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/Problem14_label23_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 12:07:27,129 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 12:07:27,134 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 12:07:27,146 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 12:07:27,147 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 12:07:27,148 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 12:07:27,149 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 12:07:27,153 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 12:07:27,155 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 12:07:27,156 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 12:07:27,157 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 12:07:27,157 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 12:07:27,158 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 12:07:27,159 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 12:07:27,160 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 12:07:27,161 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 12:07:27,162 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 12:07:27,164 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 12:07:27,166 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 12:07:27,167 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 12:07:27,169 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 12:07:27,170 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 12:07:27,172 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 12:07:27,173 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 12:07:27,173 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 12:07:27,174 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 12:07:27,175 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 12:07:27,176 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 12:07:27,176 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 12:07:27,178 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 12:07:27,178 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 12:07:27,179 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 12:07:27,179 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 12:07:27,179 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 12:07:27,180 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 12:07:27,181 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 12:07:27,181 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-15 12:07:27,209 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 12:07:27,210 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 12:07:27,211 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 12:07:27,211 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 12:07:27,211 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 12:07:27,211 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 12:07:27,211 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 12:07:27,212 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 12:07:27,212 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 12:07:27,212 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 12:07:27,212 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 12:07:27,213 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 12:07:27,213 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 12:07:27,213 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 12:07:27,213 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 12:07:27,214 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 12:07:27,214 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 12:07:27,214 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 12:07:27,214 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 12:07:27,214 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 12:07:27,215 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 12:07:27,215 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 12:07:27,215 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 12:07:27,215 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 12:07:27,215 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 12:07:27,216 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 12:07:27,216 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 12:07:27,216 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 12:07:27,217 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 12:07:27,218 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 12:07:27,218 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 12:07:27,218 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 12:07:27,218 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 12:07:27,271 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 12:07:27,286 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 12:07:27,295 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 12:07:27,297 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 12:07:27,297 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 12:07:27,298 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label23_true-unreach-call_false-termination.c [2018-09-15 12:07:27,661 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e93786220/75654e735ec74676b5d08eac0d4b29ac/FLAGd02f0919d [2018-09-15 12:07:27,904 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 12:07:27,905 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label23_true-unreach-call_false-termination.c [2018-09-15 12:07:27,932 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e93786220/75654e735ec74676b5d08eac0d4b29ac/FLAGd02f0919d [2018-09-15 12:07:27,959 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e93786220/75654e735ec74676b5d08eac0d4b29ac [2018-09-15 12:07:27,974 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 12:07:27,978 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 12:07:27,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 12:07:27,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 12:07:27,986 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 12:07:27,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:07:27" (1/1) ... [2018-09-15 12:07:27,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c40084a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:07:27, skipping insertion in model container [2018-09-15 12:07:27,991 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:07:27" (1/1) ... [2018-09-15 12:07:28,002 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 12:07:28,570 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:07:28,589 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 12:07:28,758 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:07:28,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:07:28 WrapperNode [2018-09-15 12:07:28,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 12:07:28,821 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 12:07:28,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 12:07:28,822 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 12:07:28,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:07:28" (1/1) ... [2018-09-15 12:07:28,858 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:07:28" (1/1) ... [2018-09-15 12:07:28,946 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 12:07:28,947 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 12:07:28,947 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 12:07:28,947 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 12:07:29,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:07:28" (1/1) ... [2018-09-15 12:07:29,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:07:28" (1/1) ... [2018-09-15 12:07:29,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:07:28" (1/1) ... [2018-09-15 12:07:29,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:07:28" (1/1) ... [2018-09-15 12:07:29,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:07:28" (1/1) ... [2018-09-15 12:07:29,196 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:07:28" (1/1) ... [2018-09-15 12:07:29,204 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:07:28" (1/1) ... [2018-09-15 12:07:29,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 12:07:29,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 12:07:29,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 12:07:29,217 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 12:07:29,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:07:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 12:07:29,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 12:07:29,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 12:07:29,295 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 12:07:29,295 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 12:07:29,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 12:07:29,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 12:07:29,297 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 12:07:29,297 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 12:07:33,398 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 12:07:33,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:07:33 BoogieIcfgContainer [2018-09-15 12:07:33,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 12:07:33,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 12:07:33,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 12:07:33,405 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 12:07:33,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 12:07:27" (1/3) ... [2018-09-15 12:07:33,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66951f44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:07:33, skipping insertion in model container [2018-09-15 12:07:33,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:07:28" (2/3) ... [2018-09-15 12:07:33,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66951f44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:07:33, skipping insertion in model container [2018-09-15 12:07:33,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:07:33" (3/3) ... [2018-09-15 12:07:33,410 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label23_true-unreach-call_false-termination.c [2018-09-15 12:07:33,422 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 12:07:33,433 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 12:07:33,493 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 12:07:33,494 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 12:07:33,494 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 12:07:33,494 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 12:07:33,494 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 12:07:33,495 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 12:07:33,495 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 12:07:33,495 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 12:07:33,496 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 12:07:33,530 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-09-15 12:07:33,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-09-15 12:07:33,540 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:07:33,541 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] [2018-09-15 12:07:33,542 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:07:33,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1395557711, now seen corresponding path program 1 times [2018-09-15 12:07:33,551 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:07:33,552 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 40 with the following transitions: [2018-09-15 12:07:33,556 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [213], [215], [952], [956], [962], [966], [973], [974], [975], [977] [2018-09-15 12:07:33,621 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:07:33,622 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:07:34,754 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:07:34,757 INFO L272 AbstractInterpreter]: Visited 38 different actions 38 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 12:07:34,778 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:07:35,390 INFO L232 lantSequenceWeakener]: Weakened 37 states. On average, predicates are now at 80.05% of their original sizes. [2018-09-15 12:07:35,390 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:07:35,681 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:07:35,683 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:07:35,684 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 12:07:35,684 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:07:35,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 12:07:35,700 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 12:07:35,702 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 12:07:35,706 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 6 states. [2018-09-15 12:07:39,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:07:39,348 INFO L93 Difference]: Finished difference Result 693 states and 1229 transitions. [2018-09-15 12:07:39,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 12:07:39,354 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2018-09-15 12:07:39,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:07:39,376 INFO L225 Difference]: With dead ends: 693 [2018-09-15 12:07:39,377 INFO L226 Difference]: Without dead ends: 436 [2018-09-15 12:07:39,385 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 12:07:39,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2018-09-15 12:07:39,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 434. [2018-09-15 12:07:39,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-09-15 12:07:39,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 615 transitions. [2018-09-15 12:07:39,472 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 615 transitions. Word has length 39 [2018-09-15 12:07:39,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:07:39,473 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 615 transitions. [2018-09-15 12:07:39,473 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 12:07:39,473 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 615 transitions. [2018-09-15 12:07:39,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-09-15 12:07:39,480 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:07:39,480 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:07:39,481 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:07:39,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1586647837, now seen corresponding path program 1 times [2018-09-15 12:07:39,481 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:07:39,482 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 125 with the following transitions: [2018-09-15 12:07:39,482 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-15 12:07:39,492 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:07:39,492 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:07:46,506 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:07:46,507 INFO L272 AbstractInterpreter]: Visited 92 different actions 177 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:07:46,515 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:07:48,845 INFO L232 lantSequenceWeakener]: Weakened 122 states. On average, predicates are now at 78.22% of their original sizes. [2018-09-15 12:07:48,845 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:07:50,175 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:07:50,176 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:07:50,176 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 12:07:50,176 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:07:50,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 12:07:50,178 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 12:07:50,178 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 12:07:50,178 INFO L87 Difference]: Start difference. First operand 434 states and 615 transitions. Second operand 11 states. [2018-09-15 12:07:59,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:07:59,347 INFO L93 Difference]: Finished difference Result 1051 states and 1763 transitions. [2018-09-15 12:07:59,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-15 12:07:59,348 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 124 [2018-09-15 12:07:59,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:07:59,356 INFO L225 Difference]: With dead ends: 1051 [2018-09-15 12:07:59,356 INFO L226 Difference]: Without dead ends: 806 [2018-09-15 12:07:59,360 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 130 GetRequests, 87 SyntacticMatches, 27 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 12:07:59,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2018-09-15 12:07:59,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 803. [2018-09-15 12:07:59,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2018-09-15 12:07:59,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1002 transitions. [2018-09-15 12:07:59,430 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1002 transitions. Word has length 124 [2018-09-15 12:07:59,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:07:59,431 INFO L480 AbstractCegarLoop]: Abstraction has 803 states and 1002 transitions. [2018-09-15 12:07:59,432 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 12:07:59,432 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1002 transitions. [2018-09-15 12:07:59,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-09-15 12:07:59,436 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:07:59,437 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:07:59,437 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:07:59,438 INFO L82 PathProgramCache]: Analyzing trace with hash -788501065, now seen corresponding path program 1 times [2018-09-15 12:07:59,438 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:07:59,438 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 151 with the following transitions: [2018-09-15 12:07:59,439 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-15 12:07:59,446 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:07:59,447 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:08:13,011 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:08:13,012 INFO L272 AbstractInterpreter]: Visited 118 different actions 230 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:08:13,016 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:08:16,500 INFO L232 lantSequenceWeakener]: Weakened 148 states. On average, predicates are now at 78.05% of their original sizes. [2018-09-15 12:08:16,501 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:08:17,375 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:08:17,375 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:08:17,376 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 12:08:17,376 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:08:17,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 12:08:17,378 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 12:08:17,378 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-15 12:08:17,378 INFO L87 Difference]: Start difference. First operand 803 states and 1002 transitions. Second operand 11 states. [2018-09-15 12:08:24,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:08:24,175 INFO L93 Difference]: Finished difference Result 1236 states and 1786 transitions. [2018-09-15 12:08:24,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 12:08:24,179 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 150 [2018-09-15 12:08:24,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:08:24,186 INFO L225 Difference]: With dead ends: 1236 [2018-09-15 12:08:24,187 INFO L226 Difference]: Without dead ends: 991 [2018-09-15 12:08:24,189 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 157 GetRequests, 113 SyntacticMatches, 27 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2018-09-15 12:08:24,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2018-09-15 12:08:24,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 988. [2018-09-15 12:08:24,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 988 states. [2018-09-15 12:08:24,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 1200 transitions. [2018-09-15 12:08:24,232 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 1200 transitions. Word has length 150 [2018-09-15 12:08:24,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:08:24,233 INFO L480 AbstractCegarLoop]: Abstraction has 988 states and 1200 transitions. [2018-09-15 12:08:24,233 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 12:08:24,233 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1200 transitions. [2018-09-15 12:08:24,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2018-09-15 12:08:24,240 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:08:24,240 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:08:24,241 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:08:24,241 INFO L82 PathProgramCache]: Analyzing trace with hash -9295547, now seen corresponding path program 1 times [2018-09-15 12:08:24,241 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:08:24,242 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 236 with the following transitions: [2018-09-15 12:08:24,242 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-15 12:08:24,247 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:08:24,247 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:08:34,404 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:08:34,404 INFO L272 AbstractInterpreter]: Visited 119 different actions 352 times. Merged at 7 different actions 17 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 12:08:34,409 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:08:35,685 INFO L232 lantSequenceWeakener]: Weakened 233 states. On average, predicates are now at 77.79% of their original sizes. [2018-09-15 12:08:35,685 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:08:36,178 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:08:36,179 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:08:36,179 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-15 12:08:36,179 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:08:36,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-15 12:08:36,180 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-15 12:08:36,181 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2018-09-15 12:08:36,181 INFO L87 Difference]: Start difference. First operand 988 states and 1200 transitions. Second operand 15 states. [2018-09-15 12:08:48,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:08:48,042 INFO L93 Difference]: Finished difference Result 1967 states and 3058 transitions. [2018-09-15 12:08:48,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-15 12:08:48,043 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 235 [2018-09-15 12:08:48,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:08:48,056 INFO L225 Difference]: With dead ends: 1967 [2018-09-15 12:08:48,057 INFO L226 Difference]: Without dead ends: 1722 [2018-09-15 12:08:48,059 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 250 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=208, Invalid=722, Unknown=0, NotChecked=0, Total=930 [2018-09-15 12:08:48,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2018-09-15 12:08:48,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1422. [2018-09-15 12:08:48,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1422 states. [2018-09-15 12:08:48,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 1686 transitions. [2018-09-15 12:08:48,117 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 1686 transitions. Word has length 235 [2018-09-15 12:08:48,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:08:48,118 INFO L480 AbstractCegarLoop]: Abstraction has 1422 states and 1686 transitions. [2018-09-15 12:08:48,118 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-15 12:08:48,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 1686 transitions. [2018-09-15 12:08:48,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2018-09-15 12:08:48,125 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:08:48,126 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-15 12:08:48,126 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:08:48,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1364256258, now seen corresponding path program 1 times [2018-09-15 12:08:48,127 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:08:48,127 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 261 with the following transitions: [2018-09-15 12:08:48,127 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-15 12:08:48,144 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:08:48,144 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:09:01,416 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:09:19,579 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:09:19,579 INFO L272 AbstractInterpreter]: Visited 119 different actions 465 times. Merged at 7 different actions 22 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 12:09:19,584 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:09:22,890 INFO L232 lantSequenceWeakener]: Weakened 258 states. On average, predicates are now at 77.76% of their original sizes. [2018-09-15 12:09:22,891 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:09:23,660 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:09:23,661 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:09:23,661 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 12:09:23,661 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:09:23,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 12:09:23,662 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 12:09:23,662 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-15 12:09:23,663 INFO L87 Difference]: Start difference. First operand 1422 states and 1686 transitions. Second operand 11 states. [2018-09-15 12:09:29,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:09:29,362 INFO L93 Difference]: Finished difference Result 1861 states and 2476 transitions. [2018-09-15 12:09:29,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-15 12:09:29,363 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 260 [2018-09-15 12:09:29,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:09:29,373 INFO L225 Difference]: With dead ends: 1861 [2018-09-15 12:09:29,373 INFO L226 Difference]: Without dead ends: 1616 [2018-09-15 12:09:29,375 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 268 GetRequests, 223 SyntacticMatches, 27 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2018-09-15 12:09:29,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2018-09-15 12:09:29,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1609. [2018-09-15 12:09:29,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1609 states. [2018-09-15 12:09:29,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 1904 transitions. [2018-09-15 12:09:29,431 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 1904 transitions. Word has length 260 [2018-09-15 12:09:29,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:09:29,432 INFO L480 AbstractCegarLoop]: Abstraction has 1609 states and 1904 transitions. [2018-09-15 12:09:29,432 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 12:09:29,433 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 1904 transitions. [2018-09-15 12:09:29,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2018-09-15 12:09:29,440 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:09:29,440 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:09:29,441 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:09:29,441 INFO L82 PathProgramCache]: Analyzing trace with hash -1727944499, now seen corresponding path program 1 times [2018-09-15 12:09:29,441 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:09:29,442 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 339 with the following transitions: [2018-09-15 12:09:29,442 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [526], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-15 12:09:29,446 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:09:29,447 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:09:41,622 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:10:01,152 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:10:01,152 INFO L272 AbstractInterpreter]: Visited 120 different actions 710 times. Merged at 8 different actions 45 times. Widened at 1 different actions 1 times. Found 10 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 12:10:01,156 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:10:03,311 INFO L232 lantSequenceWeakener]: Weakened 336 states. On average, predicates are now at 77.66% of their original sizes. [2018-09-15 12:10:03,311 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:10:03,610 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:10:03,611 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:10:03,611 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 12:10:03,611 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:10:03,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 12:10:03,612 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 12:10:03,612 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-15 12:10:03,612 INFO L87 Difference]: Start difference. First operand 1609 states and 1904 transitions. Second operand 10 states. [2018-09-15 12:10:11,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:10:11,910 INFO L93 Difference]: Finished difference Result 2266 states and 2945 transitions. [2018-09-15 12:10:11,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-15 12:10:11,910 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 338 [2018-09-15 12:10:11,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:10:11,920 INFO L225 Difference]: With dead ends: 2266 [2018-09-15 12:10:11,920 INFO L226 Difference]: Without dead ends: 1834 [2018-09-15 12:10:11,923 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 345 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 12:10:11,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1834 states. [2018-09-15 12:10:11,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1834 to 1816. [2018-09-15 12:10:11,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1816 states. [2018-09-15 12:10:11,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1816 states to 1816 states and 2160 transitions. [2018-09-15 12:10:11,991 INFO L78 Accepts]: Start accepts. Automaton has 1816 states and 2160 transitions. Word has length 338 [2018-09-15 12:10:11,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:10:11,992 INFO L480 AbstractCegarLoop]: Abstraction has 1816 states and 2160 transitions. [2018-09-15 12:10:11,992 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-15 12:10:11,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1816 states and 2160 transitions. [2018-09-15 12:10:12,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2018-09-15 12:10:12,001 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:10:12,001 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:10:12,002 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:10:12,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1217125141, now seen corresponding path program 1 times [2018-09-15 12:10:12,002 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:10:12,003 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 343 with the following transitions: [2018-09-15 12:10:12,003 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-15 12:10:12,007 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:10:12,007 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:10:24,528 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:10:53,907 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:10:53,908 INFO L272 AbstractInterpreter]: Visited 120 different actions 948 times. Merged at 8 different actions 65 times. Widened at 1 different actions 3 times. Found 14 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 12:10:53,915 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:10:55,813 INFO L232 lantSequenceWeakener]: Weakened 340 states. On average, predicates are now at 77.66% of their original sizes. [2018-09-15 12:10:55,813 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:10:56,072 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:10:56,072 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:10:56,073 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 12:10:56,073 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:10:56,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 12:10:56,073 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 12:10:56,073 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-15 12:10:56,074 INFO L87 Difference]: Start difference. First operand 1816 states and 2160 transitions. Second operand 10 states. [2018-09-15 12:11:03,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:11:03,393 INFO L93 Difference]: Finished difference Result 2648 states and 3429 transitions. [2018-09-15 12:11:03,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-15 12:11:03,394 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 342 [2018-09-15 12:11:03,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:11:03,402 INFO L225 Difference]: With dead ends: 2648 [2018-09-15 12:11:03,403 INFO L226 Difference]: Without dead ends: 2011 [2018-09-15 12:11:03,405 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 349 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 12:11:03,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2011 states. [2018-09-15 12:11:03,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2011 to 2001. [2018-09-15 12:11:03,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2001 states. [2018-09-15 12:11:03,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2001 states to 2001 states and 2378 transitions. [2018-09-15 12:11:03,468 INFO L78 Accepts]: Start accepts. Automaton has 2001 states and 2378 transitions. Word has length 342 [2018-09-15 12:11:03,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:11:03,468 INFO L480 AbstractCegarLoop]: Abstraction has 2001 states and 2378 transitions. [2018-09-15 12:11:03,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-15 12:11:03,469 INFO L276 IsEmpty]: Start isEmpty. Operand 2001 states and 2378 transitions. [2018-09-15 12:11:03,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2018-09-15 12:11:03,474 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:11:03,474 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:11:03,474 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:11:03,475 INFO L82 PathProgramCache]: Analyzing trace with hash 184345782, now seen corresponding path program 1 times [2018-09-15 12:11:03,475 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:11:03,475 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 364 with the following transitions: [2018-09-15 12:11:03,475 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [626], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-15 12:11:03,478 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:11:03,478 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:11:15,139 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:11:33,595 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:11:33,596 INFO L272 AbstractInterpreter]: Visited 120 different actions 710 times. Merged at 8 different actions 45 times. Widened at 1 different actions 1 times. Found 10 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 12:11:33,602 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... [2018-09-15 12:11:36,161 INFO L232 lantSequenceWeakener]: Weakened 361 states. On average, predicates are now at 77.63% of their original sizes. [2018-09-15 12:11:36,161 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:11:36,172 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-15 12:11:36,177 WARN L206 ceAbstractionStarter]: Timeout [2018-09-15 12:11:36,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 12:11:36 BoogieIcfgContainer [2018-09-15 12:11:36,178 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 12:11:36,179 INFO L168 Benchmark]: Toolchain (without parser) took 248203.30 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 3.7 GB in the end (delta: -2.2 GB). Peak memory consumption was 435.2 MB. Max. memory is 7.1 GB. [2018-09-15 12:11:36,181 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 12:11:36,181 INFO L168 Benchmark]: CACSL2BoogieTranslator took 841.64 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-09-15 12:11:36,182 INFO L168 Benchmark]: Boogie Procedure Inliner took 125.00 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-15 12:11:36,183 INFO L168 Benchmark]: Boogie Preprocessor took 269.98 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 767.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -868.7 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. [2018-09-15 12:11:36,184 INFO L168 Benchmark]: RCFGBuilder took 4182.80 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 124.2 MB). Peak memory consumption was 124.2 MB. Max. memory is 7.1 GB. [2018-09-15 12:11:36,184 INFO L168 Benchmark]: TraceAbstraction took 242777.00 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 348.7 MB. Max. memory is 7.1 GB. [2018-09-15 12:11:36,190 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 841.64 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 125.00 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 269.98 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 767.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -868.7 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4182.80 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 124.2 MB). Peak memory consumption was 124.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 242777.00 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 348.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 100]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 100). Cancelled while BasicCegarLoop was analyzing trace of length 364 with TraceHistMax 4, while AbsIntCurrentIteration was generating AI predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 3 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 242.6s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 52.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1637 SDtfs, 7840 SDslu, 1986 SDs, 0 SdLazy, 13729 SolverSat, 2093 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 45.9s Time, PredicateUnifierStatistics: 14 DeclaredPredicates, 1537 GetRequests, 1340 SyntacticMatches, 81 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1007 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2001occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 167.2s AbstIntTime, 8 AbstIntIterations, 8 AbstIntStrong, 0.9950153234436887 AbsIntWeakeningRatio, 0.10960390667390124 AbsIntAvgWeakeningVarsNumRemoved, 643.8225718936517 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 343 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/Problem14_label23_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_12-11-36-203.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label23_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_12-11-36-203.csv Completed graceful shutdown