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_label10_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 03:18:55,344 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 03:18:55,346 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 03:18:55,358 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 03:18:55,359 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 03:18:55,360 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 03:18:55,361 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 03:18:55,363 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 03:18:55,365 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 03:18:55,366 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 03:18:55,367 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 03:18:55,367 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 03:18:55,368 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 03:18:55,369 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 03:18:55,370 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 03:18:55,371 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 03:18:55,372 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 03:18:55,374 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 03:18:55,376 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 03:18:55,377 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 03:18:55,378 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 03:18:55,380 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 03:18:55,382 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-27 03:18:55,392 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 [2018-10-27 03:18:55,414 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 03:18:55,414 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 03:18:55,415 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 03:18:55,416 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 03:18:55,416 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 03:18:55,416 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 03:18:55,416 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 03:18:55,416 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 03:18:55,417 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 03:18:55,417 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 03:18:55,417 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 03:18:55,417 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 03:18:55,418 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 03:18:55,418 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 03:18:55,418 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 03:18:55,418 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 03:18:55,419 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 03:18:55,419 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 03:18:55,419 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 03:18:55,419 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 03:18:55,419 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 03:18:55,420 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 03:18:55,420 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 03:18:55,420 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 03:18:55,420 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 03:18:55,420 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 03:18:55,421 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 03:18:55,421 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 03:18:55,421 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 03:18:55,421 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 03:18:55,421 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 03:18:55,422 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 03:18:55,422 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 03:18:55,422 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 03:18:55,479 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 03:18:55,491 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 03:18:55,494 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 03:18:55,496 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 03:18:55,496 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 03:18:55,497 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label10_true-unreach-call.c [2018-10-27 03:18:55,558 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4d6c581d6/fd29abd089bc4a11adcfb9f1b78186aa/FLAG8d61228ce [2018-10-27 03:18:56,232 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 03:18:56,233 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label10_true-unreach-call.c [2018-10-27 03:18:56,256 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4d6c581d6/fd29abd089bc4a11adcfb9f1b78186aa/FLAG8d61228ce [2018-10-27 03:18:56,276 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4d6c581d6/fd29abd089bc4a11adcfb9f1b78186aa [2018-10-27 03:18:56,288 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 03:18:56,289 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 03:18:56,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 03:18:56,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 03:18:56,294 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 03:18:56,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:18:56" (1/1) ... [2018-10-27 03:18:56,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2be2f573 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:18:56, skipping insertion in model container [2018-10-27 03:18:56,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:18:56" (1/1) ... [2018-10-27 03:18:56,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 03:18:56,403 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 03:18:57,227 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:18:57,232 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 03:18:57,503 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:18:57,526 INFO L193 MainTranslator]: Completed translation [2018-10-27 03:18:57,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:18:57 WrapperNode [2018-10-27 03:18:57,527 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 03:18:57,528 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 03:18:57,528 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 03:18:57,528 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 03:18:57,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:18:57" (1/1) ... [2018-10-27 03:18:57,590 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:18:57" (1/1) ... [2018-10-27 03:18:57,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 03:18:57,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 03:18:57,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 03:18:57,861 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 03:18:57,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:18:57" (1/1) ... [2018-10-27 03:18:57,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:18:57" (1/1) ... [2018-10-27 03:18:57,885 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:18:57" (1/1) ... [2018-10-27 03:18:57,886 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:18:57" (1/1) ... [2018-10-27 03:18:57,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:18:57" (1/1) ... [2018-10-27 03:18:57,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:18:57" (1/1) ... [2018-10-27 03:18:58,027 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:18:57" (1/1) ... [2018-10-27 03:18:58,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 03:18:58,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 03:18:58,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 03:18:58,054 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 03:18:58,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:18:57" (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 [2018-10-27 03:18:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 03:18:58,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 03:18:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 03:18:58,118 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 03:18:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 03:18:58,118 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 03:18:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 03:18:58,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 03:18:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 03:18:58,119 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 03:19:06,278 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 03:19:06,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:19:06 BoogieIcfgContainer [2018-10-27 03:19:06,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 03:19:06,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 03:19:06,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 03:19:06,284 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 03:19:06,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:18:56" (1/3) ... [2018-10-27 03:19:06,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19696270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:19:06, skipping insertion in model container [2018-10-27 03:19:06,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:18:57" (2/3) ... [2018-10-27 03:19:06,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19696270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:19:06, skipping insertion in model container [2018-10-27 03:19:06,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:19:06" (3/3) ... [2018-10-27 03:19:06,287 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label10_true-unreach-call.c [2018-10-27 03:19:06,296 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 03:19:06,305 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 03:19:06,320 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 03:19:06,362 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 03:19:06,362 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 03:19:06,362 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 03:19:06,362 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 03:19:06,362 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 03:19:06,363 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 03:19:06,363 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 03:19:06,363 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 03:19:06,394 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-10-27 03:19:06,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-10-27 03:19:06,403 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:19:06,404 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, 1, 1, 1, 1, 1] [2018-10-27 03:19:06,407 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:19:06,413 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:19:06,413 INFO L82 PathProgramCache]: Analyzing trace with hash -369179421, now seen corresponding path program 1 times [2018-10-27 03:19:06,416 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:19:06,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:19:06,474 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:19:06,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:19:06,475 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:19:06,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:19:06,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:19:06,937 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:19:06,937 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 03:19:06,937 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:19:06,944 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 03:19:06,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 03:19:06,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 03:19:06,966 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 4 states. [2018-10-27 03:19:16,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:19:16,033 INFO L93 Difference]: Finished difference Result 1513 states and 2838 transitions. [2018-10-27 03:19:16,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 03:19:16,035 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2018-10-27 03:19:16,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:19:16,062 INFO L225 Difference]: With dead ends: 1513 [2018-10-27 03:19:16,062 INFO L226 Difference]: Without dead ends: 1097 [2018-10-27 03:19:16,073 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 03:19:16,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2018-10-27 03:19:16,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 1097. [2018-10-27 03:19:16,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1097 states. [2018-10-27 03:19:16,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 1954 transitions. [2018-10-27 03:19:16,216 INFO L78 Accepts]: Start accepts. Automaton has 1097 states and 1954 transitions. Word has length 39 [2018-10-27 03:19:16,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:19:16,217 INFO L481 AbstractCegarLoop]: Abstraction has 1097 states and 1954 transitions. [2018-10-27 03:19:16,217 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 03:19:16,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 1954 transitions. [2018-10-27 03:19:16,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-10-27 03:19:16,233 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:19:16,233 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, 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] [2018-10-27 03:19:16,233 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:19:16,234 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:19:16,234 INFO L82 PathProgramCache]: Analyzing trace with hash -820358275, now seen corresponding path program 1 times [2018-10-27 03:19:16,234 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:19:16,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:19:16,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:19:16,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:19:16,236 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:19:16,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:19:16,725 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:19:16,726 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:19:16,726 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 03:19:16,726 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:19:16,728 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 03:19:16,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 03:19:16,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 03:19:16,729 INFO L87 Difference]: Start difference. First operand 1097 states and 1954 transitions. Second operand 6 states. [2018-10-27 03:19:24,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:19:24,816 INFO L93 Difference]: Finished difference Result 3259 states and 5952 transitions. [2018-10-27 03:19:24,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:19:24,827 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 110 [2018-10-27 03:19:24,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:19:24,851 INFO L225 Difference]: With dead ends: 3259 [2018-10-27 03:19:24,851 INFO L226 Difference]: Without dead ends: 2168 [2018-10-27 03:19:24,858 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 [2018-10-27 03:19:24,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2168 states. [2018-10-27 03:19:24,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2168 to 2142. [2018-10-27 03:19:24,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2142 states. [2018-10-27 03:19:24,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2142 states to 2142 states and 3739 transitions. [2018-10-27 03:19:24,975 INFO L78 Accepts]: Start accepts. Automaton has 2142 states and 3739 transitions. Word has length 110 [2018-10-27 03:19:24,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:19:24,976 INFO L481 AbstractCegarLoop]: Abstraction has 2142 states and 3739 transitions. [2018-10-27 03:19:24,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 03:19:24,976 INFO L276 IsEmpty]: Start isEmpty. Operand 2142 states and 3739 transitions. [2018-10-27 03:19:24,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-10-27 03:19:24,989 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:19:24,989 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, 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] [2018-10-27 03:19:24,990 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:19:24,990 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:19:24,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1928773899, now seen corresponding path program 1 times [2018-10-27 03:19:24,991 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:19:24,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:19:24,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:19:24,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:19:24,992 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:19:25,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:19:25,287 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:19:25,288 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:19:25,288 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 03:19:25,288 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:19:25,289 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 03:19:25,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 03:19:25,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 03:19:25,290 INFO L87 Difference]: Start difference. First operand 2142 states and 3739 transitions. Second operand 6 states. [2018-10-27 03:19:30,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:19:30,370 INFO L93 Difference]: Finished difference Result 7053 states and 12688 transitions. [2018-10-27 03:19:30,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:19:30,371 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 138 [2018-10-27 03:19:30,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:19:30,410 INFO L225 Difference]: With dead ends: 7053 [2018-10-27 03:19:30,410 INFO L226 Difference]: Without dead ends: 4917 [2018-10-27 03:19:30,434 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 [2018-10-27 03:19:30,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4917 states. [2018-10-27 03:19:30,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4917 to 4877. [2018-10-27 03:19:30,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4877 states. [2018-10-27 03:19:30,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4877 states to 4877 states and 7891 transitions. [2018-10-27 03:19:30,585 INFO L78 Accepts]: Start accepts. Automaton has 4877 states and 7891 transitions. Word has length 138 [2018-10-27 03:19:30,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:19:30,586 INFO L481 AbstractCegarLoop]: Abstraction has 4877 states and 7891 transitions. [2018-10-27 03:19:30,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 03:19:30,586 INFO L276 IsEmpty]: Start isEmpty. Operand 4877 states and 7891 transitions. [2018-10-27 03:19:30,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-10-27 03:19:30,590 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:19:30,590 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, 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] [2018-10-27 03:19:30,590 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:19:30,591 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:19:30,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1730052985, now seen corresponding path program 1 times [2018-10-27 03:19:30,591 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:19:30,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:19:30,592 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:19:30,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:19:30,592 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:19:30,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:19:30,837 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:19:30,838 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:19:30,838 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 03:19:30,838 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:19:30,839 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 03:19:30,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 03:19:30,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 03:19:30,839 INFO L87 Difference]: Start difference. First operand 4877 states and 7891 transitions. Second operand 6 states. [2018-10-27 03:19:34,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:19:34,449 INFO L93 Difference]: Finished difference Result 11909 states and 19972 transitions. [2018-10-27 03:19:34,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:19:34,456 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2018-10-27 03:19:34,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:19:34,507 INFO L225 Difference]: With dead ends: 11909 [2018-10-27 03:19:34,507 INFO L226 Difference]: Without dead ends: 7038 [2018-10-27 03:19:34,535 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 [2018-10-27 03:19:34,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7038 states. [2018-10-27 03:19:34,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7038 to 6977. [2018-10-27 03:19:34,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6977 states. [2018-10-27 03:19:34,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6977 states to 6977 states and 9942 transitions. [2018-10-27 03:19:34,778 INFO L78 Accepts]: Start accepts. Automaton has 6977 states and 9942 transitions. Word has length 156 [2018-10-27 03:19:34,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:19:34,779 INFO L481 AbstractCegarLoop]: Abstraction has 6977 states and 9942 transitions. [2018-10-27 03:19:34,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 03:19:34,779 INFO L276 IsEmpty]: Start isEmpty. Operand 6977 states and 9942 transitions. [2018-10-27 03:19:34,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2018-10-27 03:19:34,783 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:19:34,784 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, 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] [2018-10-27 03:19:34,784 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:19:34,784 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:19:34,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1129340368, now seen corresponding path program 1 times [2018-10-27 03:19:34,785 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:19:34,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:19:34,786 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:19:34,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:19:34,786 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:19:34,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:19:35,082 WARN L179 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 03:19:35,570 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:19:35,570 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:19:35,570 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 03:19:35,570 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:19:35,571 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 03:19:35,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 03:19:35,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 03:19:35,572 INFO L87 Difference]: Start difference. First operand 6977 states and 9942 transitions. Second operand 6 states. [2018-10-27 03:19:41,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:19:41,165 INFO L93 Difference]: Finished difference Result 17709 states and 25496 transitions. [2018-10-27 03:19:41,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:19:41,166 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 203 [2018-10-27 03:19:41,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:19:41,236 INFO L225 Difference]: With dead ends: 17709 [2018-10-27 03:19:41,236 INFO L226 Difference]: Without dead ends: 10738 [2018-10-27 03:19:41,279 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 03:19:41,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10738 states. [2018-10-27 03:19:41,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10738 to 10702. [2018-10-27 03:19:41,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10702 states. [2018-10-27 03:19:41,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10702 states to 10702 states and 14504 transitions. [2018-10-27 03:19:41,516 INFO L78 Accepts]: Start accepts. Automaton has 10702 states and 14504 transitions. Word has length 203 [2018-10-27 03:19:41,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:19:41,516 INFO L481 AbstractCegarLoop]: Abstraction has 10702 states and 14504 transitions. [2018-10-27 03:19:41,516 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 03:19:41,517 INFO L276 IsEmpty]: Start isEmpty. Operand 10702 states and 14504 transitions. [2018-10-27 03:19:41,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2018-10-27 03:19:41,520 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:19:41,521 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:19:41,521 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:19:41,521 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:19:41,521 INFO L82 PathProgramCache]: Analyzing trace with hash 2083831764, now seen corresponding path program 1 times [2018-10-27 03:19:41,522 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:19:41,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:19:41,523 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:19:41,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:19:41,523 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:19:41,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:19:41,791 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-10-27 03:19:41,792 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:19:41,792 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 03:19:41,792 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:19:41,793 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 03:19:41,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 03:19:41,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 03:19:41,794 INFO L87 Difference]: Start difference. First operand 10702 states and 14504 transitions. Second operand 4 states. [2018-10-27 03:19:46,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:19:46,340 INFO L93 Difference]: Finished difference Result 27183 states and 37572 transitions. [2018-10-27 03:19:46,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 03:19:46,345 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 240 [2018-10-27 03:19:46,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:19:46,419 INFO L225 Difference]: With dead ends: 27183 [2018-10-27 03:19:46,420 INFO L226 Difference]: Without dead ends: 16487 [2018-10-27 03:19:46,473 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 03:19:46,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16487 states. [2018-10-27 03:19:46,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16487 to 16487. [2018-10-27 03:19:46,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16487 states. [2018-10-27 03:19:46,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16487 states to 16487 states and 21483 transitions. [2018-10-27 03:19:46,857 INFO L78 Accepts]: Start accepts. Automaton has 16487 states and 21483 transitions. Word has length 240 [2018-10-27 03:19:46,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:19:46,858 INFO L481 AbstractCegarLoop]: Abstraction has 16487 states and 21483 transitions. [2018-10-27 03:19:46,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 03:19:46,858 INFO L276 IsEmpty]: Start isEmpty. Operand 16487 states and 21483 transitions. [2018-10-27 03:19:46,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2018-10-27 03:19:46,887 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:19:46,888 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:19:46,888 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:19:46,888 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:19:46,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1463225967, now seen corresponding path program 1 times [2018-10-27 03:19:46,889 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:19:46,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:19:46,890 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:19:46,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:19:46,890 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:19:46,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:19:47,573 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 215 proven. 115 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2018-10-27 03:19:47,573 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:19:47,573 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 03:19:47,574 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 425 with the following transitions: [2018-10-27 03:19:47,576 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [391], [393], [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], [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], [856], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [948], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-27 03:19:47,656 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 03:19:47,656 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 03:19:50,984 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 03:19:50,986 INFO L272 AbstractInterpreter]: Visited 145 different actions 145 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-27 03:19:50,998 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:19:50,998 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 03:19:54,155 INFO L227 lantSequenceWeakener]: Weakened 413 states. On average, predicates are now at 77.57% of their original sizes. [2018-10-27 03:19:54,155 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 03:19:54,774 INFO L415 sIntCurrentIteration]: We unified 423 AI predicates to 423 [2018-10-27 03:19:54,774 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 03:19:54,775 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 03:19:54,775 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-10-27 03:19:54,775 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:19:54,776 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-27 03:19:54,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-27 03:19:54,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-27 03:19:54,777 INFO L87 Difference]: Start difference. First operand 16487 states and 21483 transitions. Second operand 8 states. [2018-10-27 03:19:58,269 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 03:20:22,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:20:22,515 INFO L93 Difference]: Finished difference Result 33308 states and 43351 transitions. [2018-10-27 03:20:22,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 03:20:22,515 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 424 [2018-10-27 03:20:22,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:20:22,585 INFO L225 Difference]: With dead ends: 33308 [2018-10-27 03:20:22,585 INFO L226 Difference]: Without dead ends: 16827 [2018-10-27 03:20:22,651 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 425 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-27 03:20:22,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16827 states. [2018-10-27 03:20:22,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16827 to 16825. [2018-10-27 03:20:22,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16825 states. [2018-10-27 03:20:22,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16825 states to 16825 states and 21830 transitions. [2018-10-27 03:20:22,990 INFO L78 Accepts]: Start accepts. Automaton has 16825 states and 21830 transitions. Word has length 424 [2018-10-27 03:20:22,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:20:22,990 INFO L481 AbstractCegarLoop]: Abstraction has 16825 states and 21830 transitions. [2018-10-27 03:20:22,990 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-27 03:20:22,991 INFO L276 IsEmpty]: Start isEmpty. Operand 16825 states and 21830 transitions. [2018-10-27 03:20:23,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2018-10-27 03:20:23,034 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:20:23,034 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, 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, 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, 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] [2018-10-27 03:20:23,035 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:20:23,035 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:20:23,035 INFO L82 PathProgramCache]: Analyzing trace with hash -264490446, now seen corresponding path program 1 times [2018-10-27 03:20:23,035 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:20:23,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:20:23,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:20:23,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:20:23,037 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:20:23,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:20:23,406 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-27 03:20:24,105 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 205 proven. 311 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2018-10-27 03:20:24,105 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:20:24,105 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 03:20:24,106 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 517 with the following transitions: [2018-10-27 03:20:24,106 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [391], [393], [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], [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], [856], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [948], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-27 03:20:24,114 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 03:20:24,114 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 03:20:25,191 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 03:20:39,474 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 03:20:39,474 INFO L272 AbstractInterpreter]: Visited 149 different actions 577 times. Merged at 5 different actions 14 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-27 03:20:39,480 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:20:39,480 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 03:20:45,078 INFO L227 lantSequenceWeakener]: Weakened 74 states. On average, predicates are now at 77.95% of their original sizes. [2018-10-27 03:20:45,078 INFO L413 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-27 03:22:53,589 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 03:22:53,594 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 03:22:53,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:22:53 BoogieIcfgContainer [2018-10-27 03:22:53,595 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 03:22:53,596 INFO L168 Benchmark]: Toolchain (without parser) took 237307.66 ms. Allocated memory was 1.5 GB in the beginning and 3.8 GB in the end (delta: 2.3 GB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -36.7 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-10-27 03:22:53,597 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 03:22:53,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1237.07 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-10-27 03:22:53,599 INFO L168 Benchmark]: Boogie Procedure Inliner took 333.02 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.3 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -850.5 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. [2018-10-27 03:22:53,600 INFO L168 Benchmark]: Boogie Preprocessor took 192.69 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. [2018-10-27 03:22:53,601 INFO L168 Benchmark]: RCFGBuilder took 8225.22 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: 246.3 MB). Peak memory consumption was 246.3 MB. Max. memory is 7.1 GB. [2018-10-27 03:22:53,602 INFO L168 Benchmark]: TraceAbstraction took 227315.23 ms. Allocated memory was 2.3 GB in the beginning and 3.8 GB in the end (delta: 1.5 GB). Free memory was 1.9 GB in the beginning and 1.5 GB in the end (delta: 455.7 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-10-27 03:22:53,610 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1237.07 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 333.02 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.3 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -850.5 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 192.69 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 8225.22 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: 246.3 MB). Peak memory consumption was 246.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 227315.23 ms. Allocated memory was 2.3 GB in the beginning and 3.8 GB in the end (delta: 1.5 GB). Free memory was 1.9 GB in the beginning and 1.5 GB in the end (delta: 455.7 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 103). Cancelled while BasicCegarLoop was analyzing trace of length 517 with TraceHistMax 5,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 14 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 227.2s OverallTime, 8 OverallIterations, 5 TraceHistogramMax, 64.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1210 SDtfs, 10010 SDslu, 708 SDs, 0 SdLazy, 12552 SolverSat, 4676 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 41.4s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 476 GetRequests, 432 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16825occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 18.7s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9969407620283673 AbsIntWeakeningRatio, 0.07462686567164178 AbsIntAvgWeakeningVarsNumRemoved, 422.05223880597015 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 165 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1310 NumberOfCodeBlocks, 1310 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1303 ConstructedInterpolants, 0 QuantifiedInterpolants, 1087245 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 606/721 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown