./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem01_label22.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem01_label22.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d643ba28d95f16d18742963f1ebc32166d4daeb8 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-27 22:38:48,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 22:38:48,397 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 22:38:48,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 22:38:48,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 22:38:48,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 22:38:48,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 22:38:48,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 22:38:48,414 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 22:38:48,415 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 22:38:48,416 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 22:38:48,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 22:38:48,418 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 22:38:48,419 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 22:38:48,420 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 22:38:48,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 22:38:48,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 22:38:48,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 22:38:48,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 22:38:48,427 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 22:38:48,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 22:38:48,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 22:38:48,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 22:38:48,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 22:38:48,436 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 22:38:48,436 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 22:38:48,436 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 22:38:48,437 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 22:38:48,438 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 22:38:48,439 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 22:38:48,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 22:38:48,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 22:38:48,441 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 22:38:48,442 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 22:38:48,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 22:38:48,446 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 22:38:48,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 22:38:48,448 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 22:38:48,448 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 22:38:48,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 22:38:48,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 22:38:48,453 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 22:38:48,482 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 22:38:48,483 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 22:38:48,484 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 22:38:48,485 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 22:38:48,485 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 22:38:48,485 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 22:38:48,486 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 22:38:48,486 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 22:38:48,486 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 22:38:48,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 22:38:48,488 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 22:38:48,488 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 22:38:48,488 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 22:38:48,489 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 22:38:48,489 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 22:38:48,490 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 22:38:48,490 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 22:38:48,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 22:38:48,490 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 22:38:48,491 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 22:38:48,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 22:38:48,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 22:38:48,492 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 22:38:48,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 22:38:48,492 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 22:38:48,493 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 22:38:48,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 22:38:48,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 22:38:48,494 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> Automizer 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 -> d643ba28d95f16d18742963f1ebc32166d4daeb8 [2019-11-27 22:38:48,772 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 22:38:48,791 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 22:38:48,795 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 22:38:48,796 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 22:38:48,797 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 22:38:48,797 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem01_label22.c [2019-11-27 22:38:48,866 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48ce0fa23/af273e34b96e44f98dcd7b8f86bf791a/FLAGe0547ceae [2019-11-27 22:38:49,454 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 22:38:49,455 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label22.c [2019-11-27 22:38:49,465 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48ce0fa23/af273e34b96e44f98dcd7b8f86bf791a/FLAGe0547ceae [2019-11-27 22:38:49,695 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48ce0fa23/af273e34b96e44f98dcd7b8f86bf791a [2019-11-27 22:38:49,698 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 22:38:49,699 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 22:38:49,700 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 22:38:49,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 22:38:49,704 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 22:38:49,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 10:38:49" (1/1) ... [2019-11-27 22:38:49,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19255d34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:38:49, skipping insertion in model container [2019-11-27 22:38:49,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 10:38:49" (1/1) ... [2019-11-27 22:38:49,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 22:38:49,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 22:38:50,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 22:38:50,282 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 22:38:50,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 22:38:50,445 INFO L208 MainTranslator]: Completed translation [2019-11-27 22:38:50,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:38:50 WrapperNode [2019-11-27 22:38:50,447 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 22:38:50,448 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 22:38:50,449 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 22:38:50,449 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 22:38:50,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:38:50" (1/1) ... [2019-11-27 22:38:50,501 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:38:50" (1/1) ... [2019-11-27 22:38:50,580 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 22:38:50,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 22:38:50,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 22:38:50,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 22:38:50,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:38:50" (1/1) ... [2019-11-27 22:38:50,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:38:50" (1/1) ... [2019-11-27 22:38:50,598 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:38:50" (1/1) ... [2019-11-27 22:38:50,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:38:50" (1/1) ... [2019-11-27 22:38:50,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:38:50" (1/1) ... [2019-11-27 22:38:50,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:38:50" (1/1) ... [2019-11-27 22:38:50,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:38:50" (1/1) ... [2019-11-27 22:38:50,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 22:38:50,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 22:38:50,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 22:38:50,665 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 22:38:50,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:38:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-27 22:38:50,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 22:38:50,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 22:38:51,918 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 22:38:51,919 INFO L297 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-27 22:38:51,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 10:38:51 BoogieIcfgContainer [2019-11-27 22:38:51,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 22:38:51,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 22:38:51,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 22:38:51,929 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 22:38:51,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 10:38:49" (1/3) ... [2019-11-27 22:38:51,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11bdb30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 10:38:51, skipping insertion in model container [2019-11-27 22:38:51,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:38:50" (2/3) ... [2019-11-27 22:38:51,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11bdb30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 10:38:51, skipping insertion in model container [2019-11-27 22:38:51,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 10:38:51" (3/3) ... [2019-11-27 22:38:51,935 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label22.c [2019-11-27 22:38:51,946 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 22:38:51,956 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 22:38:51,972 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 22:38:52,021 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 22:38:52,021 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 22:38:52,022 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 22:38:52,022 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 22:38:52,023 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 22:38:52,023 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 22:38:52,023 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 22:38:52,024 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 22:38:52,050 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2019-11-27 22:38:52,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-11-27 22:38:52,070 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:38:52,072 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:38:52,072 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:38:52,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:38:52,079 INFO L82 PathProgramCache]: Analyzing trace with hash -278590162, now seen corresponding path program 1 times [2019-11-27 22:38:52,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:38:52,089 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252990350] [2019-11-27 22:38:52,090 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:38:52,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:38:52,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 22:38:52,683 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252990350] [2019-11-27 22:38:52,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:38:52,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-27 22:38:52,687 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055913802] [2019-11-27 22:38:52,694 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-27 22:38:52,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:38:52,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-27 22:38:52,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 22:38:52,712 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 4 states. [2019-11-27 22:38:53,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:38:53,969 INFO L93 Difference]: Finished difference Result 662 states and 1178 transitions. [2019-11-27 22:38:53,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-27 22:38:53,971 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 127 [2019-11-27 22:38:53,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:38:53,988 INFO L225 Difference]: With dead ends: 662 [2019-11-27 22:38:53,989 INFO L226 Difference]: Without dead ends: 397 [2019-11-27 22:38:53,993 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 22:38:54,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2019-11-27 22:38:54,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2019-11-27 22:38:54,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2019-11-27 22:38:54,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 559 transitions. [2019-11-27 22:38:54,094 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 559 transitions. Word has length 127 [2019-11-27 22:38:54,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:38:54,096 INFO L462 AbstractCegarLoop]: Abstraction has 397 states and 559 transitions. [2019-11-27 22:38:54,096 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-27 22:38:54,096 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 559 transitions. [2019-11-27 22:38:54,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-11-27 22:38:54,106 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:38:54,107 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:38:54,108 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:38:54,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:38:54,109 INFO L82 PathProgramCache]: Analyzing trace with hash 249291862, now seen corresponding path program 1 times [2019-11-27 22:38:54,109 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:38:54,109 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95974363] [2019-11-27 22:38:54,110 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:38:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:38:54,180 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 22:38:54,181 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95974363] [2019-11-27 22:38:54,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:38:54,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-27 22:38:54,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667706173] [2019-11-27 22:38:54,183 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-27 22:38:54,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:38:54,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-27 22:38:54,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 22:38:54,185 INFO L87 Difference]: Start difference. First operand 397 states and 559 transitions. Second operand 4 states. [2019-11-27 22:38:54,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:38:54,819 INFO L93 Difference]: Finished difference Result 1185 states and 1672 transitions. [2019-11-27 22:38:54,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 22:38:54,820 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 132 [2019-11-27 22:38:54,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:38:54,825 INFO L225 Difference]: With dead ends: 1185 [2019-11-27 22:38:54,825 INFO L226 Difference]: Without dead ends: 790 [2019-11-27 22:38:54,827 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 22:38:54,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2019-11-27 22:38:54,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2019-11-27 22:38:54,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2019-11-27 22:38:54,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1066 transitions. [2019-11-27 22:38:54,859 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1066 transitions. Word has length 132 [2019-11-27 22:38:54,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:38:54,860 INFO L462 AbstractCegarLoop]: Abstraction has 790 states and 1066 transitions. [2019-11-27 22:38:54,860 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-27 22:38:54,860 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1066 transitions. [2019-11-27 22:38:54,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-11-27 22:38:54,864 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:38:54,864 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:38:54,864 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:38:54,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:38:54,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1600100500, now seen corresponding path program 1 times [2019-11-27 22:38:54,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:38:54,865 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853865686] [2019-11-27 22:38:54,866 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:38:54,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:38:54,994 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-27 22:38:54,995 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853865686] [2019-11-27 22:38:54,995 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:38:54,995 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-27 22:38:54,996 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976517652] [2019-11-27 22:38:54,996 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-27 22:38:54,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:38:54,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-27 22:38:54,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 22:38:54,997 INFO L87 Difference]: Start difference. First operand 790 states and 1066 transitions. Second operand 3 states. [2019-11-27 22:38:55,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:38:55,456 INFO L93 Difference]: Finished difference Result 1971 states and 2686 transitions. [2019-11-27 22:38:55,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 22:38:55,457 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2019-11-27 22:38:55,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:38:55,463 INFO L225 Difference]: With dead ends: 1971 [2019-11-27 22:38:55,464 INFO L226 Difference]: Without dead ends: 1183 [2019-11-27 22:38:55,466 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 22:38:55,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2019-11-27 22:38:55,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 921. [2019-11-27 22:38:55,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2019-11-27 22:38:55,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1246 transitions. [2019-11-27 22:38:55,494 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1246 transitions. Word has length 153 [2019-11-27 22:38:55,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:38:55,495 INFO L462 AbstractCegarLoop]: Abstraction has 921 states and 1246 transitions. [2019-11-27 22:38:55,495 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-27 22:38:55,495 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1246 transitions. [2019-11-27 22:38:55,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-11-27 22:38:55,498 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:38:55,499 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:38:55,499 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:38:55,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:38:55,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1232280553, now seen corresponding path program 1 times [2019-11-27 22:38:55,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:38:55,500 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140187474] [2019-11-27 22:38:55,501 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:38:55,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:38:55,612 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-11-27 22:38:55,612 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140187474] [2019-11-27 22:38:55,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:38:55,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-27 22:38:55,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156250552] [2019-11-27 22:38:55,614 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-27 22:38:55,614 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:38:55,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-27 22:38:55,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 22:38:55,615 INFO L87 Difference]: Start difference. First operand 921 states and 1246 transitions. Second operand 3 states. [2019-11-27 22:38:56,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:38:56,264 INFO L93 Difference]: Finished difference Result 2233 states and 2997 transitions. [2019-11-27 22:38:56,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 22:38:56,264 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2019-11-27 22:38:56,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:38:56,270 INFO L225 Difference]: With dead ends: 2233 [2019-11-27 22:38:56,271 INFO L226 Difference]: Without dead ends: 1314 [2019-11-27 22:38:56,272 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 22:38:56,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2019-11-27 22:38:56,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1052. [2019-11-27 22:38:56,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2019-11-27 22:38:56,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1370 transitions. [2019-11-27 22:38:56,296 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1370 transitions. Word has length 189 [2019-11-27 22:38:56,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:38:56,297 INFO L462 AbstractCegarLoop]: Abstraction has 1052 states and 1370 transitions. [2019-11-27 22:38:56,297 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-27 22:38:56,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1370 transitions. [2019-11-27 22:38:56,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-11-27 22:38:56,301 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:38:56,301 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:38:56,302 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:38:56,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:38:56,302 INFO L82 PathProgramCache]: Analyzing trace with hash -1116748331, now seen corresponding path program 1 times [2019-11-27 22:38:56,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:38:56,303 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620617631] [2019-11-27 22:38:56,303 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:38:56,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:38:56,415 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2019-11-27 22:38:56,415 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620617631] [2019-11-27 22:38:56,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:38:56,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-27 22:38:56,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063967721] [2019-11-27 22:38:56,417 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-27 22:38:56,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:38:56,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-27 22:38:56,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-27 22:38:56,418 INFO L87 Difference]: Start difference. First operand 1052 states and 1370 transitions. Second operand 4 states. [2019-11-27 22:38:56,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:38:56,985 INFO L93 Difference]: Finished difference Result 2238 states and 2892 transitions. [2019-11-27 22:38:56,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-27 22:38:56,986 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 197 [2019-11-27 22:38:56,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:38:56,991 INFO L225 Difference]: With dead ends: 2238 [2019-11-27 22:38:56,991 INFO L226 Difference]: Without dead ends: 1188 [2019-11-27 22:38:56,993 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-27 22:38:56,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1188 states. [2019-11-27 22:38:57,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1188 to 1183. [2019-11-27 22:38:57,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1183 states. [2019-11-27 22:38:57,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1507 transitions. [2019-11-27 22:38:57,020 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1507 transitions. Word has length 197 [2019-11-27 22:38:57,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:38:57,020 INFO L462 AbstractCegarLoop]: Abstraction has 1183 states and 1507 transitions. [2019-11-27 22:38:57,021 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-27 22:38:57,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1507 transitions. [2019-11-27 22:38:57,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-11-27 22:38:57,024 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:38:57,025 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:38:57,025 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:38:57,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:38:57,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1390292323, now seen corresponding path program 1 times [2019-11-27 22:38:57,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:38:57,026 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537106686] [2019-11-27 22:38:57,026 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:38:57,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:38:57,138 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2019-11-27 22:38:57,139 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537106686] [2019-11-27 22:38:57,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:38:57,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-27 22:38:57,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970677306] [2019-11-27 22:38:57,141 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-27 22:38:57,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:38:57,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-27 22:38:57,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-27 22:38:57,142 INFO L87 Difference]: Start difference. First operand 1183 states and 1507 transitions. Second operand 5 states. [2019-11-27 22:38:58,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:38:58,278 INFO L93 Difference]: Finished difference Result 2495 states and 3215 transitions. [2019-11-27 22:38:58,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-27 22:38:58,279 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 201 [2019-11-27 22:38:58,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:38:58,285 INFO L225 Difference]: With dead ends: 2495 [2019-11-27 22:38:58,285 INFO L226 Difference]: Without dead ends: 1445 [2019-11-27 22:38:58,287 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-27 22:38:58,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2019-11-27 22:38:58,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1445. [2019-11-27 22:38:58,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1445 states. [2019-11-27 22:38:58,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1799 transitions. [2019-11-27 22:38:58,321 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1799 transitions. Word has length 201 [2019-11-27 22:38:58,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:38:58,322 INFO L462 AbstractCegarLoop]: Abstraction has 1445 states and 1799 transitions. [2019-11-27 22:38:58,322 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-27 22:38:58,322 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1799 transitions. [2019-11-27 22:38:58,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-11-27 22:38:58,328 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:38:58,328 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:38:58,329 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:38:58,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:38:58,329 INFO L82 PathProgramCache]: Analyzing trace with hash 651133218, now seen corresponding path program 1 times [2019-11-27 22:38:58,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:38:58,330 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390027324] [2019-11-27 22:38:58,330 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:38:58,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:38:58,425 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2019-11-27 22:38:58,426 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390027324] [2019-11-27 22:38:58,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:38:58,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-27 22:38:58,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101271811] [2019-11-27 22:38:58,427 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-27 22:38:58,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:38:58,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-27 22:38:58,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 22:38:58,428 INFO L87 Difference]: Start difference. First operand 1445 states and 1799 transitions. Second operand 3 states. [2019-11-27 22:38:58,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:38:58,899 INFO L93 Difference]: Finished difference Result 3150 states and 3936 transitions. [2019-11-27 22:38:58,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 22:38:58,902 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2019-11-27 22:38:58,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:38:58,908 INFO L225 Difference]: With dead ends: 3150 [2019-11-27 22:38:58,909 INFO L226 Difference]: Without dead ends: 1576 [2019-11-27 22:38:58,911 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 22:38:58,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2019-11-27 22:38:58,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1445. [2019-11-27 22:38:58,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1445 states. [2019-11-27 22:38:58,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1592 transitions. [2019-11-27 22:38:58,935 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1592 transitions. Word has length 204 [2019-11-27 22:38:58,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:38:58,935 INFO L462 AbstractCegarLoop]: Abstraction has 1445 states and 1592 transitions. [2019-11-27 22:38:58,935 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-27 22:38:58,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1592 transitions. [2019-11-27 22:38:58,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2019-11-27 22:38:58,940 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:38:58,941 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:38:58,941 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:38:58,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:38:58,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1390965986, now seen corresponding path program 1 times [2019-11-27 22:38:58,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:38:58,942 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683900512] [2019-11-27 22:38:58,942 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:38:58,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:38:59,027 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2019-11-27 22:38:59,028 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683900512] [2019-11-27 22:38:59,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:38:59,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-27 22:38:59,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372659080] [2019-11-27 22:38:59,029 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-27 22:38:59,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:38:59,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-27 22:38:59,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 22:38:59,029 INFO L87 Difference]: Start difference. First operand 1445 states and 1592 transitions. Second operand 3 states. [2019-11-27 22:38:59,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:38:59,410 INFO L93 Difference]: Finished difference Result 3412 states and 3789 transitions. [2019-11-27 22:38:59,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 22:38:59,411 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 219 [2019-11-27 22:38:59,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:38:59,419 INFO L225 Difference]: With dead ends: 3412 [2019-11-27 22:38:59,419 INFO L226 Difference]: Without dead ends: 2100 [2019-11-27 22:38:59,422 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 22:38:59,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2019-11-27 22:38:59,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1707. [2019-11-27 22:38:59,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1707 states. [2019-11-27 22:38:59,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 1869 transitions. [2019-11-27 22:38:59,450 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 1869 transitions. Word has length 219 [2019-11-27 22:38:59,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:38:59,451 INFO L462 AbstractCegarLoop]: Abstraction has 1707 states and 1869 transitions. [2019-11-27 22:38:59,451 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-27 22:38:59,451 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 1869 transitions. [2019-11-27 22:38:59,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2019-11-27 22:38:59,456 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:38:59,457 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:38:59,457 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:38:59,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:38:59,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1021467306, now seen corresponding path program 1 times [2019-11-27 22:38:59,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:38:59,458 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822210155] [2019-11-27 22:38:59,459 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:38:59,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:38:59,679 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 205 proven. 27 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-11-27 22:38:59,680 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822210155] [2019-11-27 22:38:59,680 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998389561] [2019-11-27 22:38:59,681 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-27 22:38:59,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:38:59,854 INFO L255 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-27 22:38:59,884 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 22:39:00,037 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-11-27 22:39:00,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-27 22:39:00,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2019-11-27 22:39:00,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256004615] [2019-11-27 22:39:00,039 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-27 22:39:00,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:39:00,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-27 22:39:00,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-11-27 22:39:00,040 INFO L87 Difference]: Start difference. First operand 1707 states and 1869 transitions. Second operand 3 states. [2019-11-27 22:39:00,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:39:00,411 INFO L93 Difference]: Finished difference Result 1707 states and 1869 transitions. [2019-11-27 22:39:00,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 22:39:00,412 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 248 [2019-11-27 22:39:00,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:39:00,413 INFO L225 Difference]: With dead ends: 1707 [2019-11-27 22:39:00,413 INFO L226 Difference]: Without dead ends: 0 [2019-11-27 22:39:00,416 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 248 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-11-27 22:39:00,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-27 22:39:00,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-27 22:39:00,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-27 22:39:00,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-27 22:39:00,418 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 248 [2019-11-27 22:39:00,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:39:00,418 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-27 22:39:00,418 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-27 22:39:00,418 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-27 22:39:00,419 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-27 22:39:00,625 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-27 22:39:00,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-27 22:39:00,860 INFO L246 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2019-11-27 22:39:00,860 INFO L246 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2019-11-27 22:39:00,860 INFO L246 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,860 INFO L246 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,860 INFO L246 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,860 INFO L246 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,860 INFO L246 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,861 INFO L246 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,861 INFO L246 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2019-11-27 22:39:00,861 INFO L246 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2019-11-27 22:39:00,861 INFO L246 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2019-11-27 22:39:00,861 INFO L246 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2019-11-27 22:39:00,861 INFO L246 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2019-11-27 22:39:00,862 INFO L246 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2019-11-27 22:39:00,862 INFO L246 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2019-11-27 22:39:00,862 INFO L246 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2019-11-27 22:39:00,862 INFO L246 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2019-11-27 22:39:00,862 INFO L246 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2019-11-27 22:39:00,862 INFO L246 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,862 INFO L246 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,862 INFO L246 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,862 INFO L246 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,862 INFO L246 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,863 INFO L246 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,863 INFO L246 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2019-11-27 22:39:00,863 INFO L246 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2019-11-27 22:39:00,863 INFO L246 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2019-11-27 22:39:00,863 INFO L246 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2019-11-27 22:39:00,863 INFO L246 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2019-11-27 22:39:00,863 INFO L246 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2019-11-27 22:39:00,863 INFO L246 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2019-11-27 22:39:00,863 INFO L246 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2019-11-27 22:39:00,863 INFO L246 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2019-11-27 22:39:00,863 INFO L246 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2019-11-27 22:39:00,864 INFO L246 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2019-11-27 22:39:00,866 INFO L246 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2019-11-27 22:39:00,867 INFO L246 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2019-11-27 22:39:00,867 INFO L246 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2019-11-27 22:39:00,867 INFO L246 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2019-11-27 22:39:00,867 INFO L246 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,867 INFO L246 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,867 INFO L246 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,868 INFO L246 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,868 INFO L246 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,868 INFO L246 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2019-11-27 22:39:00,868 INFO L246 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2019-11-27 22:39:00,869 INFO L246 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2019-11-27 22:39:00,869 INFO L246 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2019-11-27 22:39:00,869 INFO L246 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2019-11-27 22:39:00,869 INFO L246 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2019-11-27 22:39:00,869 INFO L246 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2019-11-27 22:39:00,869 INFO L246 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2019-11-27 22:39:00,870 INFO L246 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2019-11-27 22:39:00,870 INFO L242 CegarLoopResult]: At program point L574(lines 30 575) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1))) (or (and (not (= ~a16~0 6)) .cse0) (and .cse0 (= 15 ~a8~0)) (and (= ~a17~0 1) .cse0) (and (= 1 ~a7~0) (<= ~a21~0 0)))) [2019-11-27 22:39:00,870 INFO L246 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,871 INFO L246 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,871 INFO L246 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,871 INFO L246 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,871 INFO L246 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,871 INFO L246 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2019-11-27 22:39:00,872 INFO L246 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2019-11-27 22:39:00,872 INFO L246 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2019-11-27 22:39:00,872 INFO L246 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2019-11-27 22:39:00,872 INFO L246 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2019-11-27 22:39:00,872 INFO L246 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2019-11-27 22:39:00,873 INFO L246 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2019-11-27 22:39:00,873 INFO L246 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2019-11-27 22:39:00,873 INFO L246 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2019-11-27 22:39:00,873 INFO L246 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2019-11-27 22:39:00,873 INFO L246 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2019-11-27 22:39:00,873 INFO L246 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2019-11-27 22:39:00,874 INFO L246 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2019-11-27 22:39:00,874 INFO L249 CegarLoopResult]: At program point L577(lines 577 594) the Hoare annotation is: true [2019-11-27 22:39:00,874 INFO L246 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,874 INFO L246 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,874 INFO L246 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,875 INFO L246 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,875 INFO L246 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,875 INFO L246 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2019-11-27 22:39:00,875 INFO L246 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2019-11-27 22:39:00,875 INFO L246 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2019-11-27 22:39:00,875 INFO L246 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2019-11-27 22:39:00,876 INFO L246 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2019-11-27 22:39:00,876 INFO L246 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2019-11-27 22:39:00,876 INFO L246 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2019-11-27 22:39:00,876 INFO L246 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2019-11-27 22:39:00,876 INFO L246 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2019-11-27 22:39:00,876 INFO L246 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,877 INFO L246 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,877 INFO L246 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,877 INFO L246 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,877 INFO L246 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2019-11-27 22:39:00,877 INFO L246 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,878 INFO L246 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2019-11-27 22:39:00,878 INFO L246 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2019-11-27 22:39:00,878 INFO L246 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2019-11-27 22:39:00,878 INFO L246 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2019-11-27 22:39:00,878 INFO L246 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2019-11-27 22:39:00,878 INFO L246 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2019-11-27 22:39:00,879 INFO L246 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2019-11-27 22:39:00,879 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-27 22:39:00,879 INFO L246 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2019-11-27 22:39:00,879 INFO L246 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2019-11-27 22:39:00,879 INFO L246 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2019-11-27 22:39:00,879 INFO L246 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2019-11-27 22:39:00,880 INFO L246 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2019-11-27 22:39:00,880 INFO L246 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2019-11-27 22:39:00,880 INFO L246 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,880 INFO L242 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1))) (or (and (not (= ~a16~0 6)) .cse0) (and .cse0 (= 15 ~a8~0)) (and (= ~a17~0 1) .cse0) (and (= 1 ~a7~0) (<= ~a21~0 0)))) [2019-11-27 22:39:00,881 INFO L246 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,881 INFO L246 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,881 INFO L246 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,881 INFO L246 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,881 INFO L246 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2019-11-27 22:39:00,881 INFO L246 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2019-11-27 22:39:00,882 INFO L246 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2019-11-27 22:39:00,882 INFO L246 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2019-11-27 22:39:00,882 INFO L246 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2019-11-27 22:39:00,882 INFO L246 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2019-11-27 22:39:00,882 INFO L246 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2019-11-27 22:39:00,883 INFO L246 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2019-11-27 22:39:00,883 INFO L246 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,883 INFO L246 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,883 INFO L246 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,883 INFO L246 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,883 INFO L246 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,884 INFO L246 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2019-11-27 22:39:00,884 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-27 22:39:00,884 INFO L246 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2019-11-27 22:39:00,884 INFO L246 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2019-11-27 22:39:00,884 INFO L246 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2019-11-27 22:39:00,885 INFO L246 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2019-11-27 22:39:00,885 INFO L246 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2019-11-27 22:39:00,885 INFO L246 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2019-11-27 22:39:00,885 INFO L246 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2019-11-27 22:39:00,885 INFO L246 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2019-11-27 22:39:00,885 INFO L246 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2019-11-27 22:39:00,886 INFO L246 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2019-11-27 22:39:00,886 INFO L246 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2019-11-27 22:39:00,886 INFO L246 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,886 INFO L246 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,886 INFO L246 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,886 INFO L246 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,887 INFO L246 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2019-11-27 22:39:00,887 INFO L246 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,887 INFO L246 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,887 INFO L246 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2019-11-27 22:39:00,887 INFO L246 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2019-11-27 22:39:00,887 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-27 22:39:00,888 INFO L246 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2019-11-27 22:39:00,888 INFO L246 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2019-11-27 22:39:00,888 INFO L246 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2019-11-27 22:39:00,888 INFO L246 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2019-11-27 22:39:00,888 INFO L246 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2019-11-27 22:39:00,888 INFO L246 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2019-11-27 22:39:00,889 INFO L246 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2019-11-27 22:39:00,889 INFO L246 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2019-11-27 22:39:00,889 INFO L246 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2019-11-27 22:39:00,889 INFO L246 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2019-11-27 22:39:00,889 INFO L246 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,890 INFO L246 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,890 INFO L246 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,890 INFO L246 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,890 INFO L246 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,890 INFO L246 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2019-11-27 22:39:00,890 INFO L246 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,891 INFO L246 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2019-11-27 22:39:00,891 INFO L246 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2019-11-27 22:39:00,891 INFO L246 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2019-11-27 22:39:00,891 INFO L246 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2019-11-27 22:39:00,891 INFO L246 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2019-11-27 22:39:00,891 INFO L246 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2019-11-27 22:39:00,892 INFO L246 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2019-11-27 22:39:00,892 INFO L246 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2019-11-27 22:39:00,892 INFO L246 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2019-11-27 22:39:00,892 INFO L246 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2019-11-27 22:39:00,892 INFO L246 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2019-11-27 22:39:00,892 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-27 22:39:00,893 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 557) no Hoare annotation was computed. [2019-11-27 22:39:00,893 INFO L246 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2019-11-27 22:39:00,893 INFO L246 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2019-11-27 22:39:00,893 INFO L246 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2019-11-27 22:39:00,893 INFO L246 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,893 INFO L246 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,894 INFO L246 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,894 INFO L246 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,894 INFO L246 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,894 INFO L246 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:39:00,894 INFO L246 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2019-11-27 22:39:00,894 INFO L246 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2019-11-27 22:39:00,895 INFO L246 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2019-11-27 22:39:00,895 INFO L246 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2019-11-27 22:39:00,895 INFO L246 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2019-11-27 22:39:00,895 INFO L246 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2019-11-27 22:39:00,895 INFO L246 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2019-11-27 22:39:00,895 INFO L246 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2019-11-27 22:39:00,896 INFO L246 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2019-11-27 22:39:00,896 INFO L246 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2019-11-27 22:39:00,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 10:39:00 BoogieIcfgContainer [2019-11-27 22:39:00,915 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 22:39:00,915 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 22:39:00,915 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 22:39:00,916 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 22:39:00,916 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 10:38:51" (3/4) ... [2019-11-27 22:39:00,920 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-27 22:39:00,942 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-27 22:39:00,943 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-27 22:39:01,101 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 22:39:01,101 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 22:39:01,104 INFO L168 Benchmark]: Toolchain (without parser) took 11403.90 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 437.3 MB). Free memory was 946.9 MB in the beginning and 1.2 GB in the end (delta: -274.9 MB). Peak memory consumption was 162.4 MB. Max. memory is 11.5 GB. [2019-11-27 22:39:01,104 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 22:39:01,104 INFO L168 Benchmark]: CACSL2BoogieTranslator took 747.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -187.8 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. [2019-11-27 22:39:01,105 INFO L168 Benchmark]: Boogie Procedure Inliner took 132.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-27 22:39:01,105 INFO L168 Benchmark]: Boogie Preprocessor took 81.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-27 22:39:01,106 INFO L168 Benchmark]: RCFGBuilder took 1258.59 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: 103.7 MB). Peak memory consumption was 103.7 MB. Max. memory is 11.5 GB. [2019-11-27 22:39:01,106 INFO L168 Benchmark]: TraceAbstraction took 8990.44 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 284.2 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -227.6 MB). Peak memory consumption was 56.5 MB. Max. memory is 11.5 GB. [2019-11-27 22:39:01,107 INFO L168 Benchmark]: Witness Printer took 186.25 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2019-11-27 22:39:01,109 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 747.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -187.8 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 132.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 81.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1258.59 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: 103.7 MB). Peak memory consumption was 103.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8990.44 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 284.2 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -227.6 MB). Peak memory consumption was 56.5 MB. Max. memory is 11.5 GB. * Witness Printer took 186.25 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 557]: 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: 30]: Loop Invariant Derived loop invariant: (((!(a16 == 6) && a21 == 1) || (a21 == 1 && 15 == a8)) || (a17 == 1 && a21 == 1)) || (1 == a7 && a21 <= 0) - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((!(a16 == 6) && a21 == 1) || (a21 == 1 && 15 == a8)) || (a17 == 1 && a21 == 1)) || (1 == a7 && a21 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 198 locations, 1 error locations. Result: SAFE, OverallTime: 8.6s, OverallIterations: 9, TraceHistogramMax: 6, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 724 SDtfs, 1739 SDslu, 87 SDs, 0 SdLazy, 4163 SolverSat, 643 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 277 GetRequests, 257 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1707occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 1053 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 36 NumberOfFragments, 61 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1565 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 210 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1918 NumberOfCodeBlocks, 1918 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1908 ConstructedInterpolants, 0 QuantifiedInterpolants, 755365 SizeOfPredicates, 1 NumberOfNonLiveVariables, 447 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 1401/1428 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...