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_label36_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 11:48:10,463 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 11:48:10,466 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 11:48:10,478 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 11:48:10,478 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 11:48:10,479 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 11:48:10,481 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 11:48:10,482 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 11:48:10,484 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 11:48:10,485 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 11:48:10,486 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 11:48:10,486 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 11:48:10,487 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 11:48:10,488 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 11:48:10,489 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 11:48:10,490 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 11:48:10,491 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 11:48:10,493 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 11:48:10,495 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 11:48:10,497 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 11:48:10,498 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 11:48:10,499 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 11:48:10,502 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 11:48:10,502 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 11:48:10,502 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 11:48:10,503 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 11:48:10,504 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 11:48:10,505 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 11:48:10,506 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 11:48:10,507 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 11:48:10,507 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 11:48:10,510 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 11:48:10,511 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 11:48:10,511 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 11:48:10,512 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 11:48:10,515 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 11:48:10,515 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 11:48:10,545 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 11:48:10,548 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 11:48:10,549 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 11:48:10,549 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 11:48:10,549 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 11:48:10,549 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 11:48:10,549 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 11:48:10,550 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 11:48:10,550 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 11:48:10,550 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 11:48:10,550 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 11:48:10,552 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 11:48:10,552 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 11:48:10,552 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 11:48:10,552 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 11:48:10,553 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 11:48:10,554 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 11:48:10,554 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 11:48:10,554 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 11:48:10,554 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 11:48:10,554 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 11:48:10,555 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 11:48:10,555 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 11:48:10,555 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 11:48:10,555 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 11:48:10,556 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 11:48:10,556 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 11:48:10,556 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 11:48:10,556 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 11:48:10,556 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 11:48:10,557 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 11:48:10,557 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 11:48:10,557 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 11:48:10,615 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 11:48:10,628 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 11:48:10,632 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 11:48:10,635 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 11:48:10,635 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 11:48:10,636 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label36_true-unreach-call.c [2018-09-15 11:48:10,988 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c302efbd/80d280722d034020b94475e127f588a6/FLAG95e2bb0fc [2018-09-15 11:48:11,422 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 11:48:11,423 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label36_true-unreach-call.c [2018-09-15 11:48:11,465 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c302efbd/80d280722d034020b94475e127f588a6/FLAG95e2bb0fc [2018-09-15 11:48:11,487 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c302efbd/80d280722d034020b94475e127f588a6 [2018-09-15 11:48:11,500 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 11:48:11,505 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 11:48:11,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 11:48:11,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 11:48:11,520 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 11:48:11,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:48:11" (1/1) ... [2018-09-15 11:48:11,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49f06a43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:48:11, skipping insertion in model container [2018-09-15 11:48:11,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:48:11" (1/1) ... [2018-09-15 11:48:11,539 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 11:48:12,912 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 11:48:12,933 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 11:48:13,589 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 11:48:13,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:48:13 WrapperNode [2018-09-15 11:48:13,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 11:48:13,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 11:48:13,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 11:48:13,835 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 11:48:13,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:48:13" (1/1) ... [2018-09-15 11:48:13,938 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:48:13" (1/1) ... [2018-09-15 11:48:14,121 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 11:48:14,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 11:48:14,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 11:48:14,122 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 11:48:14,712 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:48:13" (1/1) ... [2018-09-15 11:48:14,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:48:13" (1/1) ... [2018-09-15 11:48:14,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:48:13" (1/1) ... [2018-09-15 11:48:14,748 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:48:13" (1/1) ... [2018-09-15 11:48:14,862 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:48:13" (1/1) ... [2018-09-15 11:48:14,895 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:48:13" (1/1) ... [2018-09-15 11:48:14,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:48:13" (1/1) ... [2018-09-15 11:48:14,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 11:48:14,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 11:48:14,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 11:48:14,982 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 11:48:14,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:48:13" (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 11:48:15,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 11:48:15,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 11:48:15,058 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-15 11:48:15,058 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-15 11:48:15,059 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-15 11:48:15,059 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-15 11:48:15,059 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 11:48:15,059 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 11:48:15,059 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 11:48:15,060 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 11:48:15,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 11:48:15,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 11:48:15,060 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 11:48:15,060 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 11:48:25,746 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 11:48:25,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:48:25 BoogieIcfgContainer [2018-09-15 11:48:25,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 11:48:25,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 11:48:25,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 11:48:25,751 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 11:48:25,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 11:48:11" (1/3) ... [2018-09-15 11:48:25,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a9a6610 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:48:25, skipping insertion in model container [2018-09-15 11:48:25,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:48:13" (2/3) ... [2018-09-15 11:48:25,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a9a6610 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:48:25, skipping insertion in model container [2018-09-15 11:48:25,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:48:25" (3/3) ... [2018-09-15 11:48:25,755 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label36_true-unreach-call.c [2018-09-15 11:48:25,765 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 11:48:25,773 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 11:48:25,847 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 11:48:25,848 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 11:48:25,848 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 11:48:25,849 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 11:48:25,849 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 11:48:25,849 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 11:48:25,849 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 11:48:25,849 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 11:48:25,849 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 11:48:25,905 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-09-15 11:48:25,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-09-15 11:48:25,916 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:48:25,917 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] [2018-09-15 11:48:25,918 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:48:25,923 INFO L82 PathProgramCache]: Analyzing trace with hash -21070164, now seen corresponding path program 1 times [2018-09-15 11:48:25,925 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:48:25,926 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 65 with the following transitions: [2018-09-15 11:48:25,929 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], [2279], [2281], [3244], [3248], [3254], [3258], [3271], [3272], [3273], [3275] [2018-09-15 11:48:25,993 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:48:25,993 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:48:28,609 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:48:28,610 INFO L272 AbstractInterpreter]: Visited 63 different actions 63 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-15 11:48:28,630 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:48:29,549 INFO L232 lantSequenceWeakener]: Weakened 62 states. On average, predicates are now at 78.03% of their original sizes. [2018-09-15 11:48:29,550 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:48:29,912 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:48:29,914 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:48:29,914 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 11:48:29,914 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:48:29,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 11:48:29,927 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 11:48:29,928 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 11:48:29,930 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 6 states. [2018-09-15 11:48:50,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:48:50,813 INFO L93 Difference]: Finished difference Result 2448 states and 4699 transitions. [2018-09-15 11:48:50,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 11:48:50,815 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2018-09-15 11:48:50,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:48:50,846 INFO L225 Difference]: With dead ends: 2448 [2018-09-15 11:48:50,846 INFO L226 Difference]: Without dead ends: 1606 [2018-09-15 11:48:50,857 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 63 GetRequests, 59 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 11:48:50,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2018-09-15 11:48:51,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1604. [2018-09-15 11:48:51,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-09-15 11:48:51,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2357 transitions. [2018-09-15 11:48:51,035 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2357 transitions. Word has length 64 [2018-09-15 11:48:51,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:48:51,035 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 2357 transitions. [2018-09-15 11:48:51,035 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 11:48:51,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2357 transitions. [2018-09-15 11:48:51,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-09-15 11:48:51,044 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:48:51,044 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, 1, 1, 1, 1, 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 11:48:51,044 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:48:51,045 INFO L82 PathProgramCache]: Analyzing trace with hash -131464626, now seen corresponding path program 1 times [2018-09-15 11:48:51,045 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:48:51,045 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 141 with the following transitions: [2018-09-15 11:48:51,046 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], [2279], [2281], [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 11:48:51,054 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:48:51,054 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:49:00,107 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:49:00,107 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 11:49:00,140 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:49:03,284 INFO L232 lantSequenceWeakener]: Weakened 138 states. On average, predicates are now at 76.45% of their original sizes. [2018-09-15 11:49:03,284 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:49:05,488 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:49:05,488 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:49:05,488 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 11:49:05,488 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:49:05,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 11:49:05,491 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 11:49:05,492 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 11:49:05,492 INFO L87 Difference]: Start difference. First operand 1604 states and 2357 transitions. Second operand 11 states. [2018-09-15 11:49:43,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:49:43,302 INFO L93 Difference]: Finished difference Result 3976 states and 6980 transitions. [2018-09-15 11:49:43,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 11:49:43,303 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 140 [2018-09-15 11:49:43,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:49:43,322 INFO L225 Difference]: With dead ends: 3976 [2018-09-15 11:49:43,322 INFO L226 Difference]: Without dead ends: 3146 [2018-09-15 11:49:43,327 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 146 GetRequests, 78 SyntacticMatches, 52 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 11:49:43,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3146 states. [2018-09-15 11:49:43,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3146 to 3143. [2018-09-15 11:49:43,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3143 states. [2018-09-15 11:49:43,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3143 states to 3143 states and 3918 transitions. [2018-09-15 11:49:43,433 INFO L78 Accepts]: Start accepts. Automaton has 3143 states and 3918 transitions. Word has length 140 [2018-09-15 11:49:43,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:49:43,435 INFO L480 AbstractCegarLoop]: Abstraction has 3143 states and 3918 transitions. [2018-09-15 11:49:43,435 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 11:49:43,436 INFO L276 IsEmpty]: Start isEmpty. Operand 3143 states and 3918 transitions. [2018-09-15 11:49:43,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2018-09-15 11:49:43,450 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:49:43,451 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:49:43,451 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:49:43,456 INFO L82 PathProgramCache]: Analyzing trace with hash 392810402, now seen corresponding path program 1 times [2018-09-15 11:49:43,456 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:49:43,456 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 211 with the following transitions: [2018-09-15 11:49:43,457 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], [2279], [2281], [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 11:49:43,473 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:49:43,474 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:49:49,535 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 11:50:13,558 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:50:13,559 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 11:50:13,612 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:50:20,487 INFO L232 lantSequenceWeakener]: Weakened 208 states. On average, predicates are now at 75.96% of their original sizes. [2018-09-15 11:50:20,487 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:50:22,715 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:50:22,715 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:50:22,716 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-15 11:50:22,716 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:50:22,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-15 11:50:22,718 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-15 11:50:22,718 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-15 11:50:22,718 INFO L87 Difference]: Start difference. First operand 3143 states and 3918 transitions. Second operand 13 states. [2018-09-15 11:50:56,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:50:56,409 INFO L93 Difference]: Finished difference Result 4746 states and 7018 transitions. [2018-09-15 11:50:56,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-15 11:50:56,411 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 210 [2018-09-15 11:50:56,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:50:56,429 INFO L225 Difference]: With dead ends: 4746 [2018-09-15 11:50:56,429 INFO L226 Difference]: Without dead ends: 3916 [2018-09-15 11:50:56,433 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 220 GetRequests, 146 SyntacticMatches, 52 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 562 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2018-09-15 11:50:56,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3916 states. [2018-09-15 11:50:56,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3916 to 3913. [2018-09-15 11:50:56,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3913 states. [2018-09-15 11:50:56,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3913 states to 3913 states and 4704 transitions. [2018-09-15 11:50:56,549 INFO L78 Accepts]: Start accepts. Automaton has 3913 states and 4704 transitions. Word has length 210 [2018-09-15 11:50:56,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:50:56,550 INFO L480 AbstractCegarLoop]: Abstraction has 3913 states and 4704 transitions. [2018-09-15 11:50:56,550 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-15 11:50:56,550 INFO L276 IsEmpty]: Start isEmpty. Operand 3913 states and 4704 transitions. [2018-09-15 11:50:56,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-09-15 11:50:56,554 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:50:56,559 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:50:56,559 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:50:56,560 INFO L82 PathProgramCache]: Analyzing trace with hash -296474406, now seen corresponding path program 1 times [2018-09-15 11:50:56,560 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:50:56,560 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 215 with the following transitions: [2018-09-15 11:50:56,561 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], [2279], [2281], [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 11:50:56,575 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:50:56,575 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:51:03,075 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 11:51:27,265 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:51:27,265 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 11:51:27,268 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:51:33,139 INFO L232 lantSequenceWeakener]: Weakened 212 states. On average, predicates are now at 75.94% of their original sizes. [2018-09-15 11:51:33,139 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:51:35,428 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:51:35,428 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:51:35,428 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-15 11:51:35,429 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:51:35,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-15 11:51:35,430 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-15 11:51:35,430 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-15 11:51:35,431 INFO L87 Difference]: Start difference. First operand 3913 states and 4704 transitions. Second operand 14 states. Received shutdown request... [2018-09-15 11:52:16,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-15 11:52:16,828 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-15 11:52:16,836 WARN L206 ceAbstractionStarter]: Timeout [2018-09-15 11:52:16,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 11:52:16 BoogieIcfgContainer [2018-09-15 11:52:16,836 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 11:52:16,837 INFO L168 Benchmark]: Toolchain (without parser) took 245334.94 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 3.4 GB in the end (delta: -2.0 GB). Peak memory consumption was 801.0 MB. Max. memory is 7.1 GB. [2018-09-15 11:52:16,839 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 11:52:16,840 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2321.99 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. [2018-09-15 11:52:16,841 INFO L168 Benchmark]: Boogie Procedure Inliner took 286.19 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. [2018-09-15 11:52:16,841 INFO L168 Benchmark]: Boogie Preprocessor took 860.25 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 930.6 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 11:52:16,843 INFO L168 Benchmark]: RCFGBuilder took 10765.18 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: 650.2 MB). Peak memory consumption was 650.2 MB. Max. memory is 7.1 GB. [2018-09-15 11:52:16,843 INFO L168 Benchmark]: TraceAbstraction took 231088.40 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 3.4 GB in the end (delta: -1.7 GB). Peak memory consumption was 126.9 MB. Max. memory is 7.1 GB. [2018-09-15 11:52:16,849 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2321.99 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 286.19 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 860.25 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 930.6 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 10765.18 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: 650.2 MB). Peak memory consumption was 650.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 231088.40 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 3.4 GB in the end (delta: -1.7 GB). Peak memory consumption was 126.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 183]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 183). Cancelled while BasicCegarLoop was constructing difference of abstraction (3913states) and FLOYD_HOARE automaton (currently 20 states, 14 states before enhancement), while ReachableStatesComputation was computing reachable states (4347 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 230.9s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 133.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3098 SDtfs, 8924 SDslu, 1528 SDs, 0 SdLazy, 31916 SolverSat, 3559 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 122.6s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 655 GetRequests, 432 SyntacticMatches, 156 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1544 ImplicationChecksByTransitivity, 8.9s 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, 72.6s AbstIntTime, 4 AbstIntIterations, 4 AbstIntStrong, 0.9946570923734381 AbsIntWeakeningRatio, 0.125 AbsIntAvgWeakeningVarsNumRemoved, 120.87179487179488 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s 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_label36_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_11-52-16-863.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label36_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_11-52-16-863.csv Completed graceful shutdown