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/Problem16_label47_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 12:28:32,464 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 12:28:32,466 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 12:28:32,483 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 12:28:32,483 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 12:28:32,484 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 12:28:32,485 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 12:28:32,487 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 12:28:32,488 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 12:28:32,489 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 12:28:32,490 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 12:28:32,492 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 12:28:32,494 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 12:28:32,494 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 12:28:32,499 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 12:28:32,500 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 12:28:32,500 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 12:28:32,505 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 12:28:32,509 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 12:28:32,510 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 12:28:32,511 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 12:28:32,512 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 12:28:32,514 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 12:28:32,514 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 12:28:32,515 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 12:28:32,515 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 12:28:32,516 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 12:28:32,517 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 12:28:32,518 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 12:28:32,519 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 12:28:32,519 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 12:28:32,519 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 12:28:32,520 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 12:28:32,520 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 12:28:32,521 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 12:28:32,521 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 12:28:32,521 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 12:28:32,537 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 12:28:32,537 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 12:28:32,538 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 12:28:32,538 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 12:28:32,538 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 12:28:32,539 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 12:28:32,539 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 12:28:32,539 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 12:28:32,539 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 12:28:32,539 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 12:28:32,539 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 12:28:32,540 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 12:28:32,540 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 12:28:32,541 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 12:28:32,541 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 12:28:32,541 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 12:28:32,541 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 12:28:32,541 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 12:28:32,541 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 12:28:32,542 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 12:28:32,542 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 12:28:32,542 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 12:28:32,542 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 12:28:32,542 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 12:28:32,543 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 12:28:32,543 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 12:28:32,543 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 12:28:32,543 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 12:28:32,546 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 12:28:32,547 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 12:28:32,547 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 12:28:32,547 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 12:28:32,547 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 12:28:32,599 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 12:28:32,612 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 12:28:32,616 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 12:28:32,617 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 12:28:32,618 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 12:28:32,618 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label47_true-unreach-call.c [2018-09-15 12:28:32,959 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dac6d9413/d8d58db2fceb46a5b0529b1d83d7e538/FLAG765c1f9d3 [2018-09-15 12:28:33,394 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 12:28:33,395 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label47_true-unreach-call.c [2018-09-15 12:28:33,418 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dac6d9413/d8d58db2fceb46a5b0529b1d83d7e538/FLAG765c1f9d3 [2018-09-15 12:28:33,439 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dac6d9413/d8d58db2fceb46a5b0529b1d83d7e538 [2018-09-15 12:28:33,450 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 12:28:33,453 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 12:28:33,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 12:28:33,455 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 12:28:33,461 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 12:28:33,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:28:33" (1/1) ... [2018-09-15 12:28:33,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56525e8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:28:33, skipping insertion in model container [2018-09-15 12:28:33,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:28:33" (1/1) ... [2018-09-15 12:28:33,478 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 12:28:34,279 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:28:34,298 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 12:28:34,535 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:28:34,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:28:34 WrapperNode [2018-09-15 12:28:34,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 12:28:34,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 12:28:34,621 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 12:28:34,621 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 12:28:34,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:28:34" (1/1) ... [2018-09-15 12:28:34,682 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:28:34" (1/1) ... [2018-09-15 12:28:34,805 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 12:28:34,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 12:28:34,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 12:28:34,806 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 12:28:35,129 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:28:34" (1/1) ... [2018-09-15 12:28:35,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:28:34" (1/1) ... [2018-09-15 12:28:35,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:28:34" (1/1) ... [2018-09-15 12:28:35,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:28:34" (1/1) ... [2018-09-15 12:28:35,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:28:34" (1/1) ... [2018-09-15 12:28:35,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:28:34" (1/1) ... [2018-09-15 12:28:35,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:28:34" (1/1) ... [2018-09-15 12:28:35,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 12:28:35,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 12:28:35,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 12:28:35,308 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 12:28:35,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:28:34" (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 12:28:35,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 12:28:35,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 12:28:35,381 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 12:28:35,381 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 12:28:35,381 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 12:28:35,381 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 12:28:35,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 12:28:35,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 12:28:35,382 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 12:28:35,382 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 12:28:42,445 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 12:28:42,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:28:42 BoogieIcfgContainer [2018-09-15 12:28:42,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 12:28:42,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 12:28:42,448 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 12:28:42,451 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 12:28:42,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 12:28:33" (1/3) ... [2018-09-15 12:28:42,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c45fe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:28:42, skipping insertion in model container [2018-09-15 12:28:42,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:28:34" (2/3) ... [2018-09-15 12:28:42,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c45fe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:28:42, skipping insertion in model container [2018-09-15 12:28:42,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:28:42" (3/3) ... [2018-09-15 12:28:42,458 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label47_true-unreach-call.c [2018-09-15 12:28:42,470 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 12:28:42,480 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 12:28:42,550 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 12:28:42,551 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 12:28:42,552 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 12:28:42,552 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 12:28:42,552 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 12:28:42,552 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 12:28:42,553 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 12:28:42,553 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 12:28:42,553 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 12:28:42,597 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-09-15 12:28:42,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-09-15 12:28:42,610 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:28:42,611 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:28:42,612 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:28:42,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1865210036, now seen corresponding path program 1 times [2018-09-15 12:28:42,622 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:28:42,624 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 73 with the following transitions: [2018-09-15 12:28:42,627 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], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [655], [657], [1556], [1560], [1566], [1570], [1579], [1580], [1581], [1583] [2018-09-15 12:28:42,697 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:28:42,698 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:28:44,857 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:28:44,859 INFO L272 AbstractInterpreter]: Visited 71 different actions 71 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 12:28:44,894 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:28:45,874 INFO L232 lantSequenceWeakener]: Weakened 70 states. On average, predicates are now at 80.88% of their original sizes. [2018-09-15 12:28:45,875 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:28:46,167 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:28:46,169 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:28:46,169 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 12:28:46,169 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:28:46,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 12:28:46,182 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 12:28:46,183 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 12:28:46,186 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 6 states. [2018-09-15 12:28:56,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:28:56,895 INFO L93 Difference]: Finished difference Result 1158 states and 2145 transitions. [2018-09-15 12:28:56,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 12:28:56,898 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 72 [2018-09-15 12:28:56,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:28:56,920 INFO L225 Difference]: With dead ends: 1158 [2018-09-15 12:28:56,920 INFO L226 Difference]: Without dead ends: 746 [2018-09-15 12:28:56,930 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 71 GetRequests, 67 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 12:28:56,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2018-09-15 12:28:57,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 744. [2018-09-15 12:28:57,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-09-15 12:28:57,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1075 transitions. [2018-09-15 12:28:57,055 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1075 transitions. Word has length 72 [2018-09-15 12:28:57,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:28:57,058 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1075 transitions. [2018-09-15 12:28:57,058 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 12:28:57,058 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1075 transitions. [2018-09-15 12:28:57,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-09-15 12:28:57,073 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:28:57,073 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-15 12:28:57,074 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:28:57,074 INFO L82 PathProgramCache]: Analyzing trace with hash 933777614, now seen corresponding path program 1 times [2018-09-15 12:28:57,074 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:28:57,074 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 165 with the following transitions: [2018-09-15 12:28:57,075 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], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [655], [657], [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 12:28:57,080 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:28:57,080 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:29:00,009 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:29:06,274 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:29:06,274 INFO L272 AbstractInterpreter]: Visited 99 different actions 191 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:29:06,310 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:29:09,925 INFO L232 lantSequenceWeakener]: Weakened 162 states. On average, predicates are now at 78.91% of their original sizes. [2018-09-15 12:29:09,926 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:29:12,658 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:29:12,658 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:29:12,659 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 12:29:12,659 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:29:12,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 12:29:12,661 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 12:29:12,661 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 12:29:12,662 INFO L87 Difference]: Start difference. First operand 744 states and 1075 transitions. Second operand 11 states. [2018-09-15 12:29:27,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:29:27,800 INFO L93 Difference]: Finished difference Result 1826 states and 3140 transitions. [2018-09-15 12:29:27,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 12:29:27,803 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 164 [2018-09-15 12:29:27,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:29:27,823 INFO L225 Difference]: With dead ends: 1826 [2018-09-15 12:29:27,824 INFO L226 Difference]: Without dead ends: 1426 [2018-09-15 12:29:27,828 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 170 GetRequests, 94 SyntacticMatches, 60 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 12:29:27,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2018-09-15 12:29:27,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1423. [2018-09-15 12:29:27,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1423 states. [2018-09-15 12:29:27,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 1772 transitions. [2018-09-15 12:29:27,893 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 1772 transitions. Word has length 164 [2018-09-15 12:29:27,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:29:27,894 INFO L480 AbstractCegarLoop]: Abstraction has 1423 states and 1772 transitions. [2018-09-15 12:29:27,894 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 12:29:27,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 1772 transitions. [2018-09-15 12:29:27,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-09-15 12:29:27,899 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:29:27,900 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 12:29:27,900 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:29:27,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1091679686, now seen corresponding path program 1 times [2018-09-15 12:29:27,901 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:29:27,901 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 201 with the following transitions: [2018-09-15 12:29:27,902 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], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [655], [657], [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 12:29:27,914 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:29:27,914 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:29:31,238 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:29:39,736 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:29:39,736 INFO L272 AbstractInterpreter]: Visited 135 different actions 263 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:29:39,775 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:29:43,911 INFO L232 lantSequenceWeakener]: Weakened 198 states. On average, predicates are now at 78.61% of their original sizes. [2018-09-15 12:29:43,911 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:29:45,409 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:29:45,410 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:29:45,410 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 12:29:45,410 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:29:45,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 12:29:45,412 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 12:29:45,412 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 12:29:45,412 INFO L87 Difference]: Start difference. First operand 1423 states and 1772 transitions. Second operand 11 states. [2018-09-15 12:30:00,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:30:00,180 INFO L93 Difference]: Finished difference Result 2505 states and 3837 transitions. [2018-09-15 12:30:00,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 12:30:00,183 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 200 [2018-09-15 12:30:00,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:30:00,201 INFO L225 Difference]: With dead ends: 2505 [2018-09-15 12:30:00,201 INFO L226 Difference]: Without dead ends: 2105 [2018-09-15 12:30:00,205 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 206 GetRequests, 130 SyntacticMatches, 60 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 12:30:00,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2105 states. [2018-09-15 12:30:00,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2105 to 2102. [2018-09-15 12:30:00,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2102 states. [2018-09-15 12:30:00,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2102 states to 2102 states and 2469 transitions. [2018-09-15 12:30:00,284 INFO L78 Accepts]: Start accepts. Automaton has 2102 states and 2469 transitions. Word has length 200 [2018-09-15 12:30:00,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:30:00,284 INFO L480 AbstractCegarLoop]: Abstraction has 2102 states and 2469 transitions. [2018-09-15 12:30:00,285 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 12:30:00,285 INFO L276 IsEmpty]: Start isEmpty. Operand 2102 states and 2469 transitions. [2018-09-15 12:30:00,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-09-15 12:30:00,290 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:30:00,291 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-15 12:30:00,291 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:30:00,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1498008079, now seen corresponding path program 1 times [2018-09-15 12:30:00,293 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:30:00,293 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 226 with the following transitions: [2018-09-15 12:30:00,293 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], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [655], [657], [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], [1004], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 12:30:00,304 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:30:00,305 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:30:03,689 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:30:11,813 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:30:11,814 INFO L272 AbstractInterpreter]: Visited 160 different actions 313 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:30:11,827 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:30:14,803 INFO L232 lantSequenceWeakener]: Weakened 223 states. On average, predicates are now at 78.46% of their original sizes. [2018-09-15 12:30:14,803 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:30:16,245 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:30:16,245 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:30:16,245 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 12:30:16,245 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:30:16,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 12:30:16,247 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 12:30:16,247 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-15 12:30:16,248 INFO L87 Difference]: Start difference. First operand 2102 states and 2469 transitions. Second operand 12 states. [2018-09-15 12:30:39,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:30:39,430 INFO L93 Difference]: Finished difference Result 3184 states and 4534 transitions. [2018-09-15 12:30:39,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 12:30:39,430 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 225 [2018-09-15 12:30:39,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:30:39,442 INFO L225 Difference]: With dead ends: 3184 [2018-09-15 12:30:39,442 INFO L226 Difference]: Without dead ends: 2784 [2018-09-15 12:30:39,445 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 232 GetRequests, 154 SyntacticMatches, 60 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 620 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-15 12:30:39,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2018-09-15 12:30:39,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 2781. [2018-09-15 12:30:39,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2781 states. [2018-09-15 12:30:39,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2781 states to 2781 states and 3166 transitions. [2018-09-15 12:30:39,540 INFO L78 Accepts]: Start accepts. Automaton has 2781 states and 3166 transitions. Word has length 225 [2018-09-15 12:30:39,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:30:39,541 INFO L480 AbstractCegarLoop]: Abstraction has 2781 states and 3166 transitions. [2018-09-15 12:30:39,541 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 12:30:39,541 INFO L276 IsEmpty]: Start isEmpty. Operand 2781 states and 3166 transitions. [2018-09-15 12:30:39,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2018-09-15 12:30:39,547 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:30:39,547 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-15 12:30:39,548 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:30:39,548 INFO L82 PathProgramCache]: Analyzing trace with hash 123659071, now seen corresponding path program 1 times [2018-09-15 12:30:39,548 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:30:39,548 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 266 with the following transitions: [2018-09-15 12:30:39,549 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], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [655], [657], [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], [1164], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 12:30:39,554 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:30:39,555 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:30:55,068 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:30:55,068 INFO L272 AbstractInterpreter]: Visited 200 different actions 393 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:30:55,076 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:30:58,550 INFO L232 lantSequenceWeakener]: Weakened 263 states. On average, predicates are now at 78.28% of their original sizes. [2018-09-15 12:30:58,551 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:30:59,957 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:30:59,958 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:30:59,958 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 12:30:59,958 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:30:59,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 12:30:59,958 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 12:30:59,959 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-15 12:30:59,959 INFO L87 Difference]: Start difference. First operand 2781 states and 3166 transitions. Second operand 12 states. [2018-09-15 12:31:14,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:31:14,366 INFO L93 Difference]: Finished difference Result 3863 states and 5231 transitions. [2018-09-15 12:31:14,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 12:31:14,367 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 265 [2018-09-15 12:31:14,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:31:14,383 INFO L225 Difference]: With dead ends: 3863 [2018-09-15 12:31:14,383 INFO L226 Difference]: Without dead ends: 3463 [2018-09-15 12:31:14,387 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 272 GetRequests, 194 SyntacticMatches, 60 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 620 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-15 12:31:14,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3463 states. [2018-09-15 12:31:14,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3463 to 3460. [2018-09-15 12:31:14,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3460 states. [2018-09-15 12:31:14,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3460 states to 3460 states and 3863 transitions. [2018-09-15 12:31:14,498 INFO L78 Accepts]: Start accepts. Automaton has 3460 states and 3863 transitions. Word has length 265 [2018-09-15 12:31:14,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:31:14,499 INFO L480 AbstractCegarLoop]: Abstraction has 3460 states and 3863 transitions. [2018-09-15 12:31:14,499 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 12:31:14,499 INFO L276 IsEmpty]: Start isEmpty. Operand 3460 states and 3863 transitions. [2018-09-15 12:31:14,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2018-09-15 12:31:14,506 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:31:14,506 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-09-15 12:31:14,506 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:31:14,507 INFO L82 PathProgramCache]: Analyzing trace with hash -749945016, now seen corresponding path program 1 times [2018-09-15 12:31:14,507 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:31:14,507 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 293 with the following transitions: [2018-09-15 12:31:14,507 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], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [655], [657], [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], [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 12:31:14,511 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:31:14,511 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:31:16,259 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:31:37,352 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:31:37,353 INFO L272 AbstractInterpreter]: Visited 136 different actions 665 times. Merged at 7 different actions 29 times. Never widened. Found 6 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:31:37,359 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:31:39,838 INFO L232 lantSequenceWeakener]: Weakened 290 states. On average, predicates are now at 78.23% of their original sizes. [2018-09-15 12:31:39,838 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:31:41,228 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:31:41,229 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:31:41,229 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 12:31:41,229 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:31:41,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 12:31:41,230 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 12:31:41,230 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-15 12:31:41,231 INFO L87 Difference]: Start difference. First operand 3460 states and 3863 transitions. Second operand 12 states. [2018-09-15 12:32:04,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:32:04,772 INFO L93 Difference]: Finished difference Result 4570 states and 5977 transitions. [2018-09-15 12:32:04,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-09-15 12:32:04,774 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 292 [2018-09-15 12:32:04,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:32:04,792 INFO L225 Difference]: With dead ends: 4570 [2018-09-15 12:32:04,792 INFO L226 Difference]: Without dead ends: 4170 [2018-09-15 12:32:04,797 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 306 GetRequests, 227 SyntacticMatches, 54 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 516 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=150, Invalid=552, Unknown=0, NotChecked=0, Total=702 [2018-09-15 12:32:04,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4170 states. [2018-09-15 12:32:04,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4170 to 4153. [2018-09-15 12:32:04,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4153 states. [2018-09-15 12:32:04,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4153 states to 4153 states and 4608 transitions. [2018-09-15 12:32:04,932 INFO L78 Accepts]: Start accepts. Automaton has 4153 states and 4608 transitions. Word has length 292 [2018-09-15 12:32:04,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:32:04,932 INFO L480 AbstractCegarLoop]: Abstraction has 4153 states and 4608 transitions. [2018-09-15 12:32:04,933 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 12:32:04,933 INFO L276 IsEmpty]: Start isEmpty. Operand 4153 states and 4608 transitions. [2018-09-15 12:32:04,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2018-09-15 12:32:04,941 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:32:04,942 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-15 12:32:04,942 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:32:04,942 INFO L82 PathProgramCache]: Analyzing trace with hash 136228838, now seen corresponding path program 1 times [2018-09-15 12:32:04,942 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:32:04,943 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 313 with the following transitions: [2018-09-15 12:32:04,943 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], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [655], [657], [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 12:32:04,950 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:32:04,950 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:32:34,274 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:32:34,274 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 12:32:34,284 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:32:40,142 INFO L232 lantSequenceWeakener]: Weakened 310 states. On average, predicates are now at 78.13% of their original sizes. [2018-09-15 12:32:40,142 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:32:41,737 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:32:41,738 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:32:41,738 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-15 12:32:41,738 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:32:41,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-15 12:32:41,740 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-15 12:32:41,740 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-15 12:32:41,740 INFO L87 Difference]: Start difference. First operand 4153 states and 4608 transitions. Second operand 13 states. Received shutdown request... [2018-09-15 12:32:43,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-15 12:32:43,464 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-15 12:32:43,471 WARN L206 ceAbstractionStarter]: Timeout [2018-09-15 12:32:43,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 12:32:43 BoogieIcfgContainer [2018-09-15 12:32:43,471 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 12:32:43,472 INFO L168 Benchmark]: Toolchain (without parser) took 250021.97 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-09-15 12:32:43,474 INFO L168 Benchmark]: CDTParser took 0.23 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 12:32:43,475 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1165.33 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. [2018-09-15 12:32:43,476 INFO L168 Benchmark]: Boogie Procedure Inliner took 184.77 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-15 12:32:43,476 INFO L168 Benchmark]: Boogie Preprocessor took 501.17 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 826.8 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -981.8 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. [2018-09-15 12:32:43,477 INFO L168 Benchmark]: RCFGBuilder took 7139.18 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 272.5 MB). Peak memory consumption was 272.5 MB. Max. memory is 7.1 GB. [2018-09-15 12:32:43,478 INFO L168 Benchmark]: TraceAbstraction took 241024.22 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 2.5 GB in the end (delta: -508.0 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-09-15 12:32:43,483 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 1165.33 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 184.77 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 501.17 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 826.8 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -981.8 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7139.18 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 272.5 MB). Peak memory consumption was 272.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 241024.22 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 2.5 GB in the end (delta: -508.0 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 202]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 202). Cancelled while BasicCegarLoop was constructing difference of abstraction (4153states) and FLOYD_HOARE automaton (currently 7 states, 13 states before enhancement), while ReachableStatesComputation was computing reachable states (133 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 240.9s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 103.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2445 SDtfs, 9975 SDslu, 2015 SDs, 0 SdLazy, 22912 SolverSat, 3682 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 94.0s Time, PredicateUnifierStatistics: 14 DeclaredPredicates, 1572 GetRequests, 1106 SyntacticMatches, 354 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3312 ImplicationChecksByTransitivity, 11.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4153occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 102.6s AbstIntTime, 7 AbstIntIterations, 7 AbstIntStrong, 0.9957486524152712 AbsIntWeakeningRatio, 0.09192383453709783 AbsIntAvgWeakeningVarsNumRemoved, 118.62048588312541 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 6 MinimizatonAttempts, 31 StatesRemovedByMinimization, 6 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_label47_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_12-32-43-497.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label47_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_12-32-43-497.csv Completed graceful shutdown