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/Problem15_label05_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-11 22:41:51,413 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-11 22:41:51,416 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-11 22:41:51,434 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-11 22:41:51,435 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-11 22:41:51,436 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-11 22:41:51,438 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-11 22:41:51,440 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-11 22:41:51,442 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-11 22:41:51,443 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-11 22:41:51,448 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-11 22:41:51,448 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-11 22:41:51,449 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-11 22:41:51,450 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-11 22:41:51,453 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-11 22:41:51,454 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-11 22:41:51,455 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-11 22:41:51,459 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-11 22:41:51,469 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-11 22:41:51,471 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-11 22:41:51,475 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-11 22:41:51,477 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-11 22:41:51,482 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-11 22:41:51,482 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-11 22:41:51,482 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-11 22:41:51,484 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-11 22:41:51,485 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-11 22:41:51,486 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-11 22:41:51,487 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-11 22:41:51,488 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-11 22:41:51,488 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-11 22:41:51,492 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-11 22:41:51,492 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-11 22:41:51,492 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-11 22:41:51,493 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-11 22:41:51,496 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-11 22:41:51,497 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 22:41:51,525 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-11 22:41:51,525 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-11 22:41:51,527 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-11 22:41:51,527 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-11 22:41:51,527 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-11 22:41:51,527 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-11 22:41:51,528 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-11 22:41:51,528 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-11 22:41:51,528 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-11 22:41:51,531 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-11 22:41:51,531 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-11 22:41:51,532 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-11 22:41:51,532 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-11 22:41:51,533 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-11 22:41:51,533 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-11 22:41:51,533 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-11 22:41:51,533 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-11 22:41:51,533 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-11 22:41:51,534 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-11 22:41:51,534 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-11 22:41:51,534 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-11 22:41:51,534 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-11 22:41:51,534 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-11 22:41:51,535 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-11 22:41:51,535 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-11 22:41:51,535 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-11 22:41:51,535 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-11 22:41:51,535 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-11 22:41:51,537 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-11 22:41:51,538 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-11 22:41:51,538 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-11 22:41:51,538 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-11 22:41:51,538 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-11 22:41:51,538 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-11 22:41:51,594 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-11 22:41:51,610 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-11 22:41:51,615 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-11 22:41:51,617 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-11 22:41:51,618 INFO L276 PluginConnector]: CDTParser initialized [2018-09-11 22:41:51,619 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label05_true-unreach-call.c [2018-09-11 22:41:51,961 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caa52938e/c051e3be159d42a883ba94bd04e674c3/FLAG5f5085b5a [2018-09-11 22:41:52,287 INFO L276 CDTParser]: Found 1 translation units. [2018-09-11 22:41:52,288 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label05_true-unreach-call.c [2018-09-11 22:41:52,312 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caa52938e/c051e3be159d42a883ba94bd04e674c3/FLAG5f5085b5a [2018-09-11 22:41:52,327 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caa52938e/c051e3be159d42a883ba94bd04e674c3 [2018-09-11 22:41:52,339 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-11 22:41:52,343 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-11 22:41:52,344 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-11 22:41:52,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-11 22:41:52,351 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-11 22:41:52,352 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 10:41:52" (1/1) ... [2018-09-11 22:41:52,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cdb4531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 10:41:52, skipping insertion in model container [2018-09-11 22:41:52,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 10:41:52" (1/1) ... [2018-09-11 22:41:52,643 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-11 22:41:53,262 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 22:41:53,282 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-11 22:41:53,568 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 22:41:53,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 10:41:53 WrapperNode [2018-09-11 22:41:53,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-11 22:41:53,721 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-11 22:41:53,721 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-11 22:41:53,721 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-11 22:41:53,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 10:41:53" (1/1) ... [2018-09-11 22:41:53,778 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 10:41:53" (1/1) ... [2018-09-11 22:41:53,961 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-11 22:41:53,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-11 22:41:53,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-11 22:41:53,962 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-11 22:41:54,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 10:41:53" (1/1) ... [2018-09-11 22:41:54,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 10:41:53" (1/1) ... [2018-09-11 22:41:54,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 10:41:53" (1/1) ... [2018-09-11 22:41:54,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 10:41:53" (1/1) ... [2018-09-11 22:41:54,542 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 10:41:53" (1/1) ... [2018-09-11 22:41:54,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 10:41:53" (1/1) ... [2018-09-11 22:41:54,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 10:41:53" (1/1) ... [2018-09-11 22:41:54,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-11 22:41:54,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-11 22:41:54,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-11 22:41:54,655 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-11 22:41:54,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 10:41:53" (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 22:41:54,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-11 22:41:54,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-11 22:41:54,726 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 22:41:54,726 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 22:41:54,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-11 22:41:54,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-11 22:41:54,727 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-11 22:41:54,727 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-11 22:41:54,727 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_output2 [2018-09-11 22:41:54,727 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_output2 [2018-09-11 22:42:03,846 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-11 22:42:03,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 10:42:03 BoogieIcfgContainer [2018-09-11 22:42:03,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-11 22:42:03,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-11 22:42:03,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-11 22:42:03,852 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-11 22:42:03,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 10:41:52" (1/3) ... [2018-09-11 22:42:03,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a2b20d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 10:42:03, skipping insertion in model container [2018-09-11 22:42:03,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 10:41:53" (2/3) ... [2018-09-11 22:42:03,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a2b20d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 10:42:03, skipping insertion in model container [2018-09-11 22:42:03,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 10:42:03" (3/3) ... [2018-09-11 22:42:03,857 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label05_true-unreach-call.c [2018-09-11 22:42:03,866 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-11 22:42:03,874 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-11 22:42:03,932 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-11 22:42:03,933 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-11 22:42:03,933 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-11 22:42:03,933 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-11 22:42:03,934 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-11 22:42:03,934 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-11 22:42:03,934 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-11 22:42:03,934 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-11 22:42:03,934 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-11 22:42:03,974 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-09-11 22:42:03,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-09-11 22:42:03,985 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 22:42:03,986 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] [2018-09-11 22:42:03,987 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 22:42:03,991 INFO L82 PathProgramCache]: Analyzing trace with hash 286027249, now seen corresponding path program 1 times [2018-09-11 22:42:03,993 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 22:42:03,994 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 72 with the following transitions: [2018-09-11 22:42:03,996 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], [433], [441], [449], [457], [465], [469], [471], [1567], [1571], [1577], [1581], [1662], [1663], [1664], [1666] [2018-09-11 22:42:04,063 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 22:42:04,064 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 22:42:06,179 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 22:42:06,181 INFO L272 AbstractInterpreter]: Visited 70 different actions 70 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-11 22:42:06,204 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 22:42:07,236 INFO L232 lantSequenceWeakener]: Weakened 69 states. On average, predicates are now at 80.87% of their original sizes. [2018-09-11 22:42:07,236 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 22:42:07,542 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 22:42:07,543 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 22:42:07,544 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-11 22:42:07,544 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 22:42:07,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-11 22:42:07,558 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-11 22:42:07,559 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-11 22:42:07,562 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 6 states. [2018-09-11 22:42:26,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 22:42:26,263 INFO L93 Difference]: Finished difference Result 1184 states and 2139 transitions. [2018-09-11 22:42:26,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-11 22:42:26,268 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 71 [2018-09-11 22:42:26,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 22:42:26,289 INFO L225 Difference]: With dead ends: 1184 [2018-09-11 22:42:26,289 INFO L226 Difference]: Without dead ends: 744 [2018-09-11 22:42:26,299 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 70 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-11 22:42:26,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-09-11 22:42:26,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 742. [2018-09-11 22:42:26,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2018-09-11 22:42:26,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1072 transitions. [2018-09-11 22:42:26,418 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1072 transitions. Word has length 71 [2018-09-11 22:42:26,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 22:42:26,420 INFO L480 AbstractCegarLoop]: Abstraction has 742 states and 1072 transitions. [2018-09-11 22:42:26,420 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-11 22:42:26,421 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1072 transitions. [2018-09-11 22:42:26,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2018-09-11 22:42:26,433 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 22:42:26,433 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, 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] [2018-09-11 22:42:26,434 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 22:42:26,434 INFO L82 PathProgramCache]: Analyzing trace with hash 2058209671, now seen corresponding path program 1 times [2018-09-11 22:42:26,435 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 22:42:26,435 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 168 with the following transitions: [2018-09-11 22:42:26,436 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], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [495], [499], [510], [514], [518], [522], [526], [530], [534], [538], [542], [546], [550], [554], [558], [569], [573], [577], [581], [585], [596], [600], [604], [608], [612], [616], [619], [1563], [1567], [1571], [1577], [1581], [1583], [1662], [1663], [1664], [1666], [1667] [2018-09-11 22:42:26,443 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 22:42:26,443 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