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/Problem16_label36_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 12:27:07,793 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 12:27:07,795 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 12:27:07,807 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 12:27:07,808 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 12:27:07,809 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 12:27:07,810 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 12:27:07,821 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 12:27:07,823 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 12:27:07,824 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 12:27:07,825 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 12:27:07,825 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 12:27:07,826 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 12:27:07,827 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 12:27:07,828 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 12:27:07,829 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 12:27:07,830 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 12:27:07,831 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 12:27:07,833 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 12:27:07,835 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 12:27:07,836 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 12:27:07,837 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 12:27:07,839 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 12:27:07,840 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 12:27:07,840 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 12:27:07,841 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 12:27:07,842 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 12:27:07,842 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 12:27:07,843 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 12:27:07,844 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 12:27:07,844 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 12:27:07,845 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 12:27:07,845 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 12:27:07,845 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 12:27:07,846 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 12:27:07,847 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 12:27:07,847 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 12:27:07,862 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 12:27:07,863 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 12:27:07,864 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 12:27:07,864 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 12:27:07,864 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 12:27:07,864 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 12:27:07,864 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 12:27:07,865 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 12:27:07,865 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 12:27:07,865 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 12:27:07,865 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 12:27:07,866 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 12:27:07,866 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 12:27:07,866 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 12:27:07,866 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 12:27:07,866 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 12:27:07,867 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 12:27:07,867 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 12:27:07,867 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 12:27:07,867 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 12:27:07,867 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 12:27:07,868 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 12:27:07,868 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 12:27:07,868 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 12:27:07,868 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 12:27:07,868 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 12:27:07,868 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 12:27:07,869 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 12:27:07,869 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 12:27:07,869 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 12:27:07,869 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 12:27:07,869 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 12:27:07,870 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 12:27:07,930 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 12:27:07,946 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 12:27:07,954 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 12:27:07,956 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 12:27:07,957 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 12:27:07,958 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label36_true-unreach-call.c [2018-09-15 12:27:08,330 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f56e458b/e91f041ad5a44b7a817e5d1aea1b345b/FLAG616cc6b9d [2018-09-15 12:27:08,681 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 12:27:08,682 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label36_true-unreach-call.c [2018-09-15 12:27:08,699 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f56e458b/e91f041ad5a44b7a817e5d1aea1b345b/FLAG616cc6b9d [2018-09-15 12:27:08,714 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f56e458b/e91f041ad5a44b7a817e5d1aea1b345b [2018-09-15 12:27:08,725 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 12:27:08,728 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 12:27:08,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 12:27:08,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 12:27:08,739 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 12:27:08,740 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:27:08" (1/1) ... [2018-09-15 12:27:08,744 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@674df799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:27:08, skipping insertion in model container [2018-09-15 12:27:08,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:27:08" (1/1) ... [2018-09-15 12:27:08,756 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 12:27:09,493 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:27:09,514 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 12:27:09,763 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:27:09,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:27:09 WrapperNode [2018-09-15 12:27:09,871 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 12:27:09,873 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 12:27:09,873 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 12:27:09,873 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 12:27:09,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:27:09" (1/1) ... [2018-09-15 12:27:09,939 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:27:09" (1/1) ... [2018-09-15 12:27:10,070 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 12:27:10,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 12:27:10,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 12:27:10,071 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 12:27:10,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:27:09" (1/1) ... [2018-09-15 12:27:10,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:27:09" (1/1) ... [2018-09-15 12:27:10,384 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:27:09" (1/1) ... [2018-09-15 12:27:10,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:27:09" (1/1) ... [2018-09-15 12:27:10,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:27:09" (1/1) ... [2018-09-15 12:27:10,474 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:27:09" (1/1) ... [2018-09-15 12:27:10,500 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:27:09" (1/1) ... [2018-09-15 12:27:10,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 12:27:10,529 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 12:27:10,529 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 12:27:10,529 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 12:27:10,530 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:27:09" (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 12:27:10,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 12:27:10,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 12:27:10,604 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 12:27:10,604 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 12:27:10,604 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 12:27:10,604 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 12:27:10,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 12:27:10,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 12:27:10,605 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 12:27:10,605 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 12:27:16,473 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 12:27:16,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:27:16 BoogieIcfgContainer [2018-09-15 12:27:16,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 12:27:16,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 12:27:16,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 12:27:16,480 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 12:27:16,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 12:27:08" (1/3) ... [2018-09-15 12:27:16,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@429f3f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:27:16, skipping insertion in model container [2018-09-15 12:27:16,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:27:09" (2/3) ... [2018-09-15 12:27:16,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@429f3f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:27:16, skipping insertion in model container [2018-09-15 12:27:16,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:27:16" (3/3) ... [2018-09-15 12:27:16,486 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label36_true-unreach-call.c [2018-09-15 12:27:16,497 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 12:27:16,510 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 12:27:16,582 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 12:27:16,583 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 12:27:16,583 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 12:27:16,583 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 12:27:16,583 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 12:27:16,584 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 12:27:16,584 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 12:27:16,584 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 12:27:16,584 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 12:27:16,614 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-09-15 12:27:16,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-09-15 12:27:16,629 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:27:16,630 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 12:27:16,632 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:27:16,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1717758157, now seen corresponding path program 1 times [2018-09-15 12:27:16,639 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:27:16,640 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 44 with the following transitions: [2018-09-15 12:27:16,643 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [423], [425], [1556], [1560], [1566], [1570], [1579], [1580], [1581], [1583] [2018-09-15 12:27:16,706 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:27:16,706 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:27:17,968 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:27:17,971 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 12:27:17,988 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:27:18,741 INFO L232 lantSequenceWeakener]: Weakened 41 states. On average, predicates are now at 80.22% of their original sizes. [2018-09-15 12:27:18,741 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:27:19,038 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:27:19,040 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:27:19,040 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 12:27:19,041 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:27:19,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 12:27:19,055 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 12:27:19,056 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 12:27:19,059 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 6 states. [2018-09-15 12:27:25,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:27:25,917 INFO L93 Difference]: Finished difference Result 1158 states and 2145 transitions. [2018-09-15 12:27:25,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 12:27:25,921 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2018-09-15 12:27:25,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:27:25,947 INFO L225 Difference]: With dead ends: 1158 [2018-09-15 12:27:25,947 INFO L226 Difference]: Without dead ends: 746 [2018-09-15 12:27:25,958 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 12:27:25,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2018-09-15 12:27:26,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 744. [2018-09-15 12:27:26,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-09-15 12:27:26,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1075 transitions. [2018-09-15 12:27:26,086 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1075 transitions. Word has length 43 [2018-09-15 12:27:26,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:27:26,087 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1075 transitions. [2018-09-15 12:27:26,087 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 12:27:26,087 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1075 transitions. [2018-09-15 12:27:26,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-09-15 12:27:26,094 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:27:26,095 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] [2018-09-15 12:27:26,095 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:27:26,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1898160208, now seen corresponding path program 1 times [2018-09-15 12:27:26,096 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:27:26,096 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 136 with the following transitions: [2018-09-15 12:27:26,096 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [423], [425], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 12:27:26,105 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:27:26,105 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:27:29,397 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:27:35,808 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:27:35,809 INFO L272 AbstractInterpreter]: Visited 99 different actions 191 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 12:27:35,844 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:27:38,885 INFO L232 lantSequenceWeakener]: Weakened 133 states. On average, predicates are now at 78.28% of their original sizes. [2018-09-15 12:27:38,886 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:27:40,747 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:27:40,747 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:27:40,748 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 12:27:40,748 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:27:40,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 12:27:40,751 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 12:27:40,751 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 12:27:40,751 INFO L87 Difference]: Start difference. First operand 744 states and 1075 transitions. Second operand 11 states. [2018-09-15 12:27:57,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:27:57,109 INFO L93 Difference]: Finished difference Result 1826 states and 3140 transitions. [2018-09-15 12:27:57,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 12:27:57,110 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 135 [2018-09-15 12:27:57,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:27:57,118 INFO L225 Difference]: With dead ends: 1826 [2018-09-15 12:27:57,119 INFO L226 Difference]: Without dead ends: 1426 [2018-09-15 12:27:57,122 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 141 GetRequests, 94 SyntacticMatches, 31 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 12:27:57,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2018-09-15 12:27:57,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1423. [2018-09-15 12:27:57,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1423 states. [2018-09-15 12:27:57,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 1772 transitions. [2018-09-15 12:27:57,192 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 1772 transitions. Word has length 135 [2018-09-15 12:27:57,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:27:57,193 INFO L480 AbstractCegarLoop]: Abstraction has 1423 states and 1772 transitions. [2018-09-15 12:27:57,193 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 12:27:57,193 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 1772 transitions. [2018-09-15 12:27:57,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-09-15 12:27:57,198 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:27:57,198 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] [2018-09-15 12:27:57,199 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:27:57,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1640453336, now seen corresponding path program 1 times [2018-09-15 12:27:57,199 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:27:57,199 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 172 with the following transitions: [2018-09-15 12:27:57,200 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [423], [425], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 12:27:57,210 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:27:57,210 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:28:00,154 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:28:07,237 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:28:07,237 INFO L272 AbstractInterpreter]: Visited 135 different actions 263 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 12:28:07,272 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:28:10,054 INFO L232 lantSequenceWeakener]: Weakened 169 states. On average, predicates are now at 78.06% of their original sizes. [2018-09-15 12:28:10,055 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:28:11,045 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:28:11,045 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:28:11,046 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 12:28:11,046 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:28:11,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 12:28:11,047 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 12:28:11,047 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 12:28:11,048 INFO L87 Difference]: Start difference. First operand 1423 states and 1772 transitions. Second operand 11 states. [2018-09-15 12:28:32,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:28:32,232 INFO L93 Difference]: Finished difference Result 2505 states and 3837 transitions. [2018-09-15 12:28:32,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 12:28:32,234 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 171 [2018-09-15 12:28:32,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:28:32,248 INFO L225 Difference]: With dead ends: 2505 [2018-09-15 12:28:32,248 INFO L226 Difference]: Without dead ends: 2105 [2018-09-15 12:28:32,251 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 177 GetRequests, 130 SyntacticMatches, 31 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 12:28:32,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2105 states. [2018-09-15 12:28:32,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2105 to 2102. [2018-09-15 12:28:32,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2102 states. [2018-09-15 12:28:32,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2102 states to 2102 states and 2469 transitions. [2018-09-15 12:28:32,322 INFO L78 Accepts]: Start accepts. Automaton has 2102 states and 2469 transitions. Word has length 171 [2018-09-15 12:28:32,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:28:32,323 INFO L480 AbstractCegarLoop]: Abstraction has 2102 states and 2469 transitions. [2018-09-15 12:28:32,323 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 12:28:32,323 INFO L276 IsEmpty]: Start isEmpty. Operand 2102 states and 2469 transitions. [2018-09-15 12:28:32,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2018-09-15 12:28:32,328 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:28:32,328 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] [2018-09-15 12:28:32,328 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:28:32,329 INFO L82 PathProgramCache]: Analyzing trace with hash -152655855, now seen corresponding path program 1 times [2018-09-15 12:28:32,329 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:28:32,329 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 197 with the following transitions: [2018-09-15 12:28:32,329 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [423], [425], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1004], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 12:28:32,336 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:28:32,336 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:28:35,593 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:28:43,356 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:28:43,356 INFO L272 AbstractInterpreter]: Visited 160 different actions 313 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 12:28:43,394 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:28:46,388 INFO L232 lantSequenceWeakener]: Weakened 194 states. On average, predicates are now at 77.96% of their original sizes. [2018-09-15 12:28:46,389 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:28:47,392 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:28:47,392 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:28:47,392 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 12:28:47,393 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:28:47,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 12:28:47,394 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 12:28:47,394 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-15 12:28:47,395 INFO L87 Difference]: Start difference. First operand 2102 states and 2469 transitions. Second operand 12 states. [2018-09-15 12:29:10,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:29:10,378 INFO L93 Difference]: Finished difference Result 3184 states and 4534 transitions. [2018-09-15 12:29:10,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 12:29:10,379 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 196 [2018-09-15 12:29:10,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:29:10,394 INFO L225 Difference]: With dead ends: 3184 [2018-09-15 12:29:10,394 INFO L226 Difference]: Without dead ends: 2784 [2018-09-15 12:29:10,398 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 203 GetRequests, 154 SyntacticMatches, 31 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-15 12:29:10,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2018-09-15 12:29:10,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 2781. [2018-09-15 12:29:10,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2781 states. [2018-09-15 12:29:10,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2781 states to 2781 states and 3166 transitions. [2018-09-15 12:29:10,499 INFO L78 Accepts]: Start accepts. Automaton has 2781 states and 3166 transitions. Word has length 196 [2018-09-15 12:29:10,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:29:10,500 INFO L480 AbstractCegarLoop]: Abstraction has 2781 states and 3166 transitions. [2018-09-15 12:29:10,500 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 12:29:10,500 INFO L276 IsEmpty]: Start isEmpty. Operand 2781 states and 3166 transitions. [2018-09-15 12:29:10,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2018-09-15 12:29:10,507 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:29:10,508 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] [2018-09-15 12:29:10,508 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:29:10,508 INFO L82 PathProgramCache]: Analyzing trace with hash -1689277471, now seen corresponding path program 1 times [2018-09-15 12:29:10,508 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:29:10,509 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 237 with the following transitions: [2018-09-15 12:29:10,509 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [423], [425], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1164], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 12:29:10,526 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:29:10,526 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:29:24,645 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:29:24,646 INFO L272 AbstractInterpreter]: Visited 200 different actions 393 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 12:29:24,670 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:29:27,780 INFO L232 lantSequenceWeakener]: Weakened 234 states. On average, predicates are now at 77.84% of their original sizes. [2018-09-15 12:29:27,780 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:29:28,813 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:29:28,814 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:29:28,814 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 12:29:28,814 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:29:28,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 12:29:28,815 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 12:29:28,815 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-15 12:29:28,815 INFO L87 Difference]: Start difference. First operand 2781 states and 3166 transitions. Second operand 12 states. [2018-09-15 12:29:53,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:29:53,577 INFO L93 Difference]: Finished difference Result 3863 states and 5231 transitions. [2018-09-15 12:29:53,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 12:29:53,579 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 236 [2018-09-15 12:29:53,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:29:53,593 INFO L225 Difference]: With dead ends: 3863 [2018-09-15 12:29:53,594 INFO L226 Difference]: Without dead ends: 3463 [2018-09-15 12:29:53,598 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 243 GetRequests, 194 SyntacticMatches, 31 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-15 12:29:53,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3463 states. [2018-09-15 12:29:53,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3463 to 3460. [2018-09-15 12:29:53,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3460 states. [2018-09-15 12:29:53,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3460 states to 3460 states and 3863 transitions. [2018-09-15 12:29:53,712 INFO L78 Accepts]: Start accepts. Automaton has 3460 states and 3863 transitions. Word has length 236 [2018-09-15 12:29:53,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:29:53,712 INFO L480 AbstractCegarLoop]: Abstraction has 3460 states and 3863 transitions. [2018-09-15 12:29:53,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 12:29:53,713 INFO L276 IsEmpty]: Start isEmpty. Operand 3460 states and 3863 transitions. [2018-09-15 12:29:53,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2018-09-15 12:29:53,718 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:29:53,718 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-15 12:29:53,719 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:29:53,719 INFO L82 PathProgramCache]: Analyzing trace with hash -731968011, now seen corresponding path program 1 times [2018-09-15 12:29:53,719 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:29:53,719 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 264 with the following transitions: [2018-09-15 12:29:53,720 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [423], [425], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 12:29:53,723 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:29:53,724 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:29:55,507 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:30:15,819 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:30:15,819 INFO L272 AbstractInterpreter]: Visited 136 different actions 665 times. Merged at 7 different actions 29 times. Never widened. Found 6 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:30:15,824 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:30:18,026 INFO L232 lantSequenceWeakener]: Weakened 261 states. On average, predicates are now at 77.83% of their original sizes. [2018-09-15 12:30:18,027 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:30:18,912 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:30:18,913 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:30:18,913 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 12:30:18,913 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:30:18,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 12:30:18,915 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 12:30:18,915 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-15 12:30:18,916 INFO L87 Difference]: Start difference. First operand 3460 states and 3863 transitions. Second operand 11 states. [2018-09-15 12:30:42,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:30:42,545 INFO L93 Difference]: Finished difference Result 4496 states and 5839 transitions. [2018-09-15 12:30:42,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-15 12:30:42,546 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 263 [2018-09-15 12:30:42,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:30:42,561 INFO L225 Difference]: With dead ends: 4496 [2018-09-15 12:30:42,561 INFO L226 Difference]: Without dead ends: 4096 [2018-09-15 12:30:42,565 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 272 GetRequests, 222 SyntacticMatches, 31 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=98, Invalid=322, Unknown=0, NotChecked=0, Total=420 [2018-09-15 12:30:42,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4096 states. [2018-09-15 12:30:42,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4096 to 3814. [2018-09-15 12:30:42,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3814 states. [2018-09-15 12:30:42,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3814 states to 3814 states and 4252 transitions. [2018-09-15 12:30:42,697 INFO L78 Accepts]: Start accepts. Automaton has 3814 states and 4252 transitions. Word has length 263 [2018-09-15 12:30:42,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:30:42,698 INFO L480 AbstractCegarLoop]: Abstraction has 3814 states and 4252 transitions. [2018-09-15 12:30:42,698 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 12:30:42,698 INFO L276 IsEmpty]: Start isEmpty. Operand 3814 states and 4252 transitions. [2018-09-15 12:30:42,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2018-09-15 12:30:42,704 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:30:42,704 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] [2018-09-15 12:30:42,705 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:30:42,705 INFO L82 PathProgramCache]: Analyzing trace with hash -965225288, now seen corresponding path program 1 times [2018-09-15 12:30:42,705 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:30:42,705 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 284 with the following transitions: [2018-09-15 12:30:42,706 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [423], [425], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 12:30:42,711 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:30:42,711 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:31:12,476 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:31:12,477 INFO L272 AbstractInterpreter]: Visited 247 different actions 488 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 12:31:12,485 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:31:18,149 INFO L232 lantSequenceWeakener]: Weakened 281 states. On average, predicates are now at 77.75% of their original sizes. [2018-09-15 12:31:18,150 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:31:19,245 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:31:19,245 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:31:19,246 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-15 12:31:19,246 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:31:19,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-15 12:31:19,248 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-15 12:31:19,248 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-15 12:31:19,248 INFO L87 Difference]: Start difference. First operand 3814 states and 4252 transitions. Second operand 13 states. Received shutdown request... [2018-09-15 12:31:25,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 12:31:25,567 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-15 12:31:25,572 WARN L206 ceAbstractionStarter]: Timeout [2018-09-15 12:31:25,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 12:31:25 BoogieIcfgContainer [2018-09-15 12:31:25,572 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 12:31:25,573 INFO L168 Benchmark]: Toolchain (without parser) took 256847.37 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 4.0 GB in the end (delta: -2.6 GB). Peak memory consumption was 133.2 MB. Max. memory is 7.1 GB. [2018-09-15 12:31:25,575 INFO L168 Benchmark]: CDTParser took 0.22 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 12:31:25,575 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1142.36 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: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. [2018-09-15 12:31:25,576 INFO L168 Benchmark]: Boogie Procedure Inliner took 198.09 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-15 12:31:25,581 INFO L168 Benchmark]: Boogie Preprocessor took 457.33 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 839.9 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -974.9 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. [2018-09-15 12:31:25,582 INFO L168 Benchmark]: RCFGBuilder took 5946.32 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: 243.3 MB). Peak memory consumption was 243.3 MB. Max. memory is 7.1 GB. [2018-09-15 12:31:25,583 INFO L168 Benchmark]: TraceAbstraction took 249096.38 ms. Allocated memory was 2.4 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 4.0 GB in the end (delta: -2.0 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 12:31:25,590 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 1142.36 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: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 198.09 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 457.33 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 839.9 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -974.9 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5946.32 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: 243.3 MB). Peak memory consumption was 243.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 249096.38 ms. Allocated memory was 2.4 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 4.0 GB in the end (delta: -2.0 GB). There was no memory consumed. 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 (3814states) and FLOYD_HOARE automaton (currently 14 states, 13 states before enhancement), while ReachableStatesComputation was computing reachable states (1440 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 249.0s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 122.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2511 SDtfs, 10233 SDslu, 2755 SDs, 0 SdLazy, 29212 SolverSat, 3578 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 111.3s Time, PredicateUnifierStatistics: 14 DeclaredPredicates, 1368 GetRequests, 1072 SyntacticMatches, 186 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1960 ImplicationChecksByTransitivity, 8.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3814occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 98.2s AbstIntTime, 7 AbstIntIterations, 7 AbstIntStrong, 0.9950948466882258 AbsIntWeakeningRatio, 0.10606060606060606 AbsIntAvgWeakeningVarsNumRemoved, 111.5719696969697 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 6 MinimizatonAttempts, 296 StatesRemovedByMinimization, 6 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/Problem16_label36_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_12-31-25-603.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label36_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_12-31-25-603.csv Completed graceful shutdown