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/loops/veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 01:29:05,764 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 01:29:05,766 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 01:29:05,778 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 01:29:05,778 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 01:29:05,780 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 01:29:05,781 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 01:29:05,783 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 01:29:05,784 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 01:29:05,785 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 01:29:05,786 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 01:29:05,786 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 01:29:05,787 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 01:29:05,788 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 01:29:05,789 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 01:29:05,790 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 01:29:05,791 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 01:29:05,793 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 01:29:05,795 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 01:29:05,797 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 01:29:05,798 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 01:29:05,801 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 01:29:05,806 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 01:29:05,821 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 [2018-09-19 01:29:05,853 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 01:29:05,853 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 01:29:05,855 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 01:29:05,855 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 01:29:05,855 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 01:29:05,855 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 01:29:05,855 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 01:29:05,856 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 01:29:05,856 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 01:29:05,856 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 01:29:05,856 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 01:29:05,856 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 01:29:05,858 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 01:29:05,858 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 01:29:05,858 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 01:29:05,859 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 01:29:05,860 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 01:29:05,860 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 01:29:05,860 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 01:29:05,860 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 01:29:05,860 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 01:29:05,861 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 01:29:05,861 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 01:29:05,861 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 01:29:05,861 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 01:29:05,861 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 01:29:05,862 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 01:29:05,862 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 01:29:05,862 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 01:29:05,862 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 01:29:05,862 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 01:29:05,864 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 01:29:05,864 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 01:29:05,864 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 01:29:05,915 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 01:29:05,930 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 01:29:05,935 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 01:29:05,937 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 01:29:05,938 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 01:29:05,938 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i [2018-09-19 01:29:06,339 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1fbf7419/be8d6aaf82784dc8afcd7631e01c2ffa/FLAGcdbb27a50 [2018-09-19 01:29:06,492 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 01:29:06,493 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i [2018-09-19 01:29:06,501 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1fbf7419/be8d6aaf82784dc8afcd7631e01c2ffa/FLAGcdbb27a50 [2018-09-19 01:29:06,521 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1fbf7419/be8d6aaf82784dc8afcd7631e01c2ffa [2018-09-19 01:29:06,533 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 01:29:06,537 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 01:29:06,538 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 01:29:06,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 01:29:06,549 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 01:29:06,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:29:06" (1/1) ... [2018-09-19 01:29:06,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f3c200c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:06, skipping insertion in model container [2018-09-19 01:29:06,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:29:06" (1/1) ... [2018-09-19 01:29:06,566 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 01:29:06,800 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:29:06,827 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 01:29:06,848 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:29:06,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:06 WrapperNode [2018-09-19 01:29:06,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 01:29:06,888 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 01:29:06,888 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 01:29:06,888 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 01:29:06,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:06" (1/1) ... [2018-09-19 01:29:06,914 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:06" (1/1) ... [2018-09-19 01:29:06,947 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 01:29:06,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 01:29:06,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 01:29:06,948 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 01:29:06,961 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:06" (1/1) ... [2018-09-19 01:29:06,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:06" (1/1) ... [2018-09-19 01:29:06,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:06" (1/1) ... [2018-09-19 01:29:06,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:06" (1/1) ... [2018-09-19 01:29:06,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:06" (1/1) ... [2018-09-19 01:29:06,992 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:06" (1/1) ... [2018-09-19 01:29:06,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:06" (1/1) ... [2018-09-19 01:29:06,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 01:29:06,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 01:29:06,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 01:29:06,999 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 01:29:07,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 01:29:07,140 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 01:29:07,140 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 01:29:07,140 INFO L130 BoogieDeclarations]: Found specification of procedure parse_expression_list [2018-09-19 01:29:07,140 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_expression_list [2018-09-19 01:29:07,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 01:29:07,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 01:29:07,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 01:29:07,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 01:29:07,141 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 01:29:07,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 01:29:07,812 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 01:29:07,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:29:07 BoogieIcfgContainer [2018-09-19 01:29:07,813 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 01:29:07,814 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 01:29:07,814 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 01:29:07,817 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 01:29:07,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 01:29:06" (1/3) ... [2018-09-19 01:29:07,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b3cc145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:29:07, skipping insertion in model container [2018-09-19 01:29:07,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:06" (2/3) ... [2018-09-19 01:29:07,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b3cc145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:29:07, skipping insertion in model container [2018-09-19 01:29:07,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:29:07" (3/3) ... [2018-09-19 01:29:07,821 INFO L112 eAbstractionObserver]: Analyzing ICFG veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i [2018-09-19 01:29:07,831 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 01:29:07,840 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 01:29:07,893 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 01:29:07,894 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 01:29:07,894 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 01:29:07,894 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 01:29:07,894 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 01:29:07,895 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 01:29:07,895 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 01:29:07,895 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 01:29:07,895 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 01:29:07,916 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2018-09-19 01:29:07,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-09-19 01:29:07,924 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:07,925 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] [2018-09-19 01:29:07,927 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:07,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1773514428, now seen corresponding path program 1 times [2018-09-19 01:29:07,936 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:07,937 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 28 with the following transitions: [2018-09-19 01:29:07,940 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [30], [32], [35], [39], [65], [67], [70], [76], [82], [86], [108], [109], [113], [126], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-09-19 01:29:07,995 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:07,995 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:08,126 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:29:08,127 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 01:29:08,146 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:29:08,250 INFO L232 lantSequenceWeakener]: Weakened 6 states. On average, predicates are now at 96.67% of their original sizes. [2018-09-19 01:29:08,251 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:29:08,276 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:29:08,278 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:29:08,279 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-19 01:29:08,279 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:29:08,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-19 01:29:08,289 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-19 01:29:08,289 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 01:29:08,292 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 3 states. [2018-09-19 01:29:08,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:29:08,357 INFO L93 Difference]: Finished difference Result 97 states and 133 transitions. [2018-09-19 01:29:08,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-19 01:29:08,359 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2018-09-19 01:29:08,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:29:08,367 INFO L225 Difference]: With dead ends: 97 [2018-09-19 01:29:08,368 INFO L226 Difference]: Without dead ends: 45 [2018-09-19 01:29:08,371 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 01:29:08,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-09-19 01:29:08,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-09-19 01:29:08,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-09-19 01:29:08,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 55 transitions. [2018-09-19 01:29:08,416 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 55 transitions. Word has length 27 [2018-09-19 01:29:08,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:29:08,417 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 55 transitions. [2018-09-19 01:29:08,417 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-19 01:29:08,417 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2018-09-19 01:29:08,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-19 01:29:08,419 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:08,419 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] [2018-09-19 01:29:08,419 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:08,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1145549408, now seen corresponding path program 1 times [2018-09-19 01:29:08,420 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:08,420 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 35 with the following transitions: [2018-09-19 01:29:08,421 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [17], [20], [26], [32], [35], [39], [43], [45], [57], [61], [67], [70], [76], [82], [86], [108], [109], [113], [117], [120], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-09-19 01:29:08,424 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:08,425 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:08,444 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:29:08,444 INFO L272 AbstractInterpreter]: Visited 8 different actions 8 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 01:29:08,474 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:29:08,532 INFO L232 lantSequenceWeakener]: Weakened 7 states. On average, predicates are now at 91.43% of their original sizes. [2018-09-19 01:29:08,533 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:29:08,548 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:29:08,548 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:29:08,549 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-19 01:29:08,549 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:29:08,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-19 01:29:08,550 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-19 01:29:08,550 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 01:29:08,551 INFO L87 Difference]: Start difference. First operand 45 states and 55 transitions. Second operand 3 states. [2018-09-19 01:29:08,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:29:08,610 INFO L93 Difference]: Finished difference Result 84 states and 104 transitions. [2018-09-19 01:29:08,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-19 01:29:08,611 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2018-09-19 01:29:08,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:29:08,612 INFO L225 Difference]: With dead ends: 84 [2018-09-19 01:29:08,612 INFO L226 Difference]: Without dead ends: 48 [2018-09-19 01:29:08,614 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 01:29:08,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-09-19 01:29:08,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 47. [2018-09-19 01:29:08,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-09-19 01:29:08,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 57 transitions. [2018-09-19 01:29:08,624 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 57 transitions. Word has length 34 [2018-09-19 01:29:08,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:29:08,624 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 57 transitions. [2018-09-19 01:29:08,625 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-19 01:29:08,625 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 57 transitions. [2018-09-19 01:29:08,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-09-19 01:29:08,626 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:08,626 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-09-19 01:29:08,627 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:08,627 INFO L82 PathProgramCache]: Analyzing trace with hash 381128697, now seen corresponding path program 1 times [2018-09-19 01:29:08,627 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:08,627 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 38 with the following transitions: [2018-09-19 01:29:08,628 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [17], [20], [26], [32], [35], [39], [43], [45], [57], [61], [67], [70], [76], [82], [86], [108], [109], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-09-19 01:29:08,631 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:08,631 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:08,869 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:29:08,869 INFO L272 AbstractInterpreter]: Visited 20 different actions 47 times. Merged at 3 different actions 20 times. Widened at 1 different actions 3 times. Found 1 fixpoints after 1 different actions. Largest state had 52 variables. [2018-09-19 01:29:08,903 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:29:09,133 INFO L232 lantSequenceWeakener]: Weakened 20 states. On average, predicates are now at 78.76% of their original sizes. [2018-09-19 01:29:09,133 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:29:09,794 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:29:09,794 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:29:09,795 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 01:29:09,795 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:29:09,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 01:29:09,796 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 01:29:09,796 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-09-19 01:29:09,796 INFO L87 Difference]: Start difference. First operand 47 states and 57 transitions. Second operand 9 states. [2018-09-19 01:29:10,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:29:10,717 INFO L93 Difference]: Finished difference Result 107 states and 137 transitions. [2018-09-19 01:29:10,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-19 01:29:10,719 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2018-09-19 01:29:10,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:29:10,724 INFO L225 Difference]: With dead ends: 107 [2018-09-19 01:29:10,724 INFO L226 Difference]: Without dead ends: 75 [2018-09-19 01:29:10,726 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-09-19 01:29:10,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-09-19 01:29:10,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 53. [2018-09-19 01:29:10,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-09-19 01:29:10,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 65 transitions. [2018-09-19 01:29:10,760 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 65 transitions. Word has length 37 [2018-09-19 01:29:10,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:29:10,760 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 65 transitions. [2018-09-19 01:29:10,760 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 01:29:10,761 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 65 transitions. [2018-09-19 01:29:10,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-09-19 01:29:10,766 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:10,767 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-09-19 01:29:10,767 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:10,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1613016009, now seen corresponding path program 1 times [2018-09-19 01:29:10,768 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:10,768 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 38 with the following transitions: [2018-09-19 01:29:10,768 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [17], [22], [26], [32], [35], [39], [43], [45], [57], [61], [67], [70], [76], [82], [86], [108], [109], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-09-19 01:29:10,772 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:10,774 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:10,971 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:29:10,972 INFO L272 AbstractInterpreter]: Visited 29 different actions 56 times. Merged at 3 different actions 20 times. Widened at 1 different actions 3 times. Found 1 fixpoints after 1 different actions. Largest state had 52 variables. [2018-09-19 01:29:10,978 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:29:11,252 INFO L232 lantSequenceWeakener]: Weakened 29 states. On average, predicates are now at 76.25% of their original sizes. [2018-09-19 01:29:11,253 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:29:12,205 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:29:12,206 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:29:12,206 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 01:29:12,206 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:29:12,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 01:29:12,208 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 01:29:12,208 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2018-09-19 01:29:12,209 INFO L87 Difference]: Start difference. First operand 53 states and 65 transitions. Second operand 12 states. [2018-09-19 01:29:13,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:29:13,544 INFO L93 Difference]: Finished difference Result 126 states and 162 transitions. [2018-09-19 01:29:13,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-19 01:29:13,544 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 37 [2018-09-19 01:29:13,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:29:13,548 INFO L225 Difference]: With dead ends: 126 [2018-09-19 01:29:13,548 INFO L226 Difference]: Without dead ends: 85 [2018-09-19 01:29:13,549 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2018-09-19 01:29:13,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-09-19 01:29:13,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 62. [2018-09-19 01:29:13,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-09-19 01:29:13,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 77 transitions. [2018-09-19 01:29:13,563 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 77 transitions. Word has length 37 [2018-09-19 01:29:13,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:29:13,563 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 77 transitions. [2018-09-19 01:29:13,563 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 01:29:13,563 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 77 transitions. [2018-09-19 01:29:13,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-09-19 01:29:13,565 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:13,565 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-09-19 01:29:13,565 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:13,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1402087609, now seen corresponding path program 1 times [2018-09-19 01:29:13,566 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:13,566 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 38 with the following transitions: [2018-09-19 01:29:13,567 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [17], [22], [26], [32], [37], [39], [43], [45], [57], [61], [67], [70], [76], [82], [86], [108], [109], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-09-19 01:29:13,569 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:13,569 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:13,724 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:29:13,725 INFO L272 AbstractInterpreter]: Visited 29 different actions 56 times. Merged at 3 different actions 20 times. Widened at 1 different actions 3 times. Found 1 fixpoints after 1 different actions. Largest state had 51 variables. [2018-09-19 01:29:13,749 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:29:13,984 INFO L232 lantSequenceWeakener]: Weakened 29 states. On average, predicates are now at 75.9% of their original sizes. [2018-09-19 01:29:13,984 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:29:14,390 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:29:14,393 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:29:14,393 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 01:29:14,393 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:29:14,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 01:29:14,394 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 01:29:14,394 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2018-09-19 01:29:14,395 INFO L87 Difference]: Start difference. First operand 62 states and 77 transitions. Second operand 11 states. [2018-09-19 01:29:15,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:29:15,341 INFO L93 Difference]: Finished difference Result 119 states and 151 transitions. [2018-09-19 01:29:15,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-19 01:29:15,341 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 37 [2018-09-19 01:29:15,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:29:15,343 INFO L225 Difference]: With dead ends: 119 [2018-09-19 01:29:15,343 INFO L226 Difference]: Without dead ends: 76 [2018-09-19 01:29:15,345 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 41 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2018-09-19 01:29:15,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-09-19 01:29:15,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 59. [2018-09-19 01:29:15,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-09-19 01:29:15,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 73 transitions. [2018-09-19 01:29:15,356 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 73 transitions. Word has length 37 [2018-09-19 01:29:15,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:29:15,356 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 73 transitions. [2018-09-19 01:29:15,357 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 01:29:15,357 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 73 transitions. [2018-09-19 01:29:15,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-19 01:29:15,358 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:15,358 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-09-19 01:29:15,358 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:15,359 INFO L82 PathProgramCache]: Analyzing trace with hash -976115869, now seen corresponding path program 1 times [2018-09-19 01:29:15,359 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:15,359 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 42 with the following transitions: [2018-09-19 01:29:15,359 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [17], [20], [26], [28], [32], [35], [39], [43], [45], [57], [61], [67], [70], [76], [82], [86], [108], [109], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-09-19 01:29:15,362 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:15,362 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:16,349 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:29:16,349 INFO L272 AbstractInterpreter]: Visited 21 different actions 290 times. Merged at 7 different actions 214 times. Widened at 2 different actions 48 times. Found 2 fixpoints after 2 different actions. Largest state had 53 variables. [2018-09-19 01:29:16,389 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:29:16,581 INFO L232 lantSequenceWeakener]: Weakened 24 states. On average, predicates are now at 77.17% of their original sizes. [2018-09-19 01:29:16,581 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:29:17,285 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:29:17,285 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:29:17,285 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 01:29:17,286 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:29:17,286 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 01:29:17,286 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 01:29:17,286 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-09-19 01:29:17,287 INFO L87 Difference]: Start difference. First operand 59 states and 73 transitions. Second operand 10 states. [2018-09-19 01:29:17,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:29:17,823 INFO L93 Difference]: Finished difference Result 125 states and 159 transitions. [2018-09-19 01:29:17,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-19 01:29:17,823 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 41 [2018-09-19 01:29:17,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:29:17,824 INFO L225 Difference]: With dead ends: 125 [2018-09-19 01:29:17,824 INFO L226 Difference]: Without dead ends: 91 [2018-09-19 01:29:17,825 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2018-09-19 01:29:17,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-09-19 01:29:17,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 64. [2018-09-19 01:29:17,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-09-19 01:29:17,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 80 transitions. [2018-09-19 01:29:17,837 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 80 transitions. Word has length 41 [2018-09-19 01:29:17,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:29:17,838 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 80 transitions. [2018-09-19 01:29:17,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 01:29:17,838 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 80 transitions. [2018-09-19 01:29:17,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-19 01:29:17,839 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:17,840 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-09-19 01:29:17,840 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:17,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1324706721, now seen corresponding path program 1 times [2018-09-19 01:29:17,840 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:17,840 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 42 with the following transitions: [2018-09-19 01:29:17,841 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [17], [20], [22], [26], [28], [32], [35], [39], [43], [45], [57], [61], [67], [70], [76], [82], [86], [108], [109], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-09-19 01:29:17,843 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:17,843 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:20,066 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:29:20,066 INFO L272 AbstractInterpreter]: Visited 31 different actions 782 times. Merged at 17 different actions 647 times. Widened at 3 different actions 92 times. Found 51 fixpoints after 4 different actions. Largest state had 53 variables. [2018-09-19 01:29:20,075 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:29:20,239 INFO L232 lantSequenceWeakener]: Weakened 33 states. On average, predicates are now at 75.33% of their original sizes. [2018-09-19 01:29:20,239 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:29:20,737 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:29:20,737 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:29:20,737 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 01:29:20,737 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:29:20,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 01:29:20,738 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 01:29:20,738 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2018-09-19 01:29:20,739 INFO L87 Difference]: Start difference. First operand 64 states and 80 transitions. Second operand 13 states. [2018-09-19 01:29:21,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:29:21,377 INFO L93 Difference]: Finished difference Result 111 states and 141 transitions. [2018-09-19 01:29:21,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-19 01:29:21,378 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 41 [2018-09-19 01:29:21,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:29:21,379 INFO L225 Difference]: With dead ends: 111 [2018-09-19 01:29:21,379 INFO L226 Difference]: Without dead ends: 53 [2018-09-19 01:29:21,381 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2018-09-19 01:29:21,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-09-19 01:29:21,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2018-09-19 01:29:21,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-09-19 01:29:21,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 59 transitions. [2018-09-19 01:29:21,395 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 59 transitions. Word has length 41 [2018-09-19 01:29:21,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:29:21,395 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 59 transitions. [2018-09-19 01:29:21,396 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 01:29:21,396 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 59 transitions. [2018-09-19 01:29:21,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-19 01:29:21,397 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:21,397 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-09-19 01:29:21,400 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:21,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1521687200, now seen corresponding path program 1 times [2018-09-19 01:29:21,401 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:21,401 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 43 with the following transitions: [2018-09-19 01:29:21,402 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [17], [20], [26], [32], [35], [39], [43], [45], [57], [61], [67], [70], [76], [82], [86], [93], [95], [97], [102], [108], [109], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-09-19 01:29:21,406 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:21,406 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:23,454 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:29:23,455 INFO L272 AbstractInterpreter]: Visited 24 different actions 537 times. Merged at 12 different actions 457 times. Widened at 3 different actions 92 times. Found 3 fixpoints after 3 different actions. Largest state had 53 variables. [2018-09-19 01:29:23,474 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:29:23,575 INFO L232 lantSequenceWeakener]: Weakened 25 states. On average, predicates are now at 76.87% of their original sizes. [2018-09-19 01:29:23,575 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:29:23,775 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:29:23,776 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:29:23,776 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 01:29:23,776 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:29:23,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 01:29:23,777 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 01:29:23,777 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-09-19 01:29:23,777 INFO L87 Difference]: Start difference. First operand 49 states and 59 transitions. Second operand 10 states. [2018-09-19 01:29:24,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:29:24,180 INFO L93 Difference]: Finished difference Result 108 states and 138 transitions. [2018-09-19 01:29:24,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-19 01:29:24,181 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 42 [2018-09-19 01:29:24,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:29:24,182 INFO L225 Difference]: With dead ends: 108 [2018-09-19 01:29:24,182 INFO L226 Difference]: Without dead ends: 76 [2018-09-19 01:29:24,183 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 44 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2018-09-19 01:29:24,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-09-19 01:29:24,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 58. [2018-09-19 01:29:24,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-09-19 01:29:24,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 70 transitions. [2018-09-19 01:29:24,194 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 70 transitions. Word has length 42 [2018-09-19 01:29:24,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:29:24,194 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 70 transitions. [2018-09-19 01:29:24,195 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 01:29:24,195 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 70 transitions. [2018-09-19 01:29:24,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-19 01:29:24,196 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:24,196 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-09-19 01:29:24,196 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:24,196 INFO L82 PathProgramCache]: Analyzing trace with hash 779135390, now seen corresponding path program 1 times [2018-09-19 01:29:24,197 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:24,197 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 43 with the following transitions: [2018-09-19 01:29:24,197 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [17], [22], [26], [32], [35], [39], [43], [45], [57], [61], [67], [70], [76], [82], [86], [93], [95], [97], [102], [108], [109], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-09-19 01:29:24,199 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:24,199 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:28,075 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:29:28,075 INFO L272 AbstractInterpreter]: Visited 39 different actions 1256 times. Merged at 25 different actions 1071 times. Widened at 4 different actions 136 times. Found 3 fixpoints after 3 different actions. Largest state had 53 variables. [2018-09-19 01:29:28,083 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:29:28,224 INFO L232 lantSequenceWeakener]: Weakened 40 states. On average, predicates are now at 75.81% of their original sizes. [2018-09-19 01:29:28,225 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:29:28,654 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:29:28,654 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:29:28,655 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-09-19 01:29:28,655 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:29:28,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-09-19 01:29:28,655 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-09-19 01:29:28,656 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2018-09-19 01:29:28,656 INFO L87 Difference]: Start difference. First operand 58 states and 70 transitions. Second operand 17 states. [2018-09-19 01:29:29,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:29:29,815 INFO L93 Difference]: Finished difference Result 154 states and 203 transitions. [2018-09-19 01:29:29,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 01:29:29,816 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 42 [2018-09-19 01:29:29,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:29:29,818 INFO L225 Difference]: With dead ends: 154 [2018-09-19 01:29:29,818 INFO L226 Difference]: Without dead ends: 122 [2018-09-19 01:29:29,819 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=105, Invalid=545, Unknown=0, NotChecked=0, Total=650 [2018-09-19 01:29:29,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-09-19 01:29:29,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 88. [2018-09-19 01:29:29,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-09-19 01:29:29,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 111 transitions. [2018-09-19 01:29:29,834 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 111 transitions. Word has length 42 [2018-09-19 01:29:29,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:29:29,835 INFO L480 AbstractCegarLoop]: Abstraction has 88 states and 111 transitions. [2018-09-19 01:29:29,835 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-09-19 01:29:29,835 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 111 transitions. [2018-09-19 01:29:29,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-19 01:29:29,836 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:29,837 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-09-19 01:29:29,837 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:29,837 INFO L82 PathProgramCache]: Analyzing trace with hash -500728288, now seen corresponding path program 1 times [2018-09-19 01:29:29,837 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:29,838 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 43 with the following transitions: [2018-09-19 01:29:29,838 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [17], [22], [26], [32], [37], [39], [43], [45], [57], [61], [67], [70], [76], [82], [86], [93], [95], [97], [102], [108], [109], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-09-19 01:29:29,840 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:29,840 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:34,027 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:29:34,027 INFO L272 AbstractInterpreter]: Visited 39 different actions 1260 times. Merged at 25 different actions 1073 times. Widened at 4 different actions 136 times. Found 3 fixpoints after 3 different actions. Largest state had 52 variables. [2018-09-19 01:29:34,070 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:29:34,219 INFO L232 lantSequenceWeakener]: Weakened 40 states. On average, predicates are now at 75.56% of their original sizes. [2018-09-19 01:29:34,219 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:29:36,221 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:29:36,221 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:29:36,221 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-09-19 01:29:36,221 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:29:36,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-19 01:29:36,222 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-19 01:29:36,222 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2018-09-19 01:29:36,222 INFO L87 Difference]: Start difference. First operand 88 states and 111 transitions. Second operand 16 states. [2018-09-19 01:29:39,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:29:39,840 INFO L93 Difference]: Finished difference Result 160 states and 209 transitions. [2018-09-19 01:29:39,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 01:29:39,840 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 42 [2018-09-19 01:29:39,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:29:39,843 INFO L225 Difference]: With dead ends: 160 [2018-09-19 01:29:39,844 INFO L226 Difference]: Without dead ends: 128 [2018-09-19 01:29:39,845 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=106, Invalid=446, Unknown=0, NotChecked=0, Total=552 [2018-09-19 01:29:39,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-09-19 01:29:39,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 88. [2018-09-19 01:29:39,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-09-19 01:29:39,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 111 transitions. [2018-09-19 01:29:39,859 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 111 transitions. Word has length 42 [2018-09-19 01:29:39,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:29:39,860 INFO L480 AbstractCegarLoop]: Abstraction has 88 states and 111 transitions. [2018-09-19 01:29:39,860 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-09-19 01:29:39,860 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 111 transitions. [2018-09-19 01:29:39,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-19 01:29:39,861 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:39,861 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-09-19 01:29:39,861 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:39,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1252003510, now seen corresponding path program 1 times [2018-09-19 01:29:39,862 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:39,862 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 47 with the following transitions: [2018-09-19 01:29:39,862 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [17], [20], [26], [28], [32], [35], [39], [43], [45], [57], [61], [67], [70], [76], [82], [86], [93], [95], [97], [102], [108], [109], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-09-19 01:29:39,864 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:39,864 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:42,677 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:29:42,677 INFO L272 AbstractInterpreter]: Visited 25 different actions 903 times. Merged at 13 different actions 713 times. Widened at 4 different actions 159 times. Found 52 fixpoints after 5 different actions. Largest state had 54 variables. [2018-09-19 01:29:42,687 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:29:42,792 INFO L232 lantSequenceWeakener]: Weakened 29 states. On average, predicates are now at 75.81% of their original sizes. [2018-09-19 01:29:42,793 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:29:42,924 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:29:42,925 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:29:42,925 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 01:29:42,925 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:29:42,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 01:29:42,926 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 01:29:42,926 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-09-19 01:29:42,926 INFO L87 Difference]: Start difference. First operand 88 states and 111 transitions. Second operand 11 states. [2018-09-19 01:29:43,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:29:43,303 INFO L93 Difference]: Finished difference Result 164 states and 212 transitions. [2018-09-19 01:29:43,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-19 01:29:43,303 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 46 [2018-09-19 01:29:43,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:29:43,305 INFO L225 Difference]: With dead ends: 164 [2018-09-19 01:29:43,305 INFO L226 Difference]: Without dead ends: 109 [2018-09-19 01:29:43,307 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2018-09-19 01:29:43,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-09-19 01:29:43,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 89. [2018-09-19 01:29:43,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-09-19 01:29:43,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 112 transitions. [2018-09-19 01:29:43,321 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 112 transitions. Word has length 46 [2018-09-19 01:29:43,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:29:43,321 INFO L480 AbstractCegarLoop]: Abstraction has 89 states and 112 transitions. [2018-09-19 01:29:43,321 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 01:29:43,322 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 112 transitions. [2018-09-19 01:29:43,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-19 01:29:43,322 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:43,323 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-09-19 01:29:43,323 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:43,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1048819080, now seen corresponding path program 1 times [2018-09-19 01:29:43,323 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:43,324 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 47 with the following transitions: [2018-09-19 01:29:43,324 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [17], [20], [22], [26], [28], [32], [35], [39], [43], [45], [57], [61], [67], [70], [76], [82], [86], [93], [95], [97], [102], [108], [109], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-09-19 01:29:43,326 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:43,326 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:50,381 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:29:50,382 INFO L272 AbstractInterpreter]: Visited 41 different actions 2369 times. Merged at 27 different actions 1963 times. Widened at 5 different actions 260 times. Found 220 fixpoints after 8 different actions. Largest state had 54 variables. [2018-09-19 01:29:50,393 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:29:50,549 INFO L232 lantSequenceWeakener]: Weakened 44 states. On average, predicates are now at 75.16% of their original sizes. [2018-09-19 01:29:50,549 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:29:50,852 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:29:50,853 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:29:50,853 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-19 01:29:50,853 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:29:50,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-19 01:29:50,854 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-19 01:29:50,854 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2018-09-19 01:29:50,854 INFO L87 Difference]: Start difference. First operand 89 states and 112 transitions. Second operand 18 states. [2018-09-19 01:29:51,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:29:51,900 INFO L93 Difference]: Finished difference Result 194 states and 257 transitions. [2018-09-19 01:29:51,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 01:29:51,901 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 46 [2018-09-19 01:29:51,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:29:51,902 INFO L225 Difference]: With dead ends: 194 [2018-09-19 01:29:51,902 INFO L226 Difference]: Without dead ends: 0 [2018-09-19 01:29:51,904 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 54 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=116, Invalid=586, Unknown=0, NotChecked=0, Total=702 [2018-09-19 01:29:51,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-19 01:29:51,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-19 01:29:51,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-19 01:29:51,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-19 01:29:51,905 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2018-09-19 01:29:51,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:29:51,905 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-19 01:29:51,905 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-19 01:29:51,905 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-19 01:29:51,906 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-19 01:29:51,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-19 01:29:52,217 WARN L178 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 115 [2018-09-19 01:29:52,499 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-19 01:29:52,511 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-19 01:29:52,528 WARN L178 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 122 [2018-09-19 01:29:52,640 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 108 [2018-09-19 01:29:53,010 WARN L178 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 14 [2018-09-19 01:29:53,669 WARN L178 SmtUtils]: Spent 657.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 45 [2018-09-19 01:29:54,061 WARN L178 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 35 [2018-09-19 01:29:54,398 WARN L178 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 28 [2018-09-19 01:29:54,698 WARN L178 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 31 [2018-09-19 01:29:54,702 INFO L426 ceAbstractionStarter]: For program point L60-1(line 60) no Hoare annotation was computed. [2018-09-19 01:29:54,702 INFO L426 ceAbstractionStarter]: For program point L60-2(line 60) no Hoare annotation was computed. [2018-09-19 01:29:54,702 INFO L426 ceAbstractionStarter]: For program point L60-3(line 60) no Hoare annotation was computed. [2018-09-19 01:29:54,702 INFO L426 ceAbstractionStarter]: For program point L56(line 56) no Hoare annotation was computed. [2018-09-19 01:29:54,703 INFO L426 ceAbstractionStarter]: For program point L60-5(line 60) no Hoare annotation was computed. [2018-09-19 01:29:54,703 INFO L426 ceAbstractionStarter]: For program point L60-7(line 60) no Hoare annotation was computed. [2018-09-19 01:29:54,703 INFO L426 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-09-19 01:29:54,703 INFO L422 ceAbstractionStarter]: At program point L60-9(line 60) the Hoare annotation is: (let ((.cse0 (* 2 |parse_expression_list_#in~str.offset|))) (or (= |parse_expression_list_#in~str.base| 0) (< .cse0 0) (and (not (= parse_expression_list_~str.base 0)) (= parse_expression_list_~str.offset 0) (not (= |parse_expression_list_~#str2~0.base| 0)) (= |parse_expression_list_~#str2~0.offset| 0) (<= 0 (+ parse_expression_list_~i~0 |parse_expression_list_~#str2~0.offset|)) (<= 0 (+ parse_expression_list_~str.offset parse_expression_list_~start~0))) (< 0 .cse0))) [2018-09-19 01:29:54,703 INFO L426 ceAbstractionStarter]: For program point L60-10(line 60) no Hoare annotation was computed. [2018-09-19 01:29:54,703 INFO L426 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-09-19 01:29:54,704 INFO L426 ceAbstractionStarter]: For program point L61-2(line 61) no Hoare annotation was computed. [2018-09-19 01:29:54,704 INFO L426 ceAbstractionStarter]: For program point L61-4(lines 55 73) no Hoare annotation was computed. [2018-09-19 01:29:54,704 INFO L426 ceAbstractionStarter]: For program point L57-1(line 57) no Hoare annotation was computed. [2018-09-19 01:29:54,704 INFO L426 ceAbstractionStarter]: For program point L57-2(line 57) no Hoare annotation was computed. [2018-09-19 01:29:54,704 INFO L426 ceAbstractionStarter]: For program point L57-4(line 57) no Hoare annotation was computed. [2018-09-19 01:29:54,704 INFO L426 ceAbstractionStarter]: For program point L53-1(lines 53 74) no Hoare annotation was computed. [2018-09-19 01:29:54,704 INFO L422 ceAbstractionStarter]: At program point L57-6(line 57) the Hoare annotation is: (let ((.cse0 (not (= parse_expression_list_~str.base 0))) (.cse1 (= parse_expression_list_~str.offset 0)) (.cse2 (not (= |parse_expression_list_~#str2~0.base| 0))) (.cse3 (= |parse_expression_list_~#str2~0.offset| 0)) (.cse4 (<= 0 (+ parse_expression_list_~i~0 |parse_expression_list_~#str2~0.offset|))) (.cse5 (* 2 |parse_expression_list_#in~str.offset|))) (or (and .cse0 .cse1 .cse2 (<= 1 (+ |parse_expression_list_~#str2~0.offset| parse_expression_list_~start~0)) .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= 0 (+ parse_expression_list_~str.offset parse_expression_list_~start~0)) (<= |parse_expression_list_~#str2~0.offset| (+ parse_expression_list_~j~0 1))) (= |parse_expression_list_#in~str.base| 0) (< .cse5 0) (< 0 .cse5))) [2018-09-19 01:29:54,704 INFO L426 ceAbstractionStarter]: For program point L53-2(lines 53 74) no Hoare annotation was computed. [2018-09-19 01:29:54,705 INFO L426 ceAbstractionStarter]: For program point L57-7(line 57) no Hoare annotation was computed. [2018-09-19 01:29:54,705 INFO L422 ceAbstractionStarter]: At program point L53-4(lines 53 74) the Hoare annotation is: (let ((.cse7 (+ parse_expression_list_~j~0 1))) (let ((.cse5 (<= 0 (+ parse_expression_list_~str.offset parse_expression_list_~start~0))) (.cse6 (<= |parse_expression_list_~#str2~0.offset| .cse7)) (.cse0 (not (= parse_expression_list_~str.base 0))) (.cse1 (= parse_expression_list_~str.offset 0)) (.cse2 (not (= |parse_expression_list_~#str2~0.base| 0))) (.cse3 (= |parse_expression_list_~#str2~0.offset| 0)) (.cse4 (<= 0 (+ parse_expression_list_~i~0 |parse_expression_list_~#str2~0.offset|))) (.cse8 (* 2 |parse_expression_list_#in~str.offset|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse2 (<= 0 (+ (* 2 parse_expression_list_~i~0) 2)) (<= parse_expression_list_~str.offset .cse7) (<= 0 (* 2 |parse_expression_list_~#str2~0.offset|)) (= .cse7 0) .cse5 .cse6 (<= (+ parse_expression_list_~i~0 parse_expression_list_~start~0 1) 0)) (= |parse_expression_list_#in~str.base| 0) (< .cse8 0) (and .cse0 .cse1 .cse2 (<= 1 (+ |parse_expression_list_~#str2~0.offset| parse_expression_list_~start~0)) .cse3 .cse4) (< 0 .cse8)))) [2018-09-19 01:29:54,705 INFO L426 ceAbstractionStarter]: For program point L53-5(lines 53 74) no Hoare annotation was computed. [2018-09-19 01:29:54,705 INFO L426 ceAbstractionStarter]: For program point parse_expression_listFINAL(lines 48 76) no Hoare annotation was computed. [2018-09-19 01:29:54,705 INFO L426 ceAbstractionStarter]: For program point L62(lines 62 71) no Hoare annotation was computed. [2018-09-19 01:29:54,705 INFO L426 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-09-19 01:29:54,706 INFO L429 ceAbstractionStarter]: At program point parse_expression_listENTRY(lines 48 76) the Hoare annotation is: true [2018-09-19 01:29:54,706 INFO L426 ceAbstractionStarter]: For program point L58-2(line 58) no Hoare annotation was computed. [2018-09-19 01:29:54,706 INFO L422 ceAbstractionStarter]: At program point L67(line 67) the Hoare annotation is: (let ((.cse0 (* 2 |parse_expression_list_#in~str.offset|))) (or (and (<= parse_expression_list_~start~0 parse_expression_list_~j~0) (not (= parse_expression_list_~str.base 0)) (= parse_expression_list_~str.offset 0) (not (= |parse_expression_list_~#str2~0.base| 0)) (= |parse_expression_list_~#str2~0.offset| 0) (<= parse_expression_list_~j~0 parse_expression_list_~start~0) (<= 0 (+ parse_expression_list_~i~0 |parse_expression_list_~#str2~0.offset|)) (<= 0 (+ parse_expression_list_~str.offset parse_expression_list_~start~0))) (= |parse_expression_list_#in~str.base| 0) (< .cse0 0) (< 0 .cse0))) [2018-09-19 01:29:54,706 INFO L426 ceAbstractionStarter]: For program point L67-1(line 67) no Hoare annotation was computed. [2018-09-19 01:29:54,706 INFO L426 ceAbstractionStarter]: For program point L63(lines 63 65) no Hoare annotation was computed. [2018-09-19 01:29:54,706 INFO L426 ceAbstractionStarter]: For program point parse_expression_listEXIT(lines 48 76) no Hoare annotation was computed. [2018-09-19 01:29:54,706 INFO L426 ceAbstractionStarter]: For program point L55(lines 55 73) no Hoare annotation was computed. [2018-09-19 01:29:54,706 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-19 01:29:54,706 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-19 01:29:54,707 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-19 01:29:54,707 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-19 01:29:54,707 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-19 01:29:54,707 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-19 01:29:54,707 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-19 01:29:54,707 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 77 88) the Hoare annotation is: true [2018-09-19 01:29:54,707 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 77 88) no Hoare annotation was computed. [2018-09-19 01:29:54,707 INFO L422 ceAbstractionStarter]: At program point L86(line 86) the Hoare annotation is: (and (not (= |main_~#A~0.base| 0)) (<= (+ main_~i~1 |main_~#A~0.offset|) 8) (<= 0 (* 2 main_~i~1)) (= |main_~#A~0.offset| 0)) [2018-09-19 01:29:54,707 INFO L426 ceAbstractionStarter]: For program point L86-1(line 86) no Hoare annotation was computed. [2018-09-19 01:29:54,707 INFO L426 ceAbstractionStarter]: For program point L81-1(lines 81 83) no Hoare annotation was computed. [2018-09-19 01:29:54,708 INFO L426 ceAbstractionStarter]: For program point L81-3(lines 81 83) no Hoare annotation was computed. [2018-09-19 01:29:54,708 INFO L422 ceAbstractionStarter]: At program point L81-4(lines 81 83) the Hoare annotation is: (and (not (= |main_~#A~0.base| 0)) (<= (+ main_~i~1 |main_~#A~0.offset|) 8) (<= 0 (* 2 main_~i~1)) (= |main_~#A~0.offset| 0)) [2018-09-19 01:29:54,708 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 77 88) no Hoare annotation was computed. [2018-09-19 01:29:54,708 INFO L426 ceAbstractionStarter]: For program point L81-5(lines 81 83) no Hoare annotation was computed. [2018-09-19 01:29:54,708 INFO L429 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2018-09-19 01:29:54,708 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed. [2018-09-19 01:29:54,708 INFO L426 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2018-09-19 01:29:54,708 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2018-09-19 01:29:54,708 INFO L426 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2018-09-19 01:29:54,708 INFO L426 ceAbstractionStarter]: For program point L5-2(lines 4 9) no Hoare annotation was computed. [2018-09-19 01:29:54,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 01:29:54 BoogieIcfgContainer [2018-09-19 01:29:54,728 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 01:29:54,729 INFO L168 Benchmark]: Toolchain (without parser) took 48194.42 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -307.2 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-09-19 01:29:54,730 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 01:29:54,730 INFO L168 Benchmark]: CACSL2BoogieTranslator took 348.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-19 01:29:54,731 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.11 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 01:29:54,731 INFO L168 Benchmark]: Boogie Preprocessor took 50.29 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 01:29:54,732 INFO L168 Benchmark]: RCFGBuilder took 814.16 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 710.4 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -752.7 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. [2018-09-19 01:29:54,733 INFO L168 Benchmark]: TraceAbstraction took 46913.95 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 434.9 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-09-19 01:29:54,738 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 348.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 60.11 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 50.29 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 814.16 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 710.4 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -752.7 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 46913.95 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 434.9 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: ((((((((((!(str == 0) && str == 0) && !(str2 == 0)) && str2 == 0) && 0 <= i + str2) && 0 <= str + start) && str2 <= j + 1) || ((((((((!(str == 0) && !(str2 == 0)) && 0 <= 2 * i + 2) && str <= j + 1) && 0 <= 2 * str2) && j + 1 == 0) && 0 <= str + start) && str2 <= j + 1) && i + start + 1 <= 0)) || str == 0) || 2 * str < 0) || (((((!(str == 0) && str == 0) && !(str2 == 0)) && 1 <= str2 + start) && str2 == 0) && 0 <= i + str2)) || 0 < 2 * str - InvariantResult [Line: 81]: Loop Invariant Derived loop invariant: ((!(A == 0) && i + A <= 8) && 0 <= 2 * i) && A == 0 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: ((((((((!(str == 0) && str == 0) && !(str2 == 0)) && 1 <= str2 + start) && str2 == 0) && 0 <= i + str2) || ((((((!(str == 0) && str == 0) && !(str2 == 0)) && str2 == 0) && 0 <= i + str2) && 0 <= str + start) && str2 <= j + 1)) || str == 0) || 2 * str < 0) || 0 < 2 * str - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: ((str == 0 || 2 * str < 0) || (((((!(str == 0) && str == 0) && !(str2 == 0)) && str2 == 0) && 0 <= i + str2) && 0 <= str + start)) || 0 < 2 * str - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 53 locations, 1 error locations. SAFE Result, 46.8s OverallTime, 12 OverallIterations, 2 TraceHistogramMax, 11.1s AutomataDifference, 0.0s DeadEndRemovalTime, 2.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 568 SDtfs, 1395 SDslu, 3006 SDs, 0 SdLazy, 2657 SolverSat, 253 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.3s Time, PredicateUnifierStatistics: 24 DeclaredPredicates, 519 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 550 ImplicationChecksByTransitivity, 8.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 24.2s AbstIntTime, 12 AbstIntIterations, 12 AbstIntStrong, 0.9501189522907267 AbsIntWeakeningRatio, 2.3260869565217392 AbsIntAvgWeakeningVarsNumRemoved, 162.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 206 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 37 PreInvPairs, 64 NumberOfFragments, 319 HoareAnnotationTreeSize, 37 FomulaSimplifications, 269984 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 12 FomulaSimplificationsInter, 2741 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_01-29-54-758.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_01-29-54-758.csv Received shutdown request...