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_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label02_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-11 21:37:43,366 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-11 21:37:43,370 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-11 21:37:43,388 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-11 21:37:43,388 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-11 21:37:43,389 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-11 21:37:43,390 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-11 21:37:43,392 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-11 21:37:43,394 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-11 21:37:43,395 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-11 21:37:43,395 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-11 21:37:43,396 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-11 21:37:43,397 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-11 21:37:43,398 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-11 21:37:43,399 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-11 21:37:43,400 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-11 21:37:43,401 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-11 21:37:43,403 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-11 21:37:43,405 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-11 21:37:43,406 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-11 21:37:43,407 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-11 21:37:43,409 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-11 21:37:43,411 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-11 21:37:43,412 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-11 21:37:43,412 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-11 21:37:43,413 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-11 21:37:43,414 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-11 21:37:43,415 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-11 21:37:43,416 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-11 21:37:43,417 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-11 21:37:43,417 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-11 21:37:43,418 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-11 21:37:43,418 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-11 21:37:43,419 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-11 21:37:43,420 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-11 21:37:43,420 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-11 21:37:43,421 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-11 21:37:43,447 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-11 21:37:43,447 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-11 21:37:43,448 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-11 21:37:43,448 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-11 21:37:43,449 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-11 21:37:43,449 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-11 21:37:43,449 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-11 21:37:43,449 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-11 21:37:43,450 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-11 21:37:43,450 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-11 21:37:43,450 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-11 21:37:43,451 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-11 21:37:43,451 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-11 21:37:43,452 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-11 21:37:43,452 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-11 21:37:43,452 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-11 21:37:43,452 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-11 21:37:43,453 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-11 21:37:43,453 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-11 21:37:43,454 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-11 21:37:43,455 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-11 21:37:43,455 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-11 21:37:43,455 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-11 21:37:43,455 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-11 21:37:43,455 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-11 21:37:43,455 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-11 21:37:43,456 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-11 21:37:43,456 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-11 21:37:43,456 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-11 21:37:43,456 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-11 21:37:43,457 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-11 21:37:43,457 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-11 21:37:43,457 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-11 21:37:43,457 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-11 21:37:43,510 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-11 21:37:43,527 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-11 21:37:43,531 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-11 21:37:43,532 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-11 21:37:43,533 INFO L276 PluginConnector]: CDTParser initialized [2018-09-11 21:37:43,533 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label02_true-unreach-call.c [2018-09-11 21:37:43,874 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cdbaca53/52423d9894a941d0bc066b31f30f05c6/FLAGbcc1ee6b1 [2018-09-11 21:37:44,159 INFO L276 CDTParser]: Found 1 translation units. [2018-09-11 21:37:44,160 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label02_true-unreach-call.c [2018-09-11 21:37:44,184 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cdbaca53/52423d9894a941d0bc066b31f30f05c6/FLAGbcc1ee6b1 [2018-09-11 21:37:44,207 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cdbaca53/52423d9894a941d0bc066b31f30f05c6 [2018-09-11 21:37:44,220 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-11 21:37:44,223 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-11 21:37:44,224 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-11 21:37:44,225 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-11 21:37:44,232 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-11 21:37:44,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 09:37:44" (1/1) ... [2018-09-11 21:37:44,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6588efe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:37:44, skipping insertion in model container [2018-09-11 21:37:44,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 09:37:44" (1/1) ... [2018-09-11 21:37:44,527 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-11 21:37:44,831 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 21:37:44,860 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-11 21:37:44,997 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 21:37:45,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:37:45 WrapperNode [2018-09-11 21:37:45,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-11 21:37:45,063 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-11 21:37:45,063 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-11 21:37:45,064 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-11 21:37:45,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:37:45" (1/1) ... [2018-09-11 21:37:45,115 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:37:45" (1/1) ... [2018-09-11 21:37:45,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-11 21:37:45,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-11 21:37:45,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-11 21:37:45,185 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-11 21:37:45,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:37:45" (1/1) ... [2018-09-11 21:37:45,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:37:45" (1/1) ... [2018-09-11 21:37:45,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:37:45" (1/1) ... [2018-09-11 21:37:45,203 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:37:45" (1/1) ... [2018-09-11 21:37:45,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:37:45" (1/1) ... [2018-09-11 21:37:45,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:37:45" (1/1) ... [2018-09-11 21:37:45,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:37:45" (1/1) ... [2018-09-11 21:37:45,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-11 21:37:45,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-11 21:37:45,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-11 21:37:45,425 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-11 21:37:45,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:37:45" (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 21:37:45,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-11 21:37:45,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-11 21:37:45,516 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-09-11 21:37:45,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-09-11 21:37:45,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-11 21:37:45,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-11 21:37:45,516 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-11 21:37:45,517 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-11 21:37:48,743 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-11 21:37:48,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 09:37:48 BoogieIcfgContainer [2018-09-11 21:37:48,743 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-11 21:37:48,745 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-11 21:37:48,745 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-11 21:37:48,748 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-11 21:37:48,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 09:37:44" (1/3) ... [2018-09-11 21:37:48,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9bd2d57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 09:37:48, skipping insertion in model container [2018-09-11 21:37:48,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:37:45" (2/3) ... [2018-09-11 21:37:48,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9bd2d57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 09:37:48, skipping insertion in model container [2018-09-11 21:37:48,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 09:37:48" (3/3) ... [2018-09-11 21:37:48,752 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label02_true-unreach-call.c [2018-09-11 21:37:48,762 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-11 21:37:48,771 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-11 21:37:48,824 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-11 21:37:48,825 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-11 21:37:48,825 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-11 21:37:48,825 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-11 21:37:48,825 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-11 21:37:48,825 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-11 21:37:48,826 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-11 21:37:48,826 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-11 21:37:48,826 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-11 21:37:48,852 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-09-11 21:37:48,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-09-11 21:37:48,864 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 21:37:48,865 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] [2018-09-11 21:37:48,866 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 21:37:48,872 INFO L82 PathProgramCache]: Analyzing trace with hash 417311892, now seen corresponding path program 1 times [2018-09-11 21:37:48,874 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 21:37:48,875 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 67 with the following transitions: [2018-09-11 21:37:48,877 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [429], [431], [796], [800], [806], [810], [817], [818], [819], [821] [2018-09-11 21:37:48,948 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 21:37:48,948 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 21:37:50,731 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 21:37:50,733 INFO L272 AbstractInterpreter]: Visited 65 different actions 65 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-11 21:37:50,772 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 21:37:51,555 INFO L232 lantSequenceWeakener]: Weakened 64 states. On average, predicates are now at 76.05% of their original sizes. [2018-09-11 21:37:51,555 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 21:37:51,906 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 21:37:51,910 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 21:37:51,910 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-11 21:37:51,910 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 21:37:51,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-11 21:37:51,926 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-11 21:37:51,927 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-11 21:37:51,930 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 6 states. [2018-09-11 21:37:55,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 21:37:55,756 INFO L93 Difference]: Finished difference Result 576 states and 995 transitions. [2018-09-11 21:37:55,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-11 21:37:55,759 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2018-09-11 21:37:55,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 21:37:55,777 INFO L225 Difference]: With dead ends: 576 [2018-09-11 21:37:55,777 INFO L226 Difference]: Without dead ends: 358 [2018-09-11 21:37:55,784 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 65 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-11 21:37:55,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2018-09-11 21:37:55,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 356. [2018-09-11 21:37:55,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-09-11 21:37:55,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 497 transitions. [2018-09-11 21:37:55,878 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 497 transitions. Word has length 66 [2018-09-11 21:37:55,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 21:37:55,879 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 497 transitions. [2018-09-11 21:37:55,879 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-11 21:37:55,879 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 497 transitions. [2018-09-11 21:37:55,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-09-11 21:37:55,893 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 21:37:55,894 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 21:37:55,895 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 21:37:55,895 INFO L82 PathProgramCache]: Analyzing trace with hash 696839107, now seen corresponding path program 1 times [2018-09-11 21:37:55,895 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 21:37:55,896 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 138 with the following transitions: [2018-09-11 21:37:55,896 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [429], [431], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-11 21:37:55,907 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 21:37:55,909 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown