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_label31_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 10:22:38,806 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 10:22:38,808 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 10:22:38,821 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 10:22:38,822 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 10:22:38,823 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 10:22:38,824 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 10:22:38,826 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 10:22:38,828 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 10:22:38,829 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 10:22:38,830 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 10:22:38,830 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 10:22:38,832 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 10:22:38,833 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 10:22:38,837 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 10:22:38,838 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 10:22:38,841 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 10:22:38,845 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 10:22:38,854 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 10:22:38,855 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 10:22:38,860 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 10:22:38,861 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 10:22:38,866 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 10:22:38,867 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 10:22:38,867 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 10:22:38,870 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 10:22:38,871 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 10:22:38,871 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 10:22:38,872 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 10:22:38,878 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 10:22:38,878 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 10:22:38,879 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 10:22:38,879 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 10:22:38,879 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 10:22:38,882 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 10:22:38,884 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 10:22:38,884 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 10:22:38,912 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 10:22:38,912 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 10:22:38,914 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 10:22:38,915 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 10:22:38,915 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 10:22:38,915 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 10:22:38,915 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 10:22:38,915 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 10:22:38,916 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 10:22:38,916 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 10:22:38,916 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 10:22:38,916 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 10:22:38,917 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 10:22:38,918 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 10:22:38,918 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 10:22:38,918 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 10:22:38,918 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 10:22:38,920 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 10:22:38,920 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 10:22:38,920 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 10:22:38,920 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 10:22:38,921 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 10:22:38,921 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 10:22:38,921 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 10:22:38,921 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 10:22:38,922 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 10:22:38,922 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 10:22:38,922 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 10:22:38,922 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 10:22:38,923 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 10:22:38,923 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 10:22:38,923 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 10:22:38,923 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 10:22:38,923 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 10:22:38,924 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 10:22:38,974 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 10:22:38,986 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 10:22:38,991 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 10:22:38,992 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 10:22:38,995 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 10:22:38,996 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label31_true-unreach-call.c [2018-09-19 10:22:39,383 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c55205c2b/db46d6f482e44476a4330110db77f48f/FLAG1f234cf69 [2018-09-19 10:22:39,839 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 10:22:39,839 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label31_true-unreach-call.c [2018-09-19 10:22:39,875 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c55205c2b/db46d6f482e44476a4330110db77f48f/FLAG1f234cf69 [2018-09-19 10:22:39,897 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c55205c2b/db46d6f482e44476a4330110db77f48f [2018-09-19 10:22:39,909 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 10:22:39,913 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 10:22:39,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 10:22:39,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 10:22:39,923 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 10:22:39,924 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 10:22:39" (1/1) ... [2018-09-19 10:22:39,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c834618 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:22:39, skipping insertion in model container [2018-09-19 10:22:39,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 10:22:39" (1/1) ... [2018-09-19 10:22:39,940 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 10:22:41,283 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 10:22:41,302 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 10:22:41,874 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 10:22:42,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:22:42 WrapperNode [2018-09-19 10:22:42,108 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 10:22:42,109 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 10:22:42,109 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 10:22:42,109 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 10:22:42,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:22:42" (1/1) ... [2018-09-19 10:22:42,210 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:22:42" (1/1) ... [2018-09-19 10:22:42,360 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 10:22:42,360 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 10:22:42,360 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 10:22:42,360 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 10:22:42,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:22:42" (1/1) ... [2018-09-19 10:22:42,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:22:42" (1/1) ... [2018-09-19 10:22:42,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:22:42" (1/1) ... [2018-09-19 10:22:42,970 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:22:42" (1/1) ... [2018-09-19 10:22:43,092 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:22:42" (1/1) ... [2018-09-19 10:22:43,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:22:42" (1/1) ... [2018-09-19 10:22:43,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:22:42" (1/1) ... [2018-09-19 10:22:43,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 10:22:43,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 10:22:43,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 10:22:43,219 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 10:22:43,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:22:42" (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 10:22:43,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 10:22:43,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 10:22:43,293 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-19 10:22:43,293 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-19 10:22:43,293 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-19 10:22:43,293 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-19 10:22:43,294 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 10:22:43,294 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 10:22:43,294 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 10:22:43,294 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 10:22:43,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 10:22:43,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 10:22:43,295 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 10:22:43,295 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 10:22:54,575 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 10:22:54,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 10:22:54 BoogieIcfgContainer [2018-09-19 10:22:54,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 10:22:54,577 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 10:22:54,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 10:22:54,580 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 10:22:54,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 10:22:39" (1/3) ... [2018-09-19 10:22:54,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@414736d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 10:22:54, skipping insertion in model container [2018-09-19 10:22:54,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:22:42" (2/3) ... [2018-09-19 10:22:54,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@414736d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 10:22:54, skipping insertion in model container [2018-09-19 10:22:54,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 10:22:54" (3/3) ... [2018-09-19 10:22:54,584 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label31_true-unreach-call.c [2018-09-19 10:22:54,595 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 10:22:54,607 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 10:22:54,669 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 10:22:54,670 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 10:22:54,670 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 10:22:54,670 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 10:22:54,671 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 10:22:54,671 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 10:22:54,671 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 10:22:54,671 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 10:22:54,671 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 10:22:54,714 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-09-19 10:22:54,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-09-19 10:22:54,726 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:22:54,727 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 10:22:54,729 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:22:54,734 INFO L82 PathProgramCache]: Analyzing trace with hash -621967516, now seen corresponding path program 1 times [2018-09-19 10:22:54,737 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:22:54,739 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 71 with the following transitions: [2018-09-19 10:22:54,742 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], [2307], [2315], [2323], [2327], [2329], [3244], [3248], [3254], [3258], [3271], [3272], [3273], [3275] [2018-09-19 10:22:54,808 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:22:54,809 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:22:57,114 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:22:57,116 INFO L272 AbstractInterpreter]: Visited 69 different actions 69 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-19 10:22:57,142 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:22:58,102 INFO L232 lantSequenceWeakener]: Weakened 68 states. On average, predicates are now at 78.13% of their original sizes. [2018-09-19 10:22:58,102 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:22:58,474 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:22:58,476 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:22:58,477 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 10:22:58,477 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:22:58,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 10:22:58,492 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 10:22:58,492 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 10:22:58,495 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 6 states. [2018-09-19 10:23:22,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:23:22,377 INFO L93 Difference]: Finished difference Result 2448 states and 4699 transitions. [2018-09-19 10:23:22,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 10:23:22,380 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 70 [2018-09-19 10:23:22,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:23:22,413 INFO L225 Difference]: With dead ends: 2448 [2018-09-19 10:23:22,413 INFO L226 Difference]: Without dead ends: 1606 [2018-09-19 10:23:22,422 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 69 GetRequests, 65 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 10:23:22,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2018-09-19 10:23:22,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1604. [2018-09-19 10:23:22,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-09-19 10:23:22,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2357 transitions. [2018-09-19 10:23:22,574 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2357 transitions. Word has length 70 [2018-09-19 10:23:22,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:23:22,575 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 2357 transitions. [2018-09-19 10:23:22,575 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 10:23:22,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2357 transitions. [2018-09-19 10:23:22,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-09-19 10:23:22,589 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:23:22,589 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, 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] [2018-09-19 10:23:22,590 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:23:22,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1046087974, now seen corresponding path program 1 times [2018-09-19 10:23:22,590 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:23:22,590 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 147 with the following transitions: [2018-09-19 10:23:22,591 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], [2307], [2315], [2323], [2327], [2329], [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 10:23:22,596 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:23:22,596 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:23:27,811 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:23:27,812 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 10:23:27,848 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:23:29,007 INFO L232 lantSequenceWeakener]: Weakened 144 states. On average, predicates are now at 76.54% of their original sizes. [2018-09-19 10:23:29,008 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:23:29,858 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:23:29,858 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:23:29,858 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 10:23:29,858 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:23:29,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 10:23:29,860 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 10:23:29,860 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2018-09-19 10:23:29,860 INFO L87 Difference]: Start difference. First operand 1604 states and 2357 transitions. Second operand 14 states. [2018-09-19 10:24:20,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:24:20,083 INFO L93 Difference]: Finished difference Result 5514 states and 10027 transitions. [2018-09-19 10:24:20,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-09-19 10:24:20,084 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 146 [2018-09-19 10:24:20,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:24:20,109 INFO L225 Difference]: With dead ends: 5514 [2018-09-19 10:24:20,109 INFO L226 Difference]: Without dead ends: 4684 [2018-09-19 10:24:20,116 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 160 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=174, Invalid=638, Unknown=0, NotChecked=0, Total=812 [2018-09-19 10:24:20,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4684 states. [2018-09-19 10:24:20,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4684 to 4681. [2018-09-19 10:24:20,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4681 states. [2018-09-19 10:24:20,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4681 states to 4681 states and 5484 transitions. [2018-09-19 10:24:20,259 INFO L78 Accepts]: Start accepts. Automaton has 4681 states and 5484 transitions. Word has length 146 [2018-09-19 10:24:20,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:24:20,260 INFO L480 AbstractCegarLoop]: Abstraction has 4681 states and 5484 transitions. [2018-09-19 10:24:20,262 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 10:24:20,263 INFO L276 IsEmpty]: Start isEmpty. Operand 4681 states and 5484 transitions. [2018-09-19 10:24:20,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-09-19 10:24:20,276 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:24:20,276 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, 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] [2018-09-19 10:24:20,277 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:24:20,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1213968518, now seen corresponding path program 1 times [2018-09-19 10:24:20,278 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:24:20,278 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 217 with the following transitions: [2018-09-19 10:24:20,279 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], [2307], [2315], [2323], [2327], [2329], [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 10:24:20,291 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:24:20,292 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:24:25,593 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:24:36,462 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:24:36,462 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 10:24:36,468 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:24:37,652 INFO L232 lantSequenceWeakener]: Weakened 214 states. On average, predicates are now at 76.03% of their original sizes. [2018-09-19 10:24:37,653 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:24:38,050 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:24:38,050 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:24:38,050 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 10:24:38,051 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:24:38,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 10:24:38,053 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 10:24:38,053 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 10:24:38,053 INFO L87 Difference]: Start difference. First operand 4681 states and 5484 transitions. Second operand 12 states. [2018-09-19 10:25:19,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:25:19,438 INFO L93 Difference]: Finished difference Result 6286 states and 8585 transitions. [2018-09-19 10:25:19,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 10:25:19,439 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 216 [2018-09-19 10:25:19,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:25:19,461 INFO L225 Difference]: With dead ends: 6286 [2018-09-19 10:25:19,462 INFO L226 Difference]: Without dead ends: 5456 [2018-09-19 10:25:19,466 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 226 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2018-09-19 10:25:19,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5456 states. [2018-09-19 10:25:19,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5456 to 5451. [2018-09-19 10:25:19,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5451 states. [2018-09-19 10:25:19,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 6269 transitions. [2018-09-19 10:25:19,598 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 6269 transitions. Word has length 216 [2018-09-19 10:25:19,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:25:19,599 INFO L480 AbstractCegarLoop]: Abstraction has 5451 states and 6269 transitions. [2018-09-19 10:25:19,599 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 10:25:19,599 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 6269 transitions. [2018-09-19 10:25:19,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-09-19 10:25:19,603 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:25:19,604 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, 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] [2018-09-19 10:25:19,604 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:25:19,604 INFO L82 PathProgramCache]: Analyzing trace with hash -164098382, now seen corresponding path program 1 times [2018-09-19 10:25:19,605 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:25:19,605 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 221 with the following transitions: [2018-09-19 10:25:19,605 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], [2307], [2315], [2323], [2327], [2329], [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 10:25:19,612 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:25:19,612 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:25:25,947 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:25:37,656 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:25:37,656 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 10:25:37,663 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:25:38,863 INFO L232 lantSequenceWeakener]: Weakened 218 states. On average, predicates are now at 76.02% of their original sizes. [2018-09-19 10:25:38,863 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:25:39,394 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:25:39,394 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:25:39,394 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 10:25:39,394 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:25:39,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 10:25:39,395 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 10:25:39,395 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 10:25:39,396 INFO L87 Difference]: Start difference. First operand 5451 states and 6269 transitions. Second operand 14 states. [2018-09-19 10:26:21,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:26:21,140 INFO L93 Difference]: Finished difference Result 7157 states and 9570 transitions. [2018-09-19 10:26:21,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 10:26:21,141 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 220 [2018-09-19 10:26:21,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:26:21,165 INFO L225 Difference]: With dead ends: 7157 [2018-09-19 10:26:21,165 INFO L226 Difference]: Without dead ends: 6327 [2018-09-19 10:26:21,170 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 232 GetRequests, 207 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 10:26:21,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6327 states. [2018-09-19 10:26:21,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6327 to 6225. [2018-09-19 10:26:21,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6225 states. [2018-09-19 10:26:21,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6225 states to 6225 states and 7083 transitions. [2018-09-19 10:26:21,322 INFO L78 Accepts]: Start accepts. Automaton has 6225 states and 7083 transitions. Word has length 220 [2018-09-19 10:26:21,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:26:21,323 INFO L480 AbstractCegarLoop]: Abstraction has 6225 states and 7083 transitions. [2018-09-19 10:26:21,323 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 10:26:21,323 INFO L276 IsEmpty]: Start isEmpty. Operand 6225 states and 7083 transitions. [2018-09-19 10:26:21,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2018-09-19 10:26:21,330 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:26:21,330 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, 3, 3, 3, 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 10:26:21,331 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:26:21,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1420131140, now seen corresponding path program 1 times [2018-09-19 10:26:21,331 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:26:21,332 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 293 with the following transitions: [2018-09-19 10:26:21,333 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], [2307], [2315], [2323], [2327], [2329], [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 10:26:21,345 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:26:21,345 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:26:27,926 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:26:42,589 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:26:42,589 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 10:26:42,593 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:26:44,177 INFO L232 lantSequenceWeakener]: Weakened 290 states. On average, predicates are now at 75.79% of their original sizes. [2018-09-19 10:26:44,177 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:26:44,984 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:26:44,985 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:26:44,985 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-09-19 10:26:44,985 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:26:44,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-09-19 10:26:44,986 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-09-19 10:26:44,986 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2018-09-19 10:26:44,986 INFO L87 Difference]: Start difference. First operand 6225 states and 7083 transitions. Second operand 17 states. Received shutdown request... [2018-09-19 10:26:52,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-19 10:26:52,827 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 10:26:52,832 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 10:26:52,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 10:26:52 BoogieIcfgContainer [2018-09-19 10:26:52,834 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 10:26:52,835 INFO L168 Benchmark]: Toolchain (without parser) took 252925.81 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-09-19 10:26:52,838 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 10:26:52,838 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2194.45 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 10:26:52,840 INFO L168 Benchmark]: Boogie Procedure Inliner took 251.12 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 10:26:52,841 INFO L168 Benchmark]: Boogie Preprocessor took 858.27 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 925.4 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 10:26:52,842 INFO L168 Benchmark]: RCFGBuilder took 11357.14 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: 668.8 MB). Peak memory consumption was 668.8 MB. Max. memory is 7.1 GB. [2018-09-19 10:26:52,843 INFO L168 Benchmark]: TraceAbstraction took 238257.44 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 2.7 GB in the end (delta: -1.0 GB). Peak memory consumption was 795.1 MB. Max. memory is 7.1 GB. [2018-09-19 10:26:52,856 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 2194.45 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 251.12 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 858.27 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 925.4 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 11357.14 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: 668.8 MB). Peak memory consumption was 668.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 238257.44 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 2.7 GB in the end (delta: -1.0 GB). Peak memory consumption was 795.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 201]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 201). Cancelled while BasicCegarLoop was constructing difference of abstraction (6225states) and FLOYD_HOARE automaton (currently 22 states, 17 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 238.1s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 165.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3376 SDtfs, 15031 SDslu, 2111 SDs, 0 SdLazy, 43974 SolverSat, 4548 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 149.8s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 995 GetRequests, 886 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 607 ImplicationChecksByTransitivity, 5.2s 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, 63.1s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9952501297069987 AbsIntWeakeningRatio, 0.11182108626198083 AbsIntAvgWeakeningVarsNumRemoved, 1059.3876464323748 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s 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_label31_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_10-26-52-882.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label31_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_10-26-52-882.csv Completed graceful shutdown