java -Xmx8000000000 -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 --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label59_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-11 09:23:28,378 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-11 09:23:28,380 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-11 09:23:28,394 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-11 09:23:28,394 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-11 09:23:28,395 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-11 09:23:28,397 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-11 09:23:28,399 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-11 09:23:28,400 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-11 09:23:28,401 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-11 09:23:28,402 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-11 09:23:28,403 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-11 09:23:28,404 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-11 09:23:28,405 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-11 09:23:28,406 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-11 09:23:28,407 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-11 09:23:28,408 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-11 09:23:28,410 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-11 09:23:28,412 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-11 09:23:28,414 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-11 09:23:28,415 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-11 09:23:28,416 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-11 09:23:28,419 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-11 09:23:28,419 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-11 09:23:28,420 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-11 09:23:28,421 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-11 09:23:28,422 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-11 09:23:28,423 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-11 09:23:28,424 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-11 09:23:28,425 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-11 09:23:28,425 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-11 09:23:28,426 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-11 09:23:28,426 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-11 09:23:28,427 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-11 09:23:28,428 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-11 09:23:28,429 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-11 09:23:28,429 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-11 09:23:28,452 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-11 09:23:28,452 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-11 09:23:28,453 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-11 09:23:28,453 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-11 09:23:28,454 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-11 09:23:28,454 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-11 09:23:28,454 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-11 09:23:28,454 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-11 09:23:28,454 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-11 09:23:28,455 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-11 09:23:28,455 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-11 09:23:28,457 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-11 09:23:28,457 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-11 09:23:28,457 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-11 09:23:28,457 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-11 09:23:28,457 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-11 09:23:28,458 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-11 09:23:28,458 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-11 09:23:28,458 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-11 09:23:28,458 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-11 09:23:28,460 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-11 09:23:28,460 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-11 09:23:28,460 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-11 09:23:28,460 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-11 09:23:28,461 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-11 09:23:28,461 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-11 09:23:28,461 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-11 09:23:28,461 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-11 09:23:28,462 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-11 09:23:28,462 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-11 09:23:28,462 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-11 09:23:28,462 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-11 09:23:28,462 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-11 09:23:28,518 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-11 09:23:28,538 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-11 09:23:28,545 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-11 09:23:28,547 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-11 09:23:28,547 INFO L276 PluginConnector]: CDTParser initialized [2018-09-11 09:23:28,548 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label59_true-unreach-call_false-termination.c [2018-09-11 09:23:28,957 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d374205f/d1e2a4ea11f14bd685fdf343afdc8957/FLAGd2ed0e823 [2018-09-11 09:23:29,257 INFO L276 CDTParser]: Found 1 translation units. [2018-09-11 09:23:29,258 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label59_true-unreach-call_false-termination.c [2018-09-11 09:23:29,286 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d374205f/d1e2a4ea11f14bd685fdf343afdc8957/FLAGd2ed0e823 [2018-09-11 09:23:29,311 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d374205f/d1e2a4ea11f14bd685fdf343afdc8957 [2018-09-11 09:23:29,327 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-11 09:23:29,331 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-11 09:23:29,333 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-11 09:23:29,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-11 09:23:29,345 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-11 09:23:29,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 09:23:29" (1/1) ... [2018-09-11 09:23:29,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b7a7800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:23:29, skipping insertion in model container [2018-09-11 09:23:29,351 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 09:23:29" (1/1) ... [2018-09-11 09:23:29,629 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-11 09:23:29,932 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 09:23:29,954 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-11 09:23:30,083 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 09:23:30,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:23:30 WrapperNode [2018-09-11 09:23:30,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-11 09:23:30,134 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-11 09:23:30,134 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-11 09:23:30,134 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-11 09:23:30,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:23:30" (1/1) ... [2018-09-11 09:23:30,176 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:23:30" (1/1) ... [2018-09-11 09:23:30,231 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-11 09:23:30,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-11 09:23:30,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-11 09:23:30,233 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-11 09:23:30,385 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:23:30" (1/1) ... [2018-09-11 09:23:30,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:23:30" (1/1) ... [2018-09-11 09:23:30,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:23:30" (1/1) ... [2018-09-11 09:23:30,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:23:30" (1/1) ... [2018-09-11 09:23:30,419 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:23:30" (1/1) ... [2018-09-11 09:23:30,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:23:30" (1/1) ... [2018-09-11 09:23:30,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:23:30" (1/1) ... [2018-09-11 09:23:30,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-11 09:23:30,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-11 09:23:30,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-11 09:23:30,450 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-11 09:23:30,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:23:30" (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 [2018-09-11 09:23:30,541 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-09-11 09:23:30,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-09-11 09:23:30,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-11 09:23:30,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-11 09:23:30,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-11 09:23:30,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-11 09:23:30,543 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-11 09:23:30,543 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-11 09:23:33,891 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-11 09:23:33,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 09:23:33 BoogieIcfgContainer [2018-09-11 09:23:33,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-11 09:23:33,894 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-11 09:23:33,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-11 09:23:33,898 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-11 09:23:33,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 09:23:29" (1/3) ... [2018-09-11 09:23:33,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@203789a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 09:23:33, skipping insertion in model container [2018-09-11 09:23:33,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:23:30" (2/3) ... [2018-09-11 09:23:33,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@203789a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 09:23:33, skipping insertion in model container [2018-09-11 09:23:33,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 09:23:33" (3/3) ... [2018-09-11 09:23:33,902 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label59_true-unreach-call_false-termination.c [2018-09-11 09:23:33,913 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-11 09:23:33,922 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-11 09:23:33,973 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-11 09:23:33,974 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-11 09:23:33,974 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-11 09:23:33,974 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-11 09:23:33,975 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-11 09:23:33,975 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-11 09:23:33,975 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-11 09:23:33,975 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-11 09:23:33,975 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-11 09:23:34,002 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-09-11 09:23:34,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-09-11 09:23:34,020 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 09:23:34,021 INFO L376 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] [2018-09-11 09:23:34,023 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 09:23:34,028 INFO L82 PathProgramCache]: Analyzing trace with hash -459539128, now seen corresponding path program 1 times [2018-09-11 09:23:34,030 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 09:23:34,032 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 97 with the following transitions: [2018-09-11 09:23:34,035 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [20], [24], [28], [32], [36], [40], [44], [48], [52], [56], [60], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [164], [168], [172], [176], [180], [184], [188], [192], [196], [200], [204], [208], [212], [216], [220], [224], [228], [232], [236], [240], [244], [248], [252], [256], [260], [264], [271], [279], [287], [295], [303], [311], [319], [327], [335], [343], [351], [359], [367], [375], [383], [391], [399], [403], [405], [756], [757], [761], [765], [771], [775], [782], [783], [784], [786] [2018-09-11 09:23:34,113 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-11 09:23:34,114 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 09:23:53,094 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 09:23:53,097 INFO L272 AbstractInterpreter]: Visited 67 different actions 67 times. Never merged. Never widened. Never found a fixpoint. Largest state had 41 variables. [2018-09-11 09:23:53,111 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 09:23:56,235 INFO L232 lantSequenceWeakener]: Weakened 66 states. On average, predicates are now at 79.62% of their original sizes. [2018-09-11 09:23:56,235 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 09:23:58,441 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 09:23:58,443 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 09:23:58,444 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-11 09:23:58,444 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 09:23:58,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-11 09:23:58,458 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-11 09:23:58,459 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-09-11 09:23:58,462 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 12 states. [2018-09-11 09:24:07,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 09:24:07,799 INFO L93 Difference]: Finished difference Result 475 states and 794 transitions. [2018-09-11 09:24:07,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-11 09:24:07,801 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 96 [2018-09-11 09:24:07,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 09:24:07,818 INFO L225 Difference]: With dead ends: 475 [2018-09-11 09:24:07,818 INFO L226 Difference]: Without dead ends: 265 [2018-09-11 09:24:07,825 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 101 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=106, Invalid=200, Unknown=0, NotChecked=0, Total=306 [2018-09-11 09:24:07,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2018-09-11 09:24:07,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2018-09-11 09:24:07,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2018-09-11 09:24:07,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 397 transitions. [2018-09-11 09:24:07,898 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 397 transitions. Word has length 96 [2018-09-11 09:24:07,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 09:24:07,899 INFO L480 AbstractCegarLoop]: Abstraction has 265 states and 397 transitions. [2018-09-11 09:24:07,899 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-11 09:24:07,899 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 397 transitions. [2018-09-11 09:24:07,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-09-11 09:24:07,915 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 09:24:07,915 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-09-11 09:24:07,916 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 09:24:07,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1133562263, now seen corresponding path program 1 times [2018-09-11 09:24:07,919 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 09:24:07,919 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 106 with the following transitions: [2018-09-11 09:24:07,920 INFO L202 CegarAbsIntRunner]: [0], [3], [4], [8], [12], [16], [20], [24], [28], [32], [36], [40], [44], [48], [52], [56], [60], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [164], [168], [172], [176], [180], [184], [188], [192], [196], [200], [204], [208], [212], [216], [220], [224], [228], [232], [236], [240], [244], [248], [252], [256], [260], [264], [271], [279], [287], [295], [303], [311], [319], [327], [335], [343], [351], [359], [367], [375], [383], [391], [399], [403], [405], [755], [756], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-09-11 09:24:07,928 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-11 09:24:07,929 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 09:25:44,498 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 09:25:44,498 INFO L272 AbstractInterpreter]: Visited 99 different actions 164 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-09-11 09:25:44,507 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 09:25:54,036 INFO L232 lantSequenceWeakener]: Weakened 103 states. On average, predicates are now at 80.26% of their original sizes. [2018-09-11 09:25:54,036 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 09:25:57,190 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 09:25:57,190 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 09:25:57,190 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2018-09-11 09:25:57,190 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 09:25:57,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-09-11 09:25:57,192 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-09-11 09:25:57,193 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-09-11 09:25:57,194 INFO L87 Difference]: Start difference. First operand 265 states and 397 transitions. Second operand 19 states. [2018-09-11 09:26:19,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 09:26:19,918 INFO L93 Difference]: Finished difference Result 608 states and 995 transitions. [2018-09-11 09:26:19,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-11 09:26:19,919 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 105 [2018-09-11 09:26:19,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 09:26:19,926 INFO L225 Difference]: With dead ends: 608 [2018-09-11 09:26:19,926 INFO L226 Difference]: Without dead ends: 410 [2018-09-11 09:26:19,929 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 123 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=305, Invalid=1101, Unknown=0, NotChecked=0, Total=1406 [2018-09-11 09:26:19,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2018-09-11 09:26:19,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 403. [2018-09-11 09:26:19,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2018-09-11 09:26:19,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 542 transitions. [2018-09-11 09:26:19,981 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 542 transitions. Word has length 105 [2018-09-11 09:26:19,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 09:26:19,981 INFO L480 AbstractCegarLoop]: Abstraction has 403 states and 542 transitions. [2018-09-11 09:26:19,982 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-09-11 09:26:19,982 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 542 transitions. [2018-09-11 09:26:19,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-09-11 09:26:19,985 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 09:26:19,986 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 09:26:19,986 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 09:26:19,987 INFO L82 PathProgramCache]: Analyzing trace with hash -154854213, now seen corresponding path program 1 times [2018-09-11 09:26:19,987 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 09:26:19,987 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2018-09-11 09:26:19,988 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [15], [16], [20], [24], [28], [32], [36], [40], [44], [48], [52], [56], [60], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [164], [168], [172], [176], [180], [184], [188], [192], [196], [200], [204], [208], [212], [216], [220], [224], [228], [232], [236], [240], [244], [248], [252], [256], [260], [264], [271], [279], [287], [295], [303], [311], [319], [327], [335], [343], [351], [359], [367], [375], [383], [391], [399], [403], [405], [755], [756], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-09-11 09:26:19,994 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-11 09:26:19,995 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 09:27:52,305 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 09:27:52,305 INFO L272 AbstractInterpreter]: Visited 99 different actions 163 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-09-11 09:27:52,310 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown