java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label04_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 10:18:12,454 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 10:18:12,456 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 10:18:12,469 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 10:18:12,469 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 10:18:12,470 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 10:18:12,472 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 10:18:12,474 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 10:18:12,476 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 10:18:12,477 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 10:18:12,478 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 10:18:12,478 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 10:18:12,479 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 10:18:12,480 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 10:18:12,481 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 10:18:12,482 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 10:18:12,483 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 10:18:12,485 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 10:18:12,487 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 10:18:12,489 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 10:18:12,490 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 10:18:12,492 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 10:18:12,494 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 10:18:12,495 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 10:18:12,495 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 10:18:12,496 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 10:18:12,497 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 10:18:12,498 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 10:18:12,499 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 10:18:12,500 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 10:18:12,500 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 10:18:12,501 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 10:18:12,501 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 10:18:12,502 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 10:18:12,503 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 10:18:12,504 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 10:18:12,504 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-19 10:18:12,521 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 10:18:12,521 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 10:18:12,522 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 10:18:12,522 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 10:18:12,523 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 10:18:12,523 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 10:18:12,523 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 10:18:12,523 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 10:18:12,524 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 10:18:12,524 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 10:18:12,524 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 10:18:12,524 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 10:18:12,525 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 10:18:12,525 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 10:18:12,526 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 10:18:12,526 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 10:18:12,526 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 10:18:12,526 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 10:18:12,527 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 10:18:12,527 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 10:18:12,527 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 10:18:12,527 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 10:18:12,528 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 10:18:12,528 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 10:18:12,528 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 10:18:12,528 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 10:18:12,528 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 10:18:12,529 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 10:18:12,529 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 10:18:12,529 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 10:18:12,529 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 10:18:12,529 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 10:18:12,529 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 10:18:12,530 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 10:18:12,530 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 10:18:12,591 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 10:18:12,616 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 10:18:12,622 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 10:18:12,623 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 10:18:12,624 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 10:18:12,625 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label04_true-unreach-call.c [2018-09-19 10:18:13,017 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68e3f42e9/10463c44aa004389b1cc2102b97967dc/FLAGdfce62518 [2018-09-19 10:18:13,525 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 10:18:13,526 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label04_true-unreach-call.c [2018-09-19 10:18:13,569 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68e3f42e9/10463c44aa004389b1cc2102b97967dc/FLAGdfce62518 [2018-09-19 10:18:13,594 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68e3f42e9/10463c44aa004389b1cc2102b97967dc [2018-09-19 10:18:13,610 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 10:18:13,613 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 10:18:13,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 10:18:13,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 10:18:13,625 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 10:18:13,627 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 10:18:13" (1/1) ... [2018-09-19 10:18:13,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@359f2bac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:18:13, skipping insertion in model container [2018-09-19 10:18:13,630 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 10:18:13" (1/1) ... [2018-09-19 10:18:13,642 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 10:18:15,221 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 10:18:15,242 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 10:18:15,835 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 10:18:16,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:18:16 WrapperNode [2018-09-19 10:18:16,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 10:18:16,078 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 10:18:16,078 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 10:18:16,079 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 10:18:16,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:18:16" (1/1) ... [2018-09-19 10:18:16,195 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:18:16" (1/1) ... [2018-09-19 10:18:16,345 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 10:18:16,346 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 10:18:16,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 10:18:16,346 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 10:18:16,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:18:16" (1/1) ... [2018-09-19 10:18:16,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:18:16" (1/1) ... [2018-09-19 10:18:16,991 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:18:16" (1/1) ... [2018-09-19 10:18:16,991 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:18:16" (1/1) ... [2018-09-19 10:18:17,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:18:16" (1/1) ... [2018-09-19 10:18:17,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:18:16" (1/1) ... [2018-09-19 10:18:17,214 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:18:16" (1/1) ... [2018-09-19 10:18:17,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 10:18:17,275 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 10:18:17,275 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 10:18:17,276 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 10:18:17,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:18:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 10:18:17,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 10:18:17,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 10:18:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-19 10:18:17,358 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-19 10:18:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-19 10:18:17,359 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-19 10:18:17,359 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 10:18:17,359 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 10:18:17,359 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 10:18:17,359 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 10:18:17,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 10:18:17,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 10:18:17,360 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 10:18:17,360 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 10:18:28,830 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 10:18:28,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 10:18:28 BoogieIcfgContainer [2018-09-19 10:18:28,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 10:18:28,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 10:18:28,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 10:18:28,836 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 10:18:28,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 10:18:13" (1/3) ... [2018-09-19 10:18:28,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bd92742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 10:18:28, skipping insertion in model container [2018-09-19 10:18:28,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:18:16" (2/3) ... [2018-09-19 10:18:28,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bd92742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 10:18:28, skipping insertion in model container [2018-09-19 10:18:28,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 10:18:28" (3/3) ... [2018-09-19 10:18:28,840 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label04_true-unreach-call.c [2018-09-19 10:18:28,850 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 10:18:28,861 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 10:18:28,936 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 10:18:28,937 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 10:18:28,937 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 10:18:28,938 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 10:18:28,938 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 10:18:28,938 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 10:18:28,938 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 10:18:28,938 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 10:18:28,938 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 10:18:28,983 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-09-19 10:18:28,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-09-19 10:18:28,998 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:18:29,000 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] [2018-09-19 10:18:29,001 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:18:29,007 INFO L82 PathProgramCache]: Analyzing trace with hash -629755477, now seen corresponding path program 1 times [2018-09-19 10:18:29,010 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:18:29,011 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 68 with the following transitions: [2018-09-19 10:18:29,015 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], [2259], [2267], [2275], [2283], [2291], [2299], [2303], [2305], [3244], [3248], [3254], [3258], [3271], [3272], [3273], [3275] [2018-09-19 10:18:29,091 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:18:29,091 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:18:31,451 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:18:31,453 INFO L272 AbstractInterpreter]: Visited 66 different actions 66 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-19 10:18:31,480 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:18:32,520 INFO L232 lantSequenceWeakener]: Weakened 65 states. On average, predicates are now at 78.08% of their original sizes. [2018-09-19 10:18:32,521 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:18:32,859 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:18:32,864 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:18:32,864 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 10:18:32,864 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:18:32,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 10:18:32,878 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 10:18:32,879 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 10:18:32,882 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 6 states. [2018-09-19 10:18:51,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:18:51,732 INFO L93 Difference]: Finished difference Result 2448 states and 4699 transitions. [2018-09-19 10:18:51,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 10:18:51,736 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2018-09-19 10:18:51,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:18:51,792 INFO L225 Difference]: With dead ends: 2448 [2018-09-19 10:18:51,792 INFO L226 Difference]: Without dead ends: 1606 [2018-09-19 10:18:51,809 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 10:18:51,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2018-09-19 10:18:52,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1604. [2018-09-19 10:18:52,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-09-19 10:18:52,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2357 transitions. [2018-09-19 10:18:52,037 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2357 transitions. Word has length 67 [2018-09-19 10:18:52,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:18:52,038 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 2357 transitions. [2018-09-19 10:18:52,038 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 10:18:52,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2357 transitions. [2018-09-19 10:18:52,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-09-19 10:18:52,050 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:18:52,051 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, 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] [2018-09-19 10:18:52,051 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:18:52,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1533826216, now seen corresponding path program 1 times [2018-09-19 10:18:52,052 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:18:52,053 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 144 with the following transitions: [2018-09-19 10:18:52,053 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], [2259], [2267], [2275], [2283], [2291], [2299], [2303], [2305], [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] [2018-09-19 10:18:52,064 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:18:52,065 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:18:57,234 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:18:57,234 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. [2018-09-19 10:18:57,275 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:18:58,689 INFO L232 lantSequenceWeakener]: Weakened 141 states. On average, predicates are now at 76.48% of their original sizes. [2018-09-19 10:18:58,689 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:18:59,432 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:18:59,433 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:18:59,433 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 10:18:59,433 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:18:59,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 10:18:59,435 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 10:18:59,435 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2018-09-19 10:18:59,435 INFO L87 Difference]: Start difference. First operand 1604 states and 2357 transitions. Second operand 14 states. [2018-09-19 10:19:43,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:19:43,314 INFO L93 Difference]: Finished difference Result 5514 states and 10027 transitions. [2018-09-19 10:19:43,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-09-19 10:19:43,315 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 143 [2018-09-19 10:19:43,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:19:43,342 INFO L225 Difference]: With dead ends: 5514 [2018-09-19 10:19:43,343 INFO L226 Difference]: Without dead ends: 4684 [2018-09-19 10:19:43,350 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 157 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=174, Invalid=638, Unknown=0, NotChecked=0, Total=812 [2018-09-19 10:19:43,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4684 states. [2018-09-19 10:19:43,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4684 to 4681. [2018-09-19 10:19:43,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4681 states. [2018-09-19 10:19:43,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4681 states to 4681 states and 5484 transitions. [2018-09-19 10:19:43,488 INFO L78 Accepts]: Start accepts. Automaton has 4681 states and 5484 transitions. Word has length 143 [2018-09-19 10:19:43,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:19:43,490 INFO L480 AbstractCegarLoop]: Abstraction has 4681 states and 5484 transitions. [2018-09-19 10:19:43,490 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 10:19:43,490 INFO L276 IsEmpty]: Start isEmpty. Operand 4681 states and 5484 transitions. [2018-09-19 10:19:43,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2018-09-19 10:19:43,497 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:19:43,497 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, 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] [2018-09-19 10:19:43,498 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:19:43,498 INFO L82 PathProgramCache]: Analyzing trace with hash 127925140, now seen corresponding path program 1 times [2018-09-19 10:19:43,498 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:19:43,499 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 214 with the following transitions: [2018-09-19 10:19:43,499 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], [2259], [2267], [2275], [2283], [2291], [2299], [2303], [2305], [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] [2018-09-19 10:19:43,506 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:19:43,507 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:19:49,092 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:20:02,018 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:20:02,019 INFO L272 AbstractInterpreter]: Visited 153 different actions 446 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 10:20:02,024 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:20:03,511 INFO L232 lantSequenceWeakener]: Weakened 211 states. On average, predicates are now at 75.99% of their original sizes. [2018-09-19 10:20:03,512 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:20:03,932 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:20:03,933 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:20:03,933 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 10:20:03,933 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:20:03,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 10:20:03,934 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 10:20:03,935 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 10:20:03,935 INFO L87 Difference]: Start difference. First operand 4681 states and 5484 transitions. Second operand 12 states. [2018-09-19 10:20:39,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:20:39,829 INFO L93 Difference]: Finished difference Result 6286 states and 8585 transitions. [2018-09-19 10:20:39,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 10:20:39,831 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 213 [2018-09-19 10:20:39,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:20:39,863 INFO L225 Difference]: With dead ends: 6286 [2018-09-19 10:20:39,863 INFO L226 Difference]: Without dead ends: 5456 [2018-09-19 10:20:39,869 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 223 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2018-09-19 10:20:39,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5456 states. [2018-09-19 10:20:40,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5456 to 5451. [2018-09-19 10:20:40,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5451 states. [2018-09-19 10:20:40,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 6269 transitions. [2018-09-19 10:20:40,033 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 6269 transitions. Word has length 213 [2018-09-19 10:20:40,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:20:40,035 INFO L480 AbstractCegarLoop]: Abstraction has 5451 states and 6269 transitions. [2018-09-19 10:20:40,035 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 10:20:40,036 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 6269 transitions. [2018-09-19 10:20:40,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-09-19 10:20:40,044 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:20:40,044 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, 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] [2018-09-19 10:20:40,045 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:20:40,045 INFO L82 PathProgramCache]: Analyzing trace with hash 82972636, now seen corresponding path program 1 times [2018-09-19 10:20:40,045 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:20:40,045 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 218 with the following transitions: [2018-09-19 10:20:40,046 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], [2259], [2267], [2275], [2283], [2291], [2299], [2303], [2305], [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] [2018-09-19 10:20:40,062 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:20:40,062 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:20:45,374 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:20:58,459 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:20:58,459 INFO L272 AbstractInterpreter]: Visited 157 different actions 458 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 10:20:58,464 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:20:59,624 INFO L232 lantSequenceWeakener]: Weakened 215 states. On average, predicates are now at 75.97% of their original sizes. [2018-09-19 10:20:59,625 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:21:00,197 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:21:00,197 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:21:00,197 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 10:21:00,197 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:21:00,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 10:21:00,199 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 10:21:00,199 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 10:21:00,199 INFO L87 Difference]: Start difference. First operand 5451 states and 6269 transitions. Second operand 14 states. [2018-09-19 10:21:38,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:21:38,557 INFO L93 Difference]: Finished difference Result 7157 states and 9570 transitions. [2018-09-19 10:21:38,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 10:21:38,558 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 217 [2018-09-19 10:21:38,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:21:38,581 INFO L225 Difference]: With dead ends: 7157 [2018-09-19 10:21:38,582 INFO L226 Difference]: Without dead ends: 6327 [2018-09-19 10:21:38,586 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 229 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=171, Invalid=531, Unknown=0, NotChecked=0, Total=702 [2018-09-19 10:21:38,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6327 states. [2018-09-19 10:21:38,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6327 to 6225. [2018-09-19 10:21:38,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6225 states. [2018-09-19 10:21:38,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6225 states to 6225 states and 7083 transitions. [2018-09-19 10:21:38,739 INFO L78 Accepts]: Start accepts. Automaton has 6225 states and 7083 transitions. Word has length 217 [2018-09-19 10:21:38,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:21:38,740 INFO L480 AbstractCegarLoop]: Abstraction has 6225 states and 7083 transitions. [2018-09-19 10:21:38,740 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 10:21:38,740 INFO L276 IsEmpty]: Start isEmpty. Operand 6225 states and 7083 transitions. [2018-09-19 10:21:38,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2018-09-19 10:21:38,746 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:21:38,746 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 10:21:38,747 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:21:38,747 INFO L82 PathProgramCache]: Analyzing trace with hash 331016529, now seen corresponding path program 1 times [2018-09-19 10:21:38,747 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:21:38,747 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 290 with the following transitions: [2018-09-19 10:21:38,750 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], [2259], [2267], [2275], [2283], [2291], [2299], [2303], [2305], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [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] [2018-09-19 10:21:38,765 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:21:38,766 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:21:45,333 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:22:00,522 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:22:00,522 INFO L272 AbstractInterpreter]: Visited 154 different actions 606 times. Merged at 7 different actions 23 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-19 10:22:00,533 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:22:02,174 INFO L232 lantSequenceWeakener]: Weakened 287 states. On average, predicates are now at 75.76% of their original sizes. [2018-09-19 10:22:02,174 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:22:02,950 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:22:02,951 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:22:02,951 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-09-19 10:22:02,951 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:22:02,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-09-19 10:22:02,952 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-09-19 10:22:02,952 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2018-09-19 10:22:02,953 INFO L87 Difference]: Start difference. First operand 6225 states and 7083 transitions. Second operand 17 states. Received shutdown request... [2018-09-19 10:22:26,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-09-19 10:22:26,782 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 10:22:26,789 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 10:22:26,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 10:22:26 BoogieIcfgContainer [2018-09-19 10:22:26,790 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 10:22:26,791 INFO L168 Benchmark]: Toolchain (without parser) took 253180.65 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.8 GB). Free memory was 1.4 GB in the beginning and 3.0 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-09-19 10:22:26,793 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 10:22:26,794 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2462.42 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: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-09-19 10:22:26,795 INFO L168 Benchmark]: Boogie Procedure Inliner took 267.21 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-19 10:22:26,797 INFO L168 Benchmark]: Boogie Preprocessor took 928.87 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 931.7 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. [2018-09-19 10:22:26,798 INFO L168 Benchmark]: RCFGBuilder took 11555.74 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: 655.8 MB). Peak memory consumption was 655.8 MB. Max. memory is 7.1 GB. [2018-09-19 10:22:26,799 INFO L168 Benchmark]: TraceAbstraction took 237958.12 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 3.0 GB in the end (delta: -1.3 GB). Peak memory consumption was 544.5 MB. Max. memory is 7.1 GB. [2018-09-19 10:22:26,805 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 2462.42 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: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 267.21 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 928.87 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 931.7 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 11555.74 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: 655.8 MB). Peak memory consumption was 655.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 237958.12 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 3.0 GB in the end (delta: -1.3 GB). Peak memory consumption was 544.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 192]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 192). Cancelled while BasicCegarLoop was constructing difference of abstraction (6225states) and FLOYD_HOARE automaton (currently 26 states, 17 states before enhancement), while ReachableStatesComputation was computing reachable states (3589 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 237.8s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 161.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3637 SDtfs, 17621 SDslu, 1783 SDs, 0 SdLazy, 41741 SolverSat, 5159 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 145.2s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 980 GetRequests, 871 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6225occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 66.4s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9951730214230213 AbsIntWeakeningRatio, 0.11363636363636363 AbsIntAvgWeakeningVarsNumRemoved, 1058.6958874458874 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 4 MinimizatonAttempts, 112 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/Problem12_label04_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_10-22-26-820.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label04_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_10-22-26-820.csv Completed graceful shutdown