2018-11-23 13:53:38,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-11-23 13:53:38,111 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:53:38,111 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:53:38,111 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:53:38,111 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:53:38,111 INFO L82 PathProgramCache]: Analyzing trace with hash 982548902, now seen corresponding path program 1 times [2018-11-23 13:53:38,111 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:53:38,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:53:38,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:53:38,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:53:38,112 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:53:38,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:53:38,185 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:53:38,186 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:53:38,186 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 13:53:38,186 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:53:38,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 13:53:38,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 13:53:38,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:53:38,187 INFO L87 Difference]: Start difference. First operand 716 states and 1058 transitions. Second operand 3 states. [2018-11-23 13:53:38,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:53:38,488 INFO L93 Difference]: Finished difference Result 1871 states and 2809 transitions. [2018-11-23 13:53:38,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 13:53:38,489 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 136 [2018-11-23 13:53:38,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:53:38,493 INFO L225 Difference]: With dead ends: 1871 [2018-11-23 13:53:38,493 INFO L226 Difference]: Without dead ends: 1161 [2018-11-23 13:53:38,495 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:53:38,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2018-11-23 13:53:38,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 1157. [2018-11-23 13:53:38,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1157 states. [2018-11-23 13:53:38,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1585 transitions. [2018-11-23 13:53:38,512 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1585 transitions. Word has length 136 [2018-11-23 13:53:38,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:53:38,512 INFO L480 AbstractCegarLoop]: Abstraction has 1157 states and 1585 transitions. [2018-11-23 13:53:38,512 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 13:53:38,513 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1585 transitions. [2018-11-23 13:53:38,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2018-11-23 13:53:38,515 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:53:38,515 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:53:38,516 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:53:38,516 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:53:38,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1610616599, now seen corresponding path program 1 times [2018-11-23 13:53:38,516 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:53:38,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:53:38,517 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:53:38,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:53:38,517 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:53:38,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:53:38,595 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:53:38,595 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:53:38,595 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 13:53:38,596 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 168 with the following transitions: [2018-11-23 13:53:38,597 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [97], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [613], [615], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-11-23 13:53:38,629 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 13:53:38,629 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 13:53:38,979 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 13:53:38,980 INFO L272 AbstractInterpreter]: Visited 122 different actions 122 times. Never merged. Never widened. Performed 1614 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1614 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 42 variables. [2018-11-23 13:53:38,998 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:53:38,998 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 13:53:39,331 INFO L227 lantSequenceWeakener]: Weakened 158 states. On average, predicates are now at 80.45% of their original sizes. [2018-11-23 13:53:39,332 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 13:53:39,378 INFO L415 sIntCurrentIteration]: We unified 166 AI predicates to 166 [2018-11-23 13:53:39,378 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 13:53:39,379 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 13:53:39,379 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-11-23 13:53:39,379 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:53:39,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 13:53:39,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 13:53:39,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-23 13:53:39,384 INFO L87 Difference]: Start difference. First operand 1157 states and 1585 transitions. Second operand 6 states. [2018-11-23 13:53:40,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:53:40,980 INFO L93 Difference]: Finished difference Result 2444 states and 3334 transitions. [2018-11-23 13:53:40,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 13:53:40,980 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2018-11-23 13:53:40,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:53:40,983 INFO L225 Difference]: With dead ends: 2444 [2018-11-23 13:53:40,983 INFO L226 Difference]: Without dead ends: 1293 [2018-11-23 13:53:40,984 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 167 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-23 13:53:40,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1293 states. [2018-11-23 13:53:40,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1293 to 1292. [2018-11-23 13:53:40,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1292 states. [2018-11-23 13:53:41,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 1726 transitions. [2018-11-23 13:53:41,002 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 1726 transitions. Word has length 167 [2018-11-23 13:53:41,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:53:41,002 INFO L480 AbstractCegarLoop]: Abstraction has 1292 states and 1726 transitions. [2018-11-23 13:53:41,002 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 13:53:41,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 1726 transitions. [2018-11-23 13:53:41,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-11-23 13:53:41,005 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:53:41,005 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:53:41,005 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:53:41,006 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:53:41,006 INFO L82 PathProgramCache]: Analyzing trace with hash -367809572, now seen corresponding path program 1 times [2018-11-23 13:53:41,006 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:53:41,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:53:41,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:53:41,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:53:41,007 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:53:41,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:53:41,075 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 55 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-23 13:53:41,075 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:53:41,076 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 13:53:41,076 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 176 with the following transitions: [2018-11-23 13:53:41,076 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [97], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [613], [615], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-11-23 13:53:41,080 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 13:53:41,080 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 13:53:41,271 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 13:53:41,271 INFO L272 AbstractInterpreter]: Visited 126 different actions 246 times. Merged at 4 different actions 4 times. Never widened. Performed 3226 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3226 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-11-23 13:53:41,282 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:53:41,282 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 13:53:41,480 INFO L227 lantSequenceWeakener]: Weakened 172 states. On average, predicates are now at 81.89% of their original sizes. [2018-11-23 13:53:41,480 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 13:53:41,531 INFO L415 sIntCurrentIteration]: We unified 174 AI predicates to 174 [2018-11-23 13:53:41,531 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 13:53:41,531 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 13:53:41,531 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-23 13:53:41,531 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:53:41,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 13:53:41,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 13:53:41,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-23 13:53:41,532 INFO L87 Difference]: Start difference. First operand 1292 states and 1726 transitions. Second operand 10 states. [2018-11-23 13:53:44,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:53:44,733 INFO L93 Difference]: Finished difference Result 2582 states and 3504 transitions. [2018-11-23 13:53:44,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-23 13:53:44,733 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 175 [2018-11-23 13:53:44,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:53:44,737 INFO L225 Difference]: With dead ends: 2582 [2018-11-23 13:53:44,737 INFO L226 Difference]: Without dead ends: 1431 [2018-11-23 13:53:44,740 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 182 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-11-23 13:53:44,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1431 states. [2018-11-23 13:53:44,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1431 to 1429. [2018-11-23 13:53:44,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1429 states. [2018-11-23 13:53:44,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 1873 transitions. [2018-11-23 13:53:44,769 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 1873 transitions. Word has length 175 [2018-11-23 13:53:44,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:53:44,769 INFO L480 AbstractCegarLoop]: Abstraction has 1429 states and 1873 transitions. [2018-11-23 13:53:44,769 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 13:53:44,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 1873 transitions. [2018-11-23 13:53:44,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-11-23 13:53:44,774 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:53:44,774 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:53:44,774 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:53:44,775 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:53:44,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1058573210, now seen corresponding path program 1 times [2018-11-23 13:53:44,775 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:53:44,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:53:44,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:53:44,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:53:44,776 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:53:44,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:53:44,880 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 95 proven. 15 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-11-23 13:53:44,880 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:53:44,880 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 13:53:44,880 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 209 with the following transitions: [2018-11-23 13:53:44,881 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [97], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [613], [615], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-11-23 13:53:44,884 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 13:53:44,884 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 13:53:45,060 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 13:53:45,060 INFO L272 AbstractInterpreter]: Visited 126 different actions 246 times. Merged at 4 different actions 4 times. Never widened. Performed 3286 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3286 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-11-23 13:53:45,066 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:53:45,066 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 13:53:45,220 INFO L227 lantSequenceWeakener]: Weakened 205 states. On average, predicates are now at 81.84% of their original sizes. [2018-11-23 13:53:45,220 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 13:53:45,270 INFO L415 sIntCurrentIteration]: We unified 207 AI predicates to 207 [2018-11-23 13:53:45,270 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 13:53:45,271 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 13:53:45,271 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-23 13:53:45,271 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:53:45,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 13:53:45,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 13:53:45,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-23 13:53:45,272 INFO L87 Difference]: Start difference. First operand 1429 states and 1873 transitions. Second operand 10 states. [2018-11-23 13:53:47,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:53:47,400 INFO L93 Difference]: Finished difference Result 2857 states and 3801 transitions. [2018-11-23 13:53:47,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-23 13:53:47,401 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 208 [2018-11-23 13:53:47,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:53:47,405 INFO L225 Difference]: With dead ends: 2857 [2018-11-23 13:53:47,406 INFO L226 Difference]: Without dead ends: 1706 [2018-11-23 13:53:47,409 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 216 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-11-23 13:53:47,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2018-11-23 13:53:47,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1704. [2018-11-23 13:53:47,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1704 states. [2018-11-23 13:53:47,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1704 states to 1704 states and 2170 transitions. [2018-11-23 13:53:47,442 INFO L78 Accepts]: Start accepts. Automaton has 1704 states and 2170 transitions. Word has length 208 [2018-11-23 13:53:47,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:53:47,442 INFO L480 AbstractCegarLoop]: Abstraction has 1704 states and 2170 transitions. [2018-11-23 13:53:47,442 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 13:53:47,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1704 states and 2170 transitions. [2018-11-23 13:53:47,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-11-23 13:53:47,448 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:53:47,448 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:53:47,448 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:53:47,448 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:53:47,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1134973045, now seen corresponding path program 1 times [2018-11-23 13:53:47,449 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:53:47,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:53:47,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:53:47,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:53:47,449 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:53:47,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:53:47,594 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 92 proven. 51 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-11-23 13:53:47,594 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:53:47,594 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 13:53:47,594 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 217 with the following transitions: [2018-11-23 13:53:47,594 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [97], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [613], [615], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-11-23 13:53:47,597 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 13:53:47,598 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 13:53:47,978 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 13:53:47,979 INFO L272 AbstractInterpreter]: Visited 128 different actions 513 times. Merged at 8 different actions 34 times. Widened at 1 different actions 1 times. Performed 7207 root evaluator evaluations with a maximum evaluation depth of 3. Performed 7207 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 8 fixpoints after 3 different actions. Largest state had 42 variables. [2018-11-23 13:53:47,982 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:53:47,983 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 13:53:47,983 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:53:47,983 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bb3b5795-0a1a-49b0-8b2c-834c3ff52e2f/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 [2018-11-23 13:53:47,990 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:53:47,990 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 13:53:48,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:53:48,071 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:53:48,149 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-11-23 13:53:48,149 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 13:53:48,244 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 97 proven. 44 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-23 13:53:48,260 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 13:53:48,260 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2018-11-23 13:53:48,260 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 13:53:48,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-23 13:53:48,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-23 13:53:48,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-11-23 13:53:48,261 INFO L87 Difference]: Start difference. First operand 1704 states and 2170 transitions. Second operand 11 states. [2018-11-23 13:53:49,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:53:49,535 INFO L93 Difference]: Finished difference Result 3566 states and 4686 transitions. [2018-11-23 13:53:49,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-23 13:53:49,535 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 216 [2018-11-23 13:53:49,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:53:49,540 INFO L225 Difference]: With dead ends: 3566 [2018-11-23 13:53:49,540 INFO L226 Difference]: Without dead ends: 2278 [2018-11-23 13:53:49,542 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 433 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2018-11-23 13:53:49,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2278 states. [2018-11-23 13:53:49,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2278 to 2270. [2018-11-23 13:53:49,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2270 states. [2018-11-23 13:53:49,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2270 states to 2270 states and 2848 transitions. [2018-11-23 13:53:49,573 INFO L78 Accepts]: Start accepts. Automaton has 2270 states and 2848 transitions. Word has length 216 [2018-11-23 13:53:49,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:53:49,574 INFO L480 AbstractCegarLoop]: Abstraction has 2270 states and 2848 transitions. [2018-11-23 13:53:49,574 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-23 13:53:49,574 INFO L276 IsEmpty]: Start isEmpty. Operand 2270 states and 2848 transitions. [2018-11-23 13:53:49,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-11-23 13:53:49,578 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:53:49,579 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:53:49,579 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:53:49,579 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:53:49,579 INFO L82 PathProgramCache]: Analyzing trace with hash 905246047, now seen corresponding path program 2 times [2018-11-23 13:53:49,579 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:53:49,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:53:49,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:53:49,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:53:49,580 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:53:49,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:53:49,653 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 92 proven. 53 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-11-23 13:53:49,653 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:53:49,653 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 13:53:49,653 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-23 13:53:49,653 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-23 13:53:49,653 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:53:49,653 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bb3b5795-0a1a-49b0-8b2c-834c3ff52e2f/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 [2018-11-23 13:53:49,662 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-23 13:53:49,662 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-23 13:53:49,716 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-11-23 13:53:49,716 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 13:53:49,721 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:53:49,787 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-11-23 13:53:49,787 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 13:53:49,876 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-11-23 13:53:49,896 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-23 13:53:49,897 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [9] total 10 [2018-11-23 13:53:49,897 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:53:49,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 13:53:49,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 13:53:49,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-11-23 13:53:49,898 INFO L87 Difference]: Start difference. First operand 2270 states and 2848 transitions. Second operand 3 states. [2018-11-23 13:53:50,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:53:50,160 INFO L93 Difference]: Finished difference Result 5081 states and 6554 transitions. [2018-11-23 13:53:50,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 13:53:50,161 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 216 [2018-11-23 13:53:50,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:53:50,161 INFO L225 Difference]: With dead ends: 5081 [2018-11-23 13:53:50,161 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 13:53:50,171 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 431 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-11-23 13:53:50,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 13:53:50,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 13:53:50,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 13:53:50,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 13:53:50,171 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 216 [2018-11-23 13:53:50,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:53:50,172 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 13:53:50,172 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 13:53:50,172 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 13:53:50,172 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 13:53:50,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 13:53:50,812 WARN L180 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 89 [2018-11-23 13:53:50,945 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 13:53:50,945 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(~a20~0)| ~a20~0) (= |old(~a16~0)| ~a16~0)) [2018-11-23 13:53:50,945 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 13:53:50,945 INFO L448 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2018-11-23 13:53:50,945 INFO L448 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2018-11-23 13:53:50,945 INFO L448 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,945 INFO L448 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,945 INFO L448 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,945 INFO L448 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,946 INFO L448 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,946 INFO L448 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,946 INFO L448 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2018-11-23 13:53:50,946 INFO L448 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2018-11-23 13:53:50,946 INFO L448 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2018-11-23 13:53:50,946 INFO L448 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2018-11-23 13:53:50,946 INFO L448 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2018-11-23 13:53:50,946 INFO L448 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2018-11-23 13:53:50,946 INFO L448 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2018-11-23 13:53:50,946 INFO L448 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2018-11-23 13:53:50,946 INFO L448 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2018-11-23 13:53:50,946 INFO L448 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2018-11-23 13:53:50,946 INFO L448 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,946 INFO L448 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,946 INFO L448 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,947 INFO L448 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,947 INFO L448 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,947 INFO L448 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,947 INFO L448 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2018-11-23 13:53:50,947 INFO L448 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2018-11-23 13:53:50,947 INFO L448 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2018-11-23 13:53:50,947 INFO L448 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2018-11-23 13:53:50,947 INFO L448 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2018-11-23 13:53:50,947 INFO L448 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2018-11-23 13:53:50,947 INFO L448 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2018-11-23 13:53:50,947 INFO L448 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2018-11-23 13:53:50,947 INFO L448 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2018-11-23 13:53:50,947 INFO L448 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2018-11-23 13:53:50,947 INFO L448 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2018-11-23 13:53:50,947 INFO L448 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2018-11-23 13:53:50,947 INFO L448 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2018-11-23 13:53:50,948 INFO L448 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2018-11-23 13:53:50,948 INFO L448 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2018-11-23 13:53:50,948 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 521) no Hoare annotation was computed. [2018-11-23 13:53:50,948 INFO L448 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,948 INFO L448 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,948 INFO L448 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,948 INFO L448 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,948 INFO L448 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,948 INFO L448 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2018-11-23 13:53:50,948 INFO L448 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2018-11-23 13:53:50,948 INFO L448 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2018-11-23 13:53:50,948 INFO L448 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2018-11-23 13:53:50,948 INFO L448 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2018-11-23 13:53:50,948 INFO L448 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2018-11-23 13:53:50,948 INFO L448 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2018-11-23 13:53:50,949 INFO L448 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2018-11-23 13:53:50,949 INFO L448 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2018-11-23 13:53:50,949 INFO L448 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,949 INFO L448 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,949 INFO L448 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,949 INFO L448 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,949 INFO L448 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,949 INFO L448 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2018-11-23 13:53:50,949 INFO L448 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2018-11-23 13:53:50,949 INFO L448 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2018-11-23 13:53:50,949 INFO L448 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2018-11-23 13:53:50,949 INFO L448 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2018-11-23 13:53:50,949 INFO L448 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2018-11-23 13:53:50,949 INFO L448 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2018-11-23 13:53:50,949 INFO L448 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2018-11-23 13:53:50,949 INFO L448 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2018-11-23 13:53:50,950 INFO L448 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2018-11-23 13:53:50,950 INFO L448 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2018-11-23 13:53:50,950 INFO L448 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2018-11-23 13:53:50,950 INFO L448 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2018-11-23 13:53:50,950 INFO L448 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,950 INFO L448 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,950 INFO L448 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,950 INFO L448 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,950 INFO L448 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,950 INFO L448 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2018-11-23 13:53:50,950 INFO L448 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2018-11-23 13:53:50,950 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2018-11-23 13:53:50,950 INFO L448 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2018-11-23 13:53:50,950 INFO L448 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2018-11-23 13:53:50,950 INFO L448 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2018-11-23 13:53:50,950 INFO L448 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2018-11-23 13:53:50,951 INFO L448 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2018-11-23 13:53:50,951 INFO L448 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2018-11-23 13:53:50,951 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,951 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,951 INFO L448 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,951 INFO L448 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,951 INFO L448 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,951 INFO L448 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,951 INFO L448 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2018-11-23 13:53:50,951 INFO L448 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,951 INFO L448 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2018-11-23 13:53:50,951 INFO L448 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2018-11-23 13:53:50,951 INFO L448 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2018-11-23 13:53:50,951 INFO L448 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2018-11-23 13:53:50,951 INFO L448 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2018-11-23 13:53:50,951 INFO L448 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2018-11-23 13:53:50,952 INFO L448 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2018-11-23 13:53:50,952 INFO L448 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2018-11-23 13:53:50,952 INFO L448 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2018-11-23 13:53:50,952 INFO L448 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2018-11-23 13:53:50,952 INFO L448 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2018-11-23 13:53:50,952 INFO L448 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2018-11-23 13:53:50,952 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2018-11-23 13:53:50,952 INFO L448 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,952 INFO L448 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,952 INFO L448 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,952 INFO L448 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,952 INFO L448 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,952 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2018-11-23 13:53:50,952 INFO L448 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2018-11-23 13:53:50,952 INFO L448 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2018-11-23 13:53:50,952 INFO L448 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2018-11-23 13:53:50,953 INFO L448 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2018-11-23 13:53:50,953 INFO L448 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2018-11-23 13:53:50,953 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2018-11-23 13:53:50,953 INFO L448 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2018-11-23 13:53:50,953 INFO L448 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,953 INFO L448 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,953 INFO L448 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,953 INFO L448 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,953 INFO L448 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,953 INFO L448 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2018-11-23 13:53:50,953 INFO L448 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2018-11-23 13:53:50,953 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2018-11-23 13:53:50,953 INFO L448 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2018-11-23 13:53:50,953 INFO L448 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2018-11-23 13:53:50,953 INFO L448 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2018-11-23 13:53:50,954 INFO L448 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2018-11-23 13:53:50,954 INFO L448 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2018-11-23 13:53:50,954 INFO L448 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2018-11-23 13:53:50,954 INFO L448 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2018-11-23 13:53:50,954 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse23 (= |old(~a20~0)| ~a20~0)) (.cse24 (= |old(~a16~0)| ~a16~0)) (.cse19 (= 13 |old(~a8~0)|))) (let ((.cse14 (not (= 5 |old(~a16~0)|))) (.cse12 (= ~a17~0 1)) (.cse3 (not (= 4 |old(~a16~0)|))) (.cse5 (= 13 ~a8~0)) (.cse6 (= 1 ~a21~0)) (.cse7 (= 1 ~a17~0)) (.cse1 (= 1 |old(~a7~0)|)) (.cse8 (not .cse19)) (.cse9 (not (= 1 |old(~a17~0)|))) (.cse20 (and .cse23 .cse24)) (.cse11 (= |calculate_output_#in~input| 0)) (.cse16 (= ~a8~0 15)) (.cse17 (= ~a21~0 1)) (.cse15 (= ~a7~0 0)) (.cse21 (= 6 |old(~a16~0)|)) (.cse10 (not (= 0 |old(~a7~0)|))) (.cse0 (not (= 1 |old(~a21~0)|))) (.cse2 (not (= 1 |old(~a20~0)|))) (.cse13 (not (= 15 |old(~a8~0)|))) (.cse18 (not (= ~a8~0 13))) (.cse4 (not (= 8 ~a12~0))) (.cse22 (< 0 |old(~a20~0)|))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 (and (not (= ~a7~0 1)) .cse5 .cse6 .cse7) .cse8 .cse9) (or .cse10 .cse0 .cse4 .cse11 .cse9 .cse12 .cse2 .cse13 .cse14) (or (or .cse10 .cse0 .cse13 (not (= 0 |old(~a20~0)|)) .cse14 .cse4) .cse11 (and .cse15 .cse16 .cse12 .cse17) .cse9) (or .cse2 .cse18 .cse19 .cse4) (or .cse0 .cse2 .cse3 (and (= 1 ~a7~0) .cse5 .cse6 .cse7) .cse4 (not .cse1) .cse8 .cse9) (or .cse2 .cse20 .cse4) (or .cse21 .cse10 .cse0 .cse2 .cse13 (= 0 |old(~a16~0)|) .cse4 .cse11 (and .cse16 .cse17 .cse15)) (or (< 4 |old(~a16~0)|) .cse20 .cse4 .cse22) (or .cse11 (and .cse16 .cse17 (= ~a17~0 0) .cse15) (or (not .cse21) .cse10 .cse0 .cse2 .cse13 (not (= 0 |old(~a17~0)|)) .cse4)) (or (and .cse23 .cse24 .cse18) .cse19 .cse4 .cse22)))) [2018-11-23 13:53:50,954 INFO L448 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2018-11-23 13:53:50,954 INFO L448 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,954 INFO L448 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,954 INFO L448 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,954 INFO L448 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,954 INFO L448 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2018-11-23 13:53:50,955 INFO L448 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,955 INFO L448 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,955 INFO L448 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2018-11-23 13:53:50,955 INFO L448 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2018-11-23 13:53:50,955 INFO L448 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2018-11-23 13:53:50,955 INFO L448 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2018-11-23 13:53:50,955 INFO L448 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2018-11-23 13:53:50,955 INFO L448 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2018-11-23 13:53:50,955 INFO L448 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2018-11-23 13:53:50,955 INFO L448 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2018-11-23 13:53:50,955 INFO L448 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2018-11-23 13:53:50,955 INFO L448 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2018-11-23 13:53:50,955 INFO L448 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2018-11-23 13:53:50,955 INFO L448 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2018-11-23 13:53:50,955 INFO L448 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,955 INFO L448 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,956 INFO L448 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,956 INFO L448 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,956 INFO L448 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,956 INFO L448 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2018-11-23 13:53:50,956 INFO L448 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,956 INFO L448 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2018-11-23 13:53:50,956 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2018-11-23 13:53:50,956 INFO L448 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2018-11-23 13:53:50,956 INFO L448 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2018-11-23 13:53:50,956 INFO L448 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2018-11-23 13:53:50,956 INFO L448 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2018-11-23 13:53:50,956 INFO L448 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2018-11-23 13:53:50,956 INFO L448 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2018-11-23 13:53:50,956 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2018-11-23 13:53:50,956 INFO L448 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2018-11-23 13:53:50,956 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2018-11-23 13:53:50,957 INFO L448 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2018-11-23 13:53:50,957 INFO L448 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2018-11-23 13:53:50,957 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2018-11-23 13:53:50,957 INFO L448 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,957 INFO L448 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,957 INFO L448 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,957 INFO L448 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,957 INFO L448 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,957 INFO L448 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 13:53:50,957 INFO L448 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2018-11-23 13:53:50,957 INFO L448 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2018-11-23 13:53:50,957 INFO L448 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2018-11-23 13:53:50,957 INFO L448 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2018-11-23 13:53:50,957 INFO L448 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2018-11-23 13:53:50,957 INFO L448 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2018-11-23 13:53:50,957 INFO L448 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2018-11-23 13:53:50,958 INFO L448 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2018-11-23 13:53:50,958 INFO L448 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2018-11-23 13:53:50,958 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2018-11-23 13:53:50,958 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 13:53:50,958 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a7~0 0) (= ~a8~0 15) (= ~a17~0 1) (= ~a12~0 8) (= ~a21~0 1) (= ~a20~0 1) (= ~a16~0 5)) [2018-11-23 13:53:50,958 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 13:53:50,958 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 13:53:50,958 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a21~0)|)) (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (not (= 5 |old(~a16~0)|)) (and (= ~a8~0 15) (= ~a17~0 1) (= ~a21~0 1) (= ~a7~0 0) (= ~a20~0 1) (= ~a16~0 5)) (not (= 8 ~a12~0)) (not (= 1 |old(~a17~0)|))) [2018-11-23 13:53:50,958 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2018-11-23 13:53:50,958 INFO L444 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (<= ~a20~0 0))) (or (and .cse0 (not (= ~a8~0 13))) (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0)) (and .cse0 (<= ~a16~0 4)) (= |old(~a20~0)| ~a20~0) (not (= 1 |old(~a17~0)|)) (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (not (= 5 |old(~a16~0)|)))) [2018-11-23 13:53:50,958 INFO L448 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2018-11-23 13:53:50,958 INFO L448 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2018-11-23 13:53:50,959 INFO L444 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (<= ~a20~0 0))) (or (and .cse0 (not (= ~a8~0 13))) (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0)) (and .cse0 (<= ~a16~0 4)) (= |old(~a20~0)| ~a20~0) (not (= 1 |old(~a17~0)|)) (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (not (= 5 |old(~a16~0)|)))) [2018-11-23 13:53:50,959 INFO L448 ceAbstractionStarter]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2018-11-23 13:53:50,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:53:50 BoogieIcfgContainer [2018-11-23 13:53:50,968 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 13:53:50,969 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 13:53:50,969 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 13:53:50,969 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 13:53:50,969 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:53:34" (3/4) ... [2018-11-23 13:53:50,975 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 13:53:50,980 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 13:53:50,980 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-23 13:53:50,981 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 13:53:50,997 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 13:53:50,998 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 13:53:51,016 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((a20 <= 0 && !(a8 == 13)) || !(0 == \old(a7))) || !(1 == \old(a21))) || !(8 == a12)) || (a20 <= 0 && a16 <= 4)) || \old(a20) == a20) || !(1 == \old(a17))) || !(1 == \old(a20))) || !(15 == \old(a8))) || !(5 == \old(a16)) [2018-11-23 13:53:51,086 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_bb3b5795-0a1a-49b0-8b2c-834c3ff52e2f/bin-2019/utaipan/witness.graphml [2018-11-23 13:53:51,086 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 13:53:51,087 INFO L168 Benchmark]: Toolchain (without parser) took 17724.29 ms. Allocated memory was 1.0 GB in the beginning and 2.0 GB in the end (delta: 995.1 MB). Free memory was 955.5 MB in the beginning and 1.8 GB in the end (delta: -842.2 MB). Peak memory consumption was 152.9 MB. Max. memory is 11.5 GB. [2018-11-23 13:53:51,088 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:53:51,088 INFO L168 Benchmark]: CACSL2BoogieTranslator took 375.09 ms. Allocated memory is still 1.0 GB. Free memory was 955.5 MB in the beginning and 923.2 MB in the end (delta: 32.3 MB). Peak memory consumption was 32.3 MB. Max. memory is 11.5 GB. [2018-11-23 13:53:51,088 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 923.2 MB in the beginning and 1.1 GB in the end (delta: -200.8 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-11-23 13:53:51,088 INFO L168 Benchmark]: Boogie Preprocessor took 51.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 13:53:51,089 INFO L168 Benchmark]: RCFGBuilder took 775.46 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: 101.3 MB). Peak memory consumption was 101.3 MB. Max. memory is 11.5 GB. [2018-11-23 13:53:51,089 INFO L168 Benchmark]: TraceAbstraction took 16325.01 ms. Allocated memory was 1.2 GB in the beginning and 2.0 GB in the end (delta: 866.6 MB). Free memory was 1.0 GB in the beginning and 1.8 GB in the end (delta: -801.8 MB). Peak memory consumption was 843.8 MB. Max. memory is 11.5 GB. [2018-11-23 13:53:51,089 INFO L168 Benchmark]: Witness Printer took 117.56 ms. Allocated memory is still 2.0 GB. Free memory was 1.8 GB in the beginning and 1.8 GB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. [2018-11-23 13:53:51,091 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 375.09 ms. Allocated memory is still 1.0 GB. Free memory was 955.5 MB in the beginning and 923.2 MB in the end (delta: 32.3 MB). Peak memory consumption was 32.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 76.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 923.2 MB in the beginning and 1.1 GB in the end (delta: -200.8 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 775.46 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: 101.3 MB). Peak memory consumption was 101.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 16325.01 ms. Allocated memory was 1.2 GB in the beginning and 2.0 GB in the end (delta: 866.6 MB). Free memory was 1.0 GB in the beginning and 1.8 GB in the end (delta: -801.8 MB). Peak memory consumption was 843.8 MB. Max. memory is 11.5 GB. * Witness Printer took 117.56 ms. Allocated memory is still 2.0 GB. Free memory was 1.8 GB in the beginning and 1.8 GB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 521]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((a20 <= 0 && !(a8 == 13)) || !(0 == \old(a7))) || !(1 == \old(a21))) || !(8 == a12)) || (a20 <= 0 && a16 <= 4)) || \old(a20) == a20) || !(1 == \old(a17))) || !(1 == \old(a20))) || !(15 == \old(a8))) || !(5 == \old(a16)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. SAFE Result, 16.2s OverallTime, 10 OverallIterations, 5 TraceHistogramMax, 11.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 1361 SDtfs, 5716 SDslu, 1266 SDs, 0 SdLazy, 6911 SolverSat, 1174 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.8s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 1493 GetRequests, 1403 SyntacticMatches, 13 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2270occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.1s AbstIntTime, 4 AbstIntIterations, 3 AbstIntStrong, 0.9973795719490527 AbsIntWeakeningRatio, 0.21389396709323583 AbsIntAvgWeakeningVarsNumRemoved, 29.6617915904936 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 32 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 86 PreInvPairs, 132 NumberOfFragments, 499 HoareAnnotationTreeSize, 86 FomulaSimplifications, 1865 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1346 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 2067 NumberOfCodeBlocks, 2003 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2485 ConstructedInterpolants, 0 QuantifiedInterpolants, 1477777 SizeOfPredicates, 3 NumberOfNonLiveVariables, 983 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 14 InterpolantComputations, 7 PerfectInterpolantSequences, 1132/1314 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...