./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label27_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_680ab542-c67a-4ffa-9ee7-f02208c44acc/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_680ab542-c67a-4ffa-9ee7-f02208c44acc/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_680ab542-c67a-4ffa-9ee7-f02208c44acc/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_680ab542-c67a-4ffa-9ee7-f02208c44acc/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label27_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_680ab542-c67a-4ffa-9ee7-f02208c44acc/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_680ab542-c67a-4ffa-9ee7-f02208c44acc/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 da926431bbc0b86d3a4186d79a03e568e3df4dd8 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 19:02:26,310 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:02:26,312 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:02:26,318 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:02:26,318 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:02:26,318 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:02:26,319 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:02:26,320 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:02:26,321 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:02:26,321 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:02:26,322 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:02:26,322 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:02:26,323 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:02:26,323 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:02:26,324 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:02:26,324 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:02:26,325 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:02:26,326 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:02:26,327 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:02:26,327 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:02:26,328 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:02:26,329 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:02:26,330 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:02:26,330 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:02:26,330 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:02:26,331 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:02:26,331 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:02:26,332 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:02:26,332 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:02:26,333 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:02:26,333 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:02:26,333 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:02:26,334 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:02:26,334 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:02:26,334 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:02:26,335 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:02:26,335 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_680ab542-c67a-4ffa-9ee7-f02208c44acc/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 19:02:26,342 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:02:26,343 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:02:26,343 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:02:26,343 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:02:26,343 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:02:26,344 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:02:26,344 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:02:26,344 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 19:02:26,344 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:02:26,344 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:02:26,344 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 19:02:26,344 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 19:02:26,345 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:02:26,345 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:02:26,345 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:02:26,345 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 19:02:26,345 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:02:26,346 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:02:26,346 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:02:26,346 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:02:26,346 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:02:26,346 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:02:26,346 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:02:26,346 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:02:26,346 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:02:26,346 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:02:26,347 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:02:26,347 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:02:26,347 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:02:26,347 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:02:26,347 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:02:26,347 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:02:26,347 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 19:02:26,347 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:02:26,348 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 19:02:26,348 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 19:02:26,348 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_680ab542-c67a-4ffa-9ee7-f02208c44acc/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 -> da926431bbc0b86d3a4186d79a03e568e3df4dd8 [2018-12-09 19:02:26,366 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:02:26,375 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:02:26,378 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:02:26,379 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:02:26,380 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:02:26,380 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_680ab542-c67a-4ffa-9ee7-f02208c44acc/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem10_label27_true-unreach-call.c [2018-12-09 19:02:26,418 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_680ab542-c67a-4ffa-9ee7-f02208c44acc/bin-2019/utaipan/data/1c2e31cc4/07124ad5d0d14eb1b47eae053e317b52/FLAGc18eb3251 [2018-12-09 19:02:26,848 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:02:26,848 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_680ab542-c67a-4ffa-9ee7-f02208c44acc/sv-benchmarks/c/eca-rers2012/Problem10_label27_true-unreach-call.c [2018-12-09 19:02:26,856 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_680ab542-c67a-4ffa-9ee7-f02208c44acc/bin-2019/utaipan/data/1c2e31cc4/07124ad5d0d14eb1b47eae053e317b52/FLAGc18eb3251 [2018-12-09 19:02:26,867 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_680ab542-c67a-4ffa-9ee7-f02208c44acc/bin-2019/utaipan/data/1c2e31cc4/07124ad5d0d14eb1b47eae053e317b52 [2018-12-09 19:02:26,868 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:02:26,869 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:02:26,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:02:26,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:02:26,872 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:02:26,872 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:02:26" (1/1) ... [2018-12-09 19:02:26,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fdfc843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:26, skipping insertion in model container [2018-12-09 19:02:26,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:02:26" (1/1) ... [2018-12-09 19:02:26,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:02:26,909 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:02:27,093 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:02:27,096 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:02:27,146 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:02:27,197 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:02:27,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:27 WrapperNode [2018-12-09 19:02:27,197 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:02:27,197 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:02:27,198 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:02:27,198 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:02:27,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:27" (1/1) ... [2018-12-09 19:02:27,214 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:27" (1/1) ... [2018-12-09 19:02:27,221 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:02:27,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:02:27,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:02:27,221 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:02:27,227 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:27" (1/1) ... [2018-12-09 19:02:27,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:27" (1/1) ... [2018-12-09 19:02:27,230 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:27" (1/1) ... [2018-12-09 19:02:27,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:27" (1/1) ... [2018-12-09 19:02:27,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:27" (1/1) ... [2018-12-09 19:02:27,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:27" (1/1) ... [2018-12-09 19:02:27,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:27" (1/1) ... [2018-12-09 19:02:27,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:02:27,272 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:02:27,272 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:02:27,272 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:02:27,273 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_680ab542-c67a-4ffa-9ee7-f02208c44acc/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:02:27,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:02:27,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:02:27,314 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-12-09 19:02:27,315 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-12-09 19:02:27,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:02:27,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:02:27,315 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:02:27,315 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:02:27,854 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:02:27,854 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 19:02:27,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:02:27 BoogieIcfgContainer [2018-12-09 19:02:27,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:02:27,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:02:27,855 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:02:27,857 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:02:27,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:02:26" (1/3) ... [2018-12-09 19:02:27,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14c0c0d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:02:27, skipping insertion in model container [2018-12-09 19:02:27,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:27" (2/3) ... [2018-12-09 19:02:27,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14c0c0d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:02:27, skipping insertion in model container [2018-12-09 19:02:27,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:02:27" (3/3) ... [2018-12-09 19:02:27,859 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label27_true-unreach-call.c [2018-12-09 19:02:27,865 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:02:27,871 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 19:02:27,880 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 19:02:27,904 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:02:27,904 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:02:27,904 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:02:27,904 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:02:27,904 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:02:27,904 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:02:27,904 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:02:27,905 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:02:27,922 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2018-12-09 19:02:27,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-12-09 19:02:27,928 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:02:27,929 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] [2018-12-09 19:02:27,930 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:02:27,934 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:02:27,934 INFO L82 PathProgramCache]: Analyzing trace with hash 215216599, now seen corresponding path program 1 times [2018-12-09 19:02:27,935 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:02:27,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:02:27,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:02:27,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:02:27,967 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:02:28,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:02:28,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:02:28,158 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:02:28,158 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 19:02:28,158 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:02:28,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 19:02:28,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 19:02:28,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 19:02:28,172 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 4 states. [2018-12-09 19:02:28,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:02:28,855 INFO L93 Difference]: Finished difference Result 733 states and 1294 transitions. [2018-12-09 19:02:28,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 19:02:28,856 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 66 [2018-12-09 19:02:28,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:02:28,865 INFO L225 Difference]: With dead ends: 733 [2018-12-09 19:02:28,865 INFO L226 Difference]: Without dead ends: 437 [2018-12-09 19:02:28,869 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 19:02:28,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2018-12-09 19:02:28,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 294. [2018-12-09 19:02:28,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2018-12-09 19:02:28,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 446 transitions. [2018-12-09 19:02:28,907 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 446 transitions. Word has length 66 [2018-12-09 19:02:28,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:02:28,908 INFO L480 AbstractCegarLoop]: Abstraction has 294 states and 446 transitions. [2018-12-09 19:02:28,908 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 19:02:28,908 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 446 transitions. [2018-12-09 19:02:28,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-12-09 19:02:28,911 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:02:28,911 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-09 19:02:28,912 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:02:28,912 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:02:28,912 INFO L82 PathProgramCache]: Analyzing trace with hash -51785766, now seen corresponding path program 1 times [2018-12-09 19:02:28,912 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:02:28,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:02:28,913 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:02:28,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:02:28,914 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:02:28,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:02:29,075 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 19:02:29,075 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:02:29,075 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 19:02:29,076 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2018-12-09 19:02:29,078 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [437], [439], [442], [450], [458], [466], [474], [482], [490], [495], [498], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-12-09 19:02:29,109 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 19:02:29,109 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 19:02:29,426 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 19:02:29,427 INFO L272 AbstractInterpreter]: Visited 77 different actions 218 times. Merged at 4 different actions 7 times. Never widened. Performed 1947 root evaluator evaluations with a maximum evaluation depth of 7. Performed 1947 inverse root evaluator evaluations with a maximum inverse evaluation depth of 7. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-12-09 19:02:29,432 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:02:29,433 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 19:02:29,608 INFO L227 lantSequenceWeakener]: Weakened 133 states. On average, predicates are now at 76.59% of their original sizes. [2018-12-09 19:02:29,609 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 19:02:29,661 INFO L418 sIntCurrentIteration]: We unified 135 AI predicates to 135 [2018-12-09 19:02:29,662 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 19:02:29,662 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 19:02:29,663 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 12 [2018-12-09 19:02:29,663 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:02:29,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 19:02:29,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 19:02:29,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 19:02:29,665 INFO L87 Difference]: Start difference. First operand 294 states and 446 transitions. Second operand 10 states. [2018-12-09 19:02:44,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:02:44,964 INFO L93 Difference]: Finished difference Result 1323 states and 2043 transitions. [2018-12-09 19:02:44,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-09 19:02:44,965 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 136 [2018-12-09 19:02:44,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:02:44,968 INFO L225 Difference]: With dead ends: 1323 [2018-12-09 19:02:44,968 INFO L226 Difference]: Without dead ends: 1035 [2018-12-09 19:02:44,969 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 146 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2018-12-09 19:02:44,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states. [2018-12-09 19:02:44,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 1019. [2018-12-09 19:02:44,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1019 states. [2018-12-09 19:02:45,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1303 transitions. [2018-12-09 19:02:45,000 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1303 transitions. Word has length 136 [2018-12-09 19:02:45,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:02:45,001 INFO L480 AbstractCegarLoop]: Abstraction has 1019 states and 1303 transitions. [2018-12-09 19:02:45,001 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 19:02:45,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1303 transitions. [2018-12-09 19:02:45,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2018-12-09 19:02:45,007 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:02:45,008 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:02:45,008 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:02:45,008 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:02:45,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1865512755, now seen corresponding path program 1 times [2018-12-09 19:02:45,009 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:02:45,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:02:45,010 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:02:45,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:02:45,010 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:02:45,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:02:45,167 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 119 proven. 5 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-12-09 19:02:45,167 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:02:45,194 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 19:02:45,194 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 227 with the following transitions: [2018-12-09 19:02:45,195 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [437], [439], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [542], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-12-09 19:02:45,197 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 19:02:45,198 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 19:02:45,288 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 19:02:45,288 INFO L272 AbstractInterpreter]: Visited 90 different actions 264 times. Merged at 6 different actions 15 times. Never widened. Performed 2542 root evaluator evaluations with a maximum evaluation depth of 8. Performed 2542 inverse root evaluator evaluations with a maximum inverse evaluation depth of 8. Found 3 fixpoints after 3 different actions. Largest state had 24 variables. [2018-12-09 19:02:45,289 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:02:45,290 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 19:02:45,290 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:02:45,290 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_680ab542-c67a-4ffa-9ee7-f02208c44acc/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 19:02:45,300 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:02:45,300 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 19:02:45,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:02:45,353 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:02:45,420 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 195 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:02:45,420 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 19:02:45,487 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 195 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:02:45,503 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 19:02:45,503 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 12 [2018-12-09 19:02:45,503 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 19:02:45,503 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 19:02:45,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 19:02:45,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-12-09 19:02:45,504 INFO L87 Difference]: Start difference. First operand 1019 states and 1303 transitions. Second operand 11 states. [2018-12-09 19:02:46,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:02:46,858 INFO L93 Difference]: Finished difference Result 3351 states and 4620 transitions. [2018-12-09 19:02:46,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-12-09 19:02:46,858 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 226 [2018-12-09 19:02:46,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:02:46,866 INFO L225 Difference]: With dead ends: 3351 [2018-12-09 19:02:46,866 INFO L226 Difference]: Without dead ends: 2183 [2018-12-09 19:02:46,869 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 484 GetRequests, 456 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=169, Invalid=431, Unknown=0, NotChecked=0, Total=600 [2018-12-09 19:02:46,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2183 states. [2018-12-09 19:02:46,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2183 to 2040. [2018-12-09 19:02:46,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2040 states. [2018-12-09 19:02:46,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2040 states to 2040 states and 2443 transitions. [2018-12-09 19:02:46,906 INFO L78 Accepts]: Start accepts. Automaton has 2040 states and 2443 transitions. Word has length 226 [2018-12-09 19:02:46,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:02:46,906 INFO L480 AbstractCegarLoop]: Abstraction has 2040 states and 2443 transitions. [2018-12-09 19:02:46,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 19:02:46,906 INFO L276 IsEmpty]: Start isEmpty. Operand 2040 states and 2443 transitions. [2018-12-09 19:02:46,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2018-12-09 19:02:46,909 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:02:46,909 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:02:46,909 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:02:46,909 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:02:46,910 INFO L82 PathProgramCache]: Analyzing trace with hash -726757061, now seen corresponding path program 1 times [2018-12-09 19:02:46,910 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:02:46,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:02:46,910 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:02:46,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:02:46,910 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:02:46,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:02:47,046 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 60 proven. 136 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 19:02:47,046 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:02:47,046 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 19:02:47,046 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 263 with the following transitions: [2018-12-09 19:02:47,047 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [437], [439], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-12-09 19:02:47,049 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 19:02:47,049 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 19:02:47,176 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 19:02:47,176 INFO L272 AbstractInterpreter]: Visited 124 different actions 364 times. Merged at 6 different actions 14 times. Never widened. Performed 3824 root evaluator evaluations with a maximum evaluation depth of 13. Performed 3824 inverse root evaluator evaluations with a maximum inverse evaluation depth of 13. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-09 19:02:47,181 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:02:47,181 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 19:02:47,181 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:02:47,181 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_680ab542-c67a-4ffa-9ee7-f02208c44acc/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 19:02:47,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:02:47,187 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 19:02:47,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:02:47,229 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:02:47,259 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-12-09 19:02:47,259 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 19:02:47,305 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-12-09 19:02:47,320 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-09 19:02:47,320 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 9 [2018-12-09 19:02:47,320 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:02:47,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 19:02:47,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 19:02:47,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-12-09 19:02:47,321 INFO L87 Difference]: Start difference. First operand 2040 states and 2443 transitions. Second operand 3 states. [2018-12-09 19:02:47,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:02:47,657 INFO L93 Difference]: Finished difference Result 4658 states and 5618 transitions. [2018-12-09 19:02:47,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 19:02:47,658 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 262 [2018-12-09 19:02:47,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:02:47,666 INFO L225 Difference]: With dead ends: 4658 [2018-12-09 19:02:47,666 INFO L226 Difference]: Without dead ends: 2622 [2018-12-09 19:02:47,670 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 524 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-12-09 19:02:47,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2622 states. [2018-12-09 19:02:47,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2622 to 2477. [2018-12-09 19:02:47,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2477 states. [2018-12-09 19:02:47,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2477 states to 2477 states and 2926 transitions. [2018-12-09 19:02:47,723 INFO L78 Accepts]: Start accepts. Automaton has 2477 states and 2926 transitions. Word has length 262 [2018-12-09 19:02:47,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:02:47,724 INFO L480 AbstractCegarLoop]: Abstraction has 2477 states and 2926 transitions. [2018-12-09 19:02:47,724 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 19:02:47,724 INFO L276 IsEmpty]: Start isEmpty. Operand 2477 states and 2926 transitions. [2018-12-09 19:02:47,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2018-12-09 19:02:47,727 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:02:47,727 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:02:47,727 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:02:47,727 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:02:47,728 INFO L82 PathProgramCache]: Analyzing trace with hash 391733520, now seen corresponding path program 1 times [2018-12-09 19:02:47,728 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:02:47,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:02:47,728 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:02:47,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:02:47,728 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:02:47,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:02:47,828 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 158 proven. 58 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-09 19:02:47,828 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:02:47,828 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 19:02:47,828 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 284 with the following transitions: [2018-12-09 19:02:47,828 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [437], [439], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [626], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-12-09 19:02:47,831 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 19:02:47,832 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 19:02:47,961 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 19:02:47,961 INFO L272 AbstractInterpreter]: Visited 124 different actions 362 times. Merged at 6 different actions 12 times. Never widened. Performed 3794 root evaluator evaluations with a maximum evaluation depth of 13. Performed 3794 inverse root evaluator evaluations with a maximum inverse evaluation depth of 13. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-09 19:02:47,963 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:02:47,963 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 19:02:47,963 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:02:47,963 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_680ab542-c67a-4ffa-9ee7-f02208c44acc/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 19:02:47,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:02:47,969 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 19:02:48,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:02:48,009 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:02:48,054 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2018-12-09 19:02:48,054 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 19:02:48,094 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2018-12-09 19:02:48,109 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-09 19:02:48,109 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 6 [2018-12-09 19:02:48,109 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:02:48,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 19:02:48,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 19:02:48,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 19:02:48,110 INFO L87 Difference]: Start difference. First operand 2477 states and 2926 transitions. Second operand 3 states. [2018-12-09 19:02:48,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:02:48,355 INFO L93 Difference]: Finished difference Result 5091 states and 6121 transitions. [2018-12-09 19:02:48,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 19:02:48,356 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 283 [2018-12-09 19:02:48,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:02:48,361 INFO L225 Difference]: With dead ends: 5091 [2018-12-09 19:02:48,362 INFO L226 Difference]: Without dead ends: 2763 [2018-12-09 19:02:48,364 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 572 GetRequests, 566 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 19:02:48,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2018-12-09 19:02:48,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2616. [2018-12-09 19:02:48,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2616 states. [2018-12-09 19:02:48,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2616 states to 2616 states and 3076 transitions. [2018-12-09 19:02:48,397 INFO L78 Accepts]: Start accepts. Automaton has 2616 states and 3076 transitions. Word has length 283 [2018-12-09 19:02:48,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:02:48,398 INFO L480 AbstractCegarLoop]: Abstraction has 2616 states and 3076 transitions. [2018-12-09 19:02:48,398 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 19:02:48,398 INFO L276 IsEmpty]: Start isEmpty. Operand 2616 states and 3076 transitions. [2018-12-09 19:02:48,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2018-12-09 19:02:48,402 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:02:48,402 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-09 19:02:48,402 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:02:48,402 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:02:48,402 INFO L82 PathProgramCache]: Analyzing trace with hash -2059423188, now seen corresponding path program 1 times [2018-12-09 19:02:48,402 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:02:48,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:02:48,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:02:48,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:02:48,403 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:02:48,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:02:48,510 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-12-09 19:02:48,510 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:02:48,511 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 19:02:48,511 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:02:48,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 19:02:48,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 19:02:48,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 19:02:48,511 INFO L87 Difference]: Start difference. First operand 2616 states and 3076 transitions. Second operand 4 states. [2018-12-09 19:02:48,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:02:48,802 INFO L93 Difference]: Finished difference Result 2759 states and 3220 transitions. [2018-12-09 19:02:48,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 19:02:48,802 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 317 [2018-12-09 19:02:48,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:02:48,803 INFO L225 Difference]: With dead ends: 2759 [2018-12-09 19:02:48,803 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 19:02:48,805 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 19:02:48,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 19:02:48,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 19:02:48,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 19:02:48,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 19:02:48,805 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 317 [2018-12-09 19:02:48,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:02:48,806 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 19:02:48,806 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 19:02:48,806 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 19:02:48,806 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 19:02:48,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 19:02:48,841 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 19:02:48,851 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 19:02:49,286 WARN L180 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 75 [2018-12-09 19:02:49,434 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 19:02:49,434 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |old(~a19~0)| ~a19~0) [2018-12-09 19:02:49,434 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 19:02:49,434 INFO L448 ceAbstractionStarter]: For program point L465(lines 465 572) no Hoare annotation was computed. [2018-12-09 19:02:49,435 INFO L448 ceAbstractionStarter]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,435 INFO L448 ceAbstractionStarter]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,435 INFO L448 ceAbstractionStarter]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,435 INFO L448 ceAbstractionStarter]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,435 INFO L448 ceAbstractionStarter]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,435 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,435 INFO L448 ceAbstractionStarter]: For program point L499(lines 499 572) no Hoare annotation was computed. [2018-12-09 19:02:49,435 INFO L448 ceAbstractionStarter]: For program point L301(lines 301 572) no Hoare annotation was computed. [2018-12-09 19:02:49,435 INFO L448 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-12-09 19:02:49,435 INFO L448 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-12-09 19:02:49,435 INFO L448 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-12-09 19:02:49,435 INFO L448 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-12-09 19:02:49,435 INFO L448 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-12-09 19:02:49,435 INFO L448 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-12-09 19:02:49,435 INFO L448 ceAbstractionStarter]: For program point L335(lines 335 572) no Hoare annotation was computed. [2018-12-09 19:02:49,435 INFO L448 ceAbstractionStarter]: For program point L236(lines 236 572) no Hoare annotation was computed. [2018-12-09 19:02:49,435 INFO L448 ceAbstractionStarter]: For program point L534(lines 534 572) no Hoare annotation was computed. [2018-12-09 19:02:49,435 INFO L448 ceAbstractionStarter]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,435 INFO L448 ceAbstractionStarter]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,435 INFO L448 ceAbstractionStarter]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,435 INFO L448 ceAbstractionStarter]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,435 INFO L448 ceAbstractionStarter]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,435 INFO L448 ceAbstractionStarter]: For program point L436(lines 436 572) no Hoare annotation was computed. [2018-12-09 19:02:49,435 INFO L448 ceAbstractionStarter]: For program point L403(lines 403 572) no Hoare annotation was computed. [2018-12-09 19:02:49,436 INFO L448 ceAbstractionStarter]: For program point L370(lines 370 572) no Hoare annotation was computed. [2018-12-09 19:02:49,436 INFO L448 ceAbstractionStarter]: For program point L271(lines 271 572) no Hoare annotation was computed. [2018-12-09 19:02:49,436 INFO L448 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-12-09 19:02:49,436 INFO L448 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-12-09 19:02:49,436 INFO L448 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-12-09 19:02:49,436 INFO L448 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-12-09 19:02:49,436 INFO L448 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-12-09 19:02:49,436 INFO L448 ceAbstractionStarter]: For program point L569(lines 569 572) no Hoare annotation was computed. [2018-12-09 19:02:49,436 INFO L448 ceAbstractionStarter]: For program point L239(lines 239 572) no Hoare annotation was computed. [2018-12-09 19:02:49,436 INFO L448 ceAbstractionStarter]: For program point L504(lines 504 572) no Hoare annotation was computed. [2018-12-09 19:02:49,436 INFO L448 ceAbstractionStarter]: For program point L471(lines 471 572) no Hoare annotation was computed. [2018-12-09 19:02:49,436 INFO L448 ceAbstractionStarter]: For program point L306(lines 306 572) no Hoare annotation was computed. [2018-12-09 19:02:49,436 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 184) no Hoare annotation was computed. [2018-12-09 19:02:49,436 INFO L448 ceAbstractionStarter]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,436 INFO L448 ceAbstractionStarter]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,436 INFO L448 ceAbstractionStarter]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,436 INFO L448 ceAbstractionStarter]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,436 INFO L448 ceAbstractionStarter]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,436 INFO L448 ceAbstractionStarter]: For program point L340(lines 340 572) no Hoare annotation was computed. [2018-12-09 19:02:49,436 INFO L448 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-12-09 19:02:49,436 INFO L448 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-12-09 19:02:49,437 INFO L448 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-12-09 19:02:49,437 INFO L448 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-12-09 19:02:49,437 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-12-09 19:02:49,437 INFO L448 ceAbstractionStarter]: For program point L540(lines 540 572) no Hoare annotation was computed. [2018-12-09 19:02:49,437 INFO L448 ceAbstractionStarter]: For program point L408(lines 408 572) no Hoare annotation was computed. [2018-12-09 19:02:49,437 INFO L448 ceAbstractionStarter]: For program point L375(lines 375 572) no Hoare annotation was computed. [2018-12-09 19:02:49,437 INFO L448 ceAbstractionStarter]: For program point L210(lines 210 572) no Hoare annotation was computed. [2018-12-09 19:02:49,437 INFO L448 ceAbstractionStarter]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,437 INFO L448 ceAbstractionStarter]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,437 INFO L448 ceAbstractionStarter]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,437 INFO L448 ceAbstractionStarter]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,437 INFO L448 ceAbstractionStarter]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,437 INFO L448 ceAbstractionStarter]: For program point L442(lines 442 572) no Hoare annotation was computed. [2018-12-09 19:02:49,437 INFO L448 ceAbstractionStarter]: For program point L277(lines 277 572) no Hoare annotation was computed. [2018-12-09 19:02:49,437 INFO L448 ceAbstractionStarter]: For program point L244(lines 244 572) no Hoare annotation was computed. [2018-12-09 19:02:49,437 INFO L448 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-12-09 19:02:49,437 INFO L448 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-12-09 19:02:49,437 INFO L448 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-12-09 19:02:49,437 INFO L448 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-12-09 19:02:49,437 INFO L448 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-12-09 19:02:49,437 INFO L448 ceAbstractionStarter]: For program point L509(lines 509 572) no Hoare annotation was computed. [2018-12-09 19:02:49,437 INFO L448 ceAbstractionStarter]: For program point L476(lines 476 572) no Hoare annotation was computed. [2018-12-09 19:02:49,438 INFO L448 ceAbstractionStarter]: For program point L378(lines 378 572) no Hoare annotation was computed. [2018-12-09 19:02:49,438 INFO L448 ceAbstractionStarter]: For program point L345(lines 345 572) no Hoare annotation was computed. [2018-12-09 19:02:49,438 INFO L448 ceAbstractionStarter]: For program point L312(lines 312 572) no Hoare annotation was computed. [2018-12-09 19:02:49,438 INFO L448 ceAbstractionStarter]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,438 INFO L448 ceAbstractionStarter]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,438 INFO L448 ceAbstractionStarter]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,438 INFO L448 ceAbstractionStarter]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,438 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,438 INFO L448 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-12-09 19:02:49,438 INFO L448 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-12-09 19:02:49,438 INFO L448 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-12-09 19:02:49,438 INFO L448 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-12-09 19:02:49,438 INFO L448 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-12-09 19:02:49,438 INFO L448 ceAbstractionStarter]: For program point L545(lines 545 572) no Hoare annotation was computed. [2018-12-09 19:02:49,438 INFO L448 ceAbstractionStarter]: For program point L215(lines 215 572) no Hoare annotation was computed. [2018-12-09 19:02:49,438 INFO L448 ceAbstractionStarter]: For program point L414(lines 414 572) no Hoare annotation was computed. [2018-12-09 19:02:49,438 INFO L448 ceAbstractionStarter]: For program point L249(lines 249 572) no Hoare annotation was computed. [2018-12-09 19:02:49,438 INFO L448 ceAbstractionStarter]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,438 INFO L448 ceAbstractionStarter]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,438 INFO L448 ceAbstractionStarter]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,438 INFO L448 ceAbstractionStarter]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,438 INFO L448 ceAbstractionStarter]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,438 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,438 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,439 INFO L448 ceAbstractionStarter]: For program point L514(lines 514 572) no Hoare annotation was computed. [2018-12-09 19:02:49,439 INFO L448 ceAbstractionStarter]: For program point L481(lines 481 572) no Hoare annotation was computed. [2018-12-09 19:02:49,439 INFO L448 ceAbstractionStarter]: For program point L448(lines 448 572) no Hoare annotation was computed. [2018-12-09 19:02:49,439 INFO L448 ceAbstractionStarter]: For program point L283(lines 283 572) no Hoare annotation was computed. [2018-12-09 19:02:49,439 INFO L448 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-12-09 19:02:49,439 INFO L448 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-12-09 19:02:49,439 INFO L448 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-12-09 19:02:49,439 INFO L448 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-12-09 19:02:49,439 INFO L448 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-12-09 19:02:49,439 INFO L448 ceAbstractionStarter]: For program point L548(lines 548 572) no Hoare annotation was computed. [2018-12-09 19:02:49,439 INFO L448 ceAbstractionStarter]: For program point L383(lines 383 572) no Hoare annotation was computed. [2018-12-09 19:02:49,439 INFO L448 ceAbstractionStarter]: For program point L317(lines 317 572) no Hoare annotation was computed. [2018-12-09 19:02:49,439 INFO L448 ceAbstractionStarter]: For program point L351(lines 351 572) no Hoare annotation was computed. [2018-12-09 19:02:49,439 INFO L448 ceAbstractionStarter]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,439 INFO L448 ceAbstractionStarter]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,439 INFO L448 ceAbstractionStarter]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,439 INFO L448 ceAbstractionStarter]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,439 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-12-09 19:02:49,439 INFO L448 ceAbstractionStarter]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,439 INFO L448 ceAbstractionStarter]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,439 INFO L448 ceAbstractionStarter]: For program point L517(lines 517 572) no Hoare annotation was computed. [2018-12-09 19:02:49,439 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 572) no Hoare annotation was computed. [2018-12-09 19:02:49,439 INFO L448 ceAbstractionStarter]: For program point L220(lines 220 572) no Hoare annotation was computed. [2018-12-09 19:02:49,439 INFO L448 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-12-09 19:02:49,439 INFO L448 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-12-09 19:02:49,440 INFO L448 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-12-09 19:02:49,440 INFO L448 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-12-09 19:02:49,440 INFO L448 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-12-09 19:02:49,440 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-12-09 19:02:49,440 INFO L448 ceAbstractionStarter]: For program point L419(lines 419 572) no Hoare annotation was computed. [2018-12-09 19:02:49,440 INFO L448 ceAbstractionStarter]: For program point L320(lines 320 572) no Hoare annotation was computed. [2018-12-09 19:02:49,440 INFO L448 ceAbstractionStarter]: For program point L254(lines 254 572) no Hoare annotation was computed. [2018-12-09 19:02:49,440 INFO L448 ceAbstractionStarter]: For program point L354(lines 354 572) no Hoare annotation was computed. [2018-12-09 19:02:49,440 INFO L448 ceAbstractionStarter]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,440 INFO L448 ceAbstractionStarter]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,440 INFO L448 ceAbstractionStarter]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,440 INFO L448 ceAbstractionStarter]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,440 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,440 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,440 INFO L448 ceAbstractionStarter]: For program point L487(lines 487 572) no Hoare annotation was computed. [2018-12-09 19:02:49,440 INFO L448 ceAbstractionStarter]: For program point L454(lines 454 572) no Hoare annotation was computed. [2018-12-09 19:02:49,440 INFO L448 ceAbstractionStarter]: For program point L388(lines 388 572) no Hoare annotation was computed. [2018-12-09 19:02:49,440 INFO L448 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-12-09 19:02:49,440 INFO L448 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-12-09 19:02:49,440 INFO L448 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-12-09 19:02:49,440 INFO L448 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-12-09 19:02:49,440 INFO L448 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-12-09 19:02:49,440 INFO L448 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-12-09 19:02:49,440 INFO L448 ceAbstractionStarter]: For program point L554(lines 554 572) no Hoare annotation was computed. [2018-12-09 19:02:49,440 INFO L448 ceAbstractionStarter]: For program point L323(lines 323 572) no Hoare annotation was computed. [2018-12-09 19:02:49,441 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse6 (= 9 |old(~a19~0)|))) (let ((.cse7 (< 0 |old(~a10~0)|)) (.cse0 (<= (+ |old(~a1~0)| 13) 0)) (.cse1 (< 0 (+ ~a1~0 13))) (.cse11 (< 1 |old(~a10~0)|)) (.cse8 (< 8 |old(~a19~0)|)) (.cse10 (= 7 |old(~a19~0)|)) (.cse9 (= |old(~a19~0)| ~a19~0)) (.cse3 (not (= 14 ~a4~0))) (.cse4 (not (= 0 ~a12~0))) (.cse2 (not .cse6)) (.cse5 (= |calculate_output_#in~input| 0))) (and (or .cse0 .cse1 .cse2) (or (= (mod ~a10~0 2) 0) .cse3 .cse4 (not (= 0 (mod |old(~a10~0)| 2))) .cse2 .cse5) (or (<= ~a10~0 0) (or .cse6 .cse7)) (or .cse0 .cse8 (and .cse9 .cse1)) (or .cse10 (and .cse9 (<= ~a10~0 1)) (or (= 8 |old(~a19~0)|) .cse11)) (or .cse9 .cse7) (or .cse0 .cse1 .cse11) (or .cse9 .cse2) (or .cse8 .cse10 .cse9) (or (or (= ~a10~0 2) (and (= ~a10~0 0) (= ~a1~0 23))) (and (or .cse3 .cse4 (not (= 23 |old(~a1~0)|)) (not (= 0 |old(~a10~0)|))) (or .cse3 .cse4 (not (= 2 |old(~a10~0)|)))) .cse2 .cse5)))) [2018-12-09 19:02:49,441 INFO L448 ceAbstractionStarter]: For program point L357(lines 357 572) no Hoare annotation was computed. [2018-12-09 19:02:49,441 INFO L448 ceAbstractionStarter]: For program point L291(lines 291 572) no Hoare annotation was computed. [2018-12-09 19:02:49,441 INFO L448 ceAbstractionStarter]: For program point L225(lines 225 572) no Hoare annotation was computed. [2018-12-09 19:02:49,441 INFO L448 ceAbstractionStarter]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,441 INFO L448 ceAbstractionStarter]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,441 INFO L448 ceAbstractionStarter]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,441 INFO L448 ceAbstractionStarter]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,441 INFO L448 ceAbstractionStarter]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,441 INFO L448 ceAbstractionStarter]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,441 INFO L448 ceAbstractionStarter]: For program point L523(lines 523 572) no Hoare annotation was computed. [2018-12-09 19:02:49,441 INFO L448 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-12-09 19:02:49,441 INFO L448 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-12-09 19:02:49,441 INFO L448 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-12-09 19:02:49,441 INFO L448 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-12-09 19:02:49,441 INFO L448 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-12-09 19:02:49,441 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-12-09 19:02:49,441 INFO L448 ceAbstractionStarter]: For program point L557(lines 557 572) no Hoare annotation was computed. [2018-12-09 19:02:49,441 INFO L448 ceAbstractionStarter]: For program point L425(lines 425 572) no Hoare annotation was computed. [2018-12-09 19:02:49,441 INFO L448 ceAbstractionStarter]: For program point L326(lines 326 572) no Hoare annotation was computed. [2018-12-09 19:02:49,442 INFO L448 ceAbstractionStarter]: For program point L260(lines 260 572) no Hoare annotation was computed. [2018-12-09 19:02:49,442 INFO L448 ceAbstractionStarter]: For program point L393(lines 393 572) no Hoare annotation was computed. [2018-12-09 19:02:49,442 INFO L448 ceAbstractionStarter]: For program point L360(lines 360 572) no Hoare annotation was computed. [2018-12-09 19:02:49,442 INFO L448 ceAbstractionStarter]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,442 INFO L448 ceAbstractionStarter]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,442 INFO L448 ceAbstractionStarter]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,442 INFO L448 ceAbstractionStarter]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,442 INFO L448 ceAbstractionStarter]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,442 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,442 INFO L448 ceAbstractionStarter]: For program point L526(lines 526 572) no Hoare annotation was computed. [2018-12-09 19:02:49,442 INFO L448 ceAbstractionStarter]: For program point L493(lines 493 572) no Hoare annotation was computed. [2018-12-09 19:02:49,442 INFO L448 ceAbstractionStarter]: For program point L460(lines 460 572) no Hoare annotation was computed. [2018-12-09 19:02:49,442 INFO L448 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-12-09 19:02:49,442 INFO L448 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-12-09 19:02:49,442 INFO L448 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-12-09 19:02:49,442 INFO L448 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-12-09 19:02:49,442 INFO L448 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-12-09 19:02:49,442 INFO L448 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-12-09 19:02:49,442 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 572) no Hoare annotation was computed. [2018-12-09 19:02:49,442 INFO L448 ceAbstractionStarter]: For program point L296(lines 296 572) no Hoare annotation was computed. [2018-12-09 19:02:49,442 INFO L448 ceAbstractionStarter]: For program point L231(lines 231 572) no Hoare annotation was computed. [2018-12-09 19:02:49,442 INFO L448 ceAbstractionStarter]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,442 INFO L448 ceAbstractionStarter]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,442 INFO L448 ceAbstractionStarter]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,442 INFO L448 ceAbstractionStarter]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,443 INFO L448 ceAbstractionStarter]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,443 INFO L448 ceAbstractionStarter]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 19:02:49,443 INFO L448 ceAbstractionStarter]: For program point L529(lines 529 572) no Hoare annotation was computed. [2018-12-09 19:02:49,443 INFO L448 ceAbstractionStarter]: For program point L430(lines 430 572) no Hoare annotation was computed. [2018-12-09 19:02:49,443 INFO L448 ceAbstractionStarter]: For program point L265(lines 265 572) no Hoare annotation was computed. [2018-12-09 19:02:49,443 INFO L448 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-12-09 19:02:49,443 INFO L448 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-12-09 19:02:49,443 INFO L448 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-12-09 19:02:49,443 INFO L448 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-12-09 19:02:49,443 INFO L448 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-12-09 19:02:49,443 INFO L448 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-12-09 19:02:49,443 INFO L448 ceAbstractionStarter]: For program point L563(lines 563 572) no Hoare annotation was computed. [2018-12-09 19:02:49,443 INFO L448 ceAbstractionStarter]: For program point L398(lines 398 572) no Hoare annotation was computed. [2018-12-09 19:02:49,443 INFO L448 ceAbstractionStarter]: For program point L365(lines 365 572) no Hoare annotation was computed. [2018-12-09 19:02:49,443 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 19:02:49,443 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a19~0 9) (= ~a10~0 0) (= ~a12~0 0) (= ~a1~0 23) (= ~a4~0 14)) [2018-12-09 19:02:49,443 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 19:02:49,443 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 19:02:49,443 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (= 14 ~a4~0)) (not (= 0 ~a12~0)) (not (= 9 |old(~a19~0)|)) (not (= 23 |old(~a1~0)|)) (not (= 0 |old(~a10~0)|)) (and (= ~a19~0 9) (= ~a10~0 0) (= ~a1~0 23))) [2018-12-09 19:02:49,443 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2018-12-09 19:02:49,444 INFO L444 ceAbstractionStarter]: At program point L590(line 590) the Hoare annotation is: (let ((.cse1 (not (= 7 ~a19~0))) (.cse0 (<= ~a19~0 8))) (or (not (= 14 ~a4~0)) (not (= 23 |old(~a1~0)|)) (and (< 0 (+ ~a1~0 13)) .cse0) (= |old(~a19~0)| ~a19~0) (and .cse1 (<= ~a10~0 1)) (not (= 0 ~a12~0)) (not (= 9 |old(~a19~0)|)) (and .cse1 .cse0) (not (= 0 |old(~a10~0)|)) (<= ~a10~0 0))) [2018-12-09 19:02:49,444 INFO L448 ceAbstractionStarter]: For program point L590-1(line 590) no Hoare annotation was computed. [2018-12-09 19:02:49,444 INFO L448 ceAbstractionStarter]: For program point L587(line 587) no Hoare annotation was computed. [2018-12-09 19:02:49,444 INFO L444 ceAbstractionStarter]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse1 (not (= 7 ~a19~0))) (.cse0 (<= ~a19~0 8))) (or (not (= 14 ~a4~0)) (not (= 23 |old(~a1~0)|)) (= |old(~a19~0)| ~a19~0) (and (< 0 (+ ~a1~0 13)) .cse0) (and .cse1 (<= ~a10~0 1)) (not (= 0 ~a12~0)) (not (= 9 |old(~a19~0)|)) (and .cse1 .cse0) (not (= 0 |old(~a10~0)|)) (<= ~a10~0 0))) [2018-12-09 19:02:49,444 INFO L448 ceAbstractionStarter]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2018-12-09 19:02:49,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:02:49 BoogieIcfgContainer [2018-12-09 19:02:49,450 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:02:49,450 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:02:49,450 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:02:49,450 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:02:49,450 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:02:27" (3/4) ... [2018-12-09 19:02:49,452 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 19:02:49,456 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 19:02:49,456 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-12-09 19:02:49,456 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 19:02:49,462 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-09 19:02:49,462 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 19:02:49,479 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(14 == a4) || !(23 == \old(a1))) || \old(a19) == a19) || (0 < a1 + 13 && a19 <= 8)) || (!(7 == a19) && a10 <= 1)) || !(0 == a12)) || !(9 == \old(a19))) || (!(7 == a19) && a19 <= 8)) || !(0 == \old(a10))) || a10 <= 0 [2018-12-09 19:02:49,532 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_680ab542-c67a-4ffa-9ee7-f02208c44acc/bin-2019/utaipan/witness.graphml [2018-12-09 19:02:49,532 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:02:49,532 INFO L168 Benchmark]: Toolchain (without parser) took 22663.86 ms. Allocated memory was 1.0 GB in the beginning and 3.9 GB in the end (delta: 2.9 GB). Free memory was 951.7 MB in the beginning and 970.7 MB in the end (delta: -19.0 MB). Peak memory consumption was 2.9 GB. Max. memory is 11.5 GB. [2018-12-09 19:02:49,533 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:02:49,533 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -179.8 MB). Peak memory consumption was 52.4 MB. Max. memory is 11.5 GB. [2018-12-09 19:02:49,533 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:02:49,533 INFO L168 Benchmark]: Boogie Preprocessor took 50.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:02:49,533 INFO L168 Benchmark]: RCFGBuilder took 583.00 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: 115.2 MB). Peak memory consumption was 115.2 MB. Max. memory is 11.5 GB. [2018-12-09 19:02:49,533 INFO L168 Benchmark]: TraceAbstraction took 21594.63 ms. Allocated memory was 1.2 GB in the beginning and 3.9 GB in the end (delta: 2.7 GB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -14.8 MB). Peak memory consumption was 2.7 GB. Max. memory is 11.5 GB. [2018-12-09 19:02:49,534 INFO L168 Benchmark]: Witness Printer took 82.09 ms. Allocated memory is still 3.9 GB. Free memory was 1.0 GB in the beginning and 970.7 MB in the end (delta: 60.3 MB). Peak memory consumption was 60.3 MB. Max. memory is 11.5 GB. [2018-12-09 19:02:49,535 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 327.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -179.8 MB). Peak memory consumption was 52.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 583.00 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: 115.2 MB). Peak memory consumption was 115.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 21594.63 ms. Allocated memory was 1.2 GB in the beginning and 3.9 GB in the end (delta: 2.7 GB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -14.8 MB). Peak memory consumption was 2.7 GB. Max. memory is 11.5 GB. * Witness Printer took 82.09 ms. Allocated memory is still 3.9 GB. Free memory was 1.0 GB in the beginning and 970.7 MB in the end (delta: 60.3 MB). Peak memory consumption was 60.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 184]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: ((((((((!(14 == a4) || !(23 == \old(a1))) || \old(a19) == a19) || (0 < a1 + 13 && a19 <= 8)) || (!(7 == a19) && a10 <= 1)) || !(0 == a12)) || !(9 == \old(a19))) || (!(7 == a19) && a19 <= 8)) || !(0 == \old(a10))) || a10 <= 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. SAFE Result, 21.5s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 18.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.6s HoareAnnotationTime, HoareTripleCheckerStatistics: 293 SDtfs, 3354 SDslu, 198 SDs, 0 SdLazy, 5098 SolverSat, 1199 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.5s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 1747 GetRequests, 1680 SyntacticMatches, 10 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2616occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.7s AbstIntTime, 4 AbstIntIterations, 1 AbstIntStrong, 0.9964112300954405 AbsIntWeakeningRatio, 0.14814814814814814 AbsIntAvgWeakeningVarsNumRemoved, 14.548148148148147 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 594 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 67 PreInvPairs, 113 NumberOfFragments, 343 HoareAnnotationTreeSize, 67 FomulaSimplifications, 1374 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1899 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 2061 NumberOfCodeBlocks, 2061 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2820 ConstructedInterpolants, 0 QuantifiedInterpolants, 1571472 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1296 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 1881/2140 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...