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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label00_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 00:22:03,932 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 00:22:03,935 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 00:22:03,952 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 00:22:03,953 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 00:22:03,954 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 00:22:03,956 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 00:22:03,959 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 00:22:03,960 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 00:22:03,970 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 00:22:03,970 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 00:22:03,971 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 00:22:03,972 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 00:22:03,973 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 00:22:03,974 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 00:22:03,975 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 00:22:03,976 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 00:22:03,978 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 00:22:03,979 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 00:22:03,981 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 00:22:03,982 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 00:22:03,983 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 00:22:03,985 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-07 00:22:03,998 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 00:22:04,026 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 00:22:04,026 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 00:22:04,030 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 00:22:04,030 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 00:22:04,030 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 00:22:04,031 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 00:22:04,031 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 00:22:04,031 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 00:22:04,031 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 00:22:04,031 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 00:22:04,032 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 00:22:04,032 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 00:22:04,033 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 00:22:04,033 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 00:22:04,033 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 00:22:04,033 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 00:22:04,033 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 00:22:04,033 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 00:22:04,035 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 00:22:04,035 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 00:22:04,035 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 00:22:04,035 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 00:22:04,035 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 00:22:04,036 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 00:22:04,036 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 00:22:04,036 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 00:22:04,036 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 00:22:04,036 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 00:22:04,037 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 00:22:04,037 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 00:22:04,037 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 00:22:04,037 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 00:22:04,037 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 00:22:04,038 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 00:22:04,081 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 00:22:04,094 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 00:22:04,099 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 00:22:04,101 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 00:22:04,101 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 00:22:04,102 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label00_false-unreach-call.c [2018-11-07 00:22:04,178 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/478f961de/9e153abee3f04da2880c092e437ce657/FLAGc398d987c [2018-11-07 00:22:04,868 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 00:22:04,869 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label00_false-unreach-call.c [2018-11-07 00:22:04,893 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/478f961de/9e153abee3f04da2880c092e437ce657/FLAGc398d987c [2018-11-07 00:22:04,912 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/478f961de/9e153abee3f04da2880c092e437ce657 [2018-11-07 00:22:04,924 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 00:22:04,927 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 00:22:04,928 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 00:22:04,928 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 00:22:04,933 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 00:22:04,934 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:22:04" (1/1) ... [2018-11-07 00:22:04,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b516e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:22:04, skipping insertion in model container [2018-11-07 00:22:04,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:22:04" (1/1) ... [2018-11-07 00:22:04,949 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 00:22:05,052 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 00:22:05,978 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:22:05,986 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 00:22:06,271 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:22:06,292 INFO L193 MainTranslator]: Completed translation [2018-11-07 00:22:06,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:22:06 WrapperNode [2018-11-07 00:22:06,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 00:22:06,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 00:22:06,294 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 00:22:06,294 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 00:22:06,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:22:06" (1/1) ... [2018-11-07 00:22:06,500 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:22:06" (1/1) ... [2018-11-07 00:22:06,510 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 00:22:06,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 00:22:06,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 00:22:06,511 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 00:22:06,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:22:06" (1/1) ... [2018-11-07 00:22:06,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:22:06" (1/1) ... [2018-11-07 00:22:06,531 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:22:06" (1/1) ... [2018-11-07 00:22:06,532 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:22:06" (1/1) ... [2018-11-07 00:22:06,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:22:06" (1/1) ... [2018-11-07 00:22:06,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:22:06" (1/1) ... [2018-11-07 00:22:06,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:22:06" (1/1) ... [2018-11-07 00:22:06,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 00:22:06,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 00:22:06,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 00:22:06,675 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 00:22:06,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:22:06" (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 [2018-11-07 00:22:06,740 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 00:22:06,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 00:22:06,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 00:22:06,741 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 00:22:06,741 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 00:22:06,741 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 00:22:06,741 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 00:22:06,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 00:22:06,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 00:22:06,742 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 00:22:06,742 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 00:22:12,372 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 00:22:12,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:22:12 BoogieIcfgContainer [2018-11-07 00:22:12,373 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 00:22:12,375 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 00:22:12,375 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 00:22:12,378 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 00:22:12,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:22:04" (1/3) ... [2018-11-07 00:22:12,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@322b7057 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:22:12, skipping insertion in model container [2018-11-07 00:22:12,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:22:06" (2/3) ... [2018-11-07 00:22:12,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@322b7057 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:22:12, skipping insertion in model container [2018-11-07 00:22:12,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:22:12" (3/3) ... [2018-11-07 00:22:12,382 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label00_false-unreach-call.c [2018-11-07 00:22:12,392 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 00:22:12,402 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 00:22:12,419 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 00:22:12,462 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 00:22:12,462 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 00:22:12,462 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 00:22:12,462 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 00:22:12,463 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 00:22:12,463 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 00:22:12,463 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 00:22:12,463 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 00:22:12,502 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-11-07 00:22:12,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-07 00:22:12,508 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:22:12,509 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:22:12,511 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:22:12,518 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:22:12,518 INFO L82 PathProgramCache]: Analyzing trace with hash -2089929615, now seen corresponding path program 1 times [2018-11-07 00:22:12,521 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:22:12,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:22:12,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:22:12,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:22:12,577 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:22:12,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:22:12,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:22:12,773 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:22:12,773 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 00:22:12,774 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:22:12,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 00:22:12,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 00:22:12,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 00:22:12,801 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 3 states. [2018-11-07 00:22:16,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:22:16,496 INFO L93 Difference]: Finished difference Result 1188 states and 2146 transitions. [2018-11-07 00:22:16,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 00:22:16,500 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-11-07 00:22:16,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:22:16,527 INFO L225 Difference]: With dead ends: 1188 [2018-11-07 00:22:16,527 INFO L226 Difference]: Without dead ends: 748 [2018-11-07 00:22:16,536 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 00:22:16,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2018-11-07 00:22:16,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 746. [2018-11-07 00:22:16,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 746 states. [2018-11-07 00:22:16,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 1128 transitions. [2018-11-07 00:22:16,644 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 1128 transitions. Word has length 13 [2018-11-07 00:22:16,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:22:16,645 INFO L480 AbstractCegarLoop]: Abstraction has 746 states and 1128 transitions. [2018-11-07 00:22:16,645 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 00:22:16,645 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 1128 transitions. [2018-11-07 00:22:16,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-11-07 00:22:16,651 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:22:16,652 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:22:16,652 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:22:16,652 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:22:16,653 INFO L82 PathProgramCache]: Analyzing trace with hash 341889893, now seen corresponding path program 1 times [2018-11-07 00:22:16,653 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:22:16,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:22:16,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:22:16,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:22:16,655 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:22:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:22:17,008 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:22:17,008 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:22:17,009 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 00:22:17,009 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:22:17,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 00:22:17,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 00:22:17,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 00:22:17,012 INFO L87 Difference]: Start difference. First operand 746 states and 1128 transitions. Second operand 5 states. [2018-11-07 00:22:17,192 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-11-07 00:22:25,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:22:25,530 INFO L93 Difference]: Finished difference Result 2394 states and 3589 transitions. [2018-11-07 00:22:25,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 00:22:25,541 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 83 [2018-11-07 00:22:25,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:22:25,555 INFO L225 Difference]: With dead ends: 2394 [2018-11-07 00:22:25,555 INFO L226 Difference]: Without dead ends: 1654 [2018-11-07 00:22:25,560 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-07 00:22:25,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2018-11-07 00:22:25,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 1646. [2018-11-07 00:22:25,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1646 states. [2018-11-07 00:22:25,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2402 transitions. [2018-11-07 00:22:25,661 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2402 transitions. Word has length 83 [2018-11-07 00:22:25,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:22:25,662 INFO L480 AbstractCegarLoop]: Abstraction has 1646 states and 2402 transitions. [2018-11-07 00:22:25,662 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 00:22:25,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2402 transitions. [2018-11-07 00:22:25,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-11-07 00:22:25,666 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:22:25,666 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:22:25,667 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:22:25,667 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:22:25,667 INFO L82 PathProgramCache]: Analyzing trace with hash 320095328, now seen corresponding path program 1 times [2018-11-07 00:22:25,667 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:22:25,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:22:25,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:22:25,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:22:25,670 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:22:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:22:26,033 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 00:22:26,415 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:22:26,415 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:22:26,415 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 00:22:26,416 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:22:26,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 00:22:26,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 00:22:26,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 00:22:26,417 INFO L87 Difference]: Start difference. First operand 1646 states and 2402 transitions. Second operand 6 states. [2018-11-07 00:22:32,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:22:32,037 INFO L93 Difference]: Finished difference Result 4250 states and 6736 transitions. [2018-11-07 00:22:32,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 00:22:32,042 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2018-11-07 00:22:32,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:22:32,066 INFO L225 Difference]: With dead ends: 4250 [2018-11-07 00:22:32,067 INFO L226 Difference]: Without dead ends: 2919 [2018-11-07 00:22:32,075 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 00:22:32,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2919 states. [2018-11-07 00:22:32,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2919 to 2871. [2018-11-07 00:22:32,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2871 states. [2018-11-07 00:22:32,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2871 states to 2871 states and 4002 transitions. [2018-11-07 00:22:32,163 INFO L78 Accepts]: Start accepts. Automaton has 2871 states and 4002 transitions. Word has length 88 [2018-11-07 00:22:32,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:22:32,164 INFO L480 AbstractCegarLoop]: Abstraction has 2871 states and 4002 transitions. [2018-11-07 00:22:32,164 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 00:22:32,164 INFO L276 IsEmpty]: Start isEmpty. Operand 2871 states and 4002 transitions. [2018-11-07 00:22:32,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-11-07 00:22:32,166 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:22:32,166 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:22:32,167 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:22:32,167 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:22:32,167 INFO L82 PathProgramCache]: Analyzing trace with hash 2101566060, now seen corresponding path program 1 times [2018-11-07 00:22:32,167 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:22:32,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:22:32,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:22:32,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:22:32,169 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:22:32,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:22:32,295 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:22:32,296 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:22:32,296 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 00:22:32,296 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:22:32,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 00:22:32,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 00:22:32,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 00:22:32,297 INFO L87 Difference]: Start difference. First operand 2871 states and 4002 transitions. Second operand 3 states. [2018-11-07 00:22:35,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:22:35,010 INFO L93 Difference]: Finished difference Result 6354 states and 9172 transitions. [2018-11-07 00:22:35,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 00:22:35,011 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2018-11-07 00:22:35,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:22:35,032 INFO L225 Difference]: With dead ends: 6354 [2018-11-07 00:22:35,032 INFO L226 Difference]: Without dead ends: 3798 [2018-11-07 00:22:35,043 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 00:22:35,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3798 states. [2018-11-07 00:22:35,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3798 to 3798. [2018-11-07 00:22:35,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3798 states. [2018-11-07 00:22:35,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3798 states to 3798 states and 5085 transitions. [2018-11-07 00:22:35,139 INFO L78 Accepts]: Start accepts. Automaton has 3798 states and 5085 transitions. Word has length 94 [2018-11-07 00:22:35,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:22:35,140 INFO L480 AbstractCegarLoop]: Abstraction has 3798 states and 5085 transitions. [2018-11-07 00:22:35,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 00:22:35,140 INFO L276 IsEmpty]: Start isEmpty. Operand 3798 states and 5085 transitions. [2018-11-07 00:22:35,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-11-07 00:22:35,142 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:22:35,142 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:22:35,142 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:22:35,142 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:22:35,143 INFO L82 PathProgramCache]: Analyzing trace with hash -770209994, now seen corresponding path program 1 times [2018-11-07 00:22:35,143 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:22:35,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:22:35,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:22:35,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:22:35,144 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:22:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:22:35,344 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:22:35,344 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:22:35,345 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 00:22:35,345 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:22:35,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 00:22:35,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 00:22:35,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 00:22:35,346 INFO L87 Difference]: Start difference. First operand 3798 states and 5085 transitions. Second operand 6 states. [2018-11-07 00:22:39,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:22:39,333 INFO L93 Difference]: Finished difference Result 7604 states and 10325 transitions. [2018-11-07 00:22:39,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 00:22:39,335 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 100 [2018-11-07 00:22:39,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:22:39,355 INFO L225 Difference]: With dead ends: 7604 [2018-11-07 00:22:39,355 INFO L226 Difference]: Without dead ends: 4120 [2018-11-07 00:22:39,368 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 00:22:39,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4120 states. [2018-11-07 00:22:39,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4120 to 4007. [2018-11-07 00:22:39,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4007 states. [2018-11-07 00:22:39,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4007 states to 4007 states and 5161 transitions. [2018-11-07 00:22:39,460 INFO L78 Accepts]: Start accepts. Automaton has 4007 states and 5161 transitions. Word has length 100 [2018-11-07 00:22:39,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:22:39,461 INFO L480 AbstractCegarLoop]: Abstraction has 4007 states and 5161 transitions. [2018-11-07 00:22:39,461 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 00:22:39,461 INFO L276 IsEmpty]: Start isEmpty. Operand 4007 states and 5161 transitions. [2018-11-07 00:22:39,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-11-07 00:22:39,463 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:22:39,463 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:22:39,463 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:22:39,464 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:22:39,464 INFO L82 PathProgramCache]: Analyzing trace with hash -504215513, now seen corresponding path program 1 times [2018-11-07 00:22:39,464 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:22:39,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:22:39,465 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:22:39,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:22:39,465 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:22:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:22:39,685 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:22:39,685 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:22:39,685 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:22:39,686 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 110 with the following transitions: [2018-11-07 00:22:39,688 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [77], [79], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 00:22:39,760 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:22:39,761 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:22:41,827 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 00:22:49,007 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 00:22:49,008 INFO L272 AbstractInterpreter]: Visited 104 different actions 298 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 00:22:49,027 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:22:49,028 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 00:22:49,028 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:22:49,028 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 00:22:49,038 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:22:49,039 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 00:22:49,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:22:49,100 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 00:22:49,214 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:22:49,214 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 00:22:49,707 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-11-07 00:22:50,082 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:22:50,115 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-07 00:22:50,115 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 11 [2018-11-07 00:22:50,115 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:22:50,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 00:22:50,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 00:22:50,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2018-11-07 00:22:50,120 INFO L87 Difference]: Start difference. First operand 4007 states and 5161 transitions. Second operand 6 states. [2018-11-07 00:22:57,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:22:57,162 INFO L93 Difference]: Finished difference Result 12745 states and 17259 transitions. [2018-11-07 00:22:57,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 00:22:57,163 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 109 [2018-11-07 00:22:57,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:22:57,220 INFO L225 Difference]: With dead ends: 12745 [2018-11-07 00:22:57,220 INFO L226 Difference]: Without dead ends: 9052 [2018-11-07 00:22:57,238 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 215 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2018-11-07 00:22:57,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9052 states. [2018-11-07 00:22:57,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9052 to 8996. [2018-11-07 00:22:57,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8996 states. [2018-11-07 00:22:57,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 11752 transitions. [2018-11-07 00:22:57,518 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 11752 transitions. Word has length 109 [2018-11-07 00:22:57,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:22:57,518 INFO L480 AbstractCegarLoop]: Abstraction has 8996 states and 11752 transitions. [2018-11-07 00:22:57,518 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 00:22:57,519 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 11752 transitions. [2018-11-07 00:22:57,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-11-07 00:22:57,528 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:22:57,529 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:22:57,529 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:22:57,529 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:22:57,533 INFO L82 PathProgramCache]: Analyzing trace with hash 661156445, now seen corresponding path program 1 times [2018-11-07 00:22:57,533 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:22:57,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:22:57,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:22:57,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:22:57,534 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:22:57,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:22:57,731 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:22:57,732 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:22:57,732 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 00:22:57,732 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:22:57,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 00:22:57,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 00:22:57,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 00:22:57,733 INFO L87 Difference]: Start difference. First operand 8996 states and 11752 transitions. Second operand 3 states. [2018-11-07 00:23:00,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:23:00,385 INFO L93 Difference]: Finished difference Result 17682 states and 23224 transitions. [2018-11-07 00:23:00,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 00:23:00,391 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2018-11-07 00:23:00,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:23:00,448 INFO L225 Difference]: With dead ends: 17682 [2018-11-07 00:23:00,448 INFO L226 Difference]: Without dead ends: 9000 [2018-11-07 00:23:00,478 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 00:23:00,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9000 states. [2018-11-07 00:23:00,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9000 to 8996. [2018-11-07 00:23:00,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8996 states. [2018-11-07 00:23:00,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 11174 transitions. [2018-11-07 00:23:00,686 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 11174 transitions. Word has length 158 [2018-11-07 00:23:00,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:23:00,686 INFO L480 AbstractCegarLoop]: Abstraction has 8996 states and 11174 transitions. [2018-11-07 00:23:00,687 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 00:23:00,687 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 11174 transitions. [2018-11-07 00:23:00,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-11-07 00:23:00,691 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:23:00,692 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:23:00,692 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:23:00,692 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:23:00,692 INFO L82 PathProgramCache]: Analyzing trace with hash 913470733, now seen corresponding path program 1 times [2018-11-07 00:23:00,693 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:23:00,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:23:00,694 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:23:00,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:23:00,694 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:23:00,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:23:01,219 WARN L179 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 12 [2018-11-07 00:23:01,567 WARN L179 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-11-07 00:23:01,800 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 12 proven. 74 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 00:23:01,800 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:23:01,801 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:23:01,801 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 174 with the following transitions: [2018-11-07 00:23:01,801 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [77], [79], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [609], [610], [614], [617], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 00:23:01,816 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:23:01,816 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:23:02,797 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 00:23:02,797 INFO L272 AbstractInterpreter]: Visited 86 different actions 86 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 00:23:02,801 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:23:02,801 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 00:23:04,223 INFO L227 lantSequenceWeakener]: Weakened 165 states. On average, predicates are now at 77.25% of their original sizes. [2018-11-07 00:23:04,223 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 00:23:04,603 INFO L415 sIntCurrentIteration]: We unified 172 AI predicates to 172 [2018-11-07 00:23:04,603 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 00:23:04,604 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 00:23:04,604 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-11-07 00:23:04,604 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:23:04,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 00:23:04,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 00:23:04,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 00:23:04,606 INFO L87 Difference]: Start difference. First operand 8996 states and 11174 transitions. Second operand 7 states. [2018-11-07 00:23:07,630 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 00:24:21,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:24:21,099 INFO L93 Difference]: Finished difference Result 17680 states and 22010 transitions. [2018-11-07 00:24:21,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 00:24:21,099 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 173 [2018-11-07 00:24:21,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:24:21,124 INFO L225 Difference]: With dead ends: 17680 [2018-11-07 00:24:21,124 INFO L226 Difference]: Without dead ends: 8998 [2018-11-07 00:24:21,143 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 173 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-07 00:24:21,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8998 states. [2018-11-07 00:24:21,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8998 to 8996. [2018-11-07 00:24:21,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8996 states. [2018-11-07 00:24:21,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 11157 transitions. [2018-11-07 00:24:21,318 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 11157 transitions. Word has length 173 [2018-11-07 00:24:21,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:24:21,319 INFO L480 AbstractCegarLoop]: Abstraction has 8996 states and 11157 transitions. [2018-11-07 00:24:21,319 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 00:24:21,319 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 11157 transitions. [2018-11-07 00:24:21,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2018-11-07 00:24:21,321 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:24:21,321 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:24:21,322 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:24:21,322 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:24:21,322 INFO L82 PathProgramCache]: Analyzing trace with hash -926180506, now seen corresponding path program 1 times [2018-11-07 00:24:21,322 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:24:21,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:24:21,323 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:24:21,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:24:21,324 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:24:21,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:24:21,896 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 13 proven. 66 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-07 00:24:21,897 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:24:21,897 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:24:21,897 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 183 with the following transitions: [2018-11-07 00:24:21,898 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [77], [79], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [585], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 00:24:21,903 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:24:21,903 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:24:23,273 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 00:24:27,260 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 00:24:27,260 INFO L272 AbstractInterpreter]: Visited 105 different actions 301 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 00:24:27,267 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:24:27,268 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 00:24:27,268 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:24:27,269 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 00:24:27,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:24:27,279 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 00:24:27,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:24:27,358 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 00:24:27,564 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-11-07 00:24:27,564 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 00:24:27,895 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-11-07 00:24:27,920 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-07 00:24:27,921 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 9 [2018-11-07 00:24:27,921 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:24:27,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 00:24:27,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 00:24:27,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-07 00:24:27,923 INFO L87 Difference]: Start difference. First operand 8996 states and 11157 transitions. Second operand 5 states. [2018-11-07 00:24:31,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:24:31,541 INFO L93 Difference]: Finished difference Result 20864 states and 26605 transitions. [2018-11-07 00:24:31,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 00:24:31,548 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 182 [2018-11-07 00:24:31,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:24:31,584 INFO L225 Difference]: With dead ends: 20864 [2018-11-07 00:24:31,584 INFO L226 Difference]: Without dead ends: 12182 [2018-11-07 00:24:31,600 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 362 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-11-07 00:24:31,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12182 states. [2018-11-07 00:24:31,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12182 to 11234. [2018-11-07 00:24:31,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11234 states. [2018-11-07 00:24:31,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11234 states to 11234 states and 13289 transitions. [2018-11-07 00:24:31,816 INFO L78 Accepts]: Start accepts. Automaton has 11234 states and 13289 transitions. Word has length 182 [2018-11-07 00:24:31,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:24:31,817 INFO L480 AbstractCegarLoop]: Abstraction has 11234 states and 13289 transitions. [2018-11-07 00:24:31,817 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 00:24:31,817 INFO L276 IsEmpty]: Start isEmpty. Operand 11234 states and 13289 transitions. [2018-11-07 00:24:31,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2018-11-07 00:24:31,824 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:24:31,824 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 00:24:31,824 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:24:31,824 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:24:31,825 INFO L82 PathProgramCache]: Analyzing trace with hash -229060413, now seen corresponding path program 1 times [2018-11-07 00:24:31,825 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:24:31,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:24:31,826 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:24:31,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:24:31,826 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:24:31,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:24:32,857 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-11-07 00:24:33,324 WARN L179 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-11-07 00:24:33,640 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-11-07 00:24:34,033 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 102 proven. 150 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 00:24:34,033 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:24:34,035 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:24:34,035 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 270 with the following transitions: [2018-11-07 00:24:34,035 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [77], [79], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [609], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 00:24:34,042 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:24:34,048 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:24:36,627 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 00:24:41,355 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 00:24:41,356 INFO L272 AbstractInterpreter]: Visited 106 different actions 305 times. Merged at 5 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 00:24:41,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:24:41,362 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 00:24:41,362 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:24:41,362 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 00:24:41,374 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:24:41,374 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 00:24:41,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:24:41,466 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 00:24:41,765 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 224 proven. 26 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-07 00:24:41,766 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 00:24:41,987 WARN L179 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 20 [2018-11-07 00:24:42,306 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 28 proven. 224 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 00:24:42,327 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 00:24:42,327 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 19 [2018-11-07 00:24:42,327 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 00:24:42,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-07 00:24:42,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-07 00:24:42,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2018-11-07 00:24:42,329 INFO L87 Difference]: Start difference. First operand 11234 states and 13289 transitions. Second operand 14 states. [2018-11-07 00:24:54,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:24:54,891 INFO L93 Difference]: Finished difference Result 26512 states and 31544 transitions. [2018-11-07 00:24:54,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-11-07 00:24:54,891 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 269 [2018-11-07 00:24:54,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:24:54,935 INFO L225 Difference]: With dead ends: 26512 [2018-11-07 00:24:54,935 INFO L226 Difference]: Without dead ends: 14707 [2018-11-07 00:24:54,962 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 595 GetRequests, 554 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=429, Invalid=1293, Unknown=0, NotChecked=0, Total=1722 [2018-11-07 00:24:54,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14707 states. [2018-11-07 00:24:55,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14707 to 13699. [2018-11-07 00:24:55,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13699 states. [2018-11-07 00:24:55,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13699 states to 13699 states and 16213 transitions. [2018-11-07 00:24:55,225 INFO L78 Accepts]: Start accepts. Automaton has 13699 states and 16213 transitions. Word has length 269 [2018-11-07 00:24:55,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:24:55,226 INFO L480 AbstractCegarLoop]: Abstraction has 13699 states and 16213 transitions. [2018-11-07 00:24:55,226 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-07 00:24:55,226 INFO L276 IsEmpty]: Start isEmpty. Operand 13699 states and 16213 transitions. [2018-11-07 00:24:55,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2018-11-07 00:24:55,233 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:24:55,234 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:24:55,234 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:24:55,234 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:24:55,235 INFO L82 PathProgramCache]: Analyzing trace with hash 129296168, now seen corresponding path program 1 times [2018-11-07 00:24:55,235 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:24:55,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:24:55,235 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:24:55,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:24:55,236 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:24:55,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:24:55,979 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 102 proven. 150 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 00:24:55,979 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:24:55,979 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:24:55,979 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 355 with the following transitions: [2018-11-07 00:24:55,980 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [77], [79], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [609], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1115], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 00:24:55,985 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:24:55,985 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:25:01,901 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 00:25:17,145 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 00:25:17,146 INFO L272 AbstractInterpreter]: Visited 191 different actions 560 times. Merged at 5 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 00:25:17,153 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:25:17,153 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 00:25:17,153 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:25:17,153 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 00:25:17,163 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:25:17,163 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 00:25:17,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:25:17,280 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 00:25:17,675 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 224 proven. 26 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-07 00:25:17,675 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 00:25:18,217 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 28 proven. 224 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 00:25:18,238 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 00:25:18,239 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 19 [2018-11-07 00:25:18,239 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 00:25:18,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-07 00:25:18,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-07 00:25:18,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2018-11-07 00:25:18,240 INFO L87 Difference]: Start difference. First operand 13699 states and 16213 transitions. Second operand 14 states. [2018-11-07 00:25:29,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:25:29,964 INFO L93 Difference]: Finished difference Result 29872 states and 35323 transitions. [2018-11-07 00:25:29,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-11-07 00:25:29,965 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 354 [2018-11-07 00:25:29,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:25:30,007 INFO L225 Difference]: With dead ends: 29872 [2018-11-07 00:25:30,008 INFO L226 Difference]: Without dead ends: 15283 [2018-11-07 00:25:30,035 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 767 GetRequests, 723 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=443, Invalid=1363, Unknown=0, NotChecked=0, Total=1806 [2018-11-07 00:25:30,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15283 states. [2018-11-07 00:25:30,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15283 to 14523. [2018-11-07 00:25:30,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14523 states. [2018-11-07 00:25:30,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14523 states to 14523 states and 16994 transitions. [2018-11-07 00:25:30,291 INFO L78 Accepts]: Start accepts. Automaton has 14523 states and 16994 transitions. Word has length 354 [2018-11-07 00:25:30,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:25:30,292 INFO L480 AbstractCegarLoop]: Abstraction has 14523 states and 16994 transitions. [2018-11-07 00:25:30,292 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-07 00:25:30,292 INFO L276 IsEmpty]: Start isEmpty. Operand 14523 states and 16994 transitions. [2018-11-07 00:25:30,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2018-11-07 00:25:30,301 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:25:30,302 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:25:30,302 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:25:30,302 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:25:30,302 INFO L82 PathProgramCache]: Analyzing trace with hash -390642729, now seen corresponding path program 1 times [2018-11-07 00:25:30,302 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:25:30,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:25:30,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:25:30,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:25:30,304 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:25:30,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:25:30,996 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 96 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:25:30,996 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:25:30,996 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:25:30,997 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 387 with the following transitions: [2018-11-07 00:25:30,998 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [77], [79], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [644], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 00:25:31,006 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:25:31,006 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:25:36,178 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-07 00:25:43,338 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-11-07 00:25:43,338 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-11-07 00:25:43,339 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-07 00:25:43,339 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:25:43,339 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 00:25:43,347 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:25:43,347 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 00:25:43,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:25:43,460 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 00:25:43,471 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-11-07 00:25:43,672 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 00:25:43,672 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 00:25:43,678 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 00:25:43,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:25:43 BoogieIcfgContainer [2018-11-07 00:25:43,678 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 00:25:43,679 INFO L168 Benchmark]: Toolchain (without parser) took 218754.54 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 3.4 GB in the end (delta: -2.0 GB). Peak memory consumption was 637.1 MB. Max. memory is 7.1 GB. [2018-11-07 00:25:43,680 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-11-07 00:25:43,681 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1364.93 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.9 MB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. [2018-11-07 00:25:43,682 INFO L168 Benchmark]: Boogie Procedure Inliner took 216.90 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -895.9 MB). Peak memory consumption was 31.3 MB. Max. memory is 7.1 GB. [2018-11-07 00:25:43,682 INFO L168 Benchmark]: Boogie Preprocessor took 163.96 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2018-11-07 00:25:43,683 INFO L168 Benchmark]: RCFGBuilder took 5698.50 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 284.6 MB). Peak memory consumption was 284.6 MB. Max. memory is 7.1 GB. [2018-11-07 00:25:43,684 INFO L168 Benchmark]: TraceAbstraction took 211303.98 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 3.4 GB in the end (delta: -1.5 GB). Peak memory consumption was 386.9 MB. Max. memory is 7.1 GB. [2018-11-07 00:25:43,689 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 1364.93 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.9 MB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 216.90 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -895.9 MB). Peak memory consumption was 31.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 163.96 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5698.50 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 284.6 MB). Peak memory consumption was 284.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 211303.98 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 3.4 GB in the end (delta: -1.5 GB). Peak memory consumption was 386.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 25]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 25). Cancelled while BasicCegarLoop was analyzing trace of length 387 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 6 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 211.2s OverallTime, 12 OverallIterations, 4 TraceHistogramMax, 139.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3414 SDtfs, 19735 SDslu, 2868 SDs, 0 SdLazy, 32324 SolverSat, 5791 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 104.8s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 2174 GetRequests, 2038 SyntacticMatches, 10 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 924 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14523occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 56.5s AbstIntTime, 6 AbstIntIterations, 1 AbstIntStrong, 0.9941333838894507 AbsIntWeakeningRatio, 0.1511627906976744 AbsIntAvgWeakeningVarsNumRemoved, 873.6918604651163 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 11 MinimizatonAttempts, 2949 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 8.9s InterpolantComputationTime, 2537 NumberOfCodeBlocks, 2537 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 3432 ConstructedInterpolants, 0 QuantifiedInterpolants, 5114411 SizeOfPredicates, 16 NumberOfNonLiveVariables, 1680 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 19 InterpolantComputations, 8 PerfectInterpolantSequences, 990/1936 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown