java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label20_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 19:11:17,078 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 19:11:17,084 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 19:11:17,101 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 19:11:17,102 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 19:11:17,103 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 19:11:17,104 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 19:11:17,106 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 19:11:17,107 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 19:11:17,108 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 19:11:17,109 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 19:11:17,109 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 19:11:17,110 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 19:11:17,111 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 19:11:17,113 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 19:11:17,113 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 19:11:17,114 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 19:11:17,116 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 19:11:17,118 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 19:11:17,119 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 19:11:17,121 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 19:11:17,122 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 19:11:17,124 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 19:11:17,125 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 19:11:17,125 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 19:11:17,126 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 19:11:17,127 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 19:11:17,128 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 19:11:17,129 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 19:11:17,130 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 19:11:17,130 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 19:11:17,131 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 19:11:17,131 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 19:11:17,131 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 19:11:17,132 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 19:11:17,133 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 19:11:17,133 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-12 19:11:17,163 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 19:11:17,163 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 19:11:17,164 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 19:11:17,165 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 19:11:17,165 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 19:11:17,166 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 19:11:17,166 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 19:11:17,166 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 19:11:17,166 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 19:11:17,167 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 19:11:17,167 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 19:11:17,167 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 19:11:17,167 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 19:11:17,168 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 19:11:17,168 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 19:11:17,169 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 19:11:17,169 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 19:11:17,169 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 19:11:17,169 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 19:11:17,169 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 19:11:17,170 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 19:11:17,171 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 19:11:17,171 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 19:11:17,172 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 19:11:17,172 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 19:11:17,172 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 19:11:17,172 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 19:11:17,172 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 19:11:17,172 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 19:11:17,173 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 19:11:17,173 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 19:11:17,173 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 19:11:17,173 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 19:11:17,174 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 19:11:17,174 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 19:11:17,223 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 19:11:17,237 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 19:11:17,241 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 19:11:17,243 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 19:11:17,243 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 19:11:17,244 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label20_true-unreach-call.c [2018-11-12 19:11:17,307 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a64a6f54a/3609a16372c046bda37440dc58628d4d/FLAG4f3585b18 [2018-11-12 19:11:17,934 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 19:11:17,935 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label20_true-unreach-call.c [2018-11-12 19:11:17,960 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a64a6f54a/3609a16372c046bda37440dc58628d4d/FLAG4f3585b18 [2018-11-12 19:11:17,979 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a64a6f54a/3609a16372c046bda37440dc58628d4d [2018-11-12 19:11:17,991 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 19:11:17,993 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 19:11:17,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 19:11:17,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 19:11:17,999 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 19:11:18,000 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:11:17" (1/1) ... [2018-11-12 19:11:18,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@425d5bf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:11:18, skipping insertion in model container [2018-11-12 19:11:18,003 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:11:17" (1/1) ... [2018-11-12 19:11:18,014 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 19:11:18,116 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 19:11:19,001 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:11:19,007 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 19:11:19,293 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:11:19,314 INFO L193 MainTranslator]: Completed translation [2018-11-12 19:11:19,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:11:19 WrapperNode [2018-11-12 19:11:19,315 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 19:11:19,316 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 19:11:19,316 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 19:11:19,316 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 19:11:19,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:11:19" (1/1) ... [2018-11-12 19:11:19,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:11:19" (1/1) ... [2018-11-12 19:11:19,535 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 19:11:19,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 19:11:19,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 19:11:19,536 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 19:11:19,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:11:19" (1/1) ... [2018-11-12 19:11:19,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:11:19" (1/1) ... [2018-11-12 19:11:19,556 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:11:19" (1/1) ... [2018-11-12 19:11:19,556 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:11:19" (1/1) ... [2018-11-12 19:11:19,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:11:19" (1/1) ... [2018-11-12 19:11:19,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:11:19" (1/1) ... [2018-11-12 19:11:19,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:11:19" (1/1) ... [2018-11-12 19:11:19,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 19:11:19,691 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 19:11:19,691 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 19:11:19,692 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 19:11:19,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:11:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 19:11:19,756 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 19:11:19,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 19:11:19,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 19:11:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 19:11:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 19:11:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 19:11:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 19:11:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 19:11:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 19:11:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 19:11:19,758 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 19:11:26,506 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 19:11:26,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:11:26 BoogieIcfgContainer [2018-11-12 19:11:26,508 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 19:11:26,509 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 19:11:26,510 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 19:11:26,516 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 19:11:26,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 07:11:17" (1/3) ... [2018-11-12 19:11:26,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bcfc29c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:11:26, skipping insertion in model container [2018-11-12 19:11:26,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:11:19" (2/3) ... [2018-11-12 19:11:26,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bcfc29c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:11:26, skipping insertion in model container [2018-11-12 19:11:26,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:11:26" (3/3) ... [2018-11-12 19:11:26,521 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label20_true-unreach-call.c [2018-11-12 19:11:26,532 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 19:11:26,546 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 19:11:26,566 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 19:11:26,628 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 19:11:26,628 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 19:11:26,628 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 19:11:26,628 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 19:11:26,629 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 19:11:26,629 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 19:11:26,629 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 19:11:26,629 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 19:11:26,681 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-11-12 19:11:26,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-12 19:11:26,696 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:11:26,697 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:11:26,701 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:11:26,710 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:11:26,710 INFO L82 PathProgramCache]: Analyzing trace with hash 410122177, now seen corresponding path program 1 times [2018-11-12 19:11:26,713 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:11:26,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:11:26,776 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:11:26,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:11:26,776 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:11:26,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:11:27,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:11:27,290 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:11:27,291 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 19:11:27,291 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:11:27,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 19:11:27,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 19:11:27,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 19:11:27,317 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-11-12 19:11:33,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:11:33,735 INFO L93 Difference]: Finished difference Result 1510 states and 2773 transitions. [2018-11-12 19:11:33,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 19:11:33,736 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 49 [2018-11-12 19:11:33,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:11:33,763 INFO L225 Difference]: With dead ends: 1510 [2018-11-12 19:11:33,763 INFO L226 Difference]: Without dead ends: 1066 [2018-11-12 19:11:33,774 INFO L604 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 [2018-11-12 19:11:33,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2018-11-12 19:11:33,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1064. [2018-11-12 19:11:33,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1064 states. [2018-11-12 19:11:33,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1590 transitions. [2018-11-12 19:11:33,904 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1590 transitions. Word has length 49 [2018-11-12 19:11:33,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:11:33,905 INFO L480 AbstractCegarLoop]: Abstraction has 1064 states and 1590 transitions. [2018-11-12 19:11:33,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 19:11:33,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1590 transitions. [2018-11-12 19:11:33,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-11-12 19:11:33,913 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:11:33,913 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, 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] [2018-11-12 19:11:33,913 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:11:33,913 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:11:33,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1315680885, now seen corresponding path program 1 times [2018-11-12 19:11:33,914 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:11:33,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:11:33,915 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:11:33,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:11:33,916 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:11:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:11:34,162 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:11:34,163 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:11:34,163 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 19:11:34,163 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:11:34,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 19:11:34,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 19:11:34,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-12 19:11:34,166 INFO L87 Difference]: Start difference. First operand 1064 states and 1590 transitions. Second operand 5 states. [2018-11-12 19:11:34,815 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-11-12 19:11:42,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:11:42,897 INFO L93 Difference]: Finished difference Result 3340 states and 4979 transitions. [2018-11-12 19:11:42,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 19:11:42,903 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 119 [2018-11-12 19:11:42,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:11:42,919 INFO L225 Difference]: With dead ends: 3340 [2018-11-12 19:11:42,920 INFO L226 Difference]: Without dead ends: 2282 [2018-11-12 19:11:42,927 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-12 19:11:42,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2282 states. [2018-11-12 19:11:43,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2282 to 2267. [2018-11-12 19:11:43,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2267 states. [2018-11-12 19:11:43,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2267 states to 2267 states and 3306 transitions. [2018-11-12 19:11:43,015 INFO L78 Accepts]: Start accepts. Automaton has 2267 states and 3306 transitions. Word has length 119 [2018-11-12 19:11:43,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:11:43,016 INFO L480 AbstractCegarLoop]: Abstraction has 2267 states and 3306 transitions. [2018-11-12 19:11:43,016 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 19:11:43,016 INFO L276 IsEmpty]: Start isEmpty. Operand 2267 states and 3306 transitions. [2018-11-12 19:11:43,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-11-12 19:11:43,020 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:11:43,020 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, 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] [2018-11-12 19:11:43,020 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:11:43,021 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:11:43,021 INFO L82 PathProgramCache]: Analyzing trace with hash -2016407952, now seen corresponding path program 1 times [2018-11-12 19:11:43,021 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:11:43,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:11:43,023 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:11:43,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:11:43,023 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:11:43,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:11:43,336 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:11:43,336 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:11:43,336 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 19:11:43,337 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:11:43,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 19:11:43,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 19:11:43,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 19:11:43,338 INFO L87 Difference]: Start difference. First operand 2267 states and 3306 transitions. Second operand 6 states. [2018-11-12 19:11:48,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:11:48,807 INFO L93 Difference]: Finished difference Result 6382 states and 9947 transitions. [2018-11-12 19:11:48,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 19:11:48,818 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 124 [2018-11-12 19:11:48,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:11:48,853 INFO L225 Difference]: With dead ends: 6382 [2018-11-12 19:11:48,853 INFO L226 Difference]: Without dead ends: 4430 [2018-11-12 19:11:48,869 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 19:11:48,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4430 states. [2018-11-12 19:11:48,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4430 to 4375. [2018-11-12 19:11:48,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4375 states. [2018-11-12 19:11:49,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4375 states to 4375 states and 5974 transitions. [2018-11-12 19:11:49,015 INFO L78 Accepts]: Start accepts. Automaton has 4375 states and 5974 transitions. Word has length 124 [2018-11-12 19:11:49,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:11:49,018 INFO L480 AbstractCegarLoop]: Abstraction has 4375 states and 5974 transitions. [2018-11-12 19:11:49,018 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 19:11:49,018 INFO L276 IsEmpty]: Start isEmpty. Operand 4375 states and 5974 transitions. [2018-11-12 19:11:49,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-11-12 19:11:49,025 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:11:49,026 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, 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] [2018-11-12 19:11:49,026 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:11:49,026 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:11:49,026 INFO L82 PathProgramCache]: Analyzing trace with hash 2021875324, now seen corresponding path program 1 times [2018-11-12 19:11:49,026 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:11:49,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:11:49,029 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:11:49,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:11:49,029 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:11:49,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:11:49,294 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:11:49,295 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:11:49,295 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 19:11:49,295 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:11:49,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 19:11:49,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 19:11:49,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 19:11:49,297 INFO L87 Difference]: Start difference. First operand 4375 states and 5974 transitions. Second operand 4 states. [2018-11-12 19:11:53,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:11:53,697 INFO L93 Difference]: Finished difference Result 11465 states and 16390 transitions. [2018-11-12 19:11:53,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 19:11:53,702 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 130 [2018-11-12 19:11:53,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:11:53,737 INFO L225 Difference]: With dead ends: 11465 [2018-11-12 19:11:53,737 INFO L226 Difference]: Without dead ends: 7405 [2018-11-12 19:11:53,761 INFO L604 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 [2018-11-12 19:11:53,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7405 states. [2018-11-12 19:11:53,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7405 to 7399. [2018-11-12 19:11:53,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7399 states. [2018-11-12 19:11:53,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7399 states to 7399 states and 9840 transitions. [2018-11-12 19:11:53,938 INFO L78 Accepts]: Start accepts. Automaton has 7399 states and 9840 transitions. Word has length 130 [2018-11-12 19:11:53,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:11:53,939 INFO L480 AbstractCegarLoop]: Abstraction has 7399 states and 9840 transitions. [2018-11-12 19:11:53,939 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 19:11:53,939 INFO L276 IsEmpty]: Start isEmpty. Operand 7399 states and 9840 transitions. [2018-11-12 19:11:53,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-11-12 19:11:53,943 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:11:53,944 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, 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] [2018-11-12 19:11:53,944 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:11:53,944 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:11:53,944 INFO L82 PathProgramCache]: Analyzing trace with hash 419544631, now seen corresponding path program 1 times [2018-11-12 19:11:53,945 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:11:53,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:11:53,946 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:11:53,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:11:53,946 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:11:53,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:11:54,417 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:11:54,418 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:11:54,418 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:11:54,419 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 146 with the following transitions: [2018-11-12 19:11:54,421 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [365], [367], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 19:11:54,470 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:11:54,471 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:11:55,038 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:11:56,500 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 19:11:56,502 INFO L272 AbstractInterpreter]: Visited 104 different actions 691 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Performed 11667 root evaluator evaluations with a maximum evaluation depth of 6. Performed 11667 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:11:56,549 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:11:56,551 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 19:11:56,551 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:11:56,551 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-12 19:11:56,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:11:56,569 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 19:11:56,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:11:56,675 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 19:11:56,889 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:11:56,890 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 19:11:57,267 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-11-12 19:11:57,897 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:11:57,933 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-12 19:11:57,934 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 11 [2018-11-12 19:11:57,934 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:11:57,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 19:11:57,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 19:11:57,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2018-11-12 19:11:57,935 INFO L87 Difference]: Start difference. First operand 7399 states and 9840 transitions. Second operand 6 states. [2018-11-12 19:12:04,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:12:04,958 INFO L93 Difference]: Finished difference Result 25922 states and 36237 transitions. [2018-11-12 19:12:04,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-12 19:12:04,958 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2018-11-12 19:12:04,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:12:05,085 INFO L225 Difference]: With dead ends: 25922 [2018-11-12 19:12:05,086 INFO L226 Difference]: Without dead ends: 18838 [2018-11-12 19:12:05,193 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 288 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2018-11-12 19:12:05,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18838 states. [2018-11-12 19:12:05,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18838 to 18786. [2018-11-12 19:12:05,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18786 states. [2018-11-12 19:12:05,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18786 states to 18786 states and 25161 transitions. [2018-11-12 19:12:05,681 INFO L78 Accepts]: Start accepts. Automaton has 18786 states and 25161 transitions. Word has length 145 [2018-11-12 19:12:05,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:12:05,682 INFO L480 AbstractCegarLoop]: Abstraction has 18786 states and 25161 transitions. [2018-11-12 19:12:05,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 19:12:05,682 INFO L276 IsEmpty]: Start isEmpty. Operand 18786 states and 25161 transitions. [2018-11-12 19:12:05,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2018-11-12 19:12:05,706 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:12:05,707 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:12:05,707 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:12:05,707 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:12:05,709 INFO L82 PathProgramCache]: Analyzing trace with hash 577768630, now seen corresponding path program 1 times [2018-11-12 19:12:05,709 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:12:05,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:12:05,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:12:05,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:12:05,710 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:12:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:12:06,342 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 85 proven. 66 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-12 19:12:06,342 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:12:06,342 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:12:06,343 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 219 with the following transitions: [2018-11-12 19:12:06,343 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [365], [367], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [585], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 19:12:06,348 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:12:06,348 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:12:06,442 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:12:07,541 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 19:12:07,541 INFO L272 AbstractInterpreter]: Visited 105 different actions 698 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Performed 12365 root evaluator evaluations with a maximum evaluation depth of 6. Performed 12365 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:12:07,577 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:12:07,581 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 19:12:07,581 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:12:07,581 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-12 19:12:07,602 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:12:07,602 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 19:12:07,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:12:07,880 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 19:12:08,022 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 85 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-11-12 19:12:08,023 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 19:12:08,396 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-11-12 19:12:08,416 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-12 19:12:08,416 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 9 [2018-11-12 19:12:08,416 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:12:08,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 19:12:08,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 19:12:08,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-12 19:12:08,418 INFO L87 Difference]: Start difference. First operand 18786 states and 25161 transitions. Second operand 5 states. [2018-11-12 19:12:11,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:12:11,788 INFO L93 Difference]: Finished difference Result 43199 states and 60674 transitions. [2018-11-12 19:12:11,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-12 19:12:11,790 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 218 [2018-11-12 19:12:11,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:12:11,932 INFO L225 Difference]: With dead ends: 43199 [2018-11-12 19:12:11,932 INFO L226 Difference]: Without dead ends: 24727 [2018-11-12 19:12:11,998 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 434 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-11-12 19:12:12,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24727 states. [2018-11-12 19:12:12,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24727 to 23619. [2018-11-12 19:12:12,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23619 states. [2018-11-12 19:12:12,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23619 states to 23619 states and 30133 transitions. [2018-11-12 19:12:12,561 INFO L78 Accepts]: Start accepts. Automaton has 23619 states and 30133 transitions. Word has length 218 [2018-11-12 19:12:12,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:12:12,562 INFO L480 AbstractCegarLoop]: Abstraction has 23619 states and 30133 transitions. [2018-11-12 19:12:12,562 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 19:12:12,562 INFO L276 IsEmpty]: Start isEmpty. Operand 23619 states and 30133 transitions. [2018-11-12 19:12:12,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2018-11-12 19:12:12,592 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:12:12,593 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, 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] [2018-11-12 19:12:12,593 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:12:12,593 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:12:12,593 INFO L82 PathProgramCache]: Analyzing trace with hash -2071919887, now seen corresponding path program 1 times [2018-11-12 19:12:12,593 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:12:12,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:12:12,594 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:12:12,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:12:12,595 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:12:12,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:12:13,334 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 89 proven. 2 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-12 19:12:13,334 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:12:13,334 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:12:13,334 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 239 with the following transitions: [2018-11-12 19:12:13,335 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [365], [367], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [746], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 19:12:13,342 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:12:13,343 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:12:13,455 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:12:13,464 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:12:13,464 INFO L272 AbstractInterpreter]: Visited 113 different actions 113 times. Never merged. Never widened. Performed 1124 root evaluator evaluations with a maximum evaluation depth of 6. Performed 1124 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Never found a fixpoint. Largest state had 24 variables. [2018-11-12 19:12:13,500 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:12:13,500 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:12:14,259 INFO L227 lantSequenceWeakener]: Weakened 229 states. On average, predicates are now at 77.88% of their original sizes. [2018-11-12 19:12:14,259 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:12:14,735 INFO L415 sIntCurrentIteration]: We unified 237 AI predicates to 237 [2018-11-12 19:12:14,735 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:12:14,736 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:12:14,736 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2018-11-12 19:12:14,736 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:12:14,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-12 19:12:14,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-12 19:12:14,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-12 19:12:14,737 INFO L87 Difference]: Start difference. First operand 23619 states and 30133 transitions. Second operand 8 states. [2018-11-12 19:12:35,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:12:35,350 INFO L93 Difference]: Finished difference Result 46926 states and 59922 transitions. [2018-11-12 19:12:35,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-12 19:12:35,350 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 238 [2018-11-12 19:12:35,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:12:35,438 INFO L225 Difference]: With dead ends: 46926 [2018-11-12 19:12:35,438 INFO L226 Difference]: Without dead ends: 23621 [2018-11-12 19:12:35,511 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 239 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-12 19:12:35,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23621 states. [2018-11-12 19:12:35,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23621 to 23619. [2018-11-12 19:12:35,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23619 states. [2018-11-12 19:12:35,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23619 states to 23619 states and 30109 transitions. [2018-11-12 19:12:35,926 INFO L78 Accepts]: Start accepts. Automaton has 23619 states and 30109 transitions. Word has length 238 [2018-11-12 19:12:35,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:12:35,926 INFO L480 AbstractCegarLoop]: Abstraction has 23619 states and 30109 transitions. [2018-11-12 19:12:35,927 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-12 19:12:35,927 INFO L276 IsEmpty]: Start isEmpty. Operand 23619 states and 30109 transitions. [2018-11-12 19:12:35,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2018-11-12 19:12:35,957 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:12:35,958 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, 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, 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] [2018-11-12 19:12:35,958 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:12:35,958 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:12:35,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1405899324, now seen corresponding path program 1 times [2018-11-12 19:12:35,959 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:12:35,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:12:35,960 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:12:35,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:12:35,961 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:12:36,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:12:36,283 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:12:36,596 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 132 proven. 242 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-12 19:12:36,596 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:12:36,596 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:12:36,597 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 338 with the following transitions: [2018-11-12 19:12:36,597 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [365], [367], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [633], [638], [640], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [711], [715], [719], [723], [727], [731], [734], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 19:12:36,601 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:12:36,601 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:12:36,666 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:12:37,264 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 19:12:37,265 INFO L272 AbstractInterpreter]: Visited 115 different actions 768 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Performed 10882 root evaluator evaluations with a maximum evaluation depth of 6. Performed 10882 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:12:37,283 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:12:37,283 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 19:12:37,283 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:12:37,283 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-12 19:12:37,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:12:37,293 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 19:12:37,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:12:37,391 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 19:12:37,589 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 347 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2018-11-12 19:12:37,589 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 19:12:37,777 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 214 proven. 84 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2018-11-12 19:12:37,797 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-12 19:12:37,798 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-12 19:12:37,798 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-12 19:12:37,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-12 19:12:37,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-12 19:12:37,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-12 19:12:37,799 INFO L87 Difference]: Start difference. First operand 23619 states and 30109 transitions. Second operand 9 states. [2018-11-12 19:12:45,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:12:45,339 INFO L93 Difference]: Finished difference Result 49459 states and 63530 transitions. [2018-11-12 19:12:45,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-12 19:12:45,341 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 337 [2018-11-12 19:12:45,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:12:45,436 INFO L225 Difference]: With dead ends: 49459 [2018-11-12 19:12:45,436 INFO L226 Difference]: Without dead ends: 26154 [2018-11-12 19:12:45,551 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 706 GetRequests, 682 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=155, Invalid=351, Unknown=0, NotChecked=0, Total=506 [2018-11-12 19:12:45,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26154 states. [2018-11-12 19:12:45,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26154 to 25567. [2018-11-12 19:12:45,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25567 states. [2018-11-12 19:12:46,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25567 states to 25567 states and 29997 transitions. [2018-11-12 19:12:46,013 INFO L78 Accepts]: Start accepts. Automaton has 25567 states and 29997 transitions. Word has length 337 [2018-11-12 19:12:46,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:12:46,014 INFO L480 AbstractCegarLoop]: Abstraction has 25567 states and 29997 transitions. [2018-11-12 19:12:46,014 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-12 19:12:46,014 INFO L276 IsEmpty]: Start isEmpty. Operand 25567 states and 29997 transitions. [2018-11-12 19:12:46,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2018-11-12 19:12:46,035 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:12:46,036 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, 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, 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] [2018-11-12 19:12:46,036 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:12:46,037 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:12:46,037 INFO L82 PathProgramCache]: Analyzing trace with hash 560387599, now seen corresponding path program 1 times [2018-11-12 19:12:46,037 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:12:46,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:12:46,038 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:12:46,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:12:46,038 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:12:46,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:12:46,591 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 206 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:12:46,591 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:12:46,591 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:12:46,591 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 461 with the following transitions: [2018-11-12 19:12:46,592 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [365], [367], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [838], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 19:12:46,599 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:12:46,599 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:12:47,629 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:12:47,629 INFO L272 AbstractInterpreter]: Visited 295 different actions 584 times. Merged at 5 different actions 5 times. Never widened. Performed 11330 root evaluator evaluations with a maximum evaluation depth of 6. Performed 11330 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:12:47,637 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:12:47,637 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:12:48,362 INFO L227 lantSequenceWeakener]: Weakened 112 states. On average, predicates are now at 81.25% of their original sizes. [2018-11-12 19:12:48,362 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:12:48,741 INFO L415 sIntCurrentIteration]: We unified 459 AI predicates to 459 [2018-11-12 19:12:48,742 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:12:48,742 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:12:48,742 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [6] total 25 [2018-11-12 19:12:48,742 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:12:48,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-12 19:12:48,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-12 19:12:48,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2018-11-12 19:12:48,744 INFO L87 Difference]: Start difference. First operand 25567 states and 29997 transitions. Second operand 21 states. [2018-11-12 19:12:51,803 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:13:27,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:13:27,507 INFO L93 Difference]: Finished difference Result 51741 states and 60717 transitions. [2018-11-12 19:13:27,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-12 19:13:27,507 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 460 [2018-11-12 19:13:27,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:13:27,589 INFO L225 Difference]: With dead ends: 51741 [2018-11-12 19:13:27,589 INFO L226 Difference]: Without dead ends: 26488 [2018-11-12 19:13:27,647 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 474 GetRequests, 440 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=243, Invalid=1017, Unknown=0, NotChecked=0, Total=1260 [2018-11-12 19:13:27,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26488 states. [2018-11-12 19:13:27,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26488 to 26187. [2018-11-12 19:13:27,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26187 states. [2018-11-12 19:13:28,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26187 states to 26187 states and 30650 transitions. [2018-11-12 19:13:28,057 INFO L78 Accepts]: Start accepts. Automaton has 26187 states and 30650 transitions. Word has length 460 [2018-11-12 19:13:28,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:13:28,058 INFO L480 AbstractCegarLoop]: Abstraction has 26187 states and 30650 transitions. [2018-11-12 19:13:28,058 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-12 19:13:28,059 INFO L276 IsEmpty]: Start isEmpty. Operand 26187 states and 30650 transitions. [2018-11-12 19:13:28,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2018-11-12 19:13:28,085 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:13:28,085 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, 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, 2, 2, 2, 2, 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] [2018-11-12 19:13:28,085 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:13:28,086 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:13:28,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1589841736, now seen corresponding path program 1 times [2018-11-12 19:13:28,086 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:13:28,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:13:28,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:13:28,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:13:28,087 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:13:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:13:29,468 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 347 proven. 2 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-11-12 19:13:29,469 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:13:29,469 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:13:29,469 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 471 with the following transitions: [2018-11-12 19:13:29,469 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [365], [367], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [838], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1209], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 19:13:29,473 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:13:29,473 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:13:29,529 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:13:30,649 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 19:13:30,650 INFO L272 AbstractInterpreter]: Visited 211 different actions 1440 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Performed 24625 root evaluator evaluations with a maximum evaluation depth of 6. Performed 24625 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:13:30,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:13:30,658 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 19:13:30,658 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:13:30,658 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-12 19:13:30,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:13:30,668 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 19:13:30,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:13:30,799 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 19:13:31,072 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 347 proven. 2 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-11-12 19:13:31,073 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 19:13:31,315 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 347 proven. 2 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-11-12 19:13:31,335 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-12 19:13:31,336 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-12 19:13:31,336 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-12 19:13:31,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-12 19:13:31,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-12 19:13:31,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-11-12 19:13:31,337 INFO L87 Difference]: Start difference. First operand 26187 states and 30650 transitions. Second operand 9 states. [2018-11-12 19:13:38,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:13:38,584 INFO L93 Difference]: Finished difference Result 55193 states and 65902 transitions. [2018-11-12 19:13:38,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-12 19:13:38,584 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 470 [2018-11-12 19:13:38,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:13:38,689 INFO L225 Difference]: With dead ends: 55193 [2018-11-12 19:13:38,689 INFO L226 Difference]: Without dead ends: 29940 [2018-11-12 19:13:38,768 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 963 GetRequests, 944 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=252, Unknown=0, NotChecked=0, Total=380 [2018-11-12 19:13:38,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29940 states. [2018-11-12 19:13:39,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29940 to 28207. [2018-11-12 19:13:39,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28207 states. [2018-11-12 19:13:39,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28207 states to 28207 states and 32129 transitions. [2018-11-12 19:13:39,222 INFO L78 Accepts]: Start accepts. Automaton has 28207 states and 32129 transitions. Word has length 470 [2018-11-12 19:13:39,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:13:39,223 INFO L480 AbstractCegarLoop]: Abstraction has 28207 states and 32129 transitions. [2018-11-12 19:13:39,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-12 19:13:39,223 INFO L276 IsEmpty]: Start isEmpty. Operand 28207 states and 32129 transitions. [2018-11-12 19:13:39,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2018-11-12 19:13:39,237 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:13:39,237 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, 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, 2, 2, 2, 2, 2, 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] [2018-11-12 19:13:39,237 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:13:39,237 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:13:39,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1889386295, now seen corresponding path program 1 times [2018-11-12 19:13:39,238 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:13:39,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:13:39,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:13:39,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:13:39,240 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:13:39,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:13:39,631 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 5 [2018-11-12 19:13:39,757 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2018-11-12 19:13:39,758 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:13:39,758 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 19:13:39,758 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:13:39,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 19:13:39,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 19:13:39,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 19:13:39,759 INFO L87 Difference]: Start difference. First operand 28207 states and 32129 transitions. Second operand 4 states. [2018-11-12 19:13:43,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:13:43,657 INFO L93 Difference]: Finished difference Result 74571 states and 87602 transitions. [2018-11-12 19:13:43,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 19:13:43,658 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 473 [2018-11-12 19:13:43,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:13:43,811 INFO L225 Difference]: With dead ends: 74571 [2018-11-12 19:13:43,811 INFO L226 Difference]: Without dead ends: 46682 [2018-11-12 19:13:43,932 INFO L604 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 [2018-11-12 19:13:43,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46682 states. [2018-11-12 19:13:44,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46682 to 45924. [2018-11-12 19:13:44,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45924 states. [2018-11-12 19:13:44,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45924 states to 45924 states and 52609 transitions. [2018-11-12 19:13:44,696 INFO L78 Accepts]: Start accepts. Automaton has 45924 states and 52609 transitions. Word has length 473 [2018-11-12 19:13:44,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:13:44,697 INFO L480 AbstractCegarLoop]: Abstraction has 45924 states and 52609 transitions. [2018-11-12 19:13:44,697 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 19:13:44,697 INFO L276 IsEmpty]: Start isEmpty. Operand 45924 states and 52609 transitions. [2018-11-12 19:13:44,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2018-11-12 19:13:44,727 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:13:44,728 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, 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, 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] [2018-11-12 19:13:44,728 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:13:44,729 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:13:44,729 INFO L82 PathProgramCache]: Analyzing trace with hash -270304285, now seen corresponding path program 1 times [2018-11-12 19:13:44,729 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:13:44,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:13:44,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:13:44,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:13:44,730 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:13:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:13:45,561 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2018-11-12 19:13:45,561 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:13:45,561 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 19:13:45,561 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:13:45,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 19:13:45,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 19:13:45,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 19:13:45,563 INFO L87 Difference]: Start difference. First operand 45924 states and 52609 transitions. Second operand 3 states. [2018-11-12 19:13:48,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:13:48,544 INFO L93 Difference]: Finished difference Result 109650 states and 127252 transitions. [2018-11-12 19:13:48,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 19:13:48,544 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 541 [2018-11-12 19:13:48,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:13:48,679 INFO L225 Difference]: With dead ends: 109650 [2018-11-12 19:13:48,679 INFO L226 Difference]: Without dead ends: 49637 [2018-11-12 19:13:48,842 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 19:13:48,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49637 states. [2018-11-12 19:13:49,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49637 to 46553. [2018-11-12 19:13:49,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46553 states. [2018-11-12 19:13:49,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46553 states to 46553 states and 50951 transitions. [2018-11-12 19:13:49,522 INFO L78 Accepts]: Start accepts. Automaton has 46553 states and 50951 transitions. Word has length 541 [2018-11-12 19:13:49,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:13:49,523 INFO L480 AbstractCegarLoop]: Abstraction has 46553 states and 50951 transitions. [2018-11-12 19:13:49,523 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 19:13:49,523 INFO L276 IsEmpty]: Start isEmpty. Operand 46553 states and 50951 transitions. [2018-11-12 19:13:49,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 766 [2018-11-12 19:13:49,579 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:13:49,580 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 19:13:49,580 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:13:49,580 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:13:49,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1143651567, now seen corresponding path program 1 times [2018-11-12 19:13:49,580 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:13:49,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:13:49,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:13:49,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:13:49,582 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:13:49,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:13:50,167 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 184 proven. 2 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2018-11-12 19:13:50,168 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:13:50,168 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:13:50,168 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 766 with the following transitions: [2018-11-12 19:13:50,169 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [365], [367], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [857], [860], [864], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1183], [1188], [1190], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 19:13:50,173 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:13:50,174 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:13:50,614 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:13:51,505 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 19:13:51,505 INFO L272 AbstractInterpreter]: Visited 287 different actions 1133 times. Merged at 7 different actions 22 times. Never widened. Performed 18439 root evaluator evaluations with a maximum evaluation depth of 6. Performed 18439 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-12 19:13:51,512 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:13:51,512 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 19:13:51,512 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:13:51,512 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-12 19:13:51,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:13:51,524 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 19:13:51,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:13:51,725 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 19:13:52,055 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 566 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2018-11-12 19:13:52,055 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 19:13:52,971 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 184 proven. 2 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2018-11-12 19:13:52,992 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-12 19:13:52,992 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 4 [2018-11-12 19:13:52,992 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:13:52,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 19:13:52,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 19:13:52,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 19:13:52,994 INFO L87 Difference]: Start difference. First operand 46553 states and 50951 transitions. Second operand 3 states. [2018-11-12 19:13:54,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:13:54,841 INFO L93 Difference]: Finished difference Result 93091 states and 101970 transitions. [2018-11-12 19:13:54,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 19:13:54,841 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 765 [2018-11-12 19:13:54,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:13:54,944 INFO L225 Difference]: With dead ends: 93091 [2018-11-12 19:13:54,944 INFO L226 Difference]: Without dead ends: 46856 [2018-11-12 19:13:55,028 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1532 GetRequests, 1530 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 19:13:55,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46856 states. [2018-11-12 19:13:55,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46856 to 46237. [2018-11-12 19:13:55,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46237 states. [2018-11-12 19:13:55,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46237 states to 46237 states and 50566 transitions. [2018-11-12 19:13:55,599 INFO L78 Accepts]: Start accepts. Automaton has 46237 states and 50566 transitions. Word has length 765 [2018-11-12 19:13:55,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:13:55,600 INFO L480 AbstractCegarLoop]: Abstraction has 46237 states and 50566 transitions. [2018-11-12 19:13:55,600 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 19:13:55,600 INFO L276 IsEmpty]: Start isEmpty. Operand 46237 states and 50566 transitions. [2018-11-12 19:13:55,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 792 [2018-11-12 19:13:55,649 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:13:55,650 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 19:13:55,650 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:13:55,650 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:13:55,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1455468795, now seen corresponding path program 1 times [2018-11-12 19:13:55,651 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:13:55,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:13:55,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:13:55,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:13:55,652 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:13:55,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:13:56,543 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 594 proven. 40 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2018-11-12 19:13:56,544 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:13:56,544 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:13:56,544 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 792 with the following transitions: [2018-11-12 19:13:56,545 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [365], [367], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [660], [663], [667], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1513], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 19:13:56,549 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:13:56,549 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:13:56,688 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:13:57,800 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 19:13:57,800 INFO L272 AbstractInterpreter]: Visited 286 different actions 1131 times. Merged at 7 different actions 22 times. Never widened. Performed 18339 root evaluator evaluations with a maximum evaluation depth of 6. Performed 18339 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-12 19:13:57,805 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:13:57,805 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 19:13:57,805 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:13:57,805 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-12 19:13:57,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:13:57,815 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 19:13:58,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:13:58,036 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 19:13:58,354 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2018-11-12 19:13:58,355 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 19:13:58,761 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2018-11-12 19:13:58,783 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:13:58,783 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4] total 4 [2018-11-12 19:13:58,784 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:13:58,784 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 19:13:58,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 19:13:58,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-12 19:13:58,785 INFO L87 Difference]: Start difference. First operand 46237 states and 50566 transitions. Second operand 3 states. [2018-11-12 19:14:01,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:14:01,048 INFO L93 Difference]: Finished difference Result 93404 states and 102718 transitions. [2018-11-12 19:14:01,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 19:14:01,049 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 791 [2018-11-12 19:14:01,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:14:01,143 INFO L225 Difference]: With dead ends: 93404 [2018-11-12 19:14:01,143 INFO L226 Difference]: Without dead ends: 47485 [2018-11-12 19:14:01,225 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1588 GetRequests, 1582 SyntacticMatches, 4 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-12 19:14:01,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47485 states. [2018-11-12 19:14:01,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47485 to 47003. [2018-11-12 19:14:01,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47003 states. [2018-11-12 19:14:01,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47003 states to 47003 states and 51143 transitions. [2018-11-12 19:14:01,790 INFO L78 Accepts]: Start accepts. Automaton has 47003 states and 51143 transitions. Word has length 791 [2018-11-12 19:14:01,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:14:01,791 INFO L480 AbstractCegarLoop]: Abstraction has 47003 states and 51143 transitions. [2018-11-12 19:14:01,791 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 19:14:01,791 INFO L276 IsEmpty]: Start isEmpty. Operand 47003 states and 51143 transitions. [2018-11-12 19:14:01,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 842 [2018-11-12 19:14:01,830 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:14:01,830 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 19:14:01,830 INFO L423 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:14:01,830 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:14:01,831 INFO L82 PathProgramCache]: Analyzing trace with hash 294254515, now seen corresponding path program 1 times [2018-11-12 19:14:01,831 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:14:01,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:14:01,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:14:01,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:14:01,832 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:14:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:14:02,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1330 backedges. 544 proven. 112 refuted. 0 times theorem prover too weak. 674 trivial. 0 not checked. [2018-11-12 19:14:02,588 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:14:02,589 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:14:02,589 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 842 with the following transitions: [2018-11-12 19:14:02,589 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [365], [367], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [660], [663], [667], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [766], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1183], [1188], [1190], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 19:14:02,594 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:14:02,594 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:14:02,747 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:14:04,824 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 19:14:04,825 INFO L272 AbstractInterpreter]: Visited 291 different actions 2012 times. Merged at 10 different actions 63 times. Widened at 1 different actions 2 times. Performed 33169 root evaluator evaluations with a maximum evaluation depth of 6. Performed 33169 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 16 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-12 19:14:04,835 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:14:04,835 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 19:14:04,835 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:14:04,835 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-12 19:14:04,844 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:14:04,844 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 19:14:05,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:14:05,065 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 19:14:05,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1330 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 1108 trivial. 0 not checked. [2018-11-12 19:14:05,719 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 19:14:06,583 INFO L134 CoverageAnalysis]: Checked inductivity of 1330 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 1108 trivial. 0 not checked. [2018-11-12 19:14:06,604 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:14:06,604 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [5] total 9 [2018-11-12 19:14:06,604 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:14:06,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 19:14:06,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 19:14:06,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-12 19:14:06,606 INFO L87 Difference]: Start difference. First operand 47003 states and 51143 transitions. Second operand 4 states. [2018-11-12 19:14:11,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:14:11,112 INFO L93 Difference]: Finished difference Result 101808 states and 111088 transitions. [2018-11-12 19:14:11,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 19:14:11,112 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 841 [2018-11-12 19:14:11,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:14:11,115 INFO L225 Difference]: With dead ends: 101808 [2018-11-12 19:14:11,115 INFO L226 Difference]: Without dead ends: 0 [2018-11-12 19:14:11,227 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1686 GetRequests, 1678 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-12 19:14:11,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-12 19:14:11,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-12 19:14:11,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-12 19:14:11,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-12 19:14:11,229 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 841 [2018-11-12 19:14:11,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:14:11,229 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-12 19:14:11,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 19:14:11,229 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-12 19:14:11,229 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-12 19:14:11,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-12 19:14:11,300 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:11,319 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:11,331 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:11,335 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:11,344 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:11,372 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:11,376 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:11,381 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:11,387 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:11,390 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:11,445 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:11,481 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:11,507 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:11,511 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:11,515 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:11,522 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:11,526 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:11,531 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:11,619 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:11,623 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:11,726 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:11,773 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:11,776 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:11,819 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:11,822 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:11,847 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,066 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,163 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,210 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,213 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,221 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,270 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,272 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,272 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,324 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,357 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,365 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,384 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,390 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,393 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,400 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,457 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,458 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,465 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,470 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,492 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,539 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,586 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,591 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,594 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,608 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,626 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,633 WARN L179 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 429 DAG size of output: 160 [2018-11-12 19:14:12,679 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,682 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,690 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,697 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,699 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,699 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,738 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,770 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,776 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,792 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,796 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,800 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,805 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,859 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,861 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,869 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,873 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,891 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,943 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,945 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,947 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,966 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,973 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,991 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:12,999 WARN L179 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 426 DAG size of output: 160 [2018-11-12 19:14:13,015 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,034 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,039 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,054 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,063 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,070 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,077 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,089 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,108 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,110 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,111 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,116 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,121 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,123 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,124 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,137 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,144 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,155 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,160 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,161 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,165 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,171 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,185 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,186 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,188 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,201 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,210 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,212 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,230 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,243 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,252 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,261 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,279 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,284 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,300 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,308 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,309 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,317 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,334 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,511 WARN L179 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2018-11-12 19:14:13,514 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,539 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,559 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,567 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,586 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,598 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,601 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,604 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,623 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,639 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,640 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,648 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,665 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,679 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,690 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,704 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,725 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,744 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,745 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,748 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,755 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,770 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,778 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,779 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,782 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,794 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,817 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,828 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,834 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,846 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,847 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,850 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,860 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,865 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,881 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,891 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,892 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,903 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,922 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,937 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,951 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,952 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,957 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,958 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,960 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,963 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,971 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,972 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,973 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,980 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,984 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:13,988 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,005 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,007 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,008 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,010 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,012 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,019 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,021 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,037 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,049 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,056 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,060 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,061 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,074 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,080 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,089 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,095 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,104 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,109 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,130 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,136 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,144 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,154 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,170 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,171 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,180 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,192 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,203 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,210 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,237 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,238 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,244 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,254 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,265 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,276 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,289 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,291 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,292 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,294 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,298 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,301 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,303 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,311 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,324 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,327 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,341 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,344 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,352 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,356 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,357 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,359 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,361 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,365 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,366 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,371 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,387 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,387 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,391 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,411 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,419 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,428 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,429 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,436 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,439 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,440 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,443 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,459 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,465 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,467 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,469 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,471 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,476 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,481 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,483 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,486 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,489 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,499 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,500 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,502 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,511 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,518 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,519 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,523 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,532 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,565 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,571 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,573 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,574 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,577 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,580 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,592 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,597 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,601 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,602 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,603 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,605 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,606 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,609 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,619 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,622 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,625 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,628 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,638 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,639 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,642 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,648 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,654 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,662 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,670 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,671 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,683 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,685 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,692 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,703 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,709 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,711 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,714 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,725 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,749 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,760 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,761 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,765 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,766 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,769 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,778 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,783 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,796 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,799 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,800 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,803 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,820 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,823 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,828 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,845 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,864 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,872 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,877 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,893 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,906 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,916 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,916 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,918 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,921 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,923 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,932 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,944 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,951 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:14,956 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 19:14:15,616 WARN L179 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 34 [2018-11-12 19:14:15,966 WARN L179 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 56 [2018-11-12 19:14:26,939 WARN L179 SmtUtils]: Spent 10.93 s on a formula simplification. DAG size of input: 775 DAG size of output: 215 [2018-11-12 19:14:34,971 WARN L179 SmtUtils]: Spent 8.00 s on a formula simplification. DAG size of input: 626 DAG size of output: 208 [2018-11-12 19:14:36,497 WARN L179 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 217 DAG size of output: 105 [2018-11-12 19:14:38,073 WARN L179 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 217 DAG size of output: 105 Received shutdown request... [2018-11-12 19:14:49,178 WARN L187 SmtUtils]: Removed 22 from assertion stack [2018-11-12 19:14:49,178 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-11-12 19:14:49,180 INFO L168 Benchmark]: Toolchain (without parser) took 211188.02 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.8 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -248.2 MB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2018-11-12 19:14:49,181 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 19:14:49,182 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1321.01 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.9 MB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. [2018-11-12 19:14:49,182 INFO L168 Benchmark]: Boogie Procedure Inliner took 219.99 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: -884.1 MB). Peak memory consumption was 31.2 MB. Max. memory is 7.1 GB. [2018-11-12 19:14:49,183 INFO L168 Benchmark]: Boogie Preprocessor took 154.99 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: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2018-11-12 19:14:49,184 INFO L168 Benchmark]: RCFGBuilder took 6816.44 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: 288.3 MB). Peak memory consumption was 288.3 MB. Max. memory is 7.1 GB. [2018-11-12 19:14:49,185 INFO L168 Benchmark]: TraceAbstraction took 202670.33 ms. Allocated memory was 2.3 GB in the beginning and 4.3 GB in the end (delta: 2.1 GB). Free memory was 1.9 GB in the beginning and 1.7 GB in the end (delta: 228.0 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-11-12 19:14:49,194 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1321.01 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.9 MB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 219.99 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: -884.1 MB). Peak memory consumption was 31.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 154.99 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: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6816.44 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: 288.3 MB). Peak memory consumption was 288.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 202670.33 ms. Allocated memory was 2.3 GB in the beginning and 4.3 GB in the end (delta: 2.1 GB). Free memory was 1.9 GB in the beginning and 1.7 GB in the end (delta: 228.0 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 133]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 693. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown