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/Problem16_label50_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-08 14:32:49,341 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-08 14:32:49,343 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-08 14:32:49,358 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-08 14:32:49,358 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-08 14:32:49,359 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-08 14:32:49,361 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-08 14:32:49,362 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-08 14:32:49,364 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-08 14:32:49,365 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-08 14:32:49,366 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-08 14:32:49,366 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-08 14:32:49,367 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-08 14:32:49,368 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-08 14:32:49,369 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-08 14:32:49,370 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-08 14:32:49,371 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-08 14:32:49,373 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-08 14:32:49,375 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-08 14:32:49,376 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-08 14:32:49,378 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-08 14:32:49,379 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-08 14:32:49,381 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-08-08 14:32:49,382 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-08-08 14:32:49,382 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-08-08 14:32:49,383 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-08-08 14:32:49,384 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-08-08 14:32:49,385 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-08-08 14:32:49,386 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-08-08 14:32:49,387 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-08-08 14:32:49,387 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-08-08 14:32:49,388 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-08-08 14:32:49,389 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-08-08 14:32:49,389 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-08-08 14:32:49,390 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-08-08 14:32:49,391 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-08-08 14:32:49,391 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 [2018-08-08 14:32:49,406 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-08 14:32:49,406 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-08 14:32:49,407 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-08 14:32:49,407 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-08 14:32:49,408 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-08 14:32:49,408 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-08 14:32:49,408 INFO L133 SettingsManager]: * Congruence Domain=false [2018-08-08 14:32:49,408 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-08 14:32:49,409 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-08-08 14:32:49,409 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-08 14:32:49,409 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-08 14:32:49,409 INFO L133 SettingsManager]: * Interval Domain=false [2018-08-08 14:32:49,410 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-08 14:32:49,410 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-08 14:32:49,410 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-08 14:32:49,411 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-08 14:32:49,411 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-08 14:32:49,411 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-08 14:32:49,411 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-08 14:32:49,412 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-08 14:32:49,412 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-08 14:32:49,412 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-08 14:32:49,412 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-08 14:32:49,412 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-08 14:32:49,413 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-08 14:32:49,413 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-08 14:32:49,413 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-08 14:32:49,413 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-08 14:32:49,414 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-08-08 14:32:49,414 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-08 14:32:49,414 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-08 14:32:49,414 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-08 14:32:49,414 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-08 14:32:49,414 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-08 14:32:49,483 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-08 14:32:49,500 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-08 14:32:49,507 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-08 14:32:49,509 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-08 14:32:49,509 INFO L276 PluginConnector]: CDTParser initialized [2018-08-08 14:32:49,510 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label50_true-unreach-call.c [2018-08-08 14:32:49,846 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f50f625f/d563edabd9714adc88ec4e1c11c33e1d/FLAG42863d868 [2018-08-08 14:32:50,197 INFO L276 CDTParser]: Found 1 translation units. [2018-08-08 14:32:50,197 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label50_true-unreach-call.c [2018-08-08 14:32:50,221 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f50f625f/d563edabd9714adc88ec4e1c11c33e1d/FLAG42863d868 [2018-08-08 14:32:50,237 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f50f625f/d563edabd9714adc88ec4e1c11c33e1d [2018-08-08 14:32:50,248 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-08 14:32:50,249 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-08 14:32:50,251 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-08 14:32:50,251 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-08 14:32:50,258 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-08 14:32:50,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 02:32:50" (1/1) ... [2018-08-08 14:32:50,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37b5902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:32:50, skipping insertion in model container [2018-08-08 14:32:50,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 02:32:50" (1/1) ... [2018-08-08 14:32:50,495 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-08 14:32:51,010 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 14:32:51,028 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-08 14:32:51,299 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 14:32:51,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:32:51 WrapperNode [2018-08-08 14:32:51,393 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-08 14:32:51,394 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-08 14:32:51,394 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-08 14:32:51,394 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-08 14:32:51,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:32:51" (1/1) ... [2018-08-08 14:32:51,469 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:32:51" (1/1) ... [2018-08-08 14:32:51,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-08 14:32:51,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-08 14:32:51,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-08 14:32:51,620 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-08 14:32:51,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:32:51" (1/1) ... [2018-08-08 14:32:51,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:32:51" (1/1) ... [2018-08-08 14:32:51,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:32:51" (1/1) ... [2018-08-08 14:32:51,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:32:51" (1/1) ... [2018-08-08 14:32:52,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:32:51" (1/1) ... [2018-08-08 14:32:52,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:32:51" (1/1) ... [2018-08-08 14:32:52,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:32:51" (1/1) ... [2018-08-08 14:32:52,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-08 14:32:52,069 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-08 14:32:52,069 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-08 14:32:52,070 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-08 14:32:52,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:32:51" (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 [2018-08-08 14:32:52,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-08 14:32:52,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-08 14:32:52,147 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 [2018-08-08 14:32:52,147 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 [2018-08-08 14:32:52,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-08 14:32:52,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-08 14:32:52,148 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-08 14:32:52,148 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-08 14:32:52,148 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 [2018-08-08 14:32:52,148 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 [2018-08-08 14:32:59,609 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-08 14:32:59,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 02:32:59 BoogieIcfgContainer [2018-08-08 14:32:59,610 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-08 14:32:59,611 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-08 14:32:59,611 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-08 14:32:59,615 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-08 14:32:59,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.08 02:32:50" (1/3) ... [2018-08-08 14:32:59,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d877246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 02:32:59, skipping insertion in model container [2018-08-08 14:32:59,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:32:51" (2/3) ... [2018-08-08 14:32:59,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d877246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 02:32:59, skipping insertion in model container [2018-08-08 14:32:59,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 02:32:59" (3/3) ... [2018-08-08 14:32:59,619 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label50_true-unreach-call.c [2018-08-08 14:32:59,630 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-08 14:32:59,639 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-08 14:32:59,697 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-08 14:32:59,698 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-08 14:32:59,698 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-08 14:32:59,699 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-08 14:32:59,699 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-08 14:32:59,699 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-08 14:32:59,699 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-08 14:32:59,699 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-08 14:32:59,699 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-08 14:32:59,732 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-08-08 14:32:59,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-08-08 14:32:59,742 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 14:32:59,743 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] [2018-08-08 14:32:59,744 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]=== [2018-08-08 14:32:59,750 INFO L82 PathProgramCache]: Analyzing trace with hash -236557956, now seen corresponding path program 1 times [2018-08-08 14:32:59,753 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 14:32:59,754 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 53 with the following transitions: [2018-08-08 14:32:59,757 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], [317], [319], [1378], [1382], [1388], [1392], [1579], [1580], [1581], [1583] [2018-08-08 14:32:59,823 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 14:32:59,823 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 14:33:01,599 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 14:33:01,601 INFO L272 AbstractInterpreter]: Visited 51 different actions 51 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-08-08 14:33:01,655 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 14:33:02,671 INFO L232 lantSequenceWeakener]: Weakened 50 states. On average, predicates are now at 80.51% of their original sizes. [2018-08-08 14:33:02,673 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 14:33:02,993 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 14:33:02,995 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 14:33:02,995 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-08-08 14:33:02,995 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 14:33:03,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-08-08 14:33:03,008 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-08-08 14:33:03,008 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-08-08 14:33:03,011 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 6 states. [2018-08-08 14:33:17,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 14:33:17,186 INFO L93 Difference]: Finished difference Result 1158 states and 2145 transitions. [2018-08-08 14:33:17,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-08-08 14:33:17,191 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2018-08-08 14:33:17,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 14:33:17,216 INFO L225 Difference]: With dead ends: 1158 [2018-08-08 14:33:17,216 INFO L226 Difference]: Without dead ends: 746 [2018-08-08 14:33:17,225 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 51 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-08-08 14:33:17,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2018-08-08 14:33:17,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 744. [2018-08-08 14:33:17,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-08-08 14:33:17,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1075 transitions. [2018-08-08 14:33:17,331 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1075 transitions. Word has length 52 [2018-08-08 14:33:17,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 14:33:17,332 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1075 transitions. [2018-08-08 14:33:17,332 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-08-08 14:33:17,332 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1075 transitions. [2018-08-08 14:33:17,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-08-08 14:33:17,344 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 14:33:17,344 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 14:33:17,345 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]=== [2018-08-08 14:33:17,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1413468414, now seen corresponding path program 1 times [2018-08-08 14:33:17,346 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 14:33:17,346 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 145 with the following transitions: [2018-08-08 14:33:17,347 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], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [582], [1374], [1378], [1382], [1388], [1392], [1394], [1579], [1580], [1581], [1583], [1584] [2018-08-08 14:33:17,359 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 14:33:17,359 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 14:33:21,984 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 14:33:31,719 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 14:33:31,719 INFO L272 AbstractInterpreter]: Visited 99 different actions 284 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-08-08 14:33:31,730 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 14:33:34,141 INFO L232 lantSequenceWeakener]: Weakened 142 states. On average, predicates are now at 78.48% of their original sizes. [2018-08-08 14:33:34,141 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 14:33:36,293 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 14:33:36,293 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 14:33:36,294 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-08-08 14:33:36,294 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 14:33:36,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-08-08 14:33:36,296 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-08-08 14:33:36,296 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420 [2018-08-08 14:33:36,297 INFO L87 Difference]: Start difference. First operand 744 states and 1075 transitions. Second operand 21 states. [2018-08-08 14:34:14,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 14:34:14,790 INFO L93 Difference]: Finished difference Result 2191 states and 3869 transitions. [2018-08-08 14:34:14,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-08-08 14:34:14,792 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 144 [2018-08-08 14:34:14,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 14:34:14,802 INFO L225 Difference]: With dead ends: 2191 [2018-08-08 14:34:14,802 INFO L226 Difference]: Without dead ends: 1791 [2018-08-08 14:34:14,805 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 157 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=321, Invalid=869, Unknown=0, NotChecked=0, Total=1190 [2018-08-08 14:34:14,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1791 states. [2018-08-08 14:34:14,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1791 to 1090. [2018-08-08 14:34:14,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1090 states. [2018-08-08 14:34:14,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 1433 transitions. [2018-08-08 14:34:14,858 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 1433 transitions. Word has length 144 [2018-08-08 14:34:14,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 14:34:14,859 INFO L480 AbstractCegarLoop]: Abstraction has 1090 states and 1433 transitions. [2018-08-08 14:34:14,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-08-08 14:34:14,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 1433 transitions. [2018-08-08 14:34:14,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-08-08 14:34:14,864 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 14:34:14,864 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 14:34:14,865 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 14:34:14,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1015651978, now seen corresponding path program 1 times [2018-08-08 14:34:14,865 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 14:34:14,865 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 181 with the following transitions: [2018-08-08 14:34:14,866 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], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [726], [1374], [1378], [1382], [1388], [1392], [1394], [1579], [1580], [1581], [1583], [1584] [2018-08-08 14:34:14,871 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 14:34:14,872 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 14:34:20,899 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 14:34:34,106 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 14:34:34,107 INFO L272 AbstractInterpreter]: Visited 135 different actions 392 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-08-08 14:34:34,141 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 14:34:36,886 INFO L232 lantSequenceWeakener]: Weakened 178 states. On average, predicates are now at 78.23% of their original sizes. [2018-08-08 14:34:36,887 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 14:34:38,785 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 14:34:38,786 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 14:34:38,786 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2018-08-08 14:34:38,786 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 14:34:38,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-08-08 14:34:38,788 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-08-08 14:34:38,788 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=321, Unknown=0, NotChecked=0, Total=462 [2018-08-08 14:34:38,789 INFO L87 Difference]: Start difference. First operand 1090 states and 1433 transitions. Second operand 22 states. [2018-08-08 14:35:14,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 14:35:14,881 INFO L93 Difference]: Finished difference Result 3579 states and 5312 transitions. [2018-08-08 14:35:14,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-08-08 14:35:14,883 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 180 [2018-08-08 14:35:14,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 14:35:14,897 INFO L225 Difference]: With dead ends: 3579 [2018-08-08 14:35:14,897 INFO L226 Difference]: Without dead ends: 2833 [2018-08-08 14:35:14,900 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 194 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=369, Invalid=963, Unknown=0, NotChecked=0, Total=1332 [2018-08-08 14:35:14,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2833 states. [2018-08-08 14:35:14,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2833 to 1438. [2018-08-08 14:35:14,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1438 states. [2018-08-08 14:35:14,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 1794 transitions. [2018-08-08 14:35:14,971 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 1794 transitions. Word has length 180 [2018-08-08 14:35:14,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 14:35:14,972 INFO L480 AbstractCegarLoop]: Abstraction has 1438 states and 1794 transitions. [2018-08-08 14:35:14,972 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-08-08 14:35:14,972 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 1794 transitions. [2018-08-08 14:35:14,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2018-08-08 14:35:14,979 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 14:35:14,980 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 14:35:14,980 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 14:35:14,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1448604266, now seen corresponding path program 1 times [2018-08-08 14:35:14,980 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 14:35:14,981 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 293 with the following transitions: [2018-08-08 14:35:14,981 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], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [995], [999], [1003], [1007], [1011], [1015], [1019], [1023], [1027], [1031], [1035], [1039], [1043], [1047], [1051], [1055], [1059], [1063], [1067], [1071], [1075], [1079], [1083], [1087], [1091], [1095], [1099], [1103], [1107], [1111], [1115], [1119], [1123], [1127], [1131], [1135], [1139], [1143], [1147], [1151], [1155], [1159], [1163], [1167], [1171], [1174], [1374], [1378], [1382], [1388], [1392], [1394], [1579], [1580], [1581], [1583], [1584] [2018-08-08 14:35:14,990 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 14:35:14,990 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 14:35:43,369 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 14:35:43,370 INFO L272 AbstractInterpreter]: Visited 247 different actions 488 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-08-08 14:35:43,377 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 14:35:46,717 INFO L232 lantSequenceWeakener]: Weakened 290 states. On average, predicates are now at 77.86% of their original sizes. [2018-08-08 14:35:46,717 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 14:35:51,032 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 14:35:51,032 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 14:35:51,032 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-08-08 14:35:51,032 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 14:35:51,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-08-08 14:35:51,033 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-08-08 14:35:51,034 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2018-08-08 14:35:51,034 INFO L87 Difference]: Start difference. First operand 1438 states and 1794 transitions. Second operand 15 states. [2018-08-08 14:36:14,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 14:36:14,804 INFO L93 Difference]: Finished difference Result 2875 states and 3914 transitions. [2018-08-08 14:36:14,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-08-08 14:36:14,806 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 292 [2018-08-08 14:36:14,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 14:36:14,815 INFO L225 Difference]: With dead ends: 2875 [2018-08-08 14:36:14,815 INFO L226 Difference]: Without dead ends: 1781 [2018-08-08 14:36:14,819 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 305 GetRequests, 247 SyntacticMatches, 31 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=188, Invalid=624, Unknown=0, NotChecked=0, Total=812 [2018-08-08 14:36:14,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2018-08-08 14:36:14,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1778. [2018-08-08 14:36:14,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1778 states. [2018-08-08 14:36:14,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1778 states to 1778 states and 2151 transitions. [2018-08-08 14:36:14,882 INFO L78 Accepts]: Start accepts. Automaton has 1778 states and 2151 transitions. Word has length 292 [2018-08-08 14:36:14,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 14:36:14,883 INFO L480 AbstractCegarLoop]: Abstraction has 1778 states and 2151 transitions. [2018-08-08 14:36:14,883 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-08-08 14:36:14,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states and 2151 transitions. [2018-08-08 14:36:14,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2018-08-08 14:36:14,888 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 14:36:14,889 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 14:36:14,889 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 14:36:14,889 INFO L82 PathProgramCache]: Analyzing trace with hash -2010111226, now seen corresponding path program 1 times [2018-08-08 14:36:14,890 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 14:36:14,890 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 301 with the following transitions: [2018-08-08 14:36:14,890 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], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [995], [999], [1003], [1007], [1011], [1015], [1019], [1023], [1027], [1031], [1035], [1039], [1043], [1047], [1051], [1055], [1059], [1063], [1067], [1071], [1075], [1079], [1083], [1087], [1091], [1095], [1099], [1103], [1107], [1111], [1115], [1119], [1123], [1127], [1131], [1135], [1139], [1143], [1147], [1151], [1155], [1159], [1163], [1167], [1171], [1175], [1179], [1183], [1187], [1191], [1195], [1199], [1203], [1206], [1374], [1378], [1382], [1388], [1392], [1394], [1579], [1580], [1581], [1583], [1584] [2018-08-08 14:36:14,897 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 14:36:14,897 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 14:36:58,535 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 14:36:58,535 INFO L272 AbstractInterpreter]: Visited 255 different actions 752 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-08-08 14:36:58,540 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 14:37:01,495 INFO L232 lantSequenceWeakener]: Weakened 298 states. On average, predicates are now at 77.85% of their original sizes. [2018-08-08 14:37:01,495 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 14:37:08,508 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 14:37:08,509 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 14:37:08,509 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-08-08 14:37:08,509 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 14:37:08,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-08-08 14:37:08,510 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-08-08 14:37:08,510 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2018-08-08 14:37:08,510 INFO L87 Difference]: Start difference. First operand 1778 states and 2151 transitions. Second operand 15 states. Received shutdown request... [2018-08-08 14:37:12,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-08-08 14:37:12,197 WARN L549 AbstractCegarLoop]: Verification canceled [2018-08-08 14:37:12,204 WARN L202 ceAbstractionStarter]: Timeout [2018-08-08 14:37:12,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.08 02:37:12 BoogieIcfgContainer [2018-08-08 14:37:12,205 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-08-08 14:37:12,206 INFO L168 Benchmark]: Toolchain (without parser) took 261957.35 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-08-08 14:37:12,208 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-08-08 14:37:12,208 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1142.63 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. [2018-08-08 14:37:12,209 INFO L168 Benchmark]: Boogie Procedure Inliner took 225.38 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-08-08 14:37:12,210 INFO L168 Benchmark]: Boogie Preprocessor took 449.18 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 824.2 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -981.6 MB). Peak memory consumption was 61.1 MB. Max. memory is 7.1 GB. [2018-08-08 14:37:12,211 INFO L168 Benchmark]: RCFGBuilder took 7541.05 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 302.6 MB). Peak memory consumption was 302.6 MB. Max. memory is 7.1 GB. [2018-08-08 14:37:12,212 INFO L168 Benchmark]: TraceAbstraction took 252593.81 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 2.5 GB in the end (delta: -548.9 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-08-08 14:37:12,217 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1142.63 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 225.38 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 449.18 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 824.2 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -981.6 MB). Peak memory consumption was 61.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7541.05 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 302.6 MB). Peak memory consumption was 302.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 252593.81 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 2.5 GB in the end (delta: -548.9 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 142]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 142). Cancelled while BasicCegarLoop was constructing difference of abstraction (1778states) and FLOYD_HOARE automaton (currently 8 states, 15 states before enhancement), while ReachableStatesComputation was computing reachable states (159 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 252.5s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 116.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1633 SDtfs, 15046 SDslu, 1832 SDs, 0 SdLazy, 20601 SolverSat, 3197 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 106.5s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 1011 GetRequests, 816 SyntacticMatches, 78 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 885 ImplicationChecksByTransitivity, 18.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1778occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 107.6s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.995460496882683 AbsIntWeakeningRatio, 0.0976116303219107 AbsIntAvgWeakeningVarsNumRemoved, 30.260643821391486 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 2101 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label50_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-08-08_14-37-12-230.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label50_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-08-08_14-37-12-230.csv Completed graceful shutdown