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_label32_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 04:26:34,106 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 04:26:34,109 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 04:26:34,132 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 04:26:34,133 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 04:26:34,135 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 04:26:34,136 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 04:26:34,139 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 04:26:34,143 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 04:26:34,144 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 04:26:34,151 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 04:26:34,152 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 04:26:34,156 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 04:26:34,158 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 04:26:34,161 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 04:26:34,162 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 04:26:34,162 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 04:26:34,166 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 04:26:34,173 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 04:26:34,176 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 04:26:34,177 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 04:26:34,179 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 04:26:34,186 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 04:26:34,186 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 04:26:34,186 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 04:26:34,188 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 04:26:34,189 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 04:26:34,190 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 04:26:34,191 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 04:26:34,192 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 04:26:34,192 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 04:26:34,194 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 04:26:34,195 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 04:26:34,195 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 04:26:34,196 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 04:26:34,197 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 04:26:34,197 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 [2018-09-19 04:26:34,225 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 04:26:34,226 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 04:26:34,227 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 04:26:34,227 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 04:26:34,228 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 04:26:34,228 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 04:26:34,228 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 04:26:34,228 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 04:26:34,229 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 04:26:34,229 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 04:26:34,229 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 04:26:34,229 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 04:26:34,230 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 04:26:34,230 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 04:26:34,231 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 04:26:34,231 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 04:26:34,231 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 04:26:34,231 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 04:26:34,233 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 04:26:34,233 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 04:26:34,233 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 04:26:34,234 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 04:26:34,234 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 04:26:34,234 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 04:26:34,234 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 04:26:34,234 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 04:26:34,235 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 04:26:34,235 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 04:26:34,235 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 04:26:34,235 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 04:26:34,235 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 04:26:34,236 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 04:26:34,236 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 04:26:34,236 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 04:26:34,313 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 04:26:34,333 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 04:26:34,341 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 04:26:34,343 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 04:26:34,343 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 04:26:34,344 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label32_true-unreach-call.c [2018-09-19 04:26:34,699 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/214519672/8e3533b441b3419f8e574d06fcfd3d5f/FLAG2cd00830c [2018-09-19 04:26:35,077 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 04:26:35,079 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label32_true-unreach-call.c [2018-09-19 04:26:35,104 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/214519672/8e3533b441b3419f8e574d06fcfd3d5f/FLAG2cd00830c [2018-09-19 04:26:35,130 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/214519672/8e3533b441b3419f8e574d06fcfd3d5f [2018-09-19 04:26:35,144 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 04:26:35,148 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 04:26:35,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 04:26:35,150 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 04:26:35,160 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 04:26:35,162 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:26:35" (1/1) ... [2018-09-19 04:26:35,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@674df799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:26:35, skipping insertion in model container [2018-09-19 04:26:35,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:26:35" (1/1) ... [2018-09-19 04:26:35,181 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 04:26:36,163 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 04:26:36,183 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 04:26:36,445 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 04:26:36,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:26:36 WrapperNode [2018-09-19 04:26:36,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 04:26:36,565 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 04:26:36,565 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 04:26:36,566 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 04:26:36,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:26:36" (1/1) ... [2018-09-19 04:26:36,655 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:26:36" (1/1) ... [2018-09-19 04:26:36,803 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 04:26:36,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 04:26:36,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 04:26:36,805 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 04:26:37,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:26:36" (1/1) ... [2018-09-19 04:26:37,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:26:36" (1/1) ... [2018-09-19 04:26:37,205 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:26:36" (1/1) ... [2018-09-19 04:26:37,205 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:26:36" (1/1) ... [2018-09-19 04:26:37,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:26:36" (1/1) ... [2018-09-19 04:26:37,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:26:36" (1/1) ... [2018-09-19 04:26:37,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:26:36" (1/1) ... [2018-09-19 04:26:37,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 04:26:37,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 04:26:37,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 04:26:37,383 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 04:26:37,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:26:36" (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 [2018-09-19 04:26:37,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 04:26:37,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 04:26:37,471 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 04:26:37,471 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 04:26:37,471 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 04:26:37,472 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 04:26:37,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 04:26:37,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 04:26:37,472 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 04:26:37,472 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 04:26:44,351 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 04:26:44,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:26:44 BoogieIcfgContainer [2018-09-19 04:26:44,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 04:26:44,354 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 04:26:44,355 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 04:26:44,358 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 04:26:44,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:26:35" (1/3) ... [2018-09-19 04:26:44,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@429f3f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:26:44, skipping insertion in model container [2018-09-19 04:26:44,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:26:36" (2/3) ... [2018-09-19 04:26:44,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@429f3f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:26:44, skipping insertion in model container [2018-09-19 04:26:44,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:26:44" (3/3) ... [2018-09-19 04:26:44,362 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label32_true-unreach-call.c [2018-09-19 04:26:44,372 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 04:26:44,381 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 04:26:44,437 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 04:26:44,437 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 04:26:44,438 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 04:26:44,438 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 04:26:44,438 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 04:26:44,438 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 04:26:44,438 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 04:26:44,439 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 04:26:44,439 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 04:26:44,485 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-09-19 04:26:44,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-09-19 04:26:44,496 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:26:44,498 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] [2018-09-19 04:26:44,499 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:26:44,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1067994659, now seen corresponding path program 1 times [2018-09-19 04:26:44,505 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:26:44,506 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 56 with the following transitions: [2018-09-19 04:26:44,509 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], [519], [521], [1556], [1560], [1566], [1570], [1579], [1580], [1581], [1583] [2018-09-19 04:26:44,573 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:26:44,573 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:26:46,029 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:26:46,031 INFO L272 AbstractInterpreter]: Visited 54 different actions 54 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 04:26:46,047 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:26:46,673 INFO L232 lantSequenceWeakener]: Weakened 53 states. On average, predicates are now at 80.58% of their original sizes. [2018-09-19 04:26:46,674 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:26:46,992 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:26:46,994 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:26:46,994 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 04:26:46,995 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:26:47,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 04:26:47,007 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 04:26:47,008 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 04:26:47,011 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 6 states. [2018-09-19 04:26:56,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:26:56,125 INFO L93 Difference]: Finished difference Result 1158 states and 2145 transitions. [2018-09-19 04:26:56,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 04:26:56,127 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2018-09-19 04:26:56,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:26:56,149 INFO L225 Difference]: With dead ends: 1158 [2018-09-19 04:26:56,149 INFO L226 Difference]: Without dead ends: 746 [2018-09-19 04:26:56,159 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 54 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 04:26:56,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2018-09-19 04:26:56,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 744. [2018-09-19 04:26:56,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-09-19 04:26:56,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1075 transitions. [2018-09-19 04:26:56,281 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1075 transitions. Word has length 55 [2018-09-19 04:26:56,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:26:56,282 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1075 transitions. [2018-09-19 04:26:56,282 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 04:26:56,282 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1075 transitions. [2018-09-19 04:26:56,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-09-19 04:26:56,292 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:26:56,292 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:26:56,293 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:26:56,293 INFO L82 PathProgramCache]: Analyzing trace with hash 1264573184, now seen corresponding path program 1 times [2018-09-19 04:26:56,293 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:26:56,293 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 148 with the following transitions: [2018-09-19 04:26:56,294 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], [519], [521], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:26:56,301 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:26:56,301 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:26:59,229 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:27:03,180 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:27:03,180 INFO L272 AbstractInterpreter]: Visited 99 different actions 284 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 04:27:03,188 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:27:04,461 INFO L232 lantSequenceWeakener]: Weakened 145 states. On average, predicates are now at 78.55% of their original sizes. [2018-09-19 04:27:04,462 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:27:04,975 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:27:04,975 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:27:04,975 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:27:04,976 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:27:04,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:27:04,978 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:27:04,978 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:27:04,978 INFO L87 Difference]: Start difference. First operand 744 states and 1075 transitions. Second operand 11 states. [2018-09-19 04:27:19,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:27:19,224 INFO L93 Difference]: Finished difference Result 1772 states and 3024 transitions. [2018-09-19 04:27:19,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 04:27:19,225 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 147 [2018-09-19 04:27:19,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:27:19,237 INFO L225 Difference]: With dead ends: 1772 [2018-09-19 04:27:19,237 INFO L226 Difference]: Without dead ends: 1372 [2018-09-19 04:27:19,243 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 155 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2018-09-19 04:27:19,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2018-09-19 04:27:19,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1094. [2018-09-19 04:27:19,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1094 states. [2018-09-19 04:27:19,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1441 transitions. [2018-09-19 04:27:19,334 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1441 transitions. Word has length 147 [2018-09-19 04:27:19,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:27:19,335 INFO L480 AbstractCegarLoop]: Abstraction has 1094 states and 1441 transitions. [2018-09-19 04:27:19,335 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 04:27:19,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1441 transitions. [2018-09-19 04:27:19,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2018-09-19 04:27:19,350 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:27:19,351 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:27:19,352 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:27:19,352 INFO L82 PathProgramCache]: Analyzing trace with hash 2114872200, now seen corresponding path program 1 times [2018-09-19 04:27:19,352 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:27:19,353 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 184 with the following transitions: [2018-09-19 04:27:19,354 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], [519], [521], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:27:19,364 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:27:19,364 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:27:23,132 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:27:29,481 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:27:29,482 INFO L272 AbstractInterpreter]: Visited 135 different actions 392 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 04:27:29,487 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:27:30,798 INFO L232 lantSequenceWeakener]: Weakened 181 states. On average, predicates are now at 78.29% of their original sizes. [2018-09-19 04:27:30,799 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:27:31,282 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:27:31,283 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:27:31,283 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:27:31,283 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:27:31,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:27:31,284 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:27:31,284 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:27:31,285 INFO L87 Difference]: Start difference. First operand 1094 states and 1441 transitions. Second operand 11 states. [2018-09-19 04:27:47,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:27:47,477 INFO L93 Difference]: Finished difference Result 2749 states and 4050 transitions. [2018-09-19 04:27:47,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 04:27:47,488 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 183 [2018-09-19 04:27:47,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:27:47,499 INFO L225 Difference]: With dead ends: 2749 [2018-09-19 04:27:47,499 INFO L226 Difference]: Without dead ends: 1999 [2018-09-19 04:27:47,502 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 191 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-19 04:27:47,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2018-09-19 04:27:47,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1450. [2018-09-19 04:27:47,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1450 states. [2018-09-19 04:27:47,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 1815 transitions. [2018-09-19 04:27:47,567 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 1815 transitions. Word has length 183 [2018-09-19 04:27:47,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:27:47,568 INFO L480 AbstractCegarLoop]: Abstraction has 1450 states and 1815 transitions. [2018-09-19 04:27:47,568 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 04:27:47,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 1815 transitions. [2018-09-19 04:27:47,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2018-09-19 04:27:47,574 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:27:47,574 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:27:47,575 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:27:47,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1784638616, now seen corresponding path program 1 times [2018-09-19 04:27:47,575 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:27:47,575 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 296 with the following transitions: [2018-09-19 04:27:47,576 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], [519], [521], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:27:47,584 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:27:47,585 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:28:00,102 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:28:00,103 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. [2018-09-19 04:28:00,117 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:28:01,889 INFO L232 lantSequenceWeakener]: Weakened 293 states. On average, predicates are now at 77.9% of their original sizes. [2018-09-19 04:28:01,889 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:28:02,349 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:28:02,349 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:28:02,350 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 04:28:02,350 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:28:02,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 04:28:02,351 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 04:28:02,351 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 04:28:02,351 INFO L87 Difference]: Start difference. First operand 1450 states and 1815 transitions. Second operand 13 states. [2018-09-19 04:28:17,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:28:17,591 INFO L93 Difference]: Finished difference Result 2897 states and 3954 transitions. [2018-09-19 04:28:17,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 04:28:17,594 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 295 [2018-09-19 04:28:17,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:28:17,605 INFO L225 Difference]: With dead ends: 2897 [2018-09-19 04:28:17,605 INFO L226 Difference]: Without dead ends: 1793 [2018-09-19 04:28:17,609 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 305 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2018-09-19 04:28:17,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1793 states. [2018-09-19 04:28:17,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1793 to 1790. [2018-09-19 04:28:17,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1790 states. [2018-09-19 04:28:17,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1790 states to 1790 states and 2172 transitions. [2018-09-19 04:28:17,671 INFO L78 Accepts]: Start accepts. Automaton has 1790 states and 2172 transitions. Word has length 295 [2018-09-19 04:28:17,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:28:17,672 INFO L480 AbstractCegarLoop]: Abstraction has 1790 states and 2172 transitions. [2018-09-19 04:28:17,672 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 04:28:17,672 INFO L276 IsEmpty]: Start isEmpty. Operand 1790 states and 2172 transitions. [2018-09-19 04:28:17,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2018-09-19 04:28:17,677 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:28:17,678 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:28:17,678 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:28:17,679 INFO L82 PathProgramCache]: Analyzing trace with hash 317956088, now seen corresponding path program 1 times [2018-09-19 04:28:17,679 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:28:17,679 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 304 with the following transitions: [2018-09-19 04:28:17,679 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], [519], [521], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:28:17,691 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:28:17,691 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:28:34,393 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:28:34,393 INFO L272 AbstractInterpreter]: Visited 255 different actions 752 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 04:28:34,397 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:28:36,071 INFO L232 lantSequenceWeakener]: Weakened 301 states. On average, predicates are now at 77.89% of their original sizes. [2018-09-19 04:28:36,071 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:28:36,539 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:28:36,539 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:28:36,540 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 04:28:36,540 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:28:36,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 04:28:36,540 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 04:28:36,541 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 04:28:36,541 INFO L87 Difference]: Start difference. First operand 1790 states and 2172 transitions. Second operand 14 states. [2018-09-19 04:28:53,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:28:53,237 INFO L93 Difference]: Finished difference Result 3242 states and 4318 transitions. [2018-09-19 04:28:53,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 04:28:53,239 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 303 [2018-09-19 04:28:53,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:28:53,251 INFO L225 Difference]: With dead ends: 3242 [2018-09-19 04:28:53,252 INFO L226 Difference]: Without dead ends: 2138 [2018-09-19 04:28:53,256 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 315 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=173, Invalid=529, Unknown=0, NotChecked=0, Total=702 [2018-09-19 04:28:53,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2138 states. [2018-09-19 04:28:53,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2138 to 2132. [2018-09-19 04:28:53,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2132 states. [2018-09-19 04:28:53,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2132 states to 2132 states and 2533 transitions. [2018-09-19 04:28:53,333 INFO L78 Accepts]: Start accepts. Automaton has 2132 states and 2533 transitions. Word has length 303 [2018-09-19 04:28:53,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:28:53,334 INFO L480 AbstractCegarLoop]: Abstraction has 2132 states and 2533 transitions. [2018-09-19 04:28:53,334 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 04:28:53,334 INFO L276 IsEmpty]: Start isEmpty. Operand 2132 states and 2533 transitions. [2018-09-19 04:28:53,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2018-09-19 04:28:53,343 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:28:53,343 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 04:28:53,344 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:28:53,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1764350533, now seen corresponding path program 1 times [2018-09-19 04:28:53,344 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:28:53,345 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 388 with the following transitions: [2018-09-19 04:28:53,346 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], [519], [521], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [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] [2018-09-19 04:28:53,353 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:28:53,353 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:28:55,127 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:29:15,878 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:29:15,879 INFO L272 AbstractInterpreter]: Visited 248 different actions 983 times. Merged at 7 different actions 24 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 04:29:15,884 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:29:18,517 INFO L232 lantSequenceWeakener]: Weakened 385 states. On average, predicates are now at 77.78% of their original sizes. [2018-09-19 04:29:18,517 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:29:18,908 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:29:18,909 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:29:18,909 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:29:18,909 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:29:18,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:29:18,910 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:29:18,910 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:29:18,911 INFO L87 Difference]: Start difference. First operand 2132 states and 2533 transitions. Second operand 11 states. [2018-09-19 04:29:32,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:29:32,806 INFO L93 Difference]: Finished difference Result 4495 states and 5901 transitions. [2018-09-19 04:29:32,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 04:29:32,807 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 387 [2018-09-19 04:29:32,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:29:32,822 INFO L225 Difference]: With dead ends: 4495 [2018-09-19 04:29:32,822 INFO L226 Difference]: Without dead ends: 3049 [2018-09-19 04:29:32,828 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 397 GetRequests, 377 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2018-09-19 04:29:32,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3049 states. [2018-09-19 04:29:32,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3049 to 2489. [2018-09-19 04:29:32,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2489 states. [2018-09-19 04:29:32,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2489 states to 2489 states and 2917 transitions. [2018-09-19 04:29:32,909 INFO L78 Accepts]: Start accepts. Automaton has 2489 states and 2917 transitions. Word has length 387 [2018-09-19 04:29:32,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:29:32,911 INFO L480 AbstractCegarLoop]: Abstraction has 2489 states and 2917 transitions. [2018-09-19 04:29:32,911 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 04:29:32,911 INFO L276 IsEmpty]: Start isEmpty. Operand 2489 states and 2917 transitions. [2018-09-19 04:29:32,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2018-09-19 04:29:32,921 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:29:32,922 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 04:29:32,922 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:29:32,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1630028316, now seen corresponding path program 1 times [2018-09-19 04:29:32,923 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:29:32,923 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 405 with the following transitions: [2018-09-19 04:29:32,923 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], [519], [521], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [796], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:29:32,930 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:29:32,930 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:29:39,872 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:29:55,096 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:29:55,096 INFO L272 AbstractInterpreter]: Visited 256 different actions 1013 times. Merged at 7 different actions 22 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 04:29:55,101 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:29:57,587 INFO L232 lantSequenceWeakener]: Weakened 402 states. On average, predicates are now at 77.75% of their original sizes. [2018-09-19 04:29:57,587 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:29:57,998 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:29:57,999 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:29:57,999 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 04:29:57,999 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:29:58,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 04:29:58,000 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 04:29:58,000 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 04:29:58,001 INFO L87 Difference]: Start difference. First operand 2489 states and 2917 transitions. Second operand 13 states. [2018-09-19 04:30:13,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:30:13,216 INFO L93 Difference]: Finished difference Result 4647 states and 5816 transitions. [2018-09-19 04:30:13,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 04:30:13,221 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 404 [2018-09-19 04:30:13,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:30:13,232 INFO L225 Difference]: With dead ends: 4647 [2018-09-19 04:30:13,233 INFO L226 Difference]: Without dead ends: 2844 [2018-09-19 04:30:13,238 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 414 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2018-09-19 04:30:13,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states. [2018-09-19 04:30:13,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 2833. [2018-09-19 04:30:13,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2833 states. [2018-09-19 04:30:13,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2833 states to 2833 states and 3297 transitions. [2018-09-19 04:30:13,312 INFO L78 Accepts]: Start accepts. Automaton has 2833 states and 3297 transitions. Word has length 404 [2018-09-19 04:30:13,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:30:13,313 INFO L480 AbstractCegarLoop]: Abstraction has 2833 states and 3297 transitions. [2018-09-19 04:30:13,313 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 04:30:13,314 INFO L276 IsEmpty]: Start isEmpty. Operand 2833 states and 3297 transitions. [2018-09-19 04:30:13,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2018-09-19 04:30:13,319 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:30:13,320 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 04:30:13,320 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:30:13,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1705603789, now seen corresponding path program 1 times [2018-09-19 04:30:13,320 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:30:13,321 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 424 with the following transitions: [2018-09-19 04:30:13,321 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], [519], [521], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [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] [2018-09-19 04:30:13,326 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:30:13,326 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:30:15,702 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:30:35,718 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:30:35,719 INFO L272 AbstractInterpreter]: Visited 248 different actions 983 times. Merged at 7 different actions 24 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 04:30:35,726 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:30:37,849 INFO L232 lantSequenceWeakener]: Weakened 421 states. On average, predicates are now at 77.73% of their original sizes. [2018-09-19 04:30:37,849 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:30:38,162 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:30:38,163 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:30:38,163 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:30:38,163 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:30:38,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:30:38,164 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:30:38,164 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:30:38,164 INFO L87 Difference]: Start difference. First operand 2833 states and 3297 transitions. Second operand 11 states. Received shutdown request... [2018-09-19 04:30:43,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 04:30:43,031 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 04:30:43,037 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 04:30:43,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 04:30:43 BoogieIcfgContainer [2018-09-19 04:30:43,037 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 04:30:43,038 INFO L168 Benchmark]: Toolchain (without parser) took 247893.39 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 3.0 GB in the end (delta: -1.6 GB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-09-19 04:30:43,040 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 04:30:43,040 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1415.05 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. [2018-09-19 04:30:43,041 INFO L168 Benchmark]: Boogie Procedure Inliner took 238.71 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. [2018-09-19 04:30:43,042 INFO L168 Benchmark]: Boogie Preprocessor took 577.82 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 802.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -951.0 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. [2018-09-19 04:30:43,043 INFO L168 Benchmark]: RCFGBuilder took 6970.52 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 277.4 MB). Peak memory consumption was 277.4 MB. Max. memory is 7.1 GB. [2018-09-19 04:30:43,043 INFO L168 Benchmark]: TraceAbstraction took 238682.91 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 3.0 GB in the end (delta: -1.1 GB). Peak memory consumption was 794.0 MB. Max. memory is 7.1 GB. [2018-09-19 04:30:43,049 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1415.05 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 238.71 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 577.82 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 802.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -951.0 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6970.52 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 277.4 MB). Peak memory consumption was 277.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 238682.91 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 3.0 GB in the end (delta: -1.1 GB). Peak memory consumption was 794.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 151]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 151). Cancelled while BasicCegarLoop was constructing difference of abstraction (2833states) and FLOYD_HOARE automaton (currently 15 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (709 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 238.6s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 105.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2813 SDtfs, 13662 SDslu, 3181 SDs, 0 SdLazy, 34679 SolverSat, 3315 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 93.5s Time, PredicateUnifierStatistics: 16 DeclaredPredicates, 2262 GetRequests, 2115 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 558 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2833occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 114.9s AbstIntTime, 8 AbstIntIterations, 8 AbstIntStrong, 0.9963866674370778 AbsIntWeakeningRatio, 0.07857469164001828 AbsIntAvgWeakeningVarsNumRemoved, 921.207857469164 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 1409 StatesRemovedByMinimization, 7 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_label32_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_04-30-43-062.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label32_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_04-30-43-062.csv Completed graceful shutdown