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/Problem15_label10_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 12:12:41,010 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 12:12:41,012 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 12:12:41,025 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 12:12:41,025 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 12:12:41,026 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 12:12:41,028 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 12:12:41,030 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 12:12:41,032 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 12:12:41,033 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 12:12:41,033 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 12:12:41,034 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 12:12:41,035 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 12:12:41,036 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 12:12:41,037 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 12:12:41,040 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 12:12:41,041 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 12:12:41,047 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 12:12:41,053 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 12:12:41,057 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 12:12:41,059 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 12:12:41,060 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 12:12:41,066 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 12:12:41,066 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 12:12:41,066 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 12:12:41,068 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 12:12:41,072 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 12:12:41,073 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 12:12:41,077 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 12:12:41,078 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 12:12:41,078 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 12:12:41,081 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 12:12:41,081 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 12:12:41,081 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 12:12:41,084 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 12:12:41,085 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 12:12:41,086 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 12:12:41,115 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 12:12:41,115 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 12:12:41,117 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 12:12:41,117 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 12:12:41,118 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 12:12:41,118 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 12:12:41,118 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 12:12:41,118 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 12:12:41,118 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 12:12:41,119 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 12:12:41,119 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 12:12:41,120 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 12:12:41,121 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 12:12:41,121 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 12:12:41,121 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 12:12:41,121 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 12:12:41,121 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 12:12:41,122 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 12:12:41,122 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 12:12:41,122 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 12:12:41,122 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 12:12:41,124 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 12:12:41,124 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 12:12:41,124 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 12:12:41,125 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 12:12:41,125 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 12:12:41,125 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 12:12:41,125 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 12:12:41,126 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 12:12:41,126 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 12:12:41,126 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 12:12:41,126 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 12:12:41,126 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 12:12:41,205 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 12:12:41,221 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 12:12:41,227 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 12:12:41,228 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 12:12:41,229 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 12:12:41,230 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label10_true-unreach-call.c [2018-09-15 12:12:41,620 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4807a9fb3/a657151abf2c42bb99d06b6b9ba9d978/FLAGb40cf9ecf [2018-09-15 12:12:42,014 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 12:12:42,015 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label10_true-unreach-call.c [2018-09-15 12:12:42,038 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4807a9fb3/a657151abf2c42bb99d06b6b9ba9d978/FLAGb40cf9ecf [2018-09-15 12:12:42,055 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4807a9fb3/a657151abf2c42bb99d06b6b9ba9d978 [2018-09-15 12:12:42,067 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 12:12:42,070 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 12:12:42,072 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 12:12:42,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 12:12:42,079 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 12:12:42,080 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:12:42" (1/1) ... [2018-09-15 12:12:42,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f57d78e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:12:42, skipping insertion in model container [2018-09-15 12:12:42,083 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:12:42" (1/1) ... [2018-09-15 12:12:42,095 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 12:12:42,993 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:12:43,011 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 12:12:43,241 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:12:43,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:12:43 WrapperNode [2018-09-15 12:12:43,387 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 12:12:43,388 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 12:12:43,389 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 12:12:43,389 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 12:12:43,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:12:43" (1/1) ... [2018-09-15 12:12:43,455 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:12:43" (1/1) ... [2018-09-15 12:12:43,680 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 12:12:43,681 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 12:12:43,681 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 12:12:43,682 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 12:12:44,114 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:12:43" (1/1) ... [2018-09-15 12:12:44,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:12:43" (1/1) ... [2018-09-15 12:12:44,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:12:43" (1/1) ... [2018-09-15 12:12:44,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:12:43" (1/1) ... [2018-09-15 12:12:44,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:12:43" (1/1) ... [2018-09-15 12:12:44,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:12:43" (1/1) ... [2018-09-15 12:12:44,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:12:43" (1/1) ... [2018-09-15 12:12:44,304 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 12:12:44,305 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 12:12:44,305 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 12:12:44,305 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 12:12:44,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:12:43" (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 12:12:44,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 12:12:44,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 12:12:44,378 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 12:12:44,378 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 12:12:44,378 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 12:12:44,378 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 12:12:44,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 12:12:44,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 12:12:44,379 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 12:12:44,379 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 12:12:51,821 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 12:12:51,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:12:51 BoogieIcfgContainer [2018-09-15 12:12:51,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 12:12:51,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 12:12:51,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 12:12:51,827 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 12:12:51,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 12:12:42" (1/3) ... [2018-09-15 12:12:51,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c96b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:12:51, skipping insertion in model container [2018-09-15 12:12:51,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:12:43" (2/3) ... [2018-09-15 12:12:51,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c96b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:12:51, skipping insertion in model container [2018-09-15 12:12:51,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:12:51" (3/3) ... [2018-09-15 12:12:51,833 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label10_true-unreach-call.c [2018-09-15 12:12:51,845 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 12:12:51,856 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 12:12:51,923 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 12:12:51,924 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 12:12:51,924 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 12:12:51,924 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 12:12:51,925 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 12:12:51,925 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 12:12:51,925 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 12:12:51,925 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 12:12:51,925 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 12:12:51,962 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-09-15 12:12:51,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-15 12:12:51,973 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:12:51,974 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] [2018-09-15 12:12:51,976 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:12:51,983 INFO L82 PathProgramCache]: Analyzing trace with hash -98869727, now seen corresponding path program 1 times [2018-09-15 12:12:51,986 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:12:51,987 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 42 with the following transitions: [2018-09-15 12:12:51,991 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [301], [303], [1639], [1643], [1649], [1653], [1662], [1663], [1664], [1666] [2018-09-15 12:12:52,060 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:12:52,060 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:12:53,132 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:12:53,134 INFO L272 AbstractInterpreter]: Visited 40 different actions 40 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 12:12:53,153 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:12:53,715 INFO L232 lantSequenceWeakener]: Weakened 39 states. On average, predicates are now at 80.14% of their original sizes. [2018-09-15 12:12:53,715 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:12:54,004 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:12:54,006 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:12:54,006 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 12:12:54,007 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:12:54,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 12:12:54,020 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 12:12:54,021 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 12:12:54,024 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 6 states. [2018-09-15 12:13:07,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:13:07,421 INFO L93 Difference]: Finished difference Result 1184 states and 2139 transitions. [2018-09-15 12:13:07,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 12:13:07,423 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 41 [2018-09-15 12:13:07,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:13:07,444 INFO L225 Difference]: With dead ends: 1184 [2018-09-15 12:13:07,445 INFO L226 Difference]: Without dead ends: 744 [2018-09-15 12:13:07,455 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 12:13:07,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-09-15 12:13:07,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 742. [2018-09-15 12:13:07,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2018-09-15 12:13:07,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1072 transitions. [2018-09-15 12:13:07,574 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1072 transitions. Word has length 41 [2018-09-15 12:13:07,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:13:07,575 INFO L480 AbstractCegarLoop]: Abstraction has 742 states and 1072 transitions. [2018-09-15 12:13:07,575 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 12:13:07,575 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1072 transitions. [2018-09-15 12:13:07,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-09-15 12:13:07,585 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:13:07,586 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:13:07,586 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:13:07,586 INFO L82 PathProgramCache]: Analyzing trace with hash -907597033, now seen corresponding path program 1 times [2018-09-15 12:13:07,587 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:13:07,587 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 138 with the following transitions: [2018-09-15 12:13:07,588 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [301], [303], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-15 12:13:07,595 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:13:07,596 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:13:11,128 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:13:23,456 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:13:23,456 INFO L272 AbstractInterpreter]: Visited 103 different actions 393 times. Merged at 5 different actions 14 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:13:23,470 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:13:25,340 INFO L232 lantSequenceWeakener]: Weakened 135 states. On average, predicates are now at 78.19% of their original sizes. [2018-09-15 12:13:25,341 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:13:27,196 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:13:27,196 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:13:27,197 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 12:13:27,197 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:13:27,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 12:13:27,199 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 12:13:27,199 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-15 12:13:27,200 INFO L87 Difference]: Start difference. First operand 742 states and 1072 transitions. Second operand 11 states. [2018-09-15 12:13:45,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:13:45,778 INFO L93 Difference]: Finished difference Result 1771 states and 3006 transitions. [2018-09-15 12:13:45,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 12:13:45,780 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 137 [2018-09-15 12:13:45,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:13:45,788 INFO L225 Difference]: With dead ends: 1771 [2018-09-15 12:13:45,788 INFO L226 Difference]: Without dead ends: 1343 [2018-09-15 12:13:45,792 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 144 GetRequests, 98 SyntacticMatches, 29 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2018-09-15 12:13:45,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2018-09-15 12:13:45,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 1056. [2018-09-15 12:13:45,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2018-09-15 12:13:45,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1400 transitions. [2018-09-15 12:13:45,845 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1400 transitions. Word has length 137 [2018-09-15 12:13:45,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:13:45,847 INFO L480 AbstractCegarLoop]: Abstraction has 1056 states and 1400 transitions. [2018-09-15 12:13:45,847 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 12:13:45,847 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1400 transitions. [2018-09-15 12:13:45,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2018-09-15 12:13:45,855 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:13:45,855 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:13:45,856 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:13:45,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1667136868, now seen corresponding path program 1 times [2018-09-15 12:13:45,856 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:13:45,857 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 280 with the following transitions: [2018-09-15 12:13:45,857 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [301], [303], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1378], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-15 12:13:45,880 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:13:45,880 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:13:53,599 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:14:06,641 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:14:06,642 INFO L272 AbstractInterpreter]: Visited 245 different actions 722 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:14:06,648 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:14:09,194 INFO L232 lantSequenceWeakener]: Weakened 277 states. On average, predicates are now at 77.72% of their original sizes. [2018-09-15 12:14:09,195 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:14:10,311 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:14:10,312 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:14:10,313 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 12:14:10,313 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:14:10,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 12:14:10,314 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 12:14:10,315 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-15 12:14:10,315 INFO L87 Difference]: Start difference. First operand 1056 states and 1400 transitions. Second operand 12 states. [2018-09-15 12:14:39,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:14:39,138 INFO L93 Difference]: Finished difference Result 2106 states and 3372 transitions. [2018-09-15 12:14:39,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 12:14:39,142 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 279 [2018-09-15 12:14:39,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:14:39,159 INFO L225 Difference]: With dead ends: 2106 [2018-09-15 12:14:39,159 INFO L226 Difference]: Without dead ends: 1678 [2018-09-15 12:14:39,162 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 286 GetRequests, 239 SyntacticMatches, 29 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-15 12:14:39,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1678 states. [2018-09-15 12:14:39,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1678 to 1675. [2018-09-15 12:14:39,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1675 states. [2018-09-15 12:14:39,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1675 states to 1675 states and 2037 transitions. [2018-09-15 12:14:39,241 INFO L78 Accepts]: Start accepts. Automaton has 1675 states and 2037 transitions. Word has length 279 [2018-09-15 12:14:39,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:14:39,242 INFO L480 AbstractCegarLoop]: Abstraction has 1675 states and 2037 transitions. [2018-09-15 12:14:39,242 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 12:14:39,242 INFO L276 IsEmpty]: Start isEmpty. Operand 1675 states and 2037 transitions. [2018-09-15 12:14:39,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2018-09-15 12:14:39,254 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:14:39,255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:14:39,255 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:14:39,256 INFO L82 PathProgramCache]: Analyzing trace with hash 441032517, now seen corresponding path program 1 times [2018-09-15 12:14:39,256 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:14:39,256 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 281 with the following transitions: [2018-09-15 12:14:39,257 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [301], [303], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1382], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-15 12:14:39,266 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:14:39,267 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:14:45,334 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:15:10,094 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:15:10,095 INFO L272 AbstractInterpreter]: Visited 246 different actions 965 times. Merged at 5 different actions 14 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:15:10,104 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:15:12,246 INFO L232 lantSequenceWeakener]: Weakened 278 states. On average, predicates are now at 77.72% of their original sizes. [2018-09-15 12:15:12,246 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:15:16,345 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:15:16,346 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:15:16,346 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-15 12:15:16,346 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:15:16,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-15 12:15:16,347 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-15 12:15:16,347 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-15 12:15:16,350 INFO L87 Difference]: Start difference. First operand 1675 states and 2037 transitions. Second operand 14 states. [2018-09-15 12:15:46,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:15:46,298 INFO L93 Difference]: Finished difference Result 3138 states and 4842 transitions. [2018-09-15 12:15:46,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-15 12:15:46,299 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 280 [2018-09-15 12:15:46,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:15:46,312 INFO L225 Difference]: With dead ends: 3138 [2018-09-15 12:15:46,312 INFO L226 Difference]: Without dead ends: 2710 [2018-09-15 12:15:46,314 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 292 GetRequests, 238 SyntacticMatches, 29 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2018-09-15 12:15:46,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2710 states. [2018-09-15 12:15:46,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2710 to 2023. [2018-09-15 12:15:46,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2023 states. [2018-09-15 12:15:46,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2023 states to 2023 states and 2397 transitions. [2018-09-15 12:15:46,384 INFO L78 Accepts]: Start accepts. Automaton has 2023 states and 2397 transitions. Word has length 280 [2018-09-15 12:15:46,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:15:46,385 INFO L480 AbstractCegarLoop]: Abstraction has 2023 states and 2397 transitions. [2018-09-15 12:15:46,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-15 12:15:46,385 INFO L276 IsEmpty]: Start isEmpty. Operand 2023 states and 2397 transitions. [2018-09-15 12:15:46,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2018-09-15 12:15:46,391 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:15:46,391 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:15:46,392 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:15:46,392 INFO L82 PathProgramCache]: Analyzing trace with hash 955682996, now seen corresponding path program 1 times [2018-09-15 12:15:46,392 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:15:46,393 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 317 with the following transitions: [2018-09-15 12:15:46,393 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [301], [303], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-15 12:15:46,401 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:15:46,401 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:15:53,194 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:16:20,948 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:16:20,949 INFO L272 AbstractInterpreter]: Visited 282 different actions 558 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:16:20,983 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:16:29,147 INFO L232 lantSequenceWeakener]: Weakened 314 states. On average, predicates are now at 77.67% of their original sizes. [2018-09-15 12:16:29,147 INFO L412 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-09-15 12:16:30,510 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-15 12:16:30,516 WARN L206 ceAbstractionStarter]: Timeout [2018-09-15 12:16:30,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 12:16:30 BoogieIcfgContainer [2018-09-15 12:16:30,517 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 12:16:30,517 INFO L168 Benchmark]: Toolchain (without parser) took 228449.98 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 2.4 GB in the end (delta: -994.7 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-09-15 12:16:30,520 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 12:16:30,520 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1315.93 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 116.3 MB). Peak memory consumption was 116.3 MB. Max. memory is 7.1 GB. [2018-09-15 12:16:30,521 INFO L168 Benchmark]: Boogie Procedure Inliner took 292.37 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-15 12:16:30,522 INFO L168 Benchmark]: Boogie Preprocessor took 623.83 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 888.1 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. [2018-09-15 12:16:30,523 INFO L168 Benchmark]: RCFGBuilder took 7517.60 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 301.9 MB). Peak memory consumption was 301.9 MB. Max. memory is 7.1 GB. [2018-09-15 12:16:30,524 INFO L168 Benchmark]: TraceAbstraction took 218693.00 ms. Allocated memory was 2.4 GB in the beginning and 4.3 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -433.9 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-09-15 12:16:30,534 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1315.93 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 116.3 MB). Peak memory consumption was 116.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 292.37 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 623.83 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 888.1 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7517.60 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 301.9 MB). Peak memory consumption was 301.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 218693.00 ms. Allocated memory was 2.4 GB in the beginning and 4.3 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -433.9 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 109]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 109). Cancelled while BasicCegarLoop was analyzing trace of length 317 with TraceHistMax 2, while AbsIntCurrentIteration was generating AI predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 11 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 218.6s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 90.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1853 SDtfs, 7452 SDslu, 1611 SDs, 0 SdLazy, 16022 SolverSat, 2024 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 83.6s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 762 GetRequests, 611 SyntacticMatches, 87 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1027 ImplicationChecksByTransitivity, 8.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2023occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 103.2s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9958286817729232 AbsIntWeakeningRatio, 0.08969465648854962 AbsIntAvgWeakeningVarsNumRemoved, 456.3062977099237 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 979 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/Problem15_label10_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_12-16-30-554.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label10_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_12-16-30-554.csv Completed graceful shutdown