java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-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/Problem16_label33_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 22:42:33,217 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 22:42:33,219 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 22:42:33,235 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 22:42:33,235 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 22:42:33,237 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 22:42:33,238 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 22:42:33,241 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 22:42:33,246 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 22:42:33,247 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 22:42:33,248 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 22:42:33,248 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 22:42:33,250 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 22:42:33,252 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 22:42:33,253 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 22:42:33,262 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 22:42:33,263 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 22:42:33,266 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 22:42:33,271 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 22:42:33,272 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 22:42:33,275 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 22:42:33,277 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 22:42:33,281 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 22:42:33,292 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-23 22:42:33,319 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 22:42:33,320 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 22:42:33,320 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 22:42:33,322 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-23 22:42:33,322 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-23 22:42:33,322 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-23 22:42:33,322 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-23 22:42:33,322 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-23 22:42:33,323 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-23 22:42:33,323 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-23 22:42:33,323 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-23 22:42:33,324 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-23 22:42:33,324 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 22:42:33,325 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 22:42:33,325 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 22:42:33,325 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 22:42:33,325 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 22:42:33,325 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 22:42:33,326 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 22:42:33,327 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 22:42:33,328 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 22:42:33,328 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 22:42:33,328 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 22:42:33,328 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 22:42:33,329 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 22:42:33,329 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 22:42:33,329 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 22:42:33,330 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 22:42:33,330 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-23 22:42:33,330 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 22:42:33,330 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 22:42:33,330 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 22:42:33,331 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 22:42:33,331 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-23 22:42:33,400 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 22:42:33,413 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 22:42:33,416 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 22:42:33,418 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 22:42:33,418 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 22:42:33,419 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label33_false-unreach-call.c [2018-10-23 22:42:33,482 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f7f43c302/cbe3f37874b645f2aa6284a770b3dcb9/FLAG3e744c040 [2018-10-23 22:42:34,159 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 22:42:34,164 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label33_false-unreach-call.c [2018-10-23 22:42:34,181 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f7f43c302/cbe3f37874b645f2aa6284a770b3dcb9/FLAG3e744c040 [2018-10-23 22:42:34,195 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f7f43c302/cbe3f37874b645f2aa6284a770b3dcb9 [2018-10-23 22:42:34,206 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 22:42:34,208 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 22:42:34,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 22:42:34,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 22:42:34,213 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 22:42:34,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:42:34" (1/1) ... [2018-10-23 22:42:34,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e7fca2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:42:34, skipping insertion in model container [2018-10-23 22:42:34,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:42:34" (1/1) ... [2018-10-23 22:42:34,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 22:42:34,325 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 22:42:35,145 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 22:42:35,151 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 22:42:35,419 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 22:42:35,439 INFO L193 MainTranslator]: Completed translation [2018-10-23 22:42:35,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:42:35 WrapperNode [2018-10-23 22:42:35,440 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 22:42:35,440 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 22:42:35,441 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 22:42:35,441 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 22:42:35,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:42:35" (1/1) ... [2018-10-23 22:42:35,491 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:42:35" (1/1) ... [2018-10-23 22:42:35,734 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 22:42:35,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 22:42:35,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 22:42:35,734 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 22:42:35,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:42:35" (1/1) ... [2018-10-23 22:42:35,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:42:35" (1/1) ... [2018-10-23 22:42:35,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:42:35" (1/1) ... [2018-10-23 22:42:35,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:42:35" (1/1) ... [2018-10-23 22:42:35,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:42:35" (1/1) ... [2018-10-23 22:42:35,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:42:35" (1/1) ... [2018-10-23 22:42:35,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:42:35" (1/1) ... [2018-10-23 22:42:35,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 22:42:35,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 22:42:35,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 22:42:35,911 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 22:42:35,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:42:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-23 22:42:35,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-23 22:42:35,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-23 22:42:35,990 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-23 22:42:35,990 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-23 22:42:35,990 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-23 22:42:35,990 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-23 22:42:35,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 22:42:35,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 22:42:35,991 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-23 22:42:35,991 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-23 22:42:42,425 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 22:42:42,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:42:42 BoogieIcfgContainer [2018-10-23 22:42:42,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 22:42:42,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 22:42:42,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 22:42:42,431 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 22:42:42,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 10:42:34" (1/3) ... [2018-10-23 22:42:42,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c6d0e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:42:42, skipping insertion in model container [2018-10-23 22:42:42,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:42:35" (2/3) ... [2018-10-23 22:42:42,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c6d0e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:42:42, skipping insertion in model container [2018-10-23 22:42:42,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:42:42" (3/3) ... [2018-10-23 22:42:42,434 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label33_false-unreach-call.c [2018-10-23 22:42:42,442 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 22:42:42,450 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 22:42:42,468 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 22:42:42,510 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 22:42:42,510 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 22:42:42,511 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 22:42:42,511 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 22:42:42,511 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 22:42:42,511 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 22:42:42,511 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 22:42:42,511 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 22:42:42,544 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-10-23 22:42:42,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-10-23 22:42:42,552 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:42:42,554 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 22:42:42,556 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:42:42,562 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:42:42,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1052664084, now seen corresponding path program 1 times [2018-10-23 22:42:42,564 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:42:42,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:42:42,612 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:42:42,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:42:42,613 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:42:42,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:42:43,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:42:43,056 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:42:43,057 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 22:42:43,057 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:42:43,063 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 22:42:43,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 22:42:43,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 22:42:43,084 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 4 states. [2018-10-23 22:42:49,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:42:49,752 INFO L93 Difference]: Finished difference Result 1513 states and 2838 transitions. [2018-10-23 22:42:49,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 22:42:49,755 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2018-10-23 22:42:49,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:42:49,788 INFO L225 Difference]: With dead ends: 1513 [2018-10-23 22:42:49,788 INFO L226 Difference]: Without dead ends: 1097 [2018-10-23 22:42:49,799 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 22:42:49,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2018-10-23 22:42:49,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 744. [2018-10-23 22:42:49,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-10-23 22:42:49,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1301 transitions. [2018-10-23 22:42:49,909 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1301 transitions. Word has length 34 [2018-10-23 22:42:49,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:42:49,910 INFO L481 AbstractCegarLoop]: Abstraction has 744 states and 1301 transitions. [2018-10-23 22:42:49,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 22:42:49,910 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1301 transitions. [2018-10-23 22:42:49,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-10-23 22:42:49,916 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:42:49,917 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 22:42:49,917 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:42:49,917 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:42:49,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1349179771, now seen corresponding path program 1 times [2018-10-23 22:42:49,918 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:42:49,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:42:49,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:42:49,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:42:49,919 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:42:49,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:42:50,267 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:42:50,268 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:42:50,268 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 22:42:50,268 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:42:50,270 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 22:42:50,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 22:42:50,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 22:42:50,271 INFO L87 Difference]: Start difference. First operand 744 states and 1301 transitions. Second operand 6 states. [2018-10-23 22:42:54,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:42:54,774 INFO L93 Difference]: Finished difference Result 2196 states and 3924 transitions. [2018-10-23 22:42:54,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 22:42:54,777 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 105 [2018-10-23 22:42:54,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:42:54,790 INFO L225 Difference]: With dead ends: 2196 [2018-10-23 22:42:54,790 INFO L226 Difference]: Without dead ends: 1458 [2018-10-23 22:42:54,794 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-23 22:42:54,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1458 states. [2018-10-23 22:42:54,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1458 to 1438. [2018-10-23 22:42:54,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1438 states. [2018-10-23 22:42:54,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 2463 transitions. [2018-10-23 22:42:54,866 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 2463 transitions. Word has length 105 [2018-10-23 22:42:54,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:42:54,866 INFO L481 AbstractCegarLoop]: Abstraction has 1438 states and 2463 transitions. [2018-10-23 22:42:54,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 22:42:54,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 2463 transitions. [2018-10-23 22:42:54,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-10-23 22:42:54,871 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:42:54,871 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 22:42:54,871 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:42:54,872 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:42:54,872 INFO L82 PathProgramCache]: Analyzing trace with hash -453464994, now seen corresponding path program 1 times [2018-10-23 22:42:54,872 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:42:54,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:42:54,873 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:42:54,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:42:54,873 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:42:54,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:42:55,034 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:42:55,035 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:42:55,035 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 22:42:55,035 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:42:55,036 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 22:42:55,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 22:42:55,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-23 22:42:55,037 INFO L87 Difference]: Start difference. First operand 1438 states and 2463 transitions. Second operand 5 states. [2018-10-23 22:42:59,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:42:59,621 INFO L93 Difference]: Finished difference Result 3597 states and 6200 transitions. [2018-10-23 22:42:59,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 22:42:59,622 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 106 [2018-10-23 22:42:59,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:42:59,635 INFO L225 Difference]: With dead ends: 3597 [2018-10-23 22:42:59,636 INFO L226 Difference]: Without dead ends: 2165 [2018-10-23 22:42:59,641 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-23 22:42:59,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2165 states. [2018-10-23 22:42:59,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2165 to 2145. [2018-10-23 22:42:59,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2145 states. [2018-10-23 22:42:59,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2145 states to 2145 states and 3126 transitions. [2018-10-23 22:42:59,711 INFO L78 Accepts]: Start accepts. Automaton has 2145 states and 3126 transitions. Word has length 106 [2018-10-23 22:42:59,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:42:59,711 INFO L481 AbstractCegarLoop]: Abstraction has 2145 states and 3126 transitions. [2018-10-23 22:42:59,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 22:42:59,712 INFO L276 IsEmpty]: Start isEmpty. Operand 2145 states and 3126 transitions. [2018-10-23 22:42:59,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2018-10-23 22:42:59,716 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:42:59,716 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 22:42:59,717 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:42:59,717 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:42:59,717 INFO L82 PathProgramCache]: Analyzing trace with hash -405838746, now seen corresponding path program 1 times [2018-10-23 22:42:59,717 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:42:59,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:42:59,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:42:59,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:42:59,719 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:42:59,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:43:00,122 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:43:00,123 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:43:00,123 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 22:43:00,123 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:43:00,124 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 22:43:00,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 22:43:00,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 22:43:00,124 INFO L87 Difference]: Start difference. First operand 2145 states and 3126 transitions. Second operand 6 states. [2018-10-23 22:43:04,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:43:04,564 INFO L93 Difference]: Finished difference Result 7058 states and 10436 transitions. [2018-10-23 22:43:04,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 22:43:04,564 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 198 [2018-10-23 22:43:04,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:43:04,601 INFO L225 Difference]: With dead ends: 7058 [2018-10-23 22:43:04,601 INFO L226 Difference]: Without dead ends: 4919 [2018-10-23 22:43:04,620 INFO L605 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 [2018-10-23 22:43:04,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4919 states. [2018-10-23 22:43:04,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4919 to 4879. [2018-10-23 22:43:04,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4879 states. [2018-10-23 22:43:04,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4879 states to 4879 states and 6857 transitions. [2018-10-23 22:43:04,759 INFO L78 Accepts]: Start accepts. Automaton has 4879 states and 6857 transitions. Word has length 198 [2018-10-23 22:43:04,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:43:04,760 INFO L481 AbstractCegarLoop]: Abstraction has 4879 states and 6857 transitions. [2018-10-23 22:43:04,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 22:43:04,760 INFO L276 IsEmpty]: Start isEmpty. Operand 4879 states and 6857 transitions. [2018-10-23 22:43:04,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2018-10-23 22:43:04,765 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:43:04,765 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 22:43:04,765 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:43:04,766 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:43:04,766 INFO L82 PathProgramCache]: Analyzing trace with hash -295956150, now seen corresponding path program 1 times [2018-10-23 22:43:04,766 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:43:04,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:43:04,767 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:43:04,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:43:04,767 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:43:04,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:43:05,119 WARN L179 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-23 22:43:05,661 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:43:05,662 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:43:05,662 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 22:43:05,662 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:43:05,663 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 22:43:05,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 22:43:05,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 22:43:05,664 INFO L87 Difference]: Start difference. First operand 4879 states and 6857 transitions. Second operand 6 states. [2018-10-23 22:43:10,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:43:10,316 INFO L93 Difference]: Finished difference Result 12216 states and 17406 transitions. [2018-10-23 22:43:10,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 22:43:10,316 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 260 [2018-10-23 22:43:10,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:43:10,355 INFO L225 Difference]: With dead ends: 12216 [2018-10-23 22:43:10,355 INFO L226 Difference]: Without dead ends: 7343 [2018-10-23 22:43:10,386 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-23 22:43:10,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7343 states. [2018-10-23 22:43:10,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7343 to 7306. [2018-10-23 22:43:10,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7306 states. [2018-10-23 22:43:10,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7306 states to 7306 states and 9825 transitions. [2018-10-23 22:43:10,561 INFO L78 Accepts]: Start accepts. Automaton has 7306 states and 9825 transitions. Word has length 260 [2018-10-23 22:43:10,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:43:10,561 INFO L481 AbstractCegarLoop]: Abstraction has 7306 states and 9825 transitions. [2018-10-23 22:43:10,562 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 22:43:10,562 INFO L276 IsEmpty]: Start isEmpty. Operand 7306 states and 9825 transitions. [2018-10-23 22:43:10,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2018-10-23 22:43:10,573 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:43:10,574 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 22:43:10,574 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:43:10,574 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:43:10,575 INFO L82 PathProgramCache]: Analyzing trace with hash -733672245, now seen corresponding path program 1 times [2018-10-23 22:43:10,575 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:43:10,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:43:10,576 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:43:10,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:43:10,576 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:43:10,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:43:11,055 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 283 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-10-23 22:43:11,055 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 22:43:11,056 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 22:43:11,057 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 390 with the following transitions: [2018-10-23 22:43:11,059 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [351], [353], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [676], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1008], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-23 22:43:11,134 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 22:43:11,134 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 22:43:15,156 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-23 22:43:15,157 INFO L272 AbstractInterpreter]: Visited 160 different actions 160 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-23 22:43:15,170 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:43:15,170 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-23 22:43:18,372 INFO L232 lantSequenceWeakener]: Weakened 378 states. On average, predicates are now at 77.53% of their original sizes. [2018-10-23 22:43:18,373 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-23 22:43:18,964 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-23 22:43:18,965 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 22:43:18,966 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-10-23 22:43:18,966 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:43:18,966 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-23 22:43:18,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-23 22:43:18,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-23 22:43:18,967 INFO L87 Difference]: Start difference. First operand 7306 states and 9825 transitions. Second operand 8 states. [2018-10-23 22:43:23,192 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-23 22:44:21,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:44:21,454 INFO L93 Difference]: Finished difference Result 14946 states and 20038 transitions. [2018-10-23 22:44:21,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-23 22:44:21,455 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 389 [2018-10-23 22:44:21,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:44:21,488 INFO L225 Difference]: With dead ends: 14946 [2018-10-23 22:44:21,488 INFO L226 Difference]: Without dead ends: 7646 [2018-10-23 22:44:21,514 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 390 GetRequests, 382 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-23 22:44:21,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7646 states. [2018-10-23 22:44:21,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7646 to 7644. [2018-10-23 22:44:21,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7644 states. [2018-10-23 22:44:21,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7644 states to 7644 states and 10172 transitions. [2018-10-23 22:44:21,682 INFO L78 Accepts]: Start accepts. Automaton has 7644 states and 10172 transitions. Word has length 389 [2018-10-23 22:44:21,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:44:21,683 INFO L481 AbstractCegarLoop]: Abstraction has 7644 states and 10172 transitions. [2018-10-23 22:44:21,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-23 22:44:21,683 INFO L276 IsEmpty]: Start isEmpty. Operand 7644 states and 10172 transitions. [2018-10-23 22:44:21,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2018-10-23 22:44:21,701 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:44:21,701 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 22:44:21,702 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:44:21,702 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:44:21,702 INFO L82 PathProgramCache]: Analyzing trace with hash -319173591, now seen corresponding path program 1 times [2018-10-23 22:44:21,702 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:44:21,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:44:21,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:44:21,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:44:21,704 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:44:21,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:44:22,043 WARN L179 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-23 22:44:22,487 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 185 proven. 266 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2018-10-23 22:44:22,487 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 22:44:22,487 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 22:44:22,487 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 482 with the following transitions: [2018-10-23 22:44:22,488 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [351], [353], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [676], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1008], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-23 22:44:22,497 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 22:44:22,497 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 22:44:23,752 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-23 22:44:43,143 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-23 22:44:43,143 INFO L272 AbstractInterpreter]: Visited 164 different actions 637 times. Merged at 5 different actions 14 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-23 22:44:43,154 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:44:43,154 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-23 22:44:48,559 INFO L232 lantSequenceWeakener]: Weakened 171 states. On average, predicates are now at 77.43% of their original sizes. [2018-10-23 22:44:48,560 INFO L411 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-23 22:46:28,254 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 22:46:28,259 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 22:46:28,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 10:46:28 BoogieIcfgContainer [2018-10-23 22:46:28,260 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 22:46:28,261 INFO L168 Benchmark]: Toolchain (without parser) took 234053.80 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -479.0 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-10-23 22:46:28,262 INFO L168 Benchmark]: CDTParser took 0.19 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. [2018-10-23 22:46:28,263 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1231.24 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: 76.1 MB). Peak memory consumption was 76.1 MB. Max. memory is 7.1 GB. [2018-10-23 22:46:28,264 INFO L168 Benchmark]: Boogie Procedure Inliner took 293.45 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 736.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -858.7 MB). Peak memory consumption was 28.5 MB. Max. memory is 7.1 GB. [2018-10-23 22:46:28,266 INFO L168 Benchmark]: Boogie Preprocessor took 176.47 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2018-10-23 22:46:28,267 INFO L168 Benchmark]: RCFGBuilder took 6515.72 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: 254.0 MB). Peak memory consumption was 254.0 MB. Max. memory is 7.1 GB. [2018-10-23 22:46:28,269 INFO L168 Benchmark]: TraceAbstraction took 225832.10 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.7 GB). Free memory was 1.9 GB in the beginning and 1.9 GB in the end (delta: 36.1 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-10-23 22:46:28,277 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 1231.24 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: 76.1 MB). Peak memory consumption was 76.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 293.45 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 736.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -858.7 MB). Peak memory consumption was 28.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 176.47 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6515.72 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: 254.0 MB). Peak memory consumption was 254.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 225832.10 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.7 GB). Free memory was 1.9 GB in the beginning and 1.9 GB in the end (delta: 36.1 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 88]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 88). Cancelled while BasicCegarLoop was analyzing trace of length 482 with TraceHistMax 5,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 13 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 225.7s OverallTime, 7 OverallIterations, 5 TraceHistogramMax, 87.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 949 SDtfs, 8172 SDslu, 904 SDs, 0 SdLazy, 11546 SolverSat, 3715 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 52.7s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 435 GetRequests, 394 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7644occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 24.7s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9966940492887195 AbsIntWeakeningRatio, 0.08064516129032258 AbsIntAvgWeakeningVarsNumRemoved, 418.27764976958525 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 6 MinimizatonAttempts, 472 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 1092 NumberOfCodeBlocks, 1092 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1086 ConstructedInterpolants, 0 QuantifiedInterpolants, 1325354 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 459/461 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown