java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label56_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 12:20:17,424 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 12:20:17,426 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 12:20:17,438 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 12:20:17,439 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 12:20:17,440 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 12:20:17,441 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 12:20:17,443 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 12:20:17,445 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 12:20:17,446 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 12:20:17,446 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 12:20:17,447 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 12:20:17,448 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 12:20:17,448 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 12:20:17,450 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 12:20:17,450 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 12:20:17,451 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 12:20:17,453 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 12:20:17,455 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 12:20:17,457 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 12:20:17,458 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 12:20:17,459 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 12:20:17,462 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 12:20:17,462 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 12:20:17,462 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 12:20:17,463 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 12:20:17,464 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 12:20:17,465 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 12:20:17,466 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 12:20:17,467 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 12:20:17,467 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 12:20:17,468 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 12:20:17,468 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 12:20:17,468 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 12:20:17,469 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 12:20:17,470 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 12:20:17,471 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-15 12:20:17,486 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 12:20:17,487 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 12:20:17,488 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 12:20:17,488 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 12:20:17,488 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 12:20:17,488 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 12:20:17,488 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 12:20:17,489 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 12:20:17,489 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 12:20:17,489 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 12:20:17,489 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 12:20:17,490 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 12:20:17,490 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 12:20:17,490 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 12:20:17,491 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 12:20:17,491 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 12:20:17,491 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 12:20:17,491 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 12:20:17,491 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 12:20:17,492 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 12:20:17,492 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 12:20:17,492 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 12:20:17,492 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 12:20:17,493 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 12:20:17,493 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 12:20:17,493 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 12:20:17,493 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 12:20:17,493 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 12:20:17,494 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 12:20:17,494 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 12:20:17,494 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 12:20:17,494 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 12:20:17,494 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 12:20:17,537 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 12:20:17,551 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 12:20:17,556 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 12:20:17,558 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 12:20:17,559 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 12:20:17,560 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label56_true-unreach-call.c [2018-09-15 12:20:17,915 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90ce85ffc/e3e4d75f71ed4d6989f1716aeb585a42/FLAG79a7a276f [2018-09-15 12:20:18,330 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 12:20:18,332 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label56_true-unreach-call.c [2018-09-15 12:20:18,354 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90ce85ffc/e3e4d75f71ed4d6989f1716aeb585a42/FLAG79a7a276f [2018-09-15 12:20:18,376 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90ce85ffc/e3e4d75f71ed4d6989f1716aeb585a42 [2018-09-15 12:20:18,390 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 12:20:18,397 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 12:20:18,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 12:20:18,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 12:20:18,408 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 12:20:18,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:20:18" (1/1) ... [2018-09-15 12:20:18,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77eb0580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:20:18, skipping insertion in model container [2018-09-15 12:20:18,412 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:20:18" (1/1) ... [2018-09-15 12:20:18,425 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 12:20:19,208 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:20:19,230 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 12:20:19,494 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:20:19,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:20:19 WrapperNode [2018-09-15 12:20:19,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 12:20:19,649 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 12:20:19,649 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 12:20:19,649 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 12:20:19,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:20:19" (1/1) ... [2018-09-15 12:20:19,733 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:20:19" (1/1) ... [2018-09-15 12:20:19,882 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 12:20:19,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 12:20:19,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 12:20:19,883 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 12:20:20,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:20:19" (1/1) ... [2018-09-15 12:20:20,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:20:19" (1/1) ... [2018-09-15 12:20:20,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:20:19" (1/1) ... [2018-09-15 12:20:20,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:20:19" (1/1) ... [2018-09-15 12:20:20,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:20:19" (1/1) ... [2018-09-15 12:20:20,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:20:19" (1/1) ... [2018-09-15 12:20:20,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:20:19" (1/1) ... [2018-09-15 12:20:20,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 12:20:20,517 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 12:20:20,517 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 12:20:20,517 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 12:20:20,518 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:20:19" (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 12:20:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 12:20:20,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 12:20:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 12:20:20,586 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 12:20:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 12:20:20,586 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 12:20:20,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 12:20:20,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 12:20:20,587 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 12:20:20,587 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 12:20:29,102 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 12:20:29,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:20:29 BoogieIcfgContainer [2018-09-15 12:20:29,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 12:20:29,104 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 12:20:29,104 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 12:20:29,107 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 12:20:29,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 12:20:18" (1/3) ... [2018-09-15 12:20:29,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3016ad60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:20:29, skipping insertion in model container [2018-09-15 12:20:29,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:20:19" (2/3) ... [2018-09-15 12:20:29,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3016ad60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:20:29, skipping insertion in model container [2018-09-15 12:20:29,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:20:29" (3/3) ... [2018-09-15 12:20:29,114 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label56_true-unreach-call.c [2018-09-15 12:20:29,124 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 12:20:29,136 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 12:20:29,206 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 12:20:29,207 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 12:20:29,207 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 12:20:29,207 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 12:20:29,208 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 12:20:29,208 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 12:20:29,208 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 12:20:29,208 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 12:20:29,208 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 12:20:29,242 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-09-15 12:20:29,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-15 12:20:29,251 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:20:29,252 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] [2018-09-15 12:20:29,253 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:20:29,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1936473164, now seen corresponding path program 1 times [2018-09-15 12:20:29,260 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:20:29,261 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 41 with the following transitions: [2018-09-15 12:20:29,264 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [293], [295], [1639], [1643], [1649], [1653], [1662], [1663], [1664], [1666] [2018-09-15 12:20:29,323 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:20:29,323 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:20:30,378 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:20:30,379 INFO L272 AbstractInterpreter]: Visited 39 different actions 39 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 12:20:30,401 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:20:31,016 INFO L232 lantSequenceWeakener]: Weakened 38 states. On average, predicates are now at 80.09% of their original sizes. [2018-09-15 12:20:31,016 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:20:31,292 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:20:31,294 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:20:31,294 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 12:20:31,294 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:20:31,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 12:20:31,307 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 12:20:31,308 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 12:20:31,310 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 6 states. [2018-09-15 12:20:48,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:20:48,144 INFO L93 Difference]: Finished difference Result 1184 states and 2139 transitions. [2018-09-15 12:20:48,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 12:20:48,146 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2018-09-15 12:20:48,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:20:48,166 INFO L225 Difference]: With dead ends: 1184 [2018-09-15 12:20:48,166 INFO L226 Difference]: Without dead ends: 744 [2018-09-15 12:20:48,177 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 12:20:48,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-09-15 12:20:48,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 742. [2018-09-15 12:20:48,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2018-09-15 12:20:48,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1072 transitions. [2018-09-15 12:20:48,292 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1072 transitions. Word has length 40 [2018-09-15 12:20:48,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:20:48,293 INFO L480 AbstractCegarLoop]: Abstraction has 742 states and 1072 transitions. [2018-09-15 12:20:48,293 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 12:20:48,295 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1072 transitions. [2018-09-15 12:20:48,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-09-15 12:20:48,306 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:20:48,307 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:20:48,307 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:20:48,308 INFO L82 PathProgramCache]: Analyzing trace with hash 541541557, now seen corresponding path program 1 times [2018-09-15 12:20:48,308 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:20:48,308 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2018-09-15 12:20:48,310 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [293], [295], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-15 12:20:48,320 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:20:48,322 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:20:51,244 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:21:01,586 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:21:01,586 INFO L272 AbstractInterpreter]: Visited 103 different actions 393 times. Merged at 5 different actions 14 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:21:01,600 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:21:03,108 INFO L232 lantSequenceWeakener]: Weakened 134 states. On average, predicates are now at 78.17% of their original sizes. [2018-09-15 12:21:03,108 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:21:04,646 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:21:04,646 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:21:04,647 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 12:21:04,647 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:21:04,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 12:21:04,649 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 12:21:04,649 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-15 12:21:04,650 INFO L87 Difference]: Start difference. First operand 742 states and 1072 transitions. Second operand 11 states. [2018-09-15 12:21:20,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:21:20,810 INFO L93 Difference]: Finished difference Result 1771 states and 3006 transitions. [2018-09-15 12:21:20,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 12:21:20,812 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 136 [2018-09-15 12:21:20,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:21:20,820 INFO L225 Difference]: With dead ends: 1771 [2018-09-15 12:21:20,821 INFO L226 Difference]: Without dead ends: 1343 [2018-09-15 12:21:20,824 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 143 GetRequests, 98 SyntacticMatches, 28 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2018-09-15 12:21:20,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2018-09-15 12:21:20,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 1056. [2018-09-15 12:21:20,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2018-09-15 12:21:20,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1400 transitions. [2018-09-15 12:21:20,881 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1400 transitions. Word has length 136 [2018-09-15 12:21:20,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:21:20,882 INFO L480 AbstractCegarLoop]: Abstraction has 1056 states and 1400 transitions. [2018-09-15 12:21:20,882 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 12:21:20,882 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1400 transitions. [2018-09-15 12:21:20,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2018-09-15 12:21:20,890 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:21:20,891 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:21:20,891 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:21:20,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1363534472, now seen corresponding path program 1 times [2018-09-15 12:21:20,892 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:21:20,892 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 279 with the following transitions: [2018-09-15 12:21:20,893 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [293], [295], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1378], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-15 12:21:20,905 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:21:20,906 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:21:27,269 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:21:39,169 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:21:39,170 INFO L272 AbstractInterpreter]: Visited 245 different actions 722 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 12:21:39,185 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:21:41,564 INFO L232 lantSequenceWeakener]: Weakened 276 states. On average, predicates are now at 77.71% of their original sizes. [2018-09-15 12:21:41,565 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:21:42,593 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:21:42,594 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:21:42,594 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 12:21:42,594 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:21:42,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 12:21:42,596 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 12:21:42,596 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-15 12:21:42,597 INFO L87 Difference]: Start difference. First operand 1056 states and 1400 transitions. Second operand 12 states. [2018-09-15 12:21:58,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:21:58,165 INFO L93 Difference]: Finished difference Result 2106 states and 3372 transitions. [2018-09-15 12:21:58,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 12:21:58,167 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 278 [2018-09-15 12:21:58,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:21:58,183 INFO L225 Difference]: With dead ends: 2106 [2018-09-15 12:21:58,183 INFO L226 Difference]: Without dead ends: 1678 [2018-09-15 12:21:58,186 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 285 GetRequests, 239 SyntacticMatches, 28 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-15 12:21:58,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1678 states. [2018-09-15 12:21:58,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1678 to 1675. [2018-09-15 12:21:58,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1675 states. [2018-09-15 12:21:58,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1675 states to 1675 states and 2037 transitions. [2018-09-15 12:21:58,259 INFO L78 Accepts]: Start accepts. Automaton has 1675 states and 2037 transitions. Word has length 278 [2018-09-15 12:21:58,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:21:58,261 INFO L480 AbstractCegarLoop]: Abstraction has 1675 states and 2037 transitions. [2018-09-15 12:21:58,261 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 12:21:58,261 INFO L276 IsEmpty]: Start isEmpty. Operand 1675 states and 2037 transitions. [2018-09-15 12:21:58,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2018-09-15 12:21:58,268 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:21:58,269 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:21:58,269 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:21:58,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1917368151, now seen corresponding path program 1 times [2018-09-15 12:21:58,270 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:21:58,270 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 280 with the following transitions: [2018-09-15 12:21:58,272 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [293], [295], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1382], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-15 12:21:58,290 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:21:58,290 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:22:04,123 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:22:27,571 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:22:27,571 INFO L272 AbstractInterpreter]: Visited 246 different actions 965 times. Merged at 5 different actions 14 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:22:27,578 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:22:29,679 INFO L232 lantSequenceWeakener]: Weakened 277 states. On average, predicates are now at 77.71% of their original sizes. [2018-09-15 12:22:29,679 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:22:33,686 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:22:33,687 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:22:33,687 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-15 12:22:33,687 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:22:33,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-15 12:22:33,688 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-15 12:22:33,688 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-15 12:22:33,689 INFO L87 Difference]: Start difference. First operand 1675 states and 2037 transitions. Second operand 14 states. [2018-09-15 12:23:07,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:23:07,350 INFO L93 Difference]: Finished difference Result 3138 states and 4842 transitions. [2018-09-15 12:23:07,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-15 12:23:07,351 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 279 [2018-09-15 12:23:07,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:23:07,363 INFO L225 Difference]: With dead ends: 3138 [2018-09-15 12:23:07,364 INFO L226 Difference]: Without dead ends: 2710 [2018-09-15 12:23:07,366 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 291 GetRequests, 238 SyntacticMatches, 28 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2018-09-15 12:23:07,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2710 states. [2018-09-15 12:23:07,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2710 to 2023. [2018-09-15 12:23:07,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2023 states. [2018-09-15 12:23:07,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2023 states to 2023 states and 2397 transitions. [2018-09-15 12:23:07,440 INFO L78 Accepts]: Start accepts. Automaton has 2023 states and 2397 transitions. Word has length 279 [2018-09-15 12:23:07,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:23:07,441 INFO L480 AbstractCegarLoop]: Abstraction has 2023 states and 2397 transitions. [2018-09-15 12:23:07,441 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-15 12:23:07,441 INFO L276 IsEmpty]: Start isEmpty. Operand 2023 states and 2397 transitions. [2018-09-15 12:23:07,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2018-09-15 12:23:07,446 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:23:07,447 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:23:07,447 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:23:07,447 INFO L82 PathProgramCache]: Analyzing trace with hash -280117030, now seen corresponding path program 1 times [2018-09-15 12:23:07,448 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:23:07,448 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 316 with the following transitions: [2018-09-15 12:23:07,448 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [293], [295], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-15 12:23:07,455 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:23:07,456 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:23:13,963 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:23:39,924 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:23:39,925 INFO L272 AbstractInterpreter]: Visited 282 different actions 558 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 12:23:39,934 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:23:47,220 INFO L232 lantSequenceWeakener]: Weakened 313 states. On average, predicates are now at 77.66% of their original sizes. [2018-09-15 12:23:47,220 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:23:52,815 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:23:52,816 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:23:52,816 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-15 12:23:52,816 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:23:52,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-15 12:23:52,817 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-15 12:23:52,817 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2018-09-15 12:23:52,818 INFO L87 Difference]: Start difference. First operand 2023 states and 2397 transitions. Second operand 18 states. Received shutdown request... [2018-09-15 12:24:01,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-15 12:24:01,855 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-15 12:24:01,862 WARN L206 ceAbstractionStarter]: Timeout [2018-09-15 12:24:01,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 12:24:01 BoogieIcfgContainer [2018-09-15 12:24:01,863 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 12:24:01,864 INFO L168 Benchmark]: Toolchain (without parser) took 223473.64 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.8 GB). Free memory was 1.4 GB in the beginning and 3.2 GB in the end (delta: -1.7 GB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-09-15 12:24:01,866 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 12:24:01,867 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1250.37 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: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. [2018-09-15 12:24:01,868 INFO L168 Benchmark]: Boogie Procedure Inliner took 233.19 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-15 12:24:01,869 INFO L168 Benchmark]: Boogie Preprocessor took 634.46 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 909.6 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. [2018-09-15 12:24:01,871 INFO L168 Benchmark]: RCFGBuilder took 8585.76 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 298.9 MB). Peak memory consumption was 298.9 MB. Max. memory is 7.1 GB. [2018-09-15 12:24:01,872 INFO L168 Benchmark]: TraceAbstraction took 212759.80 ms. Allocated memory was 2.5 GB in the beginning and 4.3 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 3.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 702.2 MB. Max. memory is 7.1 GB. [2018-09-15 12:24:01,879 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1250.37 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: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 233.19 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 634.46 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 909.6 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8585.76 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 298.9 MB). Peak memory consumption was 298.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 212759.80 ms. Allocated memory was 2.5 GB in the beginning and 4.3 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 3.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 702.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 106]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 106). Cancelled while BasicCegarLoop was constructing difference of abstraction (2023states) and FLOYD_HOARE automaton (currently 7 states, 18 states before enhancement), while ReachableStatesComputation was computing reachable states (77 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 212.6s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 91.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1862 SDtfs, 8078 SDslu, 1085 SDs, 0 SdLazy, 13623 SolverSat, 2040 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 84.3s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 1076 GetRequests, 880 SyntacticMatches, 112 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1471 ImplicationChecksByTransitivity, 14.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2023occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 94.5s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9958086850412498 AbsIntWeakeningRatio, 0.09012464046021093 AbsIntAvgWeakeningVarsNumRemoved, 457.5790987535954 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 979 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/Problem15_label56_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_12-24-01-901.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label56_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_12-24-01-901.csv Completed graceful shutdown