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/Problem02_label14_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 01:47:43,065 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 01:47:43,068 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 01:47:43,082 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 01:47:43,082 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 01:47:43,083 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 01:47:43,084 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 01:47:43,086 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 01:47:43,088 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 01:47:43,089 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 01:47:43,090 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 01:47:43,090 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 01:47:43,091 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 01:47:43,092 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 01:47:43,093 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 01:47:43,094 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 01:47:43,095 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 01:47:43,097 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 01:47:43,099 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 01:47:43,101 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 01:47:43,102 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 01:47:43,103 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 01:47:43,107 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 01:47:43,120 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-19 01:47:43,145 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 01:47:43,145 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 01:47:43,146 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 01:47:43,147 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 01:47:43,147 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 01:47:43,147 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 01:47:43,147 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 01:47:43,147 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 01:47:43,148 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 01:47:43,148 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 01:47:43,148 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 01:47:43,148 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 01:47:43,152 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 01:47:43,152 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 01:47:43,153 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 01:47:43,153 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 01:47:43,153 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 01:47:43,153 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 01:47:43,153 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 01:47:43,155 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 01:47:43,155 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 01:47:43,156 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 01:47:43,156 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 01:47:43,156 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 01:47:43,156 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 01:47:43,157 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 01:47:43,157 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 01:47:43,157 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 01:47:43,157 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 01:47:43,157 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 01:47:43,158 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 01:47:43,158 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 01:47:43,158 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 01:47:43,158 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 01:47:43,218 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 01:47:43,231 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 01:47:43,236 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 01:47:43,238 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 01:47:43,238 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 01:47:43,239 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label14_true-unreach-call_false-termination.c [2018-09-19 01:47:43,605 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3afcb3f7f/13d553d6102d4c3684fc6fb159342f0c/FLAGb09256794 [2018-09-19 01:47:44,016 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 01:47:44,019 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label14_true-unreach-call_false-termination.c [2018-09-19 01:47:44,039 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3afcb3f7f/13d553d6102d4c3684fc6fb159342f0c/FLAGb09256794 [2018-09-19 01:47:44,064 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3afcb3f7f/13d553d6102d4c3684fc6fb159342f0c [2018-09-19 01:47:44,079 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 01:47:44,085 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 01:47:44,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 01:47:44,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 01:47:44,099 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 01:47:44,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:47:44" (1/1) ... [2018-09-19 01:47:44,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40c5c827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:47:44, skipping insertion in model container [2018-09-19 01:47:44,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:47:44" (1/1) ... [2018-09-19 01:47:44,120 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 01:47:44,636 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:47:44,667 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 01:47:44,791 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:47:44,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:47:44 WrapperNode [2018-09-19 01:47:44,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 01:47:44,843 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 01:47:44,843 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 01:47:44,843 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 01:47:44,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:47:44" (1/1) ... [2018-09-19 01:47:44,890 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:47:44" (1/1) ... [2018-09-19 01:47:44,953 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 01:47:44,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 01:47:44,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 01:47:44,954 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 01:47:45,113 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:47:44" (1/1) ... [2018-09-19 01:47:45,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:47:44" (1/1) ... [2018-09-19 01:47:45,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:47:44" (1/1) ... [2018-09-19 01:47:45,126 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:47:44" (1/1) ... [2018-09-19 01:47:45,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:47:44" (1/1) ... [2018-09-19 01:47:45,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:47:44" (1/1) ... [2018-09-19 01:47:45,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:47:44" (1/1) ... [2018-09-19 01:47:45,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 01:47:45,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 01:47:45,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 01:47:45,227 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 01:47:45,228 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:47:44" (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 01:47:45,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 01:47:45,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 01:47:45,313 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 01:47:45,313 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 01:47:45,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 01:47:45,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 01:47:45,315 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 01:47:45,315 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 01:47:49,206 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 01:47:49,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:47:49 BoogieIcfgContainer [2018-09-19 01:47:49,208 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 01:47:49,213 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 01:47:49,213 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 01:47:49,218 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 01:47:49,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 01:47:44" (1/3) ... [2018-09-19 01:47:49,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c97f18e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:47:49, skipping insertion in model container [2018-09-19 01:47:49,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:47:44" (2/3) ... [2018-09-19 01:47:49,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c97f18e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:47:49, skipping insertion in model container [2018-09-19 01:47:49,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:47:49" (3/3) ... [2018-09-19 01:47:49,223 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label14_true-unreach-call_false-termination.c [2018-09-19 01:47:49,235 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 01:47:49,249 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 01:47:49,326 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 01:47:49,327 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 01:47:49,328 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 01:47:49,328 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 01:47:49,328 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 01:47:49,328 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 01:47:49,328 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 01:47:49,328 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 01:47:49,329 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 01:47:49,381 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-09-19 01:47:49,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-09-19 01:47:49,405 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:47:49,407 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:47:49,408 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:47:49,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1648799080, now seen corresponding path program 1 times [2018-09-19 01:47:49,418 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:47:49,420 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 125 with the following transitions: [2018-09-19 01:47:49,424 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [663], [665], [867], [871], [877], [881], [888], [889], [890], [892] [2018-09-19 01:47:49,532 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:47:49,533 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:48:06,952 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:48:06,954 INFO L272 AbstractInterpreter]: Visited 123 different actions 123 times. Never merged. Never widened. Never found a fixpoint. Largest state had 37 variables. [2018-09-19 01:48:06,976 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:48:10,219 INFO L232 lantSequenceWeakener]: Weakened 122 states. On average, predicates are now at 81.22% of their original sizes. [2018-09-19 01:48:10,220 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:48:11,411 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:48:11,413 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:48:11,413 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 01:48:11,414 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:48:11,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 01:48:11,432 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 01:48:11,433 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-09-19 01:48:11,438 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 10 states. [2018-09-19 01:48:17,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:48:17,473 INFO L93 Difference]: Finished difference Result 622 states and 1061 transitions. [2018-09-19 01:48:17,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-19 01:48:17,476 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 124 [2018-09-19 01:48:17,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:48:17,495 INFO L225 Difference]: With dead ends: 622 [2018-09-19 01:48:17,495 INFO L226 Difference]: Without dead ends: 383 [2018-09-19 01:48:17,503 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 127 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2018-09-19 01:48:17,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2018-09-19 01:48:17,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 380. [2018-09-19 01:48:17,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2018-09-19 01:48:17,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 531 transitions. [2018-09-19 01:48:17,582 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 531 transitions. Word has length 124 [2018-09-19 01:48:17,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:48:17,583 INFO L480 AbstractCegarLoop]: Abstraction has 380 states and 531 transitions. [2018-09-19 01:48:17,583 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 01:48:17,583 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 531 transitions. [2018-09-19 01:48:17,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-09-19 01:48:17,589 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:48:17,590 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 01:48:17,590 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:48:17,591 INFO L82 PathProgramCache]: Analyzing trace with hash -11635767, now seen corresponding path program 1 times [2018-09-19 01:48:17,591 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:48:17,591 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 135 with the following transitions: [2018-09-19 01:48:17,592 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [663], [665], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 01:48:17,599 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:48:17,600 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:48:54,052 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:48:54,053 INFO L272 AbstractInterpreter]: Visited 127 different actions 248 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 38 variables. [2018-09-19 01:48:54,099 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:48:56,844 INFO L232 lantSequenceWeakener]: Weakened 132 states. On average, predicates are now at 81.21% of their original sizes. [2018-09-19 01:48:56,845 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:48:57,866 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:48:57,867 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:48:57,867 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 01:48:57,867 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:48:57,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 01:48:57,869 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 01:48:57,869 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 01:48:57,870 INFO L87 Difference]: Start difference. First operand 380 states and 531 transitions. Second operand 14 states. [2018-09-19 01:49:05,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:49:05,924 INFO L93 Difference]: Finished difference Result 910 states and 1354 transitions. [2018-09-19 01:49:05,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 01:49:05,925 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 134 [2018-09-19 01:49:05,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:49:05,931 INFO L225 Difference]: With dead ends: 910 [2018-09-19 01:49:05,931 INFO L226 Difference]: Without dead ends: 536 [2018-09-19 01:49:05,936 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 148 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=192, Invalid=620, Unknown=0, NotChecked=0, Total=812 [2018-09-19 01:49:05,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2018-09-19 01:49:05,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 528. [2018-09-19 01:49:05,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2018-09-19 01:49:05,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 701 transitions. [2018-09-19 01:49:05,975 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 701 transitions. Word has length 134 [2018-09-19 01:49:05,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:49:05,976 INFO L480 AbstractCegarLoop]: Abstraction has 528 states and 701 transitions. [2018-09-19 01:49:05,976 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 01:49:05,976 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 701 transitions. [2018-09-19 01:49:05,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-09-19 01:49:05,981 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:49:05,981 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-09-19 01:49:05,982 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:49:05,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1856788799, now seen corresponding path program 1 times [2018-09-19 01:49:05,982 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:49:05,982 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 139 with the following transitions: [2018-09-19 01:49:05,983 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [663], [665], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 01:49:05,988 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:49:05,988 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:49:41,339 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:49:41,340 INFO L272 AbstractInterpreter]: Visited 127 different actions 248 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 38 variables. [2018-09-19 01:49:41,344 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:49:43,926 INFO L232 lantSequenceWeakener]: Weakened 136 states. On average, predicates are now at 81.19% of their original sizes. [2018-09-19 01:49:43,926 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:49:44,623 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:49:44,624 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:49:44,624 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 01:49:44,624 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:49:44,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 01:49:44,625 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 01:49:44,626 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 01:49:44,626 INFO L87 Difference]: Start difference. First operand 528 states and 701 transitions. Second operand 14 states. [2018-09-19 01:49:51,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:49:51,427 INFO L93 Difference]: Finished difference Result 1208 states and 1697 transitions. [2018-09-19 01:49:51,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-19 01:49:51,429 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 138 [2018-09-19 01:49:51,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:49:51,440 INFO L225 Difference]: With dead ends: 1208 [2018-09-19 01:49:51,441 INFO L226 Difference]: Without dead ends: 686 [2018-09-19 01:49:51,444 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 151 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=171, Invalid=585, Unknown=0, NotChecked=0, Total=756 [2018-09-19 01:49:51,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2018-09-19 01:49:51,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 676. [2018-09-19 01:49:51,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 676 states. [2018-09-19 01:49:51,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 881 transitions. [2018-09-19 01:49:51,488 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 881 transitions. Word has length 138 [2018-09-19 01:49:51,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:49:51,488 INFO L480 AbstractCegarLoop]: Abstraction has 676 states and 881 transitions. [2018-09-19 01:49:51,489 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 01:49:51,489 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 881 transitions. [2018-09-19 01:49:51,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-09-19 01:49:51,492 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:49:51,492 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2018-09-19 01:49:51,493 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:49:51,493 INFO L82 PathProgramCache]: Analyzing trace with hash -307830348, now seen corresponding path program 1 times [2018-09-19 01:49:51,493 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:49:51,493 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 144 with the following transitions: [2018-09-19 01:49:51,494 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [9], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [663], [665], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 01:49:51,499 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:49:51,500 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:50:41,678 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:50:41,678 INFO L272 AbstractInterpreter]: Visited 128 different actions 376 times. Merged at 7 different actions 14 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 38 variables. [2018-09-19 01:50:41,689 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:50:43,795 INFO L232 lantSequenceWeakener]: Weakened 141 states. On average, predicates are now at 81.21% of their original sizes. [2018-09-19 01:50:43,795 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:50:44,454 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:50:44,454 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:50:44,454 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 01:50:44,455 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:50:44,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 01:50:44,455 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 01:50:44,456 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 01:50:44,456 INFO L87 Difference]: Start difference. First operand 676 states and 881 transitions. Second operand 14 states. [2018-09-19 01:50:55,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:50:55,663 INFO L93 Difference]: Finished difference Result 1577 states and 2188 transitions. [2018-09-19 01:50:55,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-09-19 01:50:55,664 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 143 [2018-09-19 01:50:55,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:50:55,669 INFO L225 Difference]: With dead ends: 1577 [2018-09-19 01:50:55,670 INFO L226 Difference]: Without dead ends: 907 [2018-09-19 01:50:55,672 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 158 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2018-09-19 01:50:55,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2018-09-19 01:50:55,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 886. [2018-09-19 01:50:55,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 886 states. [2018-09-19 01:50:55,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1117 transitions. [2018-09-19 01:50:55,710 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1117 transitions. Word has length 143 [2018-09-19 01:50:55,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:50:55,711 INFO L480 AbstractCegarLoop]: Abstraction has 886 states and 1117 transitions. [2018-09-19 01:50:55,711 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 01:50:55,711 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1117 transitions. [2018-09-19 01:50:55,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-09-19 01:50:55,715 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:50:55,715 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2018-09-19 01:50:55,715 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:50:55,716 INFO L82 PathProgramCache]: Analyzing trace with hash -210999795, now seen corresponding path program 1 times [2018-09-19 01:50:55,716 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:50:55,716 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 158 with the following transitions: [2018-09-19 01:50:55,716 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [9], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [663], [665], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 01:50:55,721 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:50:55,721 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:52:06,443 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:52:06,443 INFO L272 AbstractInterpreter]: Visited 129 different actions 516 times. Merged at 8 different actions 33 times. Never widened. Found 8 fixpoints after 2 different actions. Largest state had 38 variables. [2018-09-19 01:52:06,449 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... [2018-09-19 01:52:08,608 INFO L232 lantSequenceWeakener]: Weakened 155 states. On average, predicates are now at 81.18% of their original sizes. [2018-09-19 01:52:08,609 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:52:08,628 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 01:52:08,632 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 01:52:08,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 01:52:08 BoogieIcfgContainer [2018-09-19 01:52:08,633 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 01:52:08,634 INFO L168 Benchmark]: Toolchain (without parser) took 264554.16 ms. Allocated memory was 1.5 GB in the beginning and 2.9 GB in the end (delta: 1.4 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 297.7 MB. Max. memory is 7.1 GB. [2018-09-19 01:52:08,636 INFO L168 Benchmark]: CDTParser took 0.22 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 01:52:08,637 INFO L168 Benchmark]: CACSL2BoogieTranslator took 754.74 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-19 01:52:08,637 INFO L168 Benchmark]: Boogie Procedure Inliner took 110.38 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 01:52:08,638 INFO L168 Benchmark]: Boogie Preprocessor took 272.16 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 734.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -817.5 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2018-09-19 01:52:08,639 INFO L168 Benchmark]: RCFGBuilder took 3982.21 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: 108.4 MB). Peak memory consumption was 108.4 MB. Max. memory is 7.1 GB. [2018-09-19 01:52:08,640 INFO L168 Benchmark]: TraceAbstraction took 259420.23 ms. Allocated memory was 2.3 GB in the beginning and 2.9 GB in the end (delta: 622.3 MB). Free memory was 2.1 GB in the beginning and 2.5 GB in the end (delta: -392.3 MB). Peak memory consumption was 230.1 MB. Max. memory is 7.1 GB. [2018-09-19 01:52:08,645 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 754.74 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 110.38 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 272.16 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 734.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -817.5 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3982.21 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: 108.4 MB). Peak memory consumption was 108.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 259420.23 ms. Allocated memory was 2.3 GB in the beginning and 2.9 GB in the end (delta: 622.3 MB). Free memory was 2.1 GB in the beginning and 2.5 GB in the end (delta: -392.3 MB). Peak memory consumption was 230.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 523]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 523). Cancelled while BasicCegarLoop was analyzing trace of length 158 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, 237 locations, 1 error locations. TIMEOUT Result, 259.3s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 32.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 918 SDtfs, 3655 SDslu, 1766 SDs, 0 SdLazy, 7983 SolverSat, 770 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 26.9s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 584 GetRequests, 491 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=886occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 210.3s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9939899340272581 AbsIntWeakeningRatio, 0.21273516642547033 AbsIntAvgWeakeningVarsNumRemoved, 2445.616497829233 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 42 StatesRemovedByMinimization, 4 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/Problem02_label14_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_01-52-08-658.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem02_label14_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_01-52-08-658.csv Completed graceful shutdown