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_label12_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 20:23:41,328 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 20:23:41,331 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 20:23:41,345 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 20:23:41,345 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 20:23:41,347 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 20:23:41,348 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 20:23:41,350 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 20:23:41,353 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 20:23:41,354 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 20:23:41,355 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 20:23:41,356 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 20:23:41,357 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 20:23:41,358 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 20:23:41,359 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 20:23:41,359 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 20:23:41,360 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 20:23:41,362 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 20:23:41,364 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 20:23:41,366 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 20:23:41,367 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 20:23:41,368 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 20:23:41,372 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 20:23:41,373 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 20:23:41,373 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 20:23:41,374 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 20:23:41,375 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 20:23:41,376 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 20:23:41,377 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 20:23:41,378 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 20:23:41,378 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 20:23:41,379 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 20:23:41,379 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 20:23:41,379 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 20:23:41,380 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 20:23:41,381 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 20:23:41,381 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 [2018-09-15 20:23:41,411 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 20:23:41,412 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 20:23:41,413 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 20:23:41,413 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 20:23:41,413 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 20:23:41,413 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 20:23:41,413 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 20:23:41,413 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 20:23:41,414 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-15 20:23:41,414 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 20:23:41,414 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 20:23:41,414 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 20:23:41,415 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 20:23:41,415 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 20:23:41,415 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 20:23:41,415 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 20:23:41,416 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 20:23:41,416 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 20:23:41,416 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 20:23:41,416 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 20:23:41,416 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 20:23:41,417 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 20:23:41,417 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 20:23:41,417 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 20:23:41,417 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 20:23:41,417 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 20:23:41,418 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 20:23:41,418 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 20:23:41,418 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 20:23:41,418 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 20:23:41,418 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 20:23:41,418 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 20:23:41,419 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 20:23:41,419 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 20:23:41,463 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 20:23:41,477 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 20:23:41,486 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 20:23:41,487 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 20:23:41,488 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 20:23:41,489 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label12_true-unreach-call.c [2018-09-15 20:23:41,825 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a798f6113/2e2baf54e32c4a2fb06724f3c6bbbf66/FLAGa9dc6fe80 [2018-09-15 20:23:42,198 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 20:23:42,199 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label12_true-unreach-call.c [2018-09-15 20:23:42,227 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a798f6113/2e2baf54e32c4a2fb06724f3c6bbbf66/FLAGa9dc6fe80 [2018-09-15 20:23:42,251 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a798f6113/2e2baf54e32c4a2fb06724f3c6bbbf66 [2018-09-15 20:23:42,261 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 20:23:42,264 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 20:23:42,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 20:23:42,265 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 20:23:42,272 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 20:23:42,273 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:23:42" (1/1) ... [2018-09-15 20:23:42,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38dc6aa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:23:42, skipping insertion in model container [2018-09-15 20:23:42,276 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:23:42" (1/1) ... [2018-09-15 20:23:42,289 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 20:23:43,116 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 20:23:43,136 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 20:23:43,353 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 20:23:43,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:23:43 WrapperNode [2018-09-15 20:23:43,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 20:23:43,447 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 20:23:43,448 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 20:23:43,448 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 20:23:43,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:23:43" (1/1) ... [2018-09-15 20:23:43,531 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:23:43" (1/1) ... [2018-09-15 20:23:43,657 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 20:23:43,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 20:23:43,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 20:23:43,658 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 20:23:43,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:23:43" (1/1) ... [2018-09-15 20:23:43,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:23:43" (1/1) ... [2018-09-15 20:23:43,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:23:43" (1/1) ... [2018-09-15 20:23:43,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:23:43" (1/1) ... [2018-09-15 20:23:44,050 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:23:43" (1/1) ... [2018-09-15 20:23:44,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:23:43" (1/1) ... [2018-09-15 20:23:44,124 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:23:43" (1/1) ... [2018-09-15 20:23:44,158 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 20:23:44,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 20:23:44,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 20:23:44,160 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 20:23:44,161 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:23:43" (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 [2018-09-15 20:23:44,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 20:23:44,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 20:23:44,237 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 20:23:44,237 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 20:23:44,238 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 20:23:44,238 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 20:23:44,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 20:23:44,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 20:23:44,238 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 20:23:44,238 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 20:23:51,664 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 20:23:51,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:23:51 BoogieIcfgContainer [2018-09-15 20:23:51,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 20:23:51,666 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 20:23:51,666 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 20:23:51,670 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 20:23:51,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 08:23:42" (1/3) ... [2018-09-15 20:23:51,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36913653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 08:23:51, skipping insertion in model container [2018-09-15 20:23:51,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:23:43" (2/3) ... [2018-09-15 20:23:51,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36913653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 08:23:51, skipping insertion in model container [2018-09-15 20:23:51,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:23:51" (3/3) ... [2018-09-15 20:23:51,674 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label12_true-unreach-call.c [2018-09-15 20:23:51,685 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 20:23:51,694 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 20:23:51,760 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 20:23:51,761 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 20:23:51,761 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 20:23:51,762 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 20:23:51,762 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 20:23:51,762 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 20:23:51,762 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 20:23:51,762 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 20:23:51,762 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 20:23:51,795 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-09-15 20:23:51,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-15 20:23:51,805 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 20:23:51,806 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] [2018-09-15 20:23:51,807 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 20:23:51,813 INFO L82 PathProgramCache]: Analyzing trace with hash 806508676, now seen corresponding path program 1 times [2018-09-15 20:23:51,816 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 20:23:51,817 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 47 with the following transitions: [2018-09-15 20:23:51,821 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [447], [449], [1556], [1560], [1566], [1570], [1579], [1580], [1581], [1583] [2018-09-15 20:23:51,888 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 20:23:51,889 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 20:23:53,730 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 20:23:53,732 INFO L272 AbstractInterpreter]: Visited 45 different actions 45 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 20:23:53,748 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 20:23:54,610 INFO L232 lantSequenceWeakener]: Weakened 44 states. On average, predicates are now at 80.33% of their original sizes. [2018-09-15 20:23:54,610 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 20:23:54,978 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 20:23:54,980 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 20:23:54,980 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 20:23:54,980 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 20:23:54,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 20:23:54,996 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 20:23:54,997 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 20:23:54,999 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 6 states. [2018-09-15 20:24:04,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 20:24:04,824 INFO L93 Difference]: Finished difference Result 1158 states and 2145 transitions. [2018-09-15 20:24:04,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 20:24:04,828 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2018-09-15 20:24:04,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 20:24:04,851 INFO L225 Difference]: With dead ends: 1158 [2018-09-15 20:24:04,851 INFO L226 Difference]: Without dead ends: 746 [2018-09-15 20:24:04,860 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 45 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 20:24:04,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2018-09-15 20:24:04,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 744. [2018-09-15 20:24:04,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-09-15 20:24:04,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1075 transitions. [2018-09-15 20:24:04,963 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1075 transitions. Word has length 46 [2018-09-15 20:24:04,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 20:24:04,964 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1075 transitions. [2018-09-15 20:24:04,964 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 20:24:04,964 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1075 transitions. [2018-09-15 20:24:04,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-09-15 20:24:04,971 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 20:24:04,972 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 20:24:04,972 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 20:24:04,973 INFO L82 PathProgramCache]: Analyzing trace with hash -392093146, now seen corresponding path program 1 times [2018-09-15 20:24:04,973 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 20:24:04,973 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 139 with the following transitions: [2018-09-15 20:24:04,974 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [447], [449], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 20:24:04,980 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 20:24:04,980 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 20:24:10,466 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 20:24:20,647 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 20:24:20,647 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. [2018-09-15 20:24:20,653 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 20:24:22,844 INFO L232 lantSequenceWeakener]: Weakened 136 states. On average, predicates are now at 78.33% of their original sizes. [2018-09-15 20:24:22,845 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 20:24:24,602 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 20:24:24,603 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 20:24:24,603 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2018-09-15 20:24:24,603 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 20:24:24,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-09-15 20:24:24,605 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-09-15 20:24:24,605 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2018-09-15 20:24:24,606 INFO L87 Difference]: Start difference. First operand 744 states and 1075 transitions. Second operand 19 states. [2018-09-15 20:24:59,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 20:24:59,911 INFO L93 Difference]: Finished difference Result 2680 states and 4847 transitions. [2018-09-15 20:24:59,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-15 20:24:59,913 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 138 [2018-09-15 20:24:59,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 20:24:59,927 INFO L225 Difference]: With dead ends: 2680 [2018-09-15 20:24:59,927 INFO L226 Difference]: Without dead ends: 2280 [2018-09-15 20:24:59,932 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 153 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=301, Invalid=889, Unknown=0, NotChecked=0, Total=1190 [2018-09-15 20:24:59,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2280 states. [2018-09-15 20:24:59,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2280 to 1092. [2018-09-15 20:24:59,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1092 states. [2018-09-15 20:24:59,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1092 states to 1092 states and 1437 transitions. [2018-09-15 20:24:59,999 INFO L78 Accepts]: Start accepts. Automaton has 1092 states and 1437 transitions. Word has length 138 [2018-09-15 20:25:00,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 20:25:00,000 INFO L480 AbstractCegarLoop]: Abstraction has 1092 states and 1437 transitions. [2018-09-15 20:25:00,000 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-09-15 20:25:00,000 INFO L276 IsEmpty]: Start isEmpty. Operand 1092 states and 1437 transitions. [2018-09-15 20:25:00,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-09-15 20:25:00,012 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 20:25:00,013 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 20:25:00,013 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 20:25:00,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1736803042, now seen corresponding path program 1 times [2018-09-15 20:25:00,014 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 20:25:00,014 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 175 with the following transitions: [2018-09-15 20:25:00,015 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [447], [449], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 20:25:00,024 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 20:25:00,024 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 20:25:05,321 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 20:25:19,451 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 20:25:19,452 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. [2018-09-15 20:25:19,470 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 20:25:22,061 INFO L232 lantSequenceWeakener]: Weakened 172 states. On average, predicates are now at 78.11% of their original sizes. [2018-09-15 20:25:22,061 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 20:25:23,331 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 20:25:23,332 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 20:25:23,332 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2018-09-15 20:25:23,332 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 20:25:23,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-09-15 20:25:23,333 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-09-15 20:25:23,333 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2018-09-15 20:25:23,334 INFO L87 Difference]: Start difference. First operand 1092 states and 1437 transitions. Second operand 20 states. [2018-09-15 20:26:00,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 20:26:00,776 INFO L93 Difference]: Finished difference Result 4559 states and 6808 transitions. [2018-09-15 20:26:00,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-15 20:26:00,779 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 174 [2018-09-15 20:26:00,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 20:26:00,800 INFO L225 Difference]: With dead ends: 4559 [2018-09-15 20:26:00,800 INFO L226 Difference]: Without dead ends: 3811 [2018-09-15 20:26:00,804 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 190 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=349, Invalid=983, Unknown=0, NotChecked=0, Total=1332 [2018-09-15 20:26:00,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3811 states. [2018-09-15 20:26:00,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3811 to 1442. [2018-09-15 20:26:00,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1442 states. [2018-09-15 20:26:00,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1442 states to 1442 states and 1802 transitions. [2018-09-15 20:26:00,884 INFO L78 Accepts]: Start accepts. Automaton has 1442 states and 1802 transitions. Word has length 174 [2018-09-15 20:26:00,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 20:26:00,885 INFO L480 AbstractCegarLoop]: Abstraction has 1442 states and 1802 transitions. [2018-09-15 20:26:00,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-09-15 20:26:00,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1442 states and 1802 transitions. [2018-09-15 20:26:00,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2018-09-15 20:26:00,898 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 20:26:00,899 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 20:26:00,899 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 20:26:00,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1792614206, now seen corresponding path program 1 times [2018-09-15 20:26:00,899 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 20:26:00,900 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 287 with the following transitions: [2018-09-15 20:26:00,900 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [447], [449], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 20:26:00,911 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 20:26:00,911 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 20:26:34,175 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 20:26:34,175 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. [2018-09-15 20:26:34,185 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 20:26:37,208 INFO L232 lantSequenceWeakener]: Weakened 284 states. On average, predicates are now at 77.78% of their original sizes. [2018-09-15 20:26:37,208 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 20:26:40,856 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 20:26:40,856 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 20:26:40,856 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-15 20:26:40,857 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 20:26:40,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-15 20:26:40,858 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-15 20:26:40,858 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2018-09-15 20:26:40,858 INFO L87 Difference]: Start difference. First operand 1442 states and 1802 transitions. Second operand 15 states. [2018-09-15 20:26:58,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 20:26:58,361 INFO L93 Difference]: Finished difference Result 2883 states and 3930 transitions. [2018-09-15 20:26:58,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-15 20:26:58,371 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 286 [2018-09-15 20:26:58,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 20:26:58,380 INFO L225 Difference]: With dead ends: 2883 [2018-09-15 20:26:58,380 INFO L226 Difference]: Without dead ends: 1785 [2018-09-15 20:26:58,384 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 299 GetRequests, 241 SyntacticMatches, 31 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=188, Invalid=624, Unknown=0, NotChecked=0, Total=812 [2018-09-15 20:26:58,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1785 states. [2018-09-15 20:26:58,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1785 to 1782. [2018-09-15 20:26:58,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1782 states. [2018-09-15 20:26:58,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1782 states to 1782 states and 2159 transitions. [2018-09-15 20:26:58,449 INFO L78 Accepts]: Start accepts. Automaton has 1782 states and 2159 transitions. Word has length 286 [2018-09-15 20:26:58,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 20:26:58,450 INFO L480 AbstractCegarLoop]: Abstraction has 1782 states and 2159 transitions. [2018-09-15 20:26:58,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-15 20:26:58,450 INFO L276 IsEmpty]: Start isEmpty. Operand 1782 states and 2159 transitions. [2018-09-15 20:26:58,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2018-09-15 20:26:58,456 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 20:26:58,456 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 20:26:58,456 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 20:26:58,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1290886738, now seen corresponding path program 1 times [2018-09-15 20:26:58,457 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 20:26:58,457 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 295 with the following transitions: [2018-09-15 20:26:58,458 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [447], [449], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 20:26:58,465 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 20:26:58,466 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 20:27:45,237 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 20:27:45,238 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. [2018-09-15 20:27:45,244 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 20:27:48,019 INFO L232 lantSequenceWeakener]: Weakened 292 states. On average, predicates are now at 77.76% of their original sizes. [2018-09-15 20:27:48,019 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 20:27:52,995 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 20:27:52,995 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 20:27:52,995 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-15 20:27:52,995 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 20:27:52,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-15 20:27:52,996 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-15 20:27:52,996 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2018-09-15 20:27:52,996 INFO L87 Difference]: Start difference. First operand 1782 states and 2159 transitions. Second operand 15 states. Received shutdown request... [2018-09-15 20:28:04,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-15 20:28:04,132 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-15 20:28:04,139 WARN L206 ceAbstractionStarter]: Timeout [2018-09-15 20:28:04,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 08:28:04 BoogieIcfgContainer [2018-09-15 20:28:04,140 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 20:28:04,141 INFO L168 Benchmark]: Toolchain (without parser) took 261879.03 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 2.2 GB in the end (delta: -763.8 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-09-15 20:28:04,143 INFO L168 Benchmark]: CDTParser took 0.24 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. [2018-09-15 20:28:04,143 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1181.62 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: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2018-09-15 20:28:04,144 INFO L168 Benchmark]: Boogie Procedure Inliner took 209.73 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-15 20:28:04,145 INFO L168 Benchmark]: Boogie Preprocessor took 501.55 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 810.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -959.5 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. [2018-09-15 20:28:04,146 INFO L168 Benchmark]: RCFGBuilder took 7506.30 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 265.5 MB). Peak memory consumption was 265.5 MB. Max. memory is 7.1 GB. [2018-09-15 20:28:04,146 INFO L168 Benchmark]: TraceAbstraction took 252473.63 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 2.2 GB in the end (delta: -196.6 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-09-15 20:28:04,151 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 1181.62 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: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 209.73 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 501.55 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 810.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -959.5 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7506.30 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 265.5 MB). Peak memory consumption was 265.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 252473.63 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 2.2 GB in the end (delta: -196.6 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 124]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 124). Cancelled while BasicCegarLoop was constructing difference of abstraction (1782states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement), while ReachableStatesComputation was computing reachable states (1018 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 252.3s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 111.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1649 SDtfs, 12380 SDslu, 1960 SDs, 0 SdLazy, 23833 SolverSat, 2306 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 100.8s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 990 GetRequests, 790 SyntacticMatches, 78 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 937 ImplicationChecksByTransitivity, 14.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1782occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 117.1s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9953145321522227 AbsIntWeakeningRatio, 0.1007502679528403 AbsIntAvgWeakeningVarsNumRemoved, 31.831725616291532 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 3562 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_label12_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_20-28-04-167.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label12_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_20-28-04-167.csv Completed graceful shutdown