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_label35_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 12:16:32,617 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 12:16:32,619 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 12:16:32,632 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 12:16:32,632 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 12:16:32,633 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 12:16:32,634 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 12:16:32,636 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 12:16:32,638 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 12:16:32,639 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 12:16:32,640 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 12:16:32,640 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 12:16:32,641 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 12:16:32,642 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 12:16:32,643 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 12:16:32,644 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 12:16:32,644 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 12:16:32,646 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 12:16:32,648 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 12:16:32,650 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 12:16:32,651 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 12:16:32,652 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 12:16:32,654 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 12:16:32,655 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 12:16:32,655 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 12:16:32,656 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 12:16:32,657 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 12:16:32,658 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 12:16:32,658 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 12:16:32,660 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 12:16:32,660 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 12:16:32,661 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 12:16:32,661 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 12:16:32,661 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 12:16:32,662 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 12:16:32,663 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 12:16:32,663 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 12:16:32,684 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 12:16:32,685 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 12:16:32,686 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 12:16:32,686 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 12:16:32,686 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 12:16:32,686 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 12:16:32,687 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 12:16:32,687 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 12:16:32,687 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 12:16:32,687 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 12:16:32,687 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 12:16:32,688 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 12:16:32,688 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 12:16:32,688 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 12:16:32,689 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 12:16:32,689 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 12:16:32,690 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 12:16:32,690 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 12:16:32,690 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 12:16:32,690 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 12:16:32,690 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 12:16:32,690 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 12:16:32,691 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 12:16:32,691 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 12:16:32,691 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 12:16:32,691 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 12:16:32,693 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 12:16:32,693 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 12:16:32,693 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 12:16:32,693 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 12:16:32,694 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 12:16:32,694 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 12:16:32,694 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 12:16:32,763 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 12:16:32,779 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 12:16:32,785 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 12:16:32,787 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 12:16:32,787 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 12:16:32,788 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label35_true-unreach-call.c [2018-09-15 12:16:33,149 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6410afa10/2e461636ea1d4e54bdccd5dfe2ba119c/FLAG95ad82a57 [2018-09-15 12:16:33,505 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 12:16:33,506 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label35_true-unreach-call.c [2018-09-15 12:16:33,531 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6410afa10/2e461636ea1d4e54bdccd5dfe2ba119c/FLAG95ad82a57 [2018-09-15 12:16:33,554 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6410afa10/2e461636ea1d4e54bdccd5dfe2ba119c [2018-09-15 12:16:33,569 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 12:16:33,576 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 12:16:33,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 12:16:33,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 12:16:33,588 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 12:16:33,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:16:33" (1/1) ... [2018-09-15 12:16:33,594 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6652310c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:16:33, skipping insertion in model container [2018-09-15 12:16:33,594 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:16:33" (1/1) ... [2018-09-15 12:16:33,607 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 12:16:34,506 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:16:34,526 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 12:16:34,782 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:16:34,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:16:34 WrapperNode [2018-09-15 12:16:34,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 12:16:34,935 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 12:16:34,936 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 12:16:34,936 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 12:16:34,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:16:34" (1/1) ... [2018-09-15 12:16:35,020 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:16:34" (1/1) ... [2018-09-15 12:16:35,199 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 12:16:35,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 12:16:35,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 12:16:35,200 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 12:16:35,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:16:34" (1/1) ... [2018-09-15 12:16:35,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:16:34" (1/1) ... [2018-09-15 12:16:35,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:16:34" (1/1) ... [2018-09-15 12:16:35,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:16:34" (1/1) ... [2018-09-15 12:16:35,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:16:34" (1/1) ... [2018-09-15 12:16:35,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:16:34" (1/1) ... [2018-09-15 12:16:35,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:16:34" (1/1) ... [2018-09-15 12:16:35,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 12:16:35,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 12:16:35,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 12:16:35,873 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 12:16:35,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:16:34" (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 12:16:35,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 12:16:35,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 12:16:35,950 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 12:16:35,951 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 12:16:35,951 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 12:16:35,951 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 12:16:35,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 12:16:35,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 12:16:35,952 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 12:16:35,952 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 12:16:42,986 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 12:16:42,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:16:42 BoogieIcfgContainer [2018-09-15 12:16:42,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 12:16:42,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 12:16:42,989 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 12:16:42,992 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 12:16:42,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 12:16:33" (1/3) ... [2018-09-15 12:16:42,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d479be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:16:42, skipping insertion in model container [2018-09-15 12:16:42,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:16:34" (2/3) ... [2018-09-15 12:16:42,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d479be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:16:42, skipping insertion in model container [2018-09-15 12:16:42,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:16:42" (3/3) ... [2018-09-15 12:16:42,996 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label35_true-unreach-call.c [2018-09-15 12:16:43,006 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 12:16:43,015 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 12:16:43,072 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 12:16:43,073 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 12:16:43,073 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 12:16:43,073 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 12:16:43,074 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 12:16:43,074 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 12:16:43,074 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 12:16:43,074 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 12:16:43,074 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 12:16:43,104 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-09-15 12:16:43,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-09-15 12:16:43,116 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:16:43,121 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] [2018-09-15 12:16:43,122 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:16:43,128 INFO L82 PathProgramCache]: Analyzing trace with hash -524388215, now seen corresponding path program 1 times [2018-09-15 12:16:43,130 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:16:43,131 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 44 with the following transitions: [2018-09-15 12:16:43,133 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], [317], [319], [1639], [1643], [1649], [1653], [1662], [1663], [1664], [1666] [2018-09-15 12:16:43,203 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:16:43,203 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:16:44,345 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:16:44,348 INFO L272 AbstractInterpreter]: Visited 42 different actions 42 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 12:16:44,400 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:16:45,002 INFO L232 lantSequenceWeakener]: Weakened 41 states. On average, predicates are now at 80.22% of their original sizes. [2018-09-15 12:16:45,002 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:16:45,294 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:16:45,296 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:16:45,296 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 12:16:45,296 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:16:45,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 12:16:45,310 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 12:16:45,311 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 12:16:45,316 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 6 states. [2018-09-15 12:16:52,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:16:52,828 INFO L93 Difference]: Finished difference Result 1184 states and 2139 transitions. [2018-09-15 12:16:52,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 12:16:52,832 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2018-09-15 12:16:52,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:16:52,854 INFO L225 Difference]: With dead ends: 1184 [2018-09-15 12:16:52,854 INFO L226 Difference]: Without dead ends: 744 [2018-09-15 12:16:52,866 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 42 GetRequests, 38 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 12:16:52,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-09-15 12:16:52,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 742. [2018-09-15 12:16:52,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2018-09-15 12:16:52,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1072 transitions. [2018-09-15 12:16:52,972 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1072 transitions. Word has length 43 [2018-09-15 12:16:52,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:16:52,972 INFO L480 AbstractCegarLoop]: Abstraction has 742 states and 1072 transitions. [2018-09-15 12:16:52,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 12:16:52,973 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1072 transitions. [2018-09-15 12:16:52,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-09-15 12:16:52,980 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:16:52,981 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:16:52,981 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:16:52,981 INFO L82 PathProgramCache]: Analyzing trace with hash 360966111, now seen corresponding path program 1 times [2018-09-15 12:16:52,981 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:16:52,982 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 140 with the following transitions: [2018-09-15 12:16:52,982 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], [317], [319], [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 12:16:52,993 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:16:52,995 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:16:56,199 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:17:06,359 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:17:06,359 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 12:17:06,372 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:17:07,937 INFO L232 lantSequenceWeakener]: Weakened 137 states. On average, predicates are now at 78.25% of their original sizes. [2018-09-15 12:17:07,937 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:17:09,465 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:17:09,466 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:17:09,466 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 12:17:09,467 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:17:09,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 12:17:09,469 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 12:17:09,469 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-15 12:17:09,470 INFO L87 Difference]: Start difference. First operand 742 states and 1072 transitions. Second operand 12 states. [2018-09-15 12:17:27,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:17:27,120 INFO L93 Difference]: Finished difference Result 1798 states and 3052 transitions. [2018-09-15 12:17:27,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-15 12:17:27,121 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 139 [2018-09-15 12:17:27,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:17:27,131 INFO L225 Difference]: With dead ends: 1798 [2018-09-15 12:17:27,132 INFO L226 Difference]: Without dead ends: 1370 [2018-09-15 12:17:27,136 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 149 GetRequests, 98 SyntacticMatches, 30 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=114, Invalid=392, Unknown=0, NotChecked=0, Total=506 [2018-09-15 12:17:27,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1370 states. [2018-09-15 12:17:27,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1370 to 1365. [2018-09-15 12:17:27,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1365 states. [2018-09-15 12:17:27,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 1724 transitions. [2018-09-15 12:17:27,204 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 1724 transitions. Word has length 139 [2018-09-15 12:17:27,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:17:27,205 INFO L480 AbstractCegarLoop]: Abstraction has 1365 states and 1724 transitions. [2018-09-15 12:17:27,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 12:17:27,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 1724 transitions. [2018-09-15 12:17:27,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2018-09-15 12:17:27,215 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:17:27,215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:17:27,216 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:17:27,216 INFO L82 PathProgramCache]: Analyzing trace with hash -2101964052, now seen corresponding path program 1 times [2018-09-15 12:17:27,216 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:17:27,216 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 282 with the following transitions: [2018-09-15 12:17:27,217 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], [317], [319], [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 12:17:27,230 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:17:27,231 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:17:33,973 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:17:46,394 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:17:46,395 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 12:17:46,400 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:17:48,378 INFO L232 lantSequenceWeakener]: Weakened 279 states. On average, predicates are now at 77.75% of their original sizes. [2018-09-15 12:17:48,378 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:17:49,535 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:17:49,536 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:17:49,536 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 12:17:49,537 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:17:49,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 12:17:49,538 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 12:17:49,538 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-15 12:17:49,538 INFO L87 Difference]: Start difference. First operand 1365 states and 1724 transitions. Second operand 12 states. [2018-09-15 12:18:17,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:18:17,138 INFO L93 Difference]: Finished difference Result 2415 states and 3696 transitions. [2018-09-15 12:18:17,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 12:18:17,141 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 281 [2018-09-15 12:18:17,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:18:17,157 INFO L225 Difference]: With dead ends: 2415 [2018-09-15 12:18:17,157 INFO L226 Difference]: Without dead ends: 1987 [2018-09-15 12:18:17,161 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 288 GetRequests, 239 SyntacticMatches, 31 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-15 12:18:17,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1987 states. [2018-09-15 12:18:17,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1987 to 1984. [2018-09-15 12:18:17,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1984 states. [2018-09-15 12:18:17,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1984 states to 1984 states and 2361 transitions. [2018-09-15 12:18:17,245 INFO L78 Accepts]: Start accepts. Automaton has 1984 states and 2361 transitions. Word has length 281 [2018-09-15 12:18:17,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:18:17,246 INFO L480 AbstractCegarLoop]: Abstraction has 1984 states and 2361 transitions. [2018-09-15 12:18:17,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 12:18:17,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1984 states and 2361 transitions. [2018-09-15 12:18:17,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2018-09-15 12:18:17,254 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:18:17,255 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, 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] [2018-09-15 12:18:17,255 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:18:17,256 INFO L82 PathProgramCache]: Analyzing trace with hash -782680883, now seen corresponding path program 1 times [2018-09-15 12:18:17,256 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:18:17,256 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 283 with the following transitions: [2018-09-15 12:18:17,257 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], [305], [313], [317], [319], [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 12:18:17,267 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:18:17,267 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:18:22,890 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:18:45,516 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:18:45,516 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 12:18:45,521 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:18:47,546 INFO L232 lantSequenceWeakener]: Weakened 280 states. On average, predicates are now at 77.75% of their original sizes. [2018-09-15 12:18:47,547 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:18:51,921 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:18:51,921 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:18:51,922 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-15 12:18:51,922 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:18:51,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-15 12:18:51,923 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-15 12:18:51,923 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2018-09-15 12:18:51,923 INFO L87 Difference]: Start difference. First operand 1984 states and 2361 transitions. Second operand 15 states. [2018-09-15 12:19:28,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:19:28,108 INFO L93 Difference]: Finished difference Result 3503 states and 5269 transitions. [2018-09-15 12:19:28,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-09-15 12:19:28,109 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 282 [2018-09-15 12:19:28,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:19:28,126 INFO L225 Difference]: With dead ends: 3503 [2018-09-15 12:19:28,127 INFO L226 Difference]: Without dead ends: 3075 [2018-09-15 12:19:28,131 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 297 GetRequests, 238 SyntacticMatches, 30 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=213, Invalid=717, Unknown=0, NotChecked=0, Total=930 [2018-09-15 12:19:28,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3075 states. [2018-09-15 12:19:28,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3075 to 2640. [2018-09-15 12:19:28,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2640 states. [2018-09-15 12:19:28,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2640 states to 2640 states and 3041 transitions. [2018-09-15 12:19:28,224 INFO L78 Accepts]: Start accepts. Automaton has 2640 states and 3041 transitions. Word has length 282 [2018-09-15 12:19:28,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:19:28,225 INFO L480 AbstractCegarLoop]: Abstraction has 2640 states and 3041 transitions. [2018-09-15 12:19:28,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-15 12:19:28,225 INFO L276 IsEmpty]: Start isEmpty. Operand 2640 states and 3041 transitions. [2018-09-15 12:19:28,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2018-09-15 12:19:28,231 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:19:28,232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:19:28,232 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:19:28,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1491337604, now seen corresponding path program 1 times [2018-09-15 12:19:28,232 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:19:28,233 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 319 with the following transitions: [2018-09-15 12:19:28,233 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], [317], [319], [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 12:19:28,241 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:19:28,241 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:19:35,053 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:20:00,876 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:20:00,876 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 12:20:00,882 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:20:07,640 INFO L232 lantSequenceWeakener]: Weakened 316 states. On average, predicates are now at 77.7% of their original sizes. [2018-09-15 12:20:07,641 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:20:13,597 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:20:13,598 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:20:13,598 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-15 12:20:13,598 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:20:13,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-15 12:20:13,599 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-15 12:20:13,599 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2018-09-15 12:20:13,599 INFO L87 Difference]: Start difference. First operand 2640 states and 3041 transitions. Second operand 18 states. Received shutdown request... [2018-09-15 12:20:22,938 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-15 12:20:22,939 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-15 12:20:22,947 WARN L206 ceAbstractionStarter]: Timeout [2018-09-15 12:20:22,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 12:20:22 BoogieIcfgContainer [2018-09-15 12:20:22,948 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 12:20:22,949 INFO L168 Benchmark]: Toolchain (without parser) took 229378.53 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -176.7 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-09-15 12:20:22,951 INFO L168 Benchmark]: CDTParser took 0.58 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 12:20:22,952 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1357.38 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 12:20:22,953 INFO L168 Benchmark]: Boogie Procedure Inliner took 263.70 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-15 12:20:22,953 INFO L168 Benchmark]: Boogie Preprocessor took 672.38 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 861.4 MB). Free memory was 1.2 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 12:20:22,954 INFO L168 Benchmark]: RCFGBuilder took 7115.27 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: 290.8 MB). Peak memory consumption was 290.8 MB. Max. memory is 7.1 GB. [2018-09-15 12:20:22,955 INFO L168 Benchmark]: TraceAbstraction took 219959.66 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 1.6 GB in the end (delta: 384.8 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-09-15 12:20:22,961 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58 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 1357.38 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 263.70 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 672.38 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 861.4 MB). Free memory was 1.2 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 7115.27 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: 290.8 MB). Peak memory consumption was 290.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 219959.66 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 1.6 GB in the end (delta: 384.8 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 115]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 115). Cancelled while BasicCegarLoop was constructing difference of abstraction (2640states) and FLOYD_HOARE automaton (currently 16 states, 18 states before enhancement), while ReachableStatesComputation was computing reachable states (1373 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 219.8s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 98.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1956 SDtfs, 9736 SDslu, 1920 SDs, 0 SdLazy, 19049 SolverSat, 2161 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 89.6s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 1103 GetRequests, 883 SyntacticMatches, 122 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1734 ImplicationChecksByTransitivity, 15.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2640occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 94.7s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9958681082211942 AbsIntWeakeningRatio, 0.0888468809073724 AbsIntAvgWeakeningVarsNumRemoved, 456.4962192816635 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 445 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_label35_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_12-20-22-976.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label35_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_12-20-22-976.csv Completed graceful shutdown