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_INT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label11_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 15:02:05,759 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 15:02:05,761 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 15:02:05,773 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 15:02:05,773 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 15:02:05,774 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 15:02:05,776 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 15:02:05,777 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 15:02:05,779 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 15:02:05,780 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 15:02:05,781 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 15:02:05,781 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 15:02:05,782 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 15:02:05,783 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 15:02:05,784 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 15:02:05,785 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 15:02:05,786 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 15:02:05,788 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 15:02:05,790 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 15:02:05,791 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 15:02:05,792 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 15:02:05,793 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 15:02:05,796 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-15 15:02:05,803 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 15:02:05,803 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 15:02:05,804 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 15:02:05,807 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 15:02:05,807 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf [2018-09-15 15:02:05,834 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 15:02:05,835 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 15:02:05,836 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 15:02:05,836 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 15:02:05,836 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 15:02:05,836 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 15:02:05,837 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 15:02:05,837 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 15:02:05,837 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 15:02:05,837 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-09-15 15:02:05,837 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 15:02:05,837 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 15:02:05,838 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 15:02:05,838 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 15:02:05,838 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 15:02:05,839 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 15:02:05,839 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 15:02:05,839 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 15:02:05,839 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 15:02:05,839 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 15:02:05,840 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 15:02:05,840 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 15:02:05,840 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 15:02:05,840 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 15:02:05,840 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 15:02:05,841 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 15:02:05,841 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 15:02:05,841 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 15:02:05,841 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 15:02:05,841 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 15:02:05,842 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 15:02:05,842 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 15:02:05,842 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 15:02:05,842 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 15:02:05,902 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 15:02:05,918 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 15:02:05,922 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 15:02:05,923 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 15:02:05,923 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 15:02:05,924 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label11_true-unreach-call.c [2018-09-15 15:02:06,282 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b94ac8bc8/b5fbef056cf748b59830b7b137f664dd/FLAG2121833f1 [2018-09-15 15:02:06,666 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 15:02:06,667 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label11_true-unreach-call.c [2018-09-15 15:02:06,685 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b94ac8bc8/b5fbef056cf748b59830b7b137f664dd/FLAG2121833f1 [2018-09-15 15:02:06,700 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b94ac8bc8/b5fbef056cf748b59830b7b137f664dd [2018-09-15 15:02:06,709 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 15:02:06,713 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 15:02:06,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 15:02:06,714 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 15:02:06,721 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 15:02:06,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 03:02:06" (1/1) ... [2018-09-15 15:02:06,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43dbb45b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:02:06, skipping insertion in model container [2018-09-15 15:02:06,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 03:02:06" (1/1) ... [2018-09-15 15:02:06,737 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 15:02:07,588 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 15:02:07,608 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 15:02:07,895 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 15:02:08,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:02:08 WrapperNode [2018-09-15 15:02:08,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 15:02:08,064 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 15:02:08,064 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 15:02:08,064 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 15:02:08,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:02:08" (1/1) ... [2018-09-15 15:02:08,144 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:02:08" (1/1) ... [2018-09-15 15:02:08,632 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 15:02:08,633 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 15:02:08,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 15:02:08,633 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 15:02:08,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:02:08" (1/1) ... [2018-09-15 15:02:08,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:02:08" (1/1) ... [2018-09-15 15:02:08,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:02:08" (1/1) ... [2018-09-15 15:02:08,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:02:08" (1/1) ... [2018-09-15 15:02:08,779 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:02:08" (1/1) ... [2018-09-15 15:02:08,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:02:08" (1/1) ... [2018-09-15 15:02:08,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:02:08" (1/1) ... [2018-09-15 15:02:08,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 15:02:08,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 15:02:08,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 15:02:08,872 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 15:02:08,875 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:02:08" (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 15:02:08,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 15:02:08,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 15:02:08,946 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 15:02:08,946 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 15:02:08,946 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 15:02:08,947 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 15:02:08,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 15:02:08,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 15:02:08,947 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 15:02:08,947 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 15:02:18,353 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 15:02:18,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 03:02:18 BoogieIcfgContainer [2018-09-15 15:02:18,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 15:02:18,355 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 15:02:18,355 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 15:02:18,357 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 15:02:18,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 03:02:06" (1/3) ... [2018-09-15 15:02:18,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f437207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 03:02:18, skipping insertion in model container [2018-09-15 15:02:18,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:02:08" (2/3) ... [2018-09-15 15:02:18,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f437207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 03:02:18, skipping insertion in model container [2018-09-15 15:02:18,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 03:02:18" (3/3) ... [2018-09-15 15:02:18,361 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label11_true-unreach-call.c [2018-09-15 15:02:18,370 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 15:02:18,379 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 15:02:18,439 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 15:02:18,440 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 15:02:18,440 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 15:02:18,440 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 15:02:18,440 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 15:02:18,440 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 15:02:18,441 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 15:02:18,441 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 15:02:18,441 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 15:02:18,480 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-09-15 15:02:18,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-09-15 15:02:18,490 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:02:18,491 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] [2018-09-15 15:02:18,492 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:02:18,496 INFO L82 PathProgramCache]: Analyzing trace with hash -383317628, now seen corresponding path program 1 times [2018-09-15 15:02:18,498 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:02:18,499 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 63 with the following transitions: [2018-09-15 15:02:18,502 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], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [1639], [1643], [1649], [1653], [1662], [1663], [1664], [1666] [2018-09-15 15:02:18,545 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:02:18,545 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:02:19,057 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:02:19,062 INFO L272 AbstractInterpreter]: Visited 61 different actions 61 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 15:02:19,108 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:02:19,427 INFO L232 lantSequenceWeakener]: Weakened 59 states. On average, predicates are now at 80.4% of their original sizes. [2018-09-15 15:02:19,428 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:02:19,681 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:02:19,683 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:02:19,683 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 15:02:19,683 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:02:19,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 15:02:19,700 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 15:02:19,700 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 15:02:19,703 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 6 states. [2018-09-15 15:02:28,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:02:28,595 INFO L93 Difference]: Finished difference Result 1184 states and 2139 transitions. [2018-09-15 15:02:28,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 15:02:28,600 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2018-09-15 15:02:28,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:02:28,622 INFO L225 Difference]: With dead ends: 1184 [2018-09-15 15:02:28,622 INFO L226 Difference]: Without dead ends: 744 [2018-09-15 15:02:28,632 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 61 GetRequests, 57 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 15:02:28,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-09-15 15:02:28,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 742. [2018-09-15 15:02:28,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2018-09-15 15:02:28,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1072 transitions. [2018-09-15 15:02:28,728 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1072 transitions. Word has length 62 [2018-09-15 15:02:28,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:02:28,729 INFO L480 AbstractCegarLoop]: Abstraction has 742 states and 1072 transitions. [2018-09-15 15:02:28,729 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 15:02:28,729 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1072 transitions. [2018-09-15 15:02:28,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-09-15 15:02:28,738 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:02:28,738 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:02:28,739 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:02:28,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1659206605, now seen corresponding path program 1 times [2018-09-15 15:02:28,739 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:02:28,740 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 159 with the following transitions: [2018-09-15 15:02:28,740 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], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [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 15:02:28,747 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:02:28,747 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:02:31,302 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 15:02:33,365 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:02:33,366 INFO L272 AbstractInterpreter]: Visited 103 different actions 199 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 15:02:33,372 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:02:35,623 INFO L232 lantSequenceWeakener]: Weakened 155 states. On average, predicates are now at 78.54% of their original sizes. [2018-09-15 15:02:35,624 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:02:35,976 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:02:35,976 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:02:35,976 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 15:02:35,976 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:02:35,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 15:02:35,978 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 15:02:35,978 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 15:02:35,979 INFO L87 Difference]: Start difference. First operand 742 states and 1072 transitions. Second operand 11 states. [2018-09-15 15:02:49,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:02:49,092 INFO L93 Difference]: Finished difference Result 1792 states and 3044 transitions. [2018-09-15 15:02:49,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 15:02:49,100 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 158 [2018-09-15 15:02:49,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:02:49,110 INFO L225 Difference]: With dead ends: 1792 [2018-09-15 15:02:49,110 INFO L226 Difference]: Without dead ends: 1364 [2018-09-15 15:02:49,113 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 164 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 15:02:49,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2018-09-15 15:02:49,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1361. [2018-09-15 15:02:49,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1361 states. [2018-09-15 15:02:49,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1361 states to 1361 states and 1709 transitions. [2018-09-15 15:02:49,175 INFO L78 Accepts]: Start accepts. Automaton has 1361 states and 1709 transitions. Word has length 158 [2018-09-15 15:02:49,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:02:49,176 INFO L480 AbstractCegarLoop]: Abstraction has 1361 states and 1709 transitions. [2018-09-15 15:02:49,176 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 15:02:49,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1361 states and 1709 transitions. [2018-09-15 15:02:49,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2018-09-15 15:02:49,190 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:02:49,190 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:02:49,191 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:02:49,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1741866262, now seen corresponding path program 1 times [2018-09-15 15:02:49,191 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:02:49,192 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 244 with the following transitions: [2018-09-15 15:02:49,192 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], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [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], [1115], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-15 15:02:49,199 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:02:49,200 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:03:08,210 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 15:03:26,678 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:03:26,679 INFO L272 AbstractInterpreter]: Visited 188 different actions 369 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 15:03:26,697 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:03:45,792 INFO L232 lantSequenceWeakener]: Weakened 240 states. On average, predicates are now at 78.09% of their original sizes. [2018-09-15 15:03:45,792 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:03:45,977 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:03:45,977 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:03:45,977 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 15:03:45,977 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:03:45,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 15:03:45,978 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 15:03:45,979 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-15 15:03:45,979 INFO L87 Difference]: Start difference. First operand 1361 states and 1709 transitions. Second operand 12 states. [2018-09-15 15:03:59,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:03:59,162 INFO L93 Difference]: Finished difference Result 2411 states and 3681 transitions. [2018-09-15 15:03:59,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 15:03:59,173 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 243 [2018-09-15 15:03:59,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:03:59,184 INFO L225 Difference]: With dead ends: 2411 [2018-09-15 15:03:59,184 INFO L226 Difference]: Without dead ends: 1983 [2018-09-15 15:03:59,187 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 250 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-15 15:03:59,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2018-09-15 15:03:59,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 1980. [2018-09-15 15:03:59,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1980 states. [2018-09-15 15:03:59,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1980 states to 1980 states and 2346 transitions. [2018-09-15 15:03:59,245 INFO L78 Accepts]: Start accepts. Automaton has 1980 states and 2346 transitions. Word has length 243 [2018-09-15 15:03:59,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:03:59,246 INFO L480 AbstractCegarLoop]: Abstraction has 1980 states and 2346 transitions. [2018-09-15 15:03:59,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 15:03:59,247 INFO L276 IsEmpty]: Start isEmpty. Operand 1980 states and 2346 transitions. [2018-09-15 15:03:59,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2018-09-15 15:03:59,253 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:03:59,253 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:03:59,254 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:03:59,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1517711008, now seen corresponding path program 1 times [2018-09-15 15:03:59,254 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:03:59,254 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 301 with the following transitions: [2018-09-15 15:03:59,255 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], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [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 15:03:59,270 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:03:59,270 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:04:22,552 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 15:04:45,670 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:04:45,671 INFO L272 AbstractInterpreter]: Visited 245 different actions 483 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 15:04:45,715 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:05:09,878 INFO L232 lantSequenceWeakener]: Weakened 297 states. On average, predicates are now at 77.94% of their original sizes. [2018-09-15 15:05:09,878 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:05:09,991 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:05:09,992 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:05:09,992 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 15:05:09,992 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:05:09,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 15:05:09,993 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 15:05:09,993 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-15 15:05:09,994 INFO L87 Difference]: Start difference. First operand 1980 states and 2346 transitions. Second operand 12 states. [2018-09-15 15:05:16,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:05:16,820 INFO L93 Difference]: Finished difference Result 3030 states and 4318 transitions. [2018-09-15 15:05:16,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 15:05:16,831 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 300 [2018-09-15 15:05:16,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:05:16,843 INFO L225 Difference]: With dead ends: 3030 [2018-09-15 15:05:16,843 INFO L226 Difference]: Without dead ends: 2602 [2018-09-15 15:05:16,847 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 307 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-15 15:05:16,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2602 states. [2018-09-15 15:05:16,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2602 to 2599. [2018-09-15 15:05:16,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2599 states. [2018-09-15 15:05:16,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2599 states to 2599 states and 2983 transitions. [2018-09-15 15:05:16,917 INFO L78 Accepts]: Start accepts. Automaton has 2599 states and 2983 transitions. Word has length 300 [2018-09-15 15:05:16,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:05:16,918 INFO L480 AbstractCegarLoop]: Abstraction has 2599 states and 2983 transitions. [2018-09-15 15:05:16,918 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 15:05:16,918 INFO L276 IsEmpty]: Start isEmpty. Operand 2599 states and 2983 transitions. [2018-09-15 15:05:16,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2018-09-15 15:05:16,924 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:05:16,924 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:05:16,925 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:05:16,925 INFO L82 PathProgramCache]: Analyzing trace with hash -817160319, now seen corresponding path program 1 times [2018-09-15 15:05:16,925 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:05:16,925 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 302 with the following transitions: [2018-09-15 15:05:16,926 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], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [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 15:05:16,931 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:05:16,931 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:05:39,683 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 15:06:02,441 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:06:02,441 INFO L272 AbstractInterpreter]: Visited 246 different actions 485 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 15:06:02,481 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:06:26,583 INFO L232 lantSequenceWeakener]: Weakened 298 states. On average, predicates are now at 77.93% of their original sizes. [2018-09-15 15:06:26,584 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:06:26,737 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:06:26,737 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:06:26,737 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-15 15:06:26,737 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:06:26,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-15 15:06:26,738 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-15 15:06:26,738 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-09-15 15:06:26,739 INFO L87 Difference]: Start difference. First operand 2599 states and 2983 transitions. Second operand 13 states. Received shutdown request... [2018-09-15 15:06:29,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-15 15:06:29,102 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-15 15:06:29,106 WARN L206 ceAbstractionStarter]: Timeout [2018-09-15 15:06:29,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 03:06:29 BoogieIcfgContainer [2018-09-15 15:06:29,107 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 15:06:29,107 INFO L168 Benchmark]: Toolchain (without parser) took 262397.27 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 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 1.3 GB. Max. memory is 7.1 GB. [2018-09-15 15:06:29,109 INFO L168 Benchmark]: CDTParser took 0.24 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 15:06:29,110 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1349.34 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: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. [2018-09-15 15:06:29,111 INFO L168 Benchmark]: Boogie Procedure Inliner took 568.36 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 856.7 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -987.8 MB). Peak memory consumption was 78.9 MB. Max. memory is 7.1 GB. [2018-09-15 15:06:29,112 INFO L168 Benchmark]: Boogie Preprocessor took 238.99 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. [2018-09-15 15:06:29,112 INFO L168 Benchmark]: RCFGBuilder took 9482.04 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: 307.3 MB). Peak memory consumption was 307.3 MB. Max. memory is 7.1 GB. [2018-09-15 15:06:29,113 INFO L168 Benchmark]: TraceAbstraction took 250751.97 ms. Allocated memory was 2.4 GB in the beginning and 4.1 GB in the end (delta: 1.7 GB). Free memory was 2.0 GB in the beginning and 2.7 GB in the end (delta: -755.4 MB). Peak memory consumption was 991.0 MB. Max. memory is 7.1 GB. [2018-09-15 15:06:29,118 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 1349.34 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: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 568.36 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 856.7 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -987.8 MB). Peak memory consumption was 78.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 238.99 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9482.04 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: 307.3 MB). Peak memory consumption was 307.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 250751.97 ms. Allocated memory was 2.4 GB in the beginning and 4.1 GB in the end (delta: 1.7 GB). Free memory was 2.0 GB in the beginning and 2.7 GB in the end (delta: -755.4 MB). Peak memory consumption was 991.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 172]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 172). Cancelled while BasicCegarLoop was constructing difference of abstraction (2599states) and FLOYD_HOARE automaton (currently 10 states, 13 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 20 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 250.6s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 44.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1868 SDtfs, 4948 SDslu, 2266 SDs, 0 SdLazy, 19687 SolverSat, 2040 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 38.8s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 1090 GetRequests, 1015 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2599occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 134.7s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.998084455129658 AbsIntWeakeningRatio, 0.08876298394711993 AbsIntAvgWeakeningVarsNumRemoved, 13.142587346553352 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 11 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_label11_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_15-06-29-132.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label11_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_15-06-29-132.csv Completed graceful shutdown