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/Problem12_label15_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 11:44:18,217 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 11:44:18,219 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 11:44:18,232 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 11:44:18,232 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 11:44:18,233 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 11:44:18,234 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 11:44:18,236 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 11:44:18,238 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 11:44:18,239 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 11:44:18,239 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 11:44:18,240 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 11:44:18,241 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 11:44:18,242 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 11:44:18,243 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 11:44:18,244 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 11:44:18,244 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 11:44:18,246 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 11:44:18,248 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 11:44:18,250 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 11:44:18,251 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 11:44:18,252 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 11:44:18,255 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 11:44:18,255 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 11:44:18,255 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 11:44:18,256 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 11:44:18,257 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 11:44:18,258 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 11:44:18,258 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 11:44:18,260 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 11:44:18,260 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 11:44:18,261 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 11:44:18,261 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 11:44:18,261 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 11:44:18,262 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 11:44:18,263 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 11:44:18,263 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-15 11:44:18,280 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 11:44:18,282 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 11:44:18,283 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 11:44:18,283 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 11:44:18,283 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 11:44:18,285 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 11:44:18,286 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 11:44:18,286 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 11:44:18,286 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 11:44:18,286 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 11:44:18,286 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 11:44:18,287 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 11:44:18,289 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 11:44:18,289 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 11:44:18,289 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 11:44:18,289 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 11:44:18,290 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 11:44:18,290 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 11:44:18,290 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 11:44:18,290 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 11:44:18,292 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 11:44:18,292 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 11:44:18,292 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 11:44:18,292 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 11:44:18,292 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 11:44:18,293 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 11:44:18,293 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 11:44:18,293 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 11:44:18,293 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 11:44:18,293 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 11:44:18,294 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 11:44:18,294 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 11:44:18,294 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 11:44:18,343 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 11:44:18,356 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 11:44:18,360 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 11:44:18,361 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 11:44:18,362 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 11:44:18,363 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label15_true-unreach-call.c [2018-09-15 11:44:18,769 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9feee3ae7/ac4b4cf310174325955f4b7b4c10f8ea/FLAGdf4cc35cc [2018-09-15 11:44:19,273 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 11:44:19,274 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label15_true-unreach-call.c [2018-09-15 11:44:19,305 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9feee3ae7/ac4b4cf310174325955f4b7b4c10f8ea/FLAGdf4cc35cc [2018-09-15 11:44:19,329 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9feee3ae7/ac4b4cf310174325955f4b7b4c10f8ea [2018-09-15 11:44:19,343 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 11:44:19,346 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 11:44:19,347 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 11:44:19,348 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 11:44:19,355 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 11:44:19,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:44:19" (1/1) ... [2018-09-15 11:44:19,359 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 15.09 11:44:19, skipping insertion in model container [2018-09-15 11:44:19,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:44:19" (1/1) ... [2018-09-15 11:44:19,373 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 11:44:20,606 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 11:44:20,626 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 11:44:21,269 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 11:44:21,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:21 WrapperNode [2018-09-15 11:44:21,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 11:44:21,544 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 11:44:21,545 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 11:44:21,545 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 11:44:21,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:21" (1/1) ... [2018-09-15 11:44:21,652 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:21" (1/1) ... [2018-09-15 11:44:21,813 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 11:44:21,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 11:44:21,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 11:44:21,814 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 11:44:22,425 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:21" (1/1) ... [2018-09-15 11:44:22,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:21" (1/1) ... [2018-09-15 11:44:22,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:21" (1/1) ... [2018-09-15 11:44:22,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:21" (1/1) ... [2018-09-15 11:44:22,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:21" (1/1) ... [2018-09-15 11:44:22,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:21" (1/1) ... [2018-09-15 11:44:22,667 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:21" (1/1) ... [2018-09-15 11:44:22,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 11:44:22,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 11:44:22,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 11:44:22,745 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 11:44:22,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 11:44:22,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 11:44:22,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 11:44:22,824 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-15 11:44:22,824 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-15 11:44:22,824 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-15 11:44:22,824 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-15 11:44:22,824 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 11:44:22,824 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 11:44:22,825 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 11:44:22,825 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 11:44:22,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 11:44:22,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 11:44:22,826 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 11:44:22,826 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 11:44:34,737 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 11:44:34,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:44:34 BoogieIcfgContainer [2018-09-15 11:44:34,738 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 11:44:34,739 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 11:44:34,739 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 11:44:34,742 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 11:44:34,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 11:44:19" (1/3) ... [2018-09-15 11:44:34,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49257913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:44:34, skipping insertion in model container [2018-09-15 11:44:34,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:21" (2/3) ... [2018-09-15 11:44:34,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49257913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:44:34, skipping insertion in model container [2018-09-15 11:44:34,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:44:34" (3/3) ... [2018-09-15 11:44:34,746 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label15_true-unreach-call.c [2018-09-15 11:44:34,757 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 11:44:34,767 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 11:44:34,833 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 11:44:34,834 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 11:44:34,834 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 11:44:34,834 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 11:44:34,834 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 11:44:34,834 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 11:44:34,834 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 11:44:34,834 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 11:44:34,835 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 11:44:34,875 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-09-15 11:44:34,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-09-15 11:44:34,893 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:44:34,894 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] [2018-09-15 11:44:34,896 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:44:34,900 INFO L82 PathProgramCache]: Analyzing trace with hash 394736435, now seen corresponding path program 1 times [2018-09-15 11:44:34,902 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:44:34,903 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 62 with the following transitions: [2018-09-15 11:44:34,906 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2255], [2257], [3244], [3248], [3254], [3258], [3271], [3272], [3273], [3275] [2018-09-15 11:44:34,980 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:44:34,980 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:44:37,605 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:44:37,607 INFO L272 AbstractInterpreter]: Visited 60 different actions 60 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-15 11:44:37,634 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:44:38,679 INFO L232 lantSequenceWeakener]: Weakened 59 states. On average, predicates are now at 77.97% of their original sizes. [2018-09-15 11:44:38,680 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:44:39,050 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:44:39,051 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:44:39,051 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 11:44:39,052 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:44:39,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 11:44:39,064 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 11:44:39,065 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 11:44:39,067 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 6 states. [2018-09-15 11:44:58,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:44:58,169 INFO L93 Difference]: Finished difference Result 2448 states and 4699 transitions. [2018-09-15 11:44:58,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 11:44:58,173 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2018-09-15 11:44:58,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:44:58,222 INFO L225 Difference]: With dead ends: 2448 [2018-09-15 11:44:58,223 INFO L226 Difference]: Without dead ends: 1606 [2018-09-15 11:44:58,235 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 60 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 11:44:58,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2018-09-15 11:44:58,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1604. [2018-09-15 11:44:58,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-09-15 11:44:58,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2357 transitions. [2018-09-15 11:44:58,428 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2357 transitions. Word has length 61 [2018-09-15 11:44:58,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:44:58,429 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 2357 transitions. [2018-09-15 11:44:58,429 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 11:44:58,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2357 transitions. [2018-09-15 11:44:58,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-09-15 11:44:58,443 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:44:58,444 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-15 11:44:58,444 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:44:58,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1330651216, now seen corresponding path program 1 times [2018-09-15 11:44:58,445 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:44:58,445 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 138 with the following transitions: [2018-09-15 11:44:58,446 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2255], [2257], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-15 11:44:58,457 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:44:58,457 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:45:10,095 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:45:10,095 INFO L272 AbstractInterpreter]: Visited 83 different actions 159 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-15 11:45:10,109 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:45:13,891 INFO L232 lantSequenceWeakener]: Weakened 135 states. On average, predicates are now at 76.39% of their original sizes. [2018-09-15 11:45:13,891 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:45:15,780 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:45:15,781 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:45:15,781 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 11:45:15,781 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:45:15,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 11:45:15,783 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 11:45:15,783 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 11:45:15,783 INFO L87 Difference]: Start difference. First operand 1604 states and 2357 transitions. Second operand 11 states. [2018-09-15 11:45:52,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:45:52,344 INFO L93 Difference]: Finished difference Result 3976 states and 6980 transitions. [2018-09-15 11:45:52,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 11:45:52,344 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 137 [2018-09-15 11:45:52,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:45:52,360 INFO L225 Difference]: With dead ends: 3976 [2018-09-15 11:45:52,360 INFO L226 Difference]: Without dead ends: 3146 [2018-09-15 11:45:52,365 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 143 GetRequests, 78 SyntacticMatches, 49 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 11:45:52,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3146 states. [2018-09-15 11:45:52,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3146 to 3143. [2018-09-15 11:45:52,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3143 states. [2018-09-15 11:45:52,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3143 states to 3143 states and 3918 transitions. [2018-09-15 11:45:52,470 INFO L78 Accepts]: Start accepts. Automaton has 3143 states and 3918 transitions. Word has length 137 [2018-09-15 11:45:52,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:45:52,472 INFO L480 AbstractCegarLoop]: Abstraction has 3143 states and 3918 transitions. [2018-09-15 11:45:52,472 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 11:45:52,472 INFO L276 IsEmpty]: Start isEmpty. Operand 3143 states and 3918 transitions. [2018-09-15 11:45:52,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2018-09-15 11:45:52,478 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:45:52,478 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-15 11:45:52,479 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:45:52,479 INFO L82 PathProgramCache]: Analyzing trace with hash -506224580, now seen corresponding path program 1 times [2018-09-15 11:45:52,479 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:45:52,479 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 208 with the following transitions: [2018-09-15 11:45:52,480 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2255], [2257], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2664], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-15 11:45:52,489 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:45:52,489 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:45:59,813 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 11:46:26,987 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:46:26,987 INFO L272 AbstractInterpreter]: Visited 153 different actions 300 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-15 11:46:27,017 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:46:34,098 INFO L232 lantSequenceWeakener]: Weakened 205 states. On average, predicates are now at 75.91% of their original sizes. [2018-09-15 11:46:34,099 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:46:36,227 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:46:36,227 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:46:36,228 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-15 11:46:36,228 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:46:36,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-15 11:46:36,230 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-15 11:46:36,230 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-15 11:46:36,231 INFO L87 Difference]: Start difference. First operand 3143 states and 3918 transitions. Second operand 13 states. [2018-09-15 11:47:28,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:47:28,572 INFO L93 Difference]: Finished difference Result 4746 states and 7018 transitions. [2018-09-15 11:47:28,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-15 11:47:28,574 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 207 [2018-09-15 11:47:28,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:47:28,597 INFO L225 Difference]: With dead ends: 4746 [2018-09-15 11:47:28,597 INFO L226 Difference]: Without dead ends: 3916 [2018-09-15 11:47:28,602 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 217 GetRequests, 146 SyntacticMatches, 49 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2018-09-15 11:47:28,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3916 states. [2018-09-15 11:47:28,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3916 to 3913. [2018-09-15 11:47:28,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3913 states. [2018-09-15 11:47:28,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3913 states to 3913 states and 4704 transitions. [2018-09-15 11:47:28,740 INFO L78 Accepts]: Start accepts. Automaton has 3913 states and 4704 transitions. Word has length 207 [2018-09-15 11:47:28,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:47:28,742 INFO L480 AbstractCegarLoop]: Abstraction has 3913 states and 4704 transitions. [2018-09-15 11:47:28,742 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-15 11:47:28,743 INFO L276 IsEmpty]: Start isEmpty. Operand 3913 states and 4704 transitions. [2018-09-15 11:47:28,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-09-15 11:47:28,752 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:47:28,757 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-15 11:47:28,757 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:47:28,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1511695740, now seen corresponding path program 1 times [2018-09-15 11:47:28,758 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:47:28,758 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 212 with the following transitions: [2018-09-15 11:47:28,759 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2255], [2257], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2680], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-15 11:47:28,775 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:47:28,775 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:47:35,872 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 11:48:01,606 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:48:01,606 INFO L272 AbstractInterpreter]: Visited 157 different actions 308 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-15 11:48:01,611 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:48:07,465 INFO L232 lantSequenceWeakener]: Weakened 209 states. On average, predicates are now at 75.9% of their original sizes. [2018-09-15 11:48:07,466 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:48:09,781 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:48:09,782 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:48:09,782 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-15 11:48:09,782 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:48:09,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-15 11:48:09,783 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-15 11:48:09,784 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-15 11:48:09,784 INFO L87 Difference]: Start difference. First operand 3913 states and 4704 transitions. Second operand 14 states. Received shutdown request... [2018-09-15 11:48:23,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-15 11:48:23,670 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-15 11:48:23,675 WARN L206 ceAbstractionStarter]: Timeout [2018-09-15 11:48:23,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 11:48:23 BoogieIcfgContainer [2018-09-15 11:48:23,675 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 11:48:23,676 INFO L168 Benchmark]: Toolchain (without parser) took 244332.38 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-09-15 11:48:23,678 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 11:48:23,678 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2196.52 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 245.8 MB). Peak memory consumption was 245.8 MB. Max. memory is 7.1 GB. [2018-09-15 11:48:23,679 INFO L168 Benchmark]: Boogie Procedure Inliner took 268.59 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. [2018-09-15 11:48:23,680 INFO L168 Benchmark]: Boogie Preprocessor took 930.71 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 928.0 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 127.9 MB. Max. memory is 7.1 GB. [2018-09-15 11:48:23,681 INFO L168 Benchmark]: RCFGBuilder took 11993.78 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 644.7 MB). Peak memory consumption was 644.7 MB. Max. memory is 7.1 GB. [2018-09-15 11:48:23,682 INFO L168 Benchmark]: TraceAbstraction took 228936.26 ms. Allocated memory was 2.5 GB in the beginning and 4.3 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 3.1 GB in the end (delta: -1.5 GB). Peak memory consumption was 360.4 MB. Max. memory is 7.1 GB. [2018-09-15 11:48:23,687 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2196.52 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 245.8 MB). Peak memory consumption was 245.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 268.59 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 930.71 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 928.0 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 127.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11993.78 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 644.7 MB). Peak memory consumption was 644.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 228936.26 ms. Allocated memory was 2.5 GB in the beginning and 4.3 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 3.1 GB in the end (delta: -1.5 GB). Peak memory consumption was 360.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 174). Cancelled while BasicCegarLoop was constructing difference of abstraction (3913states) and FLOYD_HOARE automaton (currently 18 states, 14 states before enhancement), while ReachableStatesComputation was computing reachable states (1339 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 228.8s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 122.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2674 SDtfs, 7771 SDslu, 1775 SDs, 0 SdLazy, 28462 SolverSat, 3129 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 111.7s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 642 GetRequests, 429 SyntacticMatches, 147 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1472 ImplicationChecksByTransitivity, 8.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3913occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 81.7s AbstIntTime, 4 AbstIntIterations, 4 AbstIntStrong, 0.9945523294787998 AbsIntWeakeningRatio, 0.12745098039215685 AbsIntAvgWeakeningVarsNumRemoved, 117.74673202614379 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 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/Problem12_label15_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_11-48-23-701.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label15_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_11-48-23-701.csv Completed graceful shutdown