java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label32_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 11:01:08,118 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 11:01:08,121 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 11:01:08,136 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 11:01:08,136 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 11:01:08,137 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 11:01:08,139 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 11:01:08,141 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 11:01:08,142 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 11:01:08,143 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 11:01:08,144 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 11:01:08,144 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 11:01:08,145 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 11:01:08,146 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 11:01:08,148 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 11:01:08,148 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 11:01:08,149 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 11:01:08,152 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 11:01:08,154 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 11:01:08,156 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 11:01:08,157 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 11:01:08,158 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 11:01:08,160 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 11:01:08,161 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 11:01:08,161 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 11:01:08,162 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 11:01:08,163 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 11:01:08,164 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 11:01:08,165 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 11:01:08,166 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 11:01:08,166 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 11:01:08,167 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 11:01:08,167 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 11:01:08,167 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 11:01:08,168 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 11:01:08,169 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 11:01:08,170 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-19 11:01:08,187 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 11:01:08,187 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 11:01:08,188 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 11:01:08,188 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 11:01:08,188 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 11:01:08,188 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 11:01:08,189 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 11:01:08,189 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 11:01:08,189 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 11:01:08,189 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 11:01:08,189 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 11:01:08,190 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 11:01:08,190 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 11:01:08,190 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 11:01:08,191 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 11:01:08,191 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 11:01:08,191 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 11:01:08,191 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 11:01:08,191 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 11:01:08,192 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 11:01:08,192 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 11:01:08,192 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 11:01:08,192 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 11:01:08,192 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 11:01:08,193 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 11:01:08,193 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 11:01:08,193 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 11:01:08,193 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 11:01:08,193 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 11:01:08,194 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 11:01:08,194 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 11:01:08,194 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 11:01:08,194 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 11:01:08,195 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 11:01:08,195 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 11:01:08,269 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 11:01:08,284 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 11:01:08,288 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 11:01:08,290 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 11:01:08,290 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 11:01:08,291 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label32_true-unreach-call.c [2018-09-19 11:01:08,679 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10541cd2a/b379659b9cd84595a7aa26f38cf4b10b/FLAGc251bde76 [2018-09-19 11:01:09,158 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 11:01:09,159 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label32_true-unreach-call.c [2018-09-19 11:01:09,187 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10541cd2a/b379659b9cd84595a7aa26f38cf4b10b/FLAGc251bde76 [2018-09-19 11:01:09,205 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10541cd2a/b379659b9cd84595a7aa26f38cf4b10b [2018-09-19 11:01:09,216 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 11:01:09,220 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 11:01:09,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 11:01:09,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 11:01:09,230 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 11:01:09,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 11:01:09" (1/1) ... [2018-09-19 11:01:09,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35cc9187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:01:09, skipping insertion in model container [2018-09-19 11:01:09,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 11:01:09" (1/1) ... [2018-09-19 11:01:09,248 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 11:01:10,068 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 11:01:10,088 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 11:01:10,345 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 11:01:10,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:01:10 WrapperNode [2018-09-19 11:01:10,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 11:01:10,465 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 11:01:10,465 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 11:01:10,466 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 11:01:10,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:01:10" (1/1) ... [2018-09-19 11:01:10,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:01:10" (1/1) ... [2018-09-19 11:01:10,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 11:01:10,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 11:01:10,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 11:01:10,686 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 11:01:11,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:01:10" (1/1) ... [2018-09-19 11:01:11,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:01:10" (1/1) ... [2018-09-19 11:01:11,085 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:01:10" (1/1) ... [2018-09-19 11:01:11,086 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:01:10" (1/1) ... [2018-09-19 11:01:11,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:01:10" (1/1) ... [2018-09-19 11:01:11,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:01:10" (1/1) ... [2018-09-19 11:01:11,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:01:10" (1/1) ... [2018-09-19 11:01:11,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 11:01:11,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 11:01:11,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 11:01:11,286 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 11:01:11,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:01:10" (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 11:01:11,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 11:01:11,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 11:01:11,365 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 11:01:11,365 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 11:01:11,365 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 11:01:11,366 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 11:01:11,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 11:01:11,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 11:01:11,366 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 11:01:11,366 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 11:01:17,527 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 11:01:17,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 11:01:17 BoogieIcfgContainer [2018-09-19 11:01:17,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 11:01:17,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 11:01:17,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 11:01:17,534 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 11:01:17,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 11:01:09" (1/3) ... [2018-09-19 11:01:17,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4757967a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 11:01:17, skipping insertion in model container [2018-09-19 11:01:17,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:01:10" (2/3) ... [2018-09-19 11:01:17,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4757967a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 11:01:17, skipping insertion in model container [2018-09-19 11:01:17,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 11:01:17" (3/3) ... [2018-09-19 11:01:17,540 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label32_true-unreach-call.c [2018-09-19 11:01:17,550 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 11:01:17,559 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 11:01:17,618 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 11:01:17,619 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 11:01:17,619 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 11:01:17,619 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 11:01:17,620 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 11:01:17,620 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 11:01:17,620 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 11:01:17,620 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 11:01:17,620 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 11:01:17,660 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-09-19 11:01:17,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-09-19 11:01:17,670 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:01:17,672 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 11:01:17,673 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:01:17,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1067994659, now seen corresponding path program 1 times [2018-09-19 11:01:17,681 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:01:17,682 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 56 with the following transitions: [2018-09-19 11:01:17,684 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 11:01:17,746 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:01:17,746 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:01:19,006 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:01:19,007 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 11:01:19,029 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:01:19,640 INFO L232 lantSequenceWeakener]: Weakened 53 states. On average, predicates are now at 80.58% of their original sizes. [2018-09-19 11:01:19,641 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:01:19,963 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:01:19,965 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:01:19,965 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 11:01:19,965 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:01:19,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 11:01:19,978 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 11:01:19,979 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 11:01:19,983 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 6 states. [2018-09-19 11:01:29,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:01:29,437 INFO L93 Difference]: Finished difference Result 1158 states and 2145 transitions. [2018-09-19 11:01:29,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 11:01:29,440 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2018-09-19 11:01:29,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:01:29,466 INFO L225 Difference]: With dead ends: 1158 [2018-09-19 11:01:29,467 INFO L226 Difference]: Without dead ends: 746 [2018-09-19 11:01:29,476 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 54 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 11:01:29,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2018-09-19 11:01:29,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 744. [2018-09-19 11:01:29,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-09-19 11:01:29,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1075 transitions. [2018-09-19 11:01:29,577 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1075 transitions. Word has length 55 [2018-09-19 11:01:29,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:01:29,578 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1075 transitions. [2018-09-19 11:01:29,578 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 11:01:29,578 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1075 transitions. [2018-09-19 11:01:29,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-09-19 11:01:29,592 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:01:29,592 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 11:01:29,592 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:01:29,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1264573184, now seen corresponding path program 1 times [2018-09-19 11:01:29,593 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:01:29,593 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 148 with the following transitions: [2018-09-19 11:01:29,594 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 11:01:29,603 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:01:29,604 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:01:31,689 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:01:35,514 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:01:35,515 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 11:01:35,524 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:01:36,517 INFO L232 lantSequenceWeakener]: Weakened 145 states. On average, predicates are now at 78.55% of their original sizes. [2018-09-19 11:01:36,518 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:01:37,548 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:01:37,548 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:01:37,548 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 11:01:37,549 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:01:37,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 11:01:37,550 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 11:01:37,551 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 11:01:37,551 INFO L87 Difference]: Start difference. First operand 744 states and 1075 transitions. Second operand 11 states. [2018-09-19 11:01:51,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:01:51,914 INFO L93 Difference]: Finished difference Result 1772 states and 3024 transitions. [2018-09-19 11:01:51,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 11:01:51,915 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 147 [2018-09-19 11:01:51,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:01:51,926 INFO L225 Difference]: With dead ends: 1772 [2018-09-19 11:01:51,926 INFO L226 Difference]: Without dead ends: 1372 [2018-09-19 11:01:51,930 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 155 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2018-09-19 11:01:51,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2018-09-19 11:01:52,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1094. [2018-09-19 11:01:52,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1094 states. [2018-09-19 11:01:52,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1441 transitions. [2018-09-19 11:01:52,017 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1441 transitions. Word has length 147 [2018-09-19 11:01:52,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:01:52,018 INFO L480 AbstractCegarLoop]: Abstraction has 1094 states and 1441 transitions. [2018-09-19 11:01:52,018 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 11:01:52,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1441 transitions. [2018-09-19 11:01:52,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2018-09-19 11:01:52,034 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:01:52,034 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 11:01:52,035 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:01:52,036 INFO L82 PathProgramCache]: Analyzing trace with hash 2114872200, now seen corresponding path program 1 times [2018-09-19 11:01:52,036 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:01:52,036 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 184 with the following transitions: [2018-09-19 11:01:52,037 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 11:01:52,047 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:01:52,047 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:01:54,773 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:02:00,004 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:02:00,004 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 11:02:00,012 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:02:01,052 INFO L232 lantSequenceWeakener]: Weakened 181 states. On average, predicates are now at 78.29% of their original sizes. [2018-09-19 11:02:01,053 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:02:01,926 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:02:01,927 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:02:01,927 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 11:02:01,927 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:02:01,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 11:02:01,928 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 11:02:01,929 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 11:02:01,929 INFO L87 Difference]: Start difference. First operand 1094 states and 1441 transitions. Second operand 11 states. [2018-09-19 11:02:22,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:02:22,950 INFO L93 Difference]: Finished difference Result 2749 states and 4050 transitions. [2018-09-19 11:02:22,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 11:02:22,951 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 183 [2018-09-19 11:02:22,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:02:22,963 INFO L225 Difference]: With dead ends: 2749 [2018-09-19 11:02:22,963 INFO L226 Difference]: Without dead ends: 1999 [2018-09-19 11:02:22,967 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 191 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-19 11:02:22,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2018-09-19 11:02:23,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1450. [2018-09-19 11:02:23,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1450 states. [2018-09-19 11:02:23,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 1815 transitions. [2018-09-19 11:02:23,028 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 1815 transitions. Word has length 183 [2018-09-19 11:02:23,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:02:23,029 INFO L480 AbstractCegarLoop]: Abstraction has 1450 states and 1815 transitions. [2018-09-19 11:02:23,029 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 11:02:23,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 1815 transitions. [2018-09-19 11:02:23,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2018-09-19 11:02:23,035 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:02:23,036 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 11:02:23,036 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:02:23,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1784638616, now seen corresponding path program 1 times [2018-09-19 11:02:23,037 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:02:23,037 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 296 with the following transitions: [2018-09-19 11:02:23,038 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 11:02:23,047 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:02:23,047 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:02:34,597 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:02:34,597 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 11:02:34,605 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:02:35,943 INFO L232 lantSequenceWeakener]: Weakened 293 states. On average, predicates are now at 77.9% of their original sizes. [2018-09-19 11:02:35,944 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:02:36,363 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:02:36,363 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:02:36,363 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 11:02:36,363 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:02:36,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 11:02:36,364 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 11:02:36,365 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 11:02:36,365 INFO L87 Difference]: Start difference. First operand 1450 states and 1815 transitions. Second operand 13 states. [2018-09-19 11:02:52,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:02:52,213 INFO L93 Difference]: Finished difference Result 2897 states and 3954 transitions. [2018-09-19 11:02:52,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 11:02:52,218 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 295 [2018-09-19 11:02:52,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:02:52,228 INFO L225 Difference]: With dead ends: 2897 [2018-09-19 11:02:52,229 INFO L226 Difference]: Without dead ends: 1793 [2018-09-19 11:02:52,233 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 305 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2018-09-19 11:02:52,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1793 states. [2018-09-19 11:02:52,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1793 to 1790. [2018-09-19 11:02:52,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1790 states. [2018-09-19 11:02:52,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1790 states to 1790 states and 2172 transitions. [2018-09-19 11:02:52,291 INFO L78 Accepts]: Start accepts. Automaton has 1790 states and 2172 transitions. Word has length 295 [2018-09-19 11:02:52,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:02:52,292 INFO L480 AbstractCegarLoop]: Abstraction has 1790 states and 2172 transitions. [2018-09-19 11:02:52,292 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 11:02:52,292 INFO L276 IsEmpty]: Start isEmpty. Operand 1790 states and 2172 transitions. [2018-09-19 11:02:52,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2018-09-19 11:02:52,298 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:02:52,298 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 11:02:52,299 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:02:52,299 INFO L82 PathProgramCache]: Analyzing trace with hash 317956088, now seen corresponding path program 1 times [2018-09-19 11:02:52,299 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:02:52,299 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 304 with the following transitions: [2018-09-19 11:02:52,300 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 11:02:52,308 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:02:52,309 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:03:09,061 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:03:09,061 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 11:03:09,070 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:03:10,309 INFO L232 lantSequenceWeakener]: Weakened 301 states. On average, predicates are now at 77.89% of their original sizes. [2018-09-19 11:03:10,310 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:03:10,736 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:03:10,736 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:03:10,736 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 11:03:10,736 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:03:10,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 11:03:10,737 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 11:03:10,737 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 11:03:10,738 INFO L87 Difference]: Start difference. First operand 1790 states and 2172 transitions. Second operand 14 states. [2018-09-19 11:03:29,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:03:29,713 INFO L93 Difference]: Finished difference Result 3242 states and 4318 transitions. [2018-09-19 11:03:29,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 11:03:29,715 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 303 [2018-09-19 11:03:29,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:03:29,727 INFO L225 Difference]: With dead ends: 3242 [2018-09-19 11:03:29,727 INFO L226 Difference]: Without dead ends: 2138 [2018-09-19 11:03:29,732 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 11:03:29,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2138 states. [2018-09-19 11:03:29,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2138 to 2132. [2018-09-19 11:03:29,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2132 states. [2018-09-19 11:03:29,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2132 states to 2132 states and 2533 transitions. [2018-09-19 11:03:29,807 INFO L78 Accepts]: Start accepts. Automaton has 2132 states and 2533 transitions. Word has length 303 [2018-09-19 11:03:29,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:03:29,807 INFO L480 AbstractCegarLoop]: Abstraction has 2132 states and 2533 transitions. [2018-09-19 11:03:29,808 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 11:03:29,808 INFO L276 IsEmpty]: Start isEmpty. Operand 2132 states and 2533 transitions. [2018-09-19 11:03:29,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2018-09-19 11:03:29,817 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:03:29,818 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 11:03:29,818 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:03:29,818 INFO L82 PathProgramCache]: Analyzing trace with hash 1764350533, now seen corresponding path program 1 times [2018-09-19 11:03:29,819 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:03:29,819 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 388 with the following transitions: [2018-09-19 11:03:29,820 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 11:03:29,827 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:03:29,828 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:03:31,598 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:03:52,535 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:03:52,535 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 11:03:52,543 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:03:54,675 INFO L232 lantSequenceWeakener]: Weakened 385 states. On average, predicates are now at 77.78% of their original sizes. [2018-09-19 11:03:54,676 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:03:54,982 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:03:54,983 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:03:54,983 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 11:03:54,983 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:03:54,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 11:03:54,984 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 11:03:54,985 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 11:03:54,985 INFO L87 Difference]: Start difference. First operand 2132 states and 2533 transitions. Second operand 11 states. [2018-09-19 11:04:12,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:04:12,127 INFO L93 Difference]: Finished difference Result 4495 states and 5901 transitions. [2018-09-19 11:04:12,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 11:04:12,128 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 387 [2018-09-19 11:04:12,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:04:12,142 INFO L225 Difference]: With dead ends: 4495 [2018-09-19 11:04:12,142 INFO L226 Difference]: Without dead ends: 3049 [2018-09-19 11:04:12,148 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 397 GetRequests, 377 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2018-09-19 11:04:12,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3049 states. [2018-09-19 11:04:12,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3049 to 2489. [2018-09-19 11:04:12,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2489 states. [2018-09-19 11:04:12,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2489 states to 2489 states and 2917 transitions. [2018-09-19 11:04:12,225 INFO L78 Accepts]: Start accepts. Automaton has 2489 states and 2917 transitions. Word has length 387 [2018-09-19 11:04:12,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:04:12,226 INFO L480 AbstractCegarLoop]: Abstraction has 2489 states and 2917 transitions. [2018-09-19 11:04:12,227 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 11:04:12,227 INFO L276 IsEmpty]: Start isEmpty. Operand 2489 states and 2917 transitions. [2018-09-19 11:04:12,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2018-09-19 11:04:12,236 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:04:12,236 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 11:04:12,237 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:04:12,237 INFO L82 PathProgramCache]: Analyzing trace with hash -1630028316, now seen corresponding path program 1 times [2018-09-19 11:04:12,237 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:04:12,237 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 405 with the following transitions: [2018-09-19 11:04:12,238 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 11:04:12,244 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:04:12,244 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:04:19,338 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:04:34,676 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:04:34,676 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 11:04:34,685 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:04:36,790 INFO L232 lantSequenceWeakener]: Weakened 402 states. On average, predicates are now at 77.75% of their original sizes. [2018-09-19 11:04:36,790 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:04:37,259 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:04:37,260 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:04:37,260 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 11:04:37,260 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:04:37,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 11:04:37,261 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 11:04:37,261 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 11:04:37,261 INFO L87 Difference]: Start difference. First operand 2489 states and 2917 transitions. Second operand 13 states. [2018-09-19 11:04:52,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:04:52,839 INFO L93 Difference]: Finished difference Result 4647 states and 5816 transitions. [2018-09-19 11:04:52,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 11:04:52,842 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 404 [2018-09-19 11:04:52,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:04:52,853 INFO L225 Difference]: With dead ends: 4647 [2018-09-19 11:04:52,853 INFO L226 Difference]: Without dead ends: 2844 [2018-09-19 11:04:52,858 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 11:04:52,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states. [2018-09-19 11:04:52,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 2833. [2018-09-19 11:04:52,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2833 states. [2018-09-19 11:04:52,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2833 states to 2833 states and 3297 transitions. [2018-09-19 11:04:52,941 INFO L78 Accepts]: Start accepts. Automaton has 2833 states and 3297 transitions. Word has length 404 [2018-09-19 11:04:52,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:04:52,942 INFO L480 AbstractCegarLoop]: Abstraction has 2833 states and 3297 transitions. [2018-09-19 11:04:52,942 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 11:04:52,942 INFO L276 IsEmpty]: Start isEmpty. Operand 2833 states and 3297 transitions. [2018-09-19 11:04:52,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2018-09-19 11:04:52,952 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:04:52,953 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 11:04:52,953 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:04:52,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1705603789, now seen corresponding path program 1 times [2018-09-19 11:04:52,953 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:04:52,954 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 424 with the following transitions: [2018-09-19 11:04:52,954 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 11:04:52,961 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:04:52,961 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:04:55,666 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:05:16,343 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:05:16,344 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 11:05:16,352 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:05:18,000 INFO L232 lantSequenceWeakener]: Weakened 421 states. On average, predicates are now at 77.73% of their original sizes. [2018-09-19 11:05:18,000 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:05:18,289 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:05:18,290 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:05:18,290 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 11:05:18,290 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:05:18,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 11:05:18,291 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 11:05:18,291 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 11:05:18,291 INFO L87 Difference]: Start difference. First operand 2833 states and 3297 transitions. Second operand 11 states. Received shutdown request... [2018-09-19 11:05:25,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 11:05:25,506 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 11:05:25,512 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 11:05:25,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 11:05:25 BoogieIcfgContainer [2018-09-19 11:05:25,512 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 11:05:25,513 INFO L168 Benchmark]: Toolchain (without parser) took 256296.07 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 2.4 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-09-19 11:05:25,515 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 11:05:25,516 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1242.80 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 11:05:25,516 INFO L168 Benchmark]: Boogie Procedure Inliner took 220.06 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 11:05:25,517 INFO L168 Benchmark]: Boogie Preprocessor took 599.03 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 804.3 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -960.4 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. [2018-09-19 11:05:25,518 INFO L168 Benchmark]: RCFGBuilder took 6244.25 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 255.2 MB). Peak memory consumption was 255.2 MB. Max. memory is 7.1 GB. [2018-09-19 11:05:25,519 INFO L168 Benchmark]: TraceAbstraction took 247981.74 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -428.7 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-09-19 11:05:25,524 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 1242.80 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 220.06 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 599.03 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 804.3 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -960.4 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6244.25 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 255.2 MB). Peak memory consumption was 255.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 247981.74 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -428.7 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: 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 (1245 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 247.9s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 119.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2815 SDtfs, 14218 SDslu, 3199 SDs, 0 SdLazy, 35459 SolverSat, 3335 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 107.4s Time, PredicateUnifierStatistics: 16 DeclaredPredicates, 2262 GetRequests, 2115 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 558 ImplicationChecksByTransitivity, 6.1s 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, 112.1s AbstIntTime, 8 AbstIntIterations, 8 AbstIntStrong, 0.9963866674370778 AbsIntWeakeningRatio, 0.07857469164001828 AbsIntAvgWeakeningVarsNumRemoved, 904.8250342622202 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_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_11-05-25-538.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label32_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_11-05-25-538.csv Completed graceful shutdown