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/Problem15_label27_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 10:50:43,197 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 10:50:43,200 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 10:50:43,218 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 10:50:43,218 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 10:50:43,219 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 10:50:43,220 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 10:50:43,222 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 10:50:43,224 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 10:50:43,224 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 10:50:43,225 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 10:50:43,226 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 10:50:43,227 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 10:50:43,228 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 10:50:43,230 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 10:50:43,231 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 10:50:43,233 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 10:50:43,235 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 10:50:43,239 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 10:50:43,241 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 10:50:43,246 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 10:50:43,247 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 10:50:43,252 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 10:50:43,252 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 10:50:43,252 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 10:50:43,253 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 10:50:43,257 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 10:50:43,258 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 10:50:43,259 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 10:50:43,260 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 10:50:43,260 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 10:50:43,261 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 10:50:43,261 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 10:50:43,261 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 10:50:43,262 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 10:50:43,263 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 10:50:43,263 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 10:50:43,278 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 10:50:43,279 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 10:50:43,279 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 10:50:43,280 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 10:50:43,280 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 10:50:43,280 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 10:50:43,280 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 10:50:43,280 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 10:50:43,281 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 10:50:43,281 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 10:50:43,281 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 10:50:43,281 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 10:50:43,281 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 10:50:43,282 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 10:50:43,282 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 10:50:43,282 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 10:50:43,283 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 10:50:43,283 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 10:50:43,283 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 10:50:43,283 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 10:50:43,284 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 10:50:43,284 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 10:50:43,284 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 10:50:43,284 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 10:50:43,284 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 10:50:43,285 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 10:50:43,285 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 10:50:43,285 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 10:50:43,285 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 10:50:43,285 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 10:50:43,286 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 10:50:43,286 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 10:50:43,286 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 10:50:43,286 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 10:50:43,286 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 10:50:43,346 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 10:50:43,359 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 10:50:43,365 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 10:50:43,367 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 10:50:43,367 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 10:50:43,368 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label27_true-unreach-call.c [2018-09-19 10:50:43,729 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b338146e2/aab8bc2cf9704db89d4b392dbc1f68ff/FLAGcfe55f090 [2018-09-19 10:50:44,153 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 10:50:44,154 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label27_true-unreach-call.c [2018-09-19 10:50:44,178 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b338146e2/aab8bc2cf9704db89d4b392dbc1f68ff/FLAGcfe55f090 [2018-09-19 10:50:44,195 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b338146e2/aab8bc2cf9704db89d4b392dbc1f68ff [2018-09-19 10:50:44,208 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 10:50:44,212 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 10:50:44,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 10:50:44,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 10:50:44,221 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 10:50:44,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 10:50:44" (1/1) ... [2018-09-19 10:50:44,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68a2763a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:50:44, skipping insertion in model container [2018-09-19 10:50:44,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 10:50:44" (1/1) ... [2018-09-19 10:50:44,239 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 10:50:45,130 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 10:50:45,151 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 10:50:45,426 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 10:50:45,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:50:45 WrapperNode [2018-09-19 10:50:45,563 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 10:50:45,564 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 10:50:45,564 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 10:50:45,564 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 10:50:45,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:50:45" (1/1) ... [2018-09-19 10:50:45,636 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:50:45" (1/1) ... [2018-09-19 10:50:45,810 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 10:50:45,811 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 10:50:45,811 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 10:50:45,811 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 10:50:46,276 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:50:45" (1/1) ... [2018-09-19 10:50:46,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:50:45" (1/1) ... [2018-09-19 10:50:46,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:50:45" (1/1) ... [2018-09-19 10:50:46,292 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:50:45" (1/1) ... [2018-09-19 10:50:46,355 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:50:45" (1/1) ... [2018-09-19 10:50:46,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:50:45" (1/1) ... [2018-09-19 10:50:46,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:50:45" (1/1) ... [2018-09-19 10:50:46,420 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 10:50:46,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 10:50:46,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 10:50:46,423 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 10:50:46,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:50:45" (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 10:50:46,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 10:50:46,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 10:50:46,499 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 10:50:46,500 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 10:50:46,500 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 10:50:46,500 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 10:50:46,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 10:50:46,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 10:50:46,501 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 10:50:46,501 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 10:50:54,898 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 10:50:54,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 10:50:54 BoogieIcfgContainer [2018-09-19 10:50:54,899 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 10:50:54,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 10:50:54,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 10:50:54,907 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 10:50:54,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 10:50:44" (1/3) ... [2018-09-19 10:50:54,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c8d581e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 10:50:54, skipping insertion in model container [2018-09-19 10:50:54,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:50:45" (2/3) ... [2018-09-19 10:50:54,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c8d581e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 10:50:54, skipping insertion in model container [2018-09-19 10:50:54,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 10:50:54" (3/3) ... [2018-09-19 10:50:54,912 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label27_true-unreach-call.c [2018-09-19 10:50:54,922 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 10:50:54,930 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 10:50:54,987 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 10:50:54,988 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 10:50:54,988 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 10:50:54,988 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 10:50:54,988 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 10:50:54,988 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 10:50:54,988 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 10:50:54,989 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 10:50:54,989 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 10:50:55,022 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-09-19 10:50:55,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-19 10:50:55,031 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:50:55,033 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] [2018-09-19 10:50:55,035 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:50:55,040 INFO L82 PathProgramCache]: Analyzing trace with hash 923838876, now seen corresponding path program 1 times [2018-09-19 10:50:55,043 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:50:55,044 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 45 with the following transitions: [2018-09-19 10:50:55,047 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [325], [327], [1639], [1643], [1649], [1653], [1662], [1663], [1664], [1666] [2018-09-19 10:50:55,116 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:50:55,117 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:50:56,052 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:50:56,054 INFO L272 AbstractInterpreter]: Visited 43 different actions 43 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 10:50:56,073 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:50:56,643 INFO L232 lantSequenceWeakener]: Weakened 42 states. On average, predicates are now at 80.26% of their original sizes. [2018-09-19 10:50:56,644 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:50:56,930 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:50:56,931 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:50:56,932 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 10:50:56,932 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:50:56,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 10:50:56,945 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 10:50:56,946 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 10:50:56,948 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 6 states. [2018-09-19 10:51:04,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:51:04,563 INFO L93 Difference]: Finished difference Result 1184 states and 2139 transitions. [2018-09-19 10:51:04,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 10:51:04,567 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2018-09-19 10:51:04,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:51:04,591 INFO L225 Difference]: With dead ends: 1184 [2018-09-19 10:51:04,591 INFO L226 Difference]: Without dead ends: 744 [2018-09-19 10:51:04,601 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 10:51:04,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-09-19 10:51:04,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 742. [2018-09-19 10:51:04,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2018-09-19 10:51:04,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1072 transitions. [2018-09-19 10:51:04,705 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1072 transitions. Word has length 44 [2018-09-19 10:51:04,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:51:04,706 INFO L480 AbstractCegarLoop]: Abstraction has 742 states and 1072 transitions. [2018-09-19 10:51:04,706 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 10:51:04,706 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1072 transitions. [2018-09-19 10:51:04,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-09-19 10:51:04,714 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:51:04,714 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:51:04,715 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:51:04,715 INFO L82 PathProgramCache]: Analyzing trace with hash 2084498757, now seen corresponding path program 1 times [2018-09-19 10:51:04,715 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:51:04,715 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 141 with the following transitions: [2018-09-19 10:51:04,716 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [325], [327], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 10:51:04,734 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:51:04,734 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:51:07,020 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:51:11,156 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:51:11,157 INFO L272 AbstractInterpreter]: Visited 103 different actions 296 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 10:51:11,167 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:51:12,002 INFO L232 lantSequenceWeakener]: Weakened 138 states. On average, predicates are now at 78.25% of their original sizes. [2018-09-19 10:51:12,002 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:51:12,794 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:51:12,795 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:51:12,795 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 10:51:12,795 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:51:12,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 10:51:12,797 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 10:51:12,797 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 10:51:12,798 INFO L87 Difference]: Start difference. First operand 742 states and 1072 transitions. Second operand 13 states. [2018-09-19 10:51:33,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:51:33,018 INFO L93 Difference]: Finished difference Result 2081 states and 3617 transitions. [2018-09-19 10:51:33,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 10:51:33,019 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 140 [2018-09-19 10:51:33,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:51:33,031 INFO L225 Difference]: With dead ends: 2081 [2018-09-19 10:51:33,031 INFO L226 Difference]: Without dead ends: 1653 [2018-09-19 10:51:33,036 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 151 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2018-09-19 10:51:33,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states. [2018-09-19 10:51:33,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 1366. [2018-09-19 10:51:33,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1366 states. [2018-09-19 10:51:33,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 1727 transitions. [2018-09-19 10:51:33,112 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 1727 transitions. Word has length 140 [2018-09-19 10:51:33,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:51:33,114 INFO L480 AbstractCegarLoop]: Abstraction has 1366 states and 1727 transitions. [2018-09-19 10:51:33,114 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 10:51:33,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 1727 transitions. [2018-09-19 10:51:33,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2018-09-19 10:51:33,123 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:51:33,124 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:51:33,124 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:51:33,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1610865048, now seen corresponding path program 1 times [2018-09-19 10:51:33,125 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:51:33,125 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 283 with the following transitions: [2018-09-19 10:51:33,126 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [325], [327], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1378], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 10:51:33,139 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:51:33,139 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:51:39,215 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:51:51,487 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:51:51,487 INFO L272 AbstractInterpreter]: Visited 245 different actions 722 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 10:51:51,525 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:51:53,256 INFO L232 lantSequenceWeakener]: Weakened 280 states. On average, predicates are now at 77.75% of their original sizes. [2018-09-19 10:51:53,256 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:51:53,773 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:51:53,773 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:51:53,774 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 10:51:53,774 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:51:53,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 10:51:53,776 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 10:51:53,776 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 10:51:53,777 INFO L87 Difference]: Start difference. First operand 1366 states and 1727 transitions. Second operand 13 states. [2018-09-19 10:52:09,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:52:09,398 INFO L93 Difference]: Finished difference Result 2509 states and 3879 transitions. [2018-09-19 10:52:09,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 10:52:09,399 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 282 [2018-09-19 10:52:09,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:52:09,412 INFO L225 Difference]: With dead ends: 2509 [2018-09-19 10:52:09,412 INFO L226 Difference]: Without dead ends: 2081 [2018-09-19 10:52:09,415 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 294 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=146, Invalid=504, Unknown=0, NotChecked=0, Total=650 [2018-09-19 10:52:09,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2081 states. [2018-09-19 10:52:09,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2081 to 1682. [2018-09-19 10:52:09,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1682 states. [2018-09-19 10:52:09,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1682 states to 1682 states and 2057 transitions. [2018-09-19 10:52:09,475 INFO L78 Accepts]: Start accepts. Automaton has 1682 states and 2057 transitions. Word has length 282 [2018-09-19 10:52:09,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:52:09,476 INFO L480 AbstractCegarLoop]: Abstraction has 1682 states and 2057 transitions. [2018-09-19 10:52:09,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 10:52:09,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1682 states and 2057 transitions. [2018-09-19 10:52:09,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2018-09-19 10:52:09,484 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:52:09,484 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:52:09,485 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:52:09,485 INFO L82 PathProgramCache]: Analyzing trace with hash 2062550890, now seen corresponding path program 1 times [2018-09-19 10:52:09,485 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:52:09,485 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 320 with the following transitions: [2018-09-19 10:52:09,486 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [325], [327], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 10:52:09,497 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:52:09,497 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:52:16,069 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:52:28,863 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:52:28,864 INFO L272 AbstractInterpreter]: Visited 282 different actions 833 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 10:52:28,871 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:52:30,298 INFO L232 lantSequenceWeakener]: Weakened 317 states. On average, predicates are now at 77.7% of their original sizes. [2018-09-19 10:52:30,298 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:52:31,591 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:52:31,591 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:52:31,591 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 10:52:31,591 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:52:31,592 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 10:52:31,592 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 10:52:31,593 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 10:52:31,593 INFO L87 Difference]: Start difference. First operand 1682 states and 2057 transitions. Second operand 14 states. [2018-09-19 10:52:44,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:52:44,385 INFO L93 Difference]: Finished difference Result 2605 states and 3783 transitions. [2018-09-19 10:52:44,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 10:52:44,390 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 319 [2018-09-19 10:52:44,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:52:44,400 INFO L225 Difference]: With dead ends: 2605 [2018-09-19 10:52:44,400 INFO L226 Difference]: Without dead ends: 2177 [2018-09-19 10:52:44,403 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 331 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=171, Invalid=531, Unknown=0, NotChecked=0, Total=702 [2018-09-19 10:52:44,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2177 states. [2018-09-19 10:52:44,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2177 to 1993. [2018-09-19 10:52:44,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1993 states. [2018-09-19 10:52:44,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1993 states to 1993 states and 2383 transitions. [2018-09-19 10:52:44,460 INFO L78 Accepts]: Start accepts. Automaton has 1993 states and 2383 transitions. Word has length 319 [2018-09-19 10:52:44,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:52:44,461 INFO L480 AbstractCegarLoop]: Abstraction has 1993 states and 2383 transitions. [2018-09-19 10:52:44,461 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 10:52:44,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1993 states and 2383 transitions. [2018-09-19 10:52:44,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2018-09-19 10:52:44,467 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:52:44,468 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:52:44,468 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:52:44,468 INFO L82 PathProgramCache]: Analyzing trace with hash -471468878, now seen corresponding path program 1 times [2018-09-19 10:52:44,468 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:52:44,469 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 332 with the following transitions: [2018-09-19 10:52:44,469 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [325], [327], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 10:52:44,477 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:52:44,477 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:52:51,403 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:53:06,048 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:53:06,049 INFO L272 AbstractInterpreter]: Visited 294 different actions 869 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 10:53:06,060 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:53:07,404 INFO L232 lantSequenceWeakener]: Weakened 329 states. On average, predicates are now at 77.68% of their original sizes. [2018-09-19 10:53:07,404 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:53:07,838 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:53:07,839 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:53:07,839 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 10:53:07,839 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:53:07,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 10:53:07,840 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 10:53:07,840 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 10:53:07,840 INFO L87 Difference]: Start difference. First operand 1993 states and 2383 transitions. Second operand 14 states. [2018-09-19 10:53:31,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:53:31,078 INFO L93 Difference]: Finished difference Result 2735 states and 3747 transitions. [2018-09-19 10:53:31,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 10:53:31,079 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 331 [2018-09-19 10:53:31,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:53:31,091 INFO L225 Difference]: With dead ends: 2735 [2018-09-19 10:53:31,091 INFO L226 Difference]: Without dead ends: 2307 [2018-09-19 10:53:31,094 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 343 GetRequests, 318 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 10:53:31,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2307 states. [2018-09-19 10:53:31,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2307 to 2303. [2018-09-19 10:53:31,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2303 states. [2018-09-19 10:53:31,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2303 states to 2303 states and 2712 transitions. [2018-09-19 10:53:31,159 INFO L78 Accepts]: Start accepts. Automaton has 2303 states and 2712 transitions. Word has length 331 [2018-09-19 10:53:31,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:53:31,160 INFO L480 AbstractCegarLoop]: Abstraction has 2303 states and 2712 transitions. [2018-09-19 10:53:31,160 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 10:53:31,160 INFO L276 IsEmpty]: Start isEmpty. Operand 2303 states and 2712 transitions. [2018-09-19 10:53:31,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2018-09-19 10:53:31,169 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:53:31,169 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 10:53:31,169 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:53:31,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1877162623, now seen corresponding path program 1 times [2018-09-19 10:53:31,170 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:53:31,170 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 379 with the following transitions: [2018-09-19 10:53:31,171 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [325], [327], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1378], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 10:53:31,177 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:53:31,177 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:53:32,942 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:54:00,030 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:54:00,030 INFO L272 AbstractInterpreter]: Visited 246 different actions 1215 times. Merged at 7 different actions 29 times. Never widened. Found 6 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 10:54:00,036 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:54:01,892 INFO L232 lantSequenceWeakener]: Weakened 376 states. On average, predicates are now at 77.66% of their original sizes. [2018-09-19 10:54:01,892 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:54:02,555 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:54:02,556 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:54:02,556 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 10:54:02,556 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:54:02,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 10:54:02,557 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 10:54:02,557 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 10:54:02,557 INFO L87 Difference]: Start difference. First operand 2303 states and 2712 transitions. Second operand 12 states. [2018-09-19 10:54:15,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:54:15,250 INFO L93 Difference]: Finished difference Result 3673 states and 5022 transitions. [2018-09-19 10:54:15,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 10:54:15,251 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 378 [2018-09-19 10:54:15,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:54:15,266 INFO L225 Difference]: With dead ends: 3673 [2018-09-19 10:54:15,266 INFO L226 Difference]: Without dead ends: 3245 [2018-09-19 10:54:15,270 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 388 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=114, Invalid=392, Unknown=0, NotChecked=0, Total=506 [2018-09-19 10:54:15,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3245 states. [2018-09-19 10:54:15,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3245 to 2313. [2018-09-19 10:54:15,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2313 states. [2018-09-19 10:54:15,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2313 states to 2313 states and 2722 transitions. [2018-09-19 10:54:15,353 INFO L78 Accepts]: Start accepts. Automaton has 2313 states and 2722 transitions. Word has length 378 [2018-09-19 10:54:15,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:54:15,354 INFO L480 AbstractCegarLoop]: Abstraction has 2313 states and 2722 transitions. [2018-09-19 10:54:15,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 10:54:15,354 INFO L276 IsEmpty]: Start isEmpty. Operand 2313 states and 2722 transitions. [2018-09-19 10:54:15,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2018-09-19 10:54:15,359 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:54:15,359 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 10:54:15,359 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:54:15,360 INFO L82 PathProgramCache]: Analyzing trace with hash -958212707, now seen corresponding path program 1 times [2018-09-19 10:54:15,360 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:54:15,360 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 402 with the following transitions: [2018-09-19 10:54:15,361 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [325], [327], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [566], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 10:54:15,369 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:54:15,369 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:54:22,624 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:54:55,319 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:54:55,319 INFO L272 AbstractInterpreter]: Visited 295 different actions 1458 times. Merged at 7 different actions 27 times. Never widened. Found 5 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 10:54:55,326 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:54:56,992 INFO L232 lantSequenceWeakener]: Weakened 399 states. On average, predicates are now at 77.63% of their original sizes. [2018-09-19 10:54:56,993 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:54:57,334 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:54:57,335 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:54:57,335 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 10:54:57,335 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:54:57,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 10:54:57,336 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 10:54:57,336 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 10:54:57,336 INFO L87 Difference]: Start difference. First operand 2313 states and 2722 transitions. Second operand 12 states. Received shutdown request... [2018-09-19 10:55:00,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-19 10:55:00,730 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 10:55:00,735 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 10:55:00,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 10:55:00 BoogieIcfgContainer [2018-09-19 10:55:00,736 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 10:55:00,736 INFO L168 Benchmark]: Toolchain (without parser) took 256527.90 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 1.7 GB in the end (delta: -259.0 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-09-19 10:55:00,738 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-09-19 10:55:00,739 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1350.15 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. [2018-09-19 10:55:00,740 INFO L168 Benchmark]: Boogie Procedure Inliner took 246.93 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-19 10:55:00,741 INFO L168 Benchmark]: Boogie Preprocessor took 610.86 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 863.5 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. [2018-09-19 10:55:00,742 INFO L168 Benchmark]: RCFGBuilder took 8477.46 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 293.0 MB). Peak memory consumption was 293.0 MB. Max. memory is 7.1 GB. [2018-09-19 10:55:00,742 INFO L168 Benchmark]: TraceAbstraction took 245835.21 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 1.7 GB in the end (delta: 302.0 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-09-19 10:55:00,747 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 1350.15 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 246.93 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 610.86 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 863.5 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8477.46 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 293.0 MB). Peak memory consumption was 293.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 245835.21 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 1.7 GB in the end (delta: 302.0 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 118). Cancelled while BasicCegarLoop was constructing difference of abstraction (2313states) and FLOYD_HOARE automaton (currently 7 states, 12 states before enhancement), while ReachableStatesComputation was computing reachable states (407 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 245.7s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 95.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2791 SDtfs, 14967 SDslu, 2173 SDs, 0 SdLazy, 23621 SolverSat, 2798 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 85.9s Time, PredicateUnifierStatistics: 14 DeclaredPredicates, 1954 GetRequests, 1818 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 6.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2313occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 135.6s AbstIntTime, 7 AbstIntIterations, 7 AbstIntStrong, 0.9964352557446234 AbsIntWeakeningRatio, 0.07733050847457627 AbsIntAvgWeakeningVarsNumRemoved, 903.8808262711865 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 1808 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label27_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_10-55-00-761.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label27_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_10-55-00-761.csv Completed graceful shutdown